| Titre : |
Welcome Addition : The effectiveness of polyaziridene used in high-perfomance waterborne urethane adhesives |
| Type de document : |
texte imprimé |
| Auteurs : |
Anthony D. Pajerski, Auteur |
| Année de publication : |
2001 |
| Article en page(s) : |
p. 43-49 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Adhésifs en phase aqueuse
Adhésion
Analyse mécanique dynamique
Chlorure de polyvinyle
Durée de vie en pot
Matières plastiques -- Collage
Matières premières
Polyéthylèneimine
Polyuréthanes
Résistance à l'humidité
Résistance au fluage
Réticulation (polymérisation)
|
| Index. décimale : |
668.3 Adhésifs et produits semblables |
| Résumé : |
Some useful benefits of formulating higher performing urethane adhesives by addition of polyaziridine have been demonstrated. The data presented shows polyaziridines can be a cost-effective crosslinker for improving the adhesive performance of water urethanes. As little as 0.08 eqs. or 0.5 percent versus solids were found to have a significant if not optimal effect on resistance properties. Another advantage of polyaziridine-based formulations is the extended pot life one can apparently obtain that can provide further application flexibility. The addition of polyaziridines has also been demon-strated to provide improved adhesion on certain substrates, particularly SMA. Of course, when one is formulating adhesives for a particular application, optimal combinations of cross-linker, polymer and other addi¬tives will need to be determined as they may be expected to be interdependent.
As previously mentioned, further investi-gations are underway to elucidate whether unexpected low levels of polyaziridine addi
tion to waterborne urethanes are typically/universally required for optimal performance in adhesive applications. The actual expected limit to the pot life will be determined and factors that might influence it. |
| Note de contenu : |
- EXPERIMENTAL : Polyaziridene crosslinking adhesive formulations - DMA - Cotton to cotton bonding - Dry bonding - PVC to plastic bonding - Hot creep resistance - Water resistance - Pot life - Raw materials and substrates
- RESULTS AND DISCUSSION : Determination of optimal aziridine equivalents
- EFFECT OF BONDING METHOD : Effect of pH - Effect of neutralizing agent - Adhesion - Pot life |
| En ligne : |
https://drive.google.com/file/d/1yi2hxGeSXdrqXtz3xC4UMYaoK9Pwx4Yc/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=19939 |
in ADHESIVES AGE > Vol. 44, N° 6 (06/2001) . - p. 43-49
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Welcome Addition in ADHESIVES AGE, Vol. 44, N° 6 (06/2001)
