Abstract
ABSTRACTPoly(methyl methacrylate)/biphasic calcium phosphate (PMMA/BCP) coating has been prepared by mixing BCP in situ with the poly(methyl methacrylate) obtained from methyl methacrylate (MMA) polymerization. For comparative studies, concentration of BCP into PMMA matrix was varied in order to determine the influence of BCP incorporation into PMMA matrix on the hardness and friction behavior. The micro-hardness of PMMA/BCP coatings on stainless steel was evaluated using a Vickers hardness tester, while the wear tests for PMMA/BCP coatings on stainless steel were carried out on a CSM tribometer in dry conditions with normal load of 2 N. The incorporation of BCP into the polymer matrix significantly improves the microhardness of PMMA increasing to 15 % with 0.25 wt.% of BCP content. Whereas, the lowest friction coefficient value µk = 0.35 was obtained for PMAA/BCP with 0.35wt.% of BCP.
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