| Titre : |
The effects of neutralizing bases on the water sensitivity of HEURASE rheology modifiers and their performance in low VOC paints |
| Type de document : |
texte imprimé |
| Auteurs : |
Greg D. Shay, Auteur ; J. L. Stallings, Auteur ; P. J.-M. Manus, Auteur |
| Année de publication : |
1997 |
| Article en page(s) : |
p. 285-293 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Tags : |
'Peinture eau' Adjuvant Epaississant 'Propriété rhéologique' 'Composé hydrophobe' Uréthane Ethoxylate Sorption 'Vapeur d'eau' Neutralisation 'Base chimique' |
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Thickeners and rheology modifiers (TRMs collectivity) are necessary ingredients in nearly all architectural and industrial water-borne coatings formulations. The majority of these coatings additives are organic polymers of either the associative or the non-associative variety depending on the primary mode of thickening. As such, they are film-formers to varying degrees and technically could be considered part of the binder system in a coating. When they are viewed in this capacity, they comprise a minor though important fraction of the total binder in a typical paint formulation.
Based on a recent survey of some 250 architectural interior and exterior coating formulas obtained from supplier literature, the average concentration of TRMs on an active weight basis was approximately 2,5% on latex binder solids. Though the amount is relatively small, most of these TRMs are inherently water soluble and considerably lower in molecular weight than the most latex binders, and because of this, these TRMs tend to impart some degree of water sensitivity to the coating formulations in which they are incorporated. Among the properties that may be affected are scrub resistance, wet adhesion, blister resistance and corrosion resistance. |
| Note de contenu : |
- HEURASE TRMs
- Determining the moisture affinity of additives by water vapour sorption
- Hydrophilicity for HEURASE relative to other TRMs
- Effect of ionization and base volatility on WVS of HEURASE films
- Effect of base type on WVS
- WVS on paints containing HEURASE with different neutralizing bases
- HEURASE neutralizing bases in a low VOC coating formulation
- HEURASE neutralizing agents in low VOC paints
- HEURASE relative to commercial and cellulosic thickened paints |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=17191 |
in SURFACE COATINGS INTERNATIONAL > Vol. 80, N° 6 (06/1997) . - p. 285-293
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The effects of neutralizing bases on the water sensitivity of HEURASE rheology modifiers and their performance in low VOC paints in SURFACE COATINGS INTERNATIONAL, Vol. 80, N° 6 (06/1997)
