磺酸盐型Gemini表面活性剂复配体系的黏度性质研究

doi:10.13218/j.cnki.csdc.2016.09.003

摘要/Abstract

摘要： 对以溴代十四烷、乙二胺和1,3-丙磺内酯为原料合成的磺酸盐型Gemini表面活性剂的表面活性进行了评价。主要研究了不同碳链长度的季铵盐、无机盐和有机盐的加入,剪切时间以及温度对上述表面活性剂体系黏度性质的影响。结果表明,磺酸盐型Gemini表面活性剂的临界胶束浓度比相应的单链表面活性剂低1~2个数量级;当向质量分数为1%的磺酸盐型Gemini表面活性剂中加入季铵盐时,复配体系的黏度先增加后减少,且季铵盐的碳链越长,增黏效果越明显,复配体系的黏度最大可达245.5 mPa·s,碳链的增长有助于蠕虫状胶束的形成;在磺酸盐型Gemini表面活性剂和十六烷基三甲基溴化铵(CTAB)的复配体系中,随着KCl,NaCl以及水杨酸钠质量分数的增加,复配体系的黏度先增加后减少,其中KCl的增黏效果最为显著,当KCl的质量分数为0.12%,复配体系的黏度达到最大,为430.2 mPa·s;在磺酸盐型Gemini表面活性剂/CTAB/KCl的复配体系中,随着剪切时间和温度的增加复配体系的黏度逐渐降低。

关键词: 磺酸盐型Gemini表面活性剂, 表面活性, 黏度性质

Abstract: Evaluation of surface activity of a sulfonate type Gemini surfactant made of 1-bromotetradecane,ethylenediamine and 1,3-propane sultone was conducted.Effects of separate addition of quaternary ammonium salts (QASs) with different carbon chain length,inorganic salts,and organic salt,as well as shearing time period and temperature on the viscosity characteristics of the blend surfactant system containing the abovesaid sulfonate type Gemini surfactant were emphatically investigated.The results showed that the critical micelle concentration of above-mentioned surfactant is lower 1~2 order of magnitude than that of the corresponding single chain surfactant.When QASs is added into the sulfonate type Gemini surfactant aqueous solution of mass fraction of 1%,the viscosity of the blend surfactant system increases firstly;and the longer the carbon chain length of the QASs,the more obvious the viscosity increase effect;while up to a maximum value of 245.5 mPa·s,then it declines.Increase of the length of carbon chain helps the formation of wormlike micelles.The separate addition of KCl,NaCl and sodium salicylate all can increase the viscosity of the blend system composed of the sulfonate type Gemini surfactant and cetyltrimethylammonium bromide (CTAB) firstly and then decline.Among them,the most obvious one is KCl.When its mass fraction achieves 0.12%,the viscosity increases to a maximum value of 430.2 mPa·s.Following the increase of shearing time period and temperature,the viscosity of the blend system declines.

Key words: sulfonate type Gemini surfactant, surface activity, viscosity characteristics

中图分类号:

TQ423.11

邹华,刘华荣,梅平. 磺酸盐型Gemini表面活性剂复配体系的黏度性质研究[J]. 日用化学工业, 2016, 46(9): 502-506.

ZOU Hua,LIU Hua-rong,MEI Ping. Study on the viscosity characteristics of blend surfactant system containing sulfonate type Gemini surfactant[J]. China Surfactant Detergent & Cosmetics, 2016, 46(9): 502-506.

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