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Mechanical Properties, Wettability and Thermal Degradation of HDPE/Birch Fiber Composite

Wood–plastic composites have emerged and represent an alternative to conventional composites reinforced with synthetic carbon fiber or glass fiber–polymer. A wide variety of wood fibers are used in WPCs including birch fiber. Birch is a common hardwood tree that grows in cool areas such as the provi...

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Autores principales: Koffi, Agbelenko, Mijiyawa, Fayçal, Koffi, Demagna, Erchiqui, Fouad, Toubal, Lotfi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8124377/
https://www.ncbi.nlm.nih.gov/pubmed/33946417
http://dx.doi.org/10.3390/polym13091459
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author Koffi, Agbelenko
Mijiyawa, Fayçal
Koffi, Demagna
Erchiqui, Fouad
Toubal, Lotfi
author_facet Koffi, Agbelenko
Mijiyawa, Fayçal
Koffi, Demagna
Erchiqui, Fouad
Toubal, Lotfi
author_sort Koffi, Agbelenko
collection PubMed
description Wood–plastic composites have emerged and represent an alternative to conventional composites reinforced with synthetic carbon fiber or glass fiber–polymer. A wide variety of wood fibers are used in WPCs including birch fiber. Birch is a common hardwood tree that grows in cool areas such as the province of Quebec, Canada. The effect of the filler proportion on the mechanical properties, wettability, and thermal degradation of high-density polyethylene/birch fiber composite was studied. High-density polyethylene, birch fiber and maleic anhydride polyethylene as coupling agent were mixed and pressed to obtain test specimens. Tensile and flexural tests, scanning electron microscopy, dynamic mechanical analysis, differential scanning calorimetry, thermogravimetry analysis and surface energy measurement were carried out. The tensile elastic modulus increased by 210% as the fiber content reached 50% by weight while the flexural modulus increased by 236%. The water droplet contact angle always exceeded 90°, meaning that the material remained hydrophobic. The thermal decomposition mass loss increased proportional with the percentage of fiber, which degraded at a lower temperature than the HDPE did. Both the storage modulus and the loss modulus increased with the proportion of fiber. Based on differential scanning calorimetry, neither the fiber proportion nor the coupling agent proportion affected the material melting temperature.
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spelling pubmed-81243772021-05-17 Mechanical Properties, Wettability and Thermal Degradation of HDPE/Birch Fiber Composite Koffi, Agbelenko Mijiyawa, Fayçal Koffi, Demagna Erchiqui, Fouad Toubal, Lotfi Polymers (Basel) Article Wood–plastic composites have emerged and represent an alternative to conventional composites reinforced with synthetic carbon fiber or glass fiber–polymer. A wide variety of wood fibers are used in WPCs including birch fiber. Birch is a common hardwood tree that grows in cool areas such as the province of Quebec, Canada. The effect of the filler proportion on the mechanical properties, wettability, and thermal degradation of high-density polyethylene/birch fiber composite was studied. High-density polyethylene, birch fiber and maleic anhydride polyethylene as coupling agent were mixed and pressed to obtain test specimens. Tensile and flexural tests, scanning electron microscopy, dynamic mechanical analysis, differential scanning calorimetry, thermogravimetry analysis and surface energy measurement were carried out. The tensile elastic modulus increased by 210% as the fiber content reached 50% by weight while the flexural modulus increased by 236%. The water droplet contact angle always exceeded 90°, meaning that the material remained hydrophobic. The thermal decomposition mass loss increased proportional with the percentage of fiber, which degraded at a lower temperature than the HDPE did. Both the storage modulus and the loss modulus increased with the proportion of fiber. Based on differential scanning calorimetry, neither the fiber proportion nor the coupling agent proportion affected the material melting temperature. MDPI 2021-04-30 /pmc/articles/PMC8124377/ /pubmed/33946417 http://dx.doi.org/10.3390/polym13091459 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Koffi, Agbelenko
Mijiyawa, Fayçal
Koffi, Demagna
Erchiqui, Fouad
Toubal, Lotfi
Mechanical Properties, Wettability and Thermal Degradation of HDPE/Birch Fiber Composite
title Mechanical Properties, Wettability and Thermal Degradation of HDPE/Birch Fiber Composite
title_full Mechanical Properties, Wettability and Thermal Degradation of HDPE/Birch Fiber Composite
title_fullStr Mechanical Properties, Wettability and Thermal Degradation of HDPE/Birch Fiber Composite
title_full_unstemmed Mechanical Properties, Wettability and Thermal Degradation of HDPE/Birch Fiber Composite
title_short Mechanical Properties, Wettability and Thermal Degradation of HDPE/Birch Fiber Composite
title_sort mechanical properties, wettability and thermal degradation of hdpe/birch fiber composite
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8124377/
https://www.ncbi.nlm.nih.gov/pubmed/33946417
http://dx.doi.org/10.3390/polym13091459
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