阴离子聚丙烯酰胺/三乙醇胺超分子体系的表征及性能

doi:10.7503/cjcu20160274

高等学校化学学报 ›› 2016, Vol. 37 ›› Issue (9): 1728.doi: 10.7503/cjcu20160274

阴离子聚丙烯酰胺/三乙醇胺超分子体系的表征及性能

祝仰文¹, 刘歌², 曹绪龙¹(), 宋新旺¹, 陈湧², 刘育²()

1. 胜利油田分公司勘探开发研究院, 东营 257015
2. 南开大学化学系, 元素有机化学国家重点实验室, 天津化学化工协同创新中心, 天津 300071

收稿日期:2016-04-25 出版日期:2016-09-10 发布日期:2016-08-15
作者简介:联系人简介: 曹绪龙, 男, 博士, 教授级高工, 主要从事油田提高采收率技术研究. E-mail:caoxulong.slyt@sinopec.com; 刘育, 男, 博士, 教授, 博士生导师, 主要从事主-客体化学和超分子化学研究. E-mail:yuliu@nankai.edu.cn
基金资助:
国家自然科学基金(批准号: 21432004)和国家科技重大专项(批准号: 2016ZX05011-003)资助

Characterization and Property of Sulfonated Polyacrylamide/triethanolamine Supramolecular System^†

ZHU Yangwen¹, LIU Ge², CAO Xulong^1,^*(), SONG Xinwang¹, CHEN Yong², LIU Yu^2,^*()

1. Research Institute of Exploration and Development, ShengLi Oilfied Company,China Petro-Chemical Corporation, Dongying 257015, China
2. Department of Chemistry, State Key Laboratory of Elemento-Organic Chemistry,Collaborative Innovation Center of Chemical Science and Engineering(Tianjin), Nankai University, Tianjin 300071, China

Received:2016-04-25 Online:2016-09-10 Published:2016-08-15
Contact: CAO Xulong,LIU Yu E-mail:caoxulong.slyt@sinopec.com;yuliu@nankai.edu.cn
Supported by:
† Supported by the National Natural Science Foundation of China(No.21432004) and the National Major Project of China(No.2016ZX05011-003)

摘要/Abstract

摘要：

研究了水溶液和模拟矿化水溶液中带有负电荷的磺化聚丙烯酰胺(SPAM)与三乙醇胺(TEA)之间的相互作用及形成的超分子体系的结构特征, 考察了超分子体系的形成对SPAM形貌、流体力学直径、 zeta电位、黏度及流变学性质的影响. 研究结果表明, 超分子体系的形成有利于提高磺化聚丙烯酰胺的黏度、抗剪切性、剪切回复性及抗温耐盐性.

关键词: 磺化聚丙烯酰胺, 三乙醇胺, 超分子体系

Abstract:

Polymer flooding technology is one of the preferred “enhanced oil recovery”(EOR) technologies used for improving oil recovery. Among the various chemical reagents for polymer flooding technology, polyacrylamide has attracted more and more attention. To explore the improving effect of triethanolamine(TEA) on sulfonated polyacrylamide(SPAM), the interaction of negatively charged sulfonated polyacrylamide with triethanolamine and the structure of SPAM/TEA supramolecular system were investigated in aqueous solution and mineralized water by means of transmission electron microscopy(TEM), viscosity, dynamic light scattering(DLS), zeta potential and rheological experiments. The results indicate that, through the cooperative contribution of electrostatic and hydrogen bond interactions, SPAM and TEA can form a large supramolecular assembly with an average diameter of 780 nm measured by DLS. Significantly, the formation of SPAM/TEA supramolecular system can efficiently improve the viscosity and rheological properties of sulfonated polyacrylamide. In addition, the nearly neutral zeta potential of SPAM/TEA supramolecular system can decrease the affect of Ca²⁺ and Mg²⁺ cations in the mineralized water.

Key words: Sulfonated polyacrylamide, Triethanolamine, Supramolecular system

中图分类号:

O632.63

TrendMD:

祝仰文, 刘歌, 曹绪龙, 宋新旺, 陈湧, 刘育. 阴离子聚丙烯酰胺/三乙醇胺超分子体系的表征及性能. 高等学校化学学报, 2016, 37(9): 1728.

ZHU Yangwen, LIU Ge, CAO Xulong, SONG Xinwang, CHEN Yong, LIU Yu. Characterization and Property of Sulfonated Polyacrylamide/triethanolamine Supramolecular System^†. Chem. J. Chinese Universities, 2016, 37(9): 1728.

图/表 8

Fig.1 Structure of SPAM

Fig.2 Effect of TEA concentration on viscosity of SPAM

Fig.3 TEM image of SPAM/TEA supramolecular system

Fig.4 Hydrodynamic radius distribution of SPAM and SPAM/TEA in aqueous solution

Fig.5 Zeta potentials of SPAM(a) and SPAM/TEA(b) in aqueous solution

Fig.6 Effects of TEA concentration on G'(a, c, e, g) and G″(b, d, f, h) of SPAM in aqueous solution at 25 ℃ Concentration of SPAM/(mg·mL-1): a, b. 0.2; c, d. 0.4; e, f. 0.6; g, h. 0.8.

Fig.7 Effects of shear rate on the sheer viscosity of SPAM(a,b) and SPAM/TEA(c,d) in aqueous solution at 25 ℃ a, c. Without a pre-shearing; b, d. after a pre-shea-ring at 200 s-1 for 5 min.

Fig.8 Effects of shear rate on the apparent viscosity of SPAM(a, b) and SPAM/TEA(c, d) in mineralized water solution at 85 ℃ a, c. Without a pre-shearing; b, d. after a pre-shea-ring at 200 s-1 for 5 min.

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阴离子聚丙烯酰胺/三乙醇胺超分子体系的表征及性能

Characterization and Property of Sulfonated Polyacrylamide/triethanolamine Supramolecular System^†

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阴离子聚丙烯酰胺/三乙醇胺超分子体系的表征及性能

Characterization and Property of Sulfonated Polyacrylamide/triethanolamine Supramolecular System†

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Characterization and Property of Sulfonated Polyacrylamide/triethanolamine Supramolecular System^†