期刊
APPLIED CLAY SCIENCE
卷 55, 期 -, 页码 168-172出版社
ELSEVIER
DOI: 10.1016/j.clay.2011.11.015
关键词
Montmorillonite; Nanocomposites; Complete exfoliation; Mechanical properties; Thermal properties; Nano-disassembling method
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.
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