摘要
聚乳酸是环保型高分子材料,但它在自然环境中的水解速率非常缓慢且是否能完全降解尚存争议。随着全球聚乳酸产量的日益增加,聚乳酸对水环境的潜在污染逐渐加剧,有关聚乳酸的水解机理及其改进方法是目前的研究热点。介绍了近年来聚乳酸及聚乳酸基复合材料的水解机理及改进方法的最新研究成果,分析了影响聚乳酸水解速率的相关因素和聚乳酸水解的可控性,总结了国内外聚乳酸水解性能的改进方法及其研究进展,为下一步改进聚乳酸基材料的水解性能提供了参考。
Polylactic acid(PLA)is an environmental friendly polymer material.However,the hydrolysis rate of PLA in natural environment is very low and whether it can be completely degraded in water is still controversial.With the increase of PLA production in the world,the potential pollution to water environment is more and more sever.As a result,the hydrolysis mechanism of PLA and its improvement methods become the focus of current research.The recent research results on the hydrolysis mechanism and improvement methods of PLA and PLA based composites were summarized.The factors affecting the PLA hydrolysis rate and the controllability of PLA hydrolysis were analyzed.The improvement methods and latest progress of PLA hydrolysis were summarized so as to provide guidance for improving the hydrolytic properties of PLA based composites.
作者
任永琳
王达
刘合
周福建
姚二冬
潘定成
Ren Yonglin;Wang Da;Liu He;Zhou Fujian;Yao Erdong;Pan Dingcheng(COSL Middle East FZE(Iraq Branch),Missan 61001,Iraq;Unconventional Oil and Gas Insitute of Scienceand Technology,China University of Petroleum(Beijing),Beijing 102249,China;Research Institute of Petroleum Exploration and Development,CNPC,Beijing 100083,China)
出处
《石油化工》
CAS
CSCD
北大核心
2022年第9期1129-1136,共8页
Petrochemical Technology
基金
国家科技重大专项(ZX20170076)。
关键词
聚乳酸
水解
机理
共聚
复合改性
polylactic acid
hydrolysis
mechanism
copolymerization
composite modification
