The Effects of Chemical Resistance for Nanocomposite Materials via Nano-Silica Addition into Glass Fiber/Epoxy

Abstract:

Nanocomposite samples containing epoxy resin, glass fiber and 0~2 wt.% SiO₂ nanopowder are prepared. The effects of SiO₂ addition on the chemical resistance, glass transition temperature (Tg) and dynamic mechanical properties of the various samples are then observed. The chemical resistance of the nanocomposite specimens is compared with that of pure glass fiber/epoxy composite specimens when tested in acetone. The results show that the addition of 2 wt.% SiO₂ increases the value of storage modulus by 1646MPa compared to that of the sample containing no silica nanopowder. Following immersion in acetone, all the nanocomposite specimen storage modulus decreased, but the addition of SiO₂ reduced the decline, where the 2 wt. % samples decrease from 11.76% reduction to 0.84% and no significant change in the Tg compared to that of the sample with no silica nanopowder. Therefore, the experimental results indicate that 2 wt.% SiO₂ addition is beneficial in improving chemical resistance, glass transition temperature, and dynamic mechanical properties of epoxy resin / glass fiber nanocomposites.

• Periodical: Advanced Materials Research (Volume 853)
• Pages: 28-33
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.853.28
• Online since: December 2013
• Authors: Huey Ling Chang*, Chih Ming Chen, Kung Liang Lin, Bor Kae Chang
• Keywords: Dynamic Mechanical Analysis, Epoxy Resin (ER), Nanocomposite, Nanosilica Powder

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