聚乳酸/热塑性淀粉多组分生物可降解共混物研究进展  

Recent Advances in Poly(lactic acid)/Thermoplastic Starch Multicomponents Biodegradable Blends

作　　者：寇志敏[1] KOU Zhimin(Library of Hubei university of technology,W uhan,Hubei 430068,China)

机构地区：[1]湖北工业大学图书馆,湖北武汉430068

出　　处：《塑料》2020年第4期115-119,共5页Plastics

摘　　要：全生物基聚乳酸/淀粉生物可降解材料,同时具有聚乳酸(PLA)的高性能和淀粉(TPS)的低成本,是近年来受到广泛关注的全生物降解高分子体系。由于淀粉具有较强的亲水性,与PLA基体难以相容,使界面的黏附性较差,导致材料的性能恶化;PLA/TPS共混物体系研究的焦点主要是通过改善组分的界面相容性,提高共混物的力学性能。文章对聚乳酸/热塑性淀粉(PLA/TPS)共混物的制备和性能进行介绍,对PLA/TPS二元共混物的力学性能进行了概述,主要总结了增塑剂、无机粒子对PLA/TPS共混物界面结构和力学性能的影响,详细阐述了接枝(嵌段)共聚物、小分子化合物增容PLA/TPS共混物多组分体系的研究进展。高性能聚乳酸/淀粉生物可降解多组分共混物是一种极具开发前景的新型生物可降解塑料。Fully-biobased poly(lactic acid)/thermoplastic starch(PLA/TPS) biodegradable material with both high performance of PLA and low cost of starch is a new biodegradable polymer system which has been receiving significant attention over the past few years.Due to the strong hydrophilicity of starch,it is difficult for starch to be compatible with PLA matrix,which results in poor interfacial adhesion and deterioration of the performances of PLA/TPS blends.The research focus of PLA/TPS blends is to improve the mechanical properties of blends by improving the interfacial compatibility of components.In this review,the preparation and properties of poly(lactic acid)/thermoplastic starch blends(PLA/TPS) were outlined.The mechanical properties of PLA/TPS binary blends were broadly introduced.The effects of plasticizers and inorganic particles on the structure and properties of PLA/TPS blends were summarized.In addition,the research progress regarding PLA/TPS multi-components blends compatibilized by graft(block) copolymer,small molecule compounds were described in detail.High performance PLA/TPS biodegradable multi-component blend is a new biodegradable plastic with great development prospect.

关 键 词：聚乳酸 热塑性淀粉 多组分共混物 全生物基 生物可降解 

分 类 号：TQ323.4[化学工程—合成树脂塑料工业]