| Titre : |
Silica encapsulated tannic acid containing pH triggered smart coating |
| Type de document : |
texte imprimé |
| Auteurs : |
Debabrata Pal, Auteur ; Pradipta Sankar Maiti, Auteur ; Kumaresh Nandy, Auteur ; Saumyadip Ghosh, Auteur |
| Année de publication : |
2019 |
| Article en page(s) : |
p. 55-64 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Anticorrosifs
Anticorrosion
Encapsulation
Essais de brouillard salin
Matériaux intelligents
Métaux -- Revêtements protecteurs
pH
Primaire (revêtement)
Revêtements bi-composant
Tanins
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
The annual cost of corrosion globally exceeds 1.8 trillion US dollars, which translates into 3-4 % of the GDP of industrialised nations worldwide. Over the past decade there has been significant progress in the development of smart coatings. Smart coatings require triggers to respond to the environment. Such triggers can be moisture, pH, chloride ions concentration, mechanical damage, and temperature and redox activity. In the current work we report synthesis of silica encapsulated tannic acid based smart coatings and its rust preventive performance derived out of the same. Epoxy primer grey paint and epoxy novolac based tank liner paints prepared using silica encapsulated tannic acid (MNSTA) were applied over manually cleaned surface. Its triggering mechanism was analysed by exposing them to different acidic pH and subsequently exposed to salt spray testing. The same has been compared with normal salt spray behaviour. Pull off adhesion, cathodic disbondment were performed in addition to understand its overall anti-corrosive behaviour. |
| Note de contenu : |
- EXPERIMENTAL METHODOLOGY : Reagents - Preparation of silica encapsulated tannic acid
- PAINT PREPARATION : A) Two pack zinc phosphate primer - B) Epoxy novolac based tank liner system
- TEST MEDHODS USED : pH triggering procedure - Pull off adhesion - Cathodic disbondment resistance
- RESULTS AND DISCUSSION : Rust prevention property against different pH - Salt spray results - Pull off adhesion results - Cathodic disbondment results |
| En ligne : |
https://drive.google.com/file/d/1kzE0s4IuKsFTNIBY5xTHWKisf8k5vGiH/view?usp=share [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32803 |
in PAINTINDIA > Vol. LXIX, N° 6 (06/2019) . - p. 55-64
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