Nano-disassembling method-A new method for preparing completely exfoliated epoxy/clay nanocomposites

被引：20

作者：

Li, Xi

Zhan, Zai-Ji ^{[1
]}

Peng, Gui-Rong

Wang, Wen-Kui

机构：

[1] Yanshan Univ, State Key Lab Metastable Mat Sci & Technol, Qinhuangdao 066004, Peoples R China

来源：

APPLIED CLAY SCIENCE | 2012年 / 55卷

关键词：

Montmorillonite; Nanocomposites; Complete exfoliation; Mechanical properties; Thermal properties; Nano-disassembling method; MECHANICAL-PROPERTIES; MORPHOLOGY;

D O I：

10.1016/j.clay.2011.11.015

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Completely exfoliated epoxy/organo-montmorillonite nanocomposites with high-performance were successfully prepared using Nano-disassembling method. Nano-SiO2 particles were added into the organomontmorillonite and epoxy mixture system as a disassembler to interact with organo-montmorillonite (o-MMT). By means of the strong interaction between nanoscale particles, the MMT layers were completely disassembled into elemental nanoscale mono-platelets. These mono-platelets and the disassembler particles dispersed in the resultant nanocomposites taking an interlacing arrangement. Mechanical testing and thermal analysis results indicated that the nanocomposites prepared by Nano-disassembling method displayed dramatic improvements in mechanical and thermal properties compared with traditional epoxy/o-MMT nanocomposites. Tensile modulus and tensile strength increased by 63.0% and 53.0%, respectively. Flexural modulus enhanced by 6.0%, flexural strength by 13.2% and notch impact strength by 36.1%. Glass transition temperature and thermal decomposition temperature moved to high temperatures by 9.0 degrees C and 5.0 degrees C. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：168 / 172

页数：5

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