Poly(methyl methacrylate)-silica nanocomposite (PSN) foams were formulated for the comparison of the effect of vinyl-modified silica (VMS) and raw silica (RS) particles on cell structure, insulation properties, and insulation properties. It was found that those thermoplastic foams containing VMS particles had improved dispersion capability than those containing RS particles. The incorporation of VMS particles was found to reduce the cell size and increase the cell density of the ...
Three model polymer-bonded explosive compositions were prepared to determine the effects of damage on their mechanical and thermal properties. The composites were damaged in a controllable manner such that three different levels of damage could be produced, and the strain on the samples could be determined. The samples differed in the size of the particles that they contained, and the sample that showed the largest decrease in mechanical properties occurring ...
Multi-walled carbon nanotube (MWCNT)/poly (methyl methacrylate) composites were prepared and their mechanical and physical properties were examined. An amphiphilic copolymer was used to aid in dispersing the MWCNTs throughout the composite. It was found that the use of this copolymer resulted in a good dispersal of the MWCNTs without drastically affecting the molecular weights of the composites, so it was concluded that the observed improvements in mechanical properties of ...
Sulfonated polystyrene-block-poly(ethylene-ran-butylene)-block-polystyrene (SPSPB) was used as a polymer matrix to create polymeric nanocomposites using graphite (G) and graphite-polyoxometalate (G-POM) as fillers. It was found that the nanocomposites had higher thermal and electrical conductivities than SPSPB alone, and that both the thermal and the electrical conductivity increased with increasing filler concentration. At all filler contents tested, the SPSPB/G-POM had both a higher thermal conductivity and a higher electrical ...
The authors have investigated the use of silver nanomaterials as a filler in epoxy resin in an effort to identify a composite resin with a high thermal conductivity for application as a thermal interface material. It was determined that the addition of silver nanoparticle and silver nanowires both increased the thermal conductivity of the resin, but the silver nanowires caused a much more drastic increase. It was found that by ...
