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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).
Silicones
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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).
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Dynamic light scattering and zeta potential of a leather finishing system / Xia Yan in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 96, N° 1 (01-02/2012)
[article]
Titre : Dynamic light scattering and zeta potential of a leather finishing system Type de document : texte imprimé Auteurs : Xia Yan, Auteur ; Zhao Pengxiang, Auteur ; Wuyong Chen, Auteur Année de publication : 2012 Article en page(s) : p. 32-36 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Colorants
Cuirs et peaux -- Finition
Polyacryliques
Polymères en émulsion
Polyuréthanes
Potentiel zeta
SiliconesLes 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 : 675 Technologie du cuir et de la fourrure Résumé : Finishing is one of the significant steps in the process by which the tanning industry transforms leather into an end-product. Therefore, a deep study of the finishing system is necessary to help the control of this step and bring innovation to the finishing process. Based on principles of dynamic light scattering (DLS) and zeta potential, the stability of a leather finishing system was investigated. Polyrethane and acrylic resin were used to prepare a single finishing system and wax emulsion, silicone oil and pigment paste were added to the single finishing system to make three binary finishing systems, then a ternary system was prepared by adding was emulsion and silicone oil to the single finishing system.
The particle size and zeta potential of the single, binary and ternary finishing systems were characterized using the zetasizer nano-ZS (Malvern Instruments Ltd., UK). The results showed that the stability of the finishing system was not affected with the addition of was emulsion and silicone oil, because the zeta potential was always greater than 30mv, however ; a significant decrease of zeta potential was observed due to the addition of pigment to the finishing system, which indicates a decrease of the finishing system's stability. The results provide a comprehensive and theoretical understanding of the interactions among materials in a finishing system.Note de contenu : - EXPERIMENTALE PROCEDURE : Materials - Preparationof samples for the test of particle size and zeta potential - Measurement of particle size distribution and zeta potential of finishing system
- RESULTS AND DISCUSSION : Particle size distribution - Zeta potential of finishing systemEn ligne : https://drive.google.com/file/d/1sLX_CMIVNamg502Rrvg4YI-sRkBuUw3j/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=13552
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 96, N° 1 (01-02/2012) . - p. 32-36[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 13659 - Périodique Bibliothèque principale Documentaires Disponible Effect of polysiloxane additives on the scratch resistance of an acrylic melamine automotive clearcoat / Bahram Ramezanzadeh in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 9, N° 2 (03/2012)
[article]
Titre : Effect of polysiloxane additives on the scratch resistance of an acrylic melamine automotive clearcoat Type de document : texte imprimé Auteurs : Bahram Ramezanzadeh, Auteur ; Siamak Moradian, Auteur ; Alireza Khosravi, Auteur ; N. Tahmassebi, Auteur Année de publication : 2012 Article en page(s) : p. 203-214 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Automobiles -- Vernis
Dureté (matériaux)
Microscopie
Microscopie électronique
Résistance à l'abrasion
SiliconesLes 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).
Vernis -- Additifs
ViscoélasticitéIndex. décimale : 667.9 Revêtements et enduits Résumé : Many attempts have been carried out to increase the scratch resistance of clearcoats using various appropriate additives. These additives may increase surface hardness or surface slippage, and/or enhance the bulk mechanical strength of the clearcoat. In the present study, the influence of various added loads of three differently structured polysiloxane additives on the scratch resistances of an acrylic melamine clearcoat was investigated. A series of analytical instruments, such as a laboratory carwash simulator, a scanning electron microscope, an optical microscope and an attenuated total reflectance Fourier transform infrared spectroscope, and others were used to compare the effects of the various added contents of polysiloxane additives on changes in the viscoelastic properties and scratch morphologies of the resultant clearcoats. The results illustrated that all polysiloxane additives improve the scratch resistance of such clearcoats, yet the optimum load varied for each individual additive. There is also a good indication that polyether-modified polysiloxanes improve scratch resistance by increasing surface hardness, while the fluorocarbon-modified polysiloxane tends to change the viscoelastic properties of the clearcoats. It was also found that scratch resistance varied linearly with Micro-Vickers’ hardness for brittle clearcoats. Note de contenu : - EXPERIMENT : Investigated paint system - Scratch test
- MECHANICAL PROPERTIES : Microindentation - Tensile test
- SURFACE ANALYSES : ATR-FTIR spectroscopy - Surface roughnessDOI : 10.1007/s11998-010-9239-4 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-010-9239-4.pdf?pdf=button Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=14373
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 9, N° 2 (03/2012) . - p. 203-214[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 14096 - Périodique Bibliothèque principale Documentaires Disponible Effective protection against graffiti and more in SURFACE COATINGS INTERNATIONAL, Vol. 102.4 (08-09/2019)
[article]
Titre : Effective protection against graffiti and more Type de document : texte imprimé Année de publication : 2019 Article en page(s) : p. 176-178 Langues : Anglais (eng) Catégories : Revêtements anti-graffitis
Revêtements protecteurs
SiliconesLes 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).
VernisIndex. décimale : 667.9 Revêtements et enduits Résumé : The problem of graffiti causes immense damage to cities, communities and homeowners. Removing these aggressive spray paints is extremely costly, damages the building fabric and can lead to an entire property dropping in value. However, Wacker has developed a new, highly effective anti-graffiti product, which permanently protects surfaces with a thin film of silicone. Graffiti and stickers can be readily washed off with just cold water. Note de contenu : - Graffiti paints penetrate deeply into building fabric
- Removal can damage the building's fabric
- Silicone-based paint barrier
- Successful tests in Burghausen
- No harmful ingredients
- Colourful protective coatings possible
- Silicone film is elastic, resists UV and heat
- From temporary to permanent - an overview of key anti-graffiti technologies
- Just wipe it : a sponge and cold water suffice for cleaning
- Silicone protection lowers surface tension
- No microorganisms thanks to breathable siliconesEn ligne : https://drive.google.com/file/d/1Ud6kZeWj7_ZsO80gkESIlBGrzbk-lngs/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32817
in SURFACE COATINGS INTERNATIONAL > Vol. 102.4 (08-09/2019) . - p. 176-178[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 21103 - Périodique Bibliothèque principale Documentaires Disponible 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]
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
SiliconesLes 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 environmentDOI : 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 : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28577
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 14, N° 3 (05/2017) . - p. 691-699[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 18899 - Périodique Bibliothèque principale Documentaires Disponible Effects of pigmentation on siloxane-polyurethane coatings and their performance as fouling-release marine coatings / Stacy A. Sommer in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 8, N° 6 (11/2011)
[article]
Titre : Effects of pigmentation on siloxane-polyurethane coatings and their performance as fouling-release marine coatings Type de document : texte imprimé Auteurs : Stacy A. Sommer, Auteur ; Joseph R. Byrom, Auteur ; Hanna D. Fischer, Auteur ; Rajan B. Bodkhe, Auteur ; Shane J. Stafslien, Auteur ; Justin W. Daniels, Auteur ; Carolyn Yehle, Auteur ; Dean C. Webster, Auteur Année de publication : 2011 Article en page(s) : p. 661-670 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Marines (peinture)
Polyuréthanes
Revêtements autostratifiants:Peinture autostratifiante
Salissures marines
SiliconesLes 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 : Siloxane-polyurethane paints were formulated and characterized for coating properties and performance as fouling-release (FR) marine coatings. Paints were formulated at 20 and 30 pigment volume concentrations with titanium dioxide, and aminopropyl-terminated poly (dimethylsiloxane) (APT-PDMS) loadings were varied from 0 to 30% based on binder mass. The coatings were characterized for water contact angle, surface energy (SE), gloss, and pseudo-barnacle (PB) adhesion. The assessment of the FR performance compared with polyurethane (PU) and silicone standards through the use of laboratory biological assays was also performed. Biofilm retention and adhesion were conducted with the marine bacterium Cellulophaga lytica, and the microalgae diatom Navicula incerta. Live adult barnacle reattachment using Amphibalanus amphitrite was also performed. The pigmented coatings were found to have properties and FR performance similar to those prepared without pigment. However, a higher loading of PDMS was required, in some cases, to obtain the same properties as coatings prepared without pigment. These coatings rely on a self-stratification mechanism to bring the PDMS to the coating surface. The slight reduction in water contact angle (WCA) and increase in pseudobarnacle release force with pigmentation suggests that pigmentation slowed or interfered with the self-stratification mechanism. However, increasing the PDMS loading is an apparent method for overcoming this issue, allowing for coatings having similar properties as those of clear coatings and FR performance similar to those of silicone standard coatings. Note de contenu : - Materials
- Acrylic polyol preparation and characterization
- APT-PDSM preparation
- Rapid GPC
- Pigment grind preparation
- Pigmented siloxan-polyurethane coating formulation
- Siloxane-polyurethane preparation
- WCA and SE characterizations
- Gloss
- Pseudobarnacle (PB) adhesion
- Preleaching andleachate toxicity analysis
- Cellulophaga lytica biofilm retention and adhesion
- Navicula incerta attachment and adhesion
- Amphibalanus amphitrite adult barnacle reattachment assayDOI : 10.1007/s11998-011-9340-3 En ligne : http://download.springer.com/static/pdf/657/art%253A10.1007%252Fs11998-011-9340- [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12593
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 8, N° 6 (11/2011) . - p. 661-670[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 13484 - Périodique Bibliothèque principale Documentaires Disponible PermalinkPermalinkLes élastomères fluorosilicones à la conquête du turbodiesel / Dave Lawson in PLASTIQUES & CAOUTCHOUCS MAGAZINE, N° 844 (11/2006)
PermalinkElastomères silicones - Classe 51 - Caractéristiques - Norme NF L 17-151 / Bureau de Normalisation de l'Aéronautique et de l'Espace / Issy-les-Moulineaux : BNAE (1985)
PermalinkElastomères silicones - Classe 53 - Caractéristiques - Norme NF L 17-153A / Bureau de Normalisation de l'Aéronautique et de l'Espace / Issy-les-Moulineaux : BNAE (1985)
PermalinkLes élastomères silicones thermoplastiques : un éternel recommencement / François Ganachaud in L'ACTUALITE CHIMIQUE, N° 456-457-458 (11-12/2020 - 01/2021)
PermalinkEnduction transfert de silicones / Bertrand Bordes in TEXTILES A USAGES TECHNIQUES (TUT), N° 64 (06-07-08/2007)
PermalinkEnhancing assembly line efficiencies with silicone foams / Michael Hartmann in ADHESIVES & SEALANTS INDUSTRY (ASI), Vol. 24, N° 1 (01/2017)
PermalinkEnvironmentally friendly coatings / Walter Göblmeier in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 198, N° 4525 (06/2008)
PermalinkEvaluation method of the resistance of adhesives / Elisabeth Stammen in ADHESION - ADHESIVES + SEALANTS, Vol. 14, N° 2/2017 (2017)
PermalinkEvaluation of additive manufacturing processes with liquids and pastes / Simon Kasböck in ADHESION - ADHESIVES + SEALANTS, Vol. 16, N° 2/2019 (2019)
PermalinkExpanding applications for silicone chemistry / Cynthia Challener in COATINGS TECH, Vol. 16, N° 2 (02/2019)
PermalinkExploring the chemistry behind silicone-based release additives / Thorsten Schierle in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 206, N° 4623 (08/2016)
PermalinkFacile 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)
PermalinkFacile fabrication of robust superhydrophobic cotton fabrics modified by polysiloxane nanowires for oil/water separation / Bin Wang in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 15, N° 3 (05/2018)
PermalinkFacile fabrication of superhydrophobic alloy surface based on room temperature vulcanized silicone modification / Shangda Chen in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 16, N° 4 (07/2019)
PermalinkFacile fabrication of superhydrophobic polysiloxane/magnetite nanocomposite coatings with electromagnetic shielding property / Xiaofeng Ding in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 8, N° 6 (11/2011)
PermalinkField testing and ecotoxicity of acrylate-based sol–gel coatings in fresh and seawater / Damir Hamulic in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 20, N° 2 (03/2023)
PermalinkPermalinkFlame-retardant foam gaskets : Fire proof and high performing / Albert Schmid in ADHESIVES & SEALANTS INDUSTRY (ASI), Vol. 21, N° 9 (09/2014)
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