摘要
在菜籽油(RO)分子中引入硫,合成了一种新型可生物降解的硫化菜籽油润滑添加剂(SRO),通过SRV摩擦磨损试验机考察了以菜籽油为基础油时SRO添加剂对GCr15钢-AZ91D镁合金摩擦副摩擦学性能的影响,用扫描电子显微镜观察分析镁块磨斑表面的形貌,同时对镁合金磨痕进行X射线光电子能谱分析。结果表明:以菜籽油为基础油时,SRO添加剂对钢-镁摩擦副具有优良的抗磨减摩性能;其润滑作用是由于长链菜籽油分子的载体作用、硫的高反应活性以及二者的协同作用,在摩擦金属表面形成了一层高强度的吸附膜和(或)摩擦化学反应膜。
A new type of biodegradable lube additive, sulphurized rapeseed oil（SRO） was prepared and its chemical structure was characterized by infrared spectrum. The friction and wear behavior of AZ91D magnesium alloy against GCr15 bearing steel under the lubrication of rapeseed oil formulated with SRO additive were evaluated on a SRV tribological tester. The morphological character and tribo-chemical species of the worn surfaces were analyzed by means of SEM and XPS. The results indicated that the friction and wear of the magnesium alloy-steel friction pair could be effectively reduced by using rapeseed oil lubricant with SRO additive. Its lubricating mechanism could be inferred that a high strength adsorption film and/or a tribo chemical reaction film were formed on the rubbing surfaces due to the carrier effect of rapeseed oil molecules having long chain, high reaction activity of sulfur and their synergism.
出处
《石油炼制与化工》
CAS
CSCD
北大核心
2011年第8期61-64,共4页
Petroleum Processing and Petrochemicals
基金
教育部新世纪优秀人才支持计划
国家自然科学基金资助项目(50975282)
关键词
摩擦化学
可生物降解润滑添加剂
硫化菜籽油
润滑机理
tribo chemistry
biodegradable lube additive
sulphurized rapeseed oil
lubricating mechanism
