| Titre : |
A natural choice : Cashew nutshell liquid-based epoxy curing agents and polyols offer outstanding performances and benefits for adhesives and sealants |
| Type de document : |
texte imprimé |
| Auteurs : |
Yun mi Kim, Auteur ; James Zhao, Auteur ; William Wei, Auteur |
| Année de publication : |
2017 |
| Article en page(s) : |
p. 21-25 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Anticorrosion
Cardanol
Colles:Adhésifs
Diols
Epoxydes
Joints d'étanchéité
Noix de cajou et constituants
Phénalkamides
Phénalkamines
Polyols
Résistance à l'humidité:Résistance à l'eau
Résistance chimique
Ressources renouvelables
Réticulants
|
| Index. décimale : |
668.3 Adhésifs et produits semblables |
| Résumé : |
Cashew nutshell liquid (CNSL), a bio-renewable resource found in the honeycomb structure of the cashew nutshell, is considered a byproduct of the cashew industry. Therefore, CNSL is a non-food chain product that would otherwise be disposed of. Cashew trees can grow abundantly in tropical conditions.
One of the most commercially useful chemicals from CNSL is cardanol, a pentadecadienyl phenol with an aliphatic side chain that usually consists of a mixture of one, two, and three double bonds in a linear chain. This natural phenolic compound has interesting chemical structural features that enable a variety of chemical modifications to create bio-based monomers and polymers. Phenalkamine is one of most successful chemicals used in cashew nutshell liquid, along with phenalkamide, exhibiting good reactivity for fast and low-temperature cure and strong adhesion even to damp or poorly prepared surfaces. In addition, its long aliphatic side chain delivers excellent water resistance, corrosion protection and chemical resistance. |
| Note de contenu : |
- Phenalkamines
- Phenalkamides
- CNSL polyols
- CNSL diols
- TABLES : 1. Tested curing agents, phenalkamines, phenalkamides, and reference curing agent - 2. Tested polyols and diols - 3. Mechanical properties of phenalkamines and the reference - 4. Performance comparison of phenalkamides - 5. Physical properties of polyols cured with polymeric MDI (P-MDI) - 6. Compatibility oc CNSL diols compared to PolyBD |
| En ligne : |
http://www.adhesivesmag.com/articles/95456-a-natural-choice-for-adhesives-and-se [...] |
| Format de la ressource électronique : |
Web |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28640 |
in ADHESIVES & SEALANTS INDUSTRY (ASI) > Vol. 24, N° 5 (05/2017) . - p. 21-25
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