A direct test on the possibility of an aggregate in dispersion being disrupted by shear flow

Authors
Sun, ZW Li, YM Xu, SH Lou, LR Dai, GL Dong, XQ
Citation
Zw. Sun et al., A direct test on the possibility of an aggregate in dispersion being disrupted by shear flow, J COLL I SC, 242(1), 2001, pp. 158-163
Citations number
22
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
JOURNAL OF COLLOID AND INTERFACE SCIENCE
ISSN journal
00219797 → ACNP
Volume
242
Issue
1
Year of publication
2001
Pages
158 - 163
Database
ISI
SICI code
0021-9797(20011001)242:1<158:ADTOTP>2.0.ZU;2-R
Abstract
A direct test of the adhesive strength between particles (2 mum polystyrene latex spheres) in aggregate was carried out to probe the possibility of ag gregates being disrupted by convection flows of certain shearing rates. Opt ical tweezers were used to manipulate individual particles or aggregates fo r tests in the flow field. The results of our experiment are analyzed to un derstand how shear flow affects the coagulation process. (C) 2001 Academic Press.