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Abstract
The properties of foams are often affected by environmental variables such as salt contamination. The objective of this study is to investigate the impact of salt on the drainage behavior of aqueous foams. To accomplish this objective, drainage experiments were conducted on aqueous foams. Test variables were foam quality (40–65%), and salt content (0% to 18%), and type. To investigate drainage, the foam was generated in a flow loop and trapped in a vertical test section. Then, the pressure profile in the foam column was measured using ten pressure sensors. Foam drainage is determined as a function of time using measured pressure profiles. The results show that the drainage of NaCl-containing foams decreased with foam quality, whereas the CaCl2-containing foams did not exhibit a clear trend with foam quality. The effect of salt content on foam rheology was minimal.
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Dash U, Misra PK. Organization of amphiphiles. J Colloid Interface Sci 2011; 357:407-18. [DOI: 10.1016/j.jcis.2011.01.087] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2010] [Revised: 01/22/2011] [Accepted: 01/25/2011] [Indexed: 11/16/2022]
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Misra PK, Panigrahi S, Dash U, Mandal AB. Organization of amphiphiles. Part XI: Physico-chemical aspects of mixed micellization involving normal conventional surfactant and a non-ionic gemini surfactant. J Colloid Interface Sci 2010; 345:392-401. [DOI: 10.1016/j.jcis.2010.01.066] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2009] [Revised: 01/19/2010] [Accepted: 01/22/2010] [Indexed: 10/19/2022]
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Misra PK, Mishra HP, Dash U, Mandal AB. Organization of amphiphiles. J Colloid Interface Sci 2009; 333:590-8. [DOI: 10.1016/j.jcis.2009.01.063] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2008] [Revised: 01/23/2009] [Accepted: 01/24/2009] [Indexed: 10/21/2022]
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