Firstly,using silane coupling agent KH-550 to modify the surface of nano-SiO2,according to measuring HD value of modified nano-SiO2,the optimal modifying condition was selected that the mass fraction of KH-550 6%,the reaction temperature 30℃ and the response time 1.5h.Secondly,using Schulman method,the micro-emulsion was got.To judge the compounding effect of micro-emulsion,the apparent degree of transparency and stability of micro-emulsion were observed.The optimized formula of microemulsion preparation was that V(oil)∶V(water)=3∶2,ω(emulsifier)=25%,ω(co-emulsifier)=25% and ω(monomer)=50%.Finally,the composite was prepared through the inverse micro-emulsion polymerization method.The infrared spectrum analysis and transmission electron microscopy was used to characterize the product.
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基金资助
国家自然科学基金(51304163);中国博士后科学基金(2014M562507XB)
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