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日用化学工业（中英文）

日用化学工业（中英文） ›› 2025, Vol. 55 ›› Issue (1): 1-11.doi: 10.3969/j.issn.2097-2806.2025.01.001

• 特邀专稿 •    下一篇

含硼共聚物：一类环保型润滑油添加剂

薛华1,梁逢春1,杨维利1,贺群1,蔡美荣2,*(),周峰2,卜伟锋1,2,*()   

  1. 1.兰州大学 甘肃省有色金属化学与资源利用重点实验室，功能有机分子化学国家重点实验室，化学化工学院，甘肃 兰州 730000
    2.中国科学院兰州化学物理研究所 固体润滑国家重点实验室，甘肃 兰州 730000
  • 收稿日期:2024-08-04 出版日期:2025-01-22 发布日期:2025-01-23
  • 基金资助:
    国家自然科学基金资助项目(52073130);国家自然科学基金资助项目(92161126)

Boron-containing copolymers as environmentally friendly lubricant additives

Hua Xue1,Fengchun Liang1,Weili Yang1,Qun He1,Meirong Cai2,*(),Feng Zhou2,Weifeng Bu1,2,*()   

  1. 1. Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, State Key Laboratory of Applied Organic Chemistry, and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, China
    2. State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China
  • Received:2024-08-04 Online:2025-01-22 Published:2025-01-23
  • Contact: E-mail: caimr@licp.cas.cn （Meirong Cai）; buwf@lzu.edu.cn （Weifeng Bu）.

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摘要：

随着人们对限制有害排放的日益关注，开发无硫、无磷的绿色润滑油添加剂已变得极为必要。虽然硼基小分子化合物作为绿色润滑油添加剂已被广泛研究，但其大分子类似物却鲜少用于环境友好的润滑油添加剂。本文以甲基丙烯酸硬脂酸酯和异丙烯基硼酸频哪醇酯为原料，通过自由基共聚合成了一系列不同投料比的含硼共聚物（Sn-r-Bm, n=1, m=1/3, 1, 2, 3, 5, 9）。所得的Sn-r-Bm共聚物可均匀分散于基础油PAO-10中，形成胶束状聚集体，其流体动力学直径在9.7~52 nm范围内。SRV-IV振荡往复摩擦试验表明，与PAO-10相比，共聚物基础油分散液的摩擦系数和磨损体积分别降低了62%和97%。此外，S1-r-B1的基础油溶液表现出（850±100） N的优异承载能力。这些优越的润滑性能源于在润滑钢表面形成由Sn-r-Bm、硼氧化物和氧化铁组成的保护摩擦膜。因此，含硼共聚物可以看作是一类新型的不含硫、磷元素的高效减摩抗磨的环保型润滑油大分子添加剂。

关键词: 减摩抗磨, 润滑油添加剂, 含硼共聚物, 聚合

Abstract:

Increasing environmental concerns about limiting harmful emissions has necessitated sulfur-and phosphorus-free green lubricant additives. Although boron-containing compounds have been widely investigated as green lubricant additives, their macromolecular analogs have been rarely considered yet to develop environmentally friendly lubricant additives. In this work, a series of boron-containing copolymers have been synthesized by free-radical copolymerization of stearyl methacrylate and isopropenyl boronic acid pinacol ester with different feeding ratios （Sn-r-Bm, n=1, m=1/3, 1, 2, 3, 5, 9）. The resulting copolymers of Sn-r-Bm （n=1, m=1/3, 1, 2, 3, 5） are readily dispersed in the PAO-10 base oil and form micelle-like aggregates with hydrodynamic diameters ranging from 9.7 to 52 nm. SRV-IV oscillating reciprocating tribological tests on ball-on-flat steel pairs show that compared with the base oil of PAO-10, the friction coefficients and wear volumes of the base oil solutions of Sn-r-Bm decrease considerably up to 62% and 97%, respectively. Moreover, the base oil solution of S1-r-B1 exhibits an excellent load-bearing capacity of （850±100） N. These superior lubricating properties are due to the formation of protective tribofilms comprising Sn-r-Bm, boron oxide, and iron oxide compounds on the lubricated steel surface. Therefore, the boron-containing copolymers can be regarded as a novel class of environmentally friendly lubricating oil macroadditives for efficient friction and wear reduction without sulfur and phosphorus elements.

Key words: friction and wear reduction, lubricant additives, boron-containing copolymers, polymerization

中图分类号: 

  • TE624