| Titre : |
Solving stain problems : New techniques give insights into resistance |
| Type de document : |
texte imprimé |
| Auteurs : |
Zeena Cherian, Auteur ; Solomon Jacobson, Auteur ; Michael Koganov, Auteur ; Courtney Usher, Auteur ; Venkat Krishnan, Auteur ; Sharon Wilson, Auteur ; Todd Okavage, Auteur |
| Année de publication : |
2020 |
| Article en page(s) : |
p. 28-33 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Décoloration
Epaississants
Granulométrie
Liants
Molécules -- Modèles
Résistance aux taches
Revêtements (produits chimiques):Peinture (produits chimiques)
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Combining long-standing and novel analytical methods had produced powerful results on interactions between common household stains and the coating surface, elucidating the mechanism by which stains cause discoloration. |
| Note de contenu : |
- How have we achieved this ?
- Where do we stand ?
- Materials
- Molecular modelling
- Quartz-crystal microbalance (QCM)
- Atomic force microscopy
- Visual rating and ΔE measurements
- Molecular modelling results
- QCM results
- Atomic force microscopy results
- ΔE measurements and the effect of thickener dosage
- ΔE measurements and the effect of binder chemistry
- Our results
- Table 1 : Binders used for the preparation of paints
- Table 2 : Change in mass per sensor area after flowing stain and subsequent washing calculated using Sauerbrey equation
- Table 3 : Effect of binder chemistry on ΔE values
- Table 4 : Effect of particle size on red wine ΔE values
- Fig. 1 : 3D pictogram of malvidin-3-glucoside molecule
- Fig. 2 : Molecular simulation 3D model of stain molecule and polymer segments
- Fig. 3 : Calculated interaction energies of Malvidin-3-glucoside stain molecule with different thickener polymers from molecular modelling
- Fig. 4 : Interaction energies of Malvidin-3-glucoside stain molecule with different binder polymer molecules calculated from molecular modelling
- Fig. 5 : Quartz crystal microbalance (QCM) results of red wine adsorption on to the paint with and without thickener
- Fig. 6 : Quartz crystal microbalance (QCM) results of balsamic vinegar adsorption on to the paint with and without thickener
- Fig. 7 : Average adhesion forces calculated from AFM lateral force mapping*
- Fig. 8 : Effect of dosage and discoloration of paint surface after stain washing as measured by ΔE
- Fig. 9 : Correlating stain interaction energies and ΔE values associated with red wine stain
- Fig. 10 : Effect of binder particle size on discoloration measured by ΔE. Higher ΔE indicates increased discoloration from stain |
| En ligne : |
https://drive.google.com/file/d/1c1_krSjn0MeoyuQZqvccim6BPgnNtcke/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34337 |
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 7-8 (07-08/2020) . - p. 28-33
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Solving stain problems in EUROPEAN COATINGS JOURNAL (ECJ), N° 7-8 (07-08/2020)
