采用自组装技术对镁、铝金属表面进行改性处理,并对制备的试样进行紫外照射.利用接触角测量仪、原子力显微镜和UMT-2型微摩擦磨损试验机对制备的试样进行表征和摩擦学特性测试,分析了载荷、滑动速度以及紫外照射对试样摩擦学特性的影响.结果表明,经OTS自组装分子膜改性处理的镁、铝金属表面平整均匀,具有疏水特性和良好的摩擦学性能.Si3N4球与OTS自组装分子改性处理试样间的摩擦系数随载荷和滑动速度的增大而增大.紫外照射5min可有效地提高OTS自组装分子膜改性处理的效果,减小了有机杂质的粘着效应.改性处理的镁、铝金属表面在降低摩擦系数的同时,摩擦副的耐久性显著提高.
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