Hydroxyapatite-polyethylene composites: effect of grafting and surface treatment of hydroxyapatite

✍ Scribed by S. Deb; M. Wang; K. E. Tanner; W. Bonfield

• Publisher: Springer
• Year: 1996
• Tongue: English
• Weight: 352 KB
• Volume: 7
• Category: Article
• ISSN: 0957-4530
• DOI: 10.1007/bf00119729

✦ Synopsis

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.