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Multi-walled carbon nanotube/epoxy resin (MWCNT/EP) composites with filler contents from 0.03wt% to 0.5wt.% and two different aspect ratios are prepared by solution blended process. Carbon nanotubes are dispersed by sonication and high speed shear force. The impact of aspect ratio on electric and thermal conductivity of nanocomposites has been studied. Experiment results illustrate that percolation...
In order to study the effects of grafting modification on the dispersion and dielectric properties of SiO2/epoxy nanocomposites, in toluene solvent, epoxy molecules were grafted to the silane coupling agent (KH550) which were pre-grafted on the surface of nano-SiO2 fillers previously. Original SiO2 fillers and epoxy-grafted SiO2 fillers were used for preparing two kinds of SiO2/epoxy nanocomposites...
Effects of surface modification agents on the properties of silica (SiO2) /epoxy resin (EP) nanocomposites were studied for the significant impacts of the interface structure between the fillers and resin matrix. The surface modification agent of KH550, KH560 and KH570 were grafted to the surfaces of SiO2 fillers. The original and modified SiO2 fillers were characterized by FTIR and TG. Nanocomposite...
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