Tribotechnical Properties of UHMWPE Based Composite Filled with HA Microparticles under Dry Sliding and Lubrication

Abstract:

The tribotechnical properties of ultra-high molecular weight polyethylene (UHMWPE) based composite filled with hydroxyapatite (HA) microparticles under dry sliding and lubrication of distilled water and plasma blood wear investigated with block-on-ring. It was shown that modification of UHMWPE by HA microparticles of 20 wt.% results in decrease of wear intensity at dry sliding up to 4 times. The under lubrication, wear intensity of pure UHMWPE and microcomposite are deceased up to 50–70% as compared with under dry sliding. Permolecular structure of pure UHMWPE and microcomposite are spherulitic structure and the HA microparticles were dispersed in the UHMWPE matrix.

• Periodical: Advanced Materials Research (Volume 1040)
• Pages: 213-217
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1040.213
• Online since: September 2014
• Authors: Narongrit Sonjaitham, Noppanuch Puangmalee
• Keywords: Dry Sling, Hydroxyapatite (HA), Lubrication, Microcomposite, Tribotechnical Properties, Ultrahigh Molecular Weight Polyethylene (UHMWPE)

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