含硼苯并噻唑酯类化合物在菜籽油中的摩擦学性能研究

合成了两种含不同烷基链的含硼苯并噻唑酯类化合物，即二正己氧基-2-[(2-苯并噻唑基)硫代]乙氧基甲硼烷(BNS-1)和二环己氧基-2-[(2-苯并噻唑基)硫代]乙氧基甲硼烷(BNS-2)。分别考察了其油溶性及抗腐蚀性能。利用四球摩擦磨损试验机考察了其在菜籽油(RSO)中的摩擦学性能。采用扫描电子显微镜（SEM）分析了磨斑表面的形貌。结果表明，含硼苯并噻唑酯类化合物具有良好的油溶性和抗腐蚀性能，可以显著提高菜籽油的承载能力；BNS-2比BNS-1的减摩抗磨作用更为突出，说明含硼苯并噻唑类化合物的摩擦学性能随分子结构不同而存在一定差异，分子内存在环烷基的该类化合物具有更好的摩擦学性能。

STUDY ON THE TRIBOLOGICAL PERFORMANCE OF BENZOTHIAZOLE ESTER COMPOUNDS CONTAINING BORON IN RAPESEED OIL

Two benzothiazole ester compounds containing boron with different alkyl chain,Di-n-hexyl-[2-(2-benzothiazolylthio)]ethyl boric acid ester(BNS-1)and Dicyclohexyl-[2-(2-benzothiazolylthio)]ethyl boric acid ester(BNS-2),were synthesized and their tribological performance as additives in rapeseed oil(RSO)was investigated using a four-ball testing machine.The anticorrosive properties and oil solubility of these compounds were tested as well.The worn surfaces of the steel ball tested were analyzed by means of scanning electron microscopy(SEM).As a results, benzothiazole ester compounds containing boron as RSO additives exhibited good oil-soluble and anticorrosive properties,as well as enhanced load-carrying capacity.The tribological performance of BNS-2 containing naphthenic groups was even better than that of BNS-1 containing alkyl groups, which indicated that the tribological performance varied with the various molecular structures of the derivatives in RSO.