三硅氧烷离子液体水溶液的动态表面张力研究

doi:10.13218/j.cnki.csdc.2014.08.094

Abstract

Abstract: Dynamic surface tension (DST) of trisiloxanepyridinium ionic liquid and trisiloxaneimidazolium ionic liquid aqueous solution were measured with bubble pressure tensiometer.Effects of concentration and temperature on DST were investigated in detail.Data obtained were analyzed in accordance with Word-Tordai equation,and the diffusion coefficients for ionic liquid molecular adsorption in initial time stage and long time stage under different conditions were figured out respectively.The results indicated that the adsorption mechanism of both above said two kinds of ionic liquid belongs to mixed diffusion-kinetic controlled adsorption.

Key words: ionic liquid, dynamic surface tension, diffusion coefficient, adsorption mechanism

CLC Number:

TQ423.4

LI En-ze, DU Zhi-ping, LI Ping, WANG Guo-yong. Dynamic surface tension of trisiloxane ionic liquid aqueous solution[J].China Surfactant Detergent & Cosmetics, 2014, 44(8): 421-425.

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Dynamic surface tension of trisiloxane ionic liquid aqueous solution

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