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Studies on the extraction, modification and applications of CNSL/cardanol based epoxy resin / Ranjana Yadav in PAINTINDIA, Vol. LIX, N° 3 (03/2009)
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Titre : Studies on the extraction, modification and applications of CNSL/cardanol based epoxy resin Type de document : texte imprimé Auteurs : Ranjana Yadav, Auteur ; Deepak Srivastava, Auteur Année de publication : 2009 Article en page(s) : p. 69-104 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Cardanol
EpoxydesTags : 'Cashew nut shell liquid' (CNSL) Extraction Modification Application 'Résine époxyde' Index. décimale : 667.9 Revêtements et enduits Résumé : The use of fossil carbon-based monomers in the manufacture of polymers is going down because of their spiraling prices and high rate of depletion of the stocks. This necesitated a look at the renewable natural resources that can serve as alternative feddstock of monomers for the polymer industry. In this respect, cashew nut shell liquid (CNSL), an abundant agricultural byproduct, holds considerable promise as a source of unsaturated phenol, an excellent monomer for polymer production. Cardanol, a major constituent of CNSL, can be used for the preparation of cardanol-based novolac/resoleresins. The cardanol-based novolac resins can further be epoxidezed with epichlorohydrin resulting in epoxidized novolac resins. therefore, in the first part of the paper, extraction of cardanol from CNSL, development of novolac resins and epoxidized novolac resin sfrom cardanol or modified products from CNSL or cardanol and various application sectors which utilize modified cardanol-based products is reviewed. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=6887
in PAINTINDIA > Vol. LIX, N° 3 (03/2009) . - p. 69-104[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 011333 - Périodique Bibliothèque principale Documentaires Disponible Preparation and characterization of cardanol based novolacs for use in surface coatings / Raju in PAINTINDIA, Vol. LVII, N° 9 (09/2007)
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Titre : Preparation and characterization of cardanol based novolacs for use in surface coatings Type de document : texte imprimé Auteurs : Raju, Auteur ; Ganesh Datt Bajpai, Auteur ; Pramod Kumar, Auteur Année de publication : 2007 Article en page(s) : p. 107-119 Note générale : Bibliogr. Langues : Anglais (eng) Tags : Novolacs Cardanol Characterisation 'Cashew nut shell liquid (CNSL)' Index. décimale : 667.9 Revêtements et enduits Résumé : The novolac resins were prepared by reacting cardanol with formaldehyde. The molar ratios taken with respect to cardanol to formaldehyde were 1:0.6, 1:0.7, 1:0.8 and 1:0.9. These resins were characterized by I.R. spectroscopy for determining respective functional groups in the resin structure, and Gel Permeation Chromatography (GPC) was used to determine the molecular weights of the prepared novolac resins. These resins were found to possess ortho-ortho and ortho-para linkages. The curing characteristics of the resins showed that the resin prepared with molar ratio 1:0.8 has good curing characteristics. Note de contenu : - Experimental : Materials - Analysis of cardanol - Synthesis of cardanol-formaldehyde novolac resins - Coating of panels - Evaluation of physical properties of films - Evaluation of cheminical resistance properties of films
- Results and discussion : Analysis of cardanol - Molecular weight determination of cardanol-formaldehyde resins - I.R. spectral analysis of cardanol-formaldehyde resins - Evaluation of coating films for their curing characteristics - Characterization of cured films of (CNs) for film propertiesPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11507
in PAINTINDIA > Vol. LVII, N° 9 (09/2007) . - p. 107-119[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 010024 - Périodique Bibliothèque principale Documentaires Disponible