聚乳酸基生物可降解材料的相容性  

Compatibilization Strategies of PLA-Based Biodegradable Materials

作　　者：丁跃 卢波[2] 季君晖[2] Yue Ding;Bo Lu;Junhui Ji(School of Material and Chemical Engineering,Xuzhou University of Technology,Xuzhou 221111,China;National Engineering Research Center of Engineering Plastics,Technical Institute of Physics and Chemistry,Chinese Academy of Sciences,Beijing 100190,China)

机构地区：[1]徐州工程学院,材料与化学工程学院,徐州221111 [2]中国科学院理化技术研究所国家工程塑料研究中心,北京100190

出　　处：《化学进展》2020年第6期738-751,共14页Progress in Chemistry

摘　　要：随着能源危机和环境污染的日益严重,生物可降解塑料逐渐成为研究的趋势和热点。聚乳酸(PLA)具有良好的生物降解性、生物相容性、可再生性、高强度、易加工等优点,被认为是最有前途的生物降解聚合物之一。聚乳酸的延展性和冲击性能较差严重制约了PLA的应用,共混改性是一种经济有效的方法,从而解决其韧性不足的缺点。然而,PLA在热力学上与大多数聚合物不相容,为了获得性能优良的PLA共混材料,聚合物共混过程中需要加入一种有效的相容剂进行增容。近年来,PLA与不同聚合物共混时的相容性研究已取得一定进展,本文就其进展进行全面综述。With the energy crisis and environmental pollution,biodegradable polymers have attracted considerable interest because these compounds are environmentally friendly and renewable.Poly(lactic acid)(PLA)is considered as one of the most promising biodegradable polymers because of its excellent biocompatibility,biodegradability,easy processability and high strength.However,its poor ductility and impact properties seriously restrict the application.Polymer blending is an economical and effective way to solve the shortcomings.Unfortunately,PLA is thermodynamically immiscible with most polymers.It has been established that the compatibilization is a famous strategy to improve the miscibility of the blends by enhancing the adhesion between the phases.Thus,recent studies focus on various compatibilizers to obtain excellent performance of PLA-based blends.This review summarizes the recent development in compatibilization strategies applied to PLA-based blends.

关 键 词：聚乳酸 共混物 相容 界面张力 可混合性 

分 类 号：O633.14[理学—高分子化学] O633.5[理学—化学]