| Titre : |
Mechanical consequences of coating penetration |
| Type de document : |
texte imprimé |
| Auteurs : |
Margaret Joyce, Auteur ; Roger Hagen, Auteur ; Alf de Ruvo, Auteur |
| Année de publication : |
1997 |
| Article en page(s) : |
p. 53-58 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Analyse mécanique dynamique
Epaisseur -- Mesure
Papier -- Propriétés mécaniques
Pénétration (physique)
Procédés de fabrication
Rigidité (mécanique)
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Light weight coated papers were evaluated by dynamic mechanical analysis. In addition, water treated papers were studied to separate the contribution from the wetting-drying cycle on the response and thickness of the sheet. Measurements in three-point bending were performed in both the glassy and rubbery regions of the binder. The influence of coating penetration on bending stiffness was determined. At low coat weights, the bending stiffness of the base paper increased linearly. This was attributed to the sandwich structure achieved. As the coat weights continued to increase, the bending stiffness reached a constant value, then began to decrease. The decrease in bending stiffness was determined to be caused by the influences of coating water in the base paper. At higher coat weights, sufficient coating water was present to interfere with fiber-to-fiber bonds and release dried in strains. Variations in coating penetration and coating layer thickness were studied by electron microscopy. The results show the possibility of using dynamic mechanical testing to monitor the depth of coating penetration and thickness of the coating layer. |
| Note de contenu : |
- METHODS AND MATERIALS : Instrumentation and test procedures
- COATING DISTRIBUTION
- RESULTS AND DISCUSSION : Thickness - Environmental scanning electron microscope - Bending stiffness |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18246 |
in JOURNAL OF COATINGS TECHNOLOGY (JCT) > Vol. 69, N° 869 (06/1997) . - p. 53-58
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