摘要
本文使用控制应力流变仪对季铵盐表面活性剂中的十六烷基三甲基溴化铵（CTAB）和少量水杨酸钠（NaSal）形成的凝胶体系的流变特性进行了研究。研究表明，该体系属于非牛顿流体，具有剪切稀释特性。流变方程符合幂律模型，其中流动指数n均小于1。在高温段（340．15～370．15K），2％CTAB和0．8％NaSal凝胶体系的温度依赖性符合Arrhenius方程，其中活化能Ea为50．40kJ／mol。在外加KCl后，凝胶体系表现出聚电解质溶液黏性行为。
The flow properties of the gel system, which is made from the aqueous solution of hexadecyl trimethyl ammonium bromide （CTAB） and sodium salicylate （NaSaI） , is studied by means of the controlled stress rheometer. The results show that such gel system exhibits markedly shear-thinning feature, and belongs to the non-Newtonian fluid. Its theology equation can be represented satisfactorily by the power law mode, and the flow behavior index （n） is less than 1.00. At the range of high temperature, namely from 340. 15 K to 370. 15 K, the temperature-dependence of the gel system of CTAB （2%） and NaSaI （0.8%） can be described by Arrhenius equation. The activation energy is determined to be 50.40 kJ/mol. With the adding of KCl, the viscosity behavior of polyselectrolyte solution is observed in this gel system.
出处
《矿冶》
CAS
2010年第2期51-54,共4页
Mining And Metallurgy
