PREPARATION OF SUBMICRON SPHERICAL-PARTICLES OF SILICA BY THE WATER-IN-OIL MICROEMULSION METHOD

Authors
WANG W FU XA TANG JA JIANG L
Citation
W. Wang et al., PREPARATION OF SUBMICRON SPHERICAL-PARTICLES OF SILICA BY THE WATER-IN-OIL MICROEMULSION METHOD, Colloids and surfaces. A, Physicochemical and engineering aspects, 81, 1993, pp. 177-180
Citations number
10
Categorie Soggetti
Chemistry Physical
Journal title
Colloids and surfaces. A, Physicochemical and engineering aspects → ACNP
ISSN journal
09277757
Volume
81
Year of publication
1993
Pages
177 - 180
Database
ISI
SICI code
0927-7757(1993)81:<177:POSSOS>2.0.ZU;2-Y
Abstract
Submicron spherical particles of colloidal silica were prepared by the hydrolysis of sodium silicate in a Triton X-100-hexanol-cyclohexane-w ater microemulsion system. The average diameter of the silica particle s obtained was about 30 nm. The formation of a microemulsion by using a cyclohexane solution of Triton X-100 was described. The effects of t emperature and the concentration of the aqueous Na2SiO3 solution on th e solubilization were investigated and the results showed that the sol ubilization decreased with increasing concentration of Na2SiO3 and tha t an optimum temperature existed for the system.