Premium
The effect of TiO 2 pigment on the performance of paratoluene sulphonic acid catalysed paint systems
Author(s) -
Reck Elizabeth,
Seymour Steve
Publication year - 2002
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/1521-3900(200209)187:1<707::aid-masy707>3.0.co;2-5
Subject(s) - steric effects , materials science , chemistry , chemical engineering , organic chemistry , engineering
The work has highlighted the importance of choosing the correct pigment for paratoluene sulphonic acid (PTSA) catalysed paints. Generally, surface treated TiO 2 grades which are basic in nature resulted in the best optical performance in comparison to acidic surface treated grades. The relative performance of the acidic surface treated grade can be improved by increasing the PTSA level in the paint or by using a resin with a higher acidity level. It is postulated that for these TiO 2 grades, the higher acid levels were found to give better steric repulsion. However, overall, the basic surface treated grade retained the best optical performance in PTSA catalysed paint systems.