Tribological properties of epoxy nanocomposites -: I.: Enhancement of the wear resistance by nano-TiO2 particles
Tribological properties of epoxy nanocomposites -: I.: Enhancement of the wear resistance by nano-TiO2 particles
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DOI：
10.1016/j.wear.2004.09.005
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发表时间：
2005-01-01
期刊：
影响因子：
5
通讯作者：
Friedrich, K
中科院分区：
文献类型：
--
作者：
Chang, L;Zhang, Z;Friedrich, K
研究了短切碳纤维、石墨、聚四氟乙烯（PTFE）和纳米二氧化钛（TiO 2）以不同比例和组合填充环氧树脂基复合材料的摩擦学性能。采用销-盘摩擦磨损试验机，在干摩擦条件下，研究了不同接触压力和滑动速度下摩擦系数、耐磨性和接触温度的变化规律。实验结果表明，纳米TiO 2的加入可以明显降低纤维增强环氧复合材料的摩擦系数，从而降低纤维增强环氧复合材料的接触温度。结果表明，复合材料的耐磨性显著提高，特别是在极端磨损条件下，即高接触压力和滑动速度。与传统填料相比，环氧树脂纳米复合材料的耐磨性和承载能力得到了普遍提高。(C)2004 Elsevier B. V.保留所有权利。
The tribological performances of epoxy-based composites, filled with short carbon fibre, graphite, PTFE and nano-TiO2 in different proportions and combinations, were investigated. The patterns of frictional coefficient, wear resistance and contact temperature were examined by a pin-on-disc apparatus in a dry sliding condition under different contact pressures and sliding velocities. The experimental results indicated that the addition of nano-TiO2 could apparently reduce the frictional coefficient, and consequently reduce the contact temperature of fibre-reinforced epoxy composites. As a result, the wear resistance of the composites was significantly enhanced, especially at extreme wear conditions, i.e. high contact pressures and sliding velocities. Compared to traditional fillers, epoxy nanocomposites attained generally improved both wear resistance and load-carrying capacity. (C) 2004 Elsevier B.V. All rights reserved.