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Journal of Dispersion Science and Technology Volume 35, 2014 - Issue 2
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Original Articles

pH-Responsive Aqueous Foams of Oleic Acid/Oleate Solution

Xiaobo Shu State Key Laboratory of Oil & Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan, P. R. China
,
Yingfeng Meng State Key Laboratory of Oil & Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan, P. R. China
,
Liping Wan State Key Laboratory of Oil & Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan, P. R. ChinaCorrespondence[email protected]
,
Gao Li State Key Laboratory of Oil & Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan, P. R. ChinaCorrespondence[email protected]
,
Mou Yang State Key Laboratory of Oil & Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan, P. R. China
&
Wenbo Jin State Key Laboratory of Oil & Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan, P. R. China
Pages 293-300 | Received 02 Mar 2013, Accepted 11 Mar 2013, Published online: 30 Jan 2014
 
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Abstract

Aqueous foams of oleic acid/oleate solution were found to be pH-responsive with pH changes. Detailed characterization of the aqueous foams of oleic acid/oleate solution was conducted with respect to their stability, structure, and pH response. The pH values required for foam circulation were studied through pH adjustment. The foaming and defoaming activities of oleic acid/oleate solution were explained by microscopic analysis and oil defoaming mechanisms. Because of the reversibility of oleic acid losing or receiving protons, the foaming and defoaming cycles could be readily repeated many times.

Notes

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