Lee Judy, Kentish Sandra, Ashokkumar Muthupandian
Particulate Fluids Processing Centre, Department of Chemical and Biomolecular Engineering, School of Chemistry, University of Melbourne, VIC 3010 Parkville, Australia.
J Phys Chem B. 2005 Aug 4;109(30):14595-8. doi: 10.1021/jp051758d.
The rectified diffusion growth of a single air bubble levitated in an acoustic field (frequency = 22.35 kHz) in water and in aqueous solutions containing surfactants (sodium dodecyl sulfate and sodium dodecylbenzene sulfonate) was investigated. As reported by Crum (J. Acoust. Soc. Am. 1980, 68, 203), the presence of surfactants at the bubble/liquid interface enhanced the growth rate of the bubble by rectified diffusion. It is suggested in this paper that in addition to the effect of surfactants on the surface tension and interfacial resistance to mass transfer, the effect of surface rheological properties may also contribute to the cause of the enhancement observed in the bubble growth rate.
研究了悬浮在水中以及含有表面活性剂（十二烷基硫酸钠和十二烷基苯磺酸钠）的水溶液中的单个气泡在声场（频率 = 22.35 kHz）中的整流扩散生长情况。正如Crum（《美国声学学会杂志》，1980年，68卷，203页）所报道的，气泡/液体界面处表面活性剂的存在通过整流扩散提高了气泡的生长速率。本文提出，除了表面活性剂对表面张力和传质界面阻力的影响外，表面流变性质的影响也可能是观察到气泡生长速率提高的原因之一。
