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Review

A Review: Research Progress in Modification of Poly (Lactic Acid) by Lignin and Cellulose

1
College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China
2
Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics, Beijing Technology and Business University, Beijing 100048, China
*
Authors to whom correspondence should be addressed.
Academic Editors: Balázs Imre and Alexey Iordanskii
Polymers 2021, 13(5), 776; https://doi.org/10.3390/polym13050776
Received: 7 February 2021 / Revised: 19 February 2021 / Accepted: 26 February 2021 / Published: 3 March 2021
(This article belongs to the Special Issue Design and Modification of Bio-Based Polymers, Blends and Composites)
With the depletion of petroleum energy, the possibility of prices of petroleum-based materials increasing, and increased environmental awareness, biodegradable materials as a kind of green alternative have attracted more and more research attention. In this context, poly (lactic acid) has shown a unique combination of properties such as nontoxicity, biodegradability, biocompatibility, and good workability. However, examples of its known drawbacks include poor tensile strength, low elongation at break, poor thermal properties, and low crystallization rate. Lignocellulosic materials such as lignin and cellulose have excellent biodegradability and mechanical properties. Compounding such biomass components with poly (lactic acid) is expected to prepare green composite materials with improved properties of poly (lactic acid). This paper is aimed at summarizing the research progress of modification of poly (lactic acid) with lignin and cellulose made in in recent years, with emphasis on effects of lignin and cellulose on mechanical properties, thermal stability and crystallinity on poly (lactic acid) composite materials. Development of poly (lactic acid) composite materials in this respect is forecasted. View Full-Text
Keywords: poly (lactic acid) (PLA); lignin; cellulose; nanocellulose; microcrystalline cellulose; composite materials; modification poly (lactic acid) (PLA); lignin; cellulose; nanocellulose; microcrystalline cellulose; composite materials; modification
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MDPI and ACS Style

Zhai, S.; Liu, Q.; Zhao, Y.; Sun, H.; Yang, B.; Weng, Y. A Review: Research Progress in Modification of Poly (Lactic Acid) by Lignin and Cellulose. Polymers 2021, 13, 776. https://doi.org/10.3390/polym13050776

AMA Style

Zhai S, Liu Q, Zhao Y, Sun H, Yang B, Weng Y. A Review: Research Progress in Modification of Poly (Lactic Acid) by Lignin and Cellulose. Polymers. 2021; 13(5):776. https://doi.org/10.3390/polym13050776

Chicago/Turabian Style

Zhai, Sixiang, Qingying Liu, Yuelong Zhao, Hui Sun, Biao Yang, and Yunxuan Weng. 2021. "A Review: Research Progress in Modification of Poly (Lactic Acid) by Lignin and Cellulose" Polymers 13, no. 5: 776. https://doi.org/10.3390/polym13050776

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