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Silane-terminated polyurethanes for adhesives and sealants / Evelyn Peiffer in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 200, N° 4546 (03/2010)
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Titre : Silane-terminated polyurethanes for adhesives and sealants Type de document : texte imprimé Auteurs : Evelyn Peiffer, Auteur ; Mathias Matner, Auteur Année de publication : 2010 Article en page(s) : p. 29-30 Langues : Anglais (eng) Catégories : Assemblages collés
Colles:Adhésifs
Isocyanates
Polyuréthanes
SilanesIndex. décimale : 668.3 Adhésifs et produits semblables Résumé : Benefits provided with silane-terminated polyurethanes compared with traditional isocyanate crosslinking. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=10092
in POLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 200, N° 4546 (03/2010) . - p. 29-30[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 012359 - Périodique Bibliothèque principale Documentaires Disponible Silica-embedded polyurea microspheres with rough surface for matte leather finishing / Liang Jia in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXVII, N° 5 (05/2022)
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Titre : Silica-embedded polyurea microspheres with rough surface for matte leather finishing Type de document : texte imprimé Auteurs : Liang Jia, Auteur ; Li Wang, Auteur ; Jing Li, Auteur ; Jun Xiang, Auteur ; Yi Chen, Auteur ; Haojun Fan, Auteur Année de publication : 2022 Article en page(s) : p. 184-194 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Cuirs et peaux -- Finition
Microsphères
Polymères en émulsion
Polyurée
Polyuréthanes
Rugosité
SiliceLa silice est la forme naturelle du dioxyde de silicium (SiO2) qui entre dans la composition de nombreux minéraux.
La silice existe à l'état libre sous différentes formes cristallines ou amorphes et à l'état combiné dans les silicates, les groupes SiO2 étant alors liés à d'autres atomes (Al : Aluminium, Fe : Fer, Mg : Magnésium, Ca : Calcium, Na : Sodium, K : Potassium...).
Les silicates sont les constituants principaux du manteau et de l'écorce terrestre. La silice libre est également très abondante dans la nature, sous forme de quartz, de calcédoine et de terre de diatomée. La silice représente 60,6 % de la masse de la croûte terrestre continentale.Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : A type of polyurea microspheres with rough surfaces and different sizes (1-12 μm), which was used for waterborne polyurethane matte leather coating, were prepared by precipitation polymerization in H 2 O/acetonitrile system, using isophorone diisocyanate as polymerized monomer, 2,4-diaminobenzenesulfonic acid sodium salt as hydrophilic monomer and nano-SiO 2 as surface roughener. The effect of the loading of isophorone diisocyanate and 2,4-diaminobenzenesulfonic acid sodium salt, the volume ratio of H 2 O/acetonitrile and the addition stage of nano-SiO 2 on the particle size and surface roughness were investigated so as to achieve the excellent matte effect of the coating. The results indicated that the adding of hydrophilic monomer can reduce the particle size of microspheres and improve its re-dispersibility in water, while the increase of the proportion of acetonitrile in the mixed solvent and the loading of polymerized monomer can enlarge the size of the polyurea microspheres. As surface roughener, with the increase of nano-SiO 2 loading, the surface roughness and the particle size of microspheres increase. When nano-SiO 2 is added at the stage of the reaction system getting turbid, the maximum surface roughness of polyurea microspheres can be achieved. Polyurea microspheres with particle size (1-2 μm) and high surface roughness have better matting effect, and the gloss of the prepared waterborne polyurethane coating can be adjusted to less than 1.6° (60°-incident Angle). Note de contenu : - EXPERIMENTAL : Materials - Preparation of polyurea microspheres with different surface roughness - Preparation of WPU matte coating - Characterization
- RESULTS AND DISCUSSION : Structural of polyurea microspheres - Influence of MPDSA-Na loading on microsphere size and its re-dispersibility - Influence of H2O/AN volume ratio on microsphere size - Influence of IPDI loading on microsphere size - Effect of nano-SiO2 loading on surface roughness of polyurea microspheres
- Influence of nano-SiO2 addition stage on surface roughness of polyurea microspheres - Influence of different polyurea microspheres on the gloss of WPU coating
- Table 1 : Dn and Dn/Dw of polyurea microspheres at different MPDSA-Na loading
- Table 2 : Dn and Dn/Dw of polyurea microspheres at differentH2O/AN
- Table 3 : Dn and Dn/Dw of polyurea microspheres at different IPDI loading
- Table 4 : Dn and Dn/Dw of polyurea microspheres at different nano-SiO2 loading
- Table 5 : The polyurea microspheres with different sizes and size distributionDOI : https://doi.org/10.34314/jalca.v117i5.4913 En ligne : https://drive.google.com/file/d/11yBWz4C1N2hxkNkOsI_QcjBpR8gbfic2/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37568
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CXVII, N° 5 (05/2022) . - p. 184-194[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 23398 - Périodique Bibliothèque principale Documentaires Disponible Silicone-enabled polyurethane coatings / Gerald Witucki in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 197, N° 4516 (09/2007)
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Titre : Silicone-enabled polyurethane coatings Type de document : texte imprimé Auteurs : Gerald Witucki, Auteur Année de publication : 2007 Article en page(s) : p. 34-38 Langues : Anglais (eng) Catégories : Polymères aliphatiques
Polyuréthanes
Revêtements -- Additifs:Peinture -- Additifs
SiliconesLes silicones, ou polysiloxanes, sont des composés inorganiques formés d'une chaine silicium-oxygène (...-Si-O-Si-O-Si-O-...) sur laquelle des groupes se fixent, sur les atomes de silicium. Certains groupes organiques peuvent être utilisés pour relier entre elles plusieurs de ces chaines (...-Si-O-...). Le type le plus courant est le poly(diméthylsiloxane) linéaire ou PDMS. Le second groupe en importance de matériaux en silicone est celui des résines de silicone, formées par des oligosiloxanes ramifiés ou en forme de cage (wiki).Index. décimale : 667.9 Revêtements et enduits Résumé : Based on the performance results, Dow Corning 30 Additive is our best recommendation for a siloxane slip additive is an aliphatic, solventborne polyurethane coating. Dow Corning 29 Additive is also a good performer, but recoatability issues could arise. Note de contenu : - TABLES : 1. Additive candidates - 2. Results 1. - 3. Defect description - 4. Rating scale En ligne : https://drive.google.com/file/d/1eTeHjEMllG6NjhVKThZMIkAYad_5Ijbk/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27303
in POLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 197, N° 4516 (09/2007) . - p. 34-38[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 008248 - Périodique Bibliothèque principale Documentaires Disponible 008311 - Périodique Bibliothèque principale Documentaires Disponible Silyl-containing polyurethanes that selectively disassemble with fluoride salts / Erick B. Iezzi in COATINGS TECH, Vol. 17, N° 1 (01/2020)
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Titre : Silyl-containing polyurethanes that selectively disassemble with fluoride salts Type de document : texte imprimé Auteurs : Erick B. Iezzi, Auteur ; Eugène Camerino, Auteur ; Grant C. Daniels, Auteur ; James H. Wynne, Auteur Année de publication : 2020 Article en page(s) : p. 26-32 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Fluorures
Polymères -- Détérioration
Polymères à silane modifié
Polyuréthanes
Revêtements -- Détérioration
Revêtements organiquesIndex. décimale : 667.9 Revêtements et enduits Résumé : Crosslinked networks, such as two-component polyurethanes, are used for numerous commercial applications because of their unique mechanical, thermal, and hydrocarbon resistant properties. However, the covalently bonded linkages in these materials are irreversible, which renders them difficult to degrade and destroy unless hazardous chemicals, mechanical abrasion, or thermal treatments are employed. Many of these treatments are labor-intensive, expensive, or present environmental and health concerns. To address these issues, we have developed a novel silyl-based technology that imparts degradable capabilities to crosslinked polyurethane networks, such as coatings. These silyl-containing polyurethanes are thermally stable and highly crosslinked, yet they will disassemble on demand via cascading bond cleavage when exposed to a selective, mild, and environmentally friendly fluoride salt solution. Furthermore, these polyurethanes are resistant to disassembly with strong acid and base solutions, which demonstrates their selectivity and robustness compared to other degradable crosslinked networks. Note de contenu : - Fig. 1 : Removal of the crosslinked polyurethane coating on Navy Aircraft using a methylene chloride-based paint stripper and mechanical sanders
- Fig. 2 : Illustration of a brick house degrading into powder upon contact with rain droplets
- Fig. 3 : Structures of silyl-centered diols, silyl-centered triol, and isocyanate crosslinkers used to form crosslinked polyurethane networks
- Fig. 4 : Illustrations of silyl-containing and non-silyl-containing polyurethane networks, where the silicon atoms of the silyl-containing polyurethanes are highlighted in red and the blue expansion boxes show a close-up of network aliphatic chains and carbamate linkages
- Fig. 5 : Mechanisms of disassembly with fluoride ion for silyl-containing polyurethane 8 and silyl-containing polyurethane 9, and illustration of partially disassembled network 8, where green indicates activated (i.e., cleaved) silyl groups, red indicates non-activated silyl gruops, and aliphatic amine trimers are shown as all black
- Fig. 6 : Time-lapse images of polyurethane 8 immersed in THF and 1.0 MTBAF in THF for five days at room temperature. Polyurethane 8 was unaffected by the THF, yet completely disassembled within five days of exposure in the fluoride salt solution. The networks are outlined in red for visual indciation
- Table 1 : Average Tg of networks after static immersion in solutions at room temperature
- Table 2 : Average Tg of networks after static immersion in solutions of acetone and PM acetateEn ligne : https://drive.google.com/file/d/1_QRMW7CVrk_cwMUcC3GPnL36BC0rOEuQ/view?usp=share [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33601
in COATINGS TECH > Vol. 17, N° 1 (01/2020) . - p. 26-32[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 21512 - Périodique Bibliothèque principale Documentaires Disponible
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Titre : Silylated resin systems : New technology for high-bake industrial protective coatings Type de document : texte imprimé Auteurs : Dmitry Chernyshov, Auteur Année de publication : 2022 Article en page(s) : p. 26-30 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Anticorrosion
Coil coatings
Flexion (mécanique)
Polymères à silane modifié
Polyuréthanes
Revêtements -- Finition
Revêtements -- Propriétés mécaniques
Revêtements anti-graffitis
Revêtements organiquesIndex. décimale : 667.9 Revêtements et enduits Résumé : As the paints and coatings industry is moving towards more sustainable and productive technologies, the application of organic resins bearing various alkoxysilane -OSi(OR)x reactive groups is gaining a lot of traction. In this article we discuss how silylated resin technol-ogy can be used to produce highly durable coil coatings with improved bending flexibility, surface aspect and corrosion resistance. Note de contenu : - Experimental
- High-speed cure coatings with long-term stability
- Pendulum hardness, T-bend and mechanical integrity
- Silylated resin technology gives high corrosion resistance
- Blocked-acid catalyst offers good viscosity stability
- Anti-graffiti, surface properties
- Table 1 : Composition of experimental 1K coil coating white topcoatEn ligne : https://drive.google.com/file/d/1jbpjjCKcIiwVnVp2SozroB4MvYc7FRXw/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38026
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 9 (09/2022) . - p. 26-30[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 23594 - Périodique Bibliothèque principale Documentaires Disponible Silylated urethane polymers enhance properties of construction sealants / Ta-Min Feng in ADHESIVES AGE, Vol. 38, N° 4 (04/1995)
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PermalinkSimultaneous acid exposure and erosive particle wear of thermoset coatings / Victor Buhl Møller in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 15, N° 3 (05/2018)
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PermalinkPermalinkPermalinkSmall particles for the protection of metal / Peter Greenwood in EUROPEAN COATINGS JOURNAL (ECJ), (12/2023)
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PermalinkA small-scale waterjet test method for screening novel foul-release coatings / Chin-Sing Lim in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 12, N° 3 (05/2015)
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PermalinkSmart textiles : monitoring, sensing and heating technology integrated in fabrics / Wim Christiaens in TECHNICAL TEXTILES, Vol. 67, N° 1 (2023)
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PermalinkSolid bonding as treatment process to prepare multi-interface sound/heat insulation material using waste cattle hair / Wenhua Yang in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 105, N° 4 (07-08/2021)
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PermalinkSolutions for polyurethane can coatings / Guido Streukens in EUROPEAN COATINGS JOURNAL (ECJ), N° 7-8 (07-08/2021)
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PermalinkSolutions for retortable packaging inks / Dhara Metla in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 199, N° 4539 (08/2009)
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PermalinkSolutions for the mobility of tomorrow / Guido Löhr in ADHESION - ADHESIVES + SEALANTS, Vol. 20, N° 4/2023 (2023)
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PermalinkSolvent free aliphatic polyisocyanates / Uwe Wustmann in EUROPEAN COATINGS JOURNAL (ECJ), N° 11/97 (11/1997)
PermalinkSolvent-free rigid 2K polyurethanes for protective coatings / Matthias Wintermantel in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 204, N° 4592 (01/2014)
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PermalinkSolventless polyurethane adhesive a growing technology / Prem Kumar Nautiyal in PAINTINDIA, Vol. LXV, N° 8 (08/2015)
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PermalinkSolving challenges for polyurethane sealants / Tushar Trivedi in ADHESIVES & SEALANTS INDUSTRY (ASI), Vol. 26, N° 7 (07/2019)
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