| Titre : |
Improving performance |
| Type de document : |
texte imprimé |
| Auteurs : |
William J. Rosano, Auteur ; Marie Bleuzen, Auteur ; Gary R. Larson, Auteur ; Leo J. Procopio, Auteur |
| Année de publication : |
2007 |
| Article en page(s) : |
p. 18-21 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Brillance (optique)
Chlorure de polyvinyle
Dioxyde de titane
Encapsulation
Latex
Plan d'expérience
Résistance à l'abrasion
Résistance au lavage
Revêtements en phase aqueuse:Peinture en phase aqueuse
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
The performance and appearance of pigmented waterborne coatings strongly depend on the degree to which the various particles (pigments and polymer) are dispersed throughout the dried film. The ideal state of dispersion is usually when all particles are reduced to and remain as non-flocculated primary particles.
Polymer particles, pigments and fillers, not optimally dispersed can adversely affect the ability of the coating to provide adequate barrier (to electrolytes, water, gases, etc) properties. In addition, poorly dispersed pigments and fillers can affect the ability to add colourant as well as paint colour stability under the applied shear forces that can occur during application (eg brushing and spraying). |
| Note de contenu : |
- More efficient interaction between pigment and latex polymers
- Experimental design
- Improved gloss through more even pigment dispersion
- Improved hiding power
- Superior protective properties
- Improved wash and scrub resistance
- Pigment particles with superior encapsulation
- Quality improvements and cost advantages
- TABLES : 1. Film gloss and gloss retention after UV-A exposure of 18 PVC white paints based on CFM or SM containing binders - 2. Film gloss (20°/60°) as a functionof TiO2 loading of paints based on CFM or SM containing binders - 3. Contrst ratio as a functionof TiO2 loading for paints based on CFM or SM containing binders - 4. Blister formation of 18 PVC white paints based on CFM or SM containing binders after a two week exposure to salt frog - 5. Paint removal after 200 scrub cycles of an above critical PVC paint - 6. Percent latex adsorbed for polymer composition based on CFMs and SMs
- FIGURES : 1. FE-SEM of dried 18 PVC TiO2 paints cast one on top of the other based on composition A using CFM (top half ofimage) and SM (lower half of image) - 2. Coating resistance (Rc) as a function of exposure time to a 5% NaCl solution as derived from EIS spectra of SM (red trace, closed symbols) and CFM (blue trace) based polymers formulated in white gloss paints |
| En ligne : |
https://drive.google.com/file/d/1CGxKiTXix5LafmbC9emeI8eH9Rnd4W0T/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27308 |
in POLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 197, N° 4515 (08/2007) . - p. 18-21
Aller sur edunet
Accueil
Improving performance in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 197, N° 4515 (08/2007)
