脂肪酸对微乳化切削液防锈性能影响的研究  

Study on the Effects of Fatty Acids on the Rust-inhibiting Properties of Microemulsion Cutting Fluid

作　　者：李广宇[1] 孟瑶[1] 马先贵[2] 

机构地区：[1]沈阳理工大学环境与化学工程学院,辽宁沈阳110168 [2]东北大学,辽宁沈阳110004

出　　处：《润滑与密封》2008年第10期45-48,共4页Lubrication Engineering

基　　金：辽宁省教育厅基金资助项目(2006B085)

摘　　要：采用铁屑滤纸试验法(IP287)评定月桂酸、癸二酸、双十一酸(DC11)和有机三元聚羧酸(L190)4种脂肪酸型缓蚀剂在微乳化切削液中的防锈性能,并通过扫描电子显微镜(SEM)和能量色散谱(EDS)观察金属表面形态及元素分布。结果发现,脂肪酸型缓蚀剂的防锈性能与其含量、烃基的碳原子数目、羧基数目和pH值密切相关。脂肪酸型缓蚀剂的含量增大、烃基的碳原子数目增多、羧基数目增加和pH值升高,均会提高微乳化切削液的防锈性能。The rust-inhibiting properties of four kinds of fatty acid inhibitors in the microemulsion cutting fluid, such as dodecanoie acid, decanedioic acid, 11 double-acid （DC11） and organic ternary polycarboxylate （L190） were assessed with iron chip/filter paper method （IP287）. The metal surface morphology and distribution of elements were observed by Scanning Electron Microscope （SEM） and the Energy Dispersive Spectrometer （EDS）. The rust-inhibiting properties of fatty acids have closely relations to the concentration of fatty acid inhibitors, the length of alkyl-chain, the number of carboxyl group and the pH value. When increasing the concentration of fatty acid inhibitors, the length of alkyl-chain, the number of carboxyl group or the pH value, the rust-proofing performance of the microemulsion cutting fluid can be improved.

关 键 词：脂肪酸 微乳化液 防锈 缓蚀剂 

分 类 号：TG501.5[金属学及工艺—金属切削加工及机床]