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Yue H, Yan X, Huang C, Zhang H, Yang J, Fang L, Kim HS. Preparation of High-Performance Polyethylene Nanocomposites with Oleic Acid-Siloxene-Supported Ziegler-Natta Catalysts. Molecules 2024; 29:3662. [PMID: 39125068 PMCID: PMC11314101 DOI: 10.3390/molecules29153662] [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: 07/15/2024] [Revised: 07/28/2024] [Accepted: 07/30/2024] [Indexed: 08/12/2024] Open
Abstract
The addition of two-dimensional inorganic nanomaterials can effectively enhance the properties of polyethylene (PE). In the present study, a series of high-performance PE/oleic acid (OA)-siloxene nanocomposites were prepared by in situ polymerization using OA-siloxene-supported Ziegler-Natta catalysts. Compared with the conventional Ziegler-Natta catalyst, the polymerization activity of the OA-siloxene-supported Ziegler-Natta catalyst was enhanced to 100 kg/mol-Ti•h, an increase of 56%. The OA-siloxene fillers exhibited excellent dispersion within the PE matrix through the in situ polymerization technique. Compared to pure PE, PE/OA-siloxene nanocomposites containing 1.13 wt% content of OA-siloxene showed 68.3 °C, 126%, 37%, and 46% enhancements in Tdmax, breaking strength, modulus, and elongation at break, respectively.
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Affiliation(s)
- Huan Yue
- School of Chemical & Environmental Engineering, Pingdingshan University, Pingdingshan 467000, China
| | - Xin Yan
- School of Chemistry and Chemical Engineering, Anhui University of Technology, Ma’anshan 243032, China; (X.Y.); (C.H.); (H.Z.); (J.Y.)
| | - Chenghan Huang
- School of Chemistry and Chemical Engineering, Anhui University of Technology, Ma’anshan 243032, China; (X.Y.); (C.H.); (H.Z.); (J.Y.)
| | - Hexin Zhang
- School of Chemistry and Chemical Engineering, Anhui University of Technology, Ma’anshan 243032, China; (X.Y.); (C.H.); (H.Z.); (J.Y.)
| | - Jianming Yang
- School of Chemistry and Chemical Engineering, Anhui University of Technology, Ma’anshan 243032, China; (X.Y.); (C.H.); (H.Z.); (J.Y.)
| | - Liang Fang
- Key Laboratory of Rubber-Plastics, Qingdao University of Science & Technology, Qingdao 266061, China
| | - Hee-Seon Kim
- Corporation R&D Center, Intelligent Construction Automation System, 80 Daehak-ro, Buk-gu, Daegu 14566, Republic of Korea;
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Shan A, Idrees A, Zaman WQ, Mohsin A, Abbas Z, Stadler FJ, Lyu S. Synthesis of CaCO 3 supported nano zero-valent iron-nickel nanocomposite (nZVI-Ni@CaCO 3) and its application for trichloroethylene removal in persulfate activated system. ENVIRONMENTAL RESEARCH 2024; 245:118050. [PMID: 38163542 DOI: 10.1016/j.envres.2023.118050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 12/09/2023] [Accepted: 12/24/2023] [Indexed: 01/03/2024]
Abstract
Nano zero-valent (nZVI) based composite have been widely utilized in environmental remediation. However, the rapid agglomeration and quick deactivation of nZVI limited its application on large scale. In this work, CaCO3 supported nZVI-Ni catalyst, namely nZVI-Ni@CaCO3 was prepared and used for the efficient removal of trichloroethylene (TCE) in PS oxidation process. The successful disbursement of nZVI-Ni on CaCO3 support material not only increased the surface area of nZVI-Ni@CaCO3 (69.45 m2/g) with respect to CaCO3 (5.92 m2/g) and bare nZVI (13.29 m2/g) but also improved the catalytic activity. XRD, XPS and FTIR analysis confirmed the successful formation of nZVI-Ni@CaCO3 nanoparticles. The nZVI-Ni@CaCO3 nanoparticles combined with PS had achieved complete removal of TCE (99.8%) with dosage of 36 mg/L and 1.34 mM respectively. These results showed that the use of CaCO3 as support material for nZVI-Ni could have significant influence on contaminant removal process. Scavenging and EPR tests validated the existence of SO4•-, OH• and O2•- radicals in PS/nZVI-Ni@CaCO3 system and highlighted the dominant role of SO4•- radicals in TCE removal process. HCO3- ions and humic acid have shown adverse effect on TCE removal due to radical scavenging and buffering effect. Owing to improved catalytic activity and easy preparation, the nZVI-Ni@CaCO3 nanoparticles could be served as an alternative strategy for environmental remediation.
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Affiliation(s)
- Ali Shan
- College of Materials Science and Engineering, Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, Nanshan District Key Laboratory for Biopolymers and Safety Evaluation, Shenzhen University, Shenzhen, 518055, China; Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen ,518060, China
| | - Ayesha Idrees
- College of Materials Science and Engineering, Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, Nanshan District Key Laboratory for Biopolymers and Safety Evaluation, Shenzhen University, Shenzhen, 518055, China
| | - Waqas Qamar Zaman
- Institute of Environmental Sciences and Engineering, School of Civil and Environmental Engineering, National University of Sciences & Technology, Islamabad, 44000, Pakistan
| | - Ali Mohsin
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Zain Abbas
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, East China University of Science and Technology, Shanghai, 200237, China
| | - Florian J Stadler
- College of Materials Science and Engineering, Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, Nanshan District Key Laboratory for Biopolymers and Safety Evaluation, Shenzhen University, Shenzhen, 518055, China.
| | - Shuguang Lyu
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, East China University of Science and Technology, Shanghai, 200237, China
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López-Cano AA, Martínez-Aguilar V, Peña-Juárez MG, López-Esparza R, Delgado-Alvarado E, Gutiérrez-Castañeda EJ, Del Angel-Monroy M, Pérez E, Herrera-May AL, Gonzalez-Calderon JA. Chemically Modified Nanoparticles for Enhanced Antioxidant and Antimicrobial Properties with Cinnamon Essential Oil. Antioxidants (Basel) 2023; 12:2057. [PMID: 38136177 PMCID: PMC10740917 DOI: 10.3390/antiox12122057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 11/21/2023] [Accepted: 11/27/2023] [Indexed: 12/24/2023] Open
Abstract
We explored the potential of different nanoparticles (TiO2, CaCO3, and Al2O3), considering their pure form and modified with cinnamon essential oil (CEO). These materials were characterized using various techniques, including FTIR spectroscopy, XRD analysis, TGA, and SEM. The interaction between CEO and nanoparticles changed depending on the nanoparticle type. Al2O3 nanoparticles exhibited the strongest interaction with CEO, increasing their antioxidant capacity by around 40% and their transfer of antimicrobial properties, particularly against Gram-negative bacteria. In contrast, TiO2 and CaCO3 nanoparticles showed limited interaction with CEO, resulting in lower antioxidant capacity and antimicrobial activity. Incorporating pure and CEO-modified nanoparticles into polylactic acid (PLA) films improved their mechanical and thermal properties, which are suitable for applications requiring greater strength. This research highlights the potential of metal oxide nanoparticles to enhance the antimicrobial and antioxidant capabilities of polymers. In addition, incorporating cinnamon essential oil can increase the antioxidant and antimicrobial effectiveness of the metal oxide nanoparticles and improve the mechanical and thermal properties of PLA films. Thus, these PLA films exhibit favorable characteristics for active packaging applications.
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Affiliation(s)
- Aaron A. López-Cano
- Facultad de Ciencias, Universidad Autónoma de San Luis Potosí, San Luis Potosí 78290, San Luis Potosí, Mexico;
| | - Verónica Martínez-Aguilar
- Doctorado Institucional en Ingeniería y Ciencia de Materiales, Universidad Autónoma de San Luis Potosí, San Luis Potosí 78210, San Luis Potosí, Mexico;
| | - Mariana G. Peña-Juárez
- Departamento de Ciencias Básicas, Tecnológico Nacional de México, Instituto Tecnológico de Orizaba, Orizaba 94320, Veracruz, Mexico;
| | - Ricardo López-Esparza
- Departamento de Física, 1626, Universidad de Sonora, Hermosillo 83000, Sonora, Mexico;
| | - Enrique Delgado-Alvarado
- Micro and Nanotechnology Research Center, Universidad Veracruzana, Boca del Río 94294, Veracruz, Mexico;
| | - Emmanuel J. Gutiérrez-Castañeda
- Cátedras CONAHCYT-Instituto de Metalurgia, Universidad Autónoma de San Luis Potosí, San Luis Potosí 78210, San Luis Potosí, Mexico;
| | - Mayra Del Angel-Monroy
- Especialidad en Plásticos y Materiales Avanzados, CIATEQ A.C., San Luis Potosí 78395, San Luis Potosí, Mexico;
| | - Elías Pérez
- Instituto de Física, Universidad Autónoma de San Luis Potosí, San Luis Potosí 78000, San Luis Potosí, Mexico;
| | - Agustín L. Herrera-May
- Micro and Nanotechnology Research Center, Universidad Veracruzana, Boca del Río 94294, Veracruz, Mexico;
- Maestría en Ingeniería Aplicada, Facultad de Ingeniería de la Construcción y el Hábitat, Universidad Veracruzana, Boca del Río 94294, Veracruz, Mexico
| | - J. Amir Gonzalez-Calderon
- Cátedras CONAHCYT—Instituto de Física, Universidad Autónoma de San Luis Potosí, San Luis Potosí 78290, San Luis Potosí, Mexico
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Goli VSNS, Singh DN. Discussion on "Thermal and mechanical characterization of composite materials from industrial plastic wastes and recycled nylon fibers for floor paving tiles application" by Owen et al., Waste Management 166 (2023) 25-34. WASTE MANAGEMENT (NEW YORK, N.Y.) 2023; 169:286-288. [PMID: 37487341 DOI: 10.1016/j.wasman.2023.07.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 07/04/2023] [Accepted: 07/11/2023] [Indexed: 07/26/2023]
Affiliation(s)
| | - Devendra Narain Singh
- Department of Civil Engineering, Indian Institute of Technology Bombay, Mumbai 400 076, India.
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Sit M, Dashatan S, Zhang Z, Dhakal HN, Khalfallah M, Gamer N, Ling J. Inorganic Fillers and Their Effects on the Properties of Flax/PLA Composites after UV Degradation. Polymers (Basel) 2023; 15:3221. [PMID: 37571115 PMCID: PMC10422267 DOI: 10.3390/polym15153221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 07/19/2023] [Accepted: 07/24/2023] [Indexed: 08/13/2023] Open
Abstract
The present investigation seeks to assess the impact of fillers on the mechanical characteristics of entirely biodegradable composites, introducing an advanced solution to fulfil long-term durability demands within point-of-purchase (POP) industries. The inclusion of calcium carbonate (CaCO3) fillers on the various properties of the flax fibre-reinforced composites, after accelerated irradiation in an ultraviolet (UV) radiation exposure has been investigated in the present study. Different types of flax fibre-reinforced poly lactic acid (PLA) biocomposites (with and without filler) were fabricated. The mechanical (tensile and flexural), and physical properties of the specimens were assessed after 500 h of exposure to accelerated UV irradiation of 0.48 W/m2 at 50 °C and were compared with those of the unexposed specimens. The results indicate that the presence of the inorganic filler significantly improved the performance of the biocomposites compared to the unfilled biocomposites after UV exposure. After adding 20% of fillers, the tensile strength was increased by 2% after UV degradation, whereas the biocomposite without filler lost 18% of its strength after UV exposure. This can be attributed to the change in the photo-degradation of the PLA due to the presence of the CaCO3 filler, which acts as a safeguard against UV light penetration by creating a protective barrier. The scanning electron microscopy (SEM) images of the degraded specimen surface show substantial difference in the surface topography of the composites with and without fillers.
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Affiliation(s)
- Moumita Sit
- Advanced Polymers and Composites (APC) Research Group, School of Mechanical and Design Engineering, University of Portsmouth, Portsmouth PO1 3DJ, UK; (M.S.); (S.D.); (Z.Z.); (J.L.)
| | - Saeid Dashatan
- Advanced Polymers and Composites (APC) Research Group, School of Mechanical and Design Engineering, University of Portsmouth, Portsmouth PO1 3DJ, UK; (M.S.); (S.D.); (Z.Z.); (J.L.)
| | - Zhongyi Zhang
- Advanced Polymers and Composites (APC) Research Group, School of Mechanical and Design Engineering, University of Portsmouth, Portsmouth PO1 3DJ, UK; (M.S.); (S.D.); (Z.Z.); (J.L.)
| | - Hom Nath Dhakal
- Advanced Polymers and Composites (APC) Research Group, School of Mechanical and Design Engineering, University of Portsmouth, Portsmouth PO1 3DJ, UK; (M.S.); (S.D.); (Z.Z.); (J.L.)
| | - Moussa Khalfallah
- Kairos, 1 rue des Senneurs, ZI du Moros, 29900 Concarneau, France; (M.K.); (N.G.)
| | - Nicolas Gamer
- Kairos, 1 rue des Senneurs, ZI du Moros, 29900 Concarneau, France; (M.K.); (N.G.)
| | - Jarren Ling
- Advanced Polymers and Composites (APC) Research Group, School of Mechanical and Design Engineering, University of Portsmouth, Portsmouth PO1 3DJ, UK; (M.S.); (S.D.); (Z.Z.); (J.L.)
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Liu Z, Meng F, Tang X, Su C, Mu Q, Ju G. Research on Properties of PBAT/CaCO 3 Composite Films Modified with Titanate Coupling Agent. Polymers (Basel) 2023; 15:polym15102379. [PMID: 37242953 DOI: 10.3390/polym15102379] [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: 04/18/2023] [Revised: 05/11/2023] [Accepted: 05/18/2023] [Indexed: 05/28/2023] Open
Abstract
High cost, low crystallinity, and low-melt strength limit the market application of the biodegradable material poly (butylene adipate-co-terephthalate) (PBAT), which has become a major obstacle to the promotion of PBAT products. Herein, with PBAT as resin matrix and calcium carbonate (CaCO3) as filler, PBAT/CaCO3 composite films were designed and prepared with a twin-screw extruder and single-screw extrusion blow-molding machine designed, and the effects of particle size (1250 mesh, 2000 mesh), particle content (0-36%) and titanate coupling agent (TC) surface modification of CaCO3 on the properties of PBAT/CaCO3 composite film were investigated. The results showed that the size and content of CaCO3 particles had a significant effect on the tensile properties of the composites. The addition of unmodified CaCO3 decreased the tensile properties of the composites by more than 30%. TC-modified CaCO3 improved the overall performance of PBAT/CaCO3 composite films. The thermal analysis showed that the addition of titanate coupling agent 201 (TC-2) increased the decomposition temperature of CaCO3 from 533.9 °C to 566.1 °C, thereby enhancing the thermal stability of the material. Due to the heterogeneous nucleation of CaCO3, the addition of modified CaCO3 raised the crystallization temperature of the film from 97.51 °C to 99.67 °C and increased the degree of crystallization from 7.09% to 14.83%. The tensile property test results showed that the film reached the maximum tensile strength of 20.55 MPa with the addition of TC-2 at 1%. The results of contact angle, water absorption, and water vapor transmission performance tests showed that TC-2 modified CaCO3 increased the water contact angle of the composite film from 85.7° to 94.6° and decreased the water absorption from 13% to 1%. When the additional amount of TC-2 was 1%, the water vapor transmission rate of the composites was reduced by 27.99%, and the water vapor permeability coefficient was reduced by 43.19%.
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Affiliation(s)
- Zhekun Liu
- School of Materials Science and Engineering, Shandong University of Technology, Zibo 255000, China
| | - Fantao Meng
- School of Materials Science and Engineering, Shandong University of Technology, Zibo 255000, China
| | - Xianggang Tang
- School of Materials Science and Engineering, Shandong University of Technology, Zibo 255000, China
| | - Chengzhuang Su
- School of Materials Science and Engineering, Shandong University of Technology, Zibo 255000, China
| | - Qinglin Mu
- School of Materials Science and Engineering, Shandong University of Technology, Zibo 255000, China
| | - Guannan Ju
- School of Materials Science and Engineering, Shandong University of Technology, Zibo 255000, China
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Nasir NAM, Kamaruzzaman WMIWM, Badruddin MA, Mohd Ghazali MS. Surface modification effects of CaCO 3 and TiO 2 nanoparticles in nonpolar solvents. J DISPER SCI TECHNOL 2023. [DOI: 10.1080/01932691.2023.2186425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
Affiliation(s)
- Nursabrina Amirah Mohd Nasir
- Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, Terengganu, Malaysia
- Materials and Corrosion Research Group, Universiti Malaysia Terengganu, Terengganu, Malaysia
| | - Wan Mohamad Ikhmal Wan Mohamad Kamaruzzaman
- Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, Terengganu, Malaysia
- Materials and Corrosion Research Group, Universiti Malaysia Terengganu, Terengganu, Malaysia
| | - Malia Athirah Badruddin
- Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, Terengganu, Malaysia
| | - Mohd Sabri Mohd Ghazali
- Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, Terengganu, Malaysia
- Materials and Corrosion Research Group, Universiti Malaysia Terengganu, Terengganu, Malaysia
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Shang J, Li C, Song Y, Yan M, Li L, Hu C. Gas-solid fluidization modification of calcium carbonate for high-performance poly (butylene adipate-co-terephthalate) (PBAT) composites. Front Chem 2023; 10:1119978. [PMID: 36712983 PMCID: PMC9877299 DOI: 10.3389/fchem.2022.1119978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 12/28/2022] [Indexed: 01/13/2023] Open
Abstract
Modifying biodegradable poly (butylene adipate-co-terephthalate) (PBAT) plastic with inorganic fillers is critical for improving its overall performance, lowering the costs, and expanding its application scope. The chemical modification method for the inorganic filler determines the application performance of PBAT composites. In this work, gas-solid fluidization method was developed as a simple, efficient, and scalable strategy for chemically modifying CaCO3 filler. The modified CaCO3 filler was mixed with PBAT and melt extruded to prepare biodegradable PBAT/CaCO3 composites. The characterization results show that gas-solid fluidization method combines the traditional wet modification method's excellent modification effect with the scalability of the traditional dry modification method. The effects of modification methods and amount of CaCO3 filling on the crystallinity, mechanical, and rheological properties of PBAT/CaCO3 composites were compared. The results demonstrated that PBAT/CaCO3 composites containing 30% gas-solid fluidization modified CaCO3 could still maintain excellent overall performance. As a result, this work provides a simple, efficient, and scalable method for chemically modifying inorganic fillers and preparing biodegradable composites.
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Affiliation(s)
- Jinzhi Shang
- School of Chemical Engineering, Shenyang University of Chemical Technology, Shenyang, Liaoning, China,Nanjing IPE Institute of Green Manufacturing Industry, Nanjing, Jiangsu, China,State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China
| | - Chang Li
- Nanjing IPE Institute of Green Manufacturing Industry, Nanjing, Jiangsu, China
| | - Yang Song
- Nanjing IPE Institute of Green Manufacturing Industry, Nanjing, Jiangsu, China
| | - Mingkai Yan
- Nanjing IPE Institute of Green Manufacturing Industry, Nanjing, Jiangsu, China
| | - Lin Li
- Nanjing IPE Institute of Green Manufacturing Industry, Nanjing, Jiangsu, China
| | - Chaoquan Hu
- Nanjing IPE Institute of Green Manufacturing Industry, Nanjing, Jiangsu, China,State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China,*Correspondence: Chaoquan Hu,
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Han I, Rhee C, Kim D. Investigations on Potential Applications of CaMg(CO 3) 2 Nanoparticles. Molecules 2022; 28:molecules28010316. [PMID: 36615509 PMCID: PMC9823294 DOI: 10.3390/molecules28010316] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 12/16/2022] [Accepted: 12/26/2022] [Indexed: 01/04/2023] Open
Abstract
Calcium magnesium carbonate nanoparticles (CaMg(CO3)2 NPs), well-known as dolomite, are formed by the replacement of half of the calcite minerals of limestone. The dolomite (CaMg(CO3)2) nanoparticles are composed of calcite (CaCO3) and magnesium carbonate (MgCO3), both of which offer promising strategies for maintaining growth and development in mammals and agricultural plants. A grounded mixture of dolomite limestone was prepared via colloidal precipitates for the synthesis of CaMg(CO3)2 NPs, and their characteristics were examined using XRD, particle size analysis by DLS, and surface morphology by SEM and TEM. X-ray photoelectron spectroscopy was used to investigate the binding energy of each element of the dolomite NPs. Spectroscopy revealed that colloidal precipitation is the ideal method for producing NPs. We assessed the numerous beneficial impacts of CaMg(CO3)2 NPs in diverse sectors such as agriculture, cancer treatment, and microbiology in this study. Furthermore, an in vivo study was also carried out on chickens to observe the effects of CaMg(CO3)2 NPs. The obtained results showed that the treated group with CaMg(CO3)2 NPs maintained a more uniform calcium absorption rate than the control group did. The findings of this study suggest that CaMg(CO3)2 NPs operate as a stimulant for plants and as an inhibitory agent for bacteria and cancer cells.
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Affiliation(s)
- Ihn Han
- Plasma Bioscience Research Center, Kwangwoon University, Seoul 01897, Republic of Korea
- Department of Electrical and Biological Physics, Kwangwoon University, Seoul 01897, Republic of Korea
- Correspondence: (I.H.); (D.K.)
| | - Chulwoo Rhee
- Department of Earth and Environmental Sciences, Chungbuk National University, Seoul 28644, Republic of Korea
| | - Doyoung Kim
- Department of Electrical and Biological Physics, Kwangwoon University, Seoul 01897, Republic of Korea
- Correspondence: (I.H.); (D.K.)
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Cament A, Moreno‐Serna V, Loyo C, Quintana P, Seura P, Baier RV, Benavente R, Ulloa MT, Rivas LM, Pino E, Gómez T, Zapata PA. Mechanical and antimicrobial properties of low‐density‐polyethylene/
MgO
nanocomposites. POLYM ADVAN TECHNOL 2022. [DOI: 10.1002/pat.5865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Alejandro Cament
- Universidad de Santiago de Chile (USACH) Facultad de Química y Biología, Departamento de Ciencias del Ambiente, Grupo Polímeros Santiago Chile
| | - Viviana Moreno‐Serna
- Universidad de Santiago de Chile (USACH) Facultad de Química y Biología, Departamento de Ciencias del Ambiente, Grupo Polímeros Santiago Chile
| | - Carlos Loyo
- Universidad de Santiago de Chile (USACH) Facultad de Química y Biología, Departamento de Ciencias del Ambiente, Grupo Polímeros Santiago Chile
| | - Pabla Quintana
- Universidad de Santiago de Chile (USACH) Facultad de Química y Biología, Departamento de Ciencias del Ambiente, Grupo Polímeros Santiago Chile
| | - Pablo Seura
- Universidad de Santiago de Chile (USACH) Facultad de Química y Biología, Departamento de Ciencias del Ambiente, Grupo Polímeros Santiago Chile
| | - Raúl Vallejos Baier
- Universidad de Santiago de Chile (USACH) Facultad de Química y Biología, Departamento de Ciencias del Ambiente, Grupo Polímeros Santiago Chile
| | - Rosario Benavente
- Instituto de Ciencia y Tecnología de Polímeros ICTP‐CSIC Madrid Spain
| | - María Teresa Ulloa
- Genomics and Resistant Microbes (GeRM) Group Clínica Alemana, Universidad del Desarrollo Santiago Chile
| | - Lina María Rivas
- Programa de Microbiología y Micología ICBM‐Facultad de Medicina, Universidad de Chile Santiago Chile
| | - Eduardo Pino
- Universidad de Santiago de Chile (USACH), Facultad de Química y Biología Departamento de Ciencias del Ambiente Santiago Chile
| | - Tatiana Gómez
- Theoretical and Computational Chemistry Center, Institute of Applied Chemical Sciences, Facultad of Engineering Universidad Autónoma de Chile Santiago Chile
| | - Paula A. Zapata
- Universidad de Santiago de Chile (USACH) Facultad de Química y Biología, Departamento de Ciencias del Ambiente, Grupo Polímeros Santiago Chile
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Three Keggin POMs-based coordination polymers constructed by linear N-heterocyclic ligand for proton conduction, photocatalytic activity and magnetic property. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2022.123167] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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12
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Properties and Degradability of Poly(Butylene Adipate-Co-Terephthalate)/Calcium Carbonate Films Modified by Polyethylene Glycol. Polymers (Basel) 2022; 14:polym14030484. [PMID: 35160473 PMCID: PMC8838338 DOI: 10.3390/polym14030484] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Revised: 01/22/2022] [Accepted: 01/24/2022] [Indexed: 12/18/2022] Open
Abstract
Poly(butylene adipate-co-terephthalate) (PBAT) is a biodegradable polymer synthesized from petrochemical resources. PBAT has an exceptionally high elongation at break values which makes it one of the most promising substitutes for LDPE packaging films. However, the applicability of PBAT films is still limited by low strength and high production costs. In this work, we used polyethylene glycol 600 (PEG-600) as a coating agent to modify the surface of calcium carbonate and improve compatibility with the polymer matrix. A series of PBAT/CaCO3 composite films having different CaCO3 particle size and content of coating agent was prepared using extrusion blow molding. The effect of particle size of CaCO3 filler and the content of a coating agent on the mechanical and rheological properties of composite films have been studied. The biodegradation properties have been tested by burying the samples in soil or keeping them in artificial seawater for 90 days. It was shown that the addition of PEG-600 improves compatibility between the matrix and CaCO3 filler as polar –OH groups of PEG have a high affinity toward the polar surface of CaCO3. Moreover, the hydrophilicity of PEG-600 increased the diffusivity of water molecules and facilitated PBAT degradation. This work provides experimental data and theoretical guidance that support the development of high-performance PBAT/calcium carbonate films for the single use packaging industry.
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The Accelerated Aging Impact on Mechanical and Thermal Properties of Polypropylene Composites with Sedimentary Rock Opoka-Hybrid Natural Filler. MATERIALS 2022; 15:ma15010338. [PMID: 35009483 PMCID: PMC8745994 DOI: 10.3390/ma15010338] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 12/27/2021] [Accepted: 12/30/2021] [Indexed: 12/04/2022]
Abstract
This paper presents the impact of accelerated aging on selected mechanical and thermal properties of isotactic polypropylene (iPP) composites filled with sedimentary hybrid natural filler-Opoka rock. The filler was used in two forms: an industrial raw material originating as a subsieve fraction natural material, and a rock calcinated at 1000 °C for production of phosphorous sorbents. Fillers were incorporated with constant amount of 5 wt % of the resulting composite, and the material was subjected to accelerated weathering tests with different exposition times. The neat polypropylene and composites with calcium carbonate as a reference filler material were used for comparison. The aim of the research was to determine the possibility of using the Opoka rock as a new hybrid filler for polypropylene, which could be an alternative to the widely used calcium carbonate and silica. The thermal, mechanical, and structural properties were evaluated by means of differential scanning calorimetry (DSC), tensile tests, scanning electron microscopy (SEM), and Fourier-transform infrared spectroscopy with attenuated total reflectance (FTIR/ATR) prior to and after accelerated aging. As a result, it was found that the composites of polypropylene with Opoka were characterized by similar or higher functional properties and higher resistance to photodegradation compared to composites with conventional calcium carbonate. The results of measurements of mechanical properties, structural and surface changes, and the carbonyl index as a function of accelerated aging proved that Opoka was an effective ultraviolet (UV) stabilizer, significantly exceeding the reference calcium carbonate in this respect. The new hybrid filler of natural origin in the form of Opoka can therefore be used not only as a typical powder filler, but above all as a UV blocker/stabilizer, thus extending the life of polypropylene composites, especially for outdoor applications.
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Improved properties of poly(butylene adipate‐co‐terephthalate)/calcium carbonate films through silane modification. J Appl Polym Sci 2021. [DOI: 10.1002/app.50970] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Abstract
In the present study, the valorization potential of marble waste in the presence of metakaolin via alkali activation was explored. The activating solution used consisted of NaOH and sodium silicate solutions. The effects of marble waste to metakaolin ratio, particle size of raw materials, curing temperature, and Na2O/SiO2 and H2O/Na2O molar ratios present in the activating solution on the main properties and the morphology of the produced alkali-activated materials (AAMs) was evaluated. The durability and structural integrity of the AAMs after firing at temperatures between 200 and 600 °C, immersion in deionized water and 1 mol/L NaCl solution for different time periods and subjection to freeze–thaw cycles were also investigated. Characterization techniques including Fourier transform infrared spectroscopy, X-ray diffraction, mercury intrusion porosimetry and scanning electron microscopy were used in order to study the structure of the produced AAMs. Τhe highest compressive strength (~36 MPa) was achieved by the AAMs prepared with marble waste to metakaolin mass ratio of 0.3 after curing at 40 °C. The results indicated that the utilization of marble waste in the presence of metakaolin enables the production of AAMs with good physical (porosity, density and water absorption) and mechanical properties, thus contributing to the valorization of this waste type and the reduction of the environmental footprint of the marble industry.
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Silva C, Bobillier F, Canales D, Antonella Sepúlveda F, Cament A, Amigo N, Rivas LM, Ulloa MT, Reyes P, Ortiz JA, Gómez T, Loyo C, Zapata PA. Mechanical and Antimicrobial Polyethylene Composites with CaO Nanoparticles. Polymers (Basel) 2020; 12:polym12092132. [PMID: 32961957 PMCID: PMC7570308 DOI: 10.3390/polym12092132] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 09/09/2020] [Accepted: 09/15/2020] [Indexed: 12/30/2022] Open
Abstract
Low-density polyethylene composites containing different sizes of calcium oxide (CaO) nanoparticles were obtained by melt mixing. The CaO nanoparticles were synthesized by either the sol-gel or sonication methods, obtaining two different sizes: ca. 55 nm and 25 nm. These nanoparticles were used either as-synthesized or were modified organically on the surface with oleic acid (Mod-CaO), at concentrations of 3, 5, and 10 wt% in the polymer. The Mod-CaO nanoparticles of 25 nm can act as nucleating agents, increasing the polymer’s crystallinity. The Young’s Modulus increased with the Mod-CaO nanoparticles, rendering higher reinforcement effects with an increase as high as 36%. The reduction in Escherichia coli bacteria in the nanocomposites increased with the amount of CaO nanoparticles, the size reduction, and the surface modification. The highest antimicrobial behavior was found in the composites with a Mod-CaO of 25 nm, presenting a reduction of 99.99%. This strong antimicrobial effect can be associated with the release of the Ca2+ from the composites, as studied for the composite with 10 wt% nanoparticles. The ion release was dependent on the size of the nanoparticles and their surface modification. These findings show that CaO nanoparticles are an excellent alternative as an antimicrobial filler in polymer nanocomposites to be applied for food packaging or medical devices.
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Affiliation(s)
- Cristián Silva
- Grupo Polímeros, Facultad de Química y Biología, Universidad de Santiago de Chile USACH, Casilla 40, Correo 33, Santiago 8320096, Chile; (C.S.); (F.B.); (D.C.); (F.A.S.); (A.C.); (N.A.); (J.A.O.); (C.L.)
| | - Felipe Bobillier
- Grupo Polímeros, Facultad de Química y Biología, Universidad de Santiago de Chile USACH, Casilla 40, Correo 33, Santiago 8320096, Chile; (C.S.); (F.B.); (D.C.); (F.A.S.); (A.C.); (N.A.); (J.A.O.); (C.L.)
| | - Daniel Canales
- Grupo Polímeros, Facultad de Química y Biología, Universidad de Santiago de Chile USACH, Casilla 40, Correo 33, Santiago 8320096, Chile; (C.S.); (F.B.); (D.C.); (F.A.S.); (A.C.); (N.A.); (J.A.O.); (C.L.)
| | - Francesca Antonella Sepúlveda
- Grupo Polímeros, Facultad de Química y Biología, Universidad de Santiago de Chile USACH, Casilla 40, Correo 33, Santiago 8320096, Chile; (C.S.); (F.B.); (D.C.); (F.A.S.); (A.C.); (N.A.); (J.A.O.); (C.L.)
| | - Alejandro Cament
- Grupo Polímeros, Facultad de Química y Biología, Universidad de Santiago de Chile USACH, Casilla 40, Correo 33, Santiago 8320096, Chile; (C.S.); (F.B.); (D.C.); (F.A.S.); (A.C.); (N.A.); (J.A.O.); (C.L.)
| | - Nicolás Amigo
- Grupo Polímeros, Facultad de Química y Biología, Universidad de Santiago de Chile USACH, Casilla 40, Correo 33, Santiago 8320096, Chile; (C.S.); (F.B.); (D.C.); (F.A.S.); (A.C.); (N.A.); (J.A.O.); (C.L.)
| | - Lina M. Rivas
- Genomics and Resistant Microbes (GeRM) Group, Clínica Alemana, Universidad del Desarrollo, Santiago 8320000, Chile;
| | - María T. Ulloa
- Programa de Microbiología y Micología, ICBM-Facultad de Medicina Universidad de Chile, dirección, Avenida Independencia 1027, Comuna Independencia, Santiago 8320000, Chile;
| | - Pablo Reyes
- Centro de Excelencia en Nanotecnología (CEN) Chile, Av. Mariano Sánchez Fontecilla 310, 701-D, Las Condes, Santiago 8320000, Chile;
- Fundación Leitat Chile, Av. Mariano Sánchez Fontecilla 310, 701-D, Las Condes, Santiago 8320000, Chile
| | - J. Andrés Ortiz
- Grupo Polímeros, Facultad de Química y Biología, Universidad de Santiago de Chile USACH, Casilla 40, Correo 33, Santiago 8320096, Chile; (C.S.); (F.B.); (D.C.); (F.A.S.); (A.C.); (N.A.); (J.A.O.); (C.L.)
- Departamento de Ingeniería Química, Biotecnología y Materiales, Facultad de Ciencias Físicas y Matemáticas, Universidad de Chile, Avenida Beaucheff 851, Santiago 8320000, Chile
| | - Tatiana Gómez
- Theoretical and Computational Chemistry Center, Institute of Applied Chemical Sciences, Faculty of Engineering, Universidad Autónoma de Chile, Avenida Pedro de Valdivia 425, Santiago 8320000, Chile;
| | - Carlos Loyo
- Grupo Polímeros, Facultad de Química y Biología, Universidad de Santiago de Chile USACH, Casilla 40, Correo 33, Santiago 8320096, Chile; (C.S.); (F.B.); (D.C.); (F.A.S.); (A.C.); (N.A.); (J.A.O.); (C.L.)
| | - Paula A. Zapata
- Grupo Polímeros, Facultad de Química y Biología, Universidad de Santiago de Chile USACH, Casilla 40, Correo 33, Santiago 8320096, Chile; (C.S.); (F.B.); (D.C.); (F.A.S.); (A.C.); (N.A.); (J.A.O.); (C.L.)
- Correspondence:
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Nano‐CaCO
3
‐embodied polyacrylicacid/dextran nanocomposites for packaging applications. J Appl Polym Sci 2020. [DOI: 10.1002/app.48298] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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18
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Zhang X, Shi D, Li X, Zhang Y, Wang J, Fan J. Nanoscale dispersing of zero-valent iron on CaCO 3 and their significant synergistic effect in high performance removal of lead. CHEMOSPHERE 2019; 224:390-397. [PMID: 30831489 DOI: 10.1016/j.chemosphere.2019.02.139] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2018] [Revised: 01/14/2019] [Accepted: 02/22/2019] [Indexed: 06/09/2023]
Abstract
Rapid aggregation and deactivation of nanoscale zero-valent iron (nZVI) hinder its application in environmental remediation. In this work, micro-scale CaCO3 is used as a dispersive carrier of nZVI to create a novel composite, CaCO3-supported nZVI (nZVI@CaCO3), through simplified liquid-phase reduction strategy. The morphology analysis shows that CaCO3 exhibits a fagot-like structure, and Fe0 particles are well dispersed on CaCO3 with an average diameter of around 15 nm. The removal of Pb(II) from water by nZVI@CaCO3 is studied, and it is found that the removal capacity of lead is as high as 3828 mg/g, which is much greater than that by neat CaCO3 (2209 mg/g) and bare nZVI (1308 mg/g). Owing to the loading of Fe (50%) in nZVI@CaCO3, a significant synergistic effect is observed between CaCO3 and nZVI in high performance removal of lead. Furthermore, a possible removal mechanism is proposed from a comparative investigation on the surface valence state and nZVI@CaCO3 phase before and after absorption of Pb(II). Considering the advantages of improved dispersibility, easy preparation and remarkable performance, the as-prepared nZVI@CaCO3 has the potential to become a promising remediation material for Pb(II) polluted water.
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Affiliation(s)
- Xiaodi Zhang
- School of Environment, Henan Key Laboratory for Environmental Pollution Control, Key Laboratory for Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Normal University, Xinxiang, Henan, 453007, PR China
| | - Dongyang Shi
- School of Environment, Henan Key Laboratory for Environmental Pollution Control, Key Laboratory for Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Normal University, Xinxiang, Henan, 453007, PR China
| | - Xiang Li
- School of Environment, Henan Key Laboratory for Environmental Pollution Control, Key Laboratory for Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Normal University, Xinxiang, Henan, 453007, PR China
| | - Yajing Zhang
- School of Environment, Henan Key Laboratory for Environmental Pollution Control, Key Laboratory for Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Normal University, Xinxiang, Henan, 453007, PR China
| | - Jianji Wang
- Henan Key Laboratory of Green Chemistry, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan, 453007, PR China
| | - Jing Fan
- School of Environment, Henan Key Laboratory for Environmental Pollution Control, Key Laboratory for Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Normal University, Xinxiang, Henan, 453007, PR China.
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Chang BP, Mohanty AK, Misra M. Sustainable biocarbon as an alternative of traditional fillers for poly(butylene terephthalate)‐based composites: Thermo‐oxidative aging and durability. J Appl Polym Sci 2019. [DOI: 10.1002/app.47722] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Boon Peng Chang
- Bioproducts Discovery and Development Centre, Department of Plant Agriculture, Crop Science BuildingUniversity of Guelph, 50 Stone Road East Guelph Ontario N1G 2W1 Canada
| | - Amar Kumar Mohanty
- Bioproducts Discovery and Development Centre, Department of Plant Agriculture, Crop Science BuildingUniversity of Guelph, 50 Stone Road East Guelph Ontario N1G 2W1 Canada
- School of Engineering, Thornbrough BuildingUniversity of Guelph, 50 Stone Road East Guelph Ontario N1G 2W1 Canada
| | - Manjusri Misra
- Bioproducts Discovery and Development Centre, Department of Plant Agriculture, Crop Science BuildingUniversity of Guelph, 50 Stone Road East Guelph Ontario N1G 2W1 Canada
- School of Engineering, Thornbrough BuildingUniversity of Guelph, 50 Stone Road East Guelph Ontario N1G 2W1 Canada
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