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g-C3N4的制备及在PEG400中的摩擦学性能研究
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Preparation and Tribological Performance in PEG400 of g-C3N4 Nanomaterial
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    摘要:

    以三聚氰胺为前驱体采用焙烧法制备二维纳米材料g-C3N4,用X射线衍射(XRD)对g-C3N4粉体样品进行物相分析,同时用扫描电子显微镜(SEM)分析g-C3N4表面形貌。采用四球摩擦磨损试验机考察g-C3N4作为聚乙二醇400(PEG400)添加剂对钢-钢摩擦副摩擦磨损性能的影响,并采用扫描电子显微镜及X射线光电子能谱仪分析试验后钢球磨损表面形貌、元素分布及典型元素的化学状态。结果表明,所制备的g-C3N4具有二维层状纳米结构,作为添加剂在PEG400中具有良好的减摩抗磨性能。SEM和XPS分析表明,在摩擦学过程中g-C3N4沉积在摩擦副表面形成了润滑保护膜,从而提高了PEG400的摩擦学性能。

    Abstract:

    Twodimensional 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 Xray diffraction (XRD).The tribological properties of the prepared g-C3N4 nanomaterial as an additive in PEG400 were evaluated with a fourball 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 antiwear 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 antiwear 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.

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  • 在线发布日期: 2018-02-27
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