| Titre : |
Alkylated phenolic antioxidants for paints |
| Type de document : |
texte imprimé |
| Auteurs : |
V. C. Malshe, Auteur ; S. Elango, Auteur |
| Année de publication : |
2005 |
| Article en page(s) : |
p. 145-148 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Alkylation
Antioxydants
Blanc (couleur)
Brillance (optique)
Evaluation
Formaldéhyde
Jaunissement (défaut)
Phénols
Résistance au jaunissement
Revêtements -- Additifs:Peinture -- Additifs
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Polymeric antioxidants based on p-cumyl phenol formaldehyde resin (PCPF), p-nonyl phenol formaldehyde (PNPF) and p-octyl phenol formaldehyde (POPF) were prepared by condensation reaction of respective phenols with formaldehyde in presence of an acid catalyst. The reactions were monitored by TLC and the melting point of the products was determined by open capillary method. Stabilising the action of PCPF, PNPF for protecting paint against thermal oxidation was tested using a QUV weatherometer. The effect of exposure on the properties of paints such as gloss, whiteness and yellowness were evaluated. Results show that paints containing these new polymeric antioxidants possess better stabilising effects against photo-oxidation than those employed in standard paints available in the market. |
| Note de contenu : |
- EXPERIMENTAL : Materials - Synthesis
- RESULTS AND DISCUSSION : Evaluation of prepared compounds as antioxidants
- GLOSS : Effect of antioxidants (at 10, 100, 200 and 300 ppm) on gloss - Whiteness and yellownes - Effect of antioxidants (at 10, 100, 200 and 300 ppm) on whiteness - Effet of antioxidants (at 10, 100, 200 and 300 ppm) on yellowness |
| DOI : |
10.1007/BF02699547 |
| En ligne : |
https://link.springer.com/content/pdf/10.1007/BF02699547.pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5429 |
in SURFACE COATINGS INTERNATIONAL. PART B : COATINGS TRANSACTIONS > Vol. 88, B2 (05/2005) . - p. 145-148
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