膨润土-复合锂基润滑脂的制备及性能研究  

Preparation and Properties of Bentonite-Lithium Complex Grease

作　　者：杨姝 陈夕全 王伟[1] 李博[1] Yang Shu;Chen Xiquan;Wang Wei;Li Bo(Wuhan Institute of Technology,Wuhan 430200,China)

机构地区：[1]武汉工程大学,湖北武汉430200

出　　处：《山东化工》2020年第6期29-32,34,共5页Shandong Chemical Industry

摘　　要：为了在提高复合锂基润滑脂的综合性能下同时减少皂基润滑脂的含量,采用矿物油(68#导轨油)为基础油,以12-羟基硬脂酸、癸二酸、有机膨润土、单水氢氧化锂为稠化剂原料,制备了膨润土-复合锂基润滑脂。结果表明:当添加30%,膨润土含量为20%的膨润土润滑脂时,膨润土-复合锂基润滑脂综合性能最好,其滴点为255.5℃、锥入度为269/10-1 mm、钢网分油为1.24%。扫描电镜表明膨润土润滑脂与复合锂基润滑脂之间产生的分子间氢键可以使皂纤维产生更加致密的结构,出现的类似于“干木耳”状的结构,增加了皂纤维与基础油的接触面积,从而增加了与基础油之间的作用力。In order to reduce the content of soap-based grease while improving the comprehensive performance of composite lithium-based grease,mineral oil(68#rail oil),and 12-hydroxystearic acid,sebacic acid,organic bentonite,Water lithium hydroxide was used as raw material for thickener to prepare bentonite-composite lithium-based grease.The results show that when adding bentonite grease with 30%and bentonite content of 20%,the comprehensive performance of bentonite-composite lithium-based grease is the best.Its dropping point is 255.5℃,cone penetration is 269/10-1 mm,steel mesh The oil is 1.24%.Scanning electron microscopy showed that the intermolecular hydrogen bonds between the bentonite grease and the lithium complex grease can make the soap fiber have a denser structure,and a structure similar to"dry fungus"appeared,increasing the soap fiber and base oil.The contact area increases the force between the base oils.

关 键 词：复合锂基润滑脂 膨润土润滑脂 滴点 钢网分油 

分 类 号：TE626.4[石油与天然气工程—油气加工工程]