Rheology Behaviors of C22-Tailed Carboxylbetaine in High-Salinity Solution. Issue 4 (2nd April 2016)

• Record Type: Journal Article
• Authors: Zhang, Yongmin; Zhou, Dapeng; Ran, Haiyan; Dai, Hong; An, Pengyun; He, Shuai
• Is Part Of: Journal of dispersion science and technology. Volume 37:Issue 4(2016)
• Page Start: 496
• Page End: 503
• Publication Date: 2016-04-02
• Subjects: High salinity -- N-dimethyl carboxybetaine -- N-erucamidopropyl-N -- rheology -- thermal stability -- viscoelastic fluid -- wormlike micelles; Emulsions -- Periodicals; Suspensions (Chemistry) -- Periodicals; Emulsions; Suspensions; 541.34
• DOI: 10.1080/01932691.2015.1045601
• Languages: English
• ISSNs: 0193-2691

Abstract

Abstract : Viscoelastic wormlike micelles have attracted special interests over the past decade due to their unique rheological response. Few efforts were however devoted to the rheological properties of worms in high-salinity solution. Here, worm-containing viscoelastic fluid is designed from single N-erucamidopropyl-N, N-dimethyl carboxybetaine (EMAB), using brine water (total dissolved solids: 32, 868 mg L −1 ; [Ca 2+ ] + [Mg 2+ ]: 873 mg L −1 ) as solvent. Upon increasing concentration, EMAB brine solution shows remarkable macroscopic viscoelasticity above a low overlapping concentration (0.04 wt%) without adding special hydrotropes, implying a giant 3D network-like entanglement formation. Such a viscoelastic network aggregates exhibit thermo-induced thickening behavior in a comparable temperature range due to the hydrogen bond interaction, and excellent thermal stability. The apparent viscosity at 170 s −1 can keep above 50 mPa · s at 130°C for 2 hours. These preliminary results will give EMAB a rich prospective for use as rheological modifier, especially for using in some extremely environment such high temperature, high salinity, and high shear. GRAPHICAL ABSTRACT: