| Titre : |
Aspects of pigment dispersion - A review |
| Type de document : |
texte imprimé |
| Auteurs : |
Pramod Raman Natuvetty, Auteur |
| Année de publication : |
1999 |
| Article en page(s) : |
p. 53-58 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Tags : |
Peinture Fabrication Broyage Pigment Dispersion 'Article synthèse' |
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Experience shows that successful pigment dispersion is as important to the optical and protective properties of a coating as the correct selection and proportions of the constituent raw materials. A study of pigment dispersion involves an understanding of the formation and properties of the solid/liquid interface. In the early stages of the process the solid/air interface is replaced by one between the solid and liquid. The pigment powder consists of aggregates/agglomerates of small particles and mechanical work is performed in dispersing particles into a liquid. The forces that exist at the interface determine the ease with which the process can be brought about, once dispersed the particles are free to move in their new environment and flocculation is prevented by various chemical and physical processes, all of which relate to the character of the solid/liquid interface. It is not surprising therefore that studies of these interfaces form an integral part of our understanding of the dispersion process, and of those aspects of pigment performance that are dependent on the state of dispersion. |
| Note de contenu : |
- PHENOMENON CALLED DISPERSION : Wetting - Grinding (dipersion) equipment
- CONCLUSION : Stabilisation - Influencing factors
- REQUIREMENTS DOR STABLE PIGMENT DISPERSION
- EVALUATION OF DEGREE DISPERSION
- INFLUENCE OF PIGMENT DISPERSION ON PAINT PROPERTIES |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12974 |
in PAINTINDIA > Vol. XLIX, N° 6 (06/1999) . - p. 53-58
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Aspects of pigment dispersion - A review in PAINTINDIA, Vol. XLIX, N° 6 (06/1999)
