Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Air bubble-induced detachment of polystyrene particles with different sizes from collector surfaces in a parallel plate flow chamber
Autore:
Gomez-Suarez, C; van der Mei, HC; Busscher, HJ;
Indirizzi:
Univ Groningen, Dept Biomed Engn, NL-9713 AV Groningen, Netherlands Univ Groningen Groningen Netherlands NL-9713 AV V Groningen, Netherlands
Titolo Testata:
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
fascicolo: 3, volume: 186, anno: 2001,
pagine: 211 - 219
SICI:
0927-7757(20010815)186:3<211:ABDOPP>2.0.ZU;2-X
Fonte:
ISI
Lingua:
ENG
Soggetto:
AQUEOUS-ELECTROLYTE; SILICONE-RUBBER; ADHESION; REMOVAL; ATTACHMENT; DEPOSITION; FORCES; MODEL;
Keywords:
detachment; air bubble; liquid-air interface; particle size; parallel plate flow chamber;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
27
Recensione:
Indirizzi per estratti:
Indirizzo: Gomez-Suarez, C Univ Groningen, Dept Biomed Engn, Antonius Deusinglaan 1, NL-9713 AV Groningen, Netherlands Univ Groningen Antonius Deusinglaan 1 Groningen Netherlands NL-9713 AV
Citazione:
C. Gomez-Suarez et al., "Air bubble-induced detachment of polystyrene particles with different sizes from collector surfaces in a parallel plate flow chamber", COLL SURF A, 186(3), 2001, pp. 211-219

Abstract

Particle size was found to be an important factor in air bubble-induced detachment of colloidal particles from collector surfaces in a parallel plateflow chamber and generally polystyrene particles with a diameter of 806 nmdetached less than particles with a diameter of 1400 nm. Particle detachment increased linearly with decreasing air bubble velocity and increasing liquid-air interfacial tension, regardless of particle diameter. The influence of air bubble velocity and liquid-air interfacial tension upon particle detachment was stronger on a hydrophilic collector surface than on a hydrophobic collector surface, whereas detachment was also less on positively-charged collector surfaces. In general, polystyrene particles with a diameter of 806 nm were less sensitive to the air bubble velocity than particles witha diameter of 1400 nm. However the larger particles were less sensitive tovariations in liquid-air interfacial tension than the smaller ones. Hence,it is proposed that for larger particles, the liquid film in between the air bubble and the particle takes more time to thin down and form the three-phase contact, necessary to induce a detachment force. (C) 2001 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/12/20 alle ore 19:55:22