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Titre : High gloss - Paintless and painless : Predicting the surface finish of high-gloss plastic parts Type de document : texte imprimé Année de publication : 2022 Article en page(s) : p. 28-31 Langues : Anglais (eng) Catégories : Brillance (optique)
Composites à fibres de verre
Matières plastiques -- Moulage par injection
Polyamide 6
Polycarbonates
Simulation par ordinateur
Surfaces (technologie)
Terpolymère acrylonitrile butadiène styrèneIndex. décimale : 668.4 Plastiques, vinyles Résumé : Skilful application of the evaluation and analytical options afforded by process simulation, including designing the best temperature-control system and making comparisons with alternative manufacturing processes, smoothes the way to efficient product development and manufacturing. Doing this from the very start of a project enables investments to be weighed and qualified, and technical, economic or environmental concerns to be taken into account, as exemplified here by a part with a high-gloss surface. Note de contenu : - Weighing the costs and benefits of variothermal temperature control
- High-gloss surface – with limitations
- Comparison of energy consumption: variothermal versus painting
- Simulation for the purpose of cost estimation
- All or nothing: high gloss on glass fiber
- Painting needed or even possible ? Use empirical values
- - Fig. 1 : The view of the mold interior in the simulation model shows the temperature difference at the end of the filling stage: variothermal control on the top side leads to higher mold temperatures than on the conventional temperature-controlled side (below)
- Fig. 2 : The PC+ABS reference part had a high-gloss surface in both process variants, but weld lines were absent only in the variothermal variant
- Fig. 3 : Particle tracking shows the temperature of the weld lines as they form. In the variothermal variant (right), the temperature of the melt fronts on the visible surface (top side) is still so high that they do not show up as weld lines
- Fig. 4 : The simulation of the shear stresses (bottom) indicates the direction in which the downstream surface quality of the PA6-GF30 real part is likely to trend – shown here is the higher-quality surface produced by variothermal temperature control
En ligne : https://en.kunststoffe.de/a/specialistarticle/high-gloss-paintless-and-painless- [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37961
in KUNSTSTOFFE INTERNATIONAL > Vol. 112, N° 4 (2022) . - p. 28-31[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 23406 - Périodique Bibliothèque principale Documentaires Disponible High-performance lightweight construction for large series production / Mathias Mühlbacher in KUNSTSTOFFE INTERNATIONAL, Vol. 102, N° 5 (05/2012)
[article]
Titre : High-performance lightweight construction for large series production Type de document : texte imprimé Auteurs : Mathias Mühlbacher, Auteur ; Volker Altstädt, Auteur ; Andreas Spörrer, Auteur ; Peter Michel, Auteur ; Sonja Seidel, Auteur Année de publication : 2012 Article en page(s) : p. 28-32 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Composites à fibres -- Moulage par injection
Composites thermoplastiques -- Moulage par injection
Matières plastiques dans les automobiles
Modélisation tridimensionnelle
Polyamide 6
Polybutylène téréphtalate
PréformesObjet constituant la majeur partie d’une pièce à fabriquer et qui nécessite un travail supplémentaire pour devenir une pièce finie. Ce terme s’utilise notamment pour le moulage, l’usinage, la taille d’outils en silex, la fabrication de fibre optique…
Renforts textiles
Structure multiaxiale
Tissus directionnelsIndex. décimale : 668.4 Plastiques, vinyles Résumé : Ultralitec Process - Four partners have developed a novel mass-production-compatible production process for thermoplastic high-performance fiber composites. At the heart of the so-called Ultralitec process are 3-D preforms made from UD tapes, which are consolidated in situ and combined with an injection molding process for integrating functions. The process is completely automated, including layup and transfer of the delicate preform. Note de contenu : - A wide range of thermoplastic composites
- "Large-dimension lightweight construction modules with integrated injection molding"
- Through the oven in the paternoster
- Pre-development is underway for the first series parts
- Precise fiber orientation
- A globally unique systemPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=16361
in KUNSTSTOFFE INTERNATIONAL > Vol. 102, N° 5 (05/2012) . - p. 28-32[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 13911 - Périodique Bibliothèque principale Documentaires Disponible Impact-Resistant and Stiff at the Same Time / Simon Geier in KUNSTSTOFFE INTERNATIONAL, Vol. 101, N° 7 (07/2011)
[article]
Titre : Impact-Resistant and Stiff at the Same Time Type de document : texte imprimé Auteurs : Simon Geier, Auteur ; Christian Bonten, Auteur Année de publication : 2011 Article en page(s) : p. 75-77 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Charges (matériaux)
Copolymères séquencés
Nanoparticules
Polyamide 6
Polyéthers
Résistance au chocs
SilicatesIndex. décimale : 668.4 Plastiques, vinyles Résumé : Polyamide 6 - Studies on a 3-material system consisting of a polyamide 6 matrix, a flexible phase based on a polyether block copolymer, and a nanofiller provide information on how to tailor stiffness/toughness properties to suit the intended purpose. In this way, the requirements of widely diverse applications can be precisely fulfilled. Note de contenu : - LEARNING FROM 2-MATERIAL SYSTEMS : Desired property rango for a multiphase PA6 composite material
- INCREASE IN TOUGHNESS : Atomic force micrograph of flexible phae dispersion within the PA6 matrix in the nm range
- STIFNESS INCREASED : Transmission electron micrograph showing the well coupled flexible phase in the PA6 blend - Change in the mechanical property value of PA6 as a function of flexible phase content
- IMPROVED TOUGHNES/STIFFNESS BALANCE : Transmission electron micrograph showing the homogeneous dispersion of the flexible phase and layer silicate platelets in the multiphase PA6 composite - Change in the mechanical property values of PA6 as a function of layer silicate contentPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=14992
in KUNSTSTOFFE INTERNATIONAL > Vol. 101, N° 7 (07/2011) . - p. 75-77[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 013214 - Périodique Bibliothèque principale Documentaires Disponible Impregnating natural fibers in an extruder / Christian Hopmann in KUNSTSTOFFE INTERNATIONAL, Vol. 102, N° 8 (08/2012)
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Titre : Impregnating natural fibers in an extruder Type de document : texte imprimé Auteurs : Christian Hopmann, Auteur ; Eike Klünker, Auteur Année de publication : 2012 Article en page(s) : p. 40-43 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Composites à fibres végétales
Extrusion réactive
Fibres cellulosiques
Matériaux -- Imprégnation
Polyamide 6Index. décimale : 668.4 Plastiques, vinyles Résumé : Reactive Extrusion - High melt viscosity is one of the factors that make it hard to incorporate fibers into a plastic melt. Reactive extrusion with PA6 makes it possible to impregnate natural fibers with the low-viscosity monomer. Note de contenu : - Reactive extrusion of PA6 with cellulose fibers
- INcreased stiffness with no strength loss
- Twisted, irregular fiber structure
- Improved damping compared to glass fibersPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=17074
in KUNSTSTOFFE INTERNATIONAL > Vol. 102, N° 8 (08/2012) . - p. 40-43[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 14079 - Périodique Bibliothèque principale Documentaires Disponible Improved interfacial properties of PA6/DE blends by DE-g-MAH prepared through ultrasound assisted extrusion / W. Bao in INTERNATIONAL POLYMER PROCESSING, Vol. XXIX, N° 3 (07/2014)
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Titre : Improved interfacial properties of PA6/DE blends by DE-g-MAH prepared through ultrasound assisted extrusion Type de document : texte imprimé Auteurs : W. Bao, Auteur ; Hong Wu, Auteur ; T. Xie, Auteur ; S. Guo, Auteur Année de publication : 2014 Article en page(s) : p. 371-378 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Adhésion
Alliages polymères
Alliages polymères -- propriétés mécaniques
Chimie des surfaces
Copolymères greffés
Elastomères
Essais dynamiques
Maléique, Acide
Matières plastiques -- Extrusion
Peroxydes
Polyamide 6
Taille des particules
UltrasonsIndex. décimale : 668.4 Plastiques, vinyles Résumé : In this paper, ultrasound was applied in extrusion reaction processing to graft an Elastomer (DE) with maleic anhydride (MAH), in order to improve the non-polarity of DE. Two types of DE-g-MAH were prepared by different methods and had similar grafting degree about 0.2 % and then they were added into the polyamide-6/elastomer (PA6/DE) blends, respectively. The effect of DE-g-MAH on the interfacial properties of PA6/DE blends was studied. The experimental results showed that, compared to the DE-g-MAH initiated by peroxide, DE-g-MAH initiated by ultrasound had better effect on refining the particle size of the dispersion phase and keeping the stability of the phase in the blends, which could be confirmed through SEM and Molau tests. When 5 % DE-g-MAH initiated by peroxide was added, the particle size of dispersion phase was 3.90 ?m, however, when 5 % DE-g-MAH initiated by ultrasound was added, the particle size of dispersion phase was 2.82 ?m. The results of TGA and mechanical tests showed the improved interfacial interaction and enhanced interfacial adhesion of the blend by adding DE-g-MAH, respectively. Note de contenu : - EXPERIMENTAL : Materials - Samples preparation - Measurement
- RESULTS AND DISCUSSION : Fourier Transform Infrared Spectroscopy (FT-IR) of grafted products - Grafting degree - Molau test - Morphology of cryogenically-fractured surfaces of the blends - Thermogravimetric analysis - mechanical propertiesDOI : 10.3139/217.2816 En ligne : https://drive.google.com/file/d/1XFltYg6VlCzVwuQmpwHkV8CGHXorsV2f/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=21735
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Code-barres Cote Support Localisation Section Disponibilité 16404 - Périodique Bibliothèque principale Documentaires Disponible Improved resource efficiency in KUNSTSTOFFE INTERNATIONAL, Vol. 100, N° 12 (12/2010)
PermalinkIn situ assembly of LDPE/PA6 multilayer structure by stirring / P. Pongmuksuwan in INTERNATIONAL POLYMER PROCESSING, Vol. XXXV, N° 1 (03/2020)
PermalinkInfluence of PA6 as a charring agent on flame retardancy, thermal and mechanical properties of LGFR PP composites / M. Wang in INTERNATIONAL POLYMER PROCESSING, Vol. XXXIII, N° 4 (08/2018)
PermalinkInliner for automotive high-pressure natural gaz tank / Maik Schulte in KUNSTSTOFFE INTERNATIONAL, Vol. 103, N° 3 (03/2013)
PermalinkInnovation collaborative pour un produit hybride unique / Mathieu Schwander in PLASTIQUES & CAOUTCHOUCS MAGAZINE, N° 936 (01-02/2017)
PermalinkInnovative high-performance hybrid yarns made from recycled carbon fibers for lightweight structures / Anwar Abdkader in CHEMICAL FIBERS INTERNATIONAL, Vol. 67, N° 3 (09/2017)
PermalinkInvestigation of surface roughness and MRR for engineering polymers with the abrasive water jet turning process / Fuat Kartal in INTERNATIONAL POLYMER PROCESSING, Vol. XXXI, N° 3 (07/2016)
PermalinkDu laminé au composant (1/2) / Tobias Pfefferkorn in PLASTIQUES & CAOUTCHOUCS MAGAZINE, N° 915 (10/2014)
PermalinkDu laminé au composant (2/2) / Tobias Pfefferkorn in PLASTIQUES & CAOUTCHOUCS MAGAZINE, N° 916 (11/2014)
PermalinkLayer-by-layer from granulate to part / Christian Hopmann in KUNSTSTOFFE INTERNATIONAL, Vol. 108, N° 11 (11/2018)
PermalinkLight in weight, high in performance / Matthias Wuchter in KUNSTSTOFFE INTERNATIONAL, Vol. 101, N° 9 (09/2011)
PermalinkLightweight design on the move / Daniel Häffelin in KUNSTSTOFFE INTERNATIONAL, Vol. 107, N° 3 (03/2017)
PermalinkLong-chained and high-viscous / Benjamino R. Formisano in KUNSTSTOFFE INTERNATIONAL, Vol. 107, N° 12 (12/2017)
PermalinkMaking metal superflous in KUNSTSTOFFE INTERNATIONAL, Vol. 103, N° 5 (05/2013)
PermalinkMaking the switch with e-mobility / Anika van Aaken in KUNSTSTOFFE INTERNATIONAL, Vol. 108, N° 10 (10/2018)
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