Key Words:Ethylene-vinyl acetate copolymer; Styrene-butadiene rubber; Carbon black; Reinforcement; Mullins effect
Abstract:Thermoplastic vulcanisates (TPVs) based on ethylene-vinyl acetate copolymer (EVA)/styrene-butadiene rubber (SBR) blends were prepared by dynamic vulcanisation, with the TPVs being reinforced by carbon black (CB). Experimental results indicated that the mechanical properties of dynamically vulcanised EVA/SBR blends were enhanced remarkably by the incorporation of CB. Morphology study showed that the SBR particles with average diameter of 20 mu m were dispersed evenly on the etched surface of EVA/SBR/CB TPVs. The Mullins effect could be observed in the stress-strain curves of EVA/SBR TPVs and EVA/SBR/CB TPVs during the uniaxial loading-unloading cycles. Compared with EVA/SBR TPVs, CB reinforced EVA/SBR TPVs had the relatively higher stress, residual deformation and internal friction loss.
Volume:45
Issue:10
Translation or Not:no