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COATINGS TECH . Vol. 9, N° 6Automotive coatingsMention de date : 06/2012 Paru le : 07/07/2012 |
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Ajouter le résultat dans votre panierUse of cellulose esters as rheology additives for automotive OEM clearcoats / Jianhui Zhou in COATINGS TECH, Vol. 9, N° 6 (06/2012)
[article]
Titre : Use of cellulose esters as rheology additives for automotive OEM clearcoats Type de document : texte imprimé Auteurs : Jianhui Zhou, Auteur ; Brian King, Auteur ; Kevin W. McCreight, Auteur ; Josh Seeley, Auteur Année de publication : 2012 Article en page(s) : p. 28-35 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Automobiles -- Revêtements:Automobiles -- Peinture
Epaississants
Esters de cellulose
Vernis -- AdditifsIndex. décimale : 667.7 Cires, laques, vernis Résumé : Automotive coatings have witnessed a definite transition to greener technologies over the past decade. Paint lines are being built or retrofitted for consolidated paint processes, with the intent to reduce energy consumption and operating cost. Specific to automotive clearcoats, there is a move to a one-pass application and a continuing shift to higher solids clearcoats. Consolidated paint processes require a clearcoat with improved strike-in resistance, better flow/leveling, and "filling" power to cope with telegraphing from imperfect substrates. One-pass application requires a clearcoat with an improved sag/flow balance. This article illustrates the improved appearance achieved by the use of cellulose ester rheology additives, alone or in combination with other rheology modifiers, in automotive OEM 1K clearcoats. Electrostatic rotary bell application was utilized to assess clearcoat appearance. Flow and leveling were characterized by a BYK Wavescan Dual. the viscoelastic behavior of clearcoats during the film drying process was investigated using a novel rheological technique, and the speed of solvent release was monitored using thermogravimetric analysis (TGA). Note de contenu : - USE OF CELLULOSE ESTERS AS RHEOLOGY ADDITIVES FOR AUTOMOTIVE OEM CLEARCOATS : Impact of cellulose esters on the appearance of OEM clearcoats - Natural weathering of OEM clearcoats - Impact of cellulose esters on the drying behavior of automotive OEM clearcoats En ligne : https://drive.google.com/file/d/1JQOxn0yLv4F87dbvdRyEvOYirsIufPPJ/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=15570
in COATINGS TECH > Vol. 9, N° 6 (06/2012) . - p. 28-35[article]Réservation
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Titre : Conquering plastic substrates Type de document : texte imprimé Auteurs : Kevin M. Biller, Auteur Année de publication : 2012 Article en page(s) : p. 42-45 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Matières plastiques -- Revêtement:Matières plastiques -- Peinture
Matières plastiques dans les automobiles
Peinture poudre -- Séchage sous rayonnement ultraviolet
Revêtements poudre:Peinture poudreIndex. décimale : 667.9 Revêtements et enduits Résumé : The notion of powder coating was first conceived in the 1950s by the German scientist Erwin Gemmer. (1) Significant commercial acceptance did not materialize until the early 1960s when pipeline makers began using thermosetting epoxy powders to replace multiple coats of liquid technology. (2) These functional powders were applied at thick films to heavy gauge steel pipes and valves used to convey oil and natural gas.
It was not until the late 1970s that the powder coating industry's commercial growth accelerated. (3) Through the combination of new resin technology (mainly polyester) and refinements in electrostatic application techniques, the nascent powder coating industry entered markets requiring not only functional performance but aesthetics as well. Groundbreaking innovation captured large portions of the appliance (white goods) and fabricated metals markets. This growth progressed through the 1980s as powder coatings replaced liquid finishing lines throughout Western Europe and North America.
The 1990s ushered in significant advances in application and formulating technology that provided materials and processes able to exceed demanding automotive specifications. High quality powder coatings were introduced as primer-surfacers at numerous General Motors and Chrysler assembly plants. Perhaps one of the most significant achievements in powder coating technology occurred in 1997 when BMW introduced acrylic-based powder coatings as their clear topcoat finishing process in their Dingolfing, Germany plant.
By the turn of the century, powder coating technology had conquered the fabricated metal finishing industry. If a manufactured part was metal and could fit in an oven, there was a high probability that it was powder coated. Unfortunately, the new century also brought an economic recession and with it stagnation in growth in the European and North American powder markets. There were too many powder producers pursuing the same established business. Consolidation and market contraction ensued, leaving advances in powder coating technology to stall in the background.Note de contenu : - Capturing the metal finishing market
- A sea change in substrate technology
- Low temperature cure powder coatings
- Application challenges with plastic substrates : UV-curable powder coatings
- Commercial reality
- A glimpse into the futureEn ligne : https://drive.google.com/file/d/1R2b5miBprLHmw6lysydYeJoAyGtnFas6/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=15572
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Code-barres Cote Support Localisation Section Disponibilité 14016 - Périodique Bibliothèque principale Documentaires Disponible Aerogel for highly thermally insulative coatings / James Pidhurney in COATINGS TECH, Vol. 9, N° 6 (06/2012)
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Titre : Aerogel for highly thermally insulative coatings Type de document : texte imprimé Auteurs : James Pidhurney, Auteur ; Peter F. Pescatore, Auteur Année de publication : 2012 Article en page(s) : p. 46-48 Langues : Américain (ame) Catégories : Aérogels
Isolation thermique
Revêtements -- Additifs
Revêtements protecteurs
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 : 667.9 Revêtements et enduits Résumé : Recognizing the advantages of a high performance insulative coating, some advanced coatings manufacturers are exploring the use of silica aérogel as an additive to paint to achieve significantly lower thermal conductivities. These coatings, a new class of materials called highly thermally insulative coatings (HiTlCs), are designed to offer energy savings along with burn protection. Note de contenu : - Current thermally insulative coatings
- Highly thermally insulative coatings
- Energy savings
- Safety
- The future of insulative coatingsEn ligne : https://drive.google.com/file/d/1ORGYFt_bwLAIXUpqqapGdjlh9mI9iHuk/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=15573
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