Accueil
Catégories
> Composites à fibres de verre -- Moulage par injection
Composites à fibres de verre -- Moulage par injectionVoir aussi |
Ajouter le résultat dans votre panier Affiner la recherche
Etendre la recherche sur niveau(x) vers le bas
The impact of accelerated aging on the mechanical and thermal properties and VOC emission of polypropylene composites reinforced with glass fibers / Annette Rüppel in INTERNATIONAL POLYMER PROCESSING, Vol. 38, N° 1 (2023)
[article]
Titre : The impact of accelerated aging on the mechanical and thermal properties and VOC emission of polypropylene composites reinforced with glass fibers Type de document : texte imprimé Auteurs : Annette Rüppel, Auteur ; Susanne Wolff, Auteur ; Hans-Peter Heim, Auteur Année de publication : 2023 Article en page(s) : p. 111-125 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Caractérisation
Composés organiques volatils
Composites à fibres -- Détérioration
Composites à fibres de verre -- Extrusion
Composites à fibres de verre -- Moulage par injection
Composites à fibres de verre -- Propriétés mécaniques
Emission de polluants
Essais accélérés (technologie)
Essais dynamiques
PolypropylèneIndex. décimale : 668.4 Plastiques, vinyles Résumé : This paper presents the impact of accelerated aging on selected mechanical and thermal properties and VOC emission of polypropylene composites filled with glass fiber with different fiber contents. Due to their positive properties (good thermal and mechanical properties, low weight), glass fiber reinforced thermoplastics are becoming increasingly important. Fiber reinforced thermoplastics are mainly produced by injection molding and extrusion, whereby the extrusion compounding process is primarily used to prepare fiber-filled granulates while the injection molding process is used to manufacture products. In this study, short glass fiber reinforced thermoplastics (polypropylene) are produced on a twin screw extruder. Then, tensile test specimens are produced by injection molding. The glass fiber content is between 20 and 40 wt%. In order to investigate the long-term stability, the test specimens are artificially aged in accordance with ASTM 1980. The thermal, mechanical, and emission properties were evaluated by means of differential scanning calorimetry (DSC), tensile tests, and TDS-GC-MS analysis prior to and after accelerated aging. The objective of this study was to investigate the effects of thermal aging on crystallinity and mechanical properties and on VOC emission of glass fiber reinforced isotactic polypropylene. Note de contenu : - MATERIALS AND PROCESSING : Materials - Compounding - Injection molding
- IMPLEMENTATION OF EXPERIMENTS : Aging tests according to ASTM 1980 - Tensile tests according to DIN EN ISO 527 - Visualization of the fracture behavior - Differential scanning calorimetry - GC-MS analysis
- RESULTS : Tensile tests and visualized fracture behavior - Differential scanning calorimetry - GC-MS analysis
- DISCUSSION : Tensile tests - Differential scanning calorimetry - GC-MS analysis
- Table 1 : Variants of the test specimens
- Table 2 : Temperatures used in the compounding process in a twin screw extruder
- Table 3 : Temperatures used in the injection molding process.
- Table 4 : Storage times and temperatures for all test specimens
- Table 5 : Melting temperatures and melting enthalpies from DSC measurements
- Table 6 : Melting temperatures and melting enthalpies from DSC measurements
- Table 7 : Melting temperatures and melting enthalpies from DSC measurements
- Table 8 : Qualification of the emission by means of TD-GC-MSDOI : https://doi.org/10.1515/ipp-2022-4268 En ligne : https://drive.google.com/file/d/1rdcaLSgM8xlyZRusSPyOQiC3mIhzFS2y/view?usp=share [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39199
in INTERNATIONAL POLYMER PROCESSING > Vol. 38, N° 1 (2023) . - p. 111-125[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 24052 - Périodique Bibliothèque principale Documentaires Disponible Twin-O-Sheet / Dietmar Drummer in JEC COMPOSITES MAGAZINE, N° 89 (05/2014)
[article]
Titre : Twin-O-Sheet : producing functionalized hollow bodies in a shorter process chain Type de document : texte imprimé Auteurs : Dietmar Drummer , Auteur ; Christian Gröschel, Auteur Année de publication : 2014 Article en page(s) : p. 51-53 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Composites à fibres de verre
Composites à fibres de verre -- Moulage par injection
Composites à fibres de verre -- Propriétés mécaniques
Composites thermoplastiques
Corps creux
Fibres continues
Polyamide 6
Soudage
Stratifiés
Torsion (mécanique)Index. décimale : 620.19 Autres matériaux Résumé : Current process chains for the production of functionalized hollow bodies from organo-sheets consist of multiple steps. The Twin-O-Sheet process integrates three steps (shaping, welding and injection moulding) into a single mould. Thus, the heating energy from the shaping step can be further used for joining and overmoulding. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=21613
in JEC COMPOSITES MAGAZINE > N° 89 (05/2014) . - p. 51-53[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 16337 - Périodique Bibliothèque principale Documentaires Disponible