| Titre : |
New advances in rheological performance in high solids marine and protective coatings |
| Type de document : |
texte imprimé |
| Auteurs : |
Tony Hennessy, Auteur |
| Année de publication : |
2014 |
| Article en page(s) : |
p. 28-31 |
| Langues : |
Anglais (eng) |
| Catégories : |
Argile
Cires
Epaississants
Formulation (Génie chimique)
Haut extrait sec
PolyamidesUn polyamide est un polymère contenant des fonctions amides -C(=O)-NH- résultant d'une réaction de polycondensation entre les fonctions acide carboxylique et amine.
Selon la composition de leur chaîne squelettique, les polyamides sont classés en aliphatiques, semi-aromatiques et aromatiques. Selon le type d'unités répétitives, les polyamides peuvent être des homopolymères ou des copolymères.
Revêtements bi-composant:Peinture bi-composant
Rhéologie
Thixotropie
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Recent changes have occurred to the amount of solvent
used in industrial coatings, particularly maintenance
and marine coatings. Over the past few years the amount of solvent used in these coatings has decreased significantly. This has affected the properties of the coatings and the application techniques. As the solids contents of industrial coatings increase the number of applications has decreased, which has provided cost savings for the customer. Lower solvent levels have also helped to meet tighter global emission regulations and the use of HAPS-free solvents allow some coatings manufacturers to daim 100% solids status.
Although the decrease of solvent has proved a benefit to manufacturers and customers, it has had a wide impact on the use of rheology modifiers and their ability to provide enough viscosity and sag resistance and also intercoat adhesion effects. In older solvent-rich formulations, the rheology agents would disperse easily, the solvent coating would wet out on the substrats and would adhere well.
In the current low solvent environment these obstacles have to be overcome. |
| Note de contenu : |
- Organic rheological additives in high solids
- Lower solids industrial coatings
- Transition to high solids
- New organic thixotropes |
| En ligne : |
https://drive.google.com/file/d/1iIoxk63s7t_zLou4RRF4AqQdpGx-6oo6/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=21603 |
in POLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 204, N° 4597 (06/2014) . - p. 28-31
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