Organically modified rectorite toughened poly(lactic acid): Nanostructures, crystallization and mechanical properties

被引：80

作者：

Li, Bo ^{[1
]}

Dong, Feng-Xia ^{[1
]}

Wang, Xiu-Li ^{[1
]}

Yang, Juan ^{[1
]}

Wang, De-Yi ^{[1
]}

Wang, Yu-Zhong ^{[1
]}

机构：

[1] Sichuan Univ, Ctr Degradable & Flame Retardant Polymer Mat, ERCEPM MoE, Coll Chem,State Key Lab Polymer Mat Engn, Chengdu 610064, Peoples R China

来源：

EUROPEAN POLYMER JOURNAL | 2009年 / 45卷 / 11期

基金：

美国国家科学基金会;

关键词：

Poly(lactic acid); Nanocomposite; Crystallization; Mechanical properties; POLYLACTIDE/LAYERED SILICATE NANOCOMPOSITES; LACTIC-ACID; CALCIUM-CARBONATE; COMPOSITES; BEHAVIOR; MORPHOLOGY; ELASTOMER;

D O I：

10.1016/j.eurpolymj.2009.08.015

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

To improve the toughness of PIA, poly(lactic acid) (PLA)/organically modified rectorite (OREC) nanocomposites were prepared via the melt-extrusion method. A partially exfoliated and partially intercalated structure was confirmed by WAXD and TEM. The crystallization behaviors of neat PLA and nanocomposite were studied by POM and DSC, and it was found that OREC had a great effect on the overall crystallization rate and spherulitic texture of PLA. The presence of OREC could toughen PLA greatly. For example, when 1 wt.% OREC was added, the elongation at break of the nanocomposite was increased to 210%. The toughening mechanism was analyzed through the observation of the inner structure of the tensile test bar using SEM. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：2996 / 3003

页数：8

共 30 条

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