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Chong ZK, Hofmann A, Haye M, Wilson S, Sohoo I, Alassali A, Kuchta K. Lab-scale and full-scale industrial composting of biodegradable plastic blends for packaging. OPEN RESEARCH EUROPE 2024; 2:101. [PMID: 38420136 PMCID: PMC10899788 DOI: 10.12688/openreseurope.14893.3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Accepted: 01/15/2024] [Indexed: 03/02/2024]
Abstract
Background The acceptance of compostable plastic packaging in industrial composting plants is not universal despite available certification due to the persistence of plastic residues after composting. To better understand this discrepancy, this study compared the disintegration rates of two blends designed for rigid packaging (polylactic acid based) and soft packaging (polybutylene succinate based) in lab-scale composting tests and in an industrial composting plant. Methods A lab-scale composting test was conducted in triplicates according to ISO 20200 for 4, 8 and 12 weeks to check the disintegration potential of the blends. Duplicate test material were then exposed in the compost pile of an industrial composting plant for a duration of 3 weeks and compared with a supplementary lab-scale test of the same duration. Results The rigid packaging samples (1 mm thickness) retained on average 76.4%, 59.0% and 55.7% of its mass after 4, 8 and 12 weeks respectively in the lab-scale. In the plant, the average remaining mass was 98.3%, much higher compared to the average of 68.9% after 3 weeks in the supplementary lab-scale test. The soft packaging samples (109±9 µm sample thickness) retained on average 45.4%, 10.9% and 0.3% of its mass after 4, 8 and 12 weeks respectively in the lab-scale. In the plant, a high average remaining mass was also observed (93.9%). The supplementary lab-scale test showed similar remaining mass but higher fragmentation after 3 weeks. Conclusions The results show that the samples achieved significant disintegration in the lab-scale but not in the plant. The difference between the tests that might further contribute to the differing degradation rates is the composition and heterogeneity of the composting substrate. Therefore, the substrate composition and thermophilic composting duration of individual plants are important considerations to determine the suitability of treating compostable plastic in real-world conditions.
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Affiliation(s)
- Zhi Kai Chong
- Circular Resource Engineering and Management (CREM), Hamburg University of Technology, Hamburg, 21073, Germany
| | - Alexander Hofmann
- Circular Resource Engineering and Management (CREM), Hamburg University of Technology, Hamburg, 21073, Germany
| | - Marie Haye
- Department of Energy and Environmental Engineering (GEn), Institut National des Sciences Appliquées de Lyon, Villeurbanne, 69100, France
| | - Sharon Wilson
- Circular Resource Engineering and Management (CREM), Hamburg University of Technology, Hamburg, 21073, Germany
| | - Ihsanullah Sohoo
- Circular Resource Engineering and Management (CREM), Hamburg University of Technology, Hamburg, 21073, Germany
| | - Ayah Alassali
- Circular Resource Engineering and Management (CREM), Hamburg University of Technology, Hamburg, 21073, Germany
| | - Kerstin Kuchta
- Circular Resource Engineering and Management (CREM), Hamburg University of Technology, Hamburg, 21073, Germany
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Zabidi N'A, Zainal NN, Tawakkal ISMA, Mohd Basri MS, Ariffin SH, Naim MN. Effect of thymol on properties of bionanocomposites from poly (lactic acid)/poly (butylene succinate)/nanofibrillated cellulose for food packaging application. Int J Biol Macromol 2023; 251:126212. [PMID: 37567533 DOI: 10.1016/j.ijbiomac.2023.126212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 06/18/2023] [Accepted: 08/05/2023] [Indexed: 08/13/2023]
Abstract
The present study developed the formulation of active bionanocomposites films endowed with the abilities of high biodegradability and antimicrobials for active packaging applications. The aim of this work was to prepare poly (lactic acid)/poly (butylene succinate) (PLA/PBS) blended films reinforced with different concentrations of nanofibrillated cellulose (NFC) and 9 % of thymol essential oil (EO) using the casting method. The active films were further evaluated through Fourier transform infrared spectroscopy (FTIR); as well as mechanical, physical, water vapour permeability (WVP), thermal analysis (TGA), biodegradation, morphological, and antimicrobial (% reduction of bacteria) testing. The tensile strength (TS) of PLA/PBS blend films increased by 12 % with the incorporation of 2 wt% of NFC. The PLA/PBS/NFC with 9 % thymol EO has a good water barrier performance with its tensile strength, elongation at break, and tensile modulus was 13.2 MPa, 13.1 %, and 513 MPa respectively. The presence of NFC promoted the disintegration of PLA/PBS films by 70.5 %. These films promoted the antibacterial activity against S. aureus and E. coli. The study demonstrates that the developed films improved the qualities of chicken fillets and have great potential to be used as active bionanocomposites in food packaging applications.
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Affiliation(s)
- Nurul 'Afifah Zabidi
- Department of Process and Food Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
| | - Nur Najiha Zainal
- Department of Process and Food Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
| | - Intan Syafinaz Mohamed Amin Tawakkal
- Department of Process and Food Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia; Laboratory of Halal Services, Halal Products Research Institute, Putra Infoport, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia.
| | - Mohd Salahuddin Mohd Basri
- Department of Process and Food Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia; Laboratory of Halal Services, Halal Products Research Institute, Putra Infoport, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia; Laboratory of Biopolymer and Derivatives, Institute of Tropical Forestry and Forest Products (INTROP), Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
| | - Siti Hajar Ariffin
- Department of Process and Food Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia; Laboratory of Halal Services, Halal Products Research Institute, Putra Infoport, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
| | - Mohd Nazli Naim
- Department of Process and Food Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
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Correia TR, Almeida RHG, Campos GN, Santos CC, Colaço MV, Figueiredo MAG, Sousa AMF, Silva ALN. Advantages of treating sponge-gourd waste by mechanical refining on the properties of fiber-based poly(butylene adipate-co-terephthalate)/polylactide biocomposites. AN ACAD BRAS CIENC 2023; 95:e20230003. [PMID: 37672400 DOI: 10.1590/0001-3765202320230003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Accepted: 02/25/2023] [Indexed: 09/08/2023] Open
Abstract
This study compares the morphology, thermal, and dynamic-mechanical properties of composites based on polybutylene adipate terephthalate/polylactide biocomposites with sponge gourd waste treated code as R, and non-treated sponge gourd, coded as NR, by mechanical disc refining after milled process. Extrusion followed by compression molding was used to produce biocomposites with fiber contents of 0, 2.5, 5, 10, and 15% wt/wt for R and NR sponge gourd fibers. Scanning electron microscopy analysis reveals that NR has the morphology of a rigid tubular shape, whereas R is a thinner, twisted, and fibrillated fiber. Regardless of the type of sponge gourd fiber used, the thermal stability of the composite decreases as the sponge gourd content increases. At 25°C, the biocomposite with 10%wt/wt R fiber has the highest storage modulus value. The comparison of Tangent peak values reveals that the presence of sponge gourd fibers reduces the energy dissipation of the biocomposites. The analysis of the loss modulus at 25°C reveals that R fiber contributes more to the reduction of energy dissipation of the biocomposites than NR. Furthermore, the Cole-Cole plot shows that R and NR fibers are dispersed and do not significantly change the homogeneity of the biopolymer systems.
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Affiliation(s)
- Thiago R Correia
- Universidade do Estado do Rio de Janeiro, Instituto de Química, Rua São Francisco Xavier, 524, Pavilhão Haroldo Lisboa da Cunha, Maracanã, 20550-900 Rio de Janeiro, RJ, Brazil
| | - Renan Henriques G Almeida
- Universidade Federal do Rio de Janeiro, Instituto de Macromoléculas Professora Eloisa Mano, Avenida Horário Macedo, 2013, Bloco J, Cidade Universitária, 21941-598 Rio de Janeiro, RJ, Brazil
| | - Gustavo N Campos
- Universidade do Estado do Rio de Janeiro, Instituto de Química, Rua São Francisco Xavier, 524, Pavilhão Haroldo Lisboa da Cunha, Maracanã, 20550-900 Rio de Janeiro, RJ, Brazil
| | - Caio C Santos
- Universidade do Estado do Rio de Janeiro, Instituto de Química, Rua São Francisco Xavier, 524, Pavilhão Haroldo Lisboa da Cunha, Maracanã, 20550-900 Rio de Janeiro, RJ, Brazil
| | - Marcos Vinicius Colaço
- Universidade do Estado do Rio de Janeiro, Instituto de Física, Rua São Francisco Xavier, 524, Bloco B, Maracanã, 20550-900 Rio de Janeiro, RJ, Brazil
| | - Marco Antonio G Figueiredo
- Universidade do Estado do Rio de Janeiro, Instituto de Química, Rua São Francisco Xavier, 524, Pavilhão Haroldo Lisboa da Cunha, Maracanã, 20550-900 Rio de Janeiro, RJ, Brazil
| | - Ana Maria F Sousa
- Universidade do Estado do Rio de Janeiro, Instituto de Química, Rua São Francisco Xavier, 524, Pavilhão Haroldo Lisboa da Cunha, Maracanã, 20550-900 Rio de Janeiro, RJ, Brazil
| | - Ana Lúcia N Silva
- Universidade Federal do Rio de Janeiro, Instituto de Macromoléculas Professora Eloisa Mano, Avenida Horário Macedo, 2013, Bloco J, Cidade Universitária, 21941-598 Rio de Janeiro, RJ, Brazil
- Programa de Engenharia Ambiental, Universidade Federal do Rio de Janeiro, Avenida Horário Macedo, 2013, Bloco J, Cidade Universitária, 21941-598 Rio de Janeiro, RJ, Brazil
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Zhang L, You H, Chen J, Huang B, Cui Y, Hossain KB, Chen Q, Cai M, Qian Q. Surface structures changes and biofilm communities development of degradable plastics during aging in coastal seawater. MARINE POLLUTION BULLETIN 2023; 193:114996. [PMID: 37301614 DOI: 10.1016/j.marpolbul.2023.114996] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 04/17/2023] [Accepted: 04/25/2023] [Indexed: 06/12/2023]
Abstract
Biodegradable plastics (BPs) are a suitable alternative to conventional plastics. Still, their excessive or unplanned use may disrupt the abundance and community structure of the microbial population. To this end, a 58-day experiment in which biodegradable plastic objects, such as bags and boxes, were exposed to near-coastal seawater was conducted. They also assessed how they affected the diversity and organization of bacterial populations in seawater and on the surface of BPs products. It is evident that after the exposure time, both BP's bag and box products deteriorate in the ocean to varying degrees. The results of high-throughput sequencing of bacterial communities in seawater and those colonized on BPs products reveal significant differences in microbial community structures between seawater and BPs plastic samples. These suggest that the degradation of biodegradable plastics is shadowed by microorganisms and exposure time, while BP products influence the structural characteristics of microbial communities.
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Affiliation(s)
- Lin Zhang
- College of Environmental and Resource Sciences, College of Carbon Neutral Modern Industry, Fujian Normal University, Fuzhou 350117, China; Engineering Research Center of Polymer Green Recycling of Ministry of Education, Fujian Normal University, Fuzhou 350117, China
| | - Huimin You
- State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361102, China; Coastal and Ocean Management Institute, Xiamen University, Xiamen 361102, China; College of Environment and Ecology, Xiamen University, Xiamen 361102, China
| | - Jianfei Chen
- College of Environmental and Resource Sciences, College of Carbon Neutral Modern Industry, Fujian Normal University, Fuzhou 350117, China; Engineering Research Center of Polymer Green Recycling of Ministry of Education, Fujian Normal University, Fuzhou 350117, China
| | - Baoquan Huang
- College of Environmental and Resource Sciences, College of Carbon Neutral Modern Industry, Fujian Normal University, Fuzhou 350117, China; Engineering Research Center of Polymer Green Recycling of Ministry of Education, Fujian Normal University, Fuzhou 350117, China
| | - Yaozong Cui
- College of Ocean and Earth Sciences, Xiamen University, Xiamen 361102, China
| | - Kazi Belayet Hossain
- State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361102, China; Coastal and Ocean Management Institute, Xiamen University, Xiamen 361102, China; College of Environment and Ecology, Xiamen University, Xiamen 361102, China
| | - Qinghua Chen
- College of Environmental and Resource Sciences, College of Carbon Neutral Modern Industry, Fujian Normal University, Fuzhou 350117, China; Engineering Research Center of Polymer Green Recycling of Ministry of Education, Fujian Normal University, Fuzhou 350117, China
| | - Minggang Cai
- State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361102, China; Coastal and Ocean Management Institute, Xiamen University, Xiamen 361102, China; College of Ocean and Earth Sciences, Xiamen University, Xiamen 361102, China; Fujian Provincial Key Laboratory for Coastal Ecology and Environmental Studies, Xiamen University, Xiamen 361102, China.
| | - Qingrong Qian
- College of Environmental and Resource Sciences, College of Carbon Neutral Modern Industry, Fujian Normal University, Fuzhou 350117, China; Engineering Research Center of Polymer Green Recycling of Ministry of Education, Fujian Normal University, Fuzhou 350117, China.
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Álvarez-Méndez SJ, Ramos-Suárez JL, Ritter A, Mata González J, Camacho Pérez Á. Anaerobic digestion of commercial PLA and PBAT biodegradable plastic bags: Potential biogas production and 1H NMR and ATR-FTIR assessed biodegradation. Heliyon 2023; 9:e16691. [PMID: 37303513 PMCID: PMC10248121 DOI: 10.1016/j.heliyon.2023.e16691] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 04/26/2023] [Accepted: 05/24/2023] [Indexed: 06/13/2023] Open
Abstract
Bioplastics aim to substitute conventional plastics in most applications, a critical one being the collection of organic wastes for composting or anaerobic degradation. The anaerobic biodegradability of six commercial bags composed of PBAT or PLA/PBAT blends and certified as compostable [1] was studied using 1H NMR and ATR-FTIR techniques. This study aims to elucidate if commercial bioplastic bags are biodegradable under conventional conditions found in anaerobic digestates. Results showed that all studied bags are hardly anaerobically biodegradable at mesophilic temperatures. The biogas yield resulting from the anaerobic digestion under laboratory conditions oscillated between 270.3 ± 45.5 L kgVS-1 for a trash bag composed of 26.64 ± 0.03%/73.36 ± 0.03% PLA/PBAT and 36.7 ± 25.0 L kgVS-1 for a bag composed of 21.24 ± 0.08%/78.76 ± 0.08% PLA/PBAT. The degree of biodegradation did not correlate with PLA/PBAT molar composition. However, 1H NMR characterization showed that the anaerobic biodegradation occurred mostly in the PLA fraction. No bioplastics biodegradation products were detected in the digestate fraction (<2 mm). Finally, none of the biodegraded bags comply with the EN 13432 standard.
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Affiliation(s)
- Sergio Joaquín Álvarez-Méndez
- Departamento de Ingeniería Agraria y del Medio Natural. Universidad de La Laguna. La Laguna, Tenerife, Spain
- Instituto Universitario de Bio-Orgánica Antonio González, Universidad de La Laguna, Avda. Astrofísico Francisco Sánchez, 38206 La Laguna, Tenerife, Spain
| | - Juan Luis Ramos-Suárez
- Departamento de Ingeniería Agraria y del Medio Natural. Universidad de La Laguna. La Laguna, Tenerife, Spain
| | - Axel Ritter
- Área de Ingeniería Agroforestal, Universidad de La Laguna, Spain
| | - Javier Mata González
- Departamento de Ingeniería Agraria y del Medio Natural. Universidad de La Laguna. La Laguna, Tenerife, Spain
| | - Ángeles Camacho Pérez
- Departamento de Ingeniería Agraria y del Medio Natural. Universidad de La Laguna. La Laguna, Tenerife, Spain
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Rives-Castillo SCH, Correa-Pacheco ZN, Corona-Rangel ML, Hernández-López M, Barrera-Necha LL, Ventura-Aguilar RI, Bautista-Baños S. The Effect of Netting Bags on the Postharvest Quality, Bioactive and Nutritional Compounds, and the Spoilage Microorganisms Content of Bell Peppers. Foods 2023; 12:foods12102071. [PMID: 37238888 DOI: 10.3390/foods12102071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 05/16/2023] [Accepted: 05/18/2023] [Indexed: 05/28/2023] Open
Abstract
The packaging nets used for bell peppers act as a form of protection. However, the manufacturing is based on polymers that cause serious environmental problems. The effects of nets made of biodegradable materials, such as poly(lactic) acid (PLA), poly(butylene adipate-co-terephthalate) (PBAT), and cactus stem residues, were evaluated on four different colors of 'California Wonder' bell peppers stored over a 25-day storage period under controlled and ambient temperature conditions. Compared to commercial polyethylene nets, the bell peppers kept in the biodegradable nets did not show notable differences with respect to color, weight loss, total soluble solids, and titratable acidity. However, there were significant differences (p < 0.05) in terms of phenol content, carotenoids (orange bell peppers), anthocyanins, and vitamin C, with an overall tendency to show a higher content in those kept in PLA 60%/PBTA 40%/cactus stem flour 3% compared to commercial packaging. In addition, the same net notably reduced the development of bacteria, fungi, and yeasts during the storage of red, orange, and yellow bell peppers. As postharvest packaging for bell peppers, this net could be considered a viable option for the storage of this product.
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Affiliation(s)
- Selene C H Rives-Castillo
- Instituto Politécnico Nacional, Centro de Desarrollo de Productos Bióticos, Carretera Yautepec-Jojutla, km. 6, CEPROBI No. 8, San Isidro, Yautepec, Morelos 62731, Mexico
| | - Zormy N Correa-Pacheco
- Instituto Politécnico Nacional, Centro de Desarrollo de Productos Bióticos, Carretera Yautepec-Jojutla, km. 6, CEPROBI No. 8, San Isidro, Yautepec, Morelos 62731, Mexico
| | - María L Corona-Rangel
- Instituto Politécnico Nacional, Centro de Desarrollo de Productos Bióticos, Carretera Yautepec-Jojutla, km. 6, CEPROBI No. 8, San Isidro, Yautepec, Morelos 62731, Mexico
| | - Mónica Hernández-López
- Instituto Politécnico Nacional, Centro de Desarrollo de Productos Bióticos, Carretera Yautepec-Jojutla, km. 6, CEPROBI No. 8, San Isidro, Yautepec, Morelos 62731, Mexico
| | - Laura L Barrera-Necha
- Instituto Politécnico Nacional, Centro de Desarrollo de Productos Bióticos, Carretera Yautepec-Jojutla, km. 6, CEPROBI No. 8, San Isidro, Yautepec, Morelos 62731, Mexico
| | - Rosa I Ventura-Aguilar
- CONACYT-Centro de Desarrollo de Productos Bióticos, Instituto Politécnico Nacional, Carretera Yautepec-Jojutla, km. 6, CEPROBI No. 8, San Isidro, Yautepec, Morelos 62731, Mexico
| | - Silvia Bautista-Baños
- Instituto Politécnico Nacional, Centro de Desarrollo de Productos Bióticos, Carretera Yautepec-Jojutla, km. 6, CEPROBI No. 8, San Isidro, Yautepec, Morelos 62731, Mexico
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Agrawal R, Kumar A, Mohammed MKA, Singh S. Biomaterial types, properties, medical applications, and other factors: a recent review. JOURNAL OF ZHEJIANG UNIVERSITY. SCIENCE. A 2023. [PMCID: PMC9986044 DOI: 10.1631/jzus.a2200403] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Accepted: 11/02/2022] [Indexed: 10/15/2023]
Abstract
Biomaterial research has been going on for several years, and many companies are heavily investing in new product development. However, it is a contentious field of science. Biomaterial science is a field that combines materials science and medicine. The replacement or restoration of damaged tissues or organs enhances the patient’s quality of life. The deciding aspect is whether or not the body will accept a biomaterial. A biomaterial used for an implant must possess certain qualities to survive a long time. When a biomaterial is used for an implant, it must have specific properties to be long-lasting. A variety of materials are used in biomedical applications. They are widely used today and can be used individually or in combination. This review will aid researchers in the selection and assessment of biomaterials. Before using a biomaterial, its mechanical and physical properties should be considered. Recent biomaterials have a structure that closely resembles that of tissue. Anti-infective biomaterials and surfaces are being developed using advanced antifouling, bactericidal, and antibiofilm technologies. This review tries to cover critical features of biomaterials needed for tissue engineering, such as bioactivity, self-assembly, structural hierarchy, applications, heart valves, skin repair, bio-design, essential ideas in biomaterials, bioactive biomaterials, bioresorbable biomaterials, biomaterials in medical practice, biomedical function for design, biomaterial properties such as biocompatibility, heat response, non-toxicity, mechanical properties, physical properties, wear, and corrosion, as well as biomaterial properties such surfaces that are antibacterial, nanostructured materials, and biofilm disrupting compounds, are all being investigated. It is technically possible to stop the spread of implant infection.
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Affiliation(s)
- Reeya Agrawal
- VLSI Research Centre, GLA University, 281406 Mathura, India
- Microelectronics & VLSI Lab, National Institute of Technology, Patna, 800005 India
| | - Anjan Kumar
- VLSI Research Centre, GLA University, 281406 Mathura, India
| | - Mustafa K. A. Mohammed
- Radiological Techniques Department, Al-Mustaqbal University College, 51001 Hillah Babylon, Iraq
| | - Sangeeta Singh
- Microelectronics & VLSI Lab, National Institute of Technology, Patna, 800005 India
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Panariello L, Coltelli MB, Hadrich A, Braca F, Fiori S, Haviv A, Miketa F, Lazzeri A, Staebler A, Gigante V, Cinelli P. Antimicrobial and Gas Barrier Crustaceans and Fungal Chitin-Based Coatings on Biodegradable Bioplastic Films. Polymers (Basel) 2022; 14:polym14235211. [PMID: 36501606 PMCID: PMC9737123 DOI: 10.3390/polym14235211] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 11/21/2022] [Accepted: 11/25/2022] [Indexed: 12/03/2022] Open
Abstract
Chitin nanofibrils (CN) can be obtained from crustaceans and fungal sources and can be used for preparing coatings for bioplastic films, that are fundamental for developing a safe and sustainable biodegradable food packaging. Coatings with different concentrations of CN from shrimps were applied on different bioplastic substrates, like Poly (butylene succinate-co-adipate)/Poly(3-hydroxybutyrate-co-3-hydroxyvalerate (PBSA/PHBV) blend, Polybutylene succinate (PBS), and Polybutylene adipate terephthalate/Poly(lactic acid) (PBAT/PLA) blend, but the adhesion to the substrates was scarce. On the contrary, the fungal-based CN showed a better adhesion. Additionally, it was found that the use of an additive based on oligomeric lactic acid was useful to prepare a coating with an improved adhesion to bioplastics. The gas barrier properties to oxygen and water vapour of coated and un-coated films were measured, revealing an improvement of these properties thanks to applied coatings, especially towards the oxygen. Antimicrobial properties and biodegradation capacity were also evaluated revealing an antibacterial effect of the coatings that did not significantly interfere with their biodegradability. The results are discussed and interpreted considering the correlation between composition and macromolecular structures with the observed functional properties.
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Affiliation(s)
- Luca Panariello
- Department of Civil and Industrial Engineering, University of Pisa, 56122 Pisa, Italy
- National Interuniversity Consortium of Materials Science and Technology (INSTM), 50121 Florence, Italy
| | - Maria-Beatrice Coltelli
- Department of Civil and Industrial Engineering, University of Pisa, 56122 Pisa, Italy
- National Interuniversity Consortium of Materials Science and Technology (INSTM), 50121 Florence, Italy
- Correspondence: (M.-B.C.); (P.C.); Tel.: +39-05-0221-7856 (M.-B.C.); +39-05-0221-7869 (P.C.)
| | - Ahdi Hadrich
- Biomass Valorization Platform-Materials, CELABOR s.c.r.l., 4650 Chaineux, Belgium
| | | | - Stefano Fiori
- Condensia Quimica, C/Junqueras 11-A, 08003 Barcelona, Spain
| | - Amit Haviv
- TIPA, 6 HaHarash St., Hod Hasharon 4524079, Israel
| | - Filip Miketa
- Bio-Mi Ltd., Put Brdo 15, 51 211 Matulji, Croatia
| | - Andrea Lazzeri
- Department of Civil and Industrial Engineering, University of Pisa, 56122 Pisa, Italy
- National Interuniversity Consortium of Materials Science and Technology (INSTM), 50121 Florence, Italy
- Planet Bioplastics s.r.l., Via S. Giovanni Bosco 23, 56017 Pisa, Italy
| | - Andreas Staebler
- Fraunhfer-Institute for Process Engineering and Packaging, 85354 Freising, Germany
| | - Vito Gigante
- Department of Civil and Industrial Engineering, University of Pisa, 56122 Pisa, Italy
- National Interuniversity Consortium of Materials Science and Technology (INSTM), 50121 Florence, Italy
| | - Patrizia Cinelli
- Department of Civil and Industrial Engineering, University of Pisa, 56122 Pisa, Italy
- National Interuniversity Consortium of Materials Science and Technology (INSTM), 50121 Florence, Italy
- Correspondence: (M.-B.C.); (P.C.); Tel.: +39-05-0221-7856 (M.-B.C.); +39-05-0221-7869 (P.C.)
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Rebelo RC, Gonçalves LP, Fonseca AC, Fonseca J, Rola M, Coelho JF, Rola F, Serra AC. Increased degradation of PLA/PBAT blends with organic acids and derivatives in outdoor weathering and marine environment. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.125223] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Chen M, Cai C, Bao J, Du Y, Gao H, Liu X. Effect of aliphatic segment length and content on crystallization and biodegradation properties of aliphatic-aromatic co-polyesters. Polym Degrad Stab 2022. [DOI: 10.1016/j.polymdegradstab.2022.110080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Bio-Based Plastics Production, Impact and End of Life: A Literature Review and Content Analysis. SUSTAINABILITY 2022. [DOI: 10.3390/su14084855] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The accumulation of plastic wastes is one of the most widely spread problems affecting the environment. The reality that plastics can be made from renewable resources and degrade naturally has prompted academics to think outside the box to develop “better for the environment” items. In this paper, a bibliometric analysis of the scholarly publications related to bio-based plastics within the last 20 years is presented. Annual progression, geographic and research area distribution, and keyword co-occurrence were all examined. Six distinct clusters emerged from keyword analysis, which were further categorized into three directions: production to marketing; impact on the environment, economy, and society; and end-of-life (EoL) options. The major focus was on how to counter the weaknesses and challenges of bio-based plastics and take opportunities using the inherent advantages of bio-based plastics. Comprehensive studies regarding the impact of bio-based plastics on the environment, economy and social sustainability are still deficient. Although there are many promising innovations in this area, most of them are at the research stage. The benefits of bio-based plastics and better EoL options can be enjoyed only after increased production.
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12
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Preparation, characterization, and functionality of bio-based polyhydroxyalkanoate and renewable natural fiber with waste oyster shell composites. Polym Bull (Berl) 2021. [DOI: 10.1007/s00289-020-03341-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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13
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Effects of talc, kaolin and calcium carbonate as fillers in biopolymer packaging materials. JOURNAL OF POLYMER ENGINEERING 2021. [DOI: 10.1515/polyeng-2021-0076] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
We compared the performance of bio-based and biodegradable polymers for packaging applications. Cost-effective inorganic fillers (talc, kaolin and calcium carbonate) were first melt-compounded with polylactic acid (PLA), poly(butylene adipate-co-terephthalate) (PBAT) and poly(hydroxy butyrate-co-valerate) (PHBV). Following this, injection- and compression-molded specimens were produced to test the effect of filler loading (0–30 wt%) in relation to the morphological, thermal, mechanical and barrier properties of the composites. All the fillers were homogeneously dispersed in the polymer matrices and suitable polymer–filler adhesion was observed for talc and kaolin. The elastic modulus increased at the expense of a reduced tensile and elongation. The most significant improvements in water vapor and oxygen barrier properties were achieved with talc in PLA, PBAT and PHBV films. Overall, the results point to the promise of the introduced compositions for food packaging materials.
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14
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Transesterification catalyzed via ferric chloride for fabricating Poly(lactic acid)/Poly(butylene adipate-co-terephthalate) blends with ultra-fast degradation and high toughness. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.123927] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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15
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End-of-Life Options for (Bio)degradable Polymers in the Circular Economy. ADVANCES IN POLYMER TECHNOLOGY 2021. [DOI: 10.1155/2021/6695140] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
End-of-life options for plastics include recycling and energy recovery (incineration). Taking into account the polymeric waste, recycling is the intentional action that is aimed at reducing the amount of waste deposited in landfills by industrial use of this waste to obtain raw materials and energy. The incineration of waste leads to recovery of the energy only. Recycling methods divide on mechanical (reuse of waste as a full-valuable raw material for further processing), chemical (feedstock recycling), and organic (composting and anaerobic digestion). The type of recycling is selected in terms of the polymeric material, origin of the waste, possible toxicity of the waste, and its flammability. The (bio)degradable polymers show the suitability for every recycling methods. But recycling method should be used in such a form that it is economically justified in a given case. Organic recycling in a circular economy is considered to be the most appropriate technology for the disposal of compostable waste. It is addressed for plastics capable for industrial composting such as cellulose films, starch blends, and polyesters. The biological treatment of organic waste leads also to a decrease of landfills and thereby reducing methane emissions from them. If we add to their biodegradability the absence of toxicity, we have a biotechnological product of great industrial interest. The paper presents the overview on end-of-life options useful for the (bio)degradable polymers. The principles of the circular economy and its today development were also discussed.
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16
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Progress in Biodegradable Flame Retardant Nano-Biocomposites. Polymers (Basel) 2021; 13:polym13050741. [PMID: 33673607 PMCID: PMC7957674 DOI: 10.3390/polym13050741] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 02/22/2021] [Accepted: 02/24/2021] [Indexed: 11/17/2022] Open
Abstract
This paper summarizes the results obtained in the course of the development of a specific group of biocomposites with high functionality of flame retardancy, which are environmentally acceptable at the same time. Conventional biocomposites have to be altered through different modifications, to be able to respond to the stringent standards and environmental requests of the circular economy. The most commonly produced types of biocomposites are those composed of a biodegradable PLA matrix and plant bast fibres. Despite of numerous positive properties of natural fibres, flammability of plant fibres is one of the most pronounced drawbacks for their wider usage in biocomposites production. Most recent novelties regarding the flame retardancy of nanocomposites are presented, with the accent on the agents of nanosize (nanofillers), which have been chosen as they have low or non-toxic environmental impact, but still offer enhanced flame retardant (FR) properties. The importance of a nanofiller’s geometry and shape (e.g., nanodispersion of nanoclay) and increase in polymer viscosity, on flame retardancy has been stressed. Although metal oxydes are considered the most commonly used nanofillers there are numerous other possibilities presented within the paper. Combinations of clay based nanofillers with other nanosized or microsized FR agents can significantly improve the thermal stability and FR properties of nanocomposite materials. Further research is still needed on optimizing the parameters of FR compounds to meet numerous requirements, from the improvement of thermal and mechanical properties to the biodegradability of the composite products. Presented research initiatives provide genuine new opportunities for manufacturers, consumers and society as a whole to create a new class of bionanocomposite materials with added benefits of environmental improvement.
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17
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Jia H, Zhang M, Weng Y, Li C. Degradation of polylactic acid/polybutylene adipate-co-terephthalate by coculture of Pseudomonas mendocina and Actinomucor elegans. JOURNAL OF HAZARDOUS MATERIALS 2021; 403:123679. [PMID: 33264878 DOI: 10.1016/j.jhazmat.2020.123679] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 08/04/2020] [Accepted: 08/06/2020] [Indexed: 06/12/2023]
Abstract
A cocultivation of the Pseudomonas mendocina with Actinomucor elegans was developed and investigated to improve the biodegradation of polylactic acid/polybutylene adipate-co-terephthalate (PLA/PBAT). And the coculture system could produce an efficient PLA/PBAT-degrading enzymes system to degrade PLA/PBAT films. The results showed that the protease activity (11.50 U/mL) and lipase activity (40.46 U/mL) of the coculture exceeded that of the monoculture (P. mendocina of 7.31 U/mL, A. elegans of 32.47 U/mL). The degradation rate of PLA/PBAT films using the coculture system was 18.95 wt% within 5 days, which was considerably higher than that of P. mendocina (12.94 wt%) and A. elegans (9.27 wt%) individually, suggesting that P. mendocina and A. elegans had synergistic degradation. In addition, P. mendocina and A. elegans could secrete proteases and lipases, respectively, which could catalyze the ester bonds of PLA1 and PBAT in PLA/PBAT films, respectively, and hydrolyze them into different monomers and oligomers as nutrition sources. Therefore, the PLA/PBAT films could be completely degraded. In this study, the PLA/PBAT films were efficiently degraded in the coculture system for the first time, which significantly improved the biodegradation of PLA/PBAT films.
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Affiliation(s)
- Hao Jia
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an, PR China
| | - Min Zhang
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an, PR China.
| | - Yunxuan Weng
- Beijing Key Laboratory of Plastics Health and Safety Quality Evaluation Technology, Beijing Technology and Business University, Beijing, PR China
| | - Chengtao Li
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an, PR China
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18
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Xue Q, Wu Q, Yao Y, Li X, Sun J, Gu X, Song W, Yan F, Zhang S. A bio‐safe cyclophosphazene derivative flame retardant for
polylactic acid
composites: Flammability and cytotoxicity. POLYM ADVAN TECHNOL 2020. [DOI: 10.1002/pat.5092] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Qingxia Xue
- Shandong Engineering Laboratory of Marine Rehabilitation Drugs and Special New Materials, School of Pharmacy Weifang Medical University Weifang China
| | - Quan Wu
- Beijing Key Laboratory of Advanced Functional Polymer Composites Beijing University of Chemical Technology Beijing China
| | - Yuan Yao
- Beijing Key Laboratory of Advanced Functional Polymer Composites Beijing University of Chemical Technology Beijing China
| | - Xinjian Li
- Shandong Engineering Laboratory of Marine Rehabilitation Drugs and Special New Materials, School of Pharmacy Weifang Medical University Weifang China
| | - Jun Sun
- Beijing Key Laboratory of Advanced Functional Polymer Composites Beijing University of Chemical Technology Beijing China
| | - Xiaoyu Gu
- Beijing Key Laboratory of Advanced Functional Polymer Composites Beijing University of Chemical Technology Beijing China
| | - Weiguo Song
- Shandong Engineering Laboratory of Marine Rehabilitation Drugs and Special New Materials, School of Pharmacy Weifang Medical University Weifang China
- Doye Pharma Co., Ltd. Dongying China
| | - Fang Yan
- Shandong Engineering Laboratory of Marine Rehabilitation Drugs and Special New Materials, School of Pharmacy Weifang Medical University Weifang China
| | - Sheng Zhang
- Beijing Key Laboratory of Advanced Functional Polymer Composites Beijing University of Chemical Technology Beijing China
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19
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Musioł M, Jurczyk S, Sobota M, Klim M, Sikorska W, Zięba M, Janeczek H, Rydz J, Kurcok P, Johnston B, Radecka I. (Bio)Degradable Polymeric Materials for Sustainable Future-Part 3: Degradation Studies of the PHA/Wood Flour-Based Composites and Preliminary Tests of Antimicrobial Activity. MATERIALS 2020; 13:ma13092200. [PMID: 32403315 PMCID: PMC7254317 DOI: 10.3390/ma13092200] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 05/07/2020] [Accepted: 05/08/2020] [Indexed: 11/22/2022]
Abstract
The need for a cost reduction of the materials derived from (bio)degradable polymers forces research development into the formation of biocomposites with cheaper fillers. As additives can be made using the post-consumer wood, generated during wood products processing, re-use of recycled waste materials in the production of biocomposites can be an environmentally friendly way to minimalize and/or utilize the amount of the solid waste. Also, bioactive materials, which possess small amounts of antimicrobial additives belong to a very attractive packaging industry solution. This paper presents a study into the biodegradation, under laboratory composting conditions, of the composites that consist of poly[(R)-3-hydroxybutyrate-co-4-hydroxybutyrate)] and wood flour as a polymer matrix and natural filler, respectively. Thermogravimetric analysis, differential scanning calorimetry and scanning electron microscopy were used to evaluate the degradation progress of the obtained composites with different amounts of wood flour. The degradation products were characterized by multistage electrospray ionization mass spectrometry. Also, preliminary tests of the antimicrobial activity of selected materials with the addition of nisin were performed. The obtained results suggest that the different amount of filler has a significant influence on the degradation profile.
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Affiliation(s)
- Marta Musioł
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34. M. Curie-Sklodowska St., 41-819 Zabrze, Poland; (M.S.); (M.K.); (W.S.); (M.Z.); (H.J.); (J.R.); (P.K.)
- Correspondence: ; Tel.: +48-322-716-077
| | - Sebastian Jurczyk
- Łukasieiwcz Research Network – Institute for Engineering of Polymer Materials and Dyes, 55, M. Sklodowska-Curie St., 87-100 Toruń, Poland;
| | - Michał Sobota
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34. M. Curie-Sklodowska St., 41-819 Zabrze, Poland; (M.S.); (M.K.); (W.S.); (M.Z.); (H.J.); (J.R.); (P.K.)
| | - Magdalena Klim
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34. M. Curie-Sklodowska St., 41-819 Zabrze, Poland; (M.S.); (M.K.); (W.S.); (M.Z.); (H.J.); (J.R.); (P.K.)
- Department of Microbiology and Virology, School of Pharmacy with the Division of Laboratory Medicine, Medical University of Silesia, 4 Jagiellońska St., 41-200 Sosnowiec, Poland
| | - Wanda Sikorska
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34. M. Curie-Sklodowska St., 41-819 Zabrze, Poland; (M.S.); (M.K.); (W.S.); (M.Z.); (H.J.); (J.R.); (P.K.)
| | - Magdalena Zięba
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34. M. Curie-Sklodowska St., 41-819 Zabrze, Poland; (M.S.); (M.K.); (W.S.); (M.Z.); (H.J.); (J.R.); (P.K.)
| | - Henryk Janeczek
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34. M. Curie-Sklodowska St., 41-819 Zabrze, Poland; (M.S.); (M.K.); (W.S.); (M.Z.); (H.J.); (J.R.); (P.K.)
| | - Joanna Rydz
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34. M. Curie-Sklodowska St., 41-819 Zabrze, Poland; (M.S.); (M.K.); (W.S.); (M.Z.); (H.J.); (J.R.); (P.K.)
| | - Piotr Kurcok
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34. M. Curie-Sklodowska St., 41-819 Zabrze, Poland; (M.S.); (M.K.); (W.S.); (M.Z.); (H.J.); (J.R.); (P.K.)
| | - Brian Johnston
- Wolverhampton School of Sciences, Faculty of Science and Engineering, University of Wolverhampton, Wulfruna Street, Wolverhampton WV1 1LY, UK; (B.J.); (I.R.)
| | - Izabela Radecka
- Wolverhampton School of Sciences, Faculty of Science and Engineering, University of Wolverhampton, Wulfruna Street, Wolverhampton WV1 1LY, UK; (B.J.); (I.R.)
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20
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Soltani A, Noroozi R, Bodaghi M, Zolfagharian A, Hedayati R. 3D Printing On-Water Sports Boards with Bio-Inspired Core Designs. Polymers (Basel) 2020; 12:polym12010250. [PMID: 31968712 PMCID: PMC7023599 DOI: 10.3390/polym12010250] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Revised: 01/09/2020] [Accepted: 01/17/2020] [Indexed: 12/18/2022] Open
Abstract
Modeling and analyzing the sports equipment for injury prevention, reduction in cost, and performance enhancement have gained considerable attention in the sports engineering community. In this regard, the structure study of on-water sports board (surfboard, kiteboard, and skimboard) is vital due to its close relation with environmental and human health as well as performance and safety of the board. The aim of this paper is to advance the on-water sports board through various bio-inspired core structure designs such as honeycomb, spiderweb, pinecone, and carbon atom configuration fabricated by three-dimensional (3D) printing technology. Fused deposition modeling was employed to fabricate complex structures from polylactic acid (PLA) materials. A 3D-printed sample board with a uniform honeycomb structure was designed, 3D printed, and tested under three-point bending conditions. A geometrically linear analytical method was developed for the honeycomb core structure using the energy method and considering the equivalent section for honeycombs. A geometrically non-linear finite element method based on the ABAQUS software was also employed to simulate the boards with various core designs. Experiments were conducted to verify the analytical and numerical results. After validation, various patterns were simulated, and it was found that bio-inspired functionally graded honeycomb structure had the best bending performance. Due to the absence of similar designs and results in the literature, this paper is expected to advance the state of the art of on-water sports boards and provide designers with structures that could enhance the performance of sports equipment.
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Affiliation(s)
- Aref Soltani
- Department of Engineering, School of Science and Technology, Nottingham Trent University, Nottingham NG11 8NS, UK; (A.S.); (R.N.)
- Department of Mechanical Engineering, Isfahan University of Technology, Isfahan 8415683111, Iran
| | - Reza Noroozi
- Department of Engineering, School of Science and Technology, Nottingham Trent University, Nottingham NG11 8NS, UK; (A.S.); (R.N.)
- School of Mechanical Engineering, Faculty of Engineering, University of Tehran, Tehran 1417466191, Iran
| | - Mahdi Bodaghi
- Department of Engineering, School of Science and Technology, Nottingham Trent University, Nottingham NG11 8NS, UK; (A.S.); (R.N.)
- Correspondence: ; Tel.: +44-115-84-83470
| | - Ali Zolfagharian
- School of Engineering, Deakin University, Geelong, VIC 3216, Australia;
| | - Reza Hedayati
- Novel Aerospace Materials Group, Faculty of Aerospace Engineering, Delft University of Technology (TU Delft), Kluyverweg 1, 2629 HS Delft, The Netherlands;
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21
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Gigante V, Coltelli MB, Vannozzi A, Panariello L, Fusco A, Trombi L, Donnarumma G, Danti S, Lazzeri A. Flat Die Extruded Biocompatible Poly(Lactic Acid) (PLA)/Poly(Butylene Succinate) (PBS) Based Films. Polymers (Basel) 2019; 11:E1857. [PMID: 31717937 PMCID: PMC6918134 DOI: 10.3390/polym11111857] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 10/30/2019] [Accepted: 11/06/2019] [Indexed: 12/15/2022] Open
Abstract
Biodegradable polymers are promising materials for films and sheets used in many widely diffused applications like packaging, personal care products and sanitary products, where the synergy of high biocompatibility and reduced environmental impact can be particularly significant. Plasticized poly(lactic acid) (PLA)/poly(butylene succinate) (PBS) blend-based films, showing high cytocompatibility and improved flexibility than pure PLA, were prepared by laboratory extrusion and their processability was controlled by the use of a few percent of a commercial melt strength enhancer, based on acrylic copolymers and micro-calcium carbonate. The melt strength enhancer was also found effective in reducing the crystallinity of the films. The process was upscaled by producing flat die extruded films in which elongation at break and tear resistance were improved than pure PLA. The in vitro biocompatibility, investigated through the contact of flat die extruded films with cells, namely, keratinocytes and mesenchymal stromal cells, resulted improved with respect to low density polyethylene (LDPE). Moreover, the PLA-based materials were able to affect immunomodulatory behavior of cells and showed a slight indirect anti-microbial effect. These properties could be exploited in several applications, where the contact with skin and body is relevant.
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Affiliation(s)
- Vito Gigante
- Department of Civil and Industrial Engineering, University of Pisa, 56122 Pisa, Italy; (V.G.); (A.V.); (L.P.); (S.D.); (A.L.)
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), 50121 Florence, Italy; (A.F.); (L.T.); (G.D.)
| | - Maria-Beatrice Coltelli
- Department of Civil and Industrial Engineering, University of Pisa, 56122 Pisa, Italy; (V.G.); (A.V.); (L.P.); (S.D.); (A.L.)
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), 50121 Florence, Italy; (A.F.); (L.T.); (G.D.)
| | - Alessandro Vannozzi
- Department of Civil and Industrial Engineering, University of Pisa, 56122 Pisa, Italy; (V.G.); (A.V.); (L.P.); (S.D.); (A.L.)
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), 50121 Florence, Italy; (A.F.); (L.T.); (G.D.)
| | - Luca Panariello
- Department of Civil and Industrial Engineering, University of Pisa, 56122 Pisa, Italy; (V.G.); (A.V.); (L.P.); (S.D.); (A.L.)
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), 50121 Florence, Italy; (A.F.); (L.T.); (G.D.)
| | - Alessandra Fusco
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), 50121 Florence, Italy; (A.F.); (L.T.); (G.D.)
- Department of Experimental Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy
| | - Luisa Trombi
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), 50121 Florence, Italy; (A.F.); (L.T.); (G.D.)
- OTOLAB, Azienda Ospedaliero-Universitaria Pisana (AOUP), 56122 Pisa, Italy
| | - Giovanna Donnarumma
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), 50121 Florence, Italy; (A.F.); (L.T.); (G.D.)
- Department of Experimental Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy
| | - Serena Danti
- Department of Civil and Industrial Engineering, University of Pisa, 56122 Pisa, Italy; (V.G.); (A.V.); (L.P.); (S.D.); (A.L.)
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), 50121 Florence, Italy; (A.F.); (L.T.); (G.D.)
- OTOLAB, Azienda Ospedaliero-Universitaria Pisana (AOUP), 56122 Pisa, Italy
| | - Andrea Lazzeri
- Department of Civil and Industrial Engineering, University of Pisa, 56122 Pisa, Italy; (V.G.); (A.V.); (L.P.); (S.D.); (A.L.)
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), 50121 Florence, Italy; (A.F.); (L.T.); (G.D.)
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Rydz J, Sikorska W, Musioł M, Janeczek H, Włodarczyk J, Misiurska-Marczak M, Łęczycka J, Kowalczuk M. 3D-Printed Polyester-Based Prototypes for Cosmetic Applications-Future Directions at the Forensic Engineering of Advanced Polymeric Materials. MATERIALS (BASEL, SWITZERLAND) 2019; 12:E994. [PMID: 30917574 PMCID: PMC6470545 DOI: 10.3390/ma12060994] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 03/15/2019] [Accepted: 03/21/2019] [Indexed: 12/05/2022]
Abstract
Knowledge of degradation and impairment phenomena of (bio)degradable polymeric materials under operating conditions, and thus the selection of test procedures and prediction of their behavior designates the scope and capabilities as well as possible limitations of both: the preparation of the final product and its durability. The main novelty and objective of this research was to determine the degradation pathways during testing of polylactide and polylactide/polyhydroxyalkanoate materials made with three-dimensional printing and the development of a new strategy for the comprehensive characterization of such complex systems including behavior during waste disposal. Prototype objects were subjected to tests for damage evolution performed under simulating operating conditions. The reference samples and the tested items were characterized by gel permeation chromatography and differential scanning calorimetry to determine changes in material properties. The studies showed that: polyhydroxyalkanoate component during accelerated aging and degradation in environments rich in microorganisms accelerated the degradation of the material; paraffin accelerates polylactide degradation and slows degradation of polyhydroxyalkanoate-based material; under the influence of an environment rich in enzymes, paraffin contamination accelerates biodegradation; under the influence of natural conditions, paraffin contamination slowed degradation; the processing conditions, in particular the printing orientation of individual parts of the container, influenced the material properties in its various regions, affecting the rate of degradation of individual parts.
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Affiliation(s)
- Joanna Rydz
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34, M. Curie-Skłodowska St., 41-800 Zabrze, Poland.
| | - Wanda Sikorska
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34, M. Curie-Skłodowska St., 41-800 Zabrze, Poland.
| | - Marta Musioł
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34, M. Curie-Skłodowska St., 41-800 Zabrze, Poland.
| | - Henryk Janeczek
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34, M. Curie-Skłodowska St., 41-800 Zabrze, Poland.
| | - Jakub Włodarczyk
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34, M. Curie-Skłodowska St., 41-800 Zabrze, Poland.
| | - Marlena Misiurska-Marczak
- Laboratorium Kosmetyczne Dr Irena Eris Sp. z o.o., R&D Department, 12 Armii Krajowej St., 05-500 Piaseczno, Poland.
| | - Justyna Łęczycka
- Laboratorium Kosmetyczne Dr Irena Eris Sp. z o.o., R&D Department, 12 Armii Krajowej St., 05-500 Piaseczno, Poland.
| | - Marek Kowalczuk
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34, M. Curie-Skłodowska St., 41-800 Zabrze, Poland.
- Faculty of Science and Engineering, University of Wolverhampton, Wulfruna Street, Wolverhampton WV1 1SB, UK.
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(Bio)degradable Polymeric Materials for Sustainable Future-Part 2: Degradation Studies of P(3HB- co-4HB)/Cork Composites in Different Environments. Polymers (Basel) 2019; 11:polym11030547. [PMID: 30960531 PMCID: PMC6473375 DOI: 10.3390/polym11030547] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 03/18/2019] [Accepted: 03/18/2019] [Indexed: 11/18/2022] Open
Abstract
The degree of degradation of pure poly(3-hydroxybutyrate-co-4-hydroxybutyrate) [P(3HB-co-4HB)] and its composites with cork incubated under industrial and laboratory composting conditions was investigated. The materials were parallelly incubated in distilled water at 70 °C as a reference experiment (abiotic condition). It was demonstrated that addition of the cork into polyester strongly affects the matrix crystallinity. It influences the composite degradation independently on the degradation environment. Moreover, the addition of the cork increases the thermal stability of the obtained composites; this was related to a smaller reduction in molar mass during processing. This phenomenon also had an influence on the composite degradation process. The obtained results suggest that the addition of cork as a natural filler in various mass ratios to the composites enables products with different life expectancies to be obtained.
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Processability and Degradability of PHA-Based Composites in Terrestrial Environments. Int J Mol Sci 2019; 20:ijms20020284. [PMID: 30642041 PMCID: PMC6359651 DOI: 10.3390/ijms20020284] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 01/07/2019] [Accepted: 01/09/2019] [Indexed: 12/31/2022] Open
Abstract
In this work, composites based on poly(3-hydroxybutyrate-3-hydroxyvalerate) (PHB-HV) and waste wood sawdust (SD) fibers, a byproduct of the wood industry, were produced by melt extrusion and characterized in terms of processability, thermal stability, morphology, and mechanical properties in order to discriminate the formulations suitable for injection molding. Given their application in agriculture and/or plant nursery, the biodegradability of the optimized composites was investigated under controlled composting conditions in accordance with standard methods (ASTM D5338-98 and ISO 20200-2004). The optimized PHB-HV/SD composites were used for the production of pots by injection molding and their performance was qualitatively monitored in a plant nursery and underground for 14 months. This study presents a sustainable option of valuation of wood factory residues and lowering the production cost of PHB-HV-based compounds without affecting their mechanical properties, improving their impact resistance and biodegradability rates in terrestrial environments.
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Bulatović VO, Grgić DK, Slouf M, Ostafinska A, Dybal J, Jozinović A. Biodegradability of blends based on aliphatic polyester and thermoplastic starch. CHEMICAL PAPERS 2018. [DOI: 10.1007/s11696-018-0663-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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