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Ethylene Propylene Rubber (EPR) with excellent dielectric properties has been widely used as cable insulation specially to be used where cables need to be moved frequently, such as in coal mine. Usually, theses cables will be bending excessively, coupled with the electric stress and thermal stress, the aging of the insulation tend to accelerate and the strength of insulation could decrease, with the...
It has been proposed that epigenetic modulation plays a critical role in cellular senescence and organismal aging. Two major epigenetic codes are DNA methylation and histone modifications, including acetylation, methylation, phosphorylation and ubiquitylation. Environmental factors such as dietary components can regulate gene expression by altering epigenetic modifications and may thus have long lasting...
PI/Al2O3 films have been extensively studied due to its' excellent corona resistance. In this paper, a series of PI/Al2O3 films with inorganic content of 16% are prepared via in-situ polymerization method. The Al2O3 filler is dispersed by three different methods include mechanical dispersion, sanding mechanical dispersion and ultrasonic dispersion respectively. The films are characterized by scanning...
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