Characterization of colloidal particles formed in plastic coating solution at room temperature / Yasuhiro Matoba in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 17, N° 5 (09/2020)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 17, N° 5 (09/2020) . - p. 1343–1349 Titre : Characterization of colloidal particles formed in plastic coating solution at room temperature Type de document : texte imprimé Auteurs : Yasuhiro Matoba, Auteur ; Ryo Akao, Auteur ; Masaki Nakazawa, Auteur ; Hideyo Ando, Auteur ; Shigeru Tasaka, Auteur Année de publication : 2020 Article en page(s) : p. 1343–1349 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Caractérisation Colloides Lumière -- Diffusion Méthyltriméthoxysilane Revêtement en plastique Spectrométrie infrarouge Index. décimale : 667.9 Revêtements et enduits Résumé : The structure of solution of methyltrimethoxysilane (MTMS), which is used for hard coating for plastic materials through its sol–gel reactions, was investigated by light scattering, atomic force microscopy, infrared spectroscopy, and X-ray diffraction. Although hard films can be formed only after heating the MTMS solution and no significant increase in viscosity can be found at room temperature, colloidal particles were detected in the solution by light scattering immediately after adding the catalyst. Particles with a size comparable to that determined by light scattering were observed by atomic force microscopy. The change induced by the growth of the particles was measured for 4 weeks. The infrared spectroscopy and X-ray diffraction for the solutions changed gradually, which supports the formation and growth of the colloidal particles. These results indicate a very slow reaction of MTMS and structural change in the solution even at room temperature, which can affect successful coating of plastic materials using MTMS. DOI : https://doi.org/10.1007/s11998-020-00355-y En ligne : https://link.springer.com/content/pdf/10.1007/s11998-020-00355-y.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34577 [article]

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Chitosan-hybridized acrylic resins prepared in emulsion polymerizations and their application as interior finishing coatings / Tamaki Wada in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 2, N° 7 (07/2005)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 2, N° 7 (07/2005) . - p. 577-582 Titre : Chitosan-hybridized acrylic resins prepared in emulsion polymerizations and their application as interior finishing coatings Type de document : texte imprimé Auteurs : Tamaki Wada, Auteur ; Yasuhiro Matoba, Auteur ; Tadashi Uragami, Auteur Année de publication : 2005 Article en page(s) : p. 577-582 Note générale : Bibliogr. Langues : Américain (ame) Tags : Oside  polymère  Etude  expérimentale  Formaldéhyde  Composé  organique  volatil  Capacité  adsorption  Propriété  mécanique  Latex  Relation  mise  en  oeuvre  propriété  Résistance  traction  Copolymérisation  radicalaire  esthétique  émulsion  Préparation  Matériau  revêtement  Vernis  eau  Acrylique  dérivé  copolymère  Mélange  Chitosane Index. décimale : 667.9 Revêtements et enduits Résumé : Chitosan was used to introduce formaldehyde adsorption abilities into an emulsion binder for interior finishing coatings. Chitosan-hybridized acrylic emulsions were prepared by two methods. To produce stable chitosan-hybridized acrylic emulsions, the pre-emulsion dropping method is superior to the monomer dropping method. The adsorption performances for formaldehyde in chitosan-hybridized acrylic resin films increased with increasing chitosan contents; the films also had adsorption abilities for hydrogen sulfide and ammonia. Tensile strengths and elongation at breaking points decreased with increasing chitosan contents. Interior finishing coatings made from chitosan-hybridized acrylic resin emulsions have the qualities necessary for an interior finishing coating and showed excellent adsorption abilities for formaldehyde. DOI : 10.1007/s11998-005-0017-7 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-005-0017-7.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3805 [article]

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