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Merlini C, Oliveira Castro V, Perli G, El Omari Y, Livi S. Epoxidized Ionic Liquids as Processing Auxiliaries of Poly(Lactic Acid) Matrix: Influence on the Manufacture, Structural and Physical Properties. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:nano13091476. [PMID: 37177021 PMCID: PMC10180299 DOI: 10.3390/nano13091476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Revised: 04/14/2023] [Accepted: 04/24/2023] [Indexed: 05/15/2023]
Abstract
In this study, we set out to modify poly(lactic acid) (PLA) by incorporating epoxidized ionic liquids (ILs) that were specifically designed with imidazolium-NTf2 moieties. First, we synthesized di-, tri- and tetra-epoxidized ILs, which were incorporated into a PLA matrix at 3, 5, and 10 wt% through a melt extrusion process. We investigated the relationship between the structure and properties of the resulting materials in terms of thermal, mechanical, rheological, and surface properties. The results showed the potential of ILs to impact these properties. Notably, the tri- and tetra-epoxidized ILs enhanced the thermal stability of the PLA matrix as well as the crystallinity while reducing the glass transition temperature and melting point, which is promising for reactive extrusion processing. Overall, this research opens new routes for using reactive ILs to improve the processing and properties of PLA polymers.
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Affiliation(s)
- Claudia Merlini
- Materials Engineering Special Coordination, Federal University of Santa Catarina (UFSC), Blumenau 89036-002, SC, Brazil
- Université de Lyon, CNRS, Université Claude Bernard Lyon 1, INSA Lyon, Université Jean Monnet, UMR 5223, Ingénierie des Matériaux Polymères, CEDEX F-69621 Villeurbanne, France
| | - Vanessa Oliveira Castro
- Université de Lyon, CNRS, Université Claude Bernard Lyon 1, INSA Lyon, Université Jean Monnet, UMR 5223, Ingénierie des Matériaux Polymères, CEDEX F-69621 Villeurbanne, France
- Mechanical Engineering Department, Federal University of Santa Catarina, Florianopolis 88040-900, SC, Brazil
| | - Gabriel Perli
- Université de Lyon, CNRS, Université Claude Bernard Lyon 1, INSA Lyon, Université Jean Monnet, UMR 5223, Ingénierie des Matériaux Polymères, CEDEX F-69621 Villeurbanne, France
| | - Younes El Omari
- Université de Lyon, CNRS, Université Claude Bernard Lyon 1, INSA Lyon, Université Jean Monnet, UMR 5223, Ingénierie des Matériaux Polymères, CEDEX F-69621 Villeurbanne, France
| | - Sébastien Livi
- Université de Lyon, CNRS, Université Claude Bernard Lyon 1, INSA Lyon, Université Jean Monnet, UMR 5223, Ingénierie des Matériaux Polymères, CEDEX F-69621 Villeurbanne, France
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2
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Legett SA, Stockdale JR, Torres X, Yeager CM, Pacheco A, Labouriau A. Functional Filaments: Creating and Degrading pH-Indicating PLA Filaments for 3D Printing. Polymers (Basel) 2023; 15:polym15020436. [PMID: 36679315 PMCID: PMC9866878 DOI: 10.3390/polym15020436] [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: 12/16/2022] [Revised: 01/06/2023] [Accepted: 01/10/2023] [Indexed: 01/19/2023] Open
Abstract
With the rapid pace of advancements in additive manufacturing and techniques such as fused filament fabrication (FFF), the feedstocks used in these techniques should advance as well. While available filaments can be used to print highly customizable parts, the creation of the end part is often the only function of a given feedstock. In this study, novel FFF filaments with inherent environmental sensing functionalities were created by melt-blending poly(lactic acid) (PLA), poly(ethylene glycol) (PEG), and pH indicator powders (bromothymol blue, phenolphthalein, and thymol blue). The new PLA-PEG-indicator filaments were universally more crystalline than the PLA-only filaments (33-41% vs. 19% crystallinity), but changes in thermal stability and mechanical characteristics depended upon the indicator used; filaments containing bromothymol blue and thymol blue were more thermally stable, had higher tensile strength, and were less ductile than PLA-only filaments, while filaments containing phenolphthalein were less thermally stable, had lower tensile strength, and were more ductile. When the indicator-filled filaments were exposed to acidic, neutral, and basic solutions, all filaments functioned as effective pH sensors, though the bromothymol blue-containing filament was only successful as a base indicator. The biodegradability of the new filaments was evaluated by characterizing filament samples after aging in soil and soil slurry mixtures; the amount of physical deterioration and changes in filament crystallinity suggested that the bromothymol blue filament degraded faster than PLA-only filaments, while the phenolphthalein and thymol blue filaments saw decreases in degradation rates.
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3
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Muhammad Ghozali, Triwulandari E, Restu WK, Meliana Y, Haryono A. Synthesis of Polyethylene Glycol-9,10-dihydroxy Monostearate as Palm Oil-Based Polyol and Its Application on the Preparation of Polylactic acid/Polyurethane Block Copolymer. POLYMER SCIENCE SERIES A 2022. [DOI: 10.1134/s0965545x23700621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
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4
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Sirisinha K, Wirasate S, Sirisinha C, Wattanakrai N. One-Pot Reactive Melt Recycling of PLA Post-Consumer Waste for the Production of Block Copolymer Nanocomposites of High Strength and Ductility. Polymers (Basel) 2022; 14:polym14173642. [PMID: 36080715 PMCID: PMC9459722 DOI: 10.3390/polym14173642] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 08/26/2022] [Accepted: 08/30/2022] [Indexed: 12/23/2022] Open
Abstract
Post-consumer waste recycling is a crucial issue for building a sustainable society. However, mechanical recycling of poly(lactic acid) (PLA) often reduces the performance of the recycled material because PLA has a strong tendency to degrade during reprocessing. Therefore, it is of great interest to develop an effective recycling method to improve the mechanical performance of this material. This paper presents a one-pot melt process for turning PLA waste into a biodegradable block copolymer and its high strength and ductility composite. The process was conducted in a melt-mixer through a transesterification of PLA with poly(ethylene glycol) (PEG) or poly(propylene glycol) (PPG) as a soft component and clay as reinforcement. Effects of soft component content and sequence of clay addition on the mechanical performance of the prepared materials were focused. The results showed the successful preparation of PLA-based multiblock copolymers of high molecular weights (~100 kDa). Both virgin PLA and recycled source could serve as the starting material. PEG was more efficient than PPG in providing an intense improvement of PLA ductility. The nanocomposite of intercalated structure yielded nearly 100 times higher elongation at break (Eb = 506%) than the starting PLA (Eb = 5.6%) with high strength of 39.5 MPa and modulus of 1.4 GPa, considering the advantages of clay addition. Furthermore, the products with a broadened range of properties can be designed based on the ratio of PLA and soft component, as well as the organization and spatial distribution of clay in the copolymer matrices.
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Affiliation(s)
- Kalyanee Sirisinha
- Department of Chemistry, Faculty of Science, Mahidol University, Bangkok 10400, Thailand
- Correspondence:
| | - Supa Wirasate
- Department of Chemistry, Faculty of Science, Mahidol University, Bangkok 10400, Thailand
| | - Chakrit Sirisinha
- Rubber Technology Research Centre (RTEC), Faculty of Science, Mahidol University, Nakhon Prathom 73170, Thailand
| | - Noppasorn Wattanakrai
- Department of Chemistry, Faculty of Science, Mahidol University, Bangkok 10400, Thailand
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Ibrahim E, Ahmed S, Abir SSH, Taylor K, Padilla-Gainza VM, Lozano K. Centrifugally spun alginate-poly(lactic acid) microbeads: A promising carrier for drug delivery and tissue engineering. Int J Biol Macromol 2022; 220:671-682. [PMID: 35988730 DOI: 10.1016/j.ijbiomac.2022.08.097] [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: 06/05/2022] [Revised: 08/12/2022] [Accepted: 08/13/2022] [Indexed: 11/05/2022]
Abstract
A facile and high yield centrifugal spinning technique known as Forcespinning® (FS) was used to develop unique microstructures consisting of PLA microbeads along alginate fibers. Morphological variation and structural features appeared in the field-emission scanning electron micrographs for the PLA-alginate composites and dried PLA-alginate films from precursor emulsions at constant PLA and varied alginate contents. Shrunk and deflated microbeads were observed for composites whilst spherical beads were evident for the PLA control. Furthermore, PLA was found surrounding the alginate when the alginate was present at 0.24 wt% or lower, while alginate (mushroom-like structures), were seen protruding through the PLA layer at ≥0.34 wt% alginate. Rheological characterization of the composite emulsions revealed that the filler (alginate) provided shear thinning properties including pseudoplasticity, desirable for printing and other related applications in contrast to the Newtonian flow shown by the PLA control. Along with infra-red spectroscopy, the nanocomposites were further characterized using thermal gravimetry and differential scanning calorimetry featuring reversible events influenced by heat capacity and irreversible kinetic/thermodynamic counterparts. The work provides a comprehensive investigation of biocompatible networks of PLA-alginate microbeads embedded in nano-sized fibers and the prospective application of these microbeads as a drug delivery system.
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Affiliation(s)
- Eman Ibrahim
- Department of Mechanical Engineering, University of Texas Rio Grande Valley, Edinburg, TX 78539, USA.
| | - Salahuddin Ahmed
- Department of Mechanical Engineering, University of Texas Rio Grande Valley, Edinburg, TX 78539, USA
| | - Sk Shamim Hasan Abir
- Department of Mechanical Engineering, University of Texas Rio Grande Valley, Edinburg, TX 78539, USA
| | - Keith Taylor
- Department of Chemistry and Biochemistry, University of Windsor, Windsor, Ontario N9B 3P4, Canada
| | - Victoria M Padilla-Gainza
- Department of Mechanical Engineering, University of Texas Rio Grande Valley, Edinburg, TX 78539, USA
| | - Karen Lozano
- Department of Mechanical Engineering, University of Texas Rio Grande Valley, Edinburg, TX 78539, USA
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Characterization of Optimized Ternary PLA/PHB/Organoclay Composites Processed through Fused Filament Fabrication and Injection Molding. MATERIALS 2022; 15:ma15093398. [PMID: 35591733 PMCID: PMC9104074 DOI: 10.3390/ma15093398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 05/02/2022] [Accepted: 05/04/2022] [Indexed: 11/16/2022]
Abstract
The aim of this study was to investigate the structure-properties relationship of ternary blends of polylactide/polyhydroxybutyrate (PLA/PHB)/organo-modified layered silicate (OMLS). Morphological, thermal, rheological, and mechanical characterizations were performed to understand the influence of OMLS on PLA/PHB (70/30 wt%) formulations optimized through modifications with an epoxy-based chain extender, the use of a plasticizer, as well as the influence of the type of processing route: injection molding or fused filament fabrication. The addition of OMLS allowed the blend compatibility to be improved, with the appearance of a single melting peak on DSC thermograms at 146 °C, as well as the reduction in the size of the nodules for the injected molded specimens. Concerning the printed samples, AFM analysis revealed a coalescence of the PHB minor phase due to its degradation. This phenomenon was dramatically enhanced in the presence of OMLS and has been ascribed to the degradation of both the organo-modifier and the PHB minor phase in the blend. Rheological and mechanical tests (17% decrease in Young's modulus and 13% decrease in elongation at break) confirmed this degradation that would have occurred during the manufacturing of the filaments and the printing of specimens due to additional thermal and cooling steps.
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7
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Omar A, Chen RS, Shahdan D, Ahmad S. Thermal, water absorption, and mechanical characterizations of polylactide based nanocomposites: Comparison between sodium and modified montmorillonite as reinforcement materials. J Appl Polym Sci 2022. [DOI: 10.1002/app.51836] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Afiqah Omar
- Department of Applied Physics, Faculty of Science and Technology Universiti Kebangsaan Malaysia Bangi Malaysia
- Vehicle Safety and Biomechanics Research Centre Malaysian Institute of Road Safety Research Kajang Malaysia
| | - Ruey Shan Chen
- Department of Applied Physics, Faculty of Science and Technology Universiti Kebangsaan Malaysia Bangi Malaysia
| | - Dalila Shahdan
- Department of Applied Physics, Faculty of Science and Technology Universiti Kebangsaan Malaysia Bangi Malaysia
| | - Sahrim Ahmad
- Department of Applied Physics, Faculty of Science and Technology Universiti Kebangsaan Malaysia Bangi Malaysia
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8
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Sepúlveda FA, Rivera F, Loyo C, Canales D, Moreno‐Serna V, Benavente R, Rivas LM, Ulloa MT, Gil‐Castell O, Ribes‐Greus A, Ortiz JA, Zapata PA. Poly (lactic acid)/D‐limonene/
ZnO bio‐nanocomposites
with antimicrobial properties. J Appl Polym Sci 2022. [DOI: 10.1002/app.51542] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Francesca Antonella Sepúlveda
- Universidad de Santiago de Chile (USACH) Facultad de Química y Biología, Departamento de Ciencias del Ambiente, Grupo Polímeros Chile
| | - Francisca Rivera
- Universidad de Santiago de Chile (USACH) Facultad de Química y Biología, Departamento de Ciencias del Ambiente, Grupo Polímeros Chile
| | - Carlos Loyo
- Universidad de Santiago de Chile (USACH) Facultad de Química y Biología, Departamento de Ciencias del Ambiente, Grupo Polímeros Chile
| | - Daniel Canales
- Universidad de Santiago de Chile (USACH) Facultad de Química y Biología, Departamento de Ciencias del Ambiente, Grupo Polímeros Chile
| | - Viviana Moreno‐Serna
- Universidad de Santiago de Chile (USACH) Facultad de Química y Biología, Departamento de Ciencias del Ambiente, Grupo Polímeros Chile
| | | | - Lina María Rivas
- Programa de Microbiología y Micología ICBM‐Facultad de Medicina Universidad de Chile Chile
| | - María Teresa Ulloa
- Programa de Microbiología y Micología ICBM‐Facultad de Medicina Universidad de Chile Chile
| | - Oscar Gil‐Castell
- Instituto de Tecnología de Materiales (ITM) Universitat Politècnica de València (UPV) Spain
| | - Amparo Ribes‐Greus
- Instituto de Tecnología de Materiales (ITM) Universitat Politècnica de València (UPV) Spain
| | - J. Andrés Ortiz
- Universidad de Santiago de Chile (USACH) Facultad de Química y Biología, Departamento de Ciencias del Ambiente, Grupo Polímeros Chile
- Departamento de Ingeniería Química, Biotecnología y Materiales Facultad de Ciencias Físicas y Matemáticas, Universidad de Chile Chile
| | - Paula A. Zapata
- Universidad de Santiago de Chile (USACH) Facultad de Química y Biología, Departamento de Ciencias del Ambiente, Grupo Polímeros Chile
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9
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Ng HM, Bee ST, Sin LT, Ratnam CT. Optimization study on properties of poly (lactic acid) (PLA) composites filled with Scomberomorus guttatus-derived hydroxyapatite and montmorillonite (MMT) under electron beam irradiation. Polym Bull (Berl) 2021. [DOI: 10.1007/s00289-021-03892-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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10
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Lopes Alves J, Rosa P, Realinho VC, Antunes M, Velasco J, Morales AR. Single and hybrid organoclay‐filled
PLA
nanocomposites: Mechanical properties, viscoelastic behavior and fracture toughening mechanism. J Appl Polym Sci 2021. [DOI: 10.1002/app.50784] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jefferson Lopes Alves
- School of Chemical Engineering State University of Campinas Campinas Sao Paulo Brazil
| | - Paulo Rosa
- Institute of Chemistry State University of Campinas Campinas Sao Paulo Brazil
| | - Vera C. Realinho
- Department of Materials Science and Engineering, Poly2 Group Technical University of Catalonia (UPC BarcelonaTech), ESEIAAT Terrassa Barcelona Spain
| | - Marcelo Antunes
- Department of Materials Science and Engineering, Poly2 Group Technical University of Catalonia (UPC BarcelonaTech), ESEIAAT Terrassa Barcelona Spain
| | - José Velasco
- Department of Materials Science and Engineering, Poly2 Group Technical University of Catalonia (UPC BarcelonaTech), ESEIAAT Terrassa Barcelona Spain
| | - Ana Rita Morales
- School of Chemical Engineering State University of Campinas Campinas Sao Paulo Brazil
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11
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Polylactic acid/Gemini surfactant modified clay bio-nanocomposites: Morphological, thermal, mechanical and barrier properties. Int J Biol Macromol 2021; 177:505-516. [PMID: 33621565 DOI: 10.1016/j.ijbiomac.2021.02.135] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Revised: 02/18/2021] [Accepted: 02/18/2021] [Indexed: 11/24/2022]
Abstract
To improve PLA's properties and overcome its drawbacks such us poor thermal stability, resistance and gas barrier properties, several studies have been performed using different nanofillers. In this work, PLA nanocomposites reinforced by three organoclays, OMt(8-4-8), OMt(10-4-10) and OMt(12-4-12) at various weight percentages (1 and 3 wt%) were prepared by melt mixing using a twin-screw extruder. The organoclays were obtained from sodium montmorillionite and gemini surfactants bearing different hydrophobic chain lengths. The resulting nanocomposites have been characterized in terms of composition and morphology by X-ray diffraction analysis (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The thermal stability and cold crystallization behavior were accessed by thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). The effect of clay composition and concentration on the mechanical and rheological properties of the nanocomposites as well as their water vapor permeability has been also investigated. The resulting nanocomposites exhibit a significantly reduced permeability as compared to unfilled PLA and an improved young modulus and toughness at the detriment of ductility.
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12
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Interaction Effect of Scomberomorus Guttatus-Derived Hydroxyapatite and Montmorillonite on the Characteristics of Polylactic Acid Blends for Biomedical Application. JOURNAL OF POLYMER RESEARCH 2020. [DOI: 10.1007/s10965-020-02138-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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13
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Li-Sha Zhao, Yan-Hua Cai. Non-isothermal Crystallization, Melting Behavior, Thermal Decomposition, Fluidity and Mechanical Properties of Melt Processed Poly(L-lactic acid) Nucleated by N,N'-Adipic Bis(piperonylic acid) Dihydrazide. POLYMER SCIENCE SERIES A 2020. [DOI: 10.1134/s0965545x20040124] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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14
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Cao X, Chi X, Deng X, Sun Q, Gong X, Yu B, Yuen ACY, Wu W, Li RKY. Facile Synthesis of Phosphorus and Cobalt Co-Doped Graphitic Carbon Nitride for Fire and Smoke Suppressions of Polylactide Composite. Polymers (Basel) 2020; 12:polym12051106. [PMID: 32408685 PMCID: PMC7285335 DOI: 10.3390/polym12051106] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 04/25/2020] [Accepted: 05/06/2020] [Indexed: 11/16/2022] Open
Abstract
Due to the unique two-dimensional structure and features of graphitic carbon nitride (g-C3N4), such as high thermal stability and superior catalytic property, it is considered to be a promising flame retardant nano-additive for polymers. Here, we reported a facile strategy to prepare cobalt/phosphorus co-doped graphitic carbon nitride (Co/P-C3N4) by a simple and scalable thermal decomposition method. The structure of Co/P-C3N4 was confirmed by scanning electron microscopy (SEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). The carbon atoms in g-C3N4 were most likely substituted by phosphorous atoms. The thermal stability of polylactide (PLA) composites was increased continuously with increasing the content of Co/P-C3N4. In contrast to the g-C3N4, the Polylactide (PLA) composites containing Co/P-C3N4 exhibited better flame retardant efficiency and smoke suppression. With the addition of 10 wt % Co/P-C3N4, the peak heat release rate (PHRR), carbon dioxide (CO2) production (PCO2P) and carbon oxide (CO) production (PCOP) values of PLA composites decreased by 22.4%, 16.2%, and 38.5%, respectively, compared to those of pure PLA, although the tensile strength of PLA composites had a slightly decrease. The char residues of Co/P-C3N4 composites had a more compact and continuous structure with few cracks. These improvements are ascribed to the physical barrier effect, as well as catalytic effects of Co/P-C3N4, which inhibit the rapid release of combustible gaseous products and suppression of toxic gases, i.e., CO.
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Affiliation(s)
- Xianwu Cao
- National Engineering Research Center of Novel Equipment for Polymer Processing, Key Laboratory of Polymer Processing Engineering of Ministry of Education, Guangdong Provincial Key Laboratory of Technique and Equipment for Macromolecular Advanced Manufacturing, South China University of Technology, Guangzhou 510640, China; (X.C.); (X.C.); (X.D.)
| | - Xiaoning Chi
- National Engineering Research Center of Novel Equipment for Polymer Processing, Key Laboratory of Polymer Processing Engineering of Ministry of Education, Guangdong Provincial Key Laboratory of Technique and Equipment for Macromolecular Advanced Manufacturing, South China University of Technology, Guangzhou 510640, China; (X.C.); (X.C.); (X.D.)
| | - Xueqin Deng
- National Engineering Research Center of Novel Equipment for Polymer Processing, Key Laboratory of Polymer Processing Engineering of Ministry of Education, Guangdong Provincial Key Laboratory of Technique and Equipment for Macromolecular Advanced Manufacturing, South China University of Technology, Guangzhou 510640, China; (X.C.); (X.C.); (X.D.)
| | - Qijun Sun
- Department of Materials Science and Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR 999077, China; (Q.S.); (X.G.); (R.K.Y.L.)
| | - Xianjing Gong
- Department of Materials Science and Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR 999077, China; (Q.S.); (X.G.); (R.K.Y.L.)
| | - Bin Yu
- Centre for Future Materials, University of Southern Queensland, Toowoomba 4350, Australia
- Correspondence: (B.Y.); (W.W.)
| | - Anthony Chun Yin Yuen
- School of Mechanical and Manufacturing Engineering, University of New South Wales, Sydney 2052, Australia;
| | - Wei Wu
- National Engineering Research Center of Novel Equipment for Polymer Processing, Key Laboratory of Polymer Processing Engineering of Ministry of Education, Guangdong Provincial Key Laboratory of Technique and Equipment for Macromolecular Advanced Manufacturing, South China University of Technology, Guangzhou 510640, China; (X.C.); (X.C.); (X.D.)
- Department of Materials Science and Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR 999077, China; (Q.S.); (X.G.); (R.K.Y.L.)
- Correspondence: (B.Y.); (W.W.)
| | - Robert Kwow Yiu Li
- Department of Materials Science and Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR 999077, China; (Q.S.); (X.G.); (R.K.Y.L.)
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15
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Sikora J, Majewski Ł, Puszka A. Modern Biodegradable Plastics-Processing and Properties: Part I. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E1986. [PMID: 32344558 PMCID: PMC7215468 DOI: 10.3390/ma13081986] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Revised: 04/21/2020] [Accepted: 04/22/2020] [Indexed: 11/16/2022]
Abstract
This paper presents a characterization of a plastic extrusion process and the selected properties of three biodegradable plastic types, in comparison with LDPE (low-density polyethylene). The four plastics include: LDPE, commercial name Malen E FABS 23-D022; potato starch based plastic (TPS-P), BIOPLAST GF 106/02; corn starch based plastic (TPS-C), BioComp®BF 01HP; and a polylactic acid (polylactide) plastic (PLA), BioComp®BF 7210. Plastic films with determined geometric parameters (thickness of the foil layer and width of the flattened foil sleeve) were produced from these materials (at individually defined processing temperatures), using blown film extrusion, by applying different extrusion screw speeds. The produced plastic films were tested to determine the geometrical features, MFR (melt flow rate), blow-up ratio, draw down ratio, mass flow rate, and exit velocity. The tests were complemented by thermogravimetry, differential scanning calorimetry, and chemical structure analysis. It was found that the biodegradable films were extruded at higher rate and mass flow rate than LDPE; the lowest thermal stability was ascertained for the film samples extruded from TPS-C and TPS-P, and that all tested biodegradable plastics contained polyethylene.
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Affiliation(s)
- Janusz Sikora
- Department of Technology and Polymer Processing, Faculty of Mechanical Engineering, Lublin University of Technology, Nadbystrzycka 36, 20-618 Lublin, Poland;
| | - Łukasz Majewski
- Department of Technology and Polymer Processing, Faculty of Mechanical Engineering, Lublin University of Technology, Nadbystrzycka 36, 20-618 Lublin, Poland;
| | - Andrzej Puszka
- Department of Polymer Chemistry, Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie-Sklodowska University in Lublin, ul. Gliniana 33, 20-614 Lublin, Poland;
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16
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Fernández MJ, Fernández MD. Effect of Organic Modifier and Clay Content on Non-Isothermal Cold Crystallization and Melting Behavior of Polylactide/Organovermiculite Nanocomposites. Polymers (Basel) 2020; 12:polym12020364. [PMID: 32046008 PMCID: PMC7077447 DOI: 10.3390/polym12020364] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 01/28/2020] [Accepted: 02/05/2020] [Indexed: 12/18/2022] Open
Abstract
In clay/polymer nanocomposites, the crystallization behavior and kinetics of the polymer can be affected by the presence of clay, its content and the degree of miscibility between the clay and the polymer matrix. The effect of two different organomodified vermiculites on the non-isothermal cold crystallization and melting behavior of polylactide (PLA) was studied by differential scanning calorimetry (DSC). In the presence of vermiculites, the cold crystallization of PLA occurred earlier, particularly for the highest content of the most miscible organovermiculite with PLA. The cold crystallinity of PLA decreased at low heating rates, notably at high organoclay loadings, and increased at high heating rates, especially at low vermiculite contents. According to the crystallization half-time, crystallization rate coefficient (CRC), and crystallization rate parameter (CRP) approaches, the cold crystallization rate of PLA increased by incorporating vermiculites, with the effect being most noteworthy for the vermiculite showing better compatibility. The Mo model was successful in describing the non-isothermal cold crystallization kinetics of the PLA/vermiculite composites. The melting behavior was affected by the heating rate and the type and content of clay. The nucleating effect of the most compatible clay resulted in the less perfect crystallites. The activation energy was evaluated using the Kissinger and Takhor methods.
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Mahmoodi A, Ghodrati S, Khorasani M. High-Strength, Low-Permeable, and Light-Protective Nanocomposite Films Based on a Hybrid Nanopigment and Biodegradable PLA for Food Packaging Applications. ACS OMEGA 2019; 4:14947-14954. [PMID: 31552335 PMCID: PMC6751698 DOI: 10.1021/acsomega.9b01731] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Accepted: 08/19/2019] [Indexed: 06/10/2023]
Abstract
Herein, a multifunctional filler, a dye (organic)-clay (inorganic) hybrid nanopigment (DCNP), was embedded into polylactic acid (PLA) to fabricate a colored biodegradable/biocompatible film, which is explored as a high thermomechanical resistant as well as a superior light and mass transport barrier for food packaging applications. In this respect, the DCNP was synthesized through a wet chemical process with a reaction yield of 76% and incorporated into a PLA matrix at various concentrations using a solution casting method. The morphological characterizations revealed partially intercalated/exfoliated structure for PLA-DCNP films. The samples filled with DCNP showed up to 20% and 12 °C improvements in storage modulus (E') and glass transition temperature (T g), respectively, compared to those with neat PLA. Incorporation of a small amount of DCNP into the PLA matrix significantly declined the water vapor and gas permeability of PLA by 36 and 54%, respectively. The optical property investigations indicated remarkable color characteristics and light protection performance of the samples containing DCNP. The results also showed better performance of the PLA-DCNP film compared to that of the PLA-Cloisite 20A sample at an identical filler loading. In conclusion, the desirable properties of the resulting films highlighted the potential application of such nanocomposite films as a promising option for food packaging materials.
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Affiliation(s)
- Ali Mahmoodi
- Department of Polymer Engineering
and Color Technology, Amirkabir University
of Technology, P.O. Box 15875-4413, 1591634311 Tehran, Iran
| | - Sajjad Ghodrati
- Department of Polymer Engineering
and Color Technology, Amirkabir University
of Technology, P.O. Box 15875-4413, 1591634311 Tehran, Iran
| | - Manouchehr Khorasani
- Department of Polymer Engineering
and Color Technology, Amirkabir University
of Technology, P.O. Box 15875-4413, 1591634311 Tehran, Iran
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18
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He H, Pang Y, Duan Z, Luo N, Wang Z. The Strengthening and Toughening of Biodegradable Poly (Lactic Acid) Using the SiO 2-PBA Core-Shell Nanoparticle. MATERIALS 2019; 12:ma12162510. [PMID: 31394785 PMCID: PMC6720591 DOI: 10.3390/ma12162510] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 08/02/2019] [Accepted: 08/05/2019] [Indexed: 11/16/2022]
Abstract
The balance of strengthening and toughening of poly (lactic acid) (PLA) has been an intractable challenge of PLA nanocomposite development for many years. In this paper, core-shell nanoparticles consisting of a silica rigid core and poly (butyl acrylate) (PBA) flexible shell were incorporated to achieve the simultaneous enhancement of the strength and toughness of PLA. The effect of core-shell nanoparticles on the tensile, flexural and Charpy impact properties of PLA nanocomposite were experimentally investigated. Scanning electron microscopy (SEM) and small-angle X-ray scattering (SAXS) measurements were performed to investigate the toughening mechanisms of nanocomposites. The experimental results showed that the addition of core-shell nanoparticles can improve the stiffness and strength of PLA. Meanwhile, its elongation at break, tensile toughness and impact resistance were enhanced simultaneously. These observations can be attributed to the cavitation of the flexible shell in core-shell nanoparticles and the resultant shear yielding of the matrix. In addition, a three-dimensional finite element model was also proposed to illustrate the damage processes of core-shell nanoparticle-reinforced polymer composites. It was found that, compared with the experimental performance, the proposed micromechanical model is favorable to illustrate the mechanical behavior of nanocomposites.
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Affiliation(s)
- Hailing He
- College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin 150001, China
| | - Yuezhao Pang
- College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin 150001, China
| | - Zhiwei Duan
- Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, Sichuan, China
| | - Na Luo
- College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin 150001, China
| | - Zhenqing Wang
- College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin 150001, China.
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19
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Cai YH, Zhao LS. Investigation on the modification of N,N′-adipic bis(benzoic acid) dihydrazide on poly(l-lactic acid). Polym Bull (Berl) 2019. [DOI: 10.1007/s00289-018-2498-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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20
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Norazlina H, Hadi AA, Qurni AU, Amri M, Mashelmie S, Kamal Y. Effects of multi-walled carbon nanotubes (MWCNTs) on the degradation behavior of plasticized PLA nanocomposites. Polym Bull (Berl) 2018. [DOI: 10.1007/s00289-018-2454-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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21
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Tang MC, Agarwal S, Alsewailem FD, Choi HJ, Gupta RK. A model for water vapor permeability reduction in poly(lactic acid) and nanoclay nanocomposites. J Appl Polym Sci 2018. [DOI: 10.1002/app.46506] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Man Chio Tang
- Department of Chemical and Biomedical Engineering; West Virginia University; Morgantown West Virginia 26506
| | - Sushant Agarwal
- Department of Chemical and Biomedical Engineering; West Virginia University; Morgantown West Virginia 26506
| | | | - Hyoung J. Choi
- Department of Polymer Science and Engineering; Inha University; Incheon 402-751 Korea
| | - Rakesh K. Gupta
- Department of Chemical and Biomedical Engineering; West Virginia University; Morgantown West Virginia 26506
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22
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Nishida M, Tanaka T, Tanaka T, Hayakawa Y. Nucleating and Plasticization Effects in Drawn Poly(Lactic Acid) Fiber during Accelerated Weathering Degradation. Polymers (Basel) 2018; 10:polym10040365. [PMID: 30966400 PMCID: PMC6415028 DOI: 10.3390/polym10040365] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Revised: 03/13/2018] [Accepted: 03/23/2018] [Indexed: 11/16/2022] Open
Abstract
Changes in the polymer properties of poly(lactic acid) (PLA) fibers during drawing and degradation processes were analyzed using solid-state NMR, with the goal of elucidating morphological changes that influence fiber tensile properties. Combination of X-ray diffraction (XRD) and differential scanning calorimeter (DSC) indicated that the drawn PLA fibers consisted of different proportions of α crystalline and amorphous forms. 13C CP-MAS NMR spectra showed amorphous-like broad singlet signals, of which the full width at half maximum (FWHM) decreased with increasing crystallinity and crystal orientation. The T1H value decreased by interaction with additives and increased with increasing crystal orientation. The interaction with additives also reduced T1C values, which increased with increasing crystallinity. Use of organic clay enhanced the crystallization of high draw-ratio PLA fibers due to nucleation, which increased tensile strength; this effect gradually decreased with time during accelerated weathering. In contrast, the plasticization due to the addition of flexible polymers increased fiber elongation, which rapidly dropped during the degradation. Changes of FWHM, T1H, and T1C values indicated that the degradation occurred at sites within the amorphous portions of the PLA fibers containing organic clay, while the flexible polymers were preferentially degraded if they were present in the PLA fibers.
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Affiliation(s)
- Masakazu Nishida
- National Institute of Advanced Industrial Science and Technology (AIST), 2266-98 Shimoshidami, Moriyama-ku, Nagoya 463-8560, Japan; (T.T.); (Y.H.)
- Correspondence: ; Tel.: +81-52-736-7493
| | - Tomoko Tanaka
- National Institute of Advanced Industrial Science and Technology (AIST), 2266-98 Shimoshidami, Moriyama-ku, Nagoya 463-8560, Japan; (T.T.); (Y.H.)
| | - Toshiyuki Tanaka
- Owari Textile Research Center, Aichi Center for Industry and Science Technology, 35 Miyaura, Mabiki, Yamato-cho, Ichinomiya, Aichi 491-0931, Japan;
| | - Yoshio Hayakawa
- National Institute of Advanced Industrial Science and Technology (AIST), 2266-98 Shimoshidami, Moriyama-ku, Nagoya 463-8560, Japan; (T.T.); (Y.H.)
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23
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Mngomezulu ME, Luyt AS, Chapple SA, John MJ. Effect of expandable graphite on thermal and flammability properties of poly(lactic acid)-starch/poly(ɛ-caprolactone) blend systems. POLYM ENG SCI 2017. [DOI: 10.1002/pen.24751] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Mfiso E. Mngomezulu
- Department of Chemistry; University of the Free State (Qwaqwa Campus), Private Bag X13; Phuthaditjhaba, 9866 South Africa
| | - Adriaan S. Luyt
- Center for Advanced Materials; Qatar University, PO Box 2713; Doha Qatar
| | - Steve A. Chapple
- CSIR Materials Science and Manufacturing; Polymers and Composites Competence Area, P.O. Box 1124; Port Elizabeth, 6000 South Africa
| | - Maya J. John
- CSIR Materials Science and Manufacturing; Polymers and Composites Competence Area, P.O. Box 1124; Port Elizabeth, 6000 South Africa
- Department of Chemistry, Faculty of Science; Nelson Mandela University, PO Box 1600; Port Elizabeth, 6000 South Africa
- School of Mechanical, Industrial and Aeronautical Engineering; University of the Witwatersrand; Johannesburg South Africa
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24
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Cai YH, Zhao LS, Tang Y. Thermal Performance of a Blend System Based on Poly(l-lactic acid) and an Aliphatic Multiamide Derivative of 1H-Benzotriazole. J MACROMOL SCI B 2016. [DOI: 10.1080/00222348.2016.1261594] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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25
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Ramos M, Fortunati E, Peltzer M, Jimenez A, Kenny JM, Garrigós MC. Characterization and disintegrability under composting conditions of PLA-based nanocomposite films with thymol and silver nanoparticles. Polym Degrad Stab 2016. [DOI: 10.1016/j.polymdegradstab.2016.05.015] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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26
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Maleki H, Gharehaghaji AA, Toliyat T, Dijkstra PJ. Drug release behavior of electrospun twisted yarns as implantable medical devices. Biofabrication 2016; 8:035019. [DOI: 10.1088/1758-5090/8/3/035019] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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27
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Marek AA, Verney V. Photochemical reactivity of PLA at the vicinity of glass transition temperature. The photo-rheology method. Eur Polym J 2016. [DOI: 10.1016/j.eurpolymj.2016.06.016] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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28
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Garrison TF, Murawski A, Quirino RL. Bio-Based Polymers with Potential for Biodegradability. Polymers (Basel) 2016; 8:E262. [PMID: 30974537 PMCID: PMC6432354 DOI: 10.3390/polym8070262] [Citation(s) in RCA: 108] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Revised: 07/03/2016] [Accepted: 07/06/2016] [Indexed: 01/20/2023] Open
Abstract
A variety of renewable starting materials, such as sugars and polysaccharides, vegetable oils, lignin, pine resin derivatives, and proteins, have so far been investigated for the preparation of bio-based polymers. Among the various sources of bio-based feedstock, vegetable oils are one of the most widely used starting materials in the polymer industry due to their easy availability, low toxicity, and relative low cost. Another bio-based plastic of great interest is poly(lactic acid) (PLA), widely used in multiple commercial applications nowadays. There is an intrinsic expectation that bio-based polymers are also biodegradable, but in reality there is no guarantee that polymers prepared from biorenewable feedstock exhibit significant or relevant biodegradability. Biodegradability studies are therefore crucial in order to assess the long-term environmental impact of such materials. This review presents a brief overview of the different classes of bio-based polymers, with a strong focus on vegetable oil-derived resins and PLA. An entire section is dedicated to a discussion of the literature addressing the biodegradability of bio-based polymers.
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Affiliation(s)
- Thomas F Garrison
- Department of Chemistry, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia.
| | - Amanda Murawski
- Department of Chemistry, Georgia Southern University, Statesboro, GA 30460, USA.
| | - Rafael L Quirino
- Department of Chemistry, Georgia Southern University, Statesboro, GA 30460, USA.
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29
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Olewnik-Kruszkowska E. Influence of the type of buffer solution on thermal and structural properties of polylactide-based composites. Polym Degrad Stab 2016. [DOI: 10.1016/j.polymdegradstab.2016.04.009] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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30
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Cai YH, Zhao LS. Thermal behavior of modified poly(L-lactic acid): effect of aromatic multiamide derivative based on 1H-benzotriazole. E-POLYMERS 2016. [DOI: 10.1515/epoly-2016-0052] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractThe goal of this work was to synthesis a novel aromatic multiamide derivative based on 1H-benzotriazole (PB) as an organic nucleating agent for poly(L-lactic acid) (PLLA), and investigate the effect of PB on the non-isothermal crystallization, melting behavior and thermal decomposition of PLLA. Here, PB was firstly synthesized through 1H-benzotriazole aceto-hydrazide and terephthaloyl chloride, then PB-nucleated PLLA was fabricated via melt-blending technology at various PB concentration from 0.5 wt% to 3 wt%. Finally, the thermal performances were evaluated through differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). The high thermal decomposition temperature of PB indicated that PB possessed possibility as a nucleating agent for PLLA, and the non-isothermal crystallization behavior confirmed the crystallization accelerating effectiveness of PB for PLLA. Upon optimum concentration of 2 wt%, the onset crystallization temperature, the crystallization peak temperature and the non-isothermal crystallization enthalpy increased from 101.4°C, 94.5°C and 0.1 J·g-1 to 121.3°C, 115.8°C and 35.1 J·g-1, respectively. In addition, the non-isothermal crystallization behavior was also affected by the cooling rate and the final melting temperature. The melting behavior further evidenced the advanced nucleating ability of PB, and the competitive relationship between PB and the heating rate, the nuclear rate and crystal growth rate. Thermal stability measurement showed that PB with a concentration of 1 wt%–2 wt% could slightly improve the thermal stability of PLLA.
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Affiliation(s)
- Yan-Hua Cai
- 1Chongqing Key Laboratory of Environmental Materials and Remediation Technologies, Chongqing University of Arts and Sciences, Chongqing 402160, P.R. China
| | - Li-Sha Zhao
- 1Chongqing Key Laboratory of Environmental Materials and Remediation Technologies, Chongqing University of Arts and Sciences, Chongqing 402160, P.R. China
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31
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Souza VGL, Fernando AL. Nanoparticles in food packaging: Biodegradability and potential migration to food—A review. Food Packag Shelf Life 2016. [DOI: 10.1016/j.fpsl.2016.04.001] [Citation(s) in RCA: 151] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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32
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Olewnik-Kruszkowska E, Kasperska P, Koter I. Effect of poly(ε-caprolactone) as plasticizer on the properties of composites based on polylactide during hydrolytic degradation. REACT FUNCT POLYM 2016. [DOI: 10.1016/j.reactfunctpolym.2016.03.026] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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33
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Guo C, Huo H. Poor solvent as a nucleating agent to induce poly(ε-caprolactone) ultrathin film crystallization on poly(vinylpyrrolidone) substrate. Colloid Polym Sci 2016. [DOI: 10.1007/s00396-015-3821-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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34
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Mousa MH, Dong Y, Davies IJ. Recent advances in bionanocomposites: Preparation, properties, and applications. INT J POLYM MATER PO 2016. [DOI: 10.1080/00914037.2015.1103240] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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35
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Morel F, Espuche E, Bounor-Legaré V, Persynn O, Lacroix M. Impact of coated calcium carbonate nanofillers and annealing treatments on the microstructure and gas barrier properties of poly(lactide) based nanocomposite films. ACTA ACUST UNITED AC 2015. [DOI: 10.1002/polb.23957] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Floriane Morel
- CNRS, UMR5223, Ingénierie des Matériaux Polymères, 15 Bd. A. Latarjet, Université de Lyon; Université Lyon 1 69622 Villeurbanne France
- SOLVAY spécialités France; Route d'Arles 13129 Salin-de-Giraud France
| | - Eliane Espuche
- CNRS, UMR5223, Ingénierie des Matériaux Polymères, 15 Bd. A. Latarjet, Université de Lyon; Université Lyon 1 69622 Villeurbanne France
| | - Véronique Bounor-Legaré
- CNRS, UMR5223, Ingénierie des Matériaux Polymères, 15 Bd. A. Latarjet, Université de Lyon; Université Lyon 1 69622 Villeurbanne France
| | - Olivia Persynn
- SOLVAY spécialités France; Route d'Arles 13129 Salin-de-Giraud France
| | - Marc Lacroix
- SOLVAY S.A., SBU Advanced Functional Minerals; 310 rue de Ransbeek 1120 Bruxelles Belgium
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36
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Effect of processing conditions and lignin content on thermal, mechanical and degradative behavior of lignin nanoparticles/polylactic (acid) bionanocomposites prepared by melt extrusion and solvent casting. Eur Polym J 2015. [DOI: 10.1016/j.eurpolymj.2015.07.051] [Citation(s) in RCA: 93] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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37
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Ramos M, Fortunati E, Peltzer M, Dominici F, Jiménez A, Garrigós MDC, Kenny JM. Influence of thymol and silver nanoparticles on the degradation of poly(lactic acid) based nanocomposites: Thermal and morphological properties. Polym Degrad Stab 2014. [DOI: 10.1016/j.polymdegradstab.2014.02.011] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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38
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FRANCO-URQUIZA EDGARADRIAN, CAILLOUX JONATHAN, SANTANA ORLANDO, MASPOCH MARIALLUISA, VELAZQUEZ INFANTE JULIOCESAR. The Influence of the Clay Particles on the Mechanical Properties and Fracture Behavior of PLA/o-MMT Composite Films. ADVANCES IN POLYMER TECHNOLOGY 2014. [DOI: 10.1002/adv.21470] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- EDGAR ADRIAN FRANCO-URQUIZA
- Centre Català del Plàstic; Universitat Politècnica de Catalunya, Edifici Vapor Universitari de Terrassa; Terrassa 08222 Spain
| | - JONATHAN CAILLOUX
- Centre Català del Plàstic; Universitat Politècnica de Catalunya, Edifici Vapor Universitari de Terrassa; Terrassa 08222 Spain
| | - ORLANDO SANTANA
- Centre Català del Plàstic; Universitat Politècnica de Catalunya, Edifici Vapor Universitari de Terrassa; Terrassa 08222 Spain
| | - MARIA LLUISA MASPOCH
- Centre Català del Plàstic; Universitat Politècnica de Catalunya, Edifici Vapor Universitari de Terrassa; Terrassa 08222 Spain
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39
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Darie RN, Pâslaru E, Sdrobis A, Pricope GM, Hitruc GE, Poiată A, Baklavaridis A, Vasile C. Effect of Nanoclay Hydrophilicity on the Poly(lactic acid)/Clay Nanocomposites Properties. Ind Eng Chem Res 2014. [DOI: 10.1021/ie500577m] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Raluca N. Darie
- “Petru
Poni” Institute of Macromolecular Chemistry, Physical Chemistry
of Polymers Department, Romanian Academy, Grigore Ghica Voda Alley, Ro 700487 Iasi, Romania
| | - Elena Pâslaru
- “Petru
Poni” Institute of Macromolecular Chemistry, Physical Chemistry
of Polymers Department, Romanian Academy, Grigore Ghica Voda Alley, Ro 700487 Iasi, Romania
| | - Anamaria Sdrobis
- “Petru
Poni” Institute of Macromolecular Chemistry, Physical Chemistry
of Polymers Department, Romanian Academy, Grigore Ghica Voda Alley, Ro 700487 Iasi, Romania
| | - Gina M. Pricope
- Veterinary
and the Food Safety Laboratory, Food Safety Department, Iasi, Romania
| | - Gabriela E. Hitruc
- “Petru
Poni” Institute of Macromolecular Chemistry, Physical Chemistry
of Polymers Department, Romanian Academy, Grigore Ghica Voda Alley, Ro 700487 Iasi, Romania
| | - Antoniea Poiată
- “Grigore T. Popa” Medicine and Pharmacy University, 16 University Street, 700115 Iasi, Romania
| | - Apostolos Baklavaridis
- Technological
Educational Institute of Western Macedonia, Western Macedonia University of Applied Sciences, 50100 Kozani, Greece
| | - Cornelia Vasile
- “Petru
Poni” Institute of Macromolecular Chemistry, Physical Chemistry
of Polymers Department, Romanian Academy, Grigore Ghica Voda Alley, Ro 700487 Iasi, Romania
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40
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Araújo A, Oliveira M, Oliveira R, Botelho G, Machado AV. Biodegradation assessment of PLA and its nanocomposites. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2013; 21:9477-9486. [PMID: 24222440 DOI: 10.1007/s11356-013-2256-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2013] [Accepted: 10/15/2013] [Indexed: 06/02/2023]
Abstract
Poly(lactic acid) nanocomposites containing Cloisite 15A, Cloisite 30B, and Dellite 43B were prepared by melt-mixing in a batch mixer and were exposed to UV radiation, temperature, and microorganism in solution and in a compost. Exposed samples, collected along the time, were characterized by several techniques. While the addition of organoclays had a positive effect on thermal stability, the degradation rate of nanocomposites increased when exposed to UV radiation and microorganism. Moreover, the degradation rate depends on the organoclay type. Even though the degradation rate is higher for nanocomposites, Fourier transform infrared spectrometry and gel permeation chromatography results demonstrated that the degradation mechanism is the same.
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Affiliation(s)
- A Araújo
- IPC-Institute for Polymers and Composites/I3N, University of Minho, Campus de Azurém, 4800-058, Guimarães, Portugal
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41
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Lu X, Huang J, He G, Yang L, Zhang N, Zhao Y, Qu J. Preparation and Characterization of Cross-Linked Poly(butylene succinate) by Multifunctional Toluene Diisocyanate–Trimethylolpropane Polyurethane Prepolymer. Ind Eng Chem Res 2013. [DOI: 10.1021/ie4020342] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xiang Lu
- The Key Laboratory of Polymer
Processing Engineering of the Ministry of Education, National Engineering
Research Center of Novel Equipment for Polymer Processing, South China University of Technology, Guangzhou 510640, China
| | - Jintao Huang
- The Key Laboratory of Polymer
Processing Engineering of the Ministry of Education, National Engineering
Research Center of Novel Equipment for Polymer Processing, South China University of Technology, Guangzhou 510640, China
| | - Guangjian He
- The Key Laboratory of Polymer
Processing Engineering of the Ministry of Education, National Engineering
Research Center of Novel Equipment for Polymer Processing, South China University of Technology, Guangzhou 510640, China
| | - Li Yang
- The Key Laboratory of Polymer
Processing Engineering of the Ministry of Education, National Engineering
Research Center of Novel Equipment for Polymer Processing, South China University of Technology, Guangzhou 510640, China
| | - Ning Zhang
- The Key Laboratory of Polymer
Processing Engineering of the Ministry of Education, National Engineering
Research Center of Novel Equipment for Polymer Processing, South China University of Technology, Guangzhou 510640, China
| | - Yongqing Zhao
- The Key Laboratory of Polymer
Processing Engineering of the Ministry of Education, National Engineering
Research Center of Novel Equipment for Polymer Processing, South China University of Technology, Guangzhou 510640, China
| | - Jinping Qu
- The Key Laboratory of Polymer
Processing Engineering of the Ministry of Education, National Engineering
Research Center of Novel Equipment for Polymer Processing, South China University of Technology, Guangzhou 510640, China
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