聚乳酸共混的研究进展  

Research Progress of Polylactic Acid Blending

作　　者：黄爱宾[1] 刘彩凤[1] 张晓惠[1] HUANG Aibin;LIU Caifeng;ZHANG Xiaohui(Green Packaging Laboratory,Hangzhou Dianzi University,Hangzhou 310018,China)

机构地区：[1]杭州电子科技大学绿色包装实验室,杭州310018

出　　处：《材料导报》2020年第S02期586-589,共4页Materials Reports

基　　金：浙江省自然科学基金(Y4090224)。

摘　　要：聚乳酸是一种生物可降解的脂肪族聚酯,其强度、刚度、气体渗透性等性能可与传统的石油基合成聚合物相媲美。然而,由于其生物降解速率慢、生产成本高、韧性差等缺点,近年来人们尝试采用共混技术来获取其最优性能,已发展出许多新的共混物。本综述总结了近年来的一些研究进展,列举了聚乳酸与生物可降解材料、非生物降解材料的共混相容性研究,以及共混后的生物降解性、机械强度等,以期获得启示,为未来开发新型聚乳酸共混物提供指导方向。Poly(lactic acid)(PLA)is a biodegradable thermoplastic.With low elongation and poor degradation properties,many approaches have been developed to overcome these limitations,including copolymerization,blending and plasticizing to improve the mechanical properties.The modification of PLA using the polymer blending technique to achieve suitable properties for different applications has been receiving significant attention over the past few years.Hence,the aim of this work is to summarize the current developments regarding the preparation and properties of PLA polymer blends.In this review,the recent advances in PLA preparation are broadly introduced.In addition,the miscibility and compatibilization strategies of PLA polymer blends are discussed.The preparations and characterizations of PLA blends with both biodegradable and nonbiodegradable polymers are outlined.Finally,the biodegradation,mechanical properties,and potentiality of PLA blends are presented.

关 键 词：聚乳酸 共混 降解性 力学性能 

分 类 号：TQ31[化学工程—高聚物工业]