机车心盘衬垫的性能易受湿度的影响而很不稳定,为了改善吸湿性对机车心盘衬垫性能的影响,在提高制品的韧性和强度的同时,获取高且稳定的摩擦系数,通过碱催化阴离子聚合反应制备了钛酸钾晶须/MC尼龙复合材料,并经过水浴处理.利用MM-2000型摩擦磨损实验机测试了在干摩擦条件下吸湿性对钛酸钾晶须/MC尼龙复合材料摩擦学性能的影响.实验发现,未水浴处理试样的摩擦系数易受吸湿性的影响而不稳定.水浴处理试样的摩擦系数则能较快地稳定.纯尼龙以粘着磨损为主,钛酸钾晶须的加入大大降低了粘着磨损程度.晶须填充试样的总质量磨损率小于纯尼龙试样,但吸湿性对材料磨损特性的影响并不明显.晶须填充MC尼龙在水浴处理的条件下能明显改善吸湿性对MC尼龙摩擦学性能的影响.
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