| Titre : |
Crosslinking waterborne coatings with bipodal silanes for improved corrosion protection performance |
| Type de document : |
texte imprimé |
| Auteurs : |
Jacob D. Shevrin, Auteur ; Sheba D. Bergman, Auteur |
| Année de publication : |
2019 |
| Article en page(s) : |
p. 31-36 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Anticorrosifs
Anticorrosion
Essais accélérés (technologie)
Formulation (Génie chimique)
Métaux -- Revêtements protecteurs
Réticulation (polymérisation)
Revêtements en phase aqueuse -- Additifs
Silanes organofonctionnels
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
The authors discusses waterborne silane technology and its impact on corrosion resistance properties in a coating.
As waterborne silane technology continues to gain interest as an environmentally friendly alternative to well-established corrosion protection technology, investigations into performance-enhancing additives are crucial for supporting this market growth.
If can be concluded that organofunctional bipodal silanes are viable performance-enhancing additives in waterborne corrosion protection systems due to the increase in hydrophobicity, crosslinking density and surface passivation that these materials can provide. ln particular, the waterborne organofunctional silanol system with colloidal silica and organofunctional bipodal silane additives exhibited the best corrosion resistance in neutral salt spray testing, the best alkaline resistance in alkaline testing, and the highest impedance during EIS testing. However, it is important to note that adding in an organofunctional bipodal silane into a room temperature cured waterborne organofunctional silanol coating did not outperform a thermally cured waterborne organofunctional silanol coating without organofunctional bipodal silane additives.
The authors discusses waterborne silane technology and its impact on corrosion resistance properties in a coating.
While contact angle measurements, salt spray testing, alkaline resistance testing and EIS data support this claim of increased corrosion resistance with the use of organofunctional bipodal silane additives, further research is necessary to understand the complete scope of waterborne silane technology and its interactions with organofunctional bipodal silanes.
Additional experimentation, including outdoor weatherability testing in real life conditions, is underway to better understand this technology in the hope of further improving the performance, affordability and reliability of waterborne silane coatings for corrosion resistance applications. |
| Note de contenu : |
- EXPERIMENTAL METHODS : Materials - Formulation preparation - Cleaning and application procedures - Testing procedures
- RESULTS AND DISCUSSION : Surface contact angle analysis - Neutral salt spray testing - Alkaline resistance testing - Electrochemical impedance spectroscopy.
- Table : Ingredients for waterborne coatings WB1-WB5 (weight in grams) |
| En ligne : |
https://drive.google.com/file/d/1T8G1vYU9OkeErtzSNwIsLN49qBs9CldH/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32919 |
in POLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 209, N° 4654 (09/2019) . - p. 31-36
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Crosslinking waterborne coatings with bipodal silanes for improved corrosion protection performance in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 209, N° 4654 (09/2019)
