Effects of the chemical structure of surfactants on the stability of naphthenic oil-based metalworking fluids

查看全文 作　　者：Yuan [1]Xue;Jinbao [2]Liu;Maiying [1]Xie;Fengfei [1]Chen;Mingan [1]Zhou;Hualin [1]Lin;Fan [1]Zhang;Shizhou [3]Liu;Zhiqiao [1]Wu;Sheng [1]Han

机构地区：[1]School of Chemical and Environmental Engineering,Shanghai Institute of Technology,Shanghai 201418,China;[2]Department of Science and Technology,Shanghai Urban Construction Vocational College,Shanghai 201415,China;[3]College of Chemistry and Chemical Engineering,Shanxi Datong University,Datong 037009,China

出　　处：《Chinese Chemical Letters》索引2020年第31卷第2期,共4页

基　　金：supported from the Shanghai Association for Science and Technology Achievements Transformation Alliance Program(No.LM201851);the National Natural Science Foundation of China(Nos.21878188,21606151 and 21707092);Shanghai Excellent Technology Leaders Program(No.17XD1424900);'Chenguang Program'from Shanghai Education Development Foundation;Shanghai Municipal Education Commission(No.18CGB12)。 摘　　要：In this study,various nonionic surfactants(NS) with different ethylene oxide(EO) numbers and tail lengths and its binary blends with anionic surfactants(AS) were used as emulsifiers for naphthenic oil to form the microemulsion metalworking fluids(MWFs),and the effects of them on the stability of the emulsion system were investigated by formulation triangle method.The results indicated that binary complex surfactants of NS and AS as emulsifiers exhibited better emulsifying effect than that of single NS.NS with different EO numbers and tail lengths presented various emulsifying effects.NS(EO=10)exhibited the greatest number of stable formulations,especially the TX-10,but no linear relationship existed between the number of stable formulations and the tail length of NS.In addition,aromatic primary alcohol ethoxy late(APAE) series surfactants containing benzene groups similar to the cycloalkanes in the naphthenic oil so that presented the best emulsifying affect and the greatest number of stable formulations.The co-surfactant of sodium dodecyl benzene sulfonate(SDBS) binary blends with NS exerted the best synergistic effect,and the stable formulations numbers were ranged from 5 to 7,next sodium stearate(SS) comes last followed by sodium dodecyl sulfate(SDS-1) and sodium dodecyl sulfonate(SDS-2). 关键词：Metal working fluid EMULSION stability EMULSIFYING EFFECTS STABLE formulations Naphthenic oil

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Effects of the chemical structure of surfactants on the stability of naphthenic oil-based metalworking fluids

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