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Substituted benzotriazole as UV absorber for paints / V. C. Malshe in SURFACE COATINGS INTERNATIONAL. PART B : COATINGS TRANSACTIONS, Vol. 87, B4 (12/2004)

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inSURFACE COATINGS INTERNATIONAL. PART B : COATINGS TRANSACTIONS > Vol. 87, B4 (12/2004) . - p.277-284

Titre :	Substituted benzotriazole as UV absorber for paints
Type de document :	texte imprimé
Auteurs :	V. C. Malshe, Auteur ; S. Elango, Auteur
Année de publication :	2004
Article en page(s) :	p.277-284
Note générale :	Bibliogr.
Langues :	Anglais (eng)
Catégories :	Absorbeurs de rayonnement ultraviolet Antioxydants Benzotriazole Blancheur Brillance (optique) Composés organiques -- Synthèse Jaunissement (défaut) Phénols Photostabilisants Revêtements -- Additifs:Peinture -- Additifs
Index. décimale :	667.9 Revêtements et enduits
Résumé :	Substituted benzotriazoles were synthesised from 4-amino-3-nitro benzophenone and couplers such as b-Naphthol (BN), p-Cresol (PC) and 2,6-xylenol (XY). The reactions were monitored by thin layer chromatography (TLC). The products were characterised by melting point, ultraviolet (UV) and infrared (IR) spectra. Stabilising action of prepared 2-(5-Benzoyl-2H-benzotriazol-2yl)-4methyl phenol, 2-(5-Benzoyl-2H-benzotriazol-2yl)-4,6-dimethyl phenol and 2-(5-Benzoyl-2H-benzotriazol-2yl)-naphthol for protecting paint against photo-oxidation was examined by a QUV weatherometer. The effect of exposure on the properties of paints such as gloss, whiteness and yellowness was evaluated. Results show that paints containing prepared UV absorbers (UVA) possessed better stabilising effects against photo-oxidation than those employed on standard paints available in the market.
Note de contenu :	- EXPERIMENTAL : Materials - Synthesis - analysis - Testing for evaluation of UV absorbers - RESULTS AND DISCUSSION : Gloss - Yellowness and whiteness indices
DOI :	10.1007/BF02699677
En ligne :	https://link.springer.com/content/pdf/10.1007/BF02699677.pdf
Permalink :	https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5449

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