ELECTROSTATIC AND STERICAL STABILIZATION OF TIO2 DISPERSIONS

Authors
HEIJMAN SGJ STEIN HN
Citation
Sgj. Heijman et Hn. Stein, ELECTROSTATIC AND STERICAL STABILIZATION OF TIO2 DISPERSIONS, Langmuir, 11(2), 1995, pp. 422-427
Citations number
25
Categorie Soggetti
Chemistry Physical
Journal title
Langmuir → ACNP
ISSN journal
07437463
Volume
11
Issue
2
Year of publication
1995
Pages
422 - 427
Database
ISI
SICI code
0743-7463(1995)11:2<422:EASSOT>2.0.ZU;2-I
Abstract
The influence of polyacrylic acid (MW 2000-10 000) on the stability of TiO2 dispersions is investigated both in dilute suspensions (by light transmission) and in concentrated dispersions (by rheology). Polyacry lic acid in low concentrations destabilizes TiO2 dispersions, but at h igher concentrations a stabilizing influence is found. In the high-con centration region, especially stable dispersions can be obtained when electrostatic and steric stabilization act simultaneously.