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Microwave-assisted polyol synthesis of V–ZrSiO4 nanoparticles and its use as a blue ceramic pigment / Hossein Heydari in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 19, N° 5 (09/2022)
[article]
Titre : Microwave-assisted polyol synthesis of V–ZrSiO4 nanoparticles and its use as a blue ceramic pigment Type de document : texte imprimé Auteurs : Hossein Heydari, Auteur ; Mardali Yousefpour, Auteur ; Esmaeil Emadoddin, Auteur ; Maryam Hosseini Zori, Auteur ; Mohsen Khajeh Aminian, Auteur Année de publication : 2022 Article en page(s) : p. 1595-1607 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Bleu (couleur)
Caractérisation
Colorimétrie
Dispersions et suspensions
Matériaux céramiques
Micro-ondes
Pigments inorganiques
Polymères -- Synthèse
Polyols
ZirconLe zircon est un minéral du groupe des silicates, sous-groupe des nésosilicates. De composition ZrSiO4, c'est un silicate de zirconium naturel. Ses cristaux font partie des pierres fines de la joaillerie.
Le mot zircon proviendrait, soit de l'arabe zarqun (cinabre), soit du persan zargun (doré). On retrouve cette étymologie dans l'anglais jargoon, qui désigne des zircons de couleur claire. Les zircons jaunes à grenat sont appelés hyacinthes (du grec signifiant "jacinthe"). Les spécimens transparents sont utilisés en joaillerie pour des utilisations similaires à celles du diamant.
Le terme de zircon est parfois utilisé à tort pour désigner la zircone, l'oxyde de zirconium de composition ZrO2. La zircone à l'état naturel (minéral baddeleyite (en)) est extraite industriellement pour servir de substitut peu onéreux au diamant. (Wikipedia)Index. décimale : 667.9 Revêtements et enduits Résumé : In this study, a microwave-assisted polyol technique was used to synthesize vanadium-containing nanopigments of ZrSiO4. The influence of microwave power (300–900 W) and irradiation time (60–120 s) on the purity, crystallinity, and particle size of the synthesized nanoparticles was studied. The resulting powder (synthesized and calcined) was investigated by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), and transmission electron microscopy (TEM). XRD analysis shows that the 300 W synthesized powder is composed of solid amorphous particles. The microwave power was increased to 900 W to convert all particles to crystalline nano-ZrSiO4. The experiment revealed the critical influence of irradiation time and microwave power on purity and crystallinity. The microwave effect can accelerate the reaction and the nucleation rate of ZrSiO4 at a lower reaction temperature. The nanoparticles obtained were tested as ceramic pigments, and the colorimetric parameters of CIELab were measured. Structure and colorimetric studies have confirmed that a fully crystalline zircon phase can be obtained at 1100°C and can be used as a blue pigment. Note de contenu : - EXPERIMENTAL PROCEDURE : Precursor and reagents - Preparation of suspensions - Techniques of characterization
- RESULTS AND DISCUSSION : Synthesis and characterization of suspensions - Effect of microwave power and irradiation time on crystallinity - Microstructure investigation - Colorimetric results
- Table 1 : Sample preparation conditions for different microwave power and irradiation time in EG solvent
- Table 2 : CIELab values of the glazes provided by pigments calcined at 1100°CDOI : https://doi.org/10.1007/s11998-022-00632-y En ligne : https://link.springer.com/content/pdf/10.1007/s11998-022-00632-y.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38292
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 19, N° 5 (09/2022) . - p. 1595-1607[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 23672 - Périodique Bibliothèque principale Documentaires Disponible
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Titre : Mix and match : Combining solution and emulsion polymerised polyols improves properties Type de document : texte imprimé Auteurs : Jaap Akkerman, Auteur ; Dirk Mestach, Auteur Année de publication : 2008 Article en page(s) : p. 26-32 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Polymérisation en émulsion
Polyols
PolyuréthanesIndex. décimale : 667.9 Revêtements et enduits Résumé : Waterborne polyurethane coatings can combine high performance with low VOC content. However, some conflicts exist when formulating these coatings. It is shown that mixtures of high MW dispersion polyol and low MW emulsion polyols may give the best combination of hardness, crosslinking, drying time and solvent resistance. En ligne : https://drive.google.com/file/d/1UmGT3Ef8w03xw45DmHK5nuYyBmYBwov7/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=2671
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 10/2008 (10/2008) . - p. 26-32[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 010731 - Périodique Bibliothèque principale Documentaires Disponible
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Titre : Natural advantages : Fatty acid dimers give UV-PUDs fast drying and good resistance properties Type de document : texte imprimé Auteurs : Erwin Honcoop, Auteur ; Hans Ridderikhoff, Auteur ; Wolfgang Geuking, Auteur Année de publication : 2008 Article en page(s) : p. 22-26 Langues : Anglais (eng) Catégories : Acides gras
Dimères
Polyesters
Polyols
Polyuréthanes
Revêtements -- Séchage sous rayonnement ultravioletIndex. décimale : 667.9 Revêtements et enduits Résumé : A range of polyester polyols based on dimerised fatty acids was produced and evaluated in both conventional and UV-curable polyurethane dispersions. Their highly hydrophobic nature and lack of ether bonds result in good hydrolytic stability, fast water release on drying and resistance to degradation by UV light and moisture. En ligne : https://drive.google.com/file/d/1SKmzkekdLKGW7ofso2GokG1lPPLqY4p8/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=2402
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 04/2008 (04/2008) . - p. 22-26[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 010020 - Périodique Bibliothèque principale Documentaires Disponible
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Titre : A natural choice : Cashew nutshell liquid-based epoxy curing agents and polyols offer outstanding performances and benefits for adhesives and sealants Type de document : texte imprimé Auteurs : Yun mi Kim, Auteur ; James Zhao, Auteur ; William Wei, Auteur Année de publication : 2017 Article en page(s) : p. 21-25 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Anticorrosion
Cardanol
Colles:Adhésifs
Diols
Epoxydes
Joints d'étanchéité
Noix de cajou et constituants
Phénalkamides
Phénalkamines
Polyols
Résistance à l'humidité:Résistance à l'eau
Résistance chimique
Ressources renouvelables
RéticulantsIndex. décimale : 668.3 Adhésifs et produits semblables Résumé : Cashew nutshell liquid (CNSL), a bio-renewable resource found in the honeycomb structure of the cashew nutshell, is considered a byproduct of the cashew industry. Therefore, CNSL is a non-food chain product that would otherwise be disposed of. Cashew trees can grow abundantly in tropical conditions.
One of the most commercially useful chemicals from CNSL is cardanol, a pentadecadienyl phenol with an aliphatic side chain that usually consists of a mixture of one, two, and three double bonds in a linear chain. This natural phenolic compound has interesting chemical structural features that enable a variety of chemical modifications to create bio-based monomers and polymers. Phenalkamine is one of most successful chemicals used in cashew nutshell liquid, along with phenalkamide, exhibiting good reactivity for fast and low-temperature cure and strong adhesion even to damp or poorly prepared surfaces. In addition, its long aliphatic side chain delivers excellent water resistance, corrosion protection and chemical resistance.Note de contenu : - Phenalkamines
- Phenalkamides
- CNSL polyols
- CNSL diols
- TABLES : 1. Tested curing agents, phenalkamines, phenalkamides, and reference curing agent - 2. Tested polyols and diols - 3. Mechanical properties of phenalkamines and the reference - 4. Performance comparison of phenalkamides - 5. Physical properties of polyols cured with polymeric MDI (P-MDI) - 6. Compatibility oc CNSL diols compared to PolyBDEn ligne : http://www.adhesivesmag.com/articles/95456-a-natural-choice-for-adhesives-and-se [...] Format de la ressource électronique : Web Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28640
in ADHESIVES & SEALANTS INDUSTRY (ASI) > Vol. 24, N° 5 (05/2017) . - p. 21-25[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 18912 - Périodique Bibliothèque principale Documentaires Disponible Natural polyhydroxy resins in surface coatings : a review in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 19, N° 3 (05/2022)
[article]
Titre : Natural polyhydroxy resins in surface coatings : a review Type de document : texte imprimé Année de publication : 2022 Article en page(s) : p. 775-794 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Biodégradation
Biomatériaux
Durée de vie (Ingénierie)
Enrobage (technologie)
Huile de ricin et constituants
Noix de cajou et constituants
Polyols
Polyuréthanes
Revêtements organiques
TaninsIndex. décimale : 667.9 Revêtements et enduits Résumé : The depletion of fossil fuels, high environmental pollution due to the release of toxic organic compounds, and high cost are some of the challenges regarding the reliance on petroleum-based resins. Natural polyhydroxy resins (from cashew nutshell liquid, castor oil, tannins, among others) are readily available, eco-friendly, low cost, and biodegradable, and offer enhanced properties when deployed on surface coatings. Accordingly, more attention has been paid to utilizing natural polyhydroxy compounds and bio-based polyurethane resins to replace synthetic resins in the last few decades. This review presents state-of-the-art natural polyhydroxy resins and their application as precursors in surface coatings. Bio-based resins from cashew nutshell liquid (cardanol), castor oil, and tannins employed as precursors in bio-based polyurethane coatings exhibit enhanced/excellent impact strength, adhesion, flexibility, water, and chemical resistance, to mention a few. Moreover, natural resins and eco-friendly polyurethane coatings, including their methods of modification, are also reviewed. This review article helps to promote natural polyhydroxy resins as sustainable and promising green materials for the coatings industry. Note de contenu : - Biodegradability of polyhydroxy resin coatings
- Oleoresinous varnishes (natural resins)
- Cashew nutshell liquid (CNSL) resins in surface coatings :
Decorative coatings - Protective coatings
- Castor oil : Castor oil resins in decorative coatings - Castor oil resins in protective coatings
- Tannin-based resins (in surface coatings) : Tannins in protective coatings
- Polyurethane coatings : Polyhydroxy urethane resins in surface coatings - Modification of bio-based precursors as intermediates for PU coatings
- Life cycle assessment of bio-based precursors in surface coatings
- Drawbacks of polyhydroxy resin coatings and solutions
- Table 1 : Application of CNSL resins in surface coatings
- Table 2 : Mechanical and thermal properties of castor-oil based biopolymers/resins
- Table 3 : 1K and 2K product PU coatings
- Table 4 : Bio-based precursors modification procedures, application, and properties of PUsDOI : https://doi.org/10.1007/s11998-021-00604-8 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-021-00604-8.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38071
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 19, N° 3 (05/2022) . - p. 775-794[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 23605 - Périodique Bibliothèque principale Documentaires Disponible Necessity is the mother of invention / David Vanaken in EUROPEAN COATINGS JOURNAL (ECJ), N° 2 (02/2022)
PermalinkNext step to a sustainable coating / Miha Steinbücher in EUROPEAN COATINGS JOURNAL (ECJ), (01-02/2024)
PermalinkA novel approach for the evaluation of ice release performance of coatings using static friction measurements / M. Martinsen in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 18, N° 3 (05/2021)
PermalinkNovel liquid bio-based polyester polyols with extremely high elongation / Angela Smits in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 205, N° 4606 (03/2015)
PermalinkPermalinkOffering formulation freedom / Jelle van der Werf in EUROPEAN COATINGS JOURNAL (ECJ), N° 4/2011 (04/2011)
PermalinkOleochemical polyols - a new raw material source for polyurethane coatings and floorings / Rainer Höfer in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 69, N° 869 (06/1997)
PermalinkOptimized synthesis of highly reactive UV-curable hyperbranched polyester acrylates / Sacha Pérocheau Arnaud in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 17, N° 1 (01/2020)
PermalinkOptions for Polyurethane Chemistry / Corey King in ADHESIVES & SEALANTS INDUSTRY (ASI), Vol. 20, N° 2 (02/2013)
PermalinkPermalinkPermalinkPerformance control of polyether-based reactive hot melt adhesives / Ricardo De Genova in ADHESIVES AGE, Vol. 40, N° 12 (11/1997)
PermalinkPhytic acid based novel optically transparent intumescent fire-retardant coating for protection of combustible substrates with retention of aesthetic appearance / Raj Shree in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 19, N° 2 (03/2022)
PermalinkPhytic acid oligomers as bio-based crosslinkers for epoxy and polyol resins / P. Böhm in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 21, N° 1 (01/2024)
PermalinkPlastic waste into custom-made polyols / Frank Dürsen in KUNSTSTOFFE INTERNATIONAL, Vol. 110, N° 1 (01/2020)
PermalinkPolylactic acid polyols in urethane reactive hot-melt and solventborne adhesives / William D. Coggio in ADHESIVES & SEALANTS INDUSTRY (ASI), Vol. 27, N° 3 (03/2020)
PermalinkPolymer bio-composites based on collagen / Ján Matyasovsky in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CVII, N° 10 (10/2012)
PermalinkLes polyols / Paris : Dunod (1957)
PermalinkPolyols and polyurethanes from renewable sources : past, present and future—part 1 : vegetable oils and lignocellulosic biomass / Ritesh S. Malani in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 19, N° 1 (01/2022)
PermalinkPolyols and polyurethanes from renewable sources : past, present, and future - part 2 : plant-derived materials / Ritesh S. Malani in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 19, N° 2 (03/2022)
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