| Titre : |
Strong synergistic effect of cationic hydrocarbon surfactant and novel nonionic tri-block short-chain fluorocarbon surfactant mixtures on surface activity, wettability and solubilization |
| Type de document : |
texte imprimé |
| Auteurs : |
Yutang Zhou, Auteur ; Yong Jin, Auteur ; Yichao Shen, Auteur ; Liangjie Shi, Auteur ; Shuangquan Lai, Auteur ; Yujia Tang, Auteur |
| Année de publication : |
2021 |
| Article en page(s) : |
15 p. |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Adsorption
Angle de contact
Chimie des surfaces
Colloides -- Stabilité
Colorants
Mélanges (chimie)
Micelles
Mouillabilité
Polytétrafluoréthylène
Solubilisation
Surfactants
Tension superficielle
Thermochimie
TransmittanceLa transmittance, en général, est le rapport caractérisant la transmission d'une grandeur dans un système. Elle se calcule par le rapport entre la grandeur en entrée et en sortie.
En optique, la transmittance d'un matériau ou d'un filtre est la fraction du flux lumineux le traversant. Elle est également nommée facteur de transmission mais aussi transparence dans le domaine de la photographie.
|
| Index. décimale : |
541.33 Chimie physique - Chimie des surfaces (Phénomènes superficiels) |
| Résumé : |
Mixing hydrocarbon surfactants with fluorocarbon surfactants is still an important strategy to improve the economic benefits and performances of fluorocarbon surfactants and expand their range of application. Herein, we prepared a novel kind of hydrocarbon-fluorocarbon surfactant mixtures via mixing a cationic surfactant, cetyltrimethylammonium bromide (CTAB), with a tri-block nonionic short-chain fluorocarbon surfactant (F9EG13F9) in aqueous solution. The results showed that adding a small CTAB amount to F9EG13F9 (the molar fraction of CTAB in the mixture (x1) was 0.2) could greatly reduce its critical micelle concentrations (cmc) from 0.408 mmol/L to 0.191 mmol/L. At this x1, the contact angle of the mixture was the minimum (57.7 °) at 100 s on polytetrafluoroethylene film, which was even lower than that of F9EG13F9. Besides, CTAB/F9EG13F9 mixtures possessed better colloidal stability and solubilization ability toward hydrophobic dye (Sudan І) than F9EG13F9. The outstanding performances of binary surfactant mixtures benefited from the non-ideal mixing and strong synergistic effect evidence that CTAB/F9EG13F9 surfactant mixtures could be used in practical applications instead of individual F9EG13F9, thereby reducing the used cost of F9EG13F9. |
| Note de contenu : |
- MATERIALS AND METHODS : Materials - Surface tension measurements - Conductivity measurements - Contact angle measurements - Transmittance measurements - Solubilization of hydrophobic dye
- RESULTS AND DISCUSSION : Micellization behavior of binary mixtures - Adsorption behavior of binary mixtures - Thermodynamics of binary mixtures - Wettability of binary mixtures - Colloidal stability of binary mixtures - Solubilization of hydrophobic dye
- Table 1 : Values of cmc and micellization parameters for CTAB/F9EG13F9 mixtures at different CTAB proportions at 25 °C
- Table 2 : Critical surface tension and adsorption parameters for CTAB/F9EG13F9 mixtures at different CTAB proportions at 25 °C
- Table 3 : Thermodynamic parameters for CTAB/F9EG13F9 mixtures at different CTAB proportions at 25 °C
- Table 4 : Solubilization parameters for CTAB/F9EG13F9 mixtures at different CTAB proportions at 25 °C |
| DOI : |
https://doi.org/10.1186/s42825-021-00064-1 |
| En ligne : |
https://link.springer.com/content/pdf/10.1186/s42825-021-00064-1.pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37547 |
in JOURNAL OF LEATHER SCIENCE AND ENGINEERING > Vol. 3 (Année 2021) . - 15 p.
Aller sur edunet
Accueil
Strong synergistic effect of cationic hydrocarbon surfactant and novel nonionic tri-block short-chain fluorocarbon surfactant mixtures on surface activity, wettability and solubilization in JOURNAL OF LEATHER SCIENCE AND ENGINEERING, Vol. 3 (Année 2021)
