Issue 17, 2015
From the journal:

RSC Advances

Synergistic mechanism between laurel alkanolamide and hydrophobically associating polyacrylamide in solutions with high salinity†

Quanhua Deng,a   Haiping Li,b   Xulong Cao,c   Yong Yang,c   Xinwang Songc  and  Ying Li*a  

* Corresponding authors

a Key Laboratory for Colloid and Interface Chemistry of Education Ministry, Shandong University, Jinan 250100, P.R. China
E-mail: yingli@sdu.edu.cn
Fax: +86-531-88362078
Tel: +86-531-88362078

b National Engineering Technology Research Center for Colloidal Materials, Shandong University, Jinan 250100, P.R. China

c Geological Scientific Research Institute, Shengli Oilfield, Dongying 257015, P.R. China

Abstract

Synergism of water-soluble hydrophobically associating polyacrylamide (HA-PAM) with nonionic surfactant laurel alkanolamide (LAA) was investigated via the rheology, fluorescence spectroscopy and dissipative particle dynamics (DPD) simulation methods. The viscosity and elasticity of HA-PAM solutions increased in a large LAA concentration range, which was principally ascribed to the crosslinking effect of LAA by aggregating to the hydrophobic chains of HA-PAM molecules as confirmed by the DPD simulation and experimental results. The crosslinking effect was enhanced in the presence of an appropriate amount of electrolyte or with increasing temperature in the studied temperature range of 20–70 °C. Thus, the LAA not only significantly enhanced the salt resistance of HA-PAM but also retarded the decrease of the viscosity and elasticity of the HA-PAM solutions at high temperature. The HA-PAM/LAA binary systems exhibit great potential for application in tertiary oil recovery of oil fields with high salinity.

Graphical abstract: Synergistic mechanism between laurel alkanolamide and hydrophobically associating polyacrylamide in solutions with high salinity

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Article information

DOI
https://doi.org/10.1039/C4RA14884C
Article type
Paper
Submitted
19 Nov 2014
Accepted
19 Jan 2015
First published
19 Jan 2015

RSC Adv., 2015,5, 13078-13086

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Synergistic mechanism between laurel alkanolamide and hydrophobically associating polyacrylamide in solutions with high salinity

Q. Deng, H. Li, X. Cao, Y. Yang, X. Song and Y. Li, RSC Adv., 2015, 5, 13078 DOI: 10.1039/C4RA14884C

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