Development of soft feel coatings with waterborne polyurethanes / Lichang Zhou in COATINGS TECH, Vol. 2, N° 15 (04/2005)  

[article]  inCOATINGS TECH > Vol. 2, N° 15 (04/2005) . - p. 54-60 Titre : Development of soft feel coatings with waterborne polyurethanes Type de document : texte imprimé Auteurs : Lichang Zhou, Auteur ; Bernard Koltisko, Auteur Année de publication : 2005 Article en page(s) : p. 54-60 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 667.9 Revêtements et enduits Résumé : Soft feel coatings applied over plastic substrates are widely used in automotive interiors and consumer products. These coatings provide a luxurious look and leather-like texture to hard plastic surfaces. Traditionally, two-component solvent-based polyurethanes have been used in these applications. In recent years, waterborne polyurethane formulations with lower volatile organic compounds have become the choice for soft feel coatings. In this article, the development of soft feel coatings with waterborne polyurethane technology will be presented. The performance of soft feel coatings based on waterborne polyisocyanates with polyester, acrylic polyols, and/or polyurethane dispersions will be discussed. En ligne : https://drive.google.com/file/d/18dm5e1CTY_RdyZb40YmxnmZ1jGhz3qs-/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5518 [article]

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Getting powder coating more flexible / Lichang Zhou in EUROPEAN COATINGS JOURNAL (ECJ), N° 11/02 (11/2002)  

[article]  inEUROPEAN COATINGS JOURNAL (ECJ) > N° 11/02 (11/2002) . - p. 26-32 Titre : Getting powder coating more flexible Type de document : texte imprimé Auteurs : Lichang Zhou, Auteur ; Oliver Smith, Auteur ; Bill Boon, Auteur Année de publication : 2002 Article en page(s) : p. 26-32 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.9 Revêtements et enduits Résumé : Polyester powder coatings flexibility can be enhanced by preparing polyesters where the glycol is a mixture of 1,3-propanediol (PDO) and neopentyl glycol (NPG). Polyesters made with PDO/NPG mixtures and 80/20terephalic/isophtalic acids have provied powder coating with promissing performance properties. Hydroxyl-capped polyesters formulated with caprolactam blocked isophorone diisocyanate crosslinking agent afforded significantly improved flexibility when NPG was partialig replaced by PDO. Note de contenu : Synthesis of hydroxy functional polyesters / Preparation of powder coatings / Amorophous behaviour: a main characteristic of prepared polyester resin / Similar reactivity of polyesters / Powder mixture with good processability / exellent storage stability / Impact resistance significantly improved / More difference with T-bend test / Exellent gloss / Hardness, adhesion, and MEK double rub resistance / Water resistance, weathering and salt spray testing / Chemical and strain reistance are given / Samples show yellowing resistance in overbake / DSC studies of the coating films / Dynamic mechanical analysis (DMA) En ligne : https://drive.google.com/file/d/18MQ2cfMfnEm2V7HAUfX0NiG66V3_-OL-/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9562 [article]

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