复配表面活性剂溶液粘度性质的研究

在３０３．２±０．１Ｋ。测定十二烷基硫酸钠（以下简称ＳＤＳ）和十二烷基苯磺酸钠（以下简称ＳＤＢＳ）混合溶液对水的相对粘度以及无机盐Ｎａ２ＳＯ４对其粘度的影响。结果显示：混合液的粘度与单组分溶液的粘度之间不是简单的加和，这暗示复配溶液可能形成混合胶团。当用无机盐增粘时，溶液粘度显著增加，但其粘度增加有一定的限度，这些现象用表面活性剂分子结构的差别对所形成的胶团结构的影响，盐离子与表面活性剂胶团间的相互作用以及溶（活）度积效应来解释。

A study on the viscosity behavior of mixed surfactant solutions

Experiments have been conducted at 303. 2± 0. 1K to study the viscosity be- havior of two mixed surfactant solutions , namely , sodium dodecyl sulphate (hereinafter called SDS fot short ) and acid-sodium salt (hereinafter called SDBS for short) . as well as studying the tackifying effect of such inorganic salts as sodi- um suplhate upon their viscocity , It is found that the viscosity of the two mixed solu- tions is not the simple sdditivity of the respective viscosities of each one of their compo- nents , which suggests that mixed micelles may have formed in the mixed solutions. It is also found that the inorganic tackifier used has obivous tackifying effect , but not with- out limits. All this can be interpreted as the effect of the differences of the surfactants in molecular structure upon the micellar structures thus formed , as the interplay between the salt ions and the surfactant micelles , and as the existence of a limit to the solubility product effect .