CAJ | 학술논문

研究了在不加助表面活性剂的情况下,双尾表面活性剂盐水溶液和正辛烷组成的三元体系中能否形成中相微乳液及其相关的相态特性.结果表明,在不加助表面活性剂的情况下,双尾表面活性剂C_mGA(EO)_nS(m＝12,14,16;n＝0,1,3,4,8)中,只有C_(14)GA(EO)_nS(n＝1,3,4)可与盐水及正辛烷形成中相微乳液;以适宜的增溶参数、低界面张力值以及相体积图为基础所确定的形成中相微乳液的最佳含盐量三者一致性较好;随着C_(14)GA(EO)_nS(n＝1,3,4)中EO基团数增加,形成中相微乳液的最佳盐度和增溶参数皆随之增加,而最佳界面张力值则降低.
연구료재불가조표면활성제적정황하,쌍미표면활성제염수용액화정신완조성적삼원체계중능부형성중상미유액급기상관적상태특성.결과표명,재불가조표면활성제적정황하,쌍미표면활성제C_mGA(EO)_nS(m＝12,14,16;n＝0,1,3,4,8)중,지유C_(14)GA(EO)_nS(n＝1,3,4)가여염수급정신완형성중상미유액;이괄의적증용삼수、저계면장력치이급상체적도위기출소학정적형성중상미유액적최가함염량삼자일치성교호;수착C_(14)GA(EO)_nS(n＝1,3,4)중EO기단수증가,형성중상미유액적최가염도화증용삼수개수지증가,이최가계면장력치칙강저.
In a ternary system consisting of double tail surfactant/brine/octane and without the addition of co-surfactant,whether middle phase microemulsion would be formed and the relevant phase behaviors of the ternary system were investigated.Results showed that among the double tail surfactants C_mGA(EO)_nS (m＝12,14,16;n＝0,1,3,4,8),only C_(14)GA(EO)_nS (n＝1,3,4) can form middle phase microemulsion together with brine and octane.There is quite good consistency among the suitable solubilization parameter,the lowered interfacial tension and the optimal salinity for forming the middle phase microemulsion that determined by using volumetric phase diagram as the basis.With the increasing of EO group in the surfactants C_(14)GA(EO)_nS (n＝1,3,4),both the optimal salinity and optimal solubilization parameter will increase,but the optimal interfacial tension will decrease.