p.449
p.453
p.457
p.461
p.465
p.469
p.473
p.477
p.481
Study on Microstructure and Impact Strength of Nano-SiO2 Toughened Epoxy Resin Composites
Abstract:
In this paper, composites with different contents of epoxy resin/nano-SiO2 were fabricated, the influence of compounding process on nano-SiO2 dispersion was studied, the microstructure and the relationship between impact strength and nano-SiO2 content were investigated. The results showed that the distribution of nano-SiO2 particles in the composites could be improved efficiently using high-speed shearing dispersion method. To composites with or without the coupling agent treatment, the impact strength grew with increasing nano-SiO2 content, and increase to a maximum value when nano-SiO2 content was 3wt.%. The maximum value was 75.4%, and 45.5% higher than that of monolithic epoxy resin respectively. With the nano-SiO2 content increased continually, the impact strength of composite materials decreased. The coupling agent treatment of nano-SiO2 administered to improve the impact strength of the composites.
Info:
Periodical:
Pages:
465-468
Citation:
Online since:
July 2011
Authors:
Keywords:
Price:
Сopyright:
© 2011 Trans Tech Publications Ltd. All Rights Reserved
Share:
Citation: