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首页> 外文会议>2010 International Conference on Mechanic Automation and Control Engineering >Tribological properties of hybrid Kevlar/PTFE fabric reinforced phenolic composite filled with nano-alumina
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Tribological properties of hybrid Kevlar/PTFE fabric reinforced phenolic composite filled with nano-alumina

机译：纳米氧化铝填充Kevlar / PTFE混杂纤维增强酚醛复合材料的摩擦学性能

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The hybrid Kevlar/PTFE (polytetrafluroethylene) fabric composite was prepared by impregnating of Kevlar/PTFE fabric in phenolic resin containing nano-alumina and the successive curing. To investigate the effects of nano-alumina on the tribological properties of the fabric composite, wear tests were performed on block-on-ring friction and wear tester. The tensile properties of the composite was evaluated on universal material testing machine. The Scanning electron microscopy(SEM) was utilized to observe the morphologies of worn surfaces of the fabric composite and the counterface. The results show that the addition of nano-alumina improve the wear resistance and the tensile resistance properties, but increase the firction coefficient. The SEM observations indicate that microcutting and plastic deformation are the main wear mechanisms of the composites. Finally, the possible mechanisms of the influences of the nano-alumina on the tribological properties were discussed.
机译：通过将凯夫拉尔/ PTFE织物浸渍在含纳米氧化铝的酚醛树脂中并连续固化，来制备凯夫拉尔/ PTFE（聚四氟乙烯）混杂织物复合材料。为了研究纳米氧化铝对织物复合材料摩擦学性能的影响，在环上摩擦和磨损测试仪上进行了磨损测试。在通用材料试验机上评估复合材料的拉伸性能。利用扫描电子显微镜（SEM）观察织物复合材料和配合面的磨损表面的形态。结果表明，纳米氧化铝的加入改善了耐磨性和抗拉性能，但增加了燃烧系数。 SEM观察表明，显微切割和塑性变形是复合材料的主要磨损机理。最后，讨论了纳米氧化铝对摩擦学性能影响的可能机理。

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