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Complex permittivity (ε r’ and ε r”)conductivity (σ), and glass transition temperature (Tg) were measured for composites of epoxy resin and MgO fillers with various sizes in a wide temperature and frequency range. The effect of co-addition of nano-sized SiO2 was also examined. It has become clean that Tg decreases by the addition of MgO fillers, and its decrement becomes more with a decrease in filler...
Epoxy (EP) and EP-based composites are used as insulating materials in several electrical applications. In this work, the mesoporous silica-epoxy (SBA-15/EP) nanocomposite was prepared after surface modification of SBA-15 with a silane coupling agent KH550. Then, SBA-15/EP composite with different weight percentage of SBA-15 was prepared by using the in situ polymerization. Transmission electron microscopy...
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