[article]
| Titre : |
CNSL-derived polymers for use in surface coatings |
| Type de document : |
texte imprimé |
| Auteurs : |
K. S. Shukla, Auteur ; S. Prasad, Auteur ; Pramod Kumar, Auteur ; Deepak Srivastava, Auteur |
| Année de publication : |
2002 |
| Article en page(s) : |
p. 29-32 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Cashew Nut Shell Liquid (CNSL), a by-product of the cashew industry, is one of the potential natural sources of phenols/monomers for the synthesis of a variety resins/polymers for use in surface coatings. CNSL, a dark-coloured product, is obtained from the shell of cashew nut. Cashew tree, Anacardium Accidentale Linn, of Brazil origin, is now being grown extensively in India also. In the present paper, extraction and refining of CNSL has been briefly outlined to get a technically useful product. The chemistry of CNSL and its components has been discussed along with the polymerization of CNSL. Possible modifications of CNSL have been considered to yield useful film-formers for surface coatings of improved technical utility. CNSL-aldehyde resins have been found to be superior to ordinary phenol-aldehyde resins when used in surface coatings, and as insulating materials. The important polymeric materials which have been developed by using CNSL as one of the constituents or a modifier, such as CNSL-aldehyde condensation products, CNSL-modified phenolic resins, polyesters, epoxies and polyurethanes, have been elaborated. Both solvent-borne and waterborne coating formulations have been discussed. Water-dispersible and water-soluble resins with their preparation and properties have been covered in this paper with the purpose to draw guidelines for the designing of ecofriendly polymeric film-formers for surface coatings. |
| Note de contenu : |
- Extraction of CNSL
- Refining
- Chemistry of CNSL and its components
- Polymerization of CNSL
- CNSL-aldehyde condensation products
- Epoxy resins
- Miscellaneous coating materials
- Water-borne coatings |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12302 |
in PAINTINDIA > Vol. LII, N° 2 (02/2002) . - p. 29-32
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CNSL-derived polymers for use in surface coatings in PAINTINDIA, Vol. LII, N° 2 (02/2002)
