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UV-curable fluorinated polycarbonate polyurethane with improved surface properties / Yan Yuan in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 17, N° 3 (05-06/2020)
[article]
Titre : UV-curable fluorinated polycarbonate polyurethane with improved surface properties Type de document : texte imprimé Auteurs : Yan Yuan, Auteur ; Li Jihang, Auteur ; Yanmao Dong, Auteur ; Hui Miao, Auteur Année de publication : 2020 Article en page(s) : p. 777-783 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Caractérisation
Fluoropolymères
Hydrophobie
Oléophobie
Photoréticulation
Polycarbonates
Polyuréthanes
Revêtements -- Séchage sous rayonnement ultraviolet
Revêtements organiquesIndex. décimale : 667.9 Revêtements et enduits Résumé : A series of UV-curable fluorinated polycarbonate polyurethanes (FCPUAs) were synthesized by modifying polycarbonate polyurethane with 2-(perfluorohexyl)ethanol (PFHE) and glycidyl methacrylate (GMA). The structures of FCPUAs were analyzed with 1H NMR and FTIR. Different contents of FCPUAs were blended into non-fluorinated polycarbonate polyurethane as fluorinated additives. The water and oil contact angles of the films were investigated by contact angle measurement, and the results indicated that an extremely low concentration of FCPUAs could produce a highly hydrophobic and oleophobic coating. The X-ray photoelectron spectroscopic analysis showed that the coating surface was rich in fluorinated species. Besides, the films containing FCPUAs also had great tensile strength, hardness and adhesion. Note de contenu : - EXPERIMENTAL : Materials - Measurements - Synthesis of UV-curable fluorinated polycarbonate polyurethanes (FCPUAs) and polycarbonate polyurethane (CPUA) - Preparation of FPU series UV-curing coatings
- RESULTS AND DISCUSSION : Characterization of FCPUAs and CPUA - Surface properties of the UV-cured films - Mechanical properties of the UV-cured filmsDOI : https://doi.org/10.1007/s11998-020-00329-0 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-020-00329-0.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34107
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 17, N° 3 (05-06/2020) . - p. 777-783[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 21734 - Périodique Bibliothèque principale Documentaires Disponible UV/EB curable laminating oligomer for adhesion / Deborah A. Smith in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 198, N° 4526 (07/2008)
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Titre : UV/EB curable laminating oligomer for adhesion Type de document : texte imprimé Auteurs : Deborah A. Smith, Auteur Année de publication : 2008 Article en page(s) : p. 20-23 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Adhésion
Oligomères
Polyacryliques
Polycarbonates
Polyéthylène téréphtalate
Polyméthacrylate de méthyleLe poly(méthacrylate de méthyle) (souvent abrégé en PMMA, de l'anglais Poly(methyl methacrylate)) est un polymère thermoplastique transparent obtenu par polyaddition dont le monomère est le méthacrylate de méthyle (MMA). Ce polymère est plus connu sous son premier nom commercial de Plexiglas (nom déposé), même si le leader global du PMMA est Altuglas International9 du groupe Arkema, sous le nom commercial Altuglas. Il est également vendu sous les noms commerciaux Lucite, Crystalite, Perspex ou Nudec.
Revêtements -- Séchage sous rayonnement électronique
Revêtements -- Séchage sous rayonnement ultraviolet
Revêtements protecteurs
Stratifiés
Transparence (optique)Index. décimale : 667.9 Revêtements et enduits Résumé : Laminating oligomer for various metals, glass and semi-rigid plastic substrates.
Unless you have the transmission/absorbance spectra for the type of substrate that you are using, the preferred UV energy source is the D or V bulb. A preferred photoinitiator for the lamination is Irgacure 819 due to its absorbance in the 360-390nm range.Note de contenu : - Electromagnetic spectrum and photoinitiator selection
- Experimental
- Poly(methyl methacrylates) - PMMA
- Acrylic
- Polycarbonate
- Polyethylene terephtalate (PET)
- Other plastic substratesEn ligne : https://drive.google.com/file/d/1-cn9b7DbPwcpXNU6ZrH5s8rS-tCiWuMp/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27176
in POLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 198, N° 4526 (07/2008) . - p. 20-23[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 010612 - Périodique Bibliothèque principale Documentaires Disponible UV-pre-treatment for polycarbonate for bonding LSR in a multi-component injection molding process / Christof Ulrich Schlitt in INTERNATIONAL POLYMER PROCESSING, Vol. XXXIV, N° 1 (03/2019)
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Titre : UV-pre-treatment for polycarbonate for bonding LSR in a multi-component injection molding process Type de document : texte imprimé Auteurs : Christof Ulrich Schlitt, Auteur ; M. Hartung, Auteur ; A. Rüppel, Auteur ; R.-U. Giesen, Auteur ; Hans-Peter Heim, Auteur Année de publication : 2019 Article en page(s) : p. 30-36 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Angle de contact
Collage
Energie de surface
Essais de pelage
Matières plastiques -- Moulage par injection multicomposant
Ozone
Polycarbonates
Rayonnement ultravioletIndex. décimale : 668.4 Plastiques, vinyles Résumé : In this study, the influence of UVC radiation and the influence of ozone on the surface energy of specimens made of polycarbonate were investigated. In an additional step, the peeling resistance of silicone flaps, which were overmolded, onto pre-treated PC plates of multicomponent specimens were analyzed. For this purpose, the samples were exposed to UVC radiation for different lengths of time, ranging from 5 s to 3 600 s. To further evaluate the influence of the ozone created by the UVC in the presence of oxygen, treatments were also performed in pure oxygen and nitrogen atmospheres. Contact angle measurements as well as analyses of the surface roughness were carried out to evaluate the effect of the treatment. Two phenomena were identified during the investigations. In room air and oxygen atmospheres, a short-term effect of UVC radiation was observed, which led to an increase in the surface energy, and, therefore, also to an increase in the wettability after an exposure time of only 10 s. In addition, a long-term effect was also found when tests were performed in a nitrogen atmosphere. This effect became visible after at least 60 s, and increased over the course of the duration exposure. The surface roughness of the polycarbonate plates increased up to about 60 % after 10 s of UVC exposure time in an air atmosphere, after 300 s of exposure to UVC radiation the roughness values had more than doubled. A modular injection molding tool was designed for the production of multi-component specimens. In this tool, a thermoplastic plate is molded on the one side, and is then automatically transferred by a robot system to be overmolded with silicone on the other side. The employed injection molding technique makes an intermediate treatment, such as surface activation of the thermoplastic plate, possible before it is overmolded. Also, the short-term and long-term effects of UVC treatment were able to be verified again for the peeling resistance of the material. These tests were only carried out for specimens treated in air. Note de contenu : - OBJECTIVES
- EXPERIMENTAL : Materials - UVC/ozone treatment - Test methods
- Results and discussion : Contact angle and surface energy - Surface roughness - Peeling resistance of pre-treated multi-component specimens - DiscussionDOI : 10.3139/217.3509 Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31909
in INTERNATIONAL POLYMER PROCESSING > Vol. XXXIV, N° 1 (03/2019) . - p. 30-36[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 20669 - Périodique Bibliothèque principale Documentaires Disponible Virtual demolding forces / Walter Michaeli in KUNSTSTOFFE INTERNATIONAL, Vol. 102, N° 6 (06/2012)
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Titre : Virtual demolding forces Type de document : texte imprimé Auteurs : Walter Michaeli, Auteur ; Christian Hopmann, Auteur ; Ivo Erler, Auteur Année de publication : 2012 Article en page(s) : p. 35-38 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Contraintes (mécanique)
Démoulage
Matières plastiques -- Moulage par injection
Polycarbonates
Simulation par ordinateurIndex. décimale : 668.4 Plastiques, vinyles Résumé : Mold Design - Timely simulation to check the mold concept for injection molding is a key element in the successful launch of a product. The simulation plays an important role in developing fit-for-purpose molds in a shorter time and at lower cost. Note de contenu : - Characterization of the material's mechanical behavior
- In-process friction measurements
- Computational method combines injection molding and structural simulation
- Accuracy of the simulation results confirmedPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=16249
in KUNSTSTOFFE INTERNATIONAL > Vol. 102, N° 6 (06/2012) . - p. 35-38[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 13986 - Périodique Bibliothèque principale Documentaires Disponible Wafer-thin and tension-free / Gil Scheuermann in KUNSTSTOFFE INTERNATIONAL, Vol. 103, N° 8 (08/2013)
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Titre : Wafer-thin and tension-free Type de document : texte imprimé Auteurs : Gil Scheuermann, Auteur ; Ulrich Sieman, Auteur ; Sandra Kübler, Auteur Année de publication : 2013 Article en page(s) : p. 70-72 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Films coulés
Films plastiques -- Propriétés mécaniques
Matériaux hautes performances
Matières plastiques -- Applications industrielles
PolycarbonatesIndex. décimale : 668.4 Plastiques, vinyles Résumé : Solvent cast films - The technology of solvent casting allows ultra-thin and tension-free films of the highest purity to be produced which are characterized by excellent thickness tolerances. In view of these properties, solvent cast films have established themselves in many areas as an important intermediate. They are used in numerous high-tech applications. Note de contenu : - Purity, freedom from tension, heat resistance
- Plastic film capacitors
- High-performance films in acoustics
- Fig. 1 - Process diagram for the production of solvent cast films
- Fig. 2 - Schematic diagram of a film capacitor with metalized electrodes
- Fig. 3 - Capacity change of PET and PC film at temperature changes. PC films shows a significantly more constant behavior than PET
- Table 1 - Benefits of the solvent casting technology and selected application examples (advantages, technical application examples - Optical application examples)
- Table 2 - Materials for film capacitors and raw materials manufacturers' dataPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=22946
in KUNSTSTOFFE INTERNATIONAL > Vol. 103, N° 8 (08/2013) . - p. 70-72[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 15395 - Périodique Bibliothèque principale Documentaires Disponible Well protected against electromagnetic interference / Marnik Vaes in KUNSTSTOFFE INTERNATIONAL, Vol. 111, N° 1 (2021)
PermalinkWhat is the most suitable material combination / Christian Hopmann in KUNSTSTOFFE INTERNATIONAL, Vol. 112, N° 2 (2022)
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