Wettability control between superoleophobic and superoleophilic characteristics on the modified superhydrophobic surfaces treated with fluoroalkyl end-capped vinyltrimethoxysilane oligomeric silica/poly(styrene-co-butadiene) nanocomposites: application to the separation of oil and water / Arissara Ratcha in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 15, N° 1 (01/2018)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 15, N° 1 (01/2018) . - p. 211-222 Titre : Wettability control between superoleophobic and superoleophilic characteristics on the modified superhydrophobic surfaces treated with fluoroalkyl end-capped vinyltrimethoxysilane oligomeric silica/poly(styrene-co-butadiene) nanocomposites: application to the separation of oil and water Type de document : texte imprimé Auteurs : Arissara Ratcha, Auteur ; Rika Takahashi, Auteur ; Suwadee Kongparakul, Auteur ; Shohei Yamazaki, Auteur ; Hideo Sawada, Auteur Année de publication : 2018 Article en page(s) : p. 211-222 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Amphiphobie Caoutchouc styrène-butadiène Eau Huiles et graisses Hydrophobie Mouillabilité Oléophilie Oligomères Séparation (technologie) Traîtements de surface Index. décimale : 667.9 Revêtements et enduits Résumé : Fluoroalkyl end-capped vinyltrimethoxysilane oligomer [RF-(CH2CHSi(OMe)3) n -RF; RF = CF(CF3)OC3F7; n = 2, 3: RF-(VM) n -RF] can undergo the sol–gel reaction in the presence of poly(styrene-co-butadiene) (SBR) under alkaline or acidic conditions, respectively, to afford the corresponding fluorinated oligomeric silica/SBR nanocomposites [RF-(VM-SiO2) n -RF/SBR]. Wettability control between superoleophobic and superoleophilic characteristics was observed on the modified superhydrophobic glass surfaces treated with these fluorinated nanocomposites. The nanocomposites, which were prepared under alkaline conditions, can provide a superoleophobic/superhydrophobic (superamphiphobic) characteristic on the modified surface; however, a superoleophilic/superhydrophobic characteristic was observed on the modified surface treated with the fluorinated nanocomposites, which were prepared under acidic conditions. Interestingly, the fluorinated nanocomposite particle powders possessing a superoleophilic/superhydrophobic characteristic were applied to the packing material for the column chromatography to separate not only the mixture of oil and water but also the W/O emulsion to isolate the transparent colorless oil. In addition, these particle powders were found to have a good reusability as the packing materials for the separation of the mixture of oil and water. Note de contenu : - Measurements - Materials - Preparation of RF-(VM-SiO2)n-Rf/SBR - Preparation of modified glass treated with the RF-(VM-SiO2)n-Rf/SBR nanocomposites by casting method DOI : 10.1007/s11998-017-0003-x En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-017-0003-x.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30113 [article]

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