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Novel and environmentally-friendly urethane/acrylic hybrid dispersions / R. Satguru in SURFACE COATINGS INTERNATIONAL, Vol. 90, 1 (01/2007)
[article]
Titre : Novel and environmentally-friendly urethane/acrylic hybrid dispersions Type de document : texte imprimé Auteurs : R. Satguru, Auteur ; M. Roelands, Auteur ; P. L. Jansse, Auteur Année de publication : 2007 Article en page(s) : p. 32-35 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Copolymère uréthane acrylique
Polyacryliques
Polymères en émulsion
Revêtements en phase aqueuse:Peinture en phase aqueuseIndex. décimale : 667.9 Revêtements et enduits Résumé : Polyurethane dispersions (PUDs) are a unique class of water-borne polymer colloids which offer many advantages to the surface coating industry. They are usually produced through the interaction of a polyfunctional isocyanate with a polyfunctional isocyanate with a polyfunctionnal chemical compound containing an active hydrogen in its structure. Note de contenu : - PUD PRODUCTION ROUTES : Hybrid systems allow optimum cost/performance balance
- ATTRIBUTES OF URETHAND/ACRYLIC HYBRIDS : Environmental friendliness - Low VOC systems
- PROPERTY BALANCESEn ligne : https://drive.google.com/file/d/1U4LmI2UriYYGPFhDe1n7QSCzO9xy3MQA/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=16167
in SURFACE COATINGS INTERNATIONAL > Vol. 90, 1 (01/2007) . - p. 32-35[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 006223 - Périodique Bibliothèque principale Documentaires Disponible 008958 - Périodique Bibliothèque principale Documentaires Disponible A novel process for making patent leather / F. Scholnick in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXXIV (Année 1989)
[article]
Titre : A novel process for making patent leather Type de document : texte imprimé Auteurs : F. Scholnick, Auteur ; Peter R. Buechler, Auteur Année de publication : 1989 Article en page(s) : p. 65-70 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Brillance (optique)
Copolymère uréthane acrylique
Cuirs et peaux -- Finition
Formulation (Génie chimique)
Résistance à l'abrasion
Réticulation (polymérisation)
Souplesse (mécanique)
Traction (mécanique)
VernisIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : Radiation curable formulations have been developed for use in preparation of finishes suitable for patent leather. Curing can be achieved by either ultraviolet or electron beam irradiation. In contrast to conventional methods, complete finish application is obtained rapidly, without the use of heating ovens, and with no air pollution. Patent leather produced by this process exhibits good gloss and flexibility and excellent abrasion resistance. Flexibility was affected by the type and amount of crosslinking agent incorporated into the coating as well as by the acrylated urethane oligomer used as the coating backbone. The effects of varying the formulation on final finish properties are discussed. Note de contenu : - TABLE I : Variation of gloss with coating thickness
- TABLE II : Variation of flexibility with systems (one 4-mil coat)
- TABLE III : Variation of flexibility with coating systems (two 4 mil coats)
- TABLE IV : Tensile strength and elongation at failure of various formulations
- TABLE V : Patent leather properties from uvithane 892 formulation
- TABLE V : Patent leather properties from uvithane 892 formuationEn ligne : https://drive.google.com/file/d/16OZQuhEJFcHYADGdxXSc7JKZAidFYHQu/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=17288
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. LXXXIV (Année 1989) . - p. 65-70[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 008089 - Périodique Bibliothèque principale Documentaires Disponible POSS-vinyl-urethane acrylate-based nanohybrid coating materials / Yasemin Eren in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 21, N° 2 (03/2024)
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Titre : POSS-vinyl-urethane acrylate-based nanohybrid coating materials Type de document : texte imprimé Auteurs : Yasemin Eren, Auteur ; Ferhat Sen, Auteur ; Suzan Abdurrahmanoglu, Auteur ; Sevim Karatas, Auteur Année de publication : 2024 Article en page(s) : p. 575-587 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Copolymère uréthane acrylique
Formulation (Génie chimique)
Matériaux hybrides
Polymères -- Propriétés chimiques
Polymères -- Propriétés thermiques
Réaction thiol-ène
Revêtements -- Séchage sous rayonnement ultraviolet
Revêtements organiques
Silsesquioxanes oligomères polyhèdresIndex. décimale : 667.9 Revêtements et enduits Résumé : The effect of POSS-vinyl-heptaisobutyl-substituted (POSSV) compounds as an inorganic additive on the thermal and physical properties of nanohybrid coating materials based on urethane acrylate (UA) resin has been investigated. A diol compound obtained from the reaction of itaconic acid and 1,2-epoxy cyclohexane has been used to produce an UV curable epoxy-based urathane acrylate resin. Nanohybrid coating materials were obtained by curing the UA resin with UV radiation through the thiol–ene reaction, mixed with various amounts of POSSV compounds. The structure of the UA resin was characterized by Fourier-transform infrared spectroscopy and nuclear magnetic resonance spectroscopy techniques. The UV curing process was also studied by the double bond conversion method. Aggregation of the nanohybrid materials was determined by X-ray diffraction. The thermal, non-flammability, and thermomechanical properties of the samples were examined by thermogravimetric analysis, limiting oxygen index, and dynamic mechanical analysis techniques. Light transmittance of the samples was determined by UV–Vis spectrophotometry, and their morphological structure was determined by scanning electron microscopy. In addition, gel contents, swelling rates, hardness, adhesion, contact angles, and resistance to chemicals and solvents of the samples were examined. In conclusion, nanohybrid materials obtained from the synthesized UA resin and improved with POSSV additive can be used in the coating industry. Note de contenu : - EXPERIMENTAL : Materials - Synthesis of epoxy-based urethane acrylate resin - Preparation of UV curable nanohybrid coating materials - Characterization
- RESULTS AND DISCUSSION : Structures characterization of UA resin - Double bonds conversion of UA resin and nanohybrid materials - XRD analysis of UA resin and nanohybrid materials - Thermal properties of UA resin and nanohybrid materials - Optical properties of UA resin and nanohybrid materials - Physical characterization of UA resin and nanohybrid materials - Chemical and solvent resistance of UA resin and nanohybrid materials - Morphologies of UA resin and nanohybrid materials
- Table 1 : Formulations of nanohybrid coatings materials
- Table 2 : Thermal properties of UA resin and nanohybrid materials
- Table 3 : Transmittance of UA resin and nanohybrid materials
- Table 4 : Physical characterization of UA resin and nanohybrid materials
- Table 5 : Chemical resistance of UA resin and nanohybrid materials
- Table 6 : Solvent resistance of UA resin and nanohybrid materialsDOI : https://doi.org/10.1007/s11998-023-00839-7 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-023-00839-7.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40778
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 21, N° 2 (03/2024) . - p. 575-587[article]Preparation, properties and application of waterborne hyydroxyl-functional polyurethane/acrylic emulsions in two-component coatings / Guozhang Ma in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 12, N° 3 (05/2015)
[article]
Titre : Preparation, properties and application of waterborne hyydroxyl-functional polyurethane/acrylic emulsions in two-component coatings Type de document : texte imprimé Auteurs : Guozhang Ma, Auteur ; Taotao Guan, Auteur ; Caiying Hou, Auteur ; Jianbing Wu, Auteur ; Gang Wang, Auteur ; Xuan Ji, Auteur ; Baojun Wang, Auteur Année de publication : 2015 Article en page(s) : p. 505-512 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Adhésion
Caractérisation
Copolymère uréthane acrylique
Copolymères en émulsion
Dureté (matériaux)
Matériaux hybrides
Mouillabilité
Revêtements -- Propriétés mécaniques:Peinture -- Propriétés mécaniques
Revêtements bi-composant:Peinture bi-composantIndex. décimale : 667.9 Revêtements et enduits Résumé : A serious of waterborne hydroxyl-functional polyurethane/acrylic (PUA) emulsions for two-component coatings was prepared by copolymerizing different weight ratios of hydroxyethyl acrylate (HEA)/butyl acrylate (BA) with methyl methacrylate and acrylic-terminated polyurethane dispersion via an emulsion process. The results showed that increasing the weight ratio of HEA/BA led to a decrease in the average particle sizes and a narrowing in the particle size distribution, but an increase in the viscosity of their emulsions. Meanwhile, their films showed increased thermal resistance, adhesion on substrate, tensile strength, and hardness, but decreased water resistance and enhanced wettability. When the emulsions were applied in two-component coatings, their water resistance was greatly improved and the wettability was reduced; in addition, their glass transition temperature, thermal stability, adhesion on substrate, tensile strength, and hardness were further increased. It was suggested that hydroxyl groups of PUA can not only engage in the intramolecular and/or intermolecular hydrogen bonding, but also form covalently crosslinked networks with polyisocyanate in their films. Note de contenu : - EXPERIMENTAL : Materials - Preparation of PUA hybrid emulsions - Application in two-component coatings and preparation of their films - Measurements and characterization
- RESULTS AND DISCUSSION : The performance of PUA hybrid emulsions - The FTIR and thermal behaviors of the films - The water wettability and water absorption of the films - The adhesion of the coatings - The mechanical properties and hardness of the filmsDOI : 10.1007/s11998-014-9647-y En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-014-9647-y.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=24174
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 12, N° 3 (05/2015) . - p. 505-512[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 17244 - Périodique Bibliothèque principale Documentaires Disponible Revealing nanoscale chemical heterogeneity at the surface of water-based coatings prepared from urethane–acrylic hybrids by photo-induced force microscopy / Qi Chen in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 16, N° 6 (11/2019)
[article]
Titre : Revealing nanoscale chemical heterogeneity at the surface of water-based coatings prepared from urethane–acrylic hybrids by photo-induced force microscopy Type de document : texte imprimé Auteurs : Qi Chen, Auteur ; Saskia van der Slot, Auteur ; Sven Kreisig, Auteur ; Mingwen Tian, Auteur ; Ron Peters, Auteur ; Joachim Loos, Auteur Année de publication : 2019 Article en page(s) : p. 1553-1558 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Copolymère uréthane acrylique
Microscopie
Revêtements en phase aqueuse
Revêtements organiquesIndex. décimale : 667.9 Revêtements et enduits Résumé : The surface chemical composition of water-based coatings prepared from urethane–acrylic hybrids or blends is investigated using infrared photo-induced force microscopy. By monitoring the interaction between the optically driven molecular dipole and its mirror image in a metal-coated tip, detailed information of the chemical composition at the coating surface down to 20 nm local resolution in all three dimensions is obtained. The film matrix of the coatings is determined to be the polyurethane while the polyacrylate particles are dispersed in the film. Phase separation of the two materials is found to be at a much smaller length scale in hybrid coatings compared to that in blends. This is because the acrylic monomers are introduced during the dispersion of the polyurethane in the synthesis of the hybrid particles, in contrast to the simple mixing of the two polymer particles in the case of the blends. Photo-induced force microscopy proved to be a powerful tool in the identification and visualization of different chemical species of coating surfaces at the nanoscale. DOI : 10.1007/s11998-019-00208-3 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-019-00208-3.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33259
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 16, N° 6 (11/2019) . - p. 1553-1558[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 21321 - Périodique Bibliothèque principale Documentaires Disponible Studies on the effect of structural parameters on the properties of polysiloxaneurethane dispersions and coatings / J. Kozakiewicz in SURFACE COATINGS INTERNATIONAL. PART B : COATINGS TRANSACTIONS, Vol. 89, B1 (03/2006)
PermalinkSurfactant concepts redesigned / Silfredo Javier Bohorquez in EUROPEAN COATINGS JOURNAL (ECJ), N° 9 (09/2017)
PermalinkThe influence of methacrylic acid and urethane methacrylate on the film properties of hybrid urethane–acrylic latexes in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 18, N° 6 (11/2021)
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