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本文对几种高聚物的耐磨性及摩擦系数和它们的化学结构与填料的关系进行了初步探索。具有较长脂肪链结构和具有酰胺键、氨酯键主链结构的高聚物,其耐磨性较好,尤其是具有软段和硬段两相结构的聚氨酯聚合物的耐磨性更好。 加入填料可以改变聚合物的耐磨性和摩擦系数。加入一定量的石墨。二硫化钼等固体润滑剂,可降低聚合物的摩擦系数,加入一定种类的金属粉和金属氧化物,可提高聚合物的耐磨性,改善聚合物的物理机械性能和耐介质、耐环境条件性能。根据上述探索结果,设计了六种耐磨润滑涂料,并列出了它们全性能检测结果。
In this paper, we first explored the relationship between wear resistance and friction coefficient of several polymers and their chemical structures and fillers. Polymers with longer aliphatic chain structures and backbone structures with amide linkages and urethane linkages have good abrasion resistance, especially those with a two-phase structure of soft and hard segments . Adding filler can change the wear resistance and friction coefficient of the polymer. Add a certain amount of graphite. Molybdenum disulfide and other solid lubricants, can reduce the friction coefficient of the polymer, adding a certain kind of metal powder and metal oxide, can improve the wear resistance of polymers to improve the physical and mechanical properties of polymers and resistance to media, resistance to environmental conditions performance. Based on the above explorations, six wear resistant coatings were designed and their full performance test results are listed.