超声和微波辅助球磨引入的添加剂在油中的分散稳定性和摩擦学性能。
Dispersion stability and tribological properties of additives introduced by ultrasonic and microwave assisted ball milling in oil.
作者信息
Wang Siyuan, Chen Ding, Chen Yaotong, Zhu Kaiji
机构信息
State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University 410082 Changsha China
College of Materials Science and Engineering, Hunan University 410082 Changsha China.
出版信息
RSC Adv. 2020 Jul 2;10(42):25177-25185. doi: 10.1039/d0ra03414b. eCollection 2020 Jun 29.
Graphene and MoS were modified by organic molecules to obtain modified reduced graphene oxide (MRGO) and modified molybdenum disulfide (MMD) powders. MRGO and MMD were uniformly dispersed in base oil (PAO6) by ultrasonic and microwave assisted ball milling (UMBM). This study tested the dispersion stability and tribological properties of additives in the oil, and analyzed the elements of the friction surface. Besides, the mechanism of anti-friction and anti-wear was discussed. The results show that the UMBM method is an effective way to introduce additives in lubricating oil. Compared with direct addition, it can effectively improve the dispersion stability of additives in the oil, so that additives can be better deposited and adsorbed on the friction surface in the friction process, and improve the tribological properties of lubricating oil.
通过有机分子对石墨烯和二硫化钼进行改性，以获得改性还原氧化石墨烯（MRGO）和改性二硫化钼（MMD）粉末。通过超声和微波辅助球磨（UMBM）将MRGO和MMD均匀分散在基础油（PAO6）中。本研究测试了添加剂在油中的分散稳定性和摩擦学性能，并分析了摩擦表面的元素。此外，还讨论了减摩抗磨机理。结果表明，UMBM方法是在润滑油中引入添加剂的有效方法。与直接添加相比，它可以有效提高添加剂在油中的分散稳定性，使添加剂在摩擦过程中更好地沉积和吸附在摩擦表面，从而提高润滑油的摩擦学性能。
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