[article]
| Titre : |
Boosting the performance of SMP sealants with Clariant sustainable stabiliser solutions |
| Type de document : |
texte imprimé |
| Auteurs : |
Jean-Yves Desrats, Auteur ; Andrea Battisti, Auteur |
| Année de publication : |
2020 |
| Article en page(s) : |
p. 28-30 |
| Langues : |
Anglais (eng) |
| Catégories : |
Colorimétrie
Formulation (Génie chimique)
Mastics
Mastics -- Additifs
Photostabilité
Plan d'expérience
Polymères à silane modifié
Résistance thermique
|
| Index. décimale : |
668.3 Adhésifs et produits semblables |
| Résumé : |
SMP (silyl-modified-polymer) Sealants, also called Hybrid Polymer Sealants, are the fastest growing technology for building and construction. They offer a wide range of physical properties versus other chemistries, eg silicones and polyurethanes, and feature increased elongation at break, improved adhesion on many substrates, re-paintability, better flexibility and higher durability.
Currently, the light and heat stabilisation solutions that are available on the market, designed to prolong the service life of SMP sealants, have some disadvantages for SMP sealant formulators. First, for those based on benzotriazole chemistry for the UV absorber component, they tend to yellow on extrusion. Second, they show early surface cracking and polymer break down. Finally, in most cases, the light stabilisers are labelled due to their hazardous composition.
The target for improvement was to address these three critical pillars, without compromising the technical advantages of SMP sealants regarding their mechanical properties. |
| Note de contenu : |
- Heat stability
- Light stability
- Colour measurements
- Table 1 : DOE/Experimental plan with Mariant combinations versus competitive solutions. (International Patent application PCT/EP2020/0695111
- Table 2 : Composition of the High Modulus 1K-SMP sealant guide formulation
- Table 3 : DOE/Experimental plan with results for heat stability, light stability/surface cracking, colour values IYI and AE)-(International Patent application PCT/EP2020/0695111
- Table 4 : Yellowness Index (YI) and surface cracking resistance |
| En ligne : |
https://drive.google.com/file/d/1TYmq4yq0cBU-uVv_Fe2mCPQiWDygFCY2/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36743 |
in POLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 210, N° 4666 (12/2020) . - p. 28-30
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