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...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-10-01
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| Series: | Polymers |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4360/13/21/3631 |
| _version_ | 1797511903599132672 |
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| author | Chusheng Qi Jinyue Wang Vikram Yadama |
| author_facet | Chusheng Qi Jinyue Wang Vikram Yadama |
| author_sort | Chusheng Qi |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-03-10T05:54:31Z |
| format | Article |
| id | doaj.art-13dd7ecb9e294548b078ac6ba91acd9a |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-10T05:54:31Z |
| publishDate | 2021-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-13dd7ecb9e294548b078ac6ba91acd9a2023-11-22T21:26:27ZengMDPI AGPolymers2073-43602021-10-011321363110.3390/polym13213631Heat Transfer Modeling of Oriented Sorghum Fibers Reinforced High-Density Polyethylene Film Composites during Hot-PressingChusheng Qi0Jinyue Wang1Vikram Yadama2MOE Key Laboratory of Wood Material Science and Utilization, Beijing Forestry University, Beijing 100083, ChinaMOE Key Laboratory of Wood Material Science and Utilization, Beijing Forestry University, Beijing 100083, ChinaDepartment of Civil & Environmental Engineering and Composite Materials and Engineering Center, Washington State University, Pullman, WA 99164, USAA 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.https://www.mdpi.com/2073-4360/13/21/3631wood–plastic compositesheat transfer modelingsweet sorghumhigh-density polyethylenehot-pressing |
| spellingShingle | Chusheng Qi Jinyue Wang Vikram Yadama Heat Transfer Modeling of Oriented Sorghum Fibers Reinforced High-Density Polyethylene Film Composites during Hot-Pressing Polymers wood–plastic composites heat transfer modeling sweet sorghum high-density polyethylene hot-pressing |
| title | 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_short | 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 |
| topic | wood–plastic composites heat transfer modeling sweet sorghum high-density polyethylene hot-pressing |
| url | https://www.mdpi.com/2073-4360/13/21/3631 |
| work_keys_str_mv | AT chushengqi heattransfermodelingoforientedsorghumfibersreinforcedhighdensitypolyethylenefilmcompositesduringhotpressing AT jinyuewang heattransfermodelingoforientedsorghumfibersreinforcedhighdensitypolyethylenefilmcompositesduringhotpressing AT vikramyadama heattransfermodelingoforientedsorghumfibersreinforcedhighdensitypolyethylenefilmcompositesduringhotpressing |