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Original Articles

Mechanical and Tribological Behaviour of UHMWPE/HDPE Blends Reinforced with SBS

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Pages 750-753 | Published online: 02 May 2012
 

Abstract

Ultra-high molecular weight polyethylene (UHMWPE) composites filled with high density polyethylene (HDPE) (up to 20 vol.%) and styrene-butadiene-styrene triblock copolymer (SBS) (up to 7 vol.%) were prepared by extrusion and subsequently hot press-molding. Based on the results of tensile and sliding wear tests, the tensile and tribological behavior of these materials was investigated. A synergistic effect of the incorporated HDPE and SBS is reported. The lowest friction coefficient and wear was obtained for the composition of UHMWPE with 10 vol.% HDPE and 5 vol.% SBS. The scanning electron microscopy (SEM) observation revealed that this hybrid reinforcement could be interpreted in terms of a positive rolling effect of the particles between the two sliding surfaces.

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