文献类型：期刊文献

中文题名：pH响应黏弹性油酰胺丙基二甲胺/邻苯二甲酸氢钾胶束体系流变性研究

英文题名：Rheological properties of pH-responsive viscoelastic micellar system of oleylamidopropyl dimethyl amine/potassium hydrogen phthalate

作者：崔秀[1];方波[1];许海涛[1]

机构：[1]华东理工大学化工学院流变学研究室,上海200237

年份：2020

卷号：50

期号：7

起止页码：433

中文期刊名：日用化学工业

外文期刊名：China Surfactant Detergent & Cosmetics

收录：CSTPCD;;北大核心:【北大核心2017】；CSCD:【CSCD_E2019_2020】；

基金：国家科技重大专项课题(2017ZX05023003)。

语种：中文

中文关键词：油酰胺丙基二甲胺;邻苯二甲酸氢钾;pH响应型胶束体系;流变学性质

外文关键词：oleylamidopropyl dimethyl amine;potassium hydrogen phthalate;pH-responsive micellar system;rheological property

摘要：通过考察油酰胺丙基二甲胺(PKO-O)/邻苯二甲酸氢钾(PHP)黏弹性胶束体系的稳态剪切黏度、流动曲线、剪切触变性、黏弹性、热触变性等流变学性质,研究了该胶束体系的pH响应性。结果表明,200 s^-1下,pH=7.47时胶束体系稳态剪切黏度较大,为122.3 mPa·s;在pH=7.61,7.47,6.403个状态间,稳态剪切黏度可循环切换多次,表明该胶束体系具有良好的pH响应性;PKO-O/PHP胶束体系为剪切变稀的正触变性流体,其流动曲线可用Cross本构方程进行表征;该体系是典型的黏弹、热触变性流体,pH=7.47时体系具有较大的复模量和显著的热触变性。
The pH responsiveness of the viscoelastic micellar system of oleylamidopropyl dimethyl amine(PKO-O)/potassium hydrogen phthalate(PHP)was studied by investigating the rheological properties such as steady-state shear viscosity,flow curve,shear thixotropy,viscoelasticity and thermal thixotropy of the fluid.The steady-state shear viscosity of the micellar system(pH=7.47)was high,which was 122.3 mPa·s at 200 s^-1.And the steady-state shear viscosity could be switched cyclically between the status at pH 7.61,7.47 and 6.40,indicating that this micellar system had good pH responsiveness.In addition,the PKO-O/PHP micellar system was shear-thinning and positive thixotropic fluid.The flow curve could be characterized by the Cross constitutive equation.The micellar system(pH=7.47)was a typical viscoelastic fluid with high complex modulus and significant thermal thixotropy.