Tribological Behaviors of UHMWPE Composites Filled with Basalt Fibers
首发时间:2010-12-28
Abstract:Filling modification is an important method to improve the performance of UHMWPE. In this article, the basalt fibers were used to fill the UHMWPE because of their outstanding tribological performance. Firstly, in order to maintain the UHMWPE's excellent impact toughness, the UHMWPE composites with the filler content of 5 wt.%-20 wt.% were prepared. Then the impact toughness and tribological performances of the composites were tested. Also the wear mechanism was analyzed. The results indicated that the UHMWPE composites' impact toughness was decreased when filled with the basalt fibers. Under the same experimental conditions, the friction coefficient of the UHMWPE composites filled with basalt fibers was decreased to some extent, and the wear loss of the composites was significantly reduced. The analysis showed that the wear type of the UHMWPE composites was changed when filled with the basalt fibers. So the wear-resistant performance of the UHMWPE composites was effectively enhanced.
keywords: basalt fibers UHMWPE modification impact toughness friction wear
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玄武岩纤维填充超高分子量聚乙烯复合材料的摩擦学性能研究
摘要:填充改性是改善超高分子量聚乙烯性能的重要方法之一。因为玄武岩纤维具有优异的摩擦学性能,本文采用玄武岩纤维对超高分子量聚乙烯进行填充改性研究:首先制备了超高分子量聚乙烯复合材料,为了保持超高分子量聚乙烯良好的耐冲击性能,填充量为5%-20%。然后测试了复合材料的冲击强度和摩擦学性能,并对其磨损机理进行了分析。研究结果表明,玄武岩纤维明显降低了超高分子量聚乙烯的冲击韧性。在相同实验条件下,填充玄武岩纤维使复合材料的摩擦系数有一定程度的降低,并能大大降低复合材料的磨损量。分析表明,玄武岩纤维的加入改变了超高分子量聚乙烯的磨损形式,从而有效地增强了复合材料的耐磨性能。
关键词: 玄武岩纤维 超高分子量聚乙烯改性 冲击韧性 摩擦 磨损
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