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Thermal and Mechanical Properties of Epoxy Composites Using Silica Powder
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  • Journal title : Adhesion and Interface
  • Volume 17, Issue 1,  2016, pp.7-14
  • Publisher : The Society of Adhesion and Interface, Korea
  • DOI : 10.17702/jai.2016.17.1.7
 Title & Authors
Thermal and Mechanical Properties of Epoxy Composites Using Silica Powder
Lee, Hye Ryeon; Song, JeeHye; Kim, Daeyeon; Lim, Choong-Sun; Seo, BongKuk;
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 Abstract
Epoxy composites with concentrations of 5-70 wt% of silica particles were prepared in order to improve mechanical property and poor thermal stability. The mechanical and thermal properties were investigated and compared to the corresponding properties of neat epoxy composite. Furthermore, the effects of silane compound treatment on silica particles were observed by the experimental results of the tensile strength, glass transition temperature, and thermal stability of epoxy composite. Tensile strength of epoxy composites was measured by universal testing machine (UTM) and after that, the structure and morphology analysis of epoxy nanocomposites were analyzed by field emission scanning electron microscope (FE-SEM) and energy dispersive spectroscopy (EDS). The increased solid content of CA0030 particle improved the tensile strength of epoxy/ modified composites to give 30-50 MPa. The thermal expansion coefficients (CTE) of neat epoxy resin and epoxy/silica composites measured with a thermomechanical analyzer (TMA) showed that the incorporation of silica particles was helpful to reduce the CTE of neat epoxy resin.
 Keywords
epoxy composites;surface modified silica;mechanical property;coefficient of thermal expansion;thermal shock test;
 Language
Korean
 Cited by
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