蛇纹石粉体的热处理及其对基础油摩擦学性能的影响  

HEAT TREATING SERPENTINE POWDER AND ITS EFFECT ON THE TRIBOLOGICAL PROPERTIES OF LUBE BASE OIL

作　　者：郑威[1] 张振忠[1] 赵芳霞[1] 徐丹丹[1] 

机构地区：[1]南京工业大学材料科学与工程学院,南京210009

出　　处：《石油炼制与化工》2013年第3期71-74,共4页Petroleum Processing and Petrochemicals

基　　金：江苏省科技厅社会发展计划项目(BS2007120);国家中小型企业创新基金项目(08026213700982);江苏高校优势学科建设工程项目;南京工业大学无机及复合新材料重点实验室资助项目

摘　　要：为提高超细蛇纹石粉体润滑油添加剂的摩擦学性能及其与摩擦副的结合强度,在测定蛇纹石粉体差热-热重曲线的基础上研究了热处理温度对超细蛇纹石粉体组成及晶体结构的影响,并将不同温度下热处理的蛇纹石粉体添加至润滑油基础油中,研究其对基础油摩擦学性能的影响。结果表明:随蛇纹石粉体热处理温度的升高,粉体会逐渐脱除吸附水、层间水和结构水,且在高温下伴随着结构水的脱除,蛇纹石会分解生成镁橄榄石及二氧化硅;经200℃热处理的蛇纹石粉体可以明显提高润滑油性能,与基础油相比,含蛇纹石粉体1%(w)的基础油的摩擦因数和钢球磨斑直径均明显降低,且具有自修复作用。In order to improve the tribological properties and the bonding strength with friction pair of lube additive with ultra-fine serpentine powder, on the basis of TG-DSC analysis, the influence of heat treatment temperature on the crystal structure and composition of ultra-fine serpentine powder was investigated. Then, ultra-fine serpentine powders treated under various temperatures were added into lube base oil respectively to study their tribological properties. The results showed that with the increase of heating temperature, the adsorbed water, interlayer water and structural water were removed from the serpentine powder gradually. When taking off structural water under high tempera- ture, serpentine decomposed to form forsterite and silica. The tribological performance of lube base oil with serpentine powder treated at 200 ℃ was improved significantly. Compared with base oil, the fric tion factor and wear scar diameter of lube oil with 1% of serpentine powder were much lower, and it also exhibited self-repairing function.

关 键 词：超细蛇纹石粉 热处理 晶体结构 摩擦学性能 自修复 

分 类 号：TB383.3[一般工业技术—材料科学与工程] TE624.82[石油与天然气工程—油气加工工程]