Experimental and Numerical Investigations on Curing a Polyester-Based Powder Coating by Catalytic Infrared Radiation
Catalytic combustion can effectively and cleanly convert the chemical energy of fossil fuels into infrared radiation energy. However, there is little research on the use of this technology to cure powder coatings. Therefore, catalytic infrared heating equipment based on a Pt/Al<sub>2</sub&g...
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MDPI AG
2023-02-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/13/4/2187 |
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| author | Yindong Yuan Song Pan Tongzhao Wang Liang Xia Yiqiao Liu Xinru Wang Lei Li Tian Wang |
| author_facet | Yindong Yuan Song Pan Tongzhao Wang Liang Xia Yiqiao Liu Xinru Wang Lei Li Tian Wang |
| author_sort | Yindong Yuan |
| collection | DOAJ |
| description | Catalytic combustion can effectively and cleanly convert the chemical energy of fossil fuels into infrared radiation energy. However, there is little research on the use of this technology to cure powder coatings. Therefore, catalytic infrared heating equipment based on a Pt/Al<sub>2</sub>O<sub>3</sub> noble metal catalyst was designed, constructed, and tested in this study. The optimal curing parameters for the catalytic infrared curing process for powder coatings were determined via experiments at 220 °C for 3 min and 230 °C for 2 min. As the curing temperature increased and the curing time increased, the mechanical properties of the coating were found to improve. However, the gloss of the coating was reduced and the color darkened. A one-dimensional heat transfer model was developed to investigate the heat transfer process for powder coatings. This study introduced an internal heat source for the first time, and the heat transfer process for polyester-based powder coatings with different substrate thicknesses was numerically simulated. The numerical simulations demonstrated that the efficiency of the heat transfer between the catalytic infrared gas supply and the coating surface was 0.4. When the substrate thickness was 1 mm, the coating was most rapidly cured at 230 °C. When the substrate thickness was ≥2 mm, the most rapid curing occurred at 220 °C. |
| first_indexed | 2024-03-11T09:12:52Z |
| format | Article |
| id | doaj.art-46890ba3e2684a2081f5fc1393ad6ee9 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-11T09:12:52Z |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-46890ba3e2684a2081f5fc1393ad6ee92023-11-16T18:52:09ZengMDPI AGApplied Sciences2076-34172023-02-01134218710.3390/app13042187Experimental and Numerical Investigations on Curing a Polyester-Based Powder Coating by Catalytic Infrared RadiationYindong Yuan0Song Pan1Tongzhao Wang2Liang Xia3Yiqiao Liu4Xinru Wang5Lei Li6Tian Wang7Beijing Key Laboratory of Green Built Environment and Efficient Technology, Beijing University of Technology, Beijing 100124, ChinaBeijing Key Laboratory of Green Built Environment and Efficient Technology, Beijing University of Technology, Beijing 100124, ChinaDepartment of Architecture and Built Environment, Research Centre for Fluids and Thermal Engineering, University of Nottingham Ningbo China, Ningbo 315100, ChinaDepartment of Architecture and Built Environment, Research Centre for Fluids and Thermal Engineering, University of Nottingham Ningbo China, Ningbo 315100, ChinaDepartment of Mechanical Engineering, Faculty of Engineering, Universiti Malaya, Kuala Lumpur 50603, MalaysiaCollege of Mechanical Engineering, Tianjin University of Commerce, Tianjin 300134, ChinaSuzhou Catalytic Green Energy Co., Ltd., Suzhou 215011, ChinaDepartment of Architecture and Built Environment, Research Centre for Fluids and Thermal Engineering, University of Nottingham Ningbo China, Ningbo 315100, ChinaCatalytic combustion can effectively and cleanly convert the chemical energy of fossil fuels into infrared radiation energy. However, there is little research on the use of this technology to cure powder coatings. Therefore, catalytic infrared heating equipment based on a Pt/Al<sub>2</sub>O<sub>3</sub> noble metal catalyst was designed, constructed, and tested in this study. The optimal curing parameters for the catalytic infrared curing process for powder coatings were determined via experiments at 220 °C for 3 min and 230 °C for 2 min. As the curing temperature increased and the curing time increased, the mechanical properties of the coating were found to improve. However, the gloss of the coating was reduced and the color darkened. A one-dimensional heat transfer model was developed to investigate the heat transfer process for powder coatings. This study introduced an internal heat source for the first time, and the heat transfer process for polyester-based powder coatings with different substrate thicknesses was numerically simulated. The numerical simulations demonstrated that the efficiency of the heat transfer between the catalytic infrared gas supply and the coating surface was 0.4. When the substrate thickness was 1 mm, the coating was most rapidly cured at 230 °C. When the substrate thickness was ≥2 mm, the most rapid curing occurred at 220 °C.https://www.mdpi.com/2076-3417/13/4/2187catalytic infraredheat efficiencyheat transfer modelpowder coating curing |
| spellingShingle | Yindong Yuan Song Pan Tongzhao Wang Liang Xia Yiqiao Liu Xinru Wang Lei Li Tian Wang Experimental and Numerical Investigations on Curing a Polyester-Based Powder Coating by Catalytic Infrared Radiation Applied Sciences catalytic infrared heat efficiency heat transfer model powder coating curing |
| title | Experimental and Numerical Investigations on Curing a Polyester-Based Powder Coating by Catalytic Infrared Radiation |
| title_full | Experimental and Numerical Investigations on Curing a Polyester-Based Powder Coating by Catalytic Infrared Radiation |
| title_fullStr | Experimental and Numerical Investigations on Curing a Polyester-Based Powder Coating by Catalytic Infrared Radiation |
| title_full_unstemmed | Experimental and Numerical Investigations on Curing a Polyester-Based Powder Coating by Catalytic Infrared Radiation |
| title_short | Experimental and Numerical Investigations on Curing a Polyester-Based Powder Coating by Catalytic Infrared Radiation |
| title_sort | experimental and numerical investigations on curing a polyester based powder coating by catalytic infrared radiation |
| topic | catalytic infrared heat efficiency heat transfer model powder coating curing |
| url | https://www.mdpi.com/2076-3417/13/4/2187 |
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