Influence of the foam film type on the foam drainage process
β Scribed by Khr. Khristov; D. Exerowa
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 445 KB
- Volume
- 94
- Category
- Article
- ISSN
- 0927-7757
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β¦ Synopsis
The effect of the type of foam films: thin, common black (CBF) and Newtonian black (NBF), on the process of foam drainage is studied. The experimental method employed makes it possible to perform precise hydrodynamic investigations which indicate that the process of foam drainage is influenced by the type of foam films. The difference observed between the rate of drainage of foams with CBF or NBF allowed determination of the critical electrolyte concentration C el β’ cr of the CBF/NBF transition.
π SIMILAR VOLUMES
The stability of vertical liquid films produced from aqueous solutions of polyoxyethylene alkyl ether (CnEm) was studied by monitoring the dynamic surface tension (β₯ t ) and aqueous core thickness of a vertical foam film (d 2 ) measured by FT-IR. The temperature dependence of the drainage patterns o