Thermal properties and crystallization behavior of thermoplastic starch/poly(ε-caprolactone) composites

被引：58

作者：

Cai, Jie ^{[1
,2
,3
]}

Xiong, Zhouyi ^{[1
]}

Zhou, Man ^{[1
,2
]}

Tan, Jun ^{[1
]}

Zeng, Fanbing ^{[4
]}

MeihuMa ^{[1
]}

Lin, Shun ^{[1
,2
]}

Xiong, Hanguo ^{[1
,2
]}

机构：

[1] Huazhong Agr Univ, Coll Food Sci & Technol, Wuhan 430070, Peoples R China

[2] Huazhong Agr Univ, Res Inst Comprehens Utilizat Biomat, Wuhan 430070, Peoples R China

[3] Deakin Univ, Inst Frontier Mat, Geelong, Vic 3220, Australia

[4] Huazhong Agr Univ, Coll Sci, Wuhan 430070, Peoples R China

来源：

CARBOHYDRATE POLYMERS | 2014年 / 102卷

基金：

中国国家自然科学基金;

关键词：

Thermoplastic starch; Poly(epsilon-caprolactone); Thermal properties; Crystallization behavior; NONISOTHERMAL CRYSTALLIZATION; MECHANICAL-PROPERTIES; POLY(LACTIC ACID); STARCH COMPOSITES; PHASE-CHANGE; KINETICS; BLEND; BIODEGRADATION; MORPHOLOGY; FILMS;

D O I：

10.1016/j.carbpol.2013.10.095

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

TPS/PCL composites were prepared by PCL melt blending with modified corn starch. The structure, thermal properties, morphology and crystallization behavior of these composites were investigated by FTIR, TGA, SEM, XRD and DSC. FTIR confirmed the existence of the interaction between PCL and TI'S, whereas TGA showed that the thermal stability was decreased by the addition of TPS. Meanwhile, SEM showed a weak interfacial adhesion with increasing TPS. According to the Avrami theory, TPS functioned as a nucleating agent to improve the crystallinity rate of PCL. However, the XRD analysis revealed that the crystallinity decreased. At the same time, the Delta E-a of the composites was higher than those of neat PCL. These changes in values all indicated that mobility constraints existed in the PCL chains with the increasing of TPS, which leaded to a drop in the crystallization ability of PCL. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：746 / 754

页数：9

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