“核-壳”结构增强增韧聚乳酸机理研究  

Reinforcing and Toughening Mechanism of Core-shell Structure in Poly (lactic acid) Composite

作　　者：王美珍[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：《塑料科技》2008年第1期44-48,共5页Plastics Science and Technology

摘　　要：研究了滑石粉和硅藻土与增韧复配体系并用增韧聚乳酸(PLA)复合材料的机理。结果表明,颗粒状硅藻土与增韧复配体系形成的"核-壳"结构比非"核-壳"的多相共混结构对PLA有优良的增韧效果,而片状滑石粉填充体系则相反,其非"核-壳"的多相共混结构材料具有较好的韧性。The reinforcing and toughening mechanism of poly（lactic acid） composite filled by talcum powder or diatomita combined with toughener compound was investigated. The results indicate that the toughening effect of the core,shell structure formed by granular diatomite and toughener compound on PLA is better than that ~ non-core-shell structure of multi.phase blend, on the contrary, the toughening effect of sheet talcum powder filling system with non- core-shell structure is better.

关 键 词：聚乳酸 无机填料 增韧剂 增强增韧 “核-壳”结构 

分 类 号：TQ327.1[化学工程—合成树脂塑料工业]