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日用化学工业 ›› 2019, Vol. 49 ›› Issue (5): 298-303.doi: 10.3969/j.issn.1001-1803.2019.05.004

• 开发与应用 • 上一篇    下一篇

含刚性基团的Gemini表面活性剂的制备及其与SDS复配性能研究

张文哲,李盼,侯琳熙()   

  1. 福州大学 石油化工学院,福建 福州 350108
  • 收稿日期:2018-09-27 修回日期:2019-04-29 出版日期:2019-05-22 发布日期:2019-05-24
  • 通讯作者: 侯琳熙
  • 作者简介:张文哲(1993-),男,河南人,硕士,电话:17698594001,E-mail:zwz@fzu.edu.cn。
  • 基金资助:
    国家自然科学基金资助项目(0040-83416046)

Preparation of Gemini surfactants containing rigid groups and their properties after mixed with sodium dodecyl sulfate

ZHANG Wen-zhe,LI Pan,HOU Lin-xi()   

  1. School of Chemical Engineering, Fuzhou University, Fuzhou, Fujian 350108, China
  • Received:2018-09-27 Revised:2019-04-29 Online:2019-05-22 Published:2019-05-24
  • Contact: Lin-xi HOU

摘要:

以邻苯二甲酸酐、环氧氯丙烷以及N,N-二甲基十四烷基胺为原料合成了含有刚性联接基团的Gemini表面活性剂G14,通过电喷雾质谱以及核磁共振氢谱对其结构进行了表征。研究了G14和十二烷基硫酸钠(SDS)复配体系的表面活性以及应用性能。发现复配体系比单一组分拥有更低的临界胶束浓度(cmc)、更强的乳化能力以及更好的润湿性能。其中当n(G14)∶n(SDS)=1∶2时,cmc为3.19×10 -5 mol/L,γcmc为22.3 mN/m,Amin为0.57 nm 2,pc20为5.01,Гmax为2.92 μmol/m 2;在65 ℃时对柴油的清洗率能达到91.67%。

关键词: 刚性基团, Gemini表面活性剂, 复配, 表面活性, 应用性能

Abstract:

A Gemini surfactant containing the rigid linking group(G14)was synthesized from phthalic anhydride, epichlorohydrin and N,N-dimethyltetradecylamine. The structure was characterized by electrospray mass spectrometry and 1H NMR. The surface activity and application properties of the mixtures of G14 and sodium dodecyl sulfate(SDS)were studied. The mixed systems have exhibited a lower critical micelle concentration(cmc), a stronger emulsifying ability, and better wetting properties than a single component. When n(G14)∶n(SDS)=1∶2, the cmc is 3.19×10 -5 mol/L; γcmc is 22.3 mN/m; Amin is 0.57 nm 2; pc20 reaches 5.01; Гmax reaches 2.92 μmol/m 2; the cleaning rate of diesel can reach 91.67% at 65 ℃.

Key words: rigid group, Gemini surfactant, compounding, surface activity, application performance

中图分类号: 

  • TQ423.12