SiO_2/复合稳定剂/PLA复合材料的性能研究  

Properties of SiO_2/Composite Stabilizer/PLA Composites

作　　者：邵将[1] 邬昊杰 刘一鸣[1] 陈弦[2] Shao Jiang Wu Haojie Liu Yiming Chen Xian(College of Polymer Scienee and Engineering, Siehuan University, Chengdu, Sichuan, 610064 College of Chemistry, Siehuan University, Chengdu,Sichuan, 610065)

机构地区：[1]四川大学高分子科学与工程学院,四川成都610064 [2]四川大学化学学院,四川成都610065

出　　处：《现代塑料加工应用》2016年第4期4-6,共3页Modern Plastics Processing and Applications

摘　　要：通过熔融共混工艺制备了SiO_2/复合稳定剂/聚乳酸(PLA)复合材料。利用热失重分析(TGA)和差示扫描量热仪(DSC)探究了未改性的PLA和SiO_2/复合稳定剂/PLA复合材料的热稳定性能。结果表明,PLA的热稳定性可以通过添加SiO_2和复合稳定剂来提升;SiO_2/复合稳定剂对PLA结晶几乎没有影响;SiO_2和复合稳定剂改善了PLA的成型加工性能,且复合材料具有较高的拉伸强度和模量。SiO2/composite stabilizer/PLA composites were prepared by melt-mixing process. Thermostability of unmodified PLA and SiO2/composite stabilizer/PLA compos ites was explored by using thermal gravity analysis （TGA） and differential scanning calorimeter （DSC）. The results show that thermostability of PLA can be improved by adding SiO2/composite stabilizer;and SiO2/composite stabilizer has no influence on PLA crystallization. SiO2 and composite stabilizer improve molding processing properties of PLA,and tensile strength and modulus of the composites are high.

关 键 词：聚乳酸 二氧化硅 热稳定性 复合材料 

分 类 号：TB332[一般工业技术—材料科学与工程]