[article]
| Titre : |
Volatile Organic Compounds (VOCs) in paints and its reduction |
| Type de document : |
texte imprimé |
| Auteurs : |
Asim K. Jana, Auteur ; Amit Jain, Auteur ; Jatinder Kumar, Auteur |
| Année de publication : |
2005 |
| Article en page(s) : |
p. 67-72 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
The basic components of the paints are pigments, binders, film formers, additives and solvents. Thinning solvents are sometimes added before application. Many of the chemicals in conventional paint are known or suspected to be carcinogens. These paints and solvents contain Volatile Organic Compounds (VOC) such as xylene, toluene, methyl or ethyl ketone, etc of concentration up to 550 gm/liter and play a great role in air pollution. VOCs also react with NOx in the atmosphere and give rise to ground level ozone and photochemical smog which are harmful. Environmental pollution aspects of the conventional paints and new developments in paint technology to reduce pollution have been discussed. The potential alternatives are reducing the amount of solvents in the formulation to make high solid content paint, substitution of VOCs with less damaging solvents such as water based paints and the substitution of aromatic with aliphatic hydrocarbon solvents. Coating the metal items using powder technology, or the use of ultraviolet light to promote polymerization of the coating film are also the emerging technologies. |
| Note de contenu : |
- Paints components and their functions
- Environmental pollution
- Developments in paint technology |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11611 |
in PAINTINDIA > Vol. LV, N° 12 (12/2005) . - p. 67-72
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