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首页> 外文期刊>Tribology International >Synthesis of oil-soluble WS2 nanosheets under mild condition and study of their effect on tribological properties of poly-alpha olefin under evaluated temperatures
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Synthesis of oil-soluble WS2 nanosheets under mild condition and study of their effect on tribological properties of poly-alpha olefin under evaluated temperatures

机译：温和条件下油溶性WS2纳米片的合成及其对评价温度下聚甲烯烃的摩擦学性质的影响研究

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摘要

A liquid phase method was adopted to encapsulate tungsten disulfide (WS2) nanosheets with oleylamine (OA) at a relatively lower temperature of 200 degrees C so as to acquire good solubility in organic lubricant base oil. The effect of OA-modified WS2 nanosheets on the tribological properties of poly-alpha olefin (PAO6) in a wide temperature range was examined with a four-ball machine and a UMT TriboLab test rig in a piston ring-cylinder liner contact mode. Results indicate that the OA-modified WS2 nanosheets added in PAO6 oil are able to improve the tribological properties of the lubricant base oil significantly at elevated temperatures; and they are advantageous over zinc dialkyldithiophosphates in improving the anti-wear ability of PAO6 from room temperature to 300 degrees C.
机译：采用液相法将二硫化钨（WS2）纳米片与甲胺（OA）置于200℃的相对较低的温度，以便在有机润滑剂基础油中获得良好的溶解度。 用四滚筒机和活塞环缸衬套接触模式检查宽温度范围内聚-α-烯烃（PAO6）的摩擦素（PAO6）的摩擦学性能的影响。 结果表明，在PAO6油中添加的OA改性的WS2纳米片能够在高温下显着改善润滑剂基础油的摩擦学性质; 它们是有利的二烷基二磷酸磷酸盐，从而改善Pao6从室温到300℃的抗磨损能力。

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