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The sol-gel reaction using tetraethoxysilane (TEOS) was conducted for modified natural rubber (NR) matrix to obtain in situ generated NR/silica composite. The present of aery late group in the modified NR chain turns the composite into radiation-curable. The maximum amount of silica generated in the matrix was 50phr by weight. During the sol-gel process the inorganic mineral was deposited in the rubber...
The effects of absorbed water on the gamma-relaxation process of polyoxymethylene (POM) were studied using dielectric spectroscopy and thermogravimetric analysis. The spectra were measured isothermally over the frequency range of 10 MHz to 2 GHz, and the water content was varied from dried to 1.65 wt% (saturated). The strength and rate of the gamma-relaxation process increased with increasing water...
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