POSS dispersion in polyethylene microcomposites containing quartz and dielectric responses

Ball-milling of polyethylene and POSS in presence of a micrometric silica phase was used as a means to improve the distribution and dispersion of the POSS in the polymeric matrix. Optical observation has confirmed that this approach is effective in doing so. Using BDS, the polyethylene composite containing POSS 5% wt was found to have a very similar dielectric permittivity as compared to that of neat polyethylene. The further addition to the POSS composite of a micrometric phase consisting of silica 30 wt% was found to perturb somewhat the dielectric responses of the resulting polymer composite.