Résumé : |
Thixotropes are based on organoclay chemistry.
In the paint and coatings industry the use and the knowledge of additives was always an important part of success. Little amounts can change the performance a lot. Among the wide spread classes of additives the thickeners play an important role. Even mostly just called 'thickeners', they are mainlt thixotropes, which give the coating its typical application and storage properties. The largely used thixotropes are organoclays, fumed silicas and castor waxes. Among all applications, there are typical ones for each kind of thixotrope, defined by its inherent strength. This paper concentrates on a new kind of thixotrope which is based originally on organoclay chemistry but spreads out the application areas to new grounds, showing unique properties - the mixed mineral thixotropes - or MMT. |