| Titre : |
Influence of pigment packing behavior on the adhesive requirements of aqueous paper coatings |
| Type de document : |
texte imprimé |
| Auteurs : |
Karl W. Howard, Auteur ; Kevin T. Hodgson, Auteur |
| Année de publication : |
2015 |
| Article en page(s) : |
p. 237-245 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Adhésion
Argile
Carbonate de calciumLe carbonate de calcium (CaCO3) est composé d'un ion carbonate (CO32-) et d'un ion calcium (Ca2+), sa masse molaire est de 100,1 g/mole.
C'est le composant principal du calcaire et de la craie, mais également du marbre. C'est aussi le principal constituant des coquilles d'animaux marins, du corail et des escargots.
Colles:Adhésifs
Concentration pigmentaire volumique
Kaolin
Liants
Mélanges (chimie)
Papier
Pigments inorganiques
Revêtements -- Propriétés mécaniques
Revêtements en phase aqueuse
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
The amount of adhesive included in an aqueous paper coating formulation is critical to the performance and appearance of the final product. While the time-honored “weight ratios” are typically used to formulate pigmented coatings for paper, pigment volume concentration (or alternatively, % void volume) has been found to be much more useful in determining the interactions of pigments with the adhesive on the properties of such aqueous coatings. In this study, slurries of commercial kaolin clay and ground calcium carbonate pigments used in papermaking applications were blended and then centrifuged to determine the maximum packing efficiency of the pigments. Isolated films of coatings made from selected pigment blends and increasing levels of latex adhesive were tested for void volume percentage and tensile modulus. Based on these results, a regression equation between pigment interstitial space and the mechanical strength of different coating films was established. |
| Note de contenu : |
- EXPERIMENTAL MATERIALS AND METHODS
- RESULTS AND DISCUSSION : Sediment void volume from centrifugation - Void volume percentage of dried coating films
- Mechanical strength of dried coating films - High binder levels and the CPVC |
| DOI : |
10.1007/s11998-014-9645-0 |
| En ligne : |
https://link.springer.com/content/pdf/10.1007%2Fs11998-014-9645-0.pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=23643 |
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 12, N° 2 (03/2015) . - p. 237-245
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