Effects of fluorine and silicon components on the hydrophobicity failure behavior of acrylic polyurethane coatings / Fei Yang in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 14, N° 3 (05/2017)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 14, N° 3 (05/2017) . - p. 691-699 Titre : Effects of fluorine and silicon components on the hydrophobicity failure behavior of acrylic polyurethane coatings Type de document : texte imprimé Auteurs : Fei Yang, Auteur ; Liqun Zhu, Auteur ; Dongxiao Han, Auteur ; Weiping Li, Auteur ; Yichi Chen, Auteur ; Xianming Wang, Auteur ; Liang Ning, Auteur Année de publication : 2017 Article en page(s) : p. 691-699 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Analyse des défaillances (fiabilité) Copolymère uréthane acrylique Fluorine Hydrophobie Revêtements -- Analyse:Peinture -- Analyse Silicones Les silicones, ou polysiloxanes, sont des composés inorganiques formés d'une chaine silicium-oxygène (...-Si-O-Si-O-Si-O-...) sur laquelle des groupes se fixent, sur les atomes de silicium. Certains groupes organiques peuvent être utilisés pour relier entre elles plusieurs de ces chaines (...-Si-O-...). Le type le plus courant est le poly(diméthylsiloxane) linéaire ou PDMS. Le second groupe en importance de matériaux en silicone est celui des résines de silicone, formées par des oligosiloxanes ramifiés ou en forme de cage (wiki). Index. décimale : 667.9 Revêtements et enduits Résumé : Hydrocarbon acrylic copolymer was synthesized by a radical polymerization route. Fluorine-containing copolymer was prepared via a post-fluorine modification method. Hydrocarbon, fluorine-containing, silicon-containing, and fluorosilicone acrylic polyurethane coatings were prepared by curing reaction of the curing agents and mixtures of the synthesized copolymers and amino silicone, respectively. Indoor atmospheric environment, hygrothermal environment, different temperature environment, as well as xenon arc aging environment were employed to investigate the hydrophobicity failure behavior of the coatings. Chemical structure of the coatings was characterized by attenuated total reflectance Fourier transform infrared spectrum. Water contact angles of the coatings were monitored during the failure process. Thermostability of the coatings was explored by thermo gravimetric analysis. Surface morphology of the coatings was investigated by scanning electron microscopy. Elemental composition of the coating surface was analyzed by a X-ray photoelectron spectrometer. The results showed that the acrylic polyurethane coatings were prepared as expected. In addition, the modification mechanism determined the performance of the coatings in different environments. The fluorine-containing coating performed with better hydrophobicity in the indoor atmospheric environment, hygrothermal environment and low-temperature environment, but failed faster in the high temperature and xenon arc aging environments. The silicon-containing coating exhibited relatively stable hydrophobicity in the high temperature and the xenon arc aging environments. The hydrophobicity of the fluorosilicone coating fell in between that of the fluorine- and silicon-containing coatings under all of the experimental conditions. The fluorine-containing components improved the hydrophobicity of the coatings more effectively, while the silicon-containing components contributed more to the thermo and weather resistance property of the coatings. Note de contenu : - EXPERIMENTAL : Materials - Synthesis of copolymers and coating preparation - Environment experiments - Characterization - RESULTS AND DISCUSSION : Preparation of the acrylic polyurethane coatings - Hydrophobicity failure behavior of the coatings - SEM of the fluorosilicone coating before and after xenon arc aging environment - ATR-FTIR of the fluorosilicone before and after xenon arc aging environment DOI : 10.1007/s11998-016-9887-0 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-016-9887-0.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28577 [article]

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Facile creation of superhydrophobic surface with fluorine–silicon polymer under ambient atmosphere / Qianqian Shang in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 9, N° 5 (09/2012)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 9, N° 5 (09/2012) . - p. 589-595 Titre : Facile creation of superhydrophobic surface with fluorine–silicon polymer under ambient atmosphere Type de document : texte imprimé Auteurs : Qianqian Shang, Auteur ; Baosong Fu, Auteur ; Hu Liu, Auteur ; Mengyu Wang, Auteur ; Guomin Xiao, Auteur Année de publication : 2012 Article en page(s) : p. 589-595 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Angle de contact Copolymères Fluorine Fluoropolymères Hydrophobie Revêtements:Peinture Silicones Les silicones, ou polysiloxanes, sont des composés inorganiques formés d'une chaine silicium-oxygène (...-Si-O-Si-O-Si-O-...) sur laquelle des groupes se fixent, sur les atomes de silicium. Certains groupes organiques peuvent être utilisés pour relier entre elles plusieurs de ces chaines (...-Si-O-...). Le type le plus courant est le poly(diméthylsiloxane) linéaire ou PDMS. Le second groupe en importance de matériaux en silicone est celui des résines de silicone, formées par des oligosiloxanes ramifiés ou en forme de cage (wiki). Index. décimale : 667.9 Revêtements et enduits Résumé : A fluorine–silicon polymer of poly(styrene-co-1H,1H,2H,2H-perfluorooctyl methacrylate-co-vinyltriethoxysilane) (PSFV) was synthesized by bulk polymerization, and superhydrophobic surfaces were subsequently fabricated utilizing phase separation technique in one step by casting PSFV copolymer solution under ambient atmosphere. The PSFV copolymer was dissolved in tetrahydrofuran (THF), and then ethanol was added into the solution to induce phase separation. The surface morphologies of the copolymer films were controlled by the degree of phase separation, which could be tuned easily by the ethanol/THF volume ratio and the solution’s initial concentration. Scanning electron microscopy observations indicated that the superhydrophobic copolymer film had a rough surface with a binary hierarchical structure. A brief explanation of the formation of the special microstructure was put forward. The water contact angle and sliding angle of the superhydrophobic PSFV surface were measured as 162° and 4°, respectively. The simplicity of the operation’s process might make the superhydrophobic surface potentially useful in a variety of applications. Note de contenu : - EXPERIMENTAL : Materials - Synthesis of copolymer - Preparation of superhydrophobic copolymer film - Characterization - RESULTS AND DISCUSSION : Characterization of the PSFV copolymer - Preparation of superhydrophobic copolymer films DOI : 10.1007/s11998-012-9394-x En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-012-9394-x.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=16030 [article]

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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]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 10, N° 5 (09/2013) . - p. 621-629 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 surface DOI : 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 : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=19781 [article]

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Silicon overview / Tim Pajk in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 198, N° 4524 (05/2008)  

[article]  inPOLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 198, N° 4524 (05/2008) . - p. 42-43 Titre : Silicon overview Type de document : texte imprimé Auteurs : Tim Pajk, Auteur Année de publication : 2008 Article en page(s) : p. 42-43 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Fluorine Revêtements -- Additifs:Peinture -- Additifs Silicones Les silicones, ou polysiloxanes, sont des composés inorganiques formés d'une chaine silicium-oxygène (...-Si-O-Si-O-Si-O-...) sur laquelle des groupes se fixent, sur les atomes de silicium. Certains groupes organiques peuvent être utilisés pour relier entre elles plusieurs de ces chaines (...-Si-O-...). Le type le plus courant est le poly(diméthylsiloxane) linéaire ou PDMS. Le second groupe en importance de matériaux en silicone est celui des résines de silicone, formées par des oligosiloxanes ramifiés ou en forme de cage (wiki). Index. décimale : 667.9 Revêtements et enduits Résumé : Description the silicon-based technologies (SBTs) that advance the coatings industry and empower formulators to offer new functionality in various applications. In the past ten years, the number of new patents related to silicon-based materials for paints and coatings has increased exponentially, specifically those related to solving the problems traditionally addressed by SBTs, such as foam control, wetting and adhesion promotion. Dow Corning led many of these efforts and produces products for use in a wide range of coatings applications, including primers, heat-resistant coatings, industrial maintenance coatings, hygienic coatings, marine coatings, biocidal coatings, anti-fouling coatings, abrasion-resistant coatings, automotive clear coats and architectural coatings. Used as the primary component in a formulation or as an additive, these products impart enhanced performance attributes in high-performance applications. SBTs provide characteristics and performance attributes not foud in traditional organic coatings. Formulators use SBTs to differentiate their products and offer functionality for specific market needs. These include the need for low-VOC formulations; greater resistance to water, oil and stains; enhanced weatherability; increased thermal resistance; and superior texturing. SBTs are also non-toxic and provide utility at very low-use levels. Finally, many silicon materials combine easily with organic monomers and polymers, allowing formulators to develop specialised blends with the functionality of both organic and non-organic materials. Note de contenu : - Product chemistries for coatings applications - Fluorine technology - FIGURES : 1. Silane monomer - 2. Polydimethylsiloxane - 3. Polyorganosiloxane - 4. Silicone polyethers - 5. Structures can be a combination of the above, where R can be methyl and/or phenyl - 6. Siliconates - 7. Functionality of fluorosilicones - TABLE : Attributes of silicone and fluorine incorporated into fluorosilicone technology En ligne : https://drive.google.com/file/d/1TGkNW6tX_KxZonqFPSE2shtCCTQp-39B/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27211 [article]

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Smart coatings - Realistic dreams / Brijesh Mishra in PAINTINDIA, Vol. LXV, N° 11 (11/2015)  

[article]  inPAINTINDIA > Vol. LXV, N° 11 (11/2015) . - p. 53-60 Titre : Smart coatings - Realistic dreams Type de document : texte imprimé Auteurs : Brijesh Mishra, Auteur Année de publication : 2015 Article en page(s) : p. 53-60 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Aspect peau de requin Chimie biomimétique Fluorine Matériaux intelligents Propriétés anti-empreintes Revêtements antisalissures:Peinture antisalissures Revêtements:Peinture Silicones Les silicones, ou polysiloxanes, sont des composés inorganiques formés d'une chaine silicium-oxygène (...-Si-O-Si-O-Si-O-...) sur laquelle des groupes se fixent, sur les atomes de silicium. Certains groupes organiques peuvent être utilisés pour relier entre elles plusieurs de ces chaines (...-Si-O-...). Le type le plus courant est le poly(diméthylsiloxane) linéaire ou PDMS. Le second groupe en importance de matériaux en silicone est celui des résines de silicone, formées par des oligosiloxanes ramifiés ou en forme de cage (wiki). Index. décimale : 667.9 Revêtements et enduits Résumé : There are several number of development activities which aim to bring functionalities to polymer-coating systems. "Smart coatings" is one of the areas which has stimulated a great deal of progress. Materials, which are capable of adapting dynamically their properties to an external stimulus, are called responsive or "smart". This article will summaryze recent developments in the field of smart coatings with some of examples like shark skin coatings, biomimetic antifouling coatings, anti fingerprint coating etc. Note de contenu : - Examples of smart coatings - SHARK SKIN EFFECT COATINGS - BIOMIMETIC ANTIFOULING - BIOMIMETIC METHOD - PHYSICAL METHODS : A. Mussel adhesive proteins - B. Barnacle cement - CHEMICAL METHODS - ANTI-FINGERPRINT COATINGS & EASY CLEAN : Silicon-based product - Fluorine based product En ligne : https://drive.google.com/file/d/1ELblEPTUo201ISv3LX44HIurp8hJmth9/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=25265 [article]

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Synthesis and characterization of fluorine-containing poly-styrene-acrylate latex with core–shell structure using a reactive surfactant / Guilong Xu in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 8, N° 3 (05/2011)  

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