架空导线防护润滑脂的制备及作用机理

石油炼制与化工 ›› 2023, Vol. 54 ›› Issue (8): 89-95.

架空导线防护润滑脂的制备及作用机理

张鹏强

中铁三局集团电务工程有限公司

收稿日期:2023-01-04 修回日期:2023-04-02 出版日期:2023-08-12 发布日期:2023-07-27
通讯作者: 张鹏强 E-mail:zhangpq1130@126.com

STUDY ON PREPARATION AND MECHANISMS OF PROTECTIVE GREASE FOR OVERHEAD CONDUCTOR

Received:2023-01-04 Revised:2023-04-02 Online:2023-08-12 Published:2023-07-27

摘要/Abstract

摘要： 为了研制一种具有减摩抗磨和抗腐蚀性能的润滑脂，提高架空导线的耐磨损和抗腐蚀性能，利用原位聚合法制备了核壳结构的二氧化硅-聚苯胺纳米添加剂，考察了二氧化硅-聚苯胺添加剂对聚脲润滑脂理化性能、抗腐蚀性能和摩擦学性能的影响，利用扫描电子显微镜（SEM）和X射线光电子能谱仪（XPS）对磨损表面进行表征分析。结果表明，所制备的核壳结构二氧化硅-聚苯胺添加剂为球形，粒径为80~100 nm；当二氧化硅-聚苯胺的质量分数为3%时，润滑脂具有较好的抗腐蚀和减摩抗磨性能，分析表明润滑脂的抗腐蚀性能主要归因于聚苯胺的钝化作用机制，减摩抗磨性能主要取决于“修补效应”、“滚动效应”、表面润滑保护膜等多种减摩抗磨机制的协同作用。

关键词: 润滑脂, 核壳结构, 抗腐蚀, 减摩抗磨, 架空导线

Abstract: In order to develop a lubricating grease with good anti-friction, anti-wear and corrosion resistance to improve the wear resistance and corrosion resistance of overhead conductors, the core-shell structured silicon dioxide polyaniline nano-additive was prepared by in-situ polymerization method. The effect of silicon dioxide polyaniline additives on the physical and chemical properties, corrosion resistance and tribological properties of polyurea lubricating grease were investigated. The worn surface was characterized by scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS). The results showed that the prepared silicon dioxide polyaniline additive with core-shell structure was spherical with a particle size of 80-100 nm. When the mass fraction of silicon dioxide polyaniline was 3%, the grease had good corrosion resistance, friction reduction and anti-wear properties. The analysis showed that the corrosion resistance of the grease was mainly attributed to the passivation mechanism of polyaniline, and the friction reduction and anti-wear properties mainly depended on the synergistic effect of multiple friction reduction and anti-wear mechanisms, such as "repair effect", "rolling effect", surface lubrication protective film, etc.

Key words: lubricating grease, core-shell structure, corrosion resistance, friction reduction and anti-wear, overhead conductor

张鹏强. 架空导线防护润滑脂的制备及作用机理[J]. 石油炼制与化工, 2023, 54(8): 89-95.

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