| Titre : |
A new core-shell type fluorinated acrylic and siliconated polyurethane hybrid emulsion |
| Type de document : |
texte imprimé |
| Auteurs : |
Jiabing Dai, Auteur ; Chenyan Bai, Auteur ; Jing Chao, Auteur ; Xingyuan Zhang, Auteur |
| Année de publication : |
2007 |
| Article en page(s) : |
p. 283-288 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Copolymère silicone-uréthane
Core-Shell
Imperméabilisation
Polyacrylates
Polymères en émulsion
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
A novel core-shell type fluorinated acrylic and siliconated polyurethane (FSiPUA) hybrid emulsion was prepared by seeded emulsion polymerization using siliconated polyurethane (SiPU) as a seed and forming the structure with SiPU as a shell and the copolymer of butyl acrylate (BA) with 2,2,2-trifluoro-ethylmethacrylate (TFEMA) as a core. SiPU was synthesized using isophorone diisocyanate (IPDI), polytetramethylene ether glycol (PTMG), polypropylene glycol (PPG), dihydroxybutyl-terminated polydimethylsiloxane (PDMS), dimethylol propionic acid (DMPA), 1,6-hexanediol (HDO) and triethylamine (TEA). The contents of siloxane and fluorine were determined according to the feed ratio. Fourier transform infrared spectroscopy (FTIR) was used to identify the chain structure of SiPU and FSiPUA. Investigation of transmission electron microscopy (TEM) confirmed the core-shell structure of FSiPUA emulsion and gave the particle size at about 50 nm. The measurement results of water contact angles and the solvent absorptions in water and n-octane for cured films showed that the water and the oil repellency for FSiPUA had been improved significantly with a suitable content of fluorine and siloxane. |
| DOI : |
10.1007/s11998-007-9042-z |
| En ligne : |
https://link.springer.com/content/pdf/10.1007%2Fs11998-007-9042-z.pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3643 |
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 4, N° 3 (09/2007) . - p. 283-288
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