Abstract
In this work, organic–inorganic hybrid nanocomposites based on vinylsilane-functionalized SBA-15 reinforced unsaturated polyester resin were developed and characterized. SBA-15 was synthesized and functionalized with vinyltriethoxysilane. The surface functionalized SBA-15 (VSBA-15) with varying weight percentages (1, 3, 5, and 7 wt%) was incorporated into the unsaturated polyester resin. The resulting VSBA-15-reinforced epoxy composites were characterized by Fourier transform infrared spectroscopy, X-ray diffraction, differential scanning calorimetry, and thermogravemetric analysis and impedance analyzer. Among the composite samples with varying loadings, the dielectric behavior of 7 wt% VSBA-15 loaded composite sample possesses the lowest value of dielectric constant, that is, 2.4 at 1 MHz frequency when compared with that of other samples. Further, the thermal stability was also enhanced to an appreciable extent, when compared with that of the samples with lower V-SBA-15 loadings. POLYM. COMPOS., 37:3433–3441, 2016. © 2015 The Authors Polymer Composites published by Wiley Periodicals, Inc. on behalf of Society of Plastics Engineers
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