聚α-烯烃润滑基础油高温氧化条件下的抗泡性能研究  

Study on Antifoaming Properties of Poly Alpha-olefin Lubricating Base Oil Under High Temperature Oxidation Condition

作　　者：吴坤 姜旭峰[1] 费逸伟[1] WU Kun;JIANG Xu-feng;FEI Yi-wei(Department of Aviation Oil and Military supplies,Air Force Logistics College,Jiangsu Xuzhou 221000,China)

机构地区：[1]空军勤务学院航空军需与燃料系,江苏徐州221000

出　　处：《当代化工》2019年第11期2544-2547,共4页Contemporary Chemical Industry

摘　　要：选择矿物类润滑油聚α-烯烃(PAO4)为研究对象,采用高温模拟氧化装置制备氧化油样,依次测定油样100℃运动黏度,并对试验油样的泡沫特性和空气释放值进行了测定。试验结果表明:PAO的黏度会随着氧化温度的逐渐升高出现先增大后减小的趋势,在240℃达到黏度的最大值;PAO的起泡倾向随着氧化温度的升高逐渐增大,且在一定范围纳内,与黏度值成正比,进而导致了抗泡性能变差;由于氧化生成较高表面活性的醇、酮类化合物以及不溶杂环化合物,形成了可溶及不溶的表面活性吸附层,导致了空气释放时间的增加,但空气释放性能整体较好。Taking mineral lubricating oil of alpha olefin(PAO4) as a research object, oxidized oil sample was prepared by high temperature simulation device, the viscosity of sample at 100 ℃ was determined, and the antifoam properties and air release value of the test sample were also determined. The test results showed that the viscosity of PAO first increased and then decreased with the gradual rise of the oxidation temperature, reached the maximum viscosity at 240 ℃;PAO foaming tend gradually increased with the increase of oxidation temperature,and was proportional to the viscosity value within a certain range,resulting in poor anti-foaming performance. Because alcohols, ketones and insoluble heterocyclic compounds with high surface activity were produced in the oxidation, soluble and insoluble surface activity adsorption layer was formed, causing the increase of air release time, but the overall air release performance was good.

关 键 词：聚Α-烯烃 高温模拟氧化 泡沫特性 空气释放值 

分 类 号：TE626.34[石油与天然气工程—油气加工工程]