The structural formation of closely packed colloidal crystals on fibre and the effect of fibre surface functionality on crystalline structure / Kasumasa Hirogaki in COLORATION TECHNOLOGY, Vol. 134, N° 4 (08/2018)  

[article]  inCOLORATION TECHNOLOGY > Vol. 134, N° 4 (08/2018) . - p. 271-274 Titre : The structural formation of closely packed colloidal crystals on fibre and the effect of fibre surface functionality on crystalline structure Type de document : texte imprimé Auteurs : Kasumasa Hirogaki, Auteur ; Daichi Nakamura, Auteur ; Kazushi Sekiguchi ; Tomohiro Satake ; Isao Tabata Année de publication : 2018 Article en page(s) : p. 271-274 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Aminopropyltriethoxysilane Colloides Cristaux Dip-coating Fibres textiles synthétiques Polyesters Sol-gel, Procédé Technique des plasmas Traîtements de surface Index. décimale : 667.3 Teinture et impression des tissus Résumé : The effect of hydrophilicity and the charge of the fibre surface upon the formation of colloidal crystals on the fibre was investigated. Surface‐modified polyester fibre was prepared either by oxygen plasma treatment or with a sol‐gel method using 3‐aminopropyltriethoxysilane (APS). The surface‐modified polyester fibre was dip‐coated with 20 wt.% water suspension of uniform‐sized silica particles with a diameter of 300 nm and then it was dried. Hexagonal and square arrangements were observed for the particles deposited on the fibre surface by scanning electron microscopy (SEM). The crystallinity of deposited particles was estimated with the number ratio of arranged particles to all particles in the SEM image. On the plasma‐treated fibre, the crystallinity of deposited particles was 82% and the ratio of hexagonal arrangement to square arrangement was 3:1. On the APS‐treated fibre, crystallinity was 56% and the ratio was 1:8. The fibre‐fabricated colloidal crystal exhibited red colour on its surface and it had a peak wavelength of 637 nm in the reflection spectrum. Note de contenu : - Materials - Surface modification of fibre - Dip-coating of colloidal particles on the fibre surface - Analyses - Table : Receding water contact angle and concentration of elements on the fibre surface - Fig. 1 : SEM images of surface-modified polyester fibres with deposit of colloidal particles : untreated, APS-treated, and oxygen plasma-irradiated - Fig. 2 : Enlarged SEM mage of deposited particles on the fibre surface - Fig. 3 : Crystallinity of colloidal particles deposited on the fibre surface - Fig. 4 : Reflection spectrum of polyester fibre-fabricated colloidal crystal on its surface DOI : 10.1111/cote.12349 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12349 Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30921 [article]

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