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首页> 外文期刊>Journal of Applied Polymer Science >Effects of lubricating-oil additives on the friction and wear properties of polymers and their composites sliding against steel under oil-lubricated conditions
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Effects of lubricating-oil additives on the friction and wear properties of polymers and their composites sliding against steel under oil-lubricated conditions

机译：润滑油添加剂对油润滑条件下聚合物及其复合材料在钢上滑动的摩擦磨损性能的影响

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The effects of lubricating-oil additive zinc dialkyldithiophosphate (ZDDP) on the friction and wear properties of polymers and their composites sliding against GCr15 bearing steel were studied by using an MHK-500 ring-on-block wear tester (Timken wear tester). Then the frictional surfaces of the friction pairs were examined by using electron probe microanalysis (EPMA). Experimental results show that the ZDDP contained in liquid paraffin has little effect on the friction coefficients of the polyimide (PI) or polyamide 66 (PA66) against GCr15 bearing steel friction pairs compared with that under the lubrication of liquid paraffin, but it slightly reduces the friction coefficients of polytetrafluoroethylene (PTFE) or its composites against GCr15 bearing steel friction pairs. Under lubrication of liquid paraffin containing 2 wt % ZDDP, the ZDDP film absorbed on the frictional surfaces of the PTFE composites-GCr15 bearing steel friction pairs exhibits obvious antiwear properties; it greatly reduces the wear of pure PTFE and the PTFE composites filled with rb, PbO, and MoS2; and the wear of the PTFE composites can be reduced by one order of magnitude compared with that under lubrication of pure liquid paraffin. Meanwhile, the inorganic fillers Pb, PbO, and MoS2 contained in PTFE have little effect on the absorption of ZDDP to the frictional surfaces, so they have little effect on the friction coefficients of the PTFE composites-GCr15 bearing steel friction pairs under the lubrication of liquid paraffin containing 2 wt % ZDDP. (C) 2000 John Wiley & Sons, Inc. [References: 17]
机译：使用MHK-500块环式磨损测试仪（Timken磨损测试仪）研究了润滑油添加剂二烷基二硫代磷酸锌（ZDDP）对聚合物及其复合材料在GCr15轴承钢上滑动的摩擦和磨损性能的影响。然后使用电子探针显微分析（EPMA）检查摩擦副的摩擦表面。实验结果表明，与液体石蜡润滑相比，液体石蜡中的ZDDP对聚酰亚胺（PI）或聚酰胺66（PA66）对GCr15轴承钢摩擦副的摩擦系数影响很小。聚四氟乙烯（PTFE）或其复合材料对GCr15轴承钢摩擦副的摩擦系数。在含有2 wt％ZDDP的液体石蜡的润滑下，在PTFE复合材料-GCr15轴承钢摩擦副的摩擦表面上吸收的ZDDP膜表现出明显的抗磨性能;它大大降低了纯PTFE和填充有rb，PbO和MoS2的PTFE复合材料的磨损。与纯液体石蜡润滑相比，PTFE复合材料的磨损可降低一个数量级。同时，PTFE中所含的无机填料Pb，PbO和MoS2对ZDDP到摩擦表面的吸收几乎没有影响，因此它们对PTFE复合材料-GCr15轴承钢摩擦副的摩擦系数几乎没有影响。含有2 wt％ZDDP的液体石蜡。 （C）2000 John Wiley＆Sons，Inc. [参考：17]

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