Nonisothermal Crystallization Kinetics of Poly(lactic acid) Nucleated with a Multiamide Nucleating Agent

被引：33

作者：

Xu, Ting ^{[1
]}

Wang, Yaming ^{[1
]}

Han, Qian ^{[1
]}

He, Dongran ^{[1
]}

Li, Qian ^{[1
]}

Shen, Changyu ^{[1
]}

机构：

[1] Zhengzhou Univ, Natl Engn Res Ctr Adv Polymer Proc Technol, Key Lab Adv Mat Proc & Mold, Minist Educ, Zhengzhou 450002, Peoples R China

来源：

JOURNAL OF MACROMOLECULAR SCIENCE PART B-PHYSICS | 2014年 / 53卷 / 10期

基金：

中国国家自然科学基金;

关键词：

biodegradable; Nonisothermal crystallization kinetics; nucleating agent; Poly(lactic acid); POLY(L-LACTIC ACID); ISOTHERMAL CRYSTALLIZATION; MELT-CRYSTALLIZATION; BEHAVIOR; NANOCOMPOSITES; POLYLACTIDE; COMPOSITES; MORPHOLOGY; POLY(ETHYLENE-TEREPHTHALATE); TEMPERATURE;

D O I：

10.1080/00222348.2014.910049

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Addition of a commercial availablemultiamide compound (N, N', N ''-tricyclohexyl-1,3,5-benzenetricarboxylamide, defined here as TMC) into ecofriendly poly(lactic acid) (PLA) can accelerate the crystallization rate of the material remarkably and broaden its applications. In this paper, the nonisothermal crystallization behavior of biodegradable PLA nucleated by 0.3 wt.% of TMC was investigated by differential scanning calorimetry (DSC). The modified Avrami, Tobin, Ozawa, and Mo models were applied to describe the kinetics of the crystallization process. Various parameters of nonisothermal crystallization, such as the crystallization half-time and crystallization rate constant, reflected that TMC significantly accelerated the crystallization process. The activation energy values of the neat PLA and PLA/TMC blend, determined by the Kissinger method, increased with the addition of TMC. The study should be helpful for understanding the relationship between processing and properties of this material.

引用

页码：1680 / 1694

页数：15

共 52 条

[1] Non-isothermal melt-crystallization kinetics of poly(trimethylene terephthalate) [J].