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Ding Y, Ma H, Liu X, Qin S, Liu J, Qu G, Bai Y, Zhao L. Improvement of the mechanical and shape memory properties in polylactide/polyethylene glycol blends by reactive graphene oxide. Int J Biol Macromol 2023; 253:127346. [PMID: 37832621 DOI: 10.1016/j.ijbiomac.2023.127346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Revised: 10/02/2023] [Accepted: 10/08/2023] [Indexed: 10/15/2023]
Abstract
The widespread application of biodegradable polylactide (PLA) is hindered by its brittleness. Polyethylene glycol (PEG) is commonly utilized as a plasticizer because of its favorable compatibility with PLA. However, the incorporation of PEG considerably diminishes the tensile strength of PLA. To address this issue, reactive isocyanate-modified graphene oxide (mGO) was synthesized and used as an enhancer in PLA/PEG blends. By virtue of the reaction between the isocyanate group in mGO and the terminal hydroxyl groups of PLA and PEG, graphene-based polyurethane (PU) in-situ formed and enhanced the interface between GO and the matrix. Consequently, the PLA/PEG/mGO composites exhibit simultaneously improved tensile and impact strengths, achieving an increase of 20.6% and 29.4%, respectively, compared to PLA/PEG blends. Moreover, the in situ formed PU reduces the relaxation time of the molecule motion and improved the entanglement density, thereby improving the shape-memory recovery rate and final recovery degree of the composites. This work provides a facile method to simultaneously improve the dispersion of GO and enhance its interface with polymer, thereby supplying well comprehensive properties of PLA and extending the applications of biodegradable polymers.
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Affiliation(s)
- Yu Ding
- School of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Haotian Ma
- School of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Xin Liu
- School of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Shengxue Qin
- College of mechanical and electronic engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Jie Liu
- College of mechanical and electronic engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Guanhang Qu
- School of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Yaozong Bai
- Sinoma lithium Battery Separator Co. Ltd, Zaozhuang 277599, China
| | - Lifen Zhao
- School of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China.
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2
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Aynali F, Dandan Doganci M, Balci H. Thermo-mechanical characterization and antimicrobial performance of plasticized poly(lactic acid) films incorporated with non-leaching polycationic antimicrobials. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-021-03815-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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3
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Yang J, Li W, Mu B, Xu H, Hou X, Yang Y. Simultaneous toughness and stiffness of 3D printed nano-reinforced polylactide matrix with complete stereo-complexation via hierarchical crystallinity and reactivity. Int J Biol Macromol 2022; 202:482-493. [PMID: 35051500 DOI: 10.1016/j.ijbiomac.2022.01.090] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 01/04/2022] [Accepted: 01/12/2022] [Indexed: 12/20/2022]
Abstract
A novel strategy adaptive to 3D printing of stereo-complexed polylactide matrix for simultaneous toughness and stiffness was designed. Stereo-complexation is a potent way to enhance both aqueous stability and heat resistance of polylactide, but also aggravates brittleness problem of polylactide. Though poly(butyleneadipate-co-terephthalate) elastomer with epoxidized compatibilizer improved stiffness and toughness of common polylactide, their effectiveness on mechanical and crystallization properties of stereo-complexed polylactide remained unknown. More importantly, incorporation of above techniques into 3D printing kept a fundamental challenge. Both stereo-complexation of polylactide and covalent coupling of polylactide and poly(butyleneadipate-co-terephthalate) by epoxidized compatibilizer are easy to occur when preparing the filaments for printing, impeding the following 3D printing procedure. The hypothesis for this research is that controlled hierarchical crystallization and reaction in three thermal processes could ensure simultaneous toughness and stiffness, and complete stereo-complexation in polylactide matrices. Reinforcing effects of a selected epoxidized compatibilizer, POSS(epoxy)8, on crystallinities, thermal properties, mechanical properties and morphologies were systematically studied. Such a strategy not only removed the obstacles in incorporating stereo-complexation and coupling techniques of polylactide into 3D printing, but also revealed the mechanism to produce high-performance 3D printed polylactide matrix via hierarchical crystallization and reaction.
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Affiliation(s)
- Jing Yang
- Key Laboratory of Science & Technology of Eco-Textiles, Ministry of Education, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
| | - Wei Li
- Key Laboratory of Science & Technology of Eco-Textiles, Ministry of Education, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China.
| | - Bingnan Mu
- Department of Textiles, Merchandising and Fashion Design, University of Nebraska-Lincoln, 234, HECO Building, Lincoln, NE 68583-0802, United States
| | - Helan Xu
- Key Laboratory of Science & Technology of Eco-Textiles, Ministry of Education, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
| | - Xiuliang Hou
- Key Laboratory of Science & Technology of Eco-Textiles, Ministry of Education, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
| | - Yiqi Yang
- Department of Textiles, Merchandising and Fashion Design, University of Nebraska-Lincoln, 234, HECO Building, Lincoln, NE 68583-0802, United States; Department of Biological Systems Engineering, 234, HECO Building, University of Nebraska-Lincoln, Lincoln, NE 68583-0802, United States; Nebraska Center for Materials and Nanoscience, University of Nebraska-Lincoln, 234, HECO Building, Lincoln, NE 68583-0802, United States.
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4
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Yang J, Li W, Mu B, Xu H, Hou X, Yang Y. Hierarchical crystallization strategy adaptive to 3-dimentional printing of polylactide matrix for complete stereo-complexation. Int J Biol Macromol 2021; 193:247-257. [PMID: 34699890 DOI: 10.1016/j.ijbiomac.2021.10.139] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2021] [Revised: 10/06/2021] [Accepted: 10/09/2021] [Indexed: 10/20/2022]
Abstract
A novel strategy adaptive to 3D printing of PLA matrix for complete stereo-complexation was designed. Stereo-complexation has been demonstrated for its effectiveness in simultaneously improving aqueous stability and heat resistance of PLA. However, current techniques could not be directly incorporated into 3D printing of stereo-complexed PLA since stereo-complexed crystallites are easily formed before printing. High printing temperatures are thus required but decompose PLA materials at the same time. The hypothesis for this research is that controllable hierarchical crystallization in three thermal processes, the filament preparation, 3D printing and post annealing, could ensure feasibility of the strategy and a 100% stereo-complexation level in PLA matrices. Effects of extrusion, ambient and annealing temperatures on material structures were analyzed via WAXD, DSC and DMA. Resistance to hydrolysis and heat of the 3D printed PLA matrix was evaluated under practical conditions. It was showed that homo-crystallites anchored molecular chains of PLA during the post-annealing process for a high retention of tensile properties, while stereo-complexed crystallites provided stronger intermolecular interactions for improved hydrolytic and thermal resistance. This novel strategy via incorporating controlled hierarchical crystallization into 3D printing would enrich the fabrication and exploration of high-performance 3D printed PLA materials.
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Affiliation(s)
- Jing Yang
- Key Laboratory of Science & Technology of Eco-Textiles, Ministry of Education, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
| | - Wei Li
- Key Laboratory of Science & Technology of Eco-Textiles, Ministry of Education, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China.
| | - Bingnan Mu
- Department of Textiles, Merchandising and Fashion Design, 234, HECO Building, University of Nebraska-Lincoln, Lincoln, NE 68583-0802, United States
| | - Helan Xu
- Key Laboratory of Science & Technology of Eco-Textiles, Ministry of Education, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
| | - Xiuliang Hou
- Key Laboratory of Science & Technology of Eco-Textiles, Ministry of Education, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
| | - Yiqi Yang
- Department of Textiles, Merchandising and Fashion Design, 234, HECO Building, University of Nebraska-Lincoln, Lincoln, NE 68583-0802, United States; Department of Biological Systems Engineering, 2, HECO Building, University of Nebraska-Lincoln, Lincoln, NE 68583-0802, United States; Nebraska Center for Materials and Nanoscience, 234, HECO Building, University of Nebraska-Lincoln, Lincoln, NE 68583-0802, United States
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5
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Beltrán FR, Gaspar G, Dadras Chomachayi M, Jalali-Arani A, Lozano-Pérez AA, Cenis JL, de la Orden MU, Pérez E, Martínez Urreaga JM. Influence of addition of organic fillers on the properties of mechanically recycled PLA. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:24291-24304. [PMID: 32043250 DOI: 10.1007/s11356-020-08025-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Accepted: 02/06/2020] [Indexed: 05/20/2023]
Abstract
Poly(lactic acid) (PLA) is one of the most used biobased and biodegradable polymers. Due to their high stability, some of the newest grades of PLA are only degradable under severe industrial conditions. For these grades, mechanical recycling is a viable end-of-life option, with great environmental advantages. However, the polymer undergoes degradation during its service life and in the melt reprocessing, which leads to a decrease in properties that can compromise the recyclability of PLA. The goal of this work was to evaluate the usefulness of adding small amounts of two organic fillers, chitosan, and silk fibroin nanoparticles, during the recycling process for improving the properties of the recycled plastic. The degradation level of the aged polymer and the nature and amount of filler affect the performance of the recycled plastics. The fillers reduce the degradation during the melt reprocessing of PLA previously subjected to severe hydrolysis, thus increasing the intrinsic viscosity of the recycled plastic. A careful selection of the added organic filler lead to recycled plastics with improvements in some key mechanical, thermal, and barrier properties. Thus, the use of organic fillers represents a cost-effective and environmentally sound way for improving the mechanical recycling of bioplastics.
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Affiliation(s)
- Freddys R Beltrán
- Dpto. Ingeniería Química Industrial y Medio Ambiente, Universidad Politécnica de Madrid, E.T.S.I. Industriales, 28006, Madrid, Spain
- Grupo de Investigación: Polímeros, Caracterización y Aplicaciones (POLCA, Associated Unit to CSIC), Madrid, Spain
| | - Gerald Gaspar
- Dpto. Ingeniería Química Industrial y Medio Ambiente, Universidad Politécnica de Madrid, E.T.S.I. Industriales, 28006, Madrid, Spain
| | | | - Azam Jalali-Arani
- Department of Polymer Engineering & Color Technology, Amirkabir University of Technology, P.O. Box 15875-4413, Tehran, Iran
| | - Antonio A Lozano-Pérez
- Dpto. Biotecnología, Instituto Murciano de Investigación y Desarrollo Agrario y Alimentario (IMIDA), 30150, Murcia, Spain
| | - José L Cenis
- Dpto. Biotecnología, Instituto Murciano de Investigación y Desarrollo Agrario y Alimentario (IMIDA), 30150, Murcia, Spain
| | - María U de la Orden
- Grupo de Investigación: Polímeros, Caracterización y Aplicaciones (POLCA, Associated Unit to CSIC), Madrid, Spain
- Dpto. de Química Orgánica I, Facultad de Óptica y Optometría, Universidad Complutense de Madrid, 28037, Madrid, Spain
| | - Ernesto Pérez
- Instituto de Ciencia y Tecnología de Polímeros, ICTP-CSIC, 28006, Madrid, Spain
| | - Joaquín M Martínez Urreaga
- Dpto. Ingeniería Química Industrial y Medio Ambiente, Universidad Politécnica de Madrid, E.T.S.I. Industriales, 28006, Madrid, Spain.
- Grupo de Investigación: Polímeros, Caracterización y Aplicaciones (POLCA, Associated Unit to CSIC), Madrid, Spain.
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6
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Li Y, Zhao L, Han C, Xiao L. Thermal and mechanical properties of stereocomplex polylactide enhanced by nanosilica. Colloid Polym Sci 2021. [DOI: 10.1007/s00396-021-04839-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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7
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Li Y, Li P, Wu M, Yu X, Naito K, Zhang Q. Halloysite nanotubes grafted polylactic acid and its composites with enhanced interfacial compatibility. J Appl Polym Sci 2021. [DOI: 10.1002/app.49668] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yuanyuan Li
- Hebei Key Laboratory of Functional Polymers, School of Chemical Engineering and Technology Hebei University of Technology Tianjin China
| | - Peixian Li
- Hebei Key Laboratory of Functional Polymers, School of Chemical Engineering and Technology Hebei University of Technology Tianjin China
| | - Minjie Wu
- Hebei Key Laboratory of Functional Polymers, School of Chemical Engineering and Technology Hebei University of Technology Tianjin China
| | - Xiaoyan Yu
- Hebei Key Laboratory of Functional Polymers, School of Chemical Engineering and Technology Hebei University of Technology Tianjin China
| | - Kimiyoshi Naito
- National Institute for Materials Science (NIMS) Tsukuba Japan
| | - Qingxin Zhang
- Hebei Key Laboratory of Functional Polymers, School of Chemical Engineering and Technology Hebei University of Technology Tianjin China
- Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology Hebei University of Technology Tianjin China
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8
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Chitosan nanoparticles based on their derivatives as antioxidant and antibacterial additives for active bioplastic packaging. Carbohydr Polym 2021; 257:117610. [PMID: 33541641 DOI: 10.1016/j.carbpol.2020.117610] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 12/23/2020] [Accepted: 12/30/2020] [Indexed: 02/07/2023]
Abstract
Chitosan nanoparticles (CSNPs) based on their different derivatives were proposed as antioxidant and antimicrobial additives for active bioplastic packaging. Chitosan was modified with polyethylene glycol methyl ether methacrylate (PEGMA), stearyl methacrylate (SMA) and deoxycholic acid (DC) using radiation-induced graft polymerization and chemical conjugation. The modified CSNPs-g-pPEGMA, CSNPs-g-pSMA and CSNPs-DC self-assembled into nanoparticles with the size in the range of 25-60 nm. The CSNPs-DC derivative has superior antioxidant activity and the CSNPs-g-pSMA derivative exhibited outstanding antibacterial activity against growth of E.coli (95.33 %). All modified CSNPs showed their capacities to inhibit S.aureus bacterial growth (>98 %). PLA packaging films containing CSNPs-g-pSMA inhibited the growth of natural microorganism on bread slices. Different chemical functions of the CSNPs derivatives provided different gas permeability and mechanical properties of the PLA films. The CSNPs derivatives would be promising antioxidant and antimicrobial additives for bioplastics to be further used as bio-based active food packaging.
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9
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Inphonlek S, Niamsiri N, Sunintaboon P, Sirisinha C. Chitosan/xanthan gum porous scaffolds incorporated with in-situ-formed poly(lactic acid) particles: Their fabrication and ability to adsorb anionic compounds. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.125263] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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10
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Properties of poly (l-lactic acid) reinforced by l-lactic acid grafted nanocellulose crystal. Int J Biol Macromol 2020; 156:314-320. [DOI: 10.1016/j.ijbiomac.2020.04.025] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2020] [Revised: 03/29/2020] [Accepted: 04/04/2020] [Indexed: 11/22/2022]
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11
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Zhu B, Bai T, Wang P, Wang Y, Liu C, Shen C. Selective dispersion of carbon nanotubes and nanoclay in biodegradable poly(ε-caprolactone)/poly(lactic acid) blends with improved toughness, strength and thermal stability. Int J Biol Macromol 2020; 153:1272-1280. [DOI: 10.1016/j.ijbiomac.2019.10.262] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 10/28/2019] [Accepted: 10/28/2019] [Indexed: 12/17/2022]
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12
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Bai T, Zhu B, Liu H, Wang Y, Song G, Liu C, Shen C. Biodegradable poly(lactic acid) nanocomposites reinforced and toughened by carbon nanotubes/clay hybrids. Int J Biol Macromol 2020; 151:628-634. [DOI: 10.1016/j.ijbiomac.2020.02.209] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 02/17/2020] [Accepted: 02/19/2020] [Indexed: 01/19/2023]
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13
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Sustainable Blends of Poly(propylene carbonate) and Stereocomplex Polylactide with Enhanced Rheological Properties and Heat Resistance. CHINESE JOURNAL OF POLYMER SCIENCE 2020. [DOI: 10.1007/s10118-020-2408-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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14
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Biodegradable blends of poly(butylene adipate-co-terephthalate) and stereocomplex polylactide with enhanced rheological, mechanical properties and thermal resistance. Colloid Polym Sci 2020. [DOI: 10.1007/s00396-020-04636-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Li Y, Han C, Yu Y, Huang D. Morphological, thermal, rheological and mechanical properties of poly (butylene carbonate) reinforced by stereocomplex polylactide. Int J Biol Macromol 2019; 137:1169-1178. [PMID: 31301391 DOI: 10.1016/j.ijbiomac.2019.07.068] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Revised: 07/09/2019] [Accepted: 07/09/2019] [Indexed: 12/17/2022]
Abstract
Fully biodegradable blends of poly (butylene carbonate) (PBC) and a bioresource-based stereocomplex polylactide (sc-PLA) were prepared by melt compounding at a temperature far below the melting point (Tm) of sc-PLA, and above the Tm of PBC, poly (l-lactide) (PLLA) and poly(d-lactide) (PDLA). sc-PLA was uniformly dispersed in the PBC matrix as spherical particles. Interestingly, the size of the dispersed sc-PLA particles did not increase significantly with increasing amounts of PLLA and PDLA. sc-PLA accelerated the non-isothermal and isothermal melt crystallization of PBC. Simultaneously, the thermal decomposition temperature of the PBC/sc-PLA blends increased by about 46 °C. The solid filler sc-PLA could reinforce the PBC matrix over a relatively wide temperature range. Consequently, formation of the percolation network structure of spherical sc-PLA in the blends significantly improved the rheological and mechanical properties of PBC after incorporation of sc-PLA. This report may open a new avenue to achieve higher-performance biodegradable polymer blend materials.
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Affiliation(s)
- Yi Li
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China; School of Materials Science and Engineering, Jilin Jianzhu University, Changchun 130118, China
| | - Changyu Han
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China.
| | - Yancun Yu
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China.
| | - Dexin Huang
- School of Materials Science and Engineering, Jilin Jianzhu University, Changchun 130118, China
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