引用本文:李久盛,郝利峰,徐小红,张立.表面修饰纳米硼酸钙的制备及摩擦学性能[J].中国表面工程,2010,(3):29~32
LI Jiu-sheng,HAO Li-feng,XU Xiao-hong,ZHANG Li.Preparation and Tribological Properties of Surface Modified Calcium Borate Nanoparticles[J].China Surface Engineering,2010,(3):29~32
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表面修饰纳米硼酸钙的制备及摩擦学性能
李久盛,郝利峰,徐小红,张立1,2
1. 中国石油 兰州润滑油研究开发中心，兰州 730060;2. 上海交通大学 化学化工学院, 上海 200240
摘要:
制备了表面修饰油酸的纳米硼酸钙添加剂,利用XRD、TEM和IR对其形貌及结构进行了表征,采用离心分离法考察了纳米硼酸钙在润滑油中的稳定性,在四球摩擦磨损试验机和SRV试验机上考察了油品的抗磨减摩性能,并用X射线光电子能谱(XPS)探讨了其润滑机理.结果表明:纳米硼酸钙添加剂具有良好的分散性、稳定性和抗磨减摩性能;沉积膜和反应膜的生成对抗磨减摩性能有决定作用.
关键词:  纳米粒子  硼酸钙  油溶性  摩擦学性能
DOI：
分类号:
基金项目:国家973计划资助项目（2007CB607606）
Preparation and Tribological Properties of Surface Modified Calcium Borate Nanoparticles
LI Jiu-sheng,HAO Li-feng,XU Xiao-hong,ZHANG Li1,2
1. Petrochina Lanzhou Lubricating Oil R&D Institute, Lanzhou 730060;2. School of Chemistry and Chemical Engineering, Shanghai Jiaotong University, Shanghai 200240
Abstract:
Calcium borate nanoparticles modified by oleic acid (OA) were successfully synthesized and its microstructure was characterized by X–ray power diffraction (XRD), transmission electron microscope (TEM) and infrared spectra (IR). Tribological properties of the prepared nanoparticles in base oil were evaluated on four–ball tribometer and SRV tester. The results indicate that the surface–modified nanoparticles is amorphous with the average size in the range of 50~200 nm. The modified nanoparticles show good antiwear and friction–reducing property in base oil. The worn surface of the steel ball was investigated by X–ray photoelectron spectroscopy (XPS), and the tribological mechanism of the nanoparticles was discussed preliminarily.
Key words:  nanoparticle  calcium borate  oil–solubility  tribological property
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