Effect of multi-walled carbon nanotubes on the crystallization and hydrolytic degradation of biodegradable Poly(L-lactide)

被引：91

作者：

Zhao, Yuanyuan ^{[1
]}

Qiu, Zhaobin ^{[1
]}

Yang, Wantai ^{[1
]}

机构：

[1] Beijing Univ Chem Technol, State Key Lab Chem Resource Engn, Beijing 100029, Peoples R China

来源：

COMPOSITES SCIENCE AND TECHNOLOGY | 2009年 / 69卷 / 05期

关键词：

Carbon nanotubes; Nanocomposite; Thermal properties; DSC; SEM; GLASS-FORMING MELTS; MECHANICAL-PROPERTIES; CATALYZED NUCLEATION; NANOCOMPOSITES; COMPOSITES; BLENDS; CONDUCTIVITY; COPOLYMERS; KINETICS; MISCIBILITY;

D O I：

10.1016/j.compscitech.2008.12.008

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

Biodegradable Poly(L-lactide) (PLLA)/carboxyl-functionalized multi-walled carbon nanotubes (f-MWNTS) nanocomposites were prepared via solution blending. Scanning electron microscopy observations reveal a fine dispersion of f-MWNTs in the PLLA matrix. The presence of f-MWNTs enhances the crystallization of PLLA in the nanocomposites compared with that of neat PLLA; moreover, the overall crystallization rate of PLLA increases with increasing the f-MWNTs content in the PLLA matrix. The incorporation of f-MWNTs improves the storage modulus of the PLLA/f-MWNTs nanocomposites, with this effect being more pronounced at lower f-MWNTs content. The exciting aspect of this research is the enhanced hydrolytic degradation of PLLA after nanocomposites preparation with f-MWNTs, which may be of great interest for its wide practical application. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：627 / 632

页数：6

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