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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)
[article]
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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Code-barres Cote Support Localisation Section Disponibilité 15618 - Périodique Bibliothèque principale Documentaires Disponible 15679 - Périodique Bibliothèque principale Documentaires Disponible Preparation of alkali-resistant aluminum pigment encapsulated with fluoropolymer by in situ polymerization / Pengchao Men in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 18, N° 5 (09/2021)
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Titre : Preparation of alkali-resistant aluminum pigment encapsulated with fluoropolymer by in situ polymerization Type de document : texte imprimé Auteurs : Pengchao Men, Auteur ; Jihong Liang, Auteur ; Jinxuan He, Auteur ; Jian Chen, Auteur ; Bing Geng, Auteur ; Wei Li, Auteur Année de publication : 2021 Article en page(s) : p. 1227-1235 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Aluminium L'aluminium est un élément chimique, de symbole Al et de numéro atomique 13. C’est un métal pauvre, malléable, de couleur argent, qui est remarquable pour sa résistance à l’oxydation13 et sa faible densité. C'est le métal le plus abondant de l'écorce terrestre et le troisième élément le plus abondant après l'oxygène et le silicium ; il représente en moyenne 8 % de la masse des matériaux de la surface solide de notre planète. L'aluminium est trop réactif pour exister à l'état natif dans le milieu naturel : on le trouve au contraire sous forme combinée dans plus de 270 minéraux différents, son minerai principal étant la bauxite, où il est présent sous forme d’oxyde hydraté dont on extrait l’alumine. Il peut aussi être extrait de la néphéline, de la leucite, de la sillimanite, de l'andalousite et de la muscovite.
L'aluminium métallique est très oxydable, mais est immédiatement passivé par une fine couche d'alumine Al2O3 imperméable de quelques micromètres d'épaisseur qui protège la masse métallique de la corrosion. On parle de protection cinétique, par opposition à une protection thermodynamique, car l’aluminium reste en tout état de cause très sensible à l'oxydation. Cette résistance à la corrosion et sa remarquable légèreté en ont fait un matériau très utilisé industriellement.
L'aluminium est un produit industriel important, sous forme pure ou alliée, notamment dans l'aéronautique, les transports et la construction. Sa nature réactive en fait également un catalyseur et un additif dans l'industrie chimique ; il est ainsi utilisé pour accroître la puissance explosive du nitrate d'ammonium.
Anticorrosifs
Anticorrosion
Bases (chimie)
Caractérisation
Encapsulation
Fluoropolymères
Pigments métalliques
Polyméthacrylate de trifluoroéthyle
Résistance chimique
Revêtements:PeintureIndex. décimale : 667.9 Revêtements et enduits Résumé : Flaky aluminum pigments with excellent corrosion resistance have found applications in diverse fields. In this study, a fluoropolymer has been incorporated in the aluminum pigment to effectively enhance its corrosion resistance, along with the improvement in the chemical resistance and thermal stability. Specifically, a uniform dense layer of poly(trifluoroethyl methacrylate) (PTFEMA) has been directly coated on the surface of the flaky aluminum pigment by in situ polymerization. The encapsulated aluminum pigment exhibited high stability upon dipping in the alkaline solution (pH = 13) due to protection imparted by the fluoropolymer layer. The morphology of the fluoropolymer layer on the surface of the aluminum pigment was characterized by scanning electron microscopy (SEM). Moreover, the thermal stability of the encapsulated aluminum pigment was analyzed by thermogravimetric analysis (TG). The structure and composition of the fluoropolymer layer were further characterized by Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS). The stability of the aluminum pigment in alkaline aqueous media was investigated via hydrogen evolution experiments. Overall, the corrosion resistance of the aluminum pigment encapsulated with fluoropolymer was observed to be markedly improved owing to the presence of the PTFEMA layer. Note de contenu : - EXPERIMENTAL : Materials - Synthesis of PTFEMA/Al - Characterization
- RESULTS AND DISCUSSION : Characterization of the raw aluminum and PTFEMA/Al particles by SEM - Characterization of the raw Al and PTFEMA/Al particles by FTIR - Characterization of the raw Al and PTFEMA/Al particles by XPS - Characterization of the raw Al and PTFEMA/Al particles by TG - The effect of TFEMA and TMPTMA on the anticorrosion properties of modified aluminum powder - Spraying of the metallic paint containing the aluminum pigmentDOI : https://doi.org/10.1007/s11998-021-00481-1 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-021-00481-1.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36427
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Code-barres Cote Support Localisation Section Disponibilité 22991 - Périodique Bibliothèque principale Documentaires Disponible Preparation of amphiphobically modified poly(vinyl alcohol) film by fluoroalkyl end-capped vinyltrimethoxysilane oligomer / Yuta Aomi in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 16, N° 3 (05/2019)
[article]
Titre : Preparation of amphiphobically modified poly(vinyl alcohol) film by fluoroalkyl end-capped vinyltrimethoxysilane oligomer Type de document : texte imprimé Auteurs : Yuta Aomi, Auteur ; Hideo Sawada, Auteur Année de publication : 2019 Article en page(s) : p. 651-660 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Alcool polyvinylique
Amphiphobie
Diffractométrie de rayons X
Fluoropolymères
Oligomères
Résistance à l'humidité:Résistance à l'eau
Revêtements organiques
Stabilité thermique
VinyltriméthoxysilaneIndex. décimale : 667.9 Revêtements et enduits Résumé : Hydrophilic poly(vinyl alcohol) (PVA) was chemically modified by using fluoroalkyl end-capped vinyltrimethoxysilane oligomer [RF-(VM)n-RF] to lead the PVA/RF-(VM)n-RF composite films. The PVA/RF-(VM)n-RF composite film obtained under non-catalytic conditions was found to provide the water-soluble property; however, the acidic conditions enabled the composite film to afford no solubility toward water, giving an amphiphobic property on both the surface and reverse sides just after the deposit of an oil or water droplet. RF-(VM)n-RF oligomer was also applied to the fabrication of the PVA/RF-(VM)n-RF/B(OH)3 composite film by using the RF-(VM)n-RF/B(OH)3 nanocomposites, which were prepared by the composite reaction of RF-(VM)n-RF oligomer with boric acid. It was demonstrated that the PVA/RF-(VM)n-RF/B(OH)3 composite film obtained by the interaction of the corresponding nanocomposites with PVA under acidic conditions can afford the perfect water-resistance ability even after immersion of this film into water for 30 min to give the amphiphobic property on both the surface and reverse sides, although the corresponding PVA/RF-(VM)n-RF composite film and the pristine PVA film provided the swelling behavior toward water, respectively. Thermal gravimetric analyses (TGA) and differential thermal analyses (DTA) measurements showed that the PVA/RF-(VM)n-RF/B(OH)3 composite film can give a higher thermal stability than that of the RF-(VM)n-RF/PVA composite film and the pristine PVA film. DOI : 10.1007/s11998-018-0148-2 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-018-0148-2.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32579
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Code-barres Cote Support Localisation Section Disponibilité 20953 - Périodique Bibliothèque principale Documentaires Disponible Preparation of cationic fluorinated acrylate copolymer latex and its application on cotton fabric / Yicong Chen in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 17, N° 4 (07/2020)
[article]
Titre : Preparation of cationic fluorinated acrylate copolymer latex and its application on cotton fabric Type de document : texte imprimé Auteurs : Yicong Chen, Auteur ; Fujin Fu, Auteur ; Guifang Yang, Auteur ; Yifan Liu, Auteur ; Yuancai Lv, Auteur ; Minghua Liu, Auteur Année de publication : 2020 Article en page(s) : p. 875-885 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Copolymère acrylate fluoré cationique
CotonLe coton est une fibre végétale qui entoure les graines des cotonniers "véritables"(Gossypium sp.), un arbuste de la famille des Malvacées. Cette fibre est généralement transformée en fil qui est tissé pour fabriquer des tissus. Le coton est la plus importante des fibres naturelles produites dans le monde. Depuis le XIXe siècle, il constitue, grâce aux progrès de l'industrialisation et de l'agronomie, la première fibre textile du monde (près de la moitié de la consommation mondiale de fibres textiles).
Fluoropolymères
Hydrophobie
Latex
Polymérisation en émulsion
Revêtements organiques
Textiles et tissusIndex. décimale : 667.9 Revêtements et enduits Résumé : Coupled with the improvement in people’s living standards, the demand for textiles having a special performance like water repellency is mushrooming. In this study, the cationic fluorinated acrylate copolymer latex particles with a core–shell structure were synthesized via semicontinuous seed emulsion polymerization process, using Span 80, Tween 80, and dodecyltrimethylammonium chloride as composite emulsifier and (2-(acryloyloxy)ethyl)trimethylammonium chloride as a cationic monomer. Cationic fluorinated acrylate copolymers were successfully confirmed through the FTIR, 1H NMR, and XPS analyses. In addition, the homogeneous latex particles (~ 132 nm of average size) with an evident core–shell structure were observed by TEM analysis, and a stable positive charge (48 ± 5 mV) on the surface of latex particles was demonstrated by zeta potential analysis. Meanwhile, the results showed that the dosage of dodecafluoroheptyl methacrylate (DFMA) played a vital role in the hydrophobicity of the latex films and the one with the best water repellency was identified with 10 g of DFMA dosage. Furthermore, the cotton fabric finishing experiments demonstrated that, after finishing by the cationic fluorinated acrylate copolymer emulsion, the treated cotton fabric exhibited excellent hydrophobicity even at low concentration, with > 130° of the water contact angle and > 60 min of the static absorbing time. Note de contenu : - EXPERIMENTAL SECTION : Materials - Preparation of core-phase and shell-phase preemulsion - Synthesis of cationic fluorinated acrylate copolymer emulsions - Fabric treatment - Characterizations
- RESULTS AND DISCUSSION : Synthesis and characterization of CFE emulsions - XPS analysis of the CFA latex films - Hydrophobicity of the CFA latex films - Zeta potential and DLS of CFA emulsions - The molecular weight distribution of the CFA - Morphology of the latex particles and their films - Hydrophobicity of the finished cotton fabric - Surface morphology of the finished cotton fabricDOI : https://doi.org/10.1007/s11998-019-00306-2 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-019-00306-2.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34377
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Code-barres Cote Support Localisation Section Disponibilité 21864 - Périodique Bibliothèque principale Documentaires Disponible Preparation of cationic fluorinated polyurethane micro-emulsion and its application in leather finishing / Li Peizhi in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 94, N° 6 (11-12/2010)
[article]
Titre : Preparation of cationic fluorinated polyurethane micro-emulsion and its application in leather finishing Type de document : texte imprimé Auteurs : Li Peizhi, Auteur ; Shen Yiding, Auteur ; Yang Xiaowu, Auteur ; Li Ganghui, Auteur Année de publication : 2010 Article en page(s) : p. 240-247 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Alcools
Analyse thermique
Angle de contact
Cuirs et peaux -- Finition
Diisocyanate d'isophorone
Fluoropolymères
Fourier, Spectroscopie infrarouge à transformée de
Microémulsions
Microscopie électronique en transmission
Perfluorooctyles
Polyéthers
Polymères cationiques
Polyuréthanes
Propane de triméthylol
Tension superficielle
ThermogravimétrieIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : A waterborne cationic fluorinated polyurethane (WCFPU) was prepared by the reaction of isophorone isocyanate (IPDI), polyether polyol (PTMG1000), N-methyldiethanolamine (MDEA), trimethylol propane (TMP) and 2-(perfluorooctyl) ethyl alcohol (FEOH), and then was used in leather finishing. Their structure, morphology, surface property, thermal performance and chemical resistance were characterized by Fourier trnasform infrared spectromoter (FT-IR), light scattering (LS), transmission electron microscope (TEM), interfacial tension instrument (IT), contact angle (CA), differential scanning calorimeter (DSC), thermogravimetry (TG) and spot test. The results reveal that WCFPU was endowed with low surface tension of its micro-emulsion and low surface energy of its film which was beneficial to the properties of coating. DSC and TG diagrams also revealed that the application range of product was enlarged. It was also found that the fluorinated polyurethane had outstanding chemical resistance. Furthermore, it was found that the WCFPU micro-emulsion was a good finishing agent, endowing leather with water and oil resistance, natural brightness, softness, embonpoint and moist surface, and thus evidently improved the quality of leather. En ligne : https://drive.google.com/file/d/1IZfa9XaCrfcntckzzBF9mqqQhJSV55br/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=10809
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Code-barres Cote Support Localisation Section Disponibilité 012670 - Périodique Bibliothèque principale Documentaires Disponible Les produits intelligents ouvrent de multiples champs des possibles ! / Dominique Appert in PLASTILIEN, N° 122 (11/2015)
PermalinkResearch progress on self-crosslinking fluorocarbon acrylate polymers / Tantan Shao in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 209, N° 4655 (10/2019)
PermalinkRocket science gives surfactants a boost / Barry Rosenbaum in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 194, N° 4483 (12/2004)
PermalinkPermalinkPermalinkStructural organisations in polystyrene-based semifluorinated block copolymers for low surface energy coatings / G. Galli in SURFACE COATINGS INTERNATIONAL. PART B : COATINGS TRANSACTIONS, Vol. 87, B2 (06/2004)
PermalinkSurface active fluorosiloxanes / Michael J. Owen in SURFACE COATINGS INTERNATIONAL, Vol. 78, N° 2 (02/1995)
PermalinkSurface characterization of some porous natural stones modified with a waterborne fluorinated polysiloxane agent under physical weathering conditions / Ibrahim Ugur in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 11, N° 4 (07/2014)
PermalinkSurface treatment effects / Rory A. Wolf in ADHESIVES & SEALANTS INDUSTRY (ASI), Vol. 20, N° 10 (10/2013)
PermalinkSurface treatment with atmospheric plasma / Nicolas Vandencasteele in ADHESIVES & SEALANTS INDUSTRY (ASI), Vol. 27, N° 1 (01/2020)
PermalinkSynthesis and characterisation of acrylate-dibutyl fumarat polymer emulsion / Tingting Xu in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 206, N° 4617 (02/2016)
PermalinkSynthesis and properties of fluorinated non-isocyanate polyurethanes coatings with good hydrophobic and oleophobic properties / Zhijun Wu in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 16, N° 5 (09/2019)
PermalinkSynthesis of fluorinated acrylate polymer and preparation and properties of antifouling coating / Yan Zhang in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 12, N° 1 (01/2015)
PermalinkSynthesis of fluorinated polycarbonate-based polyurethane acrylate for UV-curable coatings / Jingcheng Liu in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 14, N° 1 (01/2017)
PermalinkSynthesis of fluorine-containing dispersions and an environmental scanning electron microscope analysis of their morphology when applied to cotton fabrics / Reinhard Linemann in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 69, N° 871 (08/1997)
PermalinkSynthesis of a novel fluorescent coloured copolymer based on 4-butylthio-1,8-naphthalimide / Bahareh Safabakhsh in COLORATION TECHNOLOGY, Vol. 128, N° 3 (2012)
PermalinkThermal, tensile, electrical, dynamic mechanical thermal and rheological properties of polyvinylidene fluoride and fluoroelastomer composites filled with carbon black / M. D. Moezzi in INTERNATIONAL POLYMER PROCESSING, Vol. XXXIV, N° 1 (03/2019)
PermalinkThermotropic, side-chain ordered polymeric coatings : gas permeability switching via a thermal stimulus / James Goetz in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 11, N° 2 (03/2014)
PermalinkTowards gradient structures in fluorinated acrylate and polyacrylate blend emulsions / Zhaoxia Yin in SURFACE COATINGS INTERNATIONAL, Vol. 101.4 (08-09/2018)
PermalinkTransparent UV curable fluorinated coatings / David Szum in EUROPEAN COATINGS JOURNAL (ECJ), N° 9/95 (09/1995)
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