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首页> 外文期刊>RSC Advances >Cu nanoparticles decorated WS2 nanosheets as a lubricant additive for enhanced tribological performance
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Cu nanoparticles decorated WS2 nanosheets as a lubricant additive for enhanced tribological performance

机译：铜纳米颗粒装饰了WS2纳米片作为润滑剂添加剂以增强摩擦学性能

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Tungsten disulfide–polydopamine–copper (WS _(2) –PDA–Cu) nanocomposites were first prepared by a green and effective biomimetic strategy and then used as a lubricant additive in polyalkylene glycol (PAG). The biomimetic strategy is inspired by the adhesive proteins in mussels. WS _(2) nanosheets were decorated by uniformly dispersed Cu nanoparticles (Cu NPs). The WS _(2) –PDA–Cu nanocomposites with good dispersion stability, showed better friction reducing and anti-wear properties than WS _(2) , Cu NPs and WS _(2) –Cu dispersed in PAG base oil. The average friction coefficient and wear volume were reduced by 33.56% and 97.95%, respectively, at 150 °C under a load of 100 N for the optimal concentration of 0.9 wt%. The lubrication mechanism was discussed.
机译：二硫化钨-聚多巴胺-铜（WS _（2）-PDA-Cu）纳米复合材料首先通过绿色有效的仿生策略制备，然后用作聚亚烷基二醇（PAG）中的润滑剂添加剂。仿生策略的灵感来自于贻贝中的粘附蛋白。 WS_（2）纳米片由均匀分散的Cu纳米粒子（Cu NPs）装饰。与分散在PAG基础油中的WS _（2），Cu NPs和WS _（2）–WS相比，WS _（2）–PDA–Cu纳米复合材料具有良好的分散稳定性，具有更好的减摩和抗磨性能。在最佳浓度为0.9 wt％的情况下，在150°C和100 N的负载下，平均摩擦系数和磨损量分别减少了33.56％和97.95％。讨论了润滑机理。

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