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China Surfactant Detergent & Cosmetics ›› 2020, Vol. 50 ›› Issue (12): 829-832.doi: 10.3969/j.issn.1001-1803.2020.12.003

• Development and application • Previous Articles     Next Articles

Study of the performance of sodium alkyl diphenyl ether disulfonates

CAO Sheng-ti1(),JIAO Ti-liu2,HUO Yue-qing1,LIU Xiao-chen1(),NIU Jin-ping1()   

  1. 1. China Research Institute of Daily Chemistry Co., Ltd., Taiyuan, Shanxi 030001, China
    2. Sinolight Chemicals Shaoxing Ltd., Shaoxing, Zhejiang 312369, China
  • Received:2020-02-21 Revised:2020-11-17 Online:2020-12-22 Published:2020-12-22
  • Contact: Xiao-chen LIU,Jin-ping NIU E-mail:864045517@qq.com;liuren517@163.com;njp6611@163.com

Abstract:

The acid resistance, alkali resistance, thermal stability and surface tension of sodium dioctyl diphenyl ether disulfonate (C8-DADS) and sodium monohexadecyl diphenyl ether disulfonate (C16-MADS) were studied. The solution stability and interfacial tension of the system of C8-DADS (or C16-MADS) mixed with dodecyltrimethylammonium chloride (DTAC) were investigated. The results were as follows: the H2SO4 resistance, NaOH resistance and thermal stability of C16-MADS were better than that of C8-DADS; the critical micelle concentration (cmc) of C16-MADS was lower than that of C8-DADS, and the surface tension at cmc of C8-DADS was lower than that of C16-MADS; the solution stability of C16-MADS/DTAC was higher than that of C8-DADS/DTAC; the interfacial tension of the system with m(C8-DADS):m(DTAC) of 8:2 was very low and could reach the order of 10-3mN/m.

Key words: sulfonate, acid resistance, alkali resistance, thermal stability, surface tension, interfacial tension

CLC Number: 

  • TQ423