文献类型：期刊文献

英文题名：Viscoelastic micellar system of mixed surfactin and octadecyl trimethyl ammonium chloride

作者：Zhao, Yuqing[1];He, Jinlan[1];Xu, Wenting[1];Fang, Bo[1]

机构：[1]East China Univ Sci & Technol, Shanghai Key Lab Multiphase Mat Chem Engn, Lab Chem Engn Rheol, Shanghai 200237, Peoples R China

年份：2022

卷号：25

期号：5

起止页码：575

外文期刊名：JOURNAL OF SURFACTANTS AND DETERGENTS

收录：;EI(收录号：20221912070077);WOS:【SCI-EXPANDED(收录号:WOS:000790219800001)】；

基金：This project was granted financial support from the National Science and Technology Major Project of China (No. 2017ZX05023003-004).

语种：英文

外文关键词：cross model; OTAC; rheology; surfactin; viscoelastic micelles

摘要：Surfactin is a kind of lipopeptide biosurfactant with good performance. In order to solve the difficulty of surfactin thickening, this study investigated the new viscoelastic micellar system composed of surfactin and octadecyl trimethyl ammonium chloride (OTAC) and its rheological properties. The influences of mass ratio, pH, and temperature on the rheological properties of the system were studied. Under optimized mass ratio and pH, the maximum viscosity of surfactin/OTAC (4.5/7.5 w/w, pH = 5.34) is obtained as 13,904 mPa s. The flow curves of surfactin/OTAC micelle system can be described by Cross constitutive equation. The rheological properties of surfactin/OTAC viscoelastic micelle systems are obtained, including thixotropy, viscoelasticity, and viscosity-temperature properties. The research on the new surfactin/OTAC system expanded the viscoelastic micelle systems of microbial surfactant series, which was expected to provide the rheological basis for the research of the surfactin micellar systems and be applied to the development and production of daily chemical industry, oil recovery, and other fields.