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采用阿克隆磨耗试验机研究了在干摩擦定载荷条件下经添加八类粉体和三类干膜润滑剂涂膜的硫化丁腈橡胶的滑动磨损性能,用SEM观察磨损试样表面形貌,并通过红外光谱分析了涂膜磨损前后结构特征。结果表明:添加PTFE和Al(OH)3的橡胶试样耐磨性较优,其总磨损量由0.314g分别降低为0.264g和0.272g,分别下降16%和13%;而添加石墨或MoS2磨损质量分别增加20%和63%;添加Al(OH)3并涂覆PTFE和未添加Al(OH)3并涂覆MoS2的试样磨损量较低,二者与涂膜表面特性相关。
The wear behavior of vulcanized nitrile rubber vulcanized by adding eight kinds of powders and three kinds of dry film lubricant coatings under the condition of dry friction and fixed load was studied by using Akron abrasion tester. The surface morphology of worn samples was observed by SEM, The structure characteristics before and after the coating wear were analyzed by infrared spectroscopy. The results show that the wear resistance of rubber samples with PTFE and Al (OH) 3 is better, and the total wear loss is decreased from 0.314g to 0.264g and 0.272g respectively, down by 16% and 13% respectively. However, graphite or MoS2 The wear quality increases by 20% and 63% respectively. The wear amount of Al (OH) 3 coated with PTFE and MoS2 without Al (OH) 3 is lower, which is related to the surface properties of the coating.