Rheological Properties of Viscoelastic Solutions in a Cationic Surfactant-Organic Salts-Water System

被引：14

作者：

Wei, Xilian ^{[1
]}

Geng, Peipei ^{[1
]}

Han, Chuanhong ^{[1
]}

Guo, Yan ^{[1
]}

Chen, Xiaoxiao ^{[1
]}

Zhang, Junhong ^{[1
]}

Zhang, Yingtian ^{[1
]}

Sun, Dezhi ^{[1
]}

Zhou, Shiyan ^{[1
]}

机构：

[1] Liaocheng Univ, Coll Chem & Chem Engn, Shandong Prov Key Lab Chem Energy Storage & Novel, Liaocheng 252059, Shandong, Peoples R China

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2016年 / 55卷 / 19期

基金：

中国国家自然科学基金;

关键词：

WORMLIKE MICELLAR-SOLUTIONS; ANGLE NEUTRON-SCATTERING; THREAD-LIKE MICELLES; AQUEOUS-SOLUTIONS; NONLINEAR RHEOLOGY; MIXTURES; BEHAVIOR; CHLORIDE; MICROSTRUCTURE; INTERFACE;

D O I：

10.1021/acs.iecr.6b00238

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Viscoelastic solutions formed in the mixed aqueous solutions of 3-tetradecyloxy-2-hydroxypropyltrimethylammonium bromide (R(14)HTAB) and aromatic salts such as sodium salicylate (NaSal), sodium 1-hydroxynaphthalene-2-carboxylate (1SHNC), and sodium 2-hydroxynaphthalene-3-carboxylate (2SHNC) were systematically studied by steady and dynamic shear rheology in terms of concentration and temperature. In the absence of a salt, R(14)HTAB only produced spherical or short cylindrical micelles within a range of concentrations of 100-400 mmol kg(-1). The addition of aromatic salts induced one-dimensional growth of micelles generating wormlike micelles. Zero-shear viscosity of the solutions shows viscosity maxima behavior in the examined range of salt concentration, where the strongest and the most stable network structures were formed. The changes in the viscoelastic behavior are a result of variation of the structural relaxation time, indicating that the flow behavior is primarily controlled by micellar kinetics. The microstructure of wormlike micelles and the reason for the variation in the microstructure with an increase in the additive concentration has been analyzed by infrared and H-1 NMR spectra measurements. The zero-shear viscosity reduces exponentially with increasing temperature.

引用

页码：5556 / 5564

页数：9

共 56 条

[1] Phase and rheological behavior of salt-free alkyltrimethylammonium bromide/alkanoyl-N- methylethanolamide/water systems [J].