Wear performance of ultrahigh molecular weight polyethylene/quartz composites.
Wear performance of ultrahigh molecular weight polyethylene/quartz composites.
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DOI：
10.1016/s0142-9612(02)00610-5
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发表时间：
2003-05
期刊：
影响因子：
14
通讯作者：
X. Xie;C. Tang;K. Chan;X. C. Wu;C. Tsui;C. Y. Cheung
中科院分区：
文献类型：
--
作者：
X. Xie;C. Tang;K. Chan;X. C. Wu;C. Tsui;C. Y. Cheung
在有机硅氧烷存在下，对超高分子量聚乙烯(UHMWPE)/石英复合材料进行压缩成型，然后进行水解。所使用的有机硅氧烷为乙烯基三乙基氧基硅烷。研究了超高分子量聚乙烯/石英复合材料的凝胶化、熔融行为、结晶度、力学性能和耐磨性。结果表明，有机硅氧烷可以作为UHMWPE基体的交联剂，也可以作为偶联剂改善石英颗粒与UHMWPE基体之间的结合。讨论了复合材料的各种性能与形貌之间的关系。在有机硅氧烷含量约为0.5phr时，复合材料的结晶度达到峰值57%，超高分子量聚乙烯/石英复合材料的力学性能和耐磨性达到最大。
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.