| 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 |
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 15, N° 1 (01/2018) . - p. 211-222
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