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The perfect shaft in INTERNATIONAL SURFACE TECHNOLOGY (IST), Vol. 12, N° 3 (2019)
[article]
Titre : The perfect shaft Type de document : texte imprimé Année de publication : 2019 Article en page(s) : p. 22-23 Langues : Anglais (eng) Catégories : Arbre de transmission
Automobiles -- Pièces
Automobiles -- Revêtements:Automobiles -- Peinture
Dépôt par pulvérisation
Peinture au pistolet
Polytétrafluoréthylène
Revêtement en plastique
Revêtements poudreIndex. décimale : 667.9 Revêtements et enduits Résumé : The powder coatings used on drive shafts need to fulfil special requirements because of the wide variety of different shafts being produced and the high quality standards of the car manufacturers. These components often have to be processed in a very short time. In addition, they must have reliable corrosion protection and a premium-quality appearance. Note de contenu : - 5000 complete systems per year
- A variety of uses for thermal coatings
- A race against time
- Fig. 1 : After the shafts have beendegreased, masked and blasted, the plastic powder is applied electrostatically using a spray gun and then cross-linked in the oven
- Fig. 2 : The tailor-made driveline components, including drive shafts couplings, joints and sleeves, are coated with PTFE to protect them from corrosion and give them a high-quality appearance
- Fig. 3 : The partial masking process requires a lot of care and experience because of the large number of inaccessible areas and special coversPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33847
in INTERNATIONAL SURFACE TECHNOLOGY (IST) > Vol. 12, N° 3 (2019) . - p. 22-23[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 21131 - Périodique Bibliothèque principale Documentaires Disponible The properties' champions league / Susanne Baumann in KUNSTSTOFFE INTERNATIONAL, Vol. 107, N° 6-7 (06-07/2017)
[article]
Titre : The properties' champions league : Modifying high-performance plastics for specific applications and thermoplastic processing Type de document : texte imprimé Auteurs : Susanne Baumann, Auteur ; Harald Schober, Auteur Année de publication : 2017 Article en page(s) : p. 22-23 Langues : Anglais (eng) Catégories : Joints d'étanchéité
Polyéther éther cétone
PolytétrafluoréthylèneIndex. décimale : 668.4 Plastiques, vinyles Résumé : Due to its high melt viscosity and its melting point of over 327 °C, polytetrafluoroethylene cannot be processed by common thermoplastic processes. However, appropriate modification makes this high-performance plastic workable from the melt, thereby enabling economical large series production. This will be elaborated here on two sealing applications. Note de contenu : - Spring-supported seal
- Sealing lip from PTFE compound
- Combined PTFE and PEEK
- Fig. 1. A spring-supported seal for a ball segment used in an engine cooling water circuit. It is made from modified PTFE, processed by injection molding, and demonstrates the usefulness of this material - for medicinal areas as well
- Fig. 2. This component is instsalled in housing covers in a vehicle engine compartment. It consists of a front cover made from 30% glass-fiber-reinforced polyamide with an encapsulated sealing lip made from a PTFE compound. It also contains a metal insert and is designed for rapid installation.En ligne : https://drive.google.com/file/d/16y-8iwAZ3ngIczllXjg8c4u74nJgTrQB/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28997
in KUNSTSTOFFE INTERNATIONAL > Vol. 107, N° 6-7 (06-07/2017) . - p. 22-23[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 19168 - Périodique Bibliothèque principale Documentaires Disponible Use of fluoropolymer permanent release coatings for molded polyurethane foam production / Leandro Figueiredo in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 9, N° 6 (11/2012)
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Titre : Use of fluoropolymer permanent release coatings for molded polyurethane foam production Type de document : texte imprimé Auteurs : Leandro Figueiredo, Auteur ; Pedro Bandeira, Auteur ; Adélio Mendes, Auteur ; Margarida M. S. M. Bastos, Auteur ; Fernà o D. Magalhà es, Auteur Année de publication : 2012 Article en page(s) : p. 757-764 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Démoulage
Fluoropolymères
Isocyanates
Mousses plastiques
Polytétrafluoréthylène
Polyuréthanes
RevêtementsIndex. décimale : 667.9 Revêtements et enduits Résumé : The problem of adhesion of polyurethane foams to fluoropolymer permanent release mold coatings was studied. Two coatings, based on polytetrafluoroethylene (PTFE) and perfluoroalkoxy polymer (PFA) aqueous dispersions, respectively, were applied on aluminum plates, and the foam release performance evaluated. The PTFE coating displayed gradual loss of antiadhesion properties with consecutive exposure to the reactive mixture, which was associated with isocyanate surface penetration. Penetrant mass uptake experiments, performed on free films, indicated that PTFE retains about 10 times more isocyanate than PFA, probably because of its porous surface morphology. A synergistic effect was found by applying a very small quantity of a waterborne release agent on the PTFE coating, before every foam molding cycle. The release agent formed a protective barrier that minimized contact of the coating with the reactive mixture, allowing for stable and robust foam release performance. The problem of polyurea build-up, associated with the use of aqueous release agents, was not observed because of the small amounts of compound used. Note de contenu : - EXPERIMENTAL : Materials - Polyurethand foam formulation and molding - Evaluation - Evaluation of the release force and release force and release work - FTIR spectrocopy - Scanning electron microscopy - Penetrant mass uptake measurements
- RESULTS AND DISCUSSION : Surface morphology - Penetrant mass uptake - Foam release performance of PTFE and PFA coatings - Performance of PTFE coating combined with release agentDOI : 10.1007/s11998-012-9413-y En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-012-9413-y.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=16661
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 9, N° 6 (11/2012) . - p. 757-764[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 14359 - Périodique Bibliothèque principale Documentaires Disponible Validation of adhesion characterization methods for antistick coatings applied in cooking systems / Stefano Rossi in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 19, N° 4 (07/2022)
[article]
Titre : Validation of adhesion characterization methods for antistick coatings applied in cooking systems Type de document : texte imprimé Auteurs : Stefano Rossi, Auteur ; Federico Valdrè, Auteur ; Massimo Calovi, Auteur Année de publication : 2022 Article en page(s) : p. 1287-1301 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Anti-adhérence (matériaux)
Caractérisation
Essais d'adhésion
Essais de résilience
Essais dynamiques
Polytétrafluoréthylène
Revêtements -- Propriétés mécaniques
Revêtements organiques
Sol-gel, ProcédéIndex. décimale : 667.9 Revêtements et enduits Résumé : This study aims to validate an effective methodological analysis for the characterization of the adhesion values of antistick coatings employed in cooking systems. The morphology and chemistry of four different industrial products were investigated by roughness measurements, electron microscopy observations and infrared spectroscopy analysis. The adhesion of the coatings was evaluated comparing various techniques, such as the surface contact angle measurements, the pull-off test and the single lap-joint tensile shear method, in synergy with degradation phenomena simulated by P.E.I. abrasion and dishwashing tests. The single lap-joint tensile shear test was able to evaluate evident differences between all the proposed coatings, regardless of their state of deterioration, featuring the best selectivity among the used methods. However, the pull-off test proved to be a viable and more economical alternative for fast evaluation techniques, considering the overall instrument costs. While all the polytetrafluoroethylene-based systems turned out to be totally uninfluenced by the chemical attacks performed during the dishwasher cycles, the sol–gel coating exhibited lower performances of the applied releasing agent, before and after the mechanical degradation tests. Therefore, sol–gel coatings, despite being proposed as valid alternatives to PTFE ones, do not achieve the same quality standards in terms of releasing properties, being in addition much more sensible to degradation and loss in performances. Note de contenu : - EXPERIMENTAL : Materials - Characterization
- RESULTS AND DISCUSSION : Coatings characterization - Antistick properties evaluation - Wear and abrasion resistance - Antistick and degradation correlations
- Table 1 : Coatings used for antistick methods validationDOI : https://doi.org/10.1007/s11998-022-00611-3 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-022-00611-3.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38054
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 19, N° 4 (07/2022) . - p. 1287-1301[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 23574 - Périodique Bibliothèque principale Documentaires Disponible Water-repellent coating for mobile phone microphones / G. Yamauchi in SURFACE COATINGS INTERNATIONAL. PART B : COATINGS TRANSACTIONS, Vol. 88, B4 (12/2005)
[article]
Titre : Water-repellent coating for mobile phone microphones Type de document : texte imprimé Auteurs : G. Yamauchi, Auteur ; N. Funakoshi, Auteur ; T. Shimizu, Auteur ; Y. Yasuno, Auteur ; Y. Riko, Auteur Année de publication : 2005 Article en page(s) : p. 281-283 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Dioxyde de titane
Imperméabilisation
Liants
Nanoparticules
Perfluoropolyéther
Photocatalyse
Polyfluorure de vinylidène
Polytétrafluoréthylène
Revêtements organiquesIndex. décimale : 667.9 Revêtements et enduits Résumé : A water-repellent coating material has been developed which is composed of low molecular-weight poly(tetrafluoroethylene) (PTFE) particles and anatase-type photocatalytic TiO2 nano particles, fluoro-oil (perfluorinated polyether) and a polyvinylidene fluoride binder. The presence of these PTFE particles in the coating material makes it possible for the water-repellency properties of this material to be improved by achieving a water contact angle of more than 150�. The photocatalytic activity of the TiO2 particles incorporated in the water-repellent coating inhibits the surface contamination which previously had caused the deterioration of the water-repellent properties. This water-repellent coating can be applied to mobile phone microphones. The water repellency of the electret condenser microphone improves the durability of the mobile phone. Note de contenu : - INTRODUCTION : Material preparation
- WATER-REPELLENT PROPERTY
- APPLICATION TO MOBILE PHONE MICROPHONES : Basic structure of ECM - Acoustic characteristicsDOI : 10.1007/BF02699585 En ligne : https://link.springer.com/content/pdf/10.1007/BF02699585.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5408
in SURFACE COATINGS INTERNATIONAL. PART B : COATINGS TRANSACTIONS > Vol. 88, B4 (12/2005) . - p. 281-283[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 003404 - Périodique Bibliothèque principale Documentaires Disponible Wear and corrosion properties of electroless nickel composite coatings with PTFE and/or MoS2 particles / M. Mohammadi in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 8, N° 4 (07/2011)
PermalinkWhy fluorine in coatings ? / J. H. Holloway in SURFACE COATINGS INTERNATIONAL, Vol. 78, N° 2 (02/1995)
PermalinkY-a-t-il de la place pour les piles à combustible dans la transition énergétique ? / Ozlem Sel in L'ACTUALITE CHIMIQUE, N° 400-401 (10-11/2015)
PermalinkZn-PTFE composite coating - an alternative for functional coatings / L. DiblÃková in MATERIAUX & TECHNIQUES, Vol. 101, N° 1 (2013)
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