Hydroxylated guayule rubber in powder coatings / Amir Niroomand in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 68, N° 863 (12/1996)

[article]  inJOURNAL OF COATINGS TECHNOLOGY (JCT) > Vol. 68, N° 863 (12/1996) . - p. 15-20 Titre : Hydroxylated guayule rubber in powder coatings Type de document : texte imprimé Auteurs : Amir Niroomand, Auteur ; Thomas P. Schuman, Auteur ; Shelby F. Thames, Auteur Année de publication : 1996 Article en page(s) : p. 15-20 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Caoutchouc Guayule et constituants Hydroxylation Liants Revêtements poudre:Peinture poudre Index. décimale : 667.9 Revêtements et enduits Résumé : The synthesis, characterization, and application of hydroxylated low molecular weight guayule rubber as a powder coating component is described. In particular, our interest was in the generation of secondary alcohol moieties on a guayule rubber backbone, and its use as part of a novel and, as yet, unreported powder coating formulation. Hydroxylated guayule rubber was found to improve toughness, flexibility, and solvent resistance of powder coatings. Note de contenu : - EXPERIMENTAL : Materials - Analytical - Hydroboration of guayale rubber followed by oxidation - Powder coating preparation - Testing conditions - RESULTS AND DISCUSSION : Incorporation into powder coatings - Rubber toughening Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18455 [article]

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Ink-jet printing paper with improved waterfastness / Jinzhen Shi in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 1, N° 3 (07/2004)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 1, N° 3 (07/2004) . - p. 225-234 Titre : Ink-jet printing paper with improved waterfastness Type de document : texte imprimé Auteurs : Jinzhen Shi, Auteur ; James O. Stoffer, Auteur ; Thomas P. Schuman, Auteur Année de publication : 2004 Article en page(s) : p. 225-234 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Ammoniums quaternaires Chimie des surfaces Colorants -- Adsorption Encre en phase aqueuse Impression jet d'encre Organosilanes Papier et carton couché Surfaces -- Analyse Index. décimale : 667.4 Encres Résumé : Ink-jet printing technology has experienced dramatic advances in the last decade, and is widely used in small businesses and home offices because of its excellent resolution, low price, and brilliant multicolor output. The ink-jet process involves two distinct parts, the inks and their application, and the media surface. Improvements in ink-jetting technology and the corresponding improvement in image application resolution have caused waterfastness to become more limiting to the achieved resolution. Our research work attempts to improve waterfastness by incorporating cationically modified boehmites into paper coating formulations that interact more strongly with anionic dyes in the inks. Boehmites (gamma-AlOOH) were surface-modified using commercially available [N,N,N-trimethyl]-ammonium propyl-(trimethoxy)-silane salts in nonaqueous reactions. The modified boehmites were characterized using infrared spectroscopy, thermogravimetric analysis, zeta potential, X-ray photoelectron spectroscopy, and pore size analysis to assess the extent of modification and pore size effects. Aqueous, high pigment volume concentration paper coatings were then formulated from the boehmites and applied to paper substrates to assess the relative ability of the coatings to retain printed image dyes. The coatings were characterized for dispersion viscosity and gloss, while printed images on the coatings were tested by water spot, fixed dye, and water drip analyses. Coatings synthesized using the surface-modified pigments showed a reduced binder demand as well as improved image waterfastness and fixed-dye adsorption properties as compared to the unmodified boehmite coatings. DOI : 10.1007/s11998-004-0016-0 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-004-0016-0.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3914 [article]

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Smart corrosion inhibition strategies : substrate, coating, and inhibitors / Thomas P. Schuman in COATINGS TECH, Vol. 4, N° 2 (02/2007)  

[article]  inCOATINGS TECH > Vol. 4, N° 2 (02/2007) . - p. 60-70 Titre : Smart corrosion inhibition strategies : substrate, coating, and inhibitors Type de document : texte imprimé Auteurs : Thomas P. Schuman, Auteur Année de publication : 2007 Article en page(s) : p. 60-70 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 667.9 Revêtements et enduits Résumé : Corrosion is a persistent problem for machinery and vehicles constructed out of metals, in particular those comprised of steel or aluminum alloys. The design of metal structures, as to the material and how it interfaces with the environment, plays a large role in the tendency to corrode cor·rode v. cor·rod·ed, cor·rod·ing, cor·rodes v.tr. 1. To destroy a metal or alloy gradually, especially by oxidation or chemical action: acid corroding metal. since corrosion is a surface reaction. Surface composition and morphology, therefore, greatly affect the ability of metal to remain passive or to become corrosively active. Materials design should dictate what surface compositions or morphologies are desired, and supplement the mechanical architecture, to maximize corrosion resistance. For active metal alloys, the currently utilized bulk alloy specifications do not appear sufficient for ensuring a particular corrosion activity. Surface conversion of the metal to either a less active or an actively corrosion-preventing coating may or may not passivate pas·si·vate v. pas·si·vat·ed, pas·si·vat·ing, pas·si·vates v.tr. 1. To treat or coat (a metal) in order to reduce the chemical reactivity of its surface. 2. the resulting surface. The application of a coating to a reactive metal surface is commonly utilized to retard or prevent corrosion of the surface, which can provide either passive or smart inhibition of corrosion processes. Smart systems attempt to utilize environmental or behavioral triggers to induce a response in the coating or substrate that changes surface composition to better inhibit corrosion. Design of active coating systems and their mechanisms are reviewed En ligne : https://drive.google.com/file/d/1M40cQY1jpeUWAp7VOj3JxcaQj9Ng0bd4/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3601 [article]

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