| Titre : |
A cure for PSAs : Radiation curable elastomers help hot-melt producers bolster performance of presure sensitive adhesives |
| Type de document : |
texte imprimé |
| Année de publication : |
2003 |
| Article en page(s) : |
p. 22-25 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Adhésifs -- Séchage sous rayonnement électronique
Adhésifs -- Séchage sous rayonnement ultraviolet
Adhésifs sensibles à la pression
Adhésifs thermofusibles
Adhésion
Caoutchouc styrène-butadiène
Elastomères
Résistance thermique
|
| Index. décimale : |
668.3 Adhésifs et produits semblables |
| Résumé : |
Radiation curable elastomers offer new opportunities for hot-melt producers to extend their product grade range towards the high performance pressure sensitive adhesives. Kraton D-KX222C is a radiation curable styrenic block copolymer designed to be highly reactive even in the presence of air. Although it quickly crosslinks when submitted to the UV light, it can be safely processed in hot melt when the appropriate antioxidant package is used. It is known that UV irradiation has to be carefully controlled to ensure the production of optimal and consistent adhesives. However, adhesives based on the radiation curable elastomer offer robust systems less prone to adhesion change upon curing than other competitive materials.
The polymer 222 is the polymer of choice for high performing industrial tapes. It can be processed similar to any conventional hot melt without contaminating the hot-melt line and it obeys the same formulation principles as other styrenic block copolymers. It therefore combines the desirable adhesion char-acteristics of rubber-based adhesives such as adhesion on a wide variety of substrates and can be formulated into an extensive range of products with very different properties. Tt is possible to obtain peel adhesion values of 27 N/25mm or a RBT below 5cm, with a SAFT above 160 degrees C. This makes the polymer particularly attractive for the automotive industry, which often requires adhesives with high tack and temperature resistance around 140 degrees C. |
| Note de contenu : |
- Table 1 : Thermal stability of radiation curable SBC
- Table 2 : Adhesive properties of the SBC-based PSA with high temperature resistance
- Table 3 : Adhesive properties of the polymer 222 and competitive material
- Table 4 : Adhesion levels on different substrates |
| En ligne : |
https://drive.google.com/file/d/1-lmviANWt4nDRDIE-gcyQvJJu-0piMyD/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8705 |
in ADHESIVES AGE > Vol. 46, N° 4 (06-07/2003) . - p. 22-25
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A cure for PSAs in ADHESIVES AGE, Vol. 46, N° 4 (06-07/2003)
