Preparation and Tribological Properties of Nano-Calcium Metaborate/Reduced Graphene Lubricant Additive
GUO Jingyao1,2, HOU Xianbin1,2, WEI Yukun1,2, DAI Leyang1,2, LIAO Haifeng1,2, SUN Di1,2
1 Fujian Provincial Key Laboratory of Naval Architecture and Ocean Engineering, School of Marine Engineering, Jimei University, Xiamen 361021, China 2 Fujian Shipping Research Institute of Jimei University, Xiamen 361021, China
Abstract: In order to study the preparation of surface modified nano-calcium metaborate/reduced graphene lubricant additives, nano-calcium metaborate/reduced graphene composite powders were prepared by plasma assisted ball milling with calcium metaborate and reduced graphene as raw materials and oleic acid as modifier, thier tribological properties were tested. The morphologies of nano-calcium metaborate/reduced graphene composites were observed by scanning electron microscope, transmission electron microscope, X-ray diffractometer and infrared spectrometer. The surface of the friction pair was tested by shape measuring laser microscope and scanning electron microscope. Oil samples were detected by MOA Ⅱ oil analysis spectrometer. The results indicated that under the synergistic effect of ball milling and plasma heat effect, the calcium metaborate powder pre-milled for 10 h were refined to about 10 nm and uniformly loaded on the reduced grapheme after subsequent assisted ball milling for 10 h. The surface of calcium metaborate particles was heated rapidly by plasma and thermal explosion was caused, so part of the calcium metaborate powder splashed on the reduced graphene, which was then coated into a spherical composite structure. Plasma assisted ball milling introduced carboxyl groups on the surface of calcium metaborate after 10 h pre-milling and conducted an ester reaction with the hydroxyl group on the surface of reduced grapheme during subsequent 10 h milling. The surface modification of calcium metaborate and reduced graphene by oleic acid was in-situ completed successfully, and the prepared nano-calcium metaborate/reduced graphene composite powders had good dispersion in 5w-40 base oil. In the process of friction, the reduced graphene adsorbed on the friction surface due to its large specific surface area, and spherical nano-calcium metaborate coated by reduced graphene made the rolling friction of multi-activity centers on the friction pair surface, thereby the anti-friction and anti-wear performance of the composite oil was effectively improved.
1 Yan X P, Li Z X, Zhang Y L, et al. China Mechanical Engineering,2013,24(10),1413(in Chinese). 严新平,李志雄,张月雷,等.中国机械工程,2013,24(10),1413. 2 Guo Z W,Yuan C Q, Bai X Q, et al. Chinese Journal of Mechanical Engineering,2018,31(3),158. 3 Wang X, Li Y, Liu J S, et al. Acta Petrolei Sinica,2018,34(2),229. 4 Liu X B. Study on Graphene Lubricant Additive and Its Tribological Pro-perties on Internal Combustion Engine. Master’s Thesis, Tianjin University, China,2017(in Chinese). 刘向波.石墨烯润滑油添加剂及其内燃机摩擦学性能研究.硕士学位论文,天津大学,2017. 5 Liñeira D R J M, López E R, Fernández J, et al. Journal of Molecular Liquids,2019,274,568. 6 Patel J, Kiani A. Lubricants,2019,7(2),11. 7 Qiao Y L, Zhao H C, Cui Q S, et al. Materials Reports A:Review Papers,2013,27(19),34(in Chinese). 乔玉林,赵海朝,崔庆生,等.材料导报:综述篇,2013,27(19),34. 8 Feng Y H, Fang J H, Wu J, et al. Surface Technology,2019,48(12),189(in Chinese). 冯彦寒,方建华,吴江,等.表面技术,2019,48(12),189. 9 Ba Z W, Huang G W, Qiao D, et al. Tribology,2019,39(2),140(in Chinese). 巴召文,黄国威,乔旦,等.摩擦学学报,2019,39(2),140. 10 Wu B, Song H, Li C, et al. Tribology International,2020,141,105951. 11 Ji X B, Chen Y X, Du Q L. Lubrication Engineering,2015,40(4),58(in Chinese). 纪献兵,陈银霞,杜庆丽.润滑与密封,2015,40(4),58. 12 Yang T F, Wang X B, Sen M, et al. Industrial Lubrication and Tribology,2018,70(1),105. 13 Li J S, Hao L F, Xu X H, et al. China Surface Engineering,2010,23(3),29(in Chinese). 李久盛,郝利峰,徐小红,等.中国表面工程,2010,23(3),29. 14 戴乐阳,孟荣刚,陈景锋,等.中国专利,ZL201410068071.5,2015-05-06. 15 Lang C G, Ouyang L Z, Yang L L, et al. International Journal of Hydrogen Energy,2018,43(36),17346. 16 Yang X P, Dai L Y, Zeng M Q, et al. Materials Reports,2010,24(S1),320(in Chinese). 杨小平,戴乐阳,曾美琴,等.材料导报,2010,24(S1),320. 17 Yan J, Dai L Y, Meng R G, et al. Tribology,2016,36(1),20(in Chinese). 闫锦,戴乐阳,孟荣刚,等.摩擦学学报,2016,36(1),20. 18 Zhu M, Lu Z C, Hu R Z, et al. Acta Metallurgica Sinica,2016,52(10),1239(in Chinese). 朱敏,鲁忠臣,胡仁宗,等.金属学报,2016,52(10),1239. 19 Ji X B,Chen Y X. Lubrication Engineering,2015,40(7),75(in Chinese). 纪献兵,陈银霞.润滑与密封,2015,40(7),75. 20 Yang M N, Fan S L, Huang H Y, et al. International Journal of Biological Macromolecules, 2020,156,280. 21 Ma D Y, Wang C M, Li X X, et al. Acta Photonica Sinica,2018,47(3),69(in Chinese). 马德跃,王成名,李晓霞,等.光子学报,2018,47(3),69. 22 Xu L H, Zhang Y, Zhang D K, et al. Industrial Lubricationand Tribology,2018,70(9),1684. 23 Kang Y. Acetaldehyde Acetic Acid Chemical Industry,2014(11),25(in Chinese). 康永.乙醛醋酸化工,2014(11),25. 24 Pu J B, Wang L P, Xue Q J. Tribology,2014,34(1).93(in Chinese). 蒲吉斌,王立平,薛群基.摩擦学学报,2014,34(1),93. 25 Adams J H. Lubrication Engineering,1977,33(5),241.
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2021, Vol. 35 
