无机填料对聚乳酸成型加工性能的影响  

Effect of Inorganic Filler on Processability of Poly(lactic acide)

作　　者：周鹏[1] 张兴振[1] 吴智华[1] 

机构地区：[1]四川大学高分子科学与工程学院,四川成都610065

出　　处：《塑料工业》2007年第10期60-63,共4页China Plastics Industry

摘　　要：研究了滑石粉、硅藻土、白炭黑填充聚乳酸材料的热稳定性、熔化特性及流变行为等成型加工性能。结果表明,无机填料对复合材料的热稳定性几乎没有影响,但填料的加入使PLA冷结晶温度向低温方向移动,PLA及其填充体系熔体流变特性属假塑性流动行为,黏度随温度变化明显。The effects of talcum powder, diatomite and white carbon black on the thermal stability, melting and rheological characteristic of Poly（lactic acid）（PLA）were studied. The results showed inorganic fillers had no effect on the thermal stability of PLA composite, but made the cold crystallization temperature of PLA composites got lower. The melt rheological characteristics of PLA and its composite with inorganic fillers were of pseudoplastic characteristics, and the apparent viscosity changed with the change of temperature obviously.

关 键 词：聚乳酸 填料 成型加工性能 

分 类 号：TQ320[化学工程—合成树脂塑料工业]