Effect of Solid Material and Surfactant Presence on Interactions of Bubbles with Horizontal Solid Surface

0346362 - ÚCHP 2011 RIV CA eng J - Článek v odborném periodiku
Zedníková, Mária - Vobecká, Lucie - Vejražka, Jiří
Effect of Solid Material and Surfactant Presence on Interactions of Bubbles with Horizontal Solid Surface.
Canadian Journal of Chemical Engineering. Roč. 88, č. 4 (2010), s. 473-481. ISSN 0008-4034. E-ISSN 1939-019X
Grant CEP: GA ČR GA104/07/1110; GA AV ČR(CZ) KJB200720801; GA AV ČR(CZ) IAA200720801
Výzkumný záměr: CEZ:AV0Z40720504
Klíčová slova: bubble motion * surfactants * bubble-wall interaction
Kód oboru RIV: CI - Průmyslová chemie a chemické inženýrství
Impakt faktor: 0.707, rok: 2010

The collision and attachment of a bubble with immersed horizontal solid surface is studied experimentally. The effect of surface material and of surfactant presence is investigated. Cleaned glass, polypropylene, polyethylene and Teflon are used as the material of solid and α-terpineol is used as the surfactant. The effect of solid material on the collision is minor but the presence of surfactant suppresses bubble rebound from the surface. The bubble attachment to the hydrophobic surface occurs long time after the first collision. The time required for the formation of three-phase contact line depends both on solid material and α-terpineol presence.
Trvalý link: http://hdl.handle.net/11104/0187410