title: Wear performance of ultrahigh molecular weight polyethylene/quartz composites.
abstract: Ultrahigh molecular weight polyethylene (UHMWPE)/quartz composites were compression molded in the presence of organosiloxane, and then hydrolyzed. The used organosiloxane is vinyl tri-ethyloxyl silane. The gelation, the melting behavior, the crystallinity, the mechanical properties and the wear resistance of UHMWPE/quartz composites were investigated. The results showed that organosiloxane can act as a cross-linking agent for UHMWPE matrix and serve as a coupling agent for improving the bonding between the quartz particles and the UHMWPE matrix. The correlation between the various properties and the morphology of the composites has been discussed. At about 0.5phr organsiloxane while the degree of crystallinity of the composite is at the peak value of 57%, the mechanical properties and the wear resistance of UHMWPE/quartz composites reaches their maximum.
authors.affiliation: Department of Industrial and Systems Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong, People's Republic of China.
authors.forename: X L
authors.initials: XL
authors.lastname: Xie
authors.forename: C Y
authors.initials: CY
authors.lastname: Tang
authors.forename: Kathy Y Y
authors.initials: KY
authors.lastname: Chan
authors.forename: X C
authors.initials: XC
authors.lastname: Wu
authors.forename: C P
authors.initials: CP
authors.lastname: Tsui
authors.forename: C Y
authors.initials: CY
authors.lastname: Cheung
mesh_terms: D001672:Biocompatible Materials / Q000138:chemical synthesis / Q000737:chemistry; D002470:Cell Survival / Q000187:drug effects; D002478:Cells, Cultured; D055598:Chemical Phenomena; D002621:Chemistry; D019544:Equipment Failure Analysis; D006244:Hardness; D006245:Hardness Tests / Q000379:methods*; D006801:Humans; D008420:Manufactured Materials; D008422:Materials Testing; D032342:Muscle Cells / Q000187:drug effects* / Q000473:pathology; D011095:Polyethylenes / Q000737:chemistry* / Q000633:toxicity*; D019736:Prostheses and Implants; D011791:Quartz / Q000737:chemistry* / Q000633:toxicity*; D012833:Siloxanes / Q000737:chemistry; D013499:Surface Properties; D013696:Temperature
chemical_list: D001672:Biocompatible Materials; D011095:Polyethylenes; D012833:Siloxanes; C111601:ultra-high molecular weight polyethylene; D011791:Quartz