ZnS纳米添加剂对复合钙基润滑脂润滑性能的影响及作用机理研究  

Study on the effect of ZnS nano additive on the lubrication performance of complex calcium-based grease and its mechanism

作　　者：谢龙 卢智聪 孔晓伟 陈利伟 罗海棠 XIE Long;LU Zhi-cong;KONG Xiao-wei;CHEN Li-wei;LUO Hai-tang(Shanxi Key Laboratory of Phytochemistry,College of Chemistry and Chemical Engineering,Baoji University of Arts and Sciences,Baoji 721013,Shaanxi,China;Nato Lubrication Technology Jiangsu Co.,Ltd,Nantong 226400,Jiangsu,China)

机构地区：[1]宝鸡文理学院化学化工学院,陕西省植物化学重点实验室,陕西宝鸡721013 [2]纳拓润滑技术江苏有限公司,江苏南通226400

出　　处：《宝鸡文理学院学报（自然科学版）》2023年第3期41-47,共7页Journal of Baoji University of Arts and Sciences(Natural Science Edition)

基　　金：陕西省中小企业合作项目(2023-KJHX022)。

摘　　要：目的 将ZnS纳米材料作为复合钙基润滑脂的极压、抗磨、减摩添加剂,研究其在钢/钢摩擦副上的摩擦学性能及润滑性能,并分析其润滑作用机理。方法 采用微乳液合成的方法制备了ZnS纳米粒子,通过加入功能交联剂改善普通复合钙基润滑脂的性能,利用流变仪测试其模量,触变性考察添加剂对其结构的影响,并利用SRV-V微动振动摩擦磨损试验机、三维表面轮廓仪考察其摩擦学性能,采用X射线光电子能谱仪探究其润滑作用机制。结果 纳米ZnS作为添加剂具有良好的减摩抗磨性能;添加量为1%可以有效改善钙基润滑脂的摩擦学性能,而纳米ZnS的添加量达到2%时,其减摩抗磨效果非常显著;XPS结果表明在摩擦过程中润滑剂与钢表面发生了摩擦化学反应,形成了FeO,FeS和Fe_(2)(SO_(4))_(3)等物质的摩擦化学反应膜。结论 纳米ZnS作为钙基润滑脂的添加剂,可改善其对钢/钢摩擦副的润滑性能,且添加剂的加入基本上没有破坏润滑脂的胶体结构。Purposes—To investigate the tribological and lubrical properties of ZnS nanoparticles as additives in calcium-based grease for steel/steel friction pair,and analyze the lubrication mechanism.Methods—ZnS nanoparticle was prepared by micro lotion synthesis and the properties of ordinary calcium complex grease was improved by adding functional crosslinking agent.Rheometer was used to measure its modulus and thixotropy to investigate the influence of additives on its structure.The tribological properties of the additive were investigated by SRV-V micro-vibration friction and wear tester and 3D surface profiler.The lubrication mechanism was explored by X-ray photoelectron spectroscopy(XPS).Results—Studies have shown that ZnS nanoparticles as additive has good anti-friction and anti-wear properties.1%ZnS additive can effectively improve the tribological properties of calcium-based grease,and the ZnS nanoparticle additive at 2%can play a certain anti-friction effect.The XPS results show that the tribochemical reaction occurred with lubricant and steel surface during the friction process,forming the tribochemical reaction films of FeO,FeS and Fe_(2)(SO_(4))_(3).Conclusions—ZnS nanoparticle as additive of calcium-based grease can improve its lubrication performance on steel/steel friction pairs,and the addition of additive has basically not damaged the colloidal structure of the lubricating grease.

关 键 词：纳米ZnS粒子 钙基润滑脂 摩擦学性能 流变性能 

分 类 号：O69[理学—化学]