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Experimental investigation reveals how rubber and sand impact wear in epoxy composites, suggesting improvements in durability.
Friction and wear of epoxy based composites filled by different contents of rubber is experimentally investigated in the present work. Styrene butadiene rubber in form in granulates is added as friction modifier into epoxy matrix of the composites. Besides, copper particles and silica nanoparticles are used as constituents of the proposed composites. The experimental results showed thatfriction coefficient displayed by epoxy composites filled by rubber, copper and sand showed the highest values among the tested composites due to the presence of sand. The increase in friction may be due to the ability of sand particles to remove the burnt bonding material and rubber from the friction surface, so that the influence of the carbon film covered the surface of the contact area causing reduction in friction coefficient would diminished. Besides, it seems that sand particles was responsible for the reduction of the fade. Wear values were the lowest among the tested composites. It seems that sand particles were responsible for preventing the worn material from the tested composites to be adhered to the counterface, providing rolling elements separating the two sliding surrfaces and protecting them from excessive wear.
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Dina et al. (2017) studied this question.
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