| Titre : |
Opaque extenders as a partial replacement to TiO2 |
| Type de document : |
texte imprimé |
| Auteurs : |
Monika Deshmukh, Auteur ; Vishwanath Patil, Auteur |
| Année de publication : |
2017 |
| Article en page(s) : |
p. 72-81 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Argile
Carbonate de calcium précipité
Chlorure de polyvinyle
Dioxyde de titane -- Suppression ou remplacement
Pigments inorganiques
Polyalkydes
Revêtements en phase aqueuse -- Additifs:Peinture en phase aqueuse -- Additifs
Silicate d'aluminium
Silicate de calcium
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
The growing demand and increasing Cost:of TiO2 has driven the attention of paint technologists to search for other alternatives.Titanium dioxide pigments provide both opacity and whiteness to paint films and influence a wide range of
Other film. The introduction and development of TIO, throughoutthe 20th century enabled the production of
high-quality and safe paints for both interior and exterior use. However, the manufacturing processes of TiO2 are relatively expensive, and so this pigment is often the most expensive raw material used in emulsion paints. Many techniques andadditives has been developed over the years to help improve the utilization of TiO2 and thus recduce the amount used, while rnairitaining paint performance properties. There has been contintious effort to replace part of the TiO2 with fine particle site extenders in paint formulations. A detailed study has been undertaken to replace pigment by various percentages of calcined clays ; kaolin, PCC (precipitated calcium carbonate), Calcium aluminium silicate in to latex paint formulations. Properties such as thixotropie hiding power, light fastness, film brightness, scrub resistance, and weather resistance have been deterrnined to establish the optimum use of these extenders in the paint formulation. |
| Note de contenu : |
- INTRODUCTION : Sulfate process - Chloride process
- THE NEED FOR TITANIUM DIOXIDE (TiO2) replacement : Market growth - External influences - Lifetime quality - Price - Possible reactions - Resource availability - Looking ahead
- ALTERNATIVES
- SUPER MICROVOID CALCINED CLAY (SMCC) : Properties of super microvoid calcined clay - Effect on opacity - Properties on the critical PVC - Example 1 : saving titanium dioxide in an alky dundercoat - Example 2 : saving titanium dioxide in matt interior emulsion paint
- CALCIUM ALUMINIUM SILICATE AS A PARTIAL REPLACEMENT TO TIO2 : Properties of CAS - Example
- RESULTS : Optical properties - Opacity - Class - Whiteness index - Other properties
- KAOLIN
- REPLACEMENT OF TIO2 WITH PCC (PRECIPITATED CALCIUM CARBONATE) : Properties of PCC - Example
- RESULTS : Opacity - Scrub resistance - Other properties
- NOVEL SILICA-BASED NANO PIGMENTS
- RESULTS : Gloss - Brightness - Opacity |
| En ligne : |
https://drive.google.com/file/d/1jkxCaj3qmMp22eJFXR5uNcP7uo-hY3Pz/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28973 |
in PAINTINDIA > Vol. LXVII, N° 7 (07/2017) . - p. 72-81
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