中文摘要：

本文作者通过两步法合成一种含酯基的功能化离子液体1-乙酸乙酯基苯并三氮唑四氟硼酸盐,采用傅里叶红外光谱仪对其进行结构表征.采用四球摩擦磨损试验机测其在葵花籽油中的摩擦学性能,并与基础油进行对比.采用光学显微镜,扫描电子显微镜（SEM）和X射线光电子能谱仪（XPS）分别对钢球磨斑表面形貌和主要元素进行观察和分析.结果表明：该离子液体在葵花籽油中表现出良好的减摩抗磨效果;与基础油相比,当离子液体质量分数为1.5%时,摩擦系数和磨斑直径均达到最小值,分别减少了42.9%和33.3%.XPS结果表明摩擦过程中在接触面形成一层摩擦保护膜.

英文摘要：

In this work, a new kind of functionalized ionic liquid （IL） containing ester-group, 1-ethoxycarbonylmethyl benzotrizaole terafluoroborate, was synthesized through a typical two-step way and characterized by Fourier Transform infrared spectroscopy. Tribological experiments were performed on a four-ball friction and wear tester with as-prepared IL lubricant mixtures, and compared with neat sunflower oil. The morphologies and main elements of the worn surfaces were observed and evaluated by optical microscopy, scanning electron microscope（SEM）and X-ray photoelectron spectroscopy（XPS）. The results show that the prepared IL possessed excellent friction-reducing and anti-wear properties. When the addition concentration was 1.5%, the friction coefficient and the wear scar diameter were both smallest, and decreased by 42.9% and 33.3%, respectively, as compared to the base oil without ionic liquid. XPS results demonstrate that a protective triblo-film was formed on the contact surface during friction progress.