聚乳酸无机成核剂的研究进展  

Research Process in Inorganic Nucleating Agent of Poly(L-lactic acid)

作　　者：蔡艳华[1] 

机构地区：[1]重庆文理学院材料与化工学院,永川402160

出　　处：《材料导报》2012年第11期75-78,共4页Materials Reports

基　　金：四川省科技厅重点攻关项目(2006Z02-025);重庆文理学院校级科研项目(Z2011CL11)

摘　　要：聚乳酸已然成为生物可降解塑料领域的主导品种,但仍存在结晶速率慢、耐热性差等缺陷,尤其是结晶速率慢严重制约其发展。无机物由于价格低廉、来源广泛已被广泛应用于提高聚乳酸的结晶速率。对此,概述了无机物提高聚乳酸结晶速率的理论基础,重点综述了无机物尤其是层状硅酸盐对提高聚乳酸结晶速率的研究进展,并展望了聚乳酸无机成核剂以后的发展方向。Poly（L-lactic acid） （PLLA）is mare biodegradable plastics. However, PLLA sun has some alsaavantages, such as slow crystallization rate, poor heat resistance, and so on. Especially, slow crystallization rate of PLLA has restricted its industrial production and practical applications. Due to low prices and abundant source, inorganic compounds are widely used to improve the crystallization rate of PLLA. Thus, the theory on enhancement of crystallization rate of PLLA is reviewed, the improvement of crystallization rate of PLLA by adding inorganic compounds is summarized. The research work of inorganic nucleating agent in the future is predicted.

关 键 词：聚乳酸 生物降解塑料 结晶速率 无机成核剂 

分 类 号：TQ323.4[化学工程—合成树脂塑料工业]