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A self-assembled, silicone acrylate coating formulation and detection of the optically non-uniform structure with reflectance spectroscopy / Kohei Masuda in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 16, N° 4 (07/2019)
[article]
Titre : A self-assembled, silicone acrylate coating formulation and detection of the optically non-uniform structure with reflectance spectroscopy Type de document : texte imprimé Auteurs : Kohei Masuda, Auteur ; Kazuhiro Tsuchida, Auteur ; Tomohiro Inoue, Auteur ; Mary Gilliam, Auteur Année de publication : 2019 Article en page(s) : p. 923-931 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Copolymère silicone acrylate
Copolymères -- Synthèse
Essais accélérés (technologie)
Formulation (Génie chimique)
Polycarbonates
Revêtements -- Séchage sous rayonnement ultraviolet
Revêtements organiques
Systèmes auto-assemblés
VitrageIndex. décimale : 667.9 Revêtements et enduits Résumé : A newly synthesized, single-step silicone acrylate formulation cured by conventional radiation produced a reflection spectrum that showed an unusual interference pattern for a single-step coating. The acrylate was prepared by transesterification of silicate oligomer with ω-functionalized acrylic alcohol. The reflectance spectrum was analyzed by means of the Fourier transformation, followed by a separation of variables and constrained conditions. The separation of variables was based on the refractive index as a function of the layer depth, which revealed the coating was non-uniform in refractive index. An interface within the coating was independently observed by microscopy, showing that the coating separated into two layers, supporting the numerical analysis. Although the coating was manufactured by a single-step coating process, the two-layer structure that was formed is normally constructed with multiple coating processes, such as applications of a primer and a top coat. Experiments varying the formulation components show that the new silicone acrylate and an aliphatic di-functional acrylic ester were essential components for the formation of the two-layer structure. Outdoor weathering results are presented after 1 year of testing in Florida and Arizona, which showed better performance than conventional coating systems. Note de contenu : - EXPERIMENTAL : Synthesis - Preparation of radiation-curable formulations and coated plaques - Sample analysis - Weathering test
- RESULTS AND DISCUSSION : Reflection spectra - Numerical analysis - Finding chemica factors - Microscopic anlaysis - Weathering testDOI : 10.1007/s11998-018-00171-5 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-018-00171-5.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32850
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 16, N° 4 (07/2019) . - p. 923-931[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 21127 - Périodique Bibliothèque principale Documentaires Disponible Short cycle times and high productivity for smart components / Christoph Bontenackels in KUNSTSTOFFE INTERNATIONAL, Vol. 111, N° 7 (2021)
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Titre : Short cycle times and high productivity for smart components : Direct coating with polyurethane coatings creates opportunities in design and functionality Type de document : texte imprimé Auteurs : Christoph Bontenackels, Auteur ; Ulrich Fehrenbacher, Auteur ; Ingo Kleba, Auteur ; Markus Mechtel, Auteur ; Olaf Zöllner, Auteur Année de publication : 2021 Article en page(s) : p. 50-53 Langues : Anglais (eng) Catégories : Adhésion
Matières plastiques dans les automobiles
Polycarbonates
Polymères -- Surfaces
Polyuréthanes
Revêtement autoréparant
Temps de cycle (production)Index. décimale : 668.4 Plastiques, vinyles Résumé : Classic coating techniques such as spray painting are reaching their limits in the production of functionally highly integrated and elegantly decorated plastic parts. In contrast, the process chain of the direct coating process has now been optimized. Self-healing, fast-curing PU casting coatings and polycarbonate compounds that adhere firmly to each other even after aging are now available for this manufacturing process. Note de contenu : - Great freedom of design for surfaces
- Specially adapted materials for the DC process
- Self-healing surfaces
- High transparency allows for the integration of light and sensors
- Ensuring the adhesive strength between PU and PC
- Tools for filling simulation
- Automotive industry appreciates the DC process
- Fig. 1 : White light interferograms of a scratch mark: after 48 hours, the scratch is no longer visible due to the self-healing effect
- Fig. 2 : Transparency in combination: comparative transmission measurements show that Makrolon and Puroclear ideally complement each other with their respective high transparency
- Fig. 3 : Results obtained in the POSI adhesion test for the combination of a standard PC and PU coating (1) and for the combination of a Makrolon Class A product type with a puroclear standard coating (2) and with a puroclear coating system optimized for PC (3) (hydrolytic storage for 72 h at 90 °C and 95 % humidity)
- Fig. 4 : The demonstrator for the control panel of a center console with inductive button functions was produced in the DC process using back injection molding of a printed Makrofol PC film, and the surface was finished with a puroclear-based deep gloss
- Fig. 5 : Simulation of DC mold filling using the example of a sample board (red = PU coating, blue = air): if surface structures are integrated into the PU coating, air pockets can form in the coating as a result of the coating being advanced in thicker areas. If, on the other hand, the surface structures are in the PC substrate, no air pockets are formed in the PU coating due to the uniform wall thickness and flow front
- Fig. 6 : Simulation of warpage using the example of a sample panel: if the surface structures are in the PU coating, increased warpage can occur due to the greater shrinkage potential in the thicker PU coating areas. However, warpage is largely avoidable if the surface structures are incorporated into the PC substrate and thus the PU wall thickness is homogeneous and lowEn ligne : https://drive.google.com/file/d/1lagCAoxRfEOSdVVCskygBSlIwgyHFyTo/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36288
in KUNSTSTOFFE INTERNATIONAL > Vol. 111, N° 7 (2021) . - p. 50-53[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 22902 - Périodique Bibliothèque principale Documentaires Disponible Significantly increased transfer efficiency / Atman Fozdar in EUROPEAN COATINGS JOURNAL (ECJ), N° 11 (11/2018)
[article]
Titre : Significantly increased transfer efficiency : Enhanced technology for electrostatic spray on nonconductive substrates and complex geometries Type de document : texte imprimé Auteurs : Atman Fozdar, Auteur ; Ronald Lewarchik, Auteur ; Vijay M. Mannari Année de publication : 2018 Article en page(s) : p. 42-48 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Composites à fibres végétales
Essais d'adhésion
Essais dynamiques
Matières plastiques -- Revêtement
Polycarbonates
Promoteurs d'adhésion
Pulvérisation électrostatique
Revêtements -- Additifs
Revêtements -- Séchage sous rayonnement ultraviolet
Revêtements poudre
Terpolymère acrylonitrile butadiène styrène
Traction (mécanique)Index. décimale : 667.9 Revêtements et enduits Résumé : Rapid drying conductive adhesion promoters provide improved adhesion of powder and liquid coatings to nonconductive substrates such as ABS and polycarbonate and improve transfer efficiency by dissipating static charge. Note de contenu : - Surface resistivity is key
- Adhering coatings on plastics
- Type of substrate matters greatly
- Method
- Where are we now ?
- Where to next ?
- Fig. 1 : Classification of conductive materials
- Fig. 2 : Uncoated polycarbonate/ABS composite ; polycarbonate/ABS coated with UV curable powder coating
- Fig. 3 : Uncoated wood-plastic composite (WPC) ; wood-plastic composite coated with UV curable powder coating
- fig. 4 : Cohesive failure of powder coating on wood-plastic composite after Positest pull-off adhesion test
- Fig. 5 : Log of surface resistivity (Ohm/Square) Vs % loading of conductivity agent on total formulation solids
- Fig. 6 : Log of surface resistivity (Ohm/Square vs. % loading of conductive nanoparticle on total formulation solids
- Fig. 7 : Uncoated curved porcelain tile ; curved porcelain tile coated with low temperature cure powder coating with texture finish
- Fig. 8 : Graphical representation of positest pull-off adhesion test, ASTM D4541 - cohesive failure within powder coating, no interfacial adhesive failure
- Table 1 : Surface resistivity of coated substrate using different types of conductivity agent at various loadings
- Table 2 : Heat deflection temperature of different plastics and type of powder coating that can be used
- Table 3 : ASTM D4541 positest AT-A pull-off adhesion testEn ligne : https://drive.google.com/file/d/1IjiDAzMtSiLLM4kxuCdCDFNHd5H6t0CO/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31221
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 11 (11/2018) . - p. 42-48[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 20333 - Périodique Bibliothèque principale Documentaires Disponible Stress cracking from medical fluids / Michael Schaumann in KUNSTSTOFFE INTERNATIONAL, Vol. 101, N° 7 (07/2011)
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Titre : Stress cracking from medical fluids Type de document : texte imprimé Auteurs : Michael Schaumann, Auteur ; Kurt Engelsing, Auteur ; Peter Heidemeyer, Auteur ; Ingo Jumpertz, Auteur ; Marc Hoffstetter, Auteur ; Erich Wintermantel, Auteur Année de publication : 2011 Article en page(s) : p. 54-57 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Contrôle non destructif
Gaz médicaux
Matières plastiques -- Détérioration
Matières plastiques -- Fissuration
Polycarbonates
Polymères -- Détérioration
Polymères en médecineIndex. décimale : 668.4 Plastiques, vinyles Résumé : Materials Testing - Environmental stress cracking is one of the most frequent causes of failure of plastic parts under load. Plastics commonly used in medical technology were tested using various methods as to their resistance to stress cracking in contact with medical fluids. Note de contenu : - Cracking as an aging phenomenon
- Standardized test methods
- Influence of surface treatment
- Influence of blood plasma
- Non-destructive test methodsPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=14988
in KUNSTSTOFFE INTERNATIONAL > Vol. 101, N° 7 (07/2011) . - p. 54-57[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 013214 - Périodique Bibliothèque principale Documentaires Disponible A study of pigment solubility in model compounds that represent a polycarbonate - Poly(butylene terephthalate) blend / K. E. Fagelman in SURFACE COATINGS INTERNATIONAL. PART B : COATINGS TRANSACTIONS, Vol. 89, B2 (06/2006)
[article]
Titre : A study of pigment solubility in model compounds that represent a polycarbonate - Poly(butylene terephthalate) blend Type de document : texte imprimé Auteurs : K. E. Fagelman, Auteur ; James Thomas Guthrie, Auteur Année de publication : 2006 Article en page(s) : p. 109-116 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Alliages polymères
Polybutylène téréphtalate
Polycarbonates
Produits chimiques -- Migration
SolubilitéIndex. décimale : 667.9 Revêtements et enduits Résumé : Nous avons décrit les principes des phénomènes de la migration et de la solubilité des pigments. Une technique a été conçue pour évaluer la solubilité du pigment bleu CI 15 :4 et du pigment rouge CI 122 dans des composés modèles qui avaient été conçus dans le but de représenter les phases principales d'une mélange Xenoy(r). Le diphényl carbonate a représenté le polycarbonate. Le propyl benzoate a représenté le poly(butylène térephthalate). On a observé que les pigments ont fait preuve de la solubilité dans les composés modèles. Cela pourrait avoir un rapport avec l'utilisation de ces pigments dans les formulations des plastiques qui sont basées sur le bisphénol A polycarbonate (PC) et le polybutylène téréphthalate (PBT) Note de contenu : - EXPERIMENTAL : Materials - Pigment solublity evaluation procedure - UV measurements
- RESULTS AND DISCUSSION : Pigment solubility study - propyl benzoate as a model for PBT - Pigment solubility study - diphenyl carbonate as a model for PC
- Table 1 : The compositions of mixtures containing propyl benzoate (PB) and pigment
- Table 2 : The compositions of mixtures containing diphenyl carbonate (DC) and pigment
- Table 3 : The compositions of mixtures containing dichloromethane (DCM) and pigment
- Table 4 : Reference liquids used for spectroscopic measurements
- Table 5, 7 and 9 : Absorbance values measured for samples containing CI Pigment Red 122
- Table 6, 8 and 10: Absorbance values measured for samples containing CI Blue 15:4DOI : 10.1007/BF02699640 En ligne : https://link.springer.com/content/pdf/10.1007/BF02699640.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5381
in SURFACE COATINGS INTERNATIONAL. PART B : COATINGS TRANSACTIONS > Vol. 89, B2 (06/2006) . - p. 109-116[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 004796 - Périodique Bibliothèque principale Documentaires Disponible PermalinkSynergistic material extrusion 3D-printing using core–shell filaments containing polycarbonate-based material with different glass transition temperatures and viscosities / Fang Peng in INTERNATIONAL POLYMER PROCESSING, Vol. 37, N° 4 (2022)
PermalinkSynthesis and properties of polyurethane acrylate modified by different contents of stearyl alcohol / Lili Qin 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)
PermalinkPermalinkThe chocolate side of polycarbonate / Ann-Christin Rusko in PLASTICS INSIGHTS, Vol. 113, N° 6 (2023)
PermalinkThe effect of top surface lubrication on the friction stir welding of polycarbonate sheets / M. M. Z. Ahmed in INTERNATIONAL POLYMER PROCESSING, Vol. 36, N° 1 (2021)
PermalinkThe long view / Stephen Shuler in KUNSTSTOFFE INTERNATIONAL, Vol. 100, N° 11 (11/2010)
PermalinkThe preparation and characterization of abrasion-resistant coatings on polycarbonate / Yu-Hong Chen in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 10, N° 1 (01/2013)
PermalinkThe right solution ? / Deborah Smith in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 196, N° 4499 (04/2006)
PermalinkPermalinkThree films, one part – and a quartered mold / Sabine Kob in KUNSTSTOFFE INTERNATIONAL, Vol. 100, N° 11 (11/2010)
PermalinkPermalinkUnderstanding flame-retardant grades better / Bahman Sarabi in KUNSTSTOFFE INTERNATIONAL, Vol. 107, N° 10 (10/2017)
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