重型机械Issue(5)：43-50,8.
聚四氟乙烯纳米添加剂润滑油的摩擦学性能研究
Investigation of the tribological performance of polytetrafluoroethylene(PTFE)nanoparticle additives in lubricating oils
摘要
Abstract
To enhance the lubrication performance of compressor oils under extreme operating conditions,this study employed polytetrafluoroethylene(PTFE)nanoparticles as protective additives.Nanocomposite lubricants with varying volume fractions(0.5-3 vol%)of PTFE were prepared via ultrasonic dispersion and systematically investigated for their dispersion stability,tribological properties,and physicochemical characteristics.Experimental results demonstrated that at 2 vol%PTFE,the nanoparticles exhibited exceptional dispersion stability in the base oil.Under a 1 kN load,the friction coefficient of the lubricant decreased by 22.5%,accompanied by shortened oil film rupture time and significantly improved extreme-pressure(EP)performance.At low temperature(20℃),the viscosity increased by 26.09%with PTFE addition,while minimal viscosity variation occurred at high temperature(80℃),confirming its wide-temperature applicability.Improvements in acid number and copper strip corrosion rating(from Class 1b to 1a)validated enhanced oxidation resistance and anti-corrosion capabilities.FTIR analysis revealed no chemical structural changes in the base oil after PTFE incorporation.The on-site experimental test results demonstrate that the addition of PTFE protective fluid reduced the electrical energy consumption per unit output of shale gas by 13.25%.关键词
聚四氟乙烯/纳米润滑油/分散稳定性/摩擦学性能/理化性能Key words
polytetrafluoroethylene(PTFE)/nano-enhanced lubricants/dispersion stability/tribological performance/physicochemical properties分类
机械制造引用本文复制引用
张波,曹淦铭,邓天地,熊佞丹,雷英,蒋伟,段华美..聚四氟乙烯纳米添加剂润滑油的摩擦学性能研究[J].重型机械,2025,(5):43-50,8.基金项目
国家自然科学基金(52074051) （52074051）
