Space charge properties of UHMWPE/OibPOSS composites

POSS (Polyhedral Oligomeric SilSesquioxanes) is a type of filler of great interest in the field of polymeric micro and nanodielctrics. The thermal and mechanical properties after incorporation of POSS into polymer via chemical cross-linking or physical blending have been paid much attention to recently. In this paper, the space charge property of microstructured composites consisting of UHMWPE (ultra-high-molecular weight polyethylene) and OibPOSS (OctalsoButyl Polyhedral Oligomeric SilSesquioxanes) was studied. The high-energy shaker mill was used to obtain the composites. Briefly this paper show the space charge profiles for samples with 0wt%, 1wt%, 5wt% OibPOSS contents. The charge injection in all the samples under different applied voltages is not significant. Some homocharge can be observed from the interface between electrode and sample, only in the case of 1wt% and 5wt% composites. The charge injection and decay processing is inactive in the composites samples.