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聚L-乳酸的热性能研究

李顺江 蔡艳华

塑料科技2012,Vol.40Issue(1):80-83,4.
塑料科技2012,Vol.40Issue(1):80-83,4.

聚L-乳酸的热性能研究

Study on Thermal Properties of Poly(L-lactic acid)

李顺江 1蔡艳华1

作者信息

  • 1. 重庆文理学院材料学院,重庆402160
  • 折叠

摘要

Abstract

The non-isothermal crystallization behavior, melting behavior and thermal gravimetric progress of poly(L-lactic acid) (PLLA) were investigated in order to obtain the structure characteristics and control the processing technology of PLLA. The results show that the non-isothermal crystallization process of PLLA Is affected by cooling rate, the oneset temperature of crystallization for PLLA is 121°C , and the crystallization enthalpy is 3.363 J/g; the double-melting peaks of PLLA result from melting-recrystallizatlon; the thermal decomposition temperature of PLLA is about 300 c , which increases with the increase of heating rate.

关键词

聚L-乳酸/热性能/结晶行为/熔融行为

Key words

Poly(L-lactic acid)/ Thermal property/ Crystallization behavior/ Melting behavior

分类

化学化工

引用本文复制引用

李顺江,蔡艳华..聚L-乳酸的热性能研究[J].塑料科技,2012,40(1):80-83,4.

基金项目

四川省科技厅重点攻关项目(N02006202-025) (N02006202-025)

塑料科技

OA北大核心CSTPCD

1005-3360

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