| Titre : |
Accelerated weathering performance of wood-plastic composites reinforced with carbon and glass fibre-woven fabrics |
| Type de document : |
texte imprimé |
| Auteurs : |
Sefa Durmaz, Auteur ; Yusuf Ziya Erdil, Auteur ; Özlem Özgenç, Auteur |
| Année de publication : |
2022 |
| Article en page(s) : |
p. 71-81 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Colorimétrie
Composites à fibres
Composites à fibres végétales
Essais accélérés (technologie)
Essais dynamiques
Fibres de carbone
Fibres de verre
Flexion (mécanique)
Polyéthylène greffé anhydride maléique
Polyéthylène haute densité
Réaction de couplage
Résistance aux conditions climatiques
|
| Index. décimale : |
668.4 Plastiques, vinyles |
| Résumé : |
Wood-plastic composites (WPCs) are new generation materials widely used in outdoor conditions; however, the appearance and mechanical properties of WPCs change with exposure to weather. In this study, high-density polyethylene-based flat-pressed WPCs are reinforced with carbon and glass fibre-woven fabrics for uses where high mechanical properties are needed in outdoor conditions. For this purpose, WPCs are exposed to accelerated weathering conditions to determine the effect of weathering with and without reinforcement. The results show that, after weathering, colour changes are inevitable for WPCs. Attenuated total reflection–Fourier transform-infrared analysis reveals the changes in the matrix's chemical structure, illustrating the alterations in WPC surface characteristics. The mechanical properties of WPCs decrease as a result of photodegradation. However, the reinforced WPCs have higher mechanical properties than the control samples, despite extensive degradation. Carbon fibre (200 g/m2) achieved the greatest flexural strength and modulus of elasticity, 150% and 122% higher, respectively, than unreinforced WPCs. Scanning electron microscopy analysis shows that, despite the intensive photodegradation on the surface, the integration of the matrix and woven fabrics was still strong. The surface erosion was observed with light microscopy. The visual appearance also exhibited some changes that occurred on the surface of WPCs. |
| Note de contenu : |
- MATERIALS AND METHODS : Materials - Composite processing - Accelerated UV weathering test - Colour measurement - ATR–FTIR spectroscopy analysis - Flexural testing and
modulus of elasticity - Microscopic analysis
- RESULTS AND DISCUSSION : Colour change - ATR–FTIR spectroscopy analysis - Flexural properties and MOE - Visual appearance - Microscopic images
- Table 1 : Changes in the wood index after weathering
- Table 2 : Changes in the flexural properties of wood-plastic composites after weathering |
| DOI : |
https://doi.org/10.1111/cote.12572 |
| En ligne : |
https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12572 |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37500 |
in COLORATION TECHNOLOGY > Vol. 138, N° 1 (02/2022) . - p. 71-81
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