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Effect of Multiple Carbon Nanomaterials on Antifriction Performance of Grease
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    Abstract:

    The modified reduced graphene oxide(MR-GO) and modified carbon nanotubes (M-CNT) were obtained through changing their lipophilicity, and then compounded into the base grease. The modification results of nano-particles were characterized by the infrared spectrometer and other equipments. The friction properties of the samples were evaluated by the ball-on-disk friction test and four-ball test. It was found that the lipophilic modification performance weakened the negative effect of carbon nano-particle agglomeration on lubrication, and the lubricating grease containing dual additives had a better anti-friction performance. Under the electron microscope, MR-GO and M-CNT could improve the roughness of the friction surface. Under the cooperation of the two additives, the self-repairing effect of the friction surface was more perfect, the friction coefficient of the friction surface was lower, and it could be more stable with the increase of the friction, thus forming a steady sustainable lubrication.

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  • Received:
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  • Online: June 25,2021
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