中国有色金属学报(英文版)
Transactions of Nonferrous Metals Society of China
| Vol. 24 No. 11 November 2014 |
（1. Department of Oil Application and Management Engineering, Logistical Engineering University,
Chongqing 401311, China;
2. Department of Chemistry and Materials Engineering, Logistical Engineering University, Chongqing, 401311, China;
3. Ministry of Supplies and Oil, Chengdu Military Region, Chengdu 610015, China）
Abstract:Oleic acid (denoted as OA) surface-caped lanthanum borate nanorods, abbreviated as OA/LaBO3·H2O, were prepared via hydrothermal method. The microstructures of the as-prepared OA/LaBO3·H2O nanorods were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM) techniques. The friction and wear properties of OA/LaBO3·H2O nanorods in rapeseed oil were evaluated with a four-ball tribo-tester. The results show that the as-prepared OA/LaBO3·H2O nanorods are hydrophobic and display nanorods morphology with uniform diameter of about 50 nm and length of up to 500 nm. In the meantime, OA/LaBO3·H2O nanorods can obviously improve the anti-wear and friction-reducing capacities of rapeseed oil, and the optimal anti-wear and friction-reducing properties of rapeseed oil were obtained at an OA/LaBO3·H2O content of 1% (mass fraction).
Key words: lanthanum borate; nanorod; hydrophobicity; preparation; friction; wear; rapeseed oil
