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Synthesis and properties of castor oil-based waterborne polyurethane cloisite 30B nanocomposite coatings / Siva Sankar Pandar in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 14, N° 2 (03/2017)
[article]
Titre : Synthesis and properties of castor oil-based waterborne polyurethane cloisite 30B nanocomposite coatings Type de document : texte imprimé Auteurs : Siva Sankar Pandar, Auteur ; Bishnu Prasad Panda, Auteur ; Smita Mohanty, Auteur ; Sanjay K. Nayak, Auteur Année de publication : 2017 Article en page(s) : p. 377-394 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Cloisite
Huile de ricin et constituants
Morphologie (matériaux)
Polymères en émulsion
Polyuréthanes
Revêtements -- Analyse:Peinture -- Analyse
Revêtements -- Propriétés thermiques:Peinture -- Propriétés thermiques
Revêtements en phase aqueuse:Peinture en phase aqueuseIndex. décimale : 667.9 Revêtements et enduits Résumé : Waterborne polyurethane dispersions (WPUDs) were synthesized successfully from castor oil-based polyol, isophorone diisocyanate and dimethylol propionic acid with NCO/OH ratio of 1.5. Different weight percentages of cloisite 30B (1, 2, and 3 wt%) were loaded with WPUDs to prepare nanocomposite films. Prepared prepolymer and nanocomposite films were characterized using FTIR, XRD, SEM, TEM, DSC, and TGA techniques, and coating properties, such as pencil hardness, abrasion resistance, impact resistance, and contact angle, were evaluated. The results obtained from different amounts of clay loading were compared with the pristine castor oil-based WPUDs. The FTIR spectra deconvolution technique was used to study the hydrogen bonding effect within the polymer with an increase in clay content. TGA analysis showed that the thermal stability of WPUDs increases with cloisite 30B (C30B) content. The surface morphology and hydrophilicity/hydrophobicity nature of the nanocomposite films were characterized using scanning electron microscopy and contact angle measurement. The results obtained from tensile tests indicated that the mechanical property of the dispersion system improved with C30B content. A high-performance castor oil-based nanocomposite coating with low volatile organic component can be targeted as an outcome of this work. Note de contenu : - EXPERIMENTAL : Materials - Synthesis of CO-based PU-C30B waterborne nanocomposite film - Preparation of nanocomposite films - Instrument characterization
- RESULTS AND DISCUSSION : FTIR analysis - Characterization of hydrogen bonding via FTIR - Morphological studies - Mechanical propertiesDOI : 10.1007/s11998-016-9855-8 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-016-9855-8.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28153
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 14, N° 2 (03/2017) . - p. 377-394[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 18781 - Périodique Bibliothèque principale Documentaires Disponible Synthesis of epoxy resins using phosphorus-based precursors for flame-retardant coating / Siddhesh Mestry in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 16, N° 3 (05/2019)
[article]
Titre : Synthesis of epoxy resins using phosphorus-based precursors for flame-retardant coating Type de document : texte imprimé Auteurs : Siddhesh Mestry, Auteur ; Shashank T. Mhaske, Auteur Année de publication : 2019 Article en page(s) : p. 807-818 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Dichlorure de phénylphosphonique
Epoxydes
IgnifugeantsComposé chimique utilisé pour réduire l'inflammabilité. Il peut être incorporé au produit durant sa fabrication ou appliqué ultérieurement à sa surface.
Polymères -- Synthèse
Revêtements -- Analyse
Revêtements -- Propriétés mécaniques
Revêtements organiques
Revêtements protecteurs
Trichlorure de phosphoryleLe trichlorure de phosphoryle, ou oxychlorure de phosphore, est un composé chimique de formule brute POCl3.
Le trichlorure de phosphoryle réagit avec l'eau et les alcools pour donner du chlorure d'hydrogène et respectivement de l'acide phosphorique et des esters de phosphate : POCl3 + 3 H2O → H3PO4 + 3 HCl.
POCl3 peut également réagir avec une base de Lewis pour former des composés d'addition avec différents acides de Lewis tels que le tétrachlorure de titane : Cl3P+-O- + TiCl4 → Cl3P+-O--TiCl4.
Le composé POCl3·AlCl3 résultant de l'addition de chlorure d'aluminium sur le trichlorure de phosphoryle est assez stable, de sorte que POCl3 peut être utilisé pour éliminer le chlorure d'aluminium du mélange résultant d'une réaction de Friedel-Crafts.
POCl3 réagit avec le bromure d'hydrogène en présence de chlorure d'aluminium pour former le tribromure de phosphoryle POBr3.Index. décimale : 667.9 Revêtements et enduits Résumé : Materials imparting flame retardancy play a pivotal role in the development of advanced materials due to their ability to reduce the annihilating effect of fire on man and environment. Realizing the commercial significance of epoxy resins, an attempt has been made to enhance their flame retardancy even under demanding conditions. Among the various flame-retardant materials, phosphorus-containing compounds are gaining interest both in academic and industrial areas due to their simple mechanism of action which involves char formation, a barrier between the substrate and the fire which protects the substrate from being burnt. In the present research work, unconventional starting material—diethanolamine—was used to synthesize phosphorus-based flame-retardant precursors. Intermediates formed in first step were reacted with epichlorohydrin to form epoxy resins. Structure of the compounds was confirmed by Fourier transform infrared spectroscopy, nuclear magnetic resonance spectroscopy, hydroxyl, and epoxy values. Resins were cured with commercial polyamide, and properties were compared with commercial epoxy resin. Coating films were characterized by various physical, mechanical, and thermal properties like impact resistance, pencil hardness, gloss, solvent resistance, thermogravimetric analysis (TGA), and differential scanning calorimetry (DSC). The TGA and DSC results showed that the char yield value has increased from 3.36 to 8.53%, and the glass transition temperature (Tg) has increased from 72.86 to 82.05°C while the initial degradation temperature decreased. Coatings showed excellent flame retardancy with maximum Limiting Oxygen Index value of 35 and a self-extinguishing behavior as confirmed by the UL-94 test. Note de contenu : - EXPERIMENTAL : Materials - Reaction of DEA with PPDC/POCl3 - Synthesis of epoxy resin from P-1 and P-2 - Preparation of FR coating
- CHARACTERIZATION : Physicochemical analysis - Fourier transform infrared (FTIR) spectroscopy - Nuclear magnetic resonance (NMR) spectroscopy - Thermogravimetric analysis (TGA) - Differential scanning calorimetry (DSC) analysis - Mechanical properties - Gel content - Water absorption - Solvent scrub resistance and gloss - ILimiting Oxygen Index (LOI) - UL-94 vertical burning test
- RESULTS AND DISCUSSION : Physicochemical analysis - FTIR spectroscopy - NMR spectroscopy - Thermogravimetric analysis (TGA) - DSC analysis - Mechanical properties - Gel content - Water absorption - Solvent scrub resistance and gloss - LOI - UL-94 vertical burning testDOI : 10.1007/s11998-018-00157-3 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-018-00157-3.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32592
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 16, N° 3 (05/2019) . - p. 807-818[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 20953 - Périodique Bibliothèque principale Documentaires Disponible Test procedures for qualitative and quantitative detection of lead / Mukund Hulyalkar in PAINTINDIA, Vol. LXX, N° 12 (12/2020)
[article]
Titre : Test procedures for qualitative and quantitative detection of lead Type de document : texte imprimé Auteurs : Mukund Hulyalkar, Auteur Année de publication : 2020 Article en page(s) : p. 126-129 Langues : Anglais (eng) Catégories : Peinture -- Teneur en plomb
Revêtements -- Analyse:Peinture -- AnalyseIndex. décimale : 667.6 Peintures Note de contenu : Repercussions of lead 90ppm
- Lead : Detection of lead (qualitative) - Estimate of lead (quantitative) - Moral of the story practically in case of primer 1gm lead is allowed in 100 kg finished product
- Identification of lead in pigments
- Test for zinc chromate in zinc chrome primer
- Table : Analytical techniques : Testing lead in paintsEn ligne : https://drive.google.com/file/d/1Yoib0HowYkqnryQYE9LvbJbzKEXe1VYP/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35208
in PAINTINDIA > Vol. LXX, N° 12 (12/2020) . - p. 126-129[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 22556 - Périodique Bibliothèque principale Documentaires Disponible
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Titre : Test track for coatings Type de document : texte imprimé Année de publication : 2017 Article en page(s) : p. 102-108 Langues : Anglais (eng) Catégories : Automatisation
Essais (technologie)
Revêtements -- Analyse:Peinture -- AnalyseIndex. décimale : 667.9 Revêtements et enduits Résumé : A new, fully automated high-through put system for testing coating formulations enables Evonik to cut down significantly on time spent searching for the optimal formulation. In doing so, Evonik accelerates not only its own pace of innovation, but also that of its customers. Note de contenu : - Faster testing for the perfect formulation
- Complex steps fully automated
- Flexible use around the clock
- The strengths of the HTE systemEn ligne : https://drive.google.com/file/d/1dtWGJ3NzwmMYfpzo4Z24_n2lseoFBqgf/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=29262
in PAINTINDIA > Vol. LXVII, N° 8 (08/2017) . - p. 102-108[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 19294 - Périodique Bibliothèque principale Documentaires Disponible The effect of carbon nanotubes loaded with 2-mercaptobenzothiazole in epoxy-based coatings / Kunal V. Yeole in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 13, N° 1 (01/2016)
[article]
Titre : The effect of carbon nanotubes loaded with 2-mercaptobenzothiazole in epoxy-based coatings Type de document : texte imprimé Auteurs : Kunal V. Yeole, Auteur ; L. P. Agarwal, Auteur ; Shashank T. Mhaske, Auteur Année de publication : 2016 Article en page(s) : p. 31-40 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Anticorrosion
Caractérisation
Couches minces multicouches
Diffractométrie de rayons X
Epoxydes
Essais (technologie)
Essais de brouillard salin
Fourier, Spectroscopie infrarouge à transformée de
Humidité -- Absorption:Eau -- Absorption
Mercaptobenzothiazole
Métaux -- Revêtements protecteurs
Morphologie (matériaux)
Nanotubes
Polarisation (lumière)
Polypyrroles
Potentiel zeta
Revêtements -- Analyse:Peinture -- Analyse
Taille des particules
ThermogravimétrieIndex. décimale : 667.9 Revêtements et enduits Résumé : Currently, anticorrosive coatings find a large number of applications and can be effectively used for corrosion protection of many corrosion-prone metals like aluminum, iron, etc. Nanocontainers have the ability to encapsulate large amounts of guest molecules within their core, and releasing them in a controlled way can aid in providing self-healing abilities to the coating, thus providing active protection. In the present study, a novel approach of synthesis of nanocontainers using carbon nanotubes (CNTs) and corrosion inhibitor 2-mercaptobenzothiazole has been discussed with their applications in corrosion protection of mild steel (MS). It is a three-step procedure involving layer-by-layer deposition of the CNT, inhibitor, and polyelectrolytes, which thus provides enhanced corrosion protection when coated on MS plates. The thickness of the layer, surface charge, and functional groups present on each layer were identified using various analytic techniques such as particle size distribution, zeta potential, and FTIR analysis. X-ray diffractograms analyses of CNT and modified CNT were performed to evaluate their crystallographic properties. The morphological and particle size clearly indicate the development of a nanocontainer. The corrosion rate analysis of nanocontainer-epoxy coatings on MS panel has been performed by means of salt spray and DC polarization measurements. The corrosion resistance was measured after the immersion of the coated samples in alkali solution. Note de contenu : - EXPERIMENTAL : Materials and reagent - Coating of polypyrrole layer on CNT - Loading of 2-mercaptobenzothiazole (MBT) - Coating of polyacrylic acid layer - Application in epoxy-based coatings
- CHARACTERIZATION
- RESULTS AND DISCUSSION : FTIR - XRD analysis - Morphological study - Thermogravimetric analysis - Particle size and zeta potential analysis - Release study of corrosion inhibitor at different pH values - Water absorption test - Salt spray test - DC polarization measurementDOI : 10.1007/s11998-015-9730-z En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-015-9730-z.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=25369
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 13, N° 1 (01/2016) . - p. 31-40[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 17819 - Périodique Bibliothèque principale Documentaires Disponible The effect of caustic soda solutions on fusion-bonded epoxy coatings at high temperatures / Hassan Al-Sagour in JOURNAL OF PROTECTIVE COATINGS & LININGS (JPCL), Vol. 35, N° 9 (09-10/2018)
PermalinkThe experience factor in coating development / Gerhard Grüll in EUROPEAN COATINGS JOURNAL (ECJ), N° 9 (09/2020)
PermalinkThe formation of polyester-melamine/urethane coatings / Nadezda Denisova in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 209, N° 4651 (05/2019)
PermalinkThe sky is falling ! Or is it paint chips ? / Richard A. Burgess in JOURNAL OF PROTECTIVE COATINGS & LININGS (JPCL), Vol. 34, N° 10 (10/2017)
PermalinkUtilization of the glycerol phase from biodiesel production for the preparation of alkyd paints / Svetlana Genieva in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 17, N° 5 (09/2020)
PermalinkUV-curable behavior of phosphorus- and nitrogen-based reactive diluent for epoxy acrylate oligomer used for flame-retardant wood coating / Sachin U. Chambhare in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 13, N° 4 (07/2016)
PermalinkUV-curable organic-inorganic hybrid hard coatings for metal sheets / Woo-Chan Choi in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 16, N° 3 (05/2019)
PermalinkWatching paint dry : not as simple as it sounds / Troy E. Fraebel in JOURNAL OF PROTECTIVE COATINGS & LININGS (JPCL), Vol. 35, N° 8 (08/2018)
PermalinkWaterborne crackle decorative coatings and crack patterns / Mayur Khandait in PAINTINDIA, Vol. LXXI, N° 1 (01/2021)
PermalinkWhen a good idea goes bad / Rick A. Huntley in JOURNAL OF PROTECTIVE COATINGS & LININGS (JPCL), Vol. 30, N° 3 (03/2013)
PermalinkX-ray photoelectron spectroscopy as an analysis tool for coatings in COATINGS TECH, Vol. 8, N° 2 (02/2011)
PermalinkXPS - a tool for the chemical characterisation of coatings and interfaces / R. G. White in SURFACE COATINGS INTERNATIONAL, Vol. 93, 4 (08/2010)
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