The mechanical properties of hydroxyapatite-polyethylene composites have been improved by increasing the interfacial bond between the hydroxyapatite reinforcing particles and the polyethylene. Two types of surface treatment have been investigated: both use silane coupling of the hydroxyapatite, either with or without grafting of the polyethylene. These treatments have lead to the presence of a silicon-containing interphase promoting chemical adhesion and penetration of the polymer into cavities in the ceramic particles. The resultant bond has improved the mechanical properties and fracture behaviour of the composites.
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This paper was accepted for publication after the 1995 Conference of the European Society of Biomaterials, Oporto, Portugal, 10–13 September.
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Deb, S., Wang, M., Tanner, K.E. et al. Hydroxyapatite-polyethylene composites: effect of grafting and surface treatment of hydroxyapatite. J Mater Sci: Mater Med 7, 191–193 (1996). https://doi.org/10.1007/BF00119729
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DOI: https://doi.org/10.1007/BF00119729