左旋聚乳酸/热塑性弹性体/纳米填料三元共混物的研究进展  

Research progress of poly(L-lactide)/thermoplastic elastomer/nanofiller blend

作　　者：徐朝华[1] 李珩[1] Xu Zhaohua;Li Heng(Department of Material Technology,Jiangmen Polytechnic,Jiangmen 52909)

机构地区：[1]江门职业技术学院材料技术系,江门529090

出　　处：《化工新型材料》2018年第4期20-22,26,共4页New Chemical Materials

基　　金：国家自然科学基金(51302107);广东省自然科学基金(2015A030313804);广东省高等学校优秀青年教师培养计划(YQ2015225和YQ2015226);绿色功能材料创新平台(江财工[2016]143)

摘　　要：左旋聚乳酸(PLLA)是一种生物可降解材料,具有较高的强度和刚性,但脆性大的缺点限制了PLLA的应用。简述了PLLA/热塑性弹性体(TPE)/纳米填料三元共混物的研究进展,通过添加小分子增塑剂或热塑性弹性体改性PLLA的脆性,进一步就三元共混体系特别是共混物的相容性进行了介绍,对三元共混物在结晶性能、流变性能及TPE合成方面的发展方向提出了几点建议。As a biorenewable, biodegradable and biocompatible polyester, poly （L-lactide）（PLLA） possesses high modulus and stiffness. However, neat PLLA exhibits inherent brittleness and weak notched impact strength, which has been a major drawback for its large-scale commercial applications. The research progress of PLLA, thermoplastic elastomer （TPE） and nanofillers （NFs） ternary blends was reviewed. The modification of PLA with small molecules plasticizer and TPE,the phase behavior of PLLA blending with TPE and NF was also further clarified.The rheological property, crystallization property and TPE synthesis of PLLA/TPE/NFs ternary blends system were three development ways, some suggestions for which were put forwarded at finally.

关 键 词：左旋聚乳酸 碳纳米管 热塑性弹性体 进展 

分 类 号：TQ323.41[化学工程—合成树脂塑料工业] TQ334