3 résultat(s) recherche sur le tag 'Cardanol'

Blends of cardanol-based epoxidized novolac resin and CTBN for application in surface coating : a study on thermal, mechanical, chemical, and morphological characteristics / Ranjana Yadav in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 7, N° 5 (09/2010)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 7, N° 5 (09/2010) . - p. 557-568 Titre : Blends of cardanol-based epoxidized novolac resin and CTBN for application in surface coating : a study on thermal, mechanical, chemical, and morphological characteristics Type de document : texte imprimé Auteurs : Ranjana Yadav, Auteur ; Deepak Srivastava, Auteur Année de publication : 2010 Article en page(s) : p. 557-568 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Revêtements Tags : Cardanol  'Résine  novolac'  'Carboxyl-terminated  butadiene  acrylonitrile'  (CTBN)  'Analyse  calorimétrique  différentielle'  (DSC)  thermogravimétrique'  (TGA) Index. décimale : 667.9 Revêtements et enduits Résumé : Blend samples of cardanol-based epoxidized novolac resin and different weight percentages of carboxyl-terminated butadiene acrylonitrile (CTBN) were developed and cured with stoichiometric amounts of aliphatic amine. The formation of various products during the curing of blend samples has been studied by Fourier-transform infrared spectroscopy. The dynamic differential scanning calorimeter scans showed that the pure epoxies and their blend samples with CTBN cured in the temperature range of 100–150°C. The blend sample containing 15 wt% CTBN showed the least cure time (at 120°C) among all other blend samples. Upon evaluation, it was found that blend samples exhibit better properties compared to pure epoxy resin in terms of increase in impact strength and elongation-at-break of the casting and gloss, scratch hardness, adhesion, and flexibility of the film. The improvement in these properties indicates that the rubber modified resin would be more durable than the epoxy based on cardanol. Chemical and morphological properties of the formulated resins were also determined. The thermal stability of the blend samples containing 15 wt% CTBN in epoxy resin was the highest among all other prepared systems. The blend morphology, studied by scanning electron microscope, showed the presence of precipitated discrete rubber particles, which dispersed throughout the epoxy matrix—i.e., they revealed the presence of two-phase morphological features. DOI : 10.1007/s11998-009-9235-8 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-009-9235-8.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9911 [article]

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Preparation and characterization of cardanol based novolacs for use in surface coatings / Raju in PAINTINDIA, Vol. LVII, N° 9 (09/2007)

[article]  inPAINTINDIA > Vol. LVII, N° 9 (09/2007) . - p. 107-119 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 properties Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11507 [article]

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Innovative bio-based composites for automotive applications / Pietro Campaner in JEC COMPOSITES MAGAZINE, N° 56 (04/2010)  

[article]  inJEC COMPOSITES MAGAZINE > N° 56 (04/2010) . - p. 49-50 Titre : Innovative bio-based composites for automotive applications Type de document : texte imprimé Auteurs : Pietro Campaner, Auteur ; Daniele d'Amico, Auteur ; Luigia Longo, Auteur Année de publication : 2010 Article en page(s) : p. 49-50 Langues : Anglais (eng) Tags : Cardanol  Phénoplaste  'Fibre  naturelle'  végétale'  'Matériau  composite'  'Propriété  mécanique'  'Tissu  textile'  Stratifié  'Etude  expérimentale'  'Déchet  agricole'  Phénols  Durcissant  Novolaque  Epoxy  renforcé  fibre'  Jute Index. décimale : 668.4 Plastiques, vinyles Résumé : Cimteclab S.p.A. has developed innovative bio-based composites using jute fibres as reinforcement and a cardanol-based thermosetting resin as the matrix. The use of a matrix derived from a natural resource increases the renewable portion of natural-fibre-reinforced composite materials. Note de contenu : - Cardanol-based epoxy curing agents - Innovative bio-based composites En ligne : http://www.jeccomposites.com/news/composites-news/innovative-bio-based-composite [...] Format de la ressource électronique : Web Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=14247 [article]

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