Article
Polymer Science
Nonni Soraya Sambudi, Wai Yi Lin, Noorfidza Yub Harun, Dhani Mutiari
Summary: Traditional fossil-based plastic usage and disposal pose significant environmental concerns. Poly(lactic acid) (PLA) has gained attention as a safer alternative due to its renewable nature and low environmental cost. This study explores the potential use of orange peel waste in enhancing the PLA matrix. The addition of orange peel fine powder (OPP) improves the biodegradability of PLA and enhances its absorption in alkaline solution.
Article
Green & Sustainable Science & Technology
Jiao Li, Yingxiao Wang, Jun Lin, Ya Liu, Guilong Wang, Dong Quan, Yanjin Guan, Guoqun Zhao, Shengcheng Ji
Summary: In this study, a green ramie fiber reinforced Poly (lactic acid) composite foam was prepared using environmentally friendly CO2 as the foaming agent. The biodegradable ramie fiber not only retained the green nature of Poly (lactic acid), but also enhanced the foaming performance. The unique cavity structure of the plant fiber absorbed a large amount of CO2, promoting the solubility of CO2 in the composite and improving the crystallinity. The use of ramie fiber and CO2 resulted in the formation of regular and refined micropores in the foam structure.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Materials Science, Composites
Jianghu Zhan, Guilong Wang, Jiao Li, Yanjin Guan, Guoqun Zhao, Hakim Naceur, Daniel Coutellier, Jun Lin
Summary: In this study, the mechanical strength of PLA/ramie fiber composites was enhanced by adding a compatilizer or treating the fibers, resulting in improved adhesion ability, viscoelastic response, tensile, and flexural strengths of the composites.
COMPOSITES COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Chentao Li, Shiling Jia, Chengkai Liu, Hanlin Tian, Lijing Han, Dongmei Wang, Huiliang Zhang
Summary: Biodegradable PGLA fiber was used to reinforce sustainable composites based on PPC. The addition of PGLA fibers improved the mechanical properties and melt strength of PPC composites, while retaining its toughness at room temperature. However, the composites became brittle at lower temperatures. The incorporation of PGLA fibers also enhanced the interfacial adhesion between PPC and fibers and improved the vicat softening temperature of the composites.
COLLOID AND POLYMER SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Rong Wang, Xiaojie Sun, Lanlan Chen, Wenbin Liang
Summary: In this study, biodegradable blends of PGA and PBAT with in situ compatibilization using MDI were prepared. The addition of PBAT was found to increase the complex viscosity and storage modulus of the blends, leading to improved compatibility and impact strength. The morphology of the dispersed phase evolved from spherical structure to in situ microfiber, enhancing interfacial adhesion and improving toughness.
Article
Chemistry, Multidisciplinary
Honglei Kang, Xudong Jiang, Zhiwei Liu, Fan Liu, Guoping Yan, Feng Li
Summary: Biodegradable scaffolds based on biomedical polymeric materials were prepared using composite materials of PTMC/PLA/HA and PTMC/HA, showing low toxicity, good biodegradability, and biocompatibility while enhancing the cell multiplication ability of osteoblast cells.
Article
Polymer Science
Wachirabhorn Pongputthipat, Yupaporn Ruksakulpiwat, Pranee Chumsamrong
Summary: This study aims to develop sustainable and biodegradable biocomposite films using renewable and environmentally friendly materials. Different films containing poly(lactic acid), natural rubber, and rice straw were produced using the cast film extrusion method. The addition of rice straw fiber decreased the tensile properties of the films, but ductile fracture behavior was still observed with appropriate amounts. The degradation of the films increased with higher amounts of rice straw. The biocomposite films also showed potential for use in agricultural products like planting bags.
Article
Polymer Science
Yejin Park, Jonghwi Lee
Summary: A PLA/FP composite foam was prepared by infiltrating PLA solution into a cellulose foam formed by melt crystallization method. The composite foam showed improved mechanical properties and thermal stability, and has potential applications as insulation and cushioning materials.
Article
Chemistry, Physical
Seung-Woon Baek, Duck Hyun Song, Ho In Lee, Da-Seul Kim, Yun Heo, Jun Hyuk Kim, Chun Gwon Park, Dong Keun Han
Summary: The study improved the mechanical and biological properties of PLLA/MH composites by grafting OLCL onto MH, reducing platelet adhesion, cytotoxicity, and inflammatory responses. This offers a new approach for the application of biomedical materials.
Article
Materials Science, Multidisciplinary
Gutian Zhao, Xin Li, Yuan Tian, Gensheng Wu, Yi Zhang, Wei Jiang, Juekuan Yang, Zhonghua Ni
Summary: This study investigates the use of PLLA monofilaments for braided carotid stents, characterizing the properties of the monofilaments and demonstrating that the braided PLLA stents have good mechanical properties and can provide adequate support.
JOURNAL OF MATERIALS SCIENCE
(2021)
Review
Polymer Science
Maria Laura Di Lorenzo
Summary: PLLA and PBS are biodegradable, compostable, and biocompatible polymers that have complementary properties, making blending them an opportunity to exploit their favorable characteristics. However, research on the properties of PLLA/PBS blends has yielded contradictory results, creating complexity in their utilization.
Article
Materials Science, Textiles
Gosa Guta Dabi, Yeshi Tadesse Wakjira, Hermela Ejegu Feysa, Wondwossen Mamuye Abebe
Summary: In this study, the development and characterization of a multi-layered laminated fibre reinforced bio-composite from nettle and PLA fiber were performed. The influence of chemical treatment on the property of nettle fibers was investigated, and the physical and mechanical properties of the nettle/PLA bio-composite were analyzed. The results showed that the treated fiber improves tensile strength and has a lower water uptake ability compared to untreated fiber.
JOURNAL OF INDUSTRIAL TEXTILES
(2022)
Article
Polymer Science
Roberto J. Aguado, Gabriela A. Bastida, Francisco X. Espinach, Joan Llorens, Quim Tarres, Marc Delgado-Aguilar, Pere Mutje
Summary: This study investigated the incorporation of natural hemp fibers into a poly(lactic acid) matrix to create fully bio-sourced composites. The tensile modulus of the composites linearly increased with the volume fraction of the dispersed fibers, reaching a maximum value of 7.6 Gpa. The performance of the soda-bleached fibers as reinforcement was found to be higher than that of glass fibers, despite their lower intrinsic tensile modulus.
Article
Nanoscience & Nanotechnology
Lv Ke, Ting Yang, Chenyu Liang, Xin Guan, Tian Li, Yang Jiao, Daoyuan Tang, Donghui Huang, Shihang Li, Shenghui Zhang, Xinjian He, Huan Xu
Summary: In this study, electroactive and antibacterial poly(lactic acid) nanofibrous membranes (NFMs) were fabricated using a facile method. Microwave-assisted doping was employed to produce zinc-doped titanium dioxide nanoparticles, which greatly improved the properties of the PLA nanofibers. The composite NFMs showed enhanced filtration performance and antibacterial activity compared to pure PLA, making them promising for healthcare applications.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Dan Xu, Yujing Pan, Zhihao Du, Zhu-Bao Shao, Jianhui Qiu, Longxiang Zhu
Summary: Propionate cellulose (CP) derived from rice straw was successfully prepared and incorporated into poly-(lactic acid) (PLA) to create biodegradable composite fibers. The addition of a small amount of CP significantly improved the strength and modulus of the fibers, with further improvement after stretching. After five months of natural degradation, the composite fibers showed low mass loss rates below 3%.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)