天津工业大学学报2026，Vol.45Issue(4)：26-32,7.DOI:10.3969/j.issn.1671-024x.2026.04.004
内烯烃磺酸盐和甜菜碱降低界面张力的协同效应
Synergistic effect of internal olefin sulfonates and betaines on reducing interfacial tension
摘要
Abstract
To clarify the effect of hydrophobic chain length on the interfacial activity of internal olefin sulfonates(IOS)and their synergistic mechanism with betaine,the interfacial tension(IFT)between IOS solution with different hy-drophobic chain lengths and n-alkanes was tested by a rotating drop interfacial tensiometer.The synergistic per-formance of IOS surfactants with different hydrophobic chain lengths and betaine SB22 for reducing oil-water IFT was investigated.The results show that IOS22 with a long hydrophobic chain can achieve hydrophilic-lipophilic balance(HLB)with decane,and has higher interfacial activity,which will reduce the decane-water IFT to 0.074 mN/m.IOS with different hydrophobic chain lengths can produce synergistic effect with SB22 due to electrostatic attraction,and the strength of synergistic effect is affected by"chain length matching".However,AOS18 with a single hydrophobic chain cannot produce obvious synergistic effect due to its poor vacancy match-ing with SB22.Under the optimal mass mixing ratio of 4∶6 with dodecane as the oil phase,the binary system of IOS22 and SB22 can reduce the oil-water IFT to 0.005 3 mN/m.关键词
内烯烃磺酸盐/甜菜碱/界面张力(IFT)/混合吸附/链长匹配Key words
internal olefin sulfonate/betaine/interfacial tension(IFT)/mixed adsorption/chain length matching分类
化学化工引用本文复制引用
严峰,岳如山,楚艳苹,徐清华,张磊,张路..内烯烃磺酸盐和甜菜碱降低界面张力的协同效应[J].天津工业大学学报,2026,45(4):26-32,7.基金项目
国家重点研发计划项目(2019YFA0708700) （2019YFA0708700）
