文献类型：期刊文献

英文题名：Rheological properties of hexadecyl dimethyl amine modified carboxymethyl hydroxyethyl cellulose solutions and its gelling process

作者：Sun, Rui[1];Fang, Bo[1];Lu, Yongjun[2];Qiu, Xiaohui[2];Du, Wei[1];Han, Xiaofei[1];Zhou, Qinggang[1];Qiu, Yufeng[1]

机构：[1]East China Univ Sci & Technol, Shanghai Key Lab Multiphase Mat Chem Engn, Lab Chem Engn Rheol, Res Ctr Chem Engn, Shanghai 200237, Peoples R China;[2]Petro China, Langfang Filial Res Inst Petr Explorat & Dev, Langfang 065007, Peoples R China

年份：2018

卷号：39

期号：1

起止页码：138

外文期刊名：JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY

收录：;EI(收录号：20171603573966);WOS:【SCI-EXPANDED(收录号:WOS:000426925400018)】；

基金：This project was granted financial support from the National High Technology Research and Development Program "863" Project of China (2013AA064801).

语种：英文

外文关键词：Cellulose; gelling process; modification; rheological properties

摘要：To obtain a new fracturing fluid viscosifier, hexadecyl dimethyl amine was used to modify carboxymethyl hydroxyethyl cellulose (CMHEC) to obtain a product called HD-CMHEC with high viscosity. The rheological properties of HD-CMHEC solutions and CMHEC solutions were studied. For the concentration of 0.3%, the viscosity of CMHEC and HD-CMHEC solutions is, respectively, 19.0 mPa.s and 73.6 mPa.s, respectively. The viscosity of HD-CMHEC solution increases 2.8 times than before. The thixotropy and viscoelasticity of HD-CMHEC solutions become stronger. As a typical viscoelastic fluid, HD-CMHEC solutions show better rheological performance than that of CMHEC solutions. The gelling process of HD-CMHEC solutions under steady shear was studied in detail. The concentrations of HD-CMHEC solutions, shear rates, and crosslinking agent were investigated. Viscosity versus time curves during the crosslinking process were obtained. The four-parameter crosslinking rheokinetics equation can describe the gelling process of HD-CMHEC solutions under different conditions well. Study on the gelling process of HD-CMHEC solutions under steady shear contributes to the understanding of gel formation, and provides theoretical guidance for exploration and exploitation of the system.