Twodimensional nanomaterial,g-C3N4 was chemically synthesized using the melamine.The morphologies and crystalline structures of the g-C3N4 powder were characterized by scan electron microscopy (SEM) and Xray diffraction (XRD).The tribological properties of the prepared g-C3N4 nanomaterial as an additive in PEG400 were evaluated with a fourball tester.The morphology of steel ball worn surface,the distribution of elements and the chemical state of typical elements were analyzed by SEM and XPS.The results show that the prepared g-C3N4 has two dimensional layered nanostructure,it exhibits excellent friction reducing properties and good antiwear ability in PEG400.SEM and XPS analysis indicate that physical adhesion film mainly composed of g-C3N4 and some adsorbed organic compounds is formed during the friction process.These contribute to the good friction reducing and antiwear ability of g-C3N4 nanomaterial as PEG400 additive.
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王睿,糜莉萍,张恒,王李波. g-C3N4的制备及在PEG400中的摩擦学性能研究[J].润滑与密封,2017,42(6):83-87. . Preparation and Tribological Performance in PEG400 of g-C3N4 Nanomaterial[J]. Lubrication Engineering,2017,42(6):83-87.