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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 A versatile, high-performance polyol chemistry for broad industrial market use / Jamie Dziczkowski in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 208, N° 4646 (11/2018)
[article]
Titre : A versatile, high-performance polyol chemistry for broad industrial market use Type de document : texte imprimé Auteurs : Jamie Dziczkowski, Auteur ; Sandra Case, Auteur ; Gianluigi Cassin, Auteur ; Jeremy Lizotte, Auteur ; Geoff Webster, Auteur Année de publication : 2018 Article en page(s) : p. 20-25 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Automobiles -- Revêtements
Automobiles -- Revêtements:Automobiles -- Peinture
Automobiles -- Vernis
Composés organiques volatils
Durée de vie en pot
Formulation (Génie chimique)
GlycolsUn glycol ou diol est un composé chimique organique portant deux groupes hydroxyle (-OH).
Lorsque les deux groupes hydroxyle sont portés par le même atome de carbone, on parle de diol géminal. Parmi ceux-ci, on compte par exemple le méthanediol (H2C(OH)2) ou le 1,1,1,3,3,3-hexafluoropropane-2,2-diol ((F3C)2C(OH)2), la forme hydratée de l'hexafluoroacétone.
On parle de diol vicinal lorsque les deux groupes hydroxyle sont en position vicinale, c'est-à -dire attachés à des atomes de carbone adjacents. On compte parmi ceux-ci l'éthane-1,2-diol ou éthylène glycol (HO-(CH2)2-OH), un composant courant des produits antigels ou le propane-1,2-diol (propylène glycol, HO-CH2-CH(OH)-CH3).
Parmi les composés avec des groupes hydroxyles bien plus éloignés on compte le butane-1,4-diol (HO-(CH2)4-OH) ou encore le bisphénol A.
Polyesters
Polyols
Réactions chimiques
Résistance aux conditions climatiques
Résistance chimique
Revêtements (produits chimiques):Peinture (produits chimiques)
Vernis bi-composantIndex. décimale : 667.6 Peintures Résumé : Polyester polyol chemistry has been used extensively as a binder option in high performance industrial coatings applications for decades. Limitations of traditional polyester technology, such as weathering and chemical resistance have restricted its use to a co-binder due to the high level of performance requirements associated with these markets. Translating the use of a speciality monomer from copolyesters for thermoplastic applications, chemist at Eastman have evaluated the effectiveness of a unique glycol molecule as a building block in copolyester coatings resins targeted for use in automotive coatings, metal packaging applications for food cans and industrial applications like the agricultural and construction segment. Proven to enhance the hydrolytic stability and offer a balance of flexibility and hardness, the speciality polyol is enabling distinctive binder properties to address ever-changing global coatings needs. Fulfilling performance targets across very diverse fitness for use criterion, this paper capitalises on the versatility of the speciality polyol platform of resins. Through performance comparisons to next best alternative technologies, the improved durability will highlight the advantage of this next generation of polyol chemistry. Note de contenu : - Existing polyol technology
- Speciality polyol design
- Automotive and industrial applications
- Table 1 : Common polyol chemistries used in liquid OEM coatings applications
- Table 2 : Newman's empirical steric factors and material characteristics of common glycols
- Table 3 : End use application and coating details for evaluating speciality polyester polyol performance
- Table 4 : Target CTQ to address automotive monocoat and industrial topcoat market needs
- Table 5 : Resin series used to evaluate novel polyol performance in two-component top application
- Table 6 : White two-component formulations to evaluate performance in topcoat applications
- Table 7 : Chemical resistance of various white topcoat chemistries
- Table 8 : Cure response and pot-life for different industrial applications adjusted by catalyst selection
- Table 9 : VOC ranges for two-component topcoats formulated with the speciality polyol IC-1
- Fig. 1 : Representative reaction of a polyol with melamine resin chemistry
- Fig. 2 : Mechanism of thermosetting polyol/isocyanate reaction to form urethane linkage
- Fig. 3 : Reaction of phenolic resin with polyol to create C-C linkage within the themoset
- Fig. 4 : Chemical structure of 2,2,4,4-tetramethyl-1,3-cyclobutane diol (TMCD)
- Fig. 5 : Newman's empirical steric factors and material characteristics of common glycols
- Fig. 6 : Experimental half-life of model diesters after catalysed exposure to accelerated conditions
- Fig. 7 : Improved chemical resistance trend with increasing levels of TMCD monomer in total diol in a two-component topcoat coating system
- Fig. 8 : Common liquid OEM automotive and industrial paint layers and paint layer functions
- Fig. 9 : Weathering resistance, QUV-A exposure of white topcoat systems at 2500hr
- Fig. 10 : Salt spray resistance (840 hr) as measured by ASTM B117. The paint on right side of scribe (X) was removed to highlight undercut corrosion. The topcoat was applied directly to the metal (SP10 shot blasted steel)
- Fig. 11 : Improved resistance of TMCD poyol-based coatings to Skydrol and brake fluidEn ligne : https://drive.google.com/file/d/1vrYwpBiYJlEyNcFzbeadoe2gcWgovDet/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31575
in POLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 208, N° 4646 (11/2018) . - p. 20-25[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 20368 - Périodique Bibliothèque principale Documentaires Disponible Waterborne wood coatings made easy / Maria Almató in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 206, N° 4619 (04/2016)
[article]
Titre : Waterborne wood coatings made easy Type de document : texte imprimé Auteurs : Maria Almató, Auteur ; Eva Tejada, Auteur ; Joan Miquel GarcÃa, Auteur Année de publication : 2016 Article en page(s) : p. 16-20 Langues : Anglais (eng) Catégories : Bois -- Revêtements
Formulation (Génie chimique)
Hydrophilie
Polyacryliques
Polyéthers
Polyisocyanates hydrophiles
Polyuréthanes
Résistance chimique
Vernis bi-composant
Vernis en phase aqueuseIndex. décimale : 667.9 Revêtements et enduits Résumé : Waterborne wood coatings have become more and more copuler in the recent years, especially due to the increasing environmental and health concerns, as well as the strong legislative restrictions in terms of VOC taken in some regions. Thanks to the important efforts made in terms of research and development, some of the newest products are matching the standard traditional systems with a minimal environmental impact. However, there are still some drawbacks to overcome, such as the versatility and ease of use of these traditional solventborne systems.
The wood coatings industry is an industry in which you can still find a quite significant number of craftsmen and small- and medium-sized carpenters and applicators. Reliability, versatility and easy handling are very important for all the industry but these become crucial when it cornes to smaller companies.
These and other topics have been addressed by our R&D, resulting in two new products with a single aim: enabling the wood coatings formulators and applicators to switch to waterborne.Note de contenu : - Waterborne coatings
- A new ready-to-use hydropholic polyisocyanate hardener
- A new self-crosslinking acrylic dispersion for 1K and 2K systemsEn ligne : https://drive.google.com/file/d/1aSB3zlda69D4iSMfVOmGJTniiL3X0MSz/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=26124
in POLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 206, N° 4619 (04/2016) . - p. 16-20[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 17963 - Périodique Bibliothèque principale Documentaires Disponible