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Titolo:
Bubble formation in catanionic surfactant solutions under constant-flow conditions
Autore:
Yang, YM; Yeh, SJ; Hsiung, CK; Chien, CL; Chang, CH; Maa, JR;
Indirizzi:
Natl Cheng Kung Univ, Dept Chem Engn, Tainan 70101, Taiwan Natl Cheng KungUniv Tainan Taiwan 70101 Chem Engn, Tainan 70101, Taiwan
Titolo Testata:
JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
fascicolo: 4, volume: 34, anno: 2001,
pagine: 563 - 567
SICI:
0021-9592(200104)34:4<563:BFICSS>2.0.ZU;2-D
Fonte:
ISI
Lingua:
ENG
Soggetto:
ADSORPTION;
Keywords:
bubble formation; catanionic surfactant; constant-flow condition; single orifice; surface relaxation phenomenon;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
13
Recensione:
Indirizzi per estratti:
Indirizzo: Yang, YM Natl Cheng Kung Univ, Dept Chem Engn, Tainan 70101, Taiwan Natl Cheng Kung Univ Tainan Taiwan 70101 , Tainan 70101, Taiwan
Citazione:
Y.M. Yang et al., "Bubble formation in catanionic surfactant solutions under constant-flow conditions", J CHEM EN J, 34(4), 2001, pp. 563-567

Abstract

Two catanionic surfactants were prepared in this work. Equilibrium and dynamic surface tensions and bubble volumes at detachment from a single orifice under constant-now conditions were obtained experimentally for aqueous solutions of these two surfactants, While the catanionic surfactants were very effective in depressing the equilibrium surface tension, the dynamic surface tension data revealed that the surface relaxation for the catanionic surfactants was insignificant in the time period studied. The bubble formation results showed that the bubble volumes at detachment in aqueous solutionsof the catanionic surfactants were hardly different from those in water, The Ruff model, which deals with bubble formation in pure liquids, and the modified puff model, which considers the dynamic surface tension effect, were used to estimate the bubble volumes at detachment in surfactant solutions, It was concluded that dynamic surface tension rather than equilibrium oneis responsible for the bubble formation in the catanionic surfactant solutions.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 12/07/20 alle ore 12:30:09