中长链脂肪酸酯润滑基础油的摩擦学性能研究  

Study on the tribological properties of ester as lubricant base oil

作　　者：程忠[1] 吴莉[2] 温瑞瑞[1] 王锐涛[1] 高新蕾[1] 

机构地区：[1]武汉轻工大学化学与环境工程学院,武汉430023 [2]武汉工程大学化工与制药学院绿色化工过程省部共建教育部重点实验室湖北省新型反应器与绿色化学工艺重点实验室,武汉430073

出　　处：《华中师范大学学报（自然科学版）》2013年第6期797-800,共4页Journal of Central China Normal University：Natural Sciences

基　　金：国家自然科学基金项目(51075309)

摘　　要：将5种脂肪酸(癸酸、月桂酸、肉豆蔻酸、棕榈酸、硬脂酸)分别与1,4-丁二醇和甘油进行酯化反应得到一系列中长碳链脂肪酸酯.采用四球摩擦磨损试验机,考察了不同碳链的脂肪酸酯的PB值,磨斑直径和摩擦系数.结果表明:在所考察的脂肪酸酯中,脂肪酸酯的PB值随着脂肪酸碳链的增加都有显著的提高,且脂肪酸丁二酯的承载能力要优于脂肪酸甘油三酯;在长磨试验中,低载荷下,随着脂肪酸碳链的增加,脂肪酸甘油三酯的摩擦系数和磨斑直径均呈下降的趋势;在中等载荷下,脂肪酸甘油三酯要比脂肪酸丁二酯容易发生卡咬;在高载荷下,脂肪酸丁二酯的摩擦性能要好于脂肪酸甘油三酯,其中肉豆蔻酸丁二酯具有良好的抗磨减摩作用.A series of mid-long carbon chain fatty acid esters were synthesized by five kinds of fatty acids（capric acid,lauric acid,myristic acid,palmitic acid and stearic acid）reacting with 1,4-butanediol and glycerin respectively.The PB values,wear scar diameters and friction coefficients of esters are tested by four-ball friction machine.The results show that PB values of esters improve significantly with the increasing of carbon chain of fatty acids.Carrying capacity of fatty acid butanediol esters are better than fatty acid triglycerides; Under the low load,the wear scar diameters and friction coefficients of fatty acid triglycerides decrease with the increasing of carbon chain of fatty acids; Under the moderate load,fatty acid triglycerides can be seized more easily than fatty acid butanediol esters; Under the high loads,the tribology properties of fatty acid butanediol esters are better than fatty acid triglycerides,and the myristic acid butanediol ester has a good antiwear and friction-reducing performance.

关 键 词：脂肪酸酯 润滑 摩擦 抗磨 卡咬 

分 类 号：TB30[一般工业技术—材料科学与工程]