聚乳酸立构复合晶的制备与性能研究进展  

Research progress on preparation and properties of SC-PLA

作　　者：王仕通 黄凯 刘祥 常宝宝 WANG Shitong;HUANG Kai;LIU Xiang;CHANG Baobao(National Engineering Research Center for Advanced Polymer Processing Technology,Zhengzhou University,Zhengzhou 450002,China)

机构地区：[1]郑州大学橡塑模具国家工程研究中心,河南郑州450002

出　　处：《合成树脂及塑料》2025年第1期80-86,共7页China Synthetic Resin and Plastics

基　　金：国家自然科学基金(52003249);国家重点研发计划(2019YFA0706802)。

摘　　要：综述了聚乳酸立构复合晶(SC-PLA)的制备方法、耐热性能和力学性能等方面的研究进展,提出了未来SC-PLA可能的研究方向。通过调控左旋聚乳酸(PLLA)与右旋聚乳酸(PDLA)共混物的相对含量和共混温度可以促进立构复合晶(SC)的形成,通过固态拉伸和交联等工艺可以制备具有定向或特定结构的SC-PLA。然而,在这些改性基础上,不仅要防止PLLA/PDLA共混物相分离对SC的形成所产生的负面影响,还应避免添加剂对聚乳酸原有优异性能的破坏。The research progress on the preparation methods,heat resistance,and mechanical properties of stereocomplex crystal of poly(lactic acid)(SC-PLA)is reviewed,and the possible future research direction of SC-PLA is proposed.The formation of stereocomplex crystal(SC)can be promoted by regulating the relative content and the blending temperature of poly(L-lactide)(PLLA)and poly(D-lactide)(PDLA)mixtures.SC-PLA with an oriented or specific structure can be prepared via solid-state stretching and cross-linking.However,on the basis of these modifications,it is necessary not only to prevent the negative effects of phase separation of PLLA/PDLA blend on the formation of SC,but also to avoid the destruction of the original excellent properties of poly(lactic acid)by additives.

关 键 词：聚乳酸立构复合晶 制备方法 结晶性能 交联 耐热性能 

分 类 号：TQ320.6[化学工程—合成树脂塑料工业]