摘要
采用热压成型的方法制备了不同含量铁尾矿增强的树脂基复合材料，并对其力学性能和摩擦学性能进行了研究。结果表明，铁尾矿含量小于20％时，树脂基复合材料的各项物理力学性能和摩擦磨损性能较优，其中含铁尾矿10％的样品性能最佳；当含量超过20％时，复合材料的性能随着铁尾矿含量的增加有所降低，但仍符合国内外相应的标准。扫描电镜分析表明，样品中铁尾矿保持低含量（小于20％）时，磨损表面相对平整，磨损主要以磨粒磨损、粘着磨损和疲劳磨损为主；高含量（超过20％）时，随着铁尾矿含量的逐步增加，沟犁效应加剧，且样品磨损表面出现大量磨损粒子，此磨损主要为磨粒磨损和疲劳磨损。
The resin-based composites filled with iron ore tailings are prepared by heat-press molding method, the mechanical properties and tribological behaviors of the composites are studied. The results show that the performance of the resin-based composites with the content of iron ore tailings less than 20% is superior to the reference, and deteriorates more than 20%, but still meets the corresponding standards at home and abroad. The best performance is attained when the mass fraction of fly ash reaches 10%. The microstructures of worn surfaces of the resin-based composites are observed by a scanning electron microscope, it is found that the worn surfaces is relatively smooth when containing a low content of the iron railings （less than 20~）, and the surface wear is dominated by abrasive wear,adhesive wear and fatigue wear. A large number of wear particles and serious scratches will generate on the wear surface with a higher content of the iron ore railings （over 20 %）. The wear is mainly dominated by abrasive wear and fatigue wear.
基金
江苏高校自然科学重大基础研究项目（08KJA43009）
江苏省生态环境材料重点实验室开放基金（XKY2007011）
关键词
铁尾矿
树脂基复合材料
力学性能
摩擦磨损
iron ore tailings, resin-based composites, mechanical properties, friction and wear
