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http://dx.doi.org/10.17702/jai.2014.15.2.069

Synthesis of Organic-Inorganic Nanohybrids Using Epoxy-Functionalized Alkoxysilane and Their Properties  

Kim, Bo-Young (Department of Advanced Materials Engineering, Kangwon National University)
Kim, Juyoung (Department of Advanced Materials Engineering, Kangwon National University)
Publication Information
Journal of Adhesion and Interface / v.15, no.2, 2014 , pp. 69-76 More about this Journal
Abstract
Two kinds of epoxy-functionalized alkoxysilane (EAS) compounds (EAS-MS and EAS-ES) were successfully synthesized through the reaction between epoxy resin (YD-128) and aminopropyl trimethoxysilane (APTMS) or aminopropyl triethoxysilane (APTES). By the hydrolysis-polycondensation reaction of EAS compounds with 3-Glycidyloxypropyl trimethoxysilane (GPTMS) and Tetraethyl orthosilicate (TEOS), silica/epoxy nanohybrids could be prepared at various compositions of EAS to GPTMS/TEOS. Prepared nanohybrids were yellow transparent and miscible with various organic solvents. By the reaction silica/epoxy nanohybrids with curing agents (TETA or acrylic acid), cured hybrids films could be obtained. These cured films showed higher thermal stability and mechanical property compared to cured neat epoxy resin. TEM and AFM images showed formation of nano-sized silica nanoparticles within cured hybrid films.
Keywords
Epoxy resin; Silica; Inorganic/organic Nano hybrids; Sol-gel process;
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