增韧改性聚乳酸基生物降解材料研究进展  

Research Progress in Toughening Modified Polylactic Acid Based Biodegradable Materials

作　　者：王晓珂 冯冰涛 殷茂峰 张萌 张信 孙国华 马劲松[1] 侯连龙 WANG Xiao-ke;FENG Bing-tao;YIN Mao-feng;ZHANG Meng;ZHANG Xin;SUN Guo-hua;MA Jin-song;HOU Lian-long(Hebei Key Laboratory of Flexible Functional Materials,School of Materials Science and Engineering,Hebei University of Science and Technology,Shijiazhuang 050018,China)

机构地区：[1]河北科技大学材料科学与工程学院河北省柔性功能材料重点实验室,河北石家庄050018

出　　处：《塑料科技》2023年第12期88-93,共6页Plastics Science and Technology

基　　金：河北省重点研发计划项目(20311201D,21314401D,21374901D,19212108D)。

摘　　要：聚乳酸(PLA)具有良好的力学性能和生物降解性,对可持续发展和低碳环保具有重要意义。但是PLA脆性大、韧性差,限制其广泛使用。考虑到用石油基材料增韧PLA会降低其降解性,可采用对降解性无影响或可再生材料增韧PLA。文章综述了PLA基生物降解材料增韧改性方法的研究进展,主要从化学改性、物理改性和复合改性等角度进行介绍,概述了增韧方法的定义、国内外研究的优缺点以及改进方法,为生物降解PLA的增韧改性提供参考。指出开发绿色环保的改性方法、降低成本、寻找相容性好和可生物降解的单体是PLA基生物降解材料增韧改性未来研究方向。Polylactic acid(PLA)has good mechanical properties and biodegradability,which are of great significance for sustainable development and low-carbon environmental protection.However,PLA has high brittleness and poor toughness,which limit its wide application.Considering that the use of petroleum-based materials to toughen PLA will reduce its degradability,PLA can be toughened by non-degradable or renewable materials.The research progress of toughening modification methods of PLA-based biodegradable materials is reviewed,mainly from the perspectives of chemical modification,physical modification,and composite modification.The definition of toughening methods,the advantages and disadvantages of research at home and abroad,and the improvement methods are summarized,providing a reference for the toughening modification of biodegradable PLA.It is pointed out that the future research direction of toughening modification of PLA-based biodegradable materials is to develop green and environmentally friendly modification methods,reduce costs,and search for monomers with good compatibility and biodegradability.

关 键 词：聚乳酸 增韧方法 全生物降解材料 化学改性 物理改性 

分 类 号：TQ323.4[化学工程—合成树脂塑料工业]