COALESCENCE BEHAVIOR OF TWO BUBBLES IN STAGNANT LIQUIDS

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

WON KOOK LEE¹  JONG WON KIM¹ 

[1] Department of Chemical Engineering, Korea Advanced Institute of Science & Technology

关键词: Bubble Coalescence;    Bubble Constant;    Coalescence Frequency;    Coalescence Time;    Film Drainage;    Film Stability;   

DOI  :  10.1252/jcej.20.448

来源: Maruzen Company Ltd

【 摘 要 】

References(21)Cited-By(33)Coalescence frequency and lifetimes of thin aqueous films formed between nitrogen bubbles were measured in dilute solutions of sodium lauryl sulfate, n-amyl alcohol, and 1-butanol. The bubble pairs were formed on two adjacent capillary tubes by use of a microprocessor-controlled stepping motor, and the coalescence time was determined by an optical sensing method. For low-molecular weight alcohols such as 1-butanol and n-amyl alcohol, the transition concentration decreased with increase of bubbling frequency. But for high-molecular weight surfactants such as sodium lauryl sulfate, it increased with bubbling frequency. Coalescence times increased with solute concentration and also with surface tension gradient.

【 授权许可】

Unknown