| Titre : |
Mar resistance of automotive clearcoats : relationship to coating mechanical properties |
| Type de document : |
texte imprimé |
| Auteurs : |
Jeanne L. Courter, Auteur |
| Année de publication : |
1997 |
| Article en page(s) : |
p. 57-63 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Automobiles -- Revêtements:Automobiles -- Peinture
Nettoyage
Résistance à l'abrasion
Revêtements -- Propriétés mécaniques:Peinture -- Propriétés mécaniques
Vernis
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Literature discussing coating mechanical properties and mar resistance is reviewed. Commercial car washing is the standard environmental source of damage. Most lab tests involve rubbing the coating with an abrasive and measuring the level of damage. The types of deformation that result are elastic, plastic, and fracture. For glassy coatings mar resistance is optimized at an intermediate toughness. The author proposes that optimization occurs due to the minimization of the number of both plastic- and fracture-type scratches. In addition, minimization occurs because the yield stress and toughness are in balance. Elastomeric coatings appear to have a minimum in mar resistance at intermediate crosslink density |
| Note de contenu : |
- Definition
- Customer need
- Environmental factors causing marring
- Assesing mar resistance
- Understanding the marning process
- Visual effect of scratches
- Relationship of basic mechanical properties to mar resistance
- Plastic-type scratches
- Elastomeric coating
- Glassy coatings
- Hypothesis |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18108 |
in JOURNAL OF COATINGS TECHNOLOGY (JCT) > Vol. 69, N° 866 (03/1997) . - p. 57-63
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Mar resistance of automotive clearcoats : relationship to coating mechanical properties in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 69, N° 866 (03/1997)
