Alkyd-ketonic blends for coatings applications / Vilas D. Athawale in PAINTINDIA, Vol. L, N° 9 (09/2000)

[article]  inPAINTINDIA > Vol. L, N° 9 (09/2000) . - p. 39-44 Titre : Alkyd-ketonic blends for coatings applications Type de document : texte imprimé Auteurs : Vilas D. Athawale, Auteur ; A. V. Chamankar, Auteur ; Manoj Athawale, Auteur Année de publication : 2000 Article en page(s) : p. 39-44 Note générale : Bibliogr. Langues : Anglais (eng) Tags : 'Matériau  revêtement'  Peinture  Liant  'Alkyde  résine'  'Cétone  copolymère'  Mélange  'Propriété  physique'  mécanique'  chimique'  Feuil Index. décimale : 667.9 Revêtements et enduits Résumé : This article discusses property relationships of raw materials used for manufacturing of alkyd resins and its coatings study with cyclohexanone formaldehyde (ketonic) resin blends. Properties such as drying time, hardness, adhesion, flexibility, gloss, skinning tendency, impact resistance and chemical resistance of the blends were studied. Ketonic resin was blended with alkyd resin, and a significant improvement in adhesion, hardness, gloss , storage stability, acid resistance and drying time was achieved over that of the alkyd resin . Note de contenu : - Chemical - Preparation of alkyd resins - Analysis of the blends : Scanning Electron Microscopy (SEM) – Infrared (IR) spectroscopy – Miscibility – Method of application of resins on to the panels - Test contemplated for study of the blend properties : - Drying time – Pencil hardness – Gloss – Adhesion – Flexibility – Storage stability - Chemical resistance : Acid immersion test - Evidences for compatibility of the blends : - Scanning electron microscopy – Infrared spectroscopy - Miscibility - Studies on coating properties of blends : - Drying time - Hardness - Gloss - Adhesion and flexibility - Storage stability - Chemical resistance : Water immersion test – Acid immersion test Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12766 [article]

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Aqueous PUDs / Vilas D. Athawale in EUROPEAN COATINGS JOURNAL (ECJ), N° 10/02 (10/2002)  

[article]  inEUROPEAN COATINGS JOURNAL (ECJ) > N° 10/02 (10/2002) . - p. 30-37 Titre : Aqueous PUDs : Effect of isocyanate type on coating properties Type de document : texte imprimé Auteurs : Vilas D. Athawale, Auteur ; Sunil N. Peshane, Auteur Année de publication : 2002 Article en page(s) : p. 30-37 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.9 Revêtements et enduits Résumé : Considering the growing awareness of the volatile organic compound (VOC) regulations and imperative development of waterborne surface coatings, a series of low VOC hydrophilically modified anionic aqueous polyurethane dispersions (PUDs) were prepared. The effect of aliphatic, cycloaliphatic and aromatic isocyanates (hard domains) on the coating properties of waterborne PUDs was studied extensively with regard to mechanical and performance properties. As the aromatic structure in polymer matrix increased the tensile strength increased remarkably where as elongation % decreased but the trend in this case was not so very distinct. The reactivity of isocyanate showed significant impact on bulk mechanical properties rather than surface mechanical properties. En ligne : https://drive.google.com/file/d/1nDoK8J7b3WPpEeaaCe29MZ9Jzyu2lPsH/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=10708 [article]

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Blends of CNSL phenol-formaldehyde-ketonic resin : a cost effective endeavour to enhance performance of conventional CNSL coatings / Vilas D. Athawale in PAINTINDIA, Vol. LVIII, N° 12 (12/2008)

[article]  inPAINTINDIA > Vol. LVIII, N° 12 (12/2008) . - p. 69-78 Titre : Blends of CNSL phenol-formaldehyde-ketonic resin : a cost effective endeavour to enhance performance of conventional CNSL coatings Type de document : texte imprimé Auteurs : Vilas D. Athawale, Auteur ; Narendra J. Shetty, Auteur Année de publication : 2008 Article en page(s) : p. 69-78 Note générale : Bibliogr. Langues : Anglais (eng) Tags : Blend  CNSL  Coating  properties  Ketonic  (Cyclohexanone  formaldehyde)  resin Index. décimale : 667.9 Revêtements et enduits Résumé : Cashew nut shell liquid (CNSL) and phenol formaldehyde were synthesised in the laboratory and subsequently blended with ketonic (cyclohexanone formaldehyde) resin. The physico-mechanical and performance properties such as drying time, hardness, adhesion, flexibility, gloss, skinning tendency, corrosion, impact resistance and chemical resistance were examined at various compositions of the modified CNSL resin and ketonic resin blend. The 50:50 percent (w/w) of CNSL-phenol-formaldehyde - ketonic (cyclohexanone formaldehyde) resin blend exhibited enhanced coating properties as compared to any other proportions of the blend. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=6935 [article]

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Blends of CNSL phenol-formaldehyde-ketonic resin : a cost-effective endeavour to enhance performance of conventional CNSL coatings / Vilas D. Athawale in PAINTINDIA, Vol. LVIII, N° 7 (07/2008)

[article]  inPAINTINDIA > Vol. LVIII, N° 7 (07/2008) . - p. 100 Titre : Blends of CNSL phenol-formaldehyde-ketonic resin : a cost-effective endeavour to enhance performance of conventional CNSL coatings Type de document : texte imprimé Auteurs : Vilas D. Athawale, Auteur ; Narendra J. Shetty, Auteur Année de publication : 2008 Article en page(s) : p. 100 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Baume de cajou Cyclohexanone Formaldéhyde Polycyclohexanones Revêtements Index. décimale : 667.9 Revêtements et enduits Résumé : Cashew nut shell liquid (CNSL) and Phenol formaldehyde were synthesised in the laboratory and subsequently blended with ketonic (Cyclohexanone formaldehyde) resin. The physico-mechanical and performance properties such as drying time, hardness, adhesion, flexibility, gloss, skinning tendency, corrosion, impact resistance and chemical resistance were examined at various compositions of the modified CNSL resin and ketonic resin blend. The 50:50 percent (w/w) of CNSL-phenol-formaldehyde- Ketonic (Cyclohexanone formaldehyde) resin blend exhibited enhanced coating properties as compared to any other proportions of the blend. Note de contenu : - Morphological study of blends - Driers - Tests carried out for the study of coating properties Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12105 [article]

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Chemoenzymatic synthesis and characterization of urethane oils for surface coatings / Vilas D. Athawale in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 70, N° 879 (04/1998)

[article]  inJOURNAL OF COATINGS TECHNOLOGY (JCT) > Vol. 70, N° 879 (04/1998) . - p. 43-48 Titre : Chemoenzymatic synthesis and characterization of urethane oils for surface coatings Type de document : texte imprimé Auteurs : Vilas D. Athawale, Auteur ; M. D. Bhabhe, Auteur Année de publication : 1998 Article en page(s) : p. 43-48 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 667.9 Revêtements et enduits Résumé : Two-step chemoenzymatic synthesis of urethane oils has been studied. Initially, the partial esters were prepared by lipase-catalyzed transesterification of soybean and linseed oils with n-butanol. Partial esters were further reacted with different diisocyanates to obtain urethane oils. The composition of the partial esters was varied with reaction time in the transesterification step. Among all the lipases, the lipozyme was found to be the most suitable lipase for the transesterification reaction, yielding 80-85%. All of the urethane oils were of low molecular weights irrespective of the type of oil used in their preparation. Urethane oils, based on MDI, exhibited the best scratch resistance. All of the urethane oils showed good acid and alkali resistance and excellent solvent resistance. These oils also satisfactorily passed the impact resistance and the flexibility tests. Note de contenu : - EXPERIMENTAL : Chemicals and lipases - Two-step chemoenzymatic synthesis of urethane oils - Characterization of urethane oils - IR spectroscopy - 1H-NMR spectroscopy - Determination of film properties - RESULTS AND DISCUSSION : Kinetics of lipase catalyzed transesterification of soybean and linseed oil - Effect of type of lipase - Effect of temperature - Effect of substrate to nucleophile radio - IR spectroscopy - 1H-NMR spectroscopy - Characterization and film properties of urethane oils Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=17992 [article]

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Chemoenzymatic synthesis of PURs / Vilas D. Athawale in EUROPEAN COATINGS JOURNAL (ECJ), N° 6/00 (06/2000)

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A comparative study on coating properties of chemoenzymatically synthesised and conventional alkyd resins / Vilas D. Athawale in PAINTINDIA, Vol. LI, N° 3 (03/2001)

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Effect of HMMM crosslinking on polyurethane dispersion based on Karanja oil / Vilas D. Athawale in PAINTINDIA, Vol. LX, N° 9 (09/2010)

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High performance coatings from liquid crystalline acrylic copolymers / Vilas D. Athawale in PAINTINDIA, Vol. XLIX, N° 10 (10/1999)

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Liquid crystalline polymers and their coating properties / Vilas D. Athawale in EUROPEAN COATINGS JOURNAL (ECJ), N° 1-2/00 (01-02/2000)

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Liquid crystalline polymers : a review / Vilas D. Athawale in EUROPEAN COATINGS JOURNAL (ECJ), N° 6/01 (06/2001)  

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Low cost multipurpose coatings from alkyd-ketonic blends / Vilas D. Athawale in PAINTINDIA, N° spécial (01/2003)

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Moisture cured coatings based on chemoenzymatically modified linseed oil / Vilas D. Athawale in PAINTINDIA, Vol. LV, N° 10 (10/2005)

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Network strategies / Sunil N. Peshane in EUROPEAN COATINGS JOURNAL (ECJ), N° 6/2006 (06/2006)  

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New technology trends in blends of alkyd-ketonic coatings resin system / Vilas D. Athawale in PAINTINDIA, Vol. XLIX, N° 3 (03/1999)

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Oil-modified PUDs : cross-linkable, voc compliant, cost effective / Sunil N. Peshane in EUROPEAN COATINGS JOURNAL (ECJ), N° 3/03 (03/2003)  

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Polymeric blends from renewable resources - A review (Cashew nut shell liquid) / Vilas D. Athawale in PAINTINDIA, Vol. LIX, N° 2 (02/2009)

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PURs based on hydrogenated castor oil / Vilas D. Athawale in EUROPEAN COATINGS JOURNAL (ECJ), N° 1-2/01 (01-02/2001)  

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A review on recent developments in polyurethane/acrylate hybrid dispersions / Vilas D. Athawale in PAINTINDIA, Vol. LIX, N° 10 (10/2009)

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Studies on coating properties of liquid crystalline acrylic copolymers / Vilas D. Athawale in PAINTINDIA, Vol. L, N° 1 (01/2000)

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