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The control of foaming. II. The breakdown mechanisms and volume of dynamic foams

โœ Scribed by Pattle, R. E.

Publisher
Wiley (John Wiley & Sons)
Year
1950
Weight
451 KB
Volume
69
Category
Article
ISSN
0368-4075

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โœฆ Synopsis

mechanisms controlling the volume of foam for cd by air bkgbling continously through a liquid have been studicdTExamples are given in which onc-coalescence of bubbles within the foam-. or another-bursting of bubblos at the top of the foam-predominates. T h e cffcct of alcohoh:in enhancing foaming, as well as in destroying foam)is noted. T h e effect of the g m flow rate on foam volume has b e d investigated and$ found to)diffcdfrom liquid to liquid. N o simple relation between thc two exists In the present state of our knowledge the foam volume under-& given circumstances a n be found only by experiment.

' foam time ' of the liquid. Some experiments werc carried out

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โœ M. H. Ozkul; J. E. Mark; J. H. Aubert ๐Ÿ“‚ Article ๐Ÿ“… 1993 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 508 KB

Microcellular foams were prepared by the thermally induced phase-separation technique, which yields materials having very small cell dimensions (0.1-20 pm) . The polymers employed were isotactic polystyrene, polyacrylonitrile, poly (4-methyl-l-pentene), polyurethane, and Lycram and the resulting foa