| 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
Polypropylène
|
| Index. 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-MS |
| DOI : |
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 : |
Pdf |
| 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
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The impact of accelerated aging on the mechanical and thermal properties and VOC emission of polypropylene composites reinforced with glass fibers in INTERNATIONAL POLYMER PROCESSING, Vol. 38, N° 1 (2023)
