摘要
合成了两种烷基硫代磷酸咪唑盐离子液体(分别记为PS8-8和PS8-12),将2种离子液体作为酯类半合成基础油无灰抗磨添加剂,并研究了其摩擦学性能。通过SRV-Ⅳ摩擦磨损试验机评价其摩擦学性能,采用三维轮廓仪观察磨斑形貌并计算出磨损体积,采用X射线光电子能谱仪分析磨斑表面元素的化学状态。结果表明,加入咪唑盐抗磨剂后,半合成油的摩擦因数从0.085降至0.034,磨斑磨损体积从84.2×10^(-5) mm^3降至20.6×10^(-5) mm^3,显示出优异的摩擦学性能,为离子液体的实际应用找到了一种有效的方法。
Ionic liquids have excellent tribological properties, but they can＇t dissolve in mineral oils and other nonpolar base oil, which limits their practical application. Two kinds of ionic liquids were synthesized and dissolved in esters semi-synthetic base oil as anti-wear additives and the tribological properties were evaluated by SRV Ⅳ oscillating friction and wear tester. The surface maps and wear volume of lower discs were measured by micro-3D surface mapping microscope. The chemical composi- tion on the surface of wear scars were analyzed by X-ray photoelectron spectroscopes. The results indi- cate that the application of imidazolium dithiophosphates makes the semi-synthetic base oil decrease the friction coefficient from 0. 085 to 0. 034 and the wear volume from 84.2 × 10 -5mm3 to 20.6 × 10-5 mm3. This work provides an effective method for the practical application of ionic liquids.
出处
《石油炼制与化工》
CAS
CSCD
北大核心
2016年第8期70-74,共5页
Petroleum Processing and Petrochemicals
关键词
离子液体
酯类半合成油
抗磨添加剂
ionic liquid
semi-synthetic esters base oil
anti-wear additive
