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Versatile and valuable / Misty Huang in ADHESIVES AGE, Vol. 45, N° 4 (04/2002)
[article]
Titre : Versatile and valuable : The advantages of using isocyanatosilanes in adhesive and sealant applications Type de document : texte imprimé Auteurs : Misty Huang, Auteur ; Patrice Lehmann, Auteur ; Bruce Waldman, Auteur ; Fred Osterholtz, Auteur Année de publication : 2002 Article en page(s) : p. 33-37 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Colles:Adhésifs
Composés aliphatiques
Isocyanates
Joints d'étanchéité
Liants
Mastics
Polyols
Polyuréthanes
Résistance au rayonnement ultraviolet
Résistance aux conditions climatiques
Résistance chimique
SilanesIndex. décimale : 668.3 Adhésifs et produits semblables Résumé : The advantages of silane-modified polymeric binders have been recognized in coatings, adhesives and sealants markets. The increased accessibility of isocyanate silanes to the market will allow this technology to grow further, due to processing simplicity and applicability to a wide range of polymers.
The use of isocyanate silanes and polyols to make precursors for elastomeric sealants generally provides silylated polymers with lower viscosity than that obtained by other methods. easier formulation and mixing is one benefit.
As with conventional polyurethanes, the properties of these SPUR polymers can be tailor-made to range from low modulus to high modulus to meet the demands of different markets. These silane-terminated prepolymers may be used for formulating on-part room temperature moisture-cure sealants or adhesives with identified benefits such as superior adhesion performance, UV stability/weatherability and chemical resistance. Moreover, the characteristic of relatively fast cure makes the isocyanate silane-capped SPUR technology worth examining for insulated glass and automotive windshield sealant applications.
The aliphatic isocyanate groups of Silquest A-Link 35 and Silquest A-Link 25 silanes allow them to be used in the modification of a wide range of polymers that contain functional groups of OH, SH and NH2. The modification process can be carried out in different types of apparatus. The silane-modified polymers provide the enhanced mechanical properties, excellent adhesion and improved high-fail temperature in shear that can especially beneficial to hot melt adhesives.Note de contenu : - Preparation of sealants based on SPUR prepolymers
- Property and performance testing
- A simple process for making silane-modified polymersPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=20001
in ADHESIVES AGE > Vol. 45, N° 4 (04/2002) . - p. 33-37[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 001470 - Périodique Bibliothèque principale Documentaires Disponible Water affinity guided tunable superhydrophobicity and optimized wettability of selected natural minerals / Hande Alptekin in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 16, N° 1 (01/2019)
[article]
Titre : Water affinity guided tunable superhydrophobicity and optimized wettability of selected natural minerals Type de document : texte imprimé Auteurs : Hande Alptekin, Auteur ; Emre Arkan, Auteur ; Cebrail Özbek, Auteur ; Mustafa Can, Auteur ; Amir Farzaneh, Auteur ; Mücahit Sütçü, Auteur ; Salih Okur, Auteur ; Andrew J. Cobley, Auteur Année de publication : 2019 Article en page(s) : p. 199-211 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Caractérisation
Greffage (chimie)
Hydrophobie
Mouillabilité
Revêtements protecteurs
Silanes
Surfaces (technologie)
Terre de diatoméeIndex. décimale : 667.9 Revêtements et enduits Résumé : We present a feasible methodology to prepare nonwetting surfaces from natural minerals. Various ranges of silanes were used for the surface grafting, and the best customization was achieved by monochlorosilane. Water affinity analysis of surface functionalized diatomaceous earth was the key aspect of loading tunable wettability on the particle surface. Covalent attachment was confirmed via X-ray photoelectron spectroscopy (XPS), while thermogravimetric analysis, nitrogen adsorption isotherms, and contact angle measurements were used for the evaluation of grafting density and other fundamental features of hydrophobic particles. Diatomaceous earth was chosen as a prototype to develop an efficient strategy for surface modification which can be apposite to another natural particle, the so-called talc, which represents dichotomic performance to water. The present study paves the way for a new approach that can be employed to any proper inherent texture for the production of superhydrophobic powders. Note de contenu : - Materials
- Synthesis of superhydrophobic diatomaceous earth
- Characterization of samples
DOI : 10.1007/s11998-018-0115-y En ligne : https://link.springer.com/article/10.1007/s11998-018-0115-y Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31985
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 16, N° 1 (01/2019) . - p. 199-211[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 20659 - Périodique Bibliothèque principale Documentaires Disponible