Heat Transfer Modeling of Oriented Sorghum Fibers Reinforced High-Density Polyethylene Film Composites during Hot-Pressing

A one-dimensional heat transfer model was developed to simulate the heat transfer of oriented natural fiber reinforced thermoplastic composites during hot-pressing and provide guidance for determining appropriate hot-pressing parameters. The apparent heat capacity of thermoplastics due to the heat o...

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Autores principales:	Chusheng Qi, Jinyue Wang, Vikram Yadama
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	wood–plastic composites heat transfer modeling sweet sorghum high-density polyethylene hot-pressing Organic chemistry QD241-441
Acceso en línea:	https://doaj.org/article/13dd7ecb9e294548b078ac6ba91acd9a
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spelling	oai:doaj.org-article:13dd7ecb9e294548b078ac6ba91acd9a2021-11-11T18:42:02ZHeat Transfer Modeling of Oriented Sorghum Fibers Reinforced High-Density Polyethylene Film Composites during Hot-Pressing10.3390/polym132136312073-4360https://doaj.org/article/13dd7ecb9e294548b078ac6ba91acd9a2021-10-01T00:00:00Zhttps://www.mdpi.com/2073-4360/13/21/3631https://doaj.org/toc/2073-4360A one-dimensional heat transfer model was developed to simulate the heat transfer of oriented natural fiber reinforced thermoplastic composites during hot-pressing and provide guidance for determining appropriate hot-pressing parameters. The apparent heat capacity of thermoplastics due to the heat of fusion was included in the model, and the model was experimentally verified by monitoring the internal temperature during the hot-pressing process of oriented sorghum fiber reinforced high-density polyethylene (HDPE) film composites (OFPCs). The results showed that the apparent heat capacity of HDPE accurately described its heat fusion of melting and simplified the governing energy equations. The data predicted by the model were consistent with the experimental data. The thermal conduction efficiency increased with the mat density and HDPE content during hot-pressing, and a higher mat density resulted in a higher mat core temperature. The addition of HDPE delayed heat transfer, and the mat had a lower core temperature at a higher HDPE content after reaching the melting temperature of HDPE. Both the experimental and simulated data suggested that a higher temperature and/or a longer duration during the hot-pressing process should be used to fabricate OFPC as the HDPE content increases.Chusheng QiJinyue WangVikram YadamaMDPI AGarticlewood–plastic compositesheat transfer modelingsweet sorghumhigh-density polyethylenehot-pressingOrganic chemistryQD241-441ENPolymers, Vol 13, Iss 3631, p 3631 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	wood–plastic composites heat transfer modeling sweet sorghum high-density polyethylene hot-pressing Organic chemistry QD241-441
spellingShingle	wood–plastic composites heat transfer modeling sweet sorghum high-density polyethylene hot-pressing Organic chemistry QD241-441 Chusheng Qi Jinyue Wang Vikram Yadama Heat Transfer Modeling of Oriented Sorghum Fibers Reinforced High-Density Polyethylene Film Composites during Hot-Pressing
description	A one-dimensional heat transfer model was developed to simulate the heat transfer of oriented natural fiber reinforced thermoplastic composites during hot-pressing and provide guidance for determining appropriate hot-pressing parameters. The apparent heat capacity of thermoplastics due to the heat of fusion was included in the model, and the model was experimentally verified by monitoring the internal temperature during the hot-pressing process of oriented sorghum fiber reinforced high-density polyethylene (HDPE) film composites (OFPCs). The results showed that the apparent heat capacity of HDPE accurately described its heat fusion of melting and simplified the governing energy equations. The data predicted by the model were consistent with the experimental data. The thermal conduction efficiency increased with the mat density and HDPE content during hot-pressing, and a higher mat density resulted in a higher mat core temperature. The addition of HDPE delayed heat transfer, and the mat had a lower core temperature at a higher HDPE content after reaching the melting temperature of HDPE. Both the experimental and simulated data suggested that a higher temperature and/or a longer duration during the hot-pressing process should be used to fabricate OFPC as the HDPE content increases.
format	article
author	Chusheng Qi Jinyue Wang Vikram Yadama
author_facet	Chusheng Qi Jinyue Wang Vikram Yadama
author_sort	Chusheng Qi
title	Heat Transfer Modeling of Oriented Sorghum Fibers Reinforced High-Density Polyethylene Film Composites during Hot-Pressing
title_short	Heat Transfer Modeling of Oriented Sorghum Fibers Reinforced High-Density Polyethylene Film Composites during Hot-Pressing
title_full	Heat Transfer Modeling of Oriented Sorghum Fibers Reinforced High-Density Polyethylene Film Composites during Hot-Pressing
title_fullStr	Heat Transfer Modeling of Oriented Sorghum Fibers Reinforced High-Density Polyethylene Film Composites during Hot-Pressing
title_full_unstemmed	Heat Transfer Modeling of Oriented Sorghum Fibers Reinforced High-Density Polyethylene Film Composites during Hot-Pressing
title_sort	heat transfer modeling of oriented sorghum fibers reinforced high-density polyethylene film composites during hot-pressing
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/13dd7ecb9e294548b078ac6ba91acd9a
work_keys_str_mv	AT chushengqi heattransfermodelingoforientedsorghumfibersreinforcedhighdensitypolyethylenefilmcompositesduringhotpressing AT jinyuewang heattransfermodelingoforientedsorghumfibersreinforcedhighdensitypolyethylenefilmcompositesduringhotpressing AT vikramyadama heattransfermodelingoforientedsorghumfibersreinforcedhighdensitypolyethylenefilmcompositesduringhotpressing
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Heat Transfer Modeling of Oriented Sorghum Fibers Reinforced High-Density Polyethylene Film Composites during Hot-Pressing

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