Strengthening and thermal stabilization of polyurethane nanocomposites with silicon carbide nanoparticles by a surface-initiated-polymerization approach

被引：116

作者：

Guo, Zhanhu ^{[1
]}

Kim, Ta Y. ^{[1
]}

Lei, Kenny ^{[1
]}

Pereira, Tony ^{[1
]}

Sugar, Jonathan G. ^{[1
]}

Hahn, H. Thomas ^{[1
]}

机构：

[1] Univ Calif Los Angeles, Mech & Aerosp Engn Dept, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA

来源：

COMPOSITES SCIENCE AND TECHNOLOGY | 2008年 / 68卷 / 01期

基金：

美国国家科学基金会;

关键词：

particle-reinforced composites; polymer-matrix composites (PMCs); mechanical properties; structural materials;

D O I：

10.1016/j.compscitech.2007.05.031

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

Silicon carbide reinforced polyurethane nanocomposites were fabricated by a facile surface-initiated-polymerization (SIP) method. The particle loading was tuned to up to 35 wt% without any obvious shrinkage and breakage as compared with the conventional direct mixing method. An increased thermal stability of the composites was observed with the addition of the silicon carbide nanoparticles under thermo-gravimetric analysis (TGA). Tensile strength was observed to increase dramatically with the increase of the particle loading. Both the uniform particle dispersion and the strong chemical bonding between the nanoparticles and the polymer-matrix contributed to the enhanced thermal stability and improved mechanical properties. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：164 / 170

页数：7

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