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Vol. 27 No. 11 (2015): Vol 27 Issue 11

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Effect of Surface Modification of Fumed-Silica on Mechanical Properties of Unsaturated Polyester Composites

https://doi.org/10.14233/ajchem.2015.19112
Mustafa Çakir
Faculty of Technology, Marmara University, Göztepe, Istanbul 34722, Turkey
Ramazan Simsek
Faculty of Technology, Marmara University, Göztepe, Istanbul 34722, Turkey
Ali Alparslan Çelik
Faculty of Technology, Marmara University, Göztepe, Istanbul 34722, Turkey

Corresponding Author(s) : Mustafa Çakir

mcakir@marmara.edu.tr

Asian Journal of Chemistry, Vol. 27 No. 11 (2015): Vol 27 Issue 11

Abstract

The aim of this study is to investigate the effect of surface modification of fumed silica via vinyltrimethoxysilane on mechanical properties of fumed silica-unsaturated polyester composites. Modified and unmodified fumed silica-unsaturated polyester composites were prepared with the inclusion of vinyltrimethoxysilane in different (0, 0.5, 1, 1.5, 2, 2.5, 3 wt %) contents. SEM images revealed dispersion and agglomeration of inorganic constituents throughout the fracture surface of the composites. FT-IR analysis confirmed succesful conduction of surface modification of fumed silica. Mechanical properties were evaluated via tensile and impact tests. Heat deflection temperature tests were also performed to evaluate thermal behaviour. The most obvious effect of modified fumed silica was seen in impact strength which showed two different trends.

Keywords

Vinyltrimethoxysilane Fumed silica Unsaturated polyester Nanocomposites
Çakir, M., Simsek, R., & Alparslan Çelik, A. (2015). Effect of Surface Modification of Fumed-Silica on Mechanical Properties of Unsaturated Polyester Composites. Asian Journal of Chemistry, 27(11), 4120–4124. https://doi.org/10.14233/ajchem.2015.19112
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