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Tio2 efficiency in coatings : products and techniques for opacity optimisation / Paul Dietz in SURFACE COATINGS INTERNATIONAL, Vol. 99.2 (04-05/2016)  

[article]  inSURFACE COATINGS INTERNATIONAL > Vol. 99.2 (04-05/2016) . - p. 91-96 Titre : Tio2 efficiency in coatings : products and techniques for opacity optimisation Type de document : texte imprimé Auteurs : Paul Dietz, Auteur Année de publication : 2016 Article en page(s) : p. 91-96 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Dioxyde de titane Opacité (optique) Index. décimale : 667.9 Revêtements et enduits Résumé : For those who have been in the coatings industry long enough, the rollercoaster ride of TiO2 price comes as no surprise. That said, the day of an even 10-year cycle in price have changed to shorter periods of high price (often painfully high) followed by longer periods of relatively low price (painfull for the suppliers). Even when relatively "cheap", TiO2 continues to be one of the most expensive raw materials in a coating, so ensuring that the pigment is used correctly and efficiently remains a crucial busines objective. Note de contenu : - TiO2 SELECTION - PIGMENT DISPERSION : Solvent systems - Water-based systems - The role of pH and surface charge - Dispersants and dispersant requirements - Physical dispersion - COST-EFFECTIVE OPACITY - ENGINEERED COMPOSITE TECHNOLOGY - FP-PIGMENTS' OPACITY PIGMENT - TABLES : 1. Points to consider when choosing your TiO2 - 2. Means of achieving cost-effective opacity in coatings - FIGURES : 1. Relative undertone of TiO2 pigments due to pigment crystal size - 2. Example of a mobility curve for an alumin/zirconia treated TiO2 pigment - 3. Effect of pH on dispersion - 4. Dispersant demand curves for anionic and steric stabilisers - 5. Dispersant demand determination for two dispersants - 6. Dispermat dissolver used at FP-pigments - 7. Pigment flocculation due to soluble salt concentration - 8. Pigment flocculation and crowding upon drying - 9. Schematic of pigment crowding by extenders - 10. SEM ans schematic representation of FP-pigments' opacity pigment - 11. Typical performance of the FP-460 opacity pigment in a German DIY matt paint - 12. Comparison of loose blend with composite product - 13. Reduction of the "window" effect when using FP-pigment's composite compared to comparable sized extender - 14. Use of both a functional extender and FP-pigments opacity pigment to reduce TiO2 and improve formulation costs En ligne : https://drive.google.com/file/d/1ixyZYQh7Yy5_9OsyAlI1_BxkRygKWGRP/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=26189 [article]

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Meeting current and future legislation with Optifilm enhancer 400 / Carlo Testa in SURFACE COATINGS INTERNATIONAL, Vol. 99.2 (04-05/2016)  

[article]  inSURFACE COATINGS INTERNATIONAL > Vol. 99.2 (04-05/2016) . - p. 98-100 Titre : Meeting current and future legislation with Optifilm enhancer 400 Type de document : texte imprimé Auteurs : Carlo Testa, Auteur ; Louise Taylor, Auteur ; Ralf Taube, Auteur Année de publication : 2016 Article en page(s) : p. 98-100 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Coalescence (Sciences physiques) Evaluation Odeurs Qualité -- Contrôle Résistance à l'abrasion Revêtements -- Analyse:Peinture -- Analyse Index. décimale : 667.9 Revêtements et enduits Résumé : In recent years, several global voluntary and mandatory schemes have been introduced to improve indoor air quality by limiting emissions from materials. In many cases it is neither feasible nor desirable to lower the overall emissions of a coating by simply reducing or completely removing the coalescents present in the formulation as this will have a negative effect on the application, performance and quality of the paint. Note de contenu : - EVALUATION OF OPTIFILM ENHANCER 400 : Emissions - Odour - Performance - TABLES : 1. Odour rating of low-emission coalescents in matt paints after 24 hours - 2. Performance of a matt paint formulated with Optifilm enhancer 400 against coalescent-free matt paints - 3. Performance of a silk paint formulated with Optifilm enhancer 400 against coalescent-free silk paints - FIGURES : 1. Emissions of Optifilm enhancer 400 in a matt and a silk paint at 23°C - 2. Coalescent loss over a six-month period in silk paints - 3. Coalescent loss over a six-month period in matt paint - 4. Low-temperature scrub resistance of matt paint En ligne : https://drive.google.com/file/d/1JE7EFJiclzKQhbluA8Wt0EicaQrKX3uG/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=26190 [article]

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