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Functional powder coatings via isocyanate-cured phenolics and benzoxazines / Weih Lee in COATINGS TECH, Vol. 17, N° 7 (07/2020)
[article]
Titre : Functional powder coatings via isocyanate-cured phenolics and benzoxazines Type de document : texte imprimé Auteurs : Weih Lee, Auteur ; Robert Polance, Auteur ; Hart Haugen, Auteur Année de publication : 2020 Article en page(s) : p. 16-23 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Analyse mécanique dynamique
Benzoxazine
Calorimétrie
Formulation (Génie chimique)
Isocyanates
Phénols
Polyuréthanes
Revêtements anti-graffitis
Revêtements poudre
RhéologieIndex. décimale : 667.9 Revêtements et enduits Résumé : In this work centering around phenolic chemistry, we investigated isocyanate and benzoxazine-modified phenolic powder coatings for use in anti-graffiti applications and for addressing downhole drill pipe interior coating challenges. Allied polyurethane formulations were developed using phenolic hydroxyl-isocyanate reactions and shown to outperform conventional aliphatic polyol-isocyanate coatings for graffiti-resistant applications. Effects of variables like phenol hydroxyl equivalent weights and molecular weights of phenolic resins were examined. In a separate effort intended for oil and gas downhole pipe interior lining applications, novel fusion-bonded benzoxazine-epoxy-phenolic formulations, without or with an acid catalyst, exhibited excellent adhesion, toughness, and process-ability, in addition to greatly reducing cure requirements as compared to benzoxazine self-polymerization. Applicable rheology and kinetics of cure were quantified, revealing characteristic flow and cure behaviors to strengthen the understanding of structure-property relationships and to facilitate efficient optimization of coating performance. Note de contenu : - MATERIALS AND METHODS : Dynamic mechanical analysis and differential scanning calorimetry - Physycal testing
- RESULTS AND DISCUSSION : Phenolic PU - Fusion bonded benzoxazines
- Fig. 1 : Chemical structure of BPA-derived phenolic resins
- Fig. 2 : Simplified benzoxazine self-crosslinking
- Fig. 3 : Chemical structure and basic properties of BOX80
- Fig. 4 : Di-functional BPA phenolic resins and internally blocked IPDI dimers were reacted to yield a thermosetting PU
- Fig. 5 : Taber abrasion weight losses
- Fig. 6 : Rheological DMA profiles for UO-D8
- Fig. 7 : DSC exothermic curves and kinetic data
- Fig. 8 : Rheological DMA profiles for BOX80 self-crosslinking
- Table 1 : Formulation matrix and physical properties
- Table 2 : Complete kinetics and cure schedulesEn ligne : https://drive.google.com/file/d/17EjEnXJZc80tkHpeRfLrIV1RFYHJmg9j/view?usp=share [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34341
in COATINGS TECH > Vol. 17, N° 7 (07/2020) . - p. 16-23[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 21873 - Périodique Bibliothèque principale Documentaires Disponible General information on polyurethane chemistry and its application in coatings / Anand Khot in PAINTINDIA, Vol. LXI, N° 4 (04/2011)
[article]
Titre : General information on polyurethane chemistry and its application in coatings Type de document : texte imprimé Auteurs : Anand Khot, Auteur Année de publication : 2011 Article en page(s) : p. 70-76 Langues : Anglais (eng) Catégories : Isocyanates
Monomères
Polyisocyanates
Polyuréthanes
Revêtements bi-composantIndex. décimale : 667.9 Revêtements et enduits Résumé : This article covers general information on polyurethane chemistryand its application in coatings. The article covers the chemistry of different commercially available monomeric isocyanates, polyisocyanates and the coreactants that be used for formulation of two component polyurethane coatings. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11666
in PAINTINDIA > Vol. LXI, N° 4 (04/2011) . - p. 70-76[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 013020 - Périodique Bibliothèque principale Documentaires Disponible
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Titre : High-yield bonds : New polychloroprenes expand areas of application Type de document : texte imprimé Auteurs : R. Musch, Auteur ; N. Schildan, Auteur ; K. Panskus, Auteur Année de publication : 2001 Article en page(s) : p. 17-33 Langues : Américain (ame) Catégories : Adhésifs en phase aqueuse
Bases (chimie)
Colles:Adhésifs
Isocyanates
PolychloroprèneIndex. décimale : 668.3 Adhésifs et produits semblables Résumé : The unique property profile of polychloroprenes (CR) makes these products indispensable in the field of solventborne contact adhesives for a large number of applications. The performance of the bonds can be significantly improved by crosslinking with isocyanates.
Because of mounting ecological requirements and more stringent regulations on occupational health, there is an increasing trend towards the development of solvent-free adhesives based on aqueous alkaline CR dispersions. Here, however, the scope of application is limited as it has not so far been possible to adequately satisfy demands for products for bonding non-absorbent substrates or for high heat resistance.
This article describes new CR dispersions with a modified polymer structure that satisfy the increasingly strict ecological requirements on these modern adhesives in line with the "Responsible care" concept. Used in combination with a new dispersible crosslinking isocyanate that is also suitable for strongly alkaline CR adhesive dispersions and produced by a suitable compounding process, these dispersions open up new areas of application that will be illustrated in examples.Note de contenu : - Polymerization
- Dispercoll C product range
- Use motivation
- Resin study
- Applications fiels
- Furniture
- Wood lamination and construction
- Automotive,shoe
- Test methodsEn ligne : https://drive.google.com/file/d/1tBkkkwwJIfMNHIj5t2axq4Hv8blsFyUt/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=19727
in ADHESIVES AGE > Vol. 44, N° 1 (01/2001) . - p. 17-33[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 001454 - Périodique Bibliothèque principale Documentaires Disponible
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Titre : Hotter performance : Tertiary isocyanate monomer improves thermal properties of adhesives Type de document : texte imprimé Auteurs : Irina Kobylanska, Auteur ; David Ley, Auteur ; Jai Venkatesan, Auteur Année de publication : 2009 Article en page(s) : p. 26-31 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Adhésifs -- Propriétés thermiques
IsocyanatesIndex. décimale : 668.3 Adhésifs et produits semblables Résumé : Use of tertiary isocyanate simplifies production of solvent-free polyurethane dispersions, as viscosity in production can be reduced by heat rather than solvents. Adhesives based on the tertiary isocyanate m-TMXDI combine improved heat activation and heat resistance with greater freedom to modify the fundamental polymer structure. En ligne : https://drive.google.com/file/d/1Inx58e889NiEVnS27F-9I0QjdkLp8o7S/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3334
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 01/2009 (01/2009) . - p. 26-31[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 010994 - Périodique Bibliothèque principale Documentaires Disponible Hydrogen bonding effects on aspartate ester reactions in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 6, N° 1 (03/2009)
[article]
Titre : Hydrogen bonding effects on aspartate ester reactions Type de document : texte imprimé Année de publication : 2009 Langues : Américain (ame) Catégories : Esters
Hydrogène
Isocyanates
Liaisons hydrogène
Polyaspartate
Polyuréthanes
Revêtements:PeintureIndex. décimale : 667.9 Revêtements et enduits DOI : 10.1007/s11998-008-9139-z En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-008-9139-z.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=4843
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 6, N° 1 (03/2009)[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 011246 - Périodique Bibliothèque principale Documentaires Disponible 011271 - Périodique Bibliothèque principale Documentaires Disponible Important isocyanates for coatings / Peter Mischke in EUROPEAN COATINGS JOURNAL (ECJ), N° 3/00 (03/2000)
PermalinkInterfacial studies of crosslinked polyurethanes ; Part I. quantitative and structural aspects of crosslinked near film-air and film-substrate interfaces in solvent-borne polyurethanes / Anneke M. Kaminski in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 69, N° 872 (09/1997)
PermalinkPermalinkIsocyanate-free adhesive technology minimises cure times / Michael Gierlings in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 200, N° 4549 (06/2010)
PermalinkIsocyanate-free Michael addition cured aliphatic topcoats / M. Gessner in COATINGS TECH, Vol. 14, N° 8 (08/2017)
PermalinkIsocyanato et isothiocyanato-halogéno monoboranes et leurs complexes aminés / Habib-Raman Atchekzaï / 1975
PermalinkLow and no-VOC architectural coatings containing ambient curing functional groups / Zhiyu Wang in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 68, N° 852 (01/1996)
PermalinkMethods for improving mar resistance / Snehal Sharad Kamble in PAINTINDIA, Vol. LXIII, N° 7 (07/2013)
PermalinkMethods of identifying aromatic & aliphatic isocyanate / Mukund Hulyalkar in PAINTINDIA, Vol. LXXI, N° 8 (08/2021)
PermalinkMicroencapsulation of isocyanates. Characterization and storage stability of microcapsules in a polyester α, ω-ol / Evelyne Quérat in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 68, N° 854 (03/1996)
PermalinkNew Tin- and mercury-free organometallic catalysts for case urethane applications: new catalysts offer performance characteristics in multiple applications / John Florio in ADHESIVES & SEALANTS INDUSTRY (ASI), Vol. 18, N° 8 (08/2011)
PermalinkNovel versatile oligomer for thermallly, UV-, and ambient curable organic-inorganic hybrid coatings / Tahereh Hayeri in COATINGS TECH, Vol. 20, N° 5 (09-10/2023)
PermalinkPlastiques. Matières de base pour polyuréthannes, polyesters, polyéthers et isocyanates. Appréciation visuelle de la coloration en unités Gardner - Norme NF T 52-151 / Association Française de Normalisation (Paris) / Saint-Denis La Plaine : Association Française de Normalisation (AFNOR) (1979)
PermalinkPolyaspartic : a revolutionary coating technology / Brijesh Mishra in PAINTINDIA, Vol. LXI, N° 6 (06/2011)
PermalinkPolyaspartics : an overview / Ravindra G. Puri in PAINTINDIA, Vol. LXI, N° 2 (02/2011)
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