No abstract

Silicone rubber (SR) composites filled with carbon black (CB) and carbon fibre (CF) were prepared. The effects of a single filler as well as hybrid fillers on the thermal conductivity (λ) and mechanical properties of SR composites were investigated. It was found that hybrid filler was more effective in increasing λ of the composite, and this effect was more pronounced when the weight ratio of CF:CB was 80:20. The scanning electron microscopy showed the hybrid filler formed a better filler network than single filler in the matrix. SR composites filled with hybrid fillers also possessed better mechanical properties compared with composites filled with only CF.

No abstract

No abstract

The effects of the blending process on the mechanical properties of styrene butadiene rubber/cis-butadiene rubber/silica systems was studied in relation to the order of addition of two kinds of rubbers during blending. The specific blending method of two-step rubber feeding method led to different mixing conditions, and consequently the mechanical properties of the vulcanizates varied significantly. The blending process was mainly influenced by two factors: the wetting of the filler and the interactions of the materials. This work focused on the influence of filler loading on different blending methods, in order to build up the relationship between bound rubber and various properties in silica filled SBR/BR compounds.