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日用化学工业 ›› 2016, Vol. 46 ›› Issue (7): 392-396.doi: 10.13218/j.cnki.csdc.2016.07.006

• 开发与应用 • 上一篇    下一篇

N,N'-对苯二亚甲基-双(十二烷基二甲基氯化铵)/AEO9复配体系表面活性研究

李刚森1,赵林秀2,王培义1,苏豪1,翟家彬2,江东方1   

  1. 1.郑州轻工业学院 材料与化学工程学院,河南 郑州 450001;
    2.中北大学 化工与环境学院,山西 太原 030051
  • 出版日期:2016-07-22 发布日期:2019-04-18
  • 作者简介:李刚森(1980-),男,河南开封人,讲师,硕士,E-mail:lgs_chem@163.com。

Study on surface activity of N,N'-p-xylylene-bis- (dodecyldimethylammonium chloride)/AEO9 blend systems

LI Gang-sen1,ZHAO Lin-xiu2,WANG Pei-yi1,SU Hao1,ZHAI Jia-bin2,JIANG Dong-fang1   

  1. 1.College of Material and Chemical Engineering,Zhengzhou University of Light Industry,Zhengzhou,Henan 450001,China;
    2.School of Chemical and Environment Engineering,North University of China,Taiyuan,Shanxi 030051,China
  • Online:2016-07-22 Published:2019-04-18

摘要: 以对二氯苄(XDC)和十二烷基二甲基叔胺为原料,合成了阳离子双子表面活性剂N,N'-对苯二亚甲基-双(十二烷基二甲基氯化铵)(XBDDMA)。产物结构经红外光谱(FT-IR)、核磁共振氢谱(1H NMR)和碳谱(13C NMR)进行了确认。研究了XBDDMA与脂肪醇聚氧乙烯(9)醚(AEO9)按不同摩尔比复配所得体系的临界胶束浓度(cmc)、平衡表面张力(γcmc)及动态表面张力。结果表明,当n(XBDDMA)∶n(AEO9)=1∶9~9∶1时,随XBDDMA含量增加,复配体系的cmc先降低后升高,表面活性剂分子在表面上的极限占有面积(Amin)持续降低,当n(XBDDMA)∶n(AEO9)=1∶1时复配体系的cmc最小,为2.27×10-6 mol/L,γcmc也最小,为33.06 mN/m;XBDDMA的添加降低了吸附初期的扩散能,从而降低了AEO9的动态表面活性,二者复配不具有动态表面活性的协同增效作用。

关键词: 季铵盐, 双子表面活性剂, 复配体系, 协同效应, 动态表面张力

Abstract: Cationic Gemini surfactants N,N'-p-xylylene-bis-(dodecyldimethylammonium chloride) (XBDDMA) were synthesized by 1,4-bis-(chloromethyl)-benzene (XDC) and dimethyldodecylamine.The chemical structure of the purified product was confirmed by FT-IR,1H NMR and 13C NMR.The XBDDMA and AEO9 were blended with different molar ratio,as well as the critical micellar concentration (cmc),equilibrium surface tension (γcmc) and dynamic surface tension of the blend system were studied.The results showed that as n(XBDDMA)∶n(AEO9) is at the range of 1∶9 - 9∶1,following the increase of content of XBDDMA,the cmc of the blend system decreases firstly and then increases,while the area occupied by the surfactant (Amin ) decreases continuously.When n(XBDDMA)∶n(AEO9)=1∶1,the cmc of the blend system is the smallest,which is 2.27×10-6 mol/L,and the γcmc is 33.06 mN/m,which is also the smallest.The addition of XBDDMA reduces the initial diffusion energy,which reduces the dynamic surface activity of AEO9,and there is no synergism effect on the dynamic surface activity between XBDDMA and AEO9.

Key words: quaternary ammonium salt, Gemini surfactant, blend system, synergistic effect, dynamic surface tension

中图分类号: 

  • TQ423