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Coatings for high temperature service environments / R. M. Agashe in PAINTINDIA, Vol. LII, N° 4 (04/2002)
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Titre : Coatings for high temperature service environments Type de document : texte imprimé Auteurs : R. M. Agashe, Auteur Année de publication : 2002 Article en page(s) : p. 49-58 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.9 Revêtements et enduits Résumé : Painting of surfaces which are exposed to an elevated temperature represents one of the most problematic and challenging applications for the coating engineers. The consequences of thermal deterioration are important in many applications, viz:, chemical and petrochemical process equipments, mining and gas production, missiles and aerospace applications, where temperature is very high and good thermal resistance is of prime importance. Heated surface on stacks, boilers, chimneys and similar equipment require the highest level of coating technology to withstand the corrosive fumes, cyclic heating operations, thermal expansion and atmospheric weathering. The article discusses the process of thermal degradation, types of binders and pigments commonly used for such coatings, methods of surface preparation, various test methods to determine the heat resistance performance and the new emerging trends. Note de contenu : - Thermal degradation process
- Mechanism of attack
- Selection of binder : Air oxidizable resin based - Thermoplastic resin based - Chemically cured resin based - Moisture cured polyurethanes - Polyimides based - Silicate resin based
- Silicone resins
- Effect of heat on polysiloxane coatings : Temperature range 120-204°C - Temperature range 204-316°C - Temperature range 316-427°C - Temperature range 427-538°C - Temperature range 538-760°C
- Pigments used for heat resistant coatings
- Effect of heat on organic pigment
- Effect of heat on inorganic coloured pigments
- Metallic pigments
- Ceramic pigments
- Fire retardant coatings
- Test methods for checking the heat resistance performance : - Empirical test - Thermogravimetric analysis - Differential thermal analysis - Differential scanning calorimetric - Thermo mechanical analysis
- Curing for heat resistant coatings
- Surface preparation
- New emerging trendsPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12342
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