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AEROSIL fumed silica and Dynasylan silane specialties in adhesives and sealants / Juergen Fritz in DOUBLE LIAISON, N° 603 (03/2015)
[article]
Titre : AEROSIL fumed silica and Dynasylan silane specialties in adhesives and sealants Type de document : texte imprimé Auteurs : Juergen Fritz, Auteur Année de publication : 2015 Article en page(s) : p. 14-17 Langues : Français (fre) Catégories : Adhésion
Colles:Adhésifs
Joints d'étanchéité
Mastics
Mastics -- Propriétés mécaniques
Promoteurs d'adhésion
Réticulation (polymérisation)
Réticulation à l'humidité
Silanes
Silanes organofonctionnels
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.
Traîtements de surfaceIndex. décimale : 668.3 Adhésifs et produits semblables Note de contenu : - Linkage of the primary particles
- Characteristics of AEROSIL fumed silica
- Properties
- Transparency
- Dynasylan
- A chemical link
- More effects
- High performancePermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=23334
in DOUBLE LIAISON > N° 603 (03/2015) . - p. 14-17[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 17012 - Périodique Bibliothèque principale Documentaires Disponible 17268 - Périodique Bibliothèque principale Documentaires Disponible Chemical durability of silylated polyurethane-based formulations / Patrice Lehmann in ADHESIVES AGE, Vol. 41, N° 1 (01/1998)
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Titre : Chemical durability of silylated polyurethane-based formulations Type de document : texte imprimé Auteurs : Patrice Lehmann, Auteur ; Robert R. Johnston, Auteur Année de publication : 1998 Article en page(s) : p. 28-32 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Adhésion
Formulation (Génie chimique)
Immersion
Joints d'étanchéité
Mastics
Polyuréthanes
Produits d'étanchéité
Résistance chimique
Silanes organofonctionnels
solvantsIndex. décimale : 668.3 Adhésifs et produits semblables Résumé : Witco Silquest silanes and SPUR technology are designed to allow for tailor-made prepolymers suitable for low to high modulus formulations with identified benefits such as improved UV stability/weatherability and adhesion performance.This study of chemical resistance leads to the conclusion that the inherent benefits of durable siloxane bonding -well-known and anticipated for various coatins applications- extends to silylated polyurethane-(SPU)based sealants. Apparently the synergy of the siloxane crosslinking and the polyurethane chemistry enhances the chemical resistance of these kinds of SPU-based sealants products. The model sealant formulations SPU A and SPU B revealed integrity towards chemical attack when compared to representative commercially available sealants. Immersion in solvents such as diesel fuel, transmission oil and anti-freeze for prolonged periods of time, even at elevated temperature, resulted in minimal changes in mechanical properties when compared to all other representative candidates types of sealants. This result make them particularly suitable for the automotive area such as engine compartment applications.
Whereas all other sealants revealed at last one solvent as particularly problematic, the SPU-based products show the greatest range of chemical resistance over all mechanical properties measured. Generally all these sealants excluding SPU-based products had a significant problem maintaining integrity of modulus.
Sealants based on SPUR technology show the best performance in regard to chemical resistance as a function of temperature.
To further verify these findings other SPU-base laboratory sealants are being added to this evaluation program. This work will extend to adhesion performance tested afeter solvent exposure. The synergy of both improved adhesion performance and good chemical resistance is expected to result in further meaningful benefits.Note de contenu : - EXPERIMENTAL : Preparation of silylated polyurethane resins - Sealant preparation
- COMMERCIALLY AVAILABLE SEALANT COMPARISONS :
- SAMPLE PREPARATION AND TESTINGEn ligne : https://drive.google.com/file/d/1tZSIwEZCvTS1ucYn15auZbClAZKTTKga/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=20135
in ADHESIVES AGE > Vol. 41, N° 1 (01/1998) . - p. 28-32[article]Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 001084 - Périodique Bibliothèque principale Documentaires Exclu du prêt
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Titre : Cool solutions : Waterborne sol-gel metal pretreatment system cures at low temperatures Type de document : texte imprimé Auteurs : Philipp Albert, Auteur Année de publication : 2010 Article en page(s) : p. 32-37 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Anticorrosifs
Antioxydants
Métaux -- Revêtements protecteurs
Métaux -- Revêtements:Métaux -- Peinture
Silanes organofonctionnels
Sol-gel, ProcédéIndex. décimale : 667.9 Revêtements et enduits Résumé : Waterborne sol-gel systems based on organofunctional silanes offer an environmentally-friendly alternative to hazardous traditional metal pretreatment systems. Sol-gel films can themselves improve resistance to oxidation and corrosion or can enhance the performance of coatings applied over them. A new sol-gel system can beused even where low-temperature curing is required. En ligne : https://drive.google.com/file/d/14em7gGNGYi9gjjnUdhjD6YifMn_QvtdW/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8561
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 03/2010 (03/2010) . - p. 32-37[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 012005 - Périodique Bibliothèque principale Documentaires Disponible Crosslinking waterborne coatings with bipodal silanes for improved corrosion protection performance / Jacob D. Shevrin in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 209, N° 4654 (09/2019)
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Titre : Crosslinking waterborne coatings with bipodal silanes for improved corrosion protection performance Type de document : texte imprimé Auteurs : Jacob D. Shevrin, Auteur ; Sheba D. Bergman, Auteur Année de publication : 2019 Article en page(s) : p. 31-36 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Anticorrosifs
Anticorrosion
Essais accélérés (technologie)
Formulation (Génie chimique)
Métaux -- Revêtements protecteurs
Réticulation (polymérisation)
Revêtements en phase aqueuse -- Additifs
Silanes organofonctionnelsIndex. décimale : 667.9 Revêtements et enduits Résumé : The authors discusses waterborne silane technology and its impact on corrosion resistance properties in a coating.
As waterborne silane technology continues to gain interest as an environmentally friendly alternative to well-established corrosion protection technology, investigations into performance-enhancing additives are crucial for supporting this market growth.
If can be concluded that organofunctional bipodal silanes are viable performance-enhancing additives in waterborne corrosion protection systems due to the increase in hydrophobicity, crosslinking density and surface passivation that these materials can provide. ln particular, the waterborne organofunctional silanol system with colloidal silica and organofunctional bipodal silane additives exhibited the best corrosion resistance in neutral salt spray testing, the best alkaline resistance in alkaline testing, and the highest impedance during EIS testing. However, it is important to note that adding in an organofunctional bipodal silane into a room temperature cured waterborne organofunctional silanol coating did not outperform a thermally cured waterborne organofunctional silanol coating without organofunctional bipodal silane additives.
The authors discusses waterborne silane technology and its impact on corrosion resistance properties in a coating.
While contact angle measurements, salt spray testing, alkaline resistance testing and EIS data support this claim of increased corrosion resistance with the use of organofunctional bipodal silane additives, further research is necessary to understand the complete scope of waterborne silane technology and its interactions with organofunctional bipodal silanes.
Additional experimentation, including outdoor weatherability testing in real life conditions, is underway to better understand this technology in the hope of further improving the performance, affordability and reliability of waterborne silane coatings for corrosion resistance applications.Note de contenu : - EXPERIMENTAL METHODS : Materials - Formulation preparation - Cleaning and application procedures - Testing procedures
- RESULTS AND DISCUSSION : Surface contact angle analysis - Neutral salt spray testing - Alkaline resistance testing - Electrochemical impedance spectroscopy.
- Table : Ingredients for waterborne coatings WB1-WB5 (weight in grams)En ligne : https://drive.google.com/file/d/1T8G1vYU9OkeErtzSNwIsLN49qBs9CldH/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32919
in POLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 209, N° 4654 (09/2019) . - p. 31-36[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 21175 - Périodique Bibliothèque principale Documentaires Disponible Effect of a coupling agent on the adhesion of paint to timber / P. W. O'Leary in SURFACE COATINGS INTERNATIONAL. PART B : COATINGS TRANSACTIONS, Vol. 89, B4 (12/2006)
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Titre : Effect of a coupling agent on the adhesion of paint to timber Type de document : texte imprimé Auteurs : P. W. O'Leary, Auteur Année de publication : 2006 Article en page(s) : p. 321-326 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Arrachement (matériaux)
Bois -- Revêtements:Bois -- Peinture
Essais dynamiques
Promoteurs d'adhésion
Réaction de couplage
Silanes organofonctionnelsIndex. décimale : 667.9 Revêtements et enduits Résumé : A method of treating timber before applying a coating has been developed and tested. An organofunctional silane coupling compound was found that was capable of reacting and forming bonds with both wood and a range of coatings. Wet and dry adhesion strength between a range of coatings and wood has been determined by the direct pull-off test under a variety of test conditions. The data presented show how the bridging of the interface between wood and coating can, with some coatings, improve not only the initial bond strength but also provide significantly higher wet adhesion strength and long-term bond durability. Note de contenu : - INTRODUCTION : Pre-treatment - Adhesion testing
- METHODOLOGY : Coatings - Coupling agent - Adhesion testing - Cyclical testing - Pre-weathered and natural exposure panels
- RESULTS AND DISCUSSION : Laboratory adhesion tests - High humidity cyclical test - Natural weathering - Pre-weathered substrateDOI : 10.1007/BF02765584 En ligne : https://link.springer.com/content/pdf/10.1007/BF02765584.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5273
in SURFACE COATINGS INTERNATIONAL. PART B : COATINGS TRANSACTIONS > Vol. 89, B4 (12/2006) . - p. 321-326[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 006010 - Périodique Bibliothèque principale Documentaires Disponible PermalinkInnovative crosslinkers / Florian Degenhart in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 202, N° 4575 (08/2012)
PermalinkNovel hydrolytically stable silane additives for improving the performance of waterborne acrylic roof coatings / Jacob D. Shevrin in COATINGS TECH, Vol. 18, N° 9 (09/2021)
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