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J Mater Sci Mater Med. 2002 Nov;13(11):1065-9.

Enhanced wear performance of ultra high molecular weight polyethylene crosslinked by organosilane.

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1
Department of Industrial and Systems Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong, PR China mfcytang@polyu.edu.hk

Abstract

Ultra high molecular weight polyethylene (UHMWPE) crosslinked by organosilane was thermal compression molded. The organosilane used was the tri-ethyloxyl vinyl silane. Its gelation, melting behavior, crystallinity, mechanical and wear-resisting properties were systematically investigated. The results showed that the gel ratio of UHMWPE increases with the incorporation of organosilane. At a low content of organosilane, the melting point and crystallinity of the crosslinked UHMWPE increase, and hence the mechanical and wear-resisting properties are improved. However, at a high content of organosilane, these performances of the crosslinked UHMWPE become worse. At 0.4 phr silane, the wear resistance of crosslinked UHMWPE reaches its optimum value.

PMID:
15348177
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