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Preparation and fluorine enrichment behavior of fluorinated polyester / Jinsu Xiong in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 10, N° 5 (09/2013)
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Titre : Preparation and fluorine enrichment behavior of fluorinated polyester Type de document : texte imprimé Auteurs : Jinsu Xiong, Auteur ; Yunquan Jin, Auteur ; Baoqing Shentu, Auteur ; Zhixue Weng, Auteur Année de publication : 2013 Article en page(s) : p. 621-629 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Angle de contact
Energie de surface
Fluorine
Fluoropolymères
Polyesters
Revêtements poudre:Peinture poudre
Surfaces (technologie)Index. décimale : 667.9 Revêtements et enduits Résumé : Poly[1,2-propylene glycol-3-(2,2,3,3,4,4,5,5,6,6,7,7-dodecafluoroheptoxy)]phthalate (PDFP) was prepared by the reaction of phthalic anhydride, epichlorohydrin, and 2,2,3,3,4,4,5,5,6,6,7,7-dodecafluoroheptyl glycidyl ether (DFGE). The structure of PDFP was characterized with 1H-NMR, 19F-NMR, FTIR and the wettability of water and oil on cured PDFP coatings was investigated by contact angle meter. The results showed that the contact angle of water and diiodomethane on cured coatings increased with the increase of the fluorine content and could maximally attain 108° and 69°, respectively. At a fluorine content of 0.75%, the surface energy was 21.1 mJ/m2. X-ray photoelectron spectroscopic (XPS) analysis showed that the surface F/C atomic ratio was much higher than the overall F/C molar ratio, indicating that the fluoroalkyl groups in PDFP had enriched on the coating surface. It was also found that the fluorinated polyester with longer fluoroalkyl groups had the higher tendency to enrich on the coating surface. Note de contenu : - EXPERIMENTAL : Materials - Preparation of fluorinated polyester - Preparation of fluorinated polyester powder coating (PDFPPC) - Spraying and curing of fluorinated polyester powder coating - Characterizations
- RESULTS AND DISCUSSION : Preparation and structure of PDFP - Fluorine content in PDFP - Surface properties of the coatings based on PDFPPCs - Enrichment of fluoroalkyl gruops on the coating surfaceDOI : 10.1007/s11998-013-9480-8 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-013-9480-8.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=19781
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