Titre : |
Adhesion promoter : Water based emulsion paints-94 |
Type de document : |
texte imprimé |
Auteurs : |
M. Veeramani, Auteur |
Année de publication : |
2022 |
Article en page(s) : |
p. 113-116 |
Note générale : |
Bibliogr. |
Langues : |
Anglais (eng) |
Catégories : |
Promoteurs d'adhésion Revêtements en phase aqueuse -- Additifs:Peinture en phase aqueuse -- Additifs
|
Index. décimale : |
667.9 Revêtements et enduits |
Résumé : |
The adhesion promoter for paint is an additive to promote adhesion of the film to the substrate. It has an affinity for the substrate and the applied coating and forms a permanent and strong bonding. Adhesion promoters are bi-functional materials that increase adhesive strength between the coating and the substrate and sometimes are referred to as coupling agents. Unlike priming systems, adhesion promoters are generally applied at thinner film thicknesses. An adhesion promoter's effectiveness depends on both the substrate and the adhesive being used. Surface pre-treatments, such as solvent cleaning or mechanical etching and corona treatment, can be used with adhesion promoters as part ofa pre-treatment method. Within a class of materials, the functionality on the backbone of the molecule wi II vary based on the resin system employed as well as the substrate to which it is attached. Adhesion is one of the most important properties of both decorative and protective coatings. Many of the additives used in coating formulations can have a negative impact on the overall adhesion behaviour, even for surfaces that would not be considered difficult for adhesion. Avoidance of deleterious additives is preferred, but at times they are needed to impart other properties to the coating. |
Note de contenu : |
- How to achieve perfect coating adhesion ?
- What is adhesion of coatings ?
- Theories of adhesion
- Adsorption theory
- Chemisorption theory
- Mechanical interlocking
- Electrostatics (electronic) theory
- Diffusion theory |
En ligne : |
https://drive.google.com/file/d/1hpJcy-inSjoxynDUZYIk2T21mQicppIJ/view?usp=drive [...] |
Format de la ressource électronique : |
Pdf |
Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38543 |
in PAINTINDIA > Vol. LXXII, N° 10 (10/2022) . - p. 113-116