三种碳纳米结构改性基础油的摩擦学性能  

Tribological Properties of Base Oils Modified by Three Styles of Carbon Nanostructures

作　　者：陆紫嫣 黄飞[3] 胡坤宏[2] 

机构地区：[1]合肥学院生物与环境工程系,安徽合肥230601 [2]合肥学院化学与材料工程系,安徽合肥230601 [3]合肥学院机械工程系,安徽合肥230601

出　　处：《润滑油》2018年第1期39-45,共7页Lubricating Oil

基　　金：国家自然科学基金(批准号:51375139);安徽省杰出青年基金(批准号:1508085J10);安徽高校自然科学研究项目重点项目(批准号:KJ2016A595)

摘　　要：将三种不同碳纳米结构(氨基化多壁碳纳米管、羟基化多壁碳纳米管与多层氧化石墨烯)作为添加剂,分别加入到三种不同类的基础油(聚α-烯烃油、癸二酸二异辛酯与液体石蜡)中,然后在高频往复试验机上测试上述油样的摩擦学性能,同时还探究了三种碳纳米材料在CD 15W-40柴油机油中的效果。结果表明:三种碳纳米结构在聚α-烯烃油与癸二酸二异辛酯中的效果不好,在液体石蜡中的效果较好,其中羟基化多壁碳纳米管润滑性能最好,这是因为它在液体石蜡中分散性良好,易于进入摩擦界面形成润滑膜;三种碳纳米材料在CD 15W-40柴油机油中有效果但都不显著。Three different carbon nanostructures（ amino multi-walled carbon nanotubes,hydroxylated multi-walled carbon nanotubes,few layered graphene oxide） were used as additives to modify three different types of base oils（ polyalphaolefin,diisooctyl sebacate and liquid paraffin）. The tribological properties of oil samples were tested on a high frequency reciprocating rig. Moreover,it also was explored the effect of three carbon nanostructures on the lubrication of CD 15 W-40 diesel engine oil. Results showed that the tribological performances of the three carbon nanostructures are good in liquid paraffin but poor in both polyalphaolefin and diisooctyl sebacate. The hydroxylated multi-walled carbon nanotubes present the best friction reduction and wear resistance in liquid paraffin among the three carbon nanostructures. This is ascribed to the good dispersivity of hydroxylated multi-walled carbon nanotubes in liquid paraffin and the formation of a lubricating film on friction interface. The three carbon nanostructures can slightly improve the lubricating performance of CD 15 W-40 diesel engine oil.

关 键 词：碳纳米管 氧化石墨烯 基础油 润滑性能 摩擦磨损 

分 类 号：TE624.82[石油与天然气工程—油气加工工程]