材料科学与工程学报2025，Vol.43Issue(3)：405-414,10.DOI:10.14136/j.cnki.issn1673-2812.2025.03.009
可生物降解锂基润滑脂的制备及其性能
Preparation and Properties of Biodegradable Lithium Grease
摘要
Abstract
Using soybean oil,rapeseed oil,and castor oil as raw materials and common mineral oil 150N as control,lithium grease was prepared by pre-soap method with the same soap content,and the effects of the physical and chemical properties,rheological properties,biodegradability and tribological properties of the prepared grease were studied.The results showed that the viscosity of the base oil was correlated with the rheological and tribological properties of the grease.The thinner the consistency of the grease and the higher the viscosity of the base oil,the lower the structural strength of the grease,the better the thixotropy performance,and the better the antifriction performance.Through biodegradation experiments,it was found that vegetable oil lithium grease was better than mineral oil lithium grease,and the biodegradation rate of castor oil lithium-based grease was the best,up to 79.69％.According to the XPS analysis of the wear surface,the castor oil lithium base grease works together through the physical adsorption film and the subsequent chemical reaction film during the friction process,to achieve the anti-friction effect.Among the three biodegradable lithium greases,castor oil lithium-based grease colloid has poor stability,but it has excellent thixotropy,biodegradability,and tribological properties.关键词
植物油/锂基润滑脂/流变性能/摩擦学性能/生物降解性能Key words
Vegetable oil/Lithium grease/Rheological properties/Tribological properties/Biodeg-radability分类
化学化工引用本文复制引用
杨珊珊,张利,来冰冰,王晓波,刘宗柱,娄文静..可生物降解锂基润滑脂的制备及其性能[J].材料科学与工程学报,2025,43(3):405-414,10.基金项目
山东省泰山学者青年专家计划项目(2022CXGC020309)和山东省重点研发计划项目(2020CXGC011002) （2022CXGC020309）
