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Unique diol resin for improved performance of 2-component polyurethane floor coatings / John Florio in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 206, N° 4626 (11/2016)
[article]
Titre : Unique diol resin for improved performance of 2-component polyurethane floor coatings Type de document : texte imprimé Auteurs : John Florio, Auteur ; David Switala, Auteur ; Richard Shain, Auteur ; Michel Hourani, Auteur Année de publication : 2016 Article en page(s) : p. 32-35 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Composés aliphatiques
Composés aromatiques
Diols
Groupe hydroxyle
Polyisocyanates
Polyuréthanes
Réactions chimiques
Résistance chimique
Revêtements -- Propriétés mécaniques:Peinture -- Propriétés mécaniques
Revêtements bi-composant:Peinture bi-composant
Revêtements de sols:Peinture de sols
Vernis bi-composantIndex. décimale : 667.9 Revêtements et enduits Résumé : A 100% active diol modifying resin designed to enhance the performance of 2-component polyurethane coatings has been developed.
Polyurethane floor coatings require good abrasion resistance, hardness, chemical resistance and stain resistance. They also require good mechanical properties like tensile strength, hardness, ftexibility and tear resistance. A challenge for polyurethane coating formulators is to develop systems that meet these requirements with resin systems that have low viscosities without the use of volatile solvents.
A unique 100% active diol modifying resin designed to enhance the performance of 2-component (2K) polyurethane coatings has been developed. Four 100% non-volatile floor coating studies will be reviewed demonstrating the effect of modifying aromatic and aliphatic polyurethane systems. This diol modifying resin helps to produce films with higher tensile strength, elastic modulus, better abrasion resistance, higher hardness and improved chemical resistance versus the control formulations.Note de contenu : - PRIMARY HYDROXYL GROUPS AND REACTIVITY WITH POLYISOCYANATES
- EXPERIMENTAL : Experiment I. solventless aromatic clearcoat study - Experiment II. Solventless aromatic clearcoat study - Experiment III. Solventless aliphatic clearcoat study - Experiment IV. Solventless aliphatic filled studyEn ligne : https://drive.google.com/file/d/1L4fY8eHU6Gwi2UbFOHXIhzDFbFlxuFig/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27362
in POLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 206, N° 4626 (11/2016) . - p. 32-35[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 18474 - Périodique Bibliothèque principale Documentaires Disponible Unparalleled high quality : 2K PU coatings for auto refinish & transportation vehicles / Anup Phalke in PAINTINDIA, Vol. LXI, N° 11 (11/2011)
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Titre : Unparalleled high quality : 2K PU coatings for auto refinish & transportation vehicles Type de document : texte imprimé Auteurs : Anup Phalke, Auteur Année de publication : 2011 Article en page(s) : p. 82-86 Langues : Anglais (eng) Catégories : Automobiles -- Revêtements:Automobiles -- Peinture
Polyuréthanes
Revêtements bi-composant
Revêtements organiquesIndex. décimale : 667.9 Revêtements et enduits Résumé : Coatings for automotive refinishing should show the same high quality as OEM coatings. As OEM coatings are constantly improved and fine-tuned, refinishes need to keep up with their development. In addition, refinishing systems should be environmentally friendly and easy to use. Bayer MaterialScience provides a wide range of solventborne and waterborne systems for that purpose. They not only meet the processing requirements very well, but their quality matches those of finished OEM coatings as well. Two-component polyurethane systems are the state of the art technology for automotive refinishing. Aliphatic polyisocyanates and the choice for high performance two-component clear coat, primer and filler systems. Note de contenu : - Most important innovations in car refinish coating market
- Paint is not always just paint !
- Weathering
- Fullfill your dreams with easy savings
- Why by satisfied with less than the best ? : Aliphatic polyisocyanates : quality by nature
- Technologies for automotive refinish systems
- Putties based on unsaturated polyesters
- Two-component polyurethane primers and fillers
- Two-component polyurethane topcoat
- Basecoats and two-component polyurethane clear coats
- Innovation to satisfy the market trends for automotive refinish systemsPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=13824
in PAINTINDIA > Vol. LXI, N° 11 (11/2011) . - p. 82-86[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 13562 - Périodique Bibliothèque principale Documentaires Disponible Use of spiro-orthosilicates as blocked polyols/reactive diluents in high-solid PUR clear coats for car refinish applications / K. J. van der Berg in SURFACE COATINGS INTERNATIONAL. PART B : COATINGS TRANSACTIONS, Vol. 89, B4 (12/2006)
[article]
Titre : Use of spiro-orthosilicates as blocked polyols/reactive diluents in high-solid PUR clear coats for car refinish applications Type de document : texte imprimé Auteurs : K. J. van der Berg, Auteur ; R. van Oorschot, Auteur ; L. G. J. van der Ven, Auteur Année de publication : 2006 Article en page(s) : p. 285-291 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Automobiles -- Vernis
Diluants
Haut extrait sec
Polyols
Polyuréthanes
Réseaux polymères
Résistance au lavage
Revêtements bi-composant
Revêtements organiques
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).
Spiro-orthosilicatesIndex. décimale : 667.9 Revêtements et enduits Résumé : Spiro-orthosilicates, prepared from tetraethyl orthosilicate and a diol (2-butyl-2-ethyl-1,3-propanediol or 2-ethyl-1,3-hexanediol), are used as latent reactive diluents in two-pack polyurethane coatings. A fast curing and long pot life have been achieved because of the latency in the can. Spiroorthosilicates hydrolyse with moisture into a diol and a polysiloxane. Kinetic data on hydrolysis and curing are given. The formation of polysiloxane has been characterised by solid-state29Si NMR. The film properties obtained are excellent. The spiro-orthosilicates-based films are tested as clear coats for car refinishes. In particular, a very good car wash resistance has been obtained, which is combined with other properties, also at a good, competitive level. Note de contenu : - Synthesis and stability of spiro-orthosilicates
- Paint formulation and curing
- Paint properties of aSOS-based high-solid clear coat
- Table 1 : DMA measurements of SOS-based HS CC compared with moisture cure clear coat and a state-of-the-art clear coatDOI : 10.1007/BF02765580 En ligne : https://link.springer.com/content/pdf/10.1007/BF02765580.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5269
in SURFACE COATINGS INTERNATIONAL. PART B : COATINGS TRANSACTIONS > Vol. 89, B4 (12/2006) . - p. 285-291[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 006010 - Périodique Bibliothèque principale Documentaires Disponible Using "high performance two-component waterborne polyurethane" wood coatings / Michael J. Dvorchak in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 69, N° 866 (03/1997)
[article]
Titre : Using "high performance two-component waterborne polyurethane" wood coatings Type de document : texte imprimé Auteurs : Michael J. Dvorchak, Auteur Année de publication : 1997 Article en page(s) : p. 47-52 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Bois
Bois -- Revêtements
Formulation (Génie chimique)
Liants
Mélanges (chimie)
Polyuréthanes
Projection de matériaux
Revêtements bi-composant
Revêtements en phase aqueuse:Peinture en phase aqueuse
Taille des particulesIndex. décimale : 667.9 Revêtements et enduits Résumé : Recent developments in coatings technology have resulted in two-component waterborne polyurethane wood coating formulations which offer the benefits of traditional solvent-borne systems ; however, these 2K WB/PUR systems offer significant reductions over solvent-borne systems in VOCs and HAPs, meeting stringent environmental regulations. In addition, 2K WB/ PUR systems meet specifications for finishes for kitchen cabinets, office, laboratory, and household furniture. This paper looks at the differences between solvent-borne polyurethane systems (2K SOV/PUR) and 2K WB/PUR systems. Also discussed are physical properties, formulation parameters, application techniques, and industrial hygiene issues. Note de contenu : - Chemistry
- Chemistry in the solution
- Chemistry in the film
- Variability in system performance via formulating techniques
- mixing and particle size
- Batch mixing
- Two-component mixing
- Electrostatic application of two-component waterborne polyurethanes
- Industrial hygiene
- Loss of hexamethylene diisocyanate monomer in the paint solutionPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18107
in JOURNAL OF COATINGS TECHNOLOGY (JCT) > Vol. 69, N° 866 (03/1997) . - p. 47-52[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 003535 - Périodique Bibliothèque principale Documentaires Disponible UV cure automotive refinish : clearcoats and primers at the speed of photons / Michael J. Dvorchak in COATINGS TECH, Vol. 19, N° 9 (11-12/2022)
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Titre : UV cure automotive refinish : clearcoats and primers at the speed of photons Type de document : texte imprimé Auteurs : Michael J. Dvorchak, Auteur Année de publication : 2022 Article en page(s) : p. 24-35 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Automobiles -- Revêtements:Automobiles -- Peinture
Automobiles -- Vernis
Formulation (Génie chimique)
Primaire (revêtement)
Revêtement monocomposant
Revêtements -- Séchage sous rayonnement ultraviolet
Revêtements bi-composant
Revêtements organiquesIndex. décimale : 667.9 Revêtements et enduits Résumé : Over the past decade, the automotive-refinish industry has been forced to look at innovative technologies to reduce volatile organic compound (VOC) content and hazardous air pollutants (HAPs) while providing a rapid return to service of the consumer's vehicle.
UV-A-cured one-component (1K) autorefinish primers were first introduced in the mid-1990s. UV-A clearcoats were subsequently introduced in the late 1990s.
Materials have continued to be developed and pushed to mimic the classic two-component (2K) solvent-based polyurethanes (PURs) ; however, slow acceptance by the auto-refinish market over the past two decades is indicative of a market that is difficult to change.
The automotive-refinish coatings market is forecast to surpass U.S. $6.3 billion globally in 2021. This market is expected to increase by 5.4% CAGR between 2021 and 2031. The main technology types are solventborne, waterborne, and UV cure.
The classic coating layers are primers, basecoats, topcoats, and clearcoats. A specific parameter in the refinish area that must be addressed is the bottleneck of a 2-hour cure for the primer before it can be sanded. Current UV-cure primers can be sanded within 2 minutes. The need to lower VOCs and volatile HAPs (VHAPs) is among the current constraints for all technologies. A hurdle that was recently cleared in the UV-cure sector is the price barrier for UV light equipment. Reports for the market have UV LED units priced under $1,000.2 This market continues to consolidate and will be required to decrease refinishing speeds to remain competitive.
This article will review the history of the UV-cured 1K and 2K auto-refinish market and formulations for primers and clearcoats. It will also attempt to look at current UV-cured 1K and 2K auto-refinish primers and clearcoats in the global market, new formulations, and new developments in UV equipment.Note de contenu : - CHANGES IN THE AUTOMOTIVE OEM AND REFINISH MARKETS
- INTRODUCTION OF UV-A-CURABLE AUTO REFINISH : Early attempts to develop a UV refinish clearcoat - Early patents on UV-A cure auto-refinish primers - Automotive OEM technical paper on UV auto-refinish clearcoats
- PRODUCTION AND INNOVATION IN THE MARKET : Combinatorial chemistry approach to identify the best non-air-inhibited formulation - Mimicking a 2K polyurethane clearcoat with a 1K-A-cure clearcoat via Tg values - 2K UV-A-curable clearcoat that uses a photo latent amine catalyst - 1K and 2K UV-A-curable clearcoat - 1K UV-A clearcoat and primer field study to evaluate long-term performance - Current RADTECH automotive refinish project - Continued development of a 1K UV-A cure clearcoat
- TODAY'S UV-A CURE LIGHT SOURCES FOR THE 1K UV-A-CURE AUTOMOTIVE-REFINISH MARKET
- FORECAST FOR THE UV-A-CURABLE REFINISH MARKET
- NUMEROUS TECHNIQUES HAVE BEEN USED TO MITIGATE OXYGEN INHIBITION
- Table 1 : Methods to mitigate oxygen inhibition showing advantages and disadvantages
- Table 2 : Concept of matching the Tgs of traditional 2K clearcoat with a UV-A-cure clearcoat
- Table 3 : The relationship of cure for the systems tested with pendulum hardness, reported in seconds
- Table 4 : Current automotive refinish UV-A products in the market
- Table 5 : Current UV light sources available to tha automotive industryEn ligne : https://drive.google.com/file/d/1gQnzdJrkq6O-eG3SrHqeCakEFjpIbBmk/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38534
in COATINGS TECH > Vol. 19, N° 9 (11-12/2022) . - p. 24-35[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 23758 - Périodique Bibliothèque principale Documentaires Disponible Vers un système bicomposant complet in GALVANO ORGANO, N° 809 (03/2012)
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