Titre : |
Hard minerals enhance powder coating performance |
Type de document : |
texte imprimé |
Auteurs : |
Kevin M. Biller, Auteur |
Année de publication : |
2022 |
Article en page(s) : |
p. 32-34 |
Langues : |
Anglais (eng) |
Catégories : |
Alumine Carbure de silicium Charges (matériaux) Formulation (Génie chimique) Hydroxyalkylamide Néphéline Syénite Polyesters Résistance à l'abrasion Revêtement poudre -- Additifs
|
Index. décimale : |
667.9 Revêtements et enduits |
Résumé : |
The author discusses the use of hard minerals to enhance powder coating performance.
Powder coatings continue to expand their share of the industrial coatings market mainly because of their high performance combined with excellent economics. The application of powder coatings can be highly efficient as the oversprayed material can be collected and recycled back into the finishing process. This minimises waste streams, which allows powder's environmental profile to align well with both corporate and regulatory sustainability goals.
Experts forecast robust growth of powder coatings. Global sales of powder coatings in 2021 are estimated to be around US$12.5bn (€10.6bn) with a volume of approximately 5.5bn lbs. (2.5M tonnes). Growth is projected at 3.9 to 5.4% per annum for the next five years.
Abrasion resistance in powder coatings is an important property. Some powders are used to coat items that are subjected to extreme environments such as oil and gas transmission pipelines, whereas other powder coatings are used in decorative applications where appearance is critical. These decorative finishes must maintain their appearance after the handling of parts during assembly and everyday wear and tear.
Improving abrasion resistance is a sought-after goal of powder coating formulators, whether for functional or aesthetic purposes. The use of high hardness minerai fillers is considered one avenue to increase abrasion resistance in powder coatings. This study examines the effect that white fused alumine, nepheline syenite and silicon carbide have on the abrasion resistance of a common powder coating system based on polyester-HAA (hydroxy-alkyl amide) chemistry. |
Note de contenu : |
- WESTER MINERALIEN : Objective - Materials - Formulation platform - Processing conditions
- RESULTS : Processability - Aesthetics - Rheology - Colour - Mechanical properties - Abrasion resistance |
En ligne : |
https://drive.google.com/file/d/1B1yHJEY9fCmu0wUDOmIOxhNoLrqVfbd7/view?usp=drive [...] |
Format de la ressource électronique : |
Pdf |
Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36972 |
in POLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 212, N° 4673 (02/2022) . - p. 32-34