Mechanically Sustainable Starch-Based Flame-Retardant Coatings on Polyurethane Foams
The use of halogen-based materials has been regulated since toxic substances are released during combustion. In this study, polyurethane foam was coated with cationic starch (CS) and montmorillonite (MMT) nano-clay using a spray-assisted layer-by-layer (LbL) assembly to develop an eco-friendly, high...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-04-01
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| Series: | Polymers |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4360/13/8/1286 |
| _version_ | 1797537665057292288 |
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| author | Kyung-Who Choi Jun-Woo Kim Tae-Soon Kwon Seok-Won Kang Jung-Il Song Yong-Tae Park |
| author_facet | Kyung-Who Choi Jun-Woo Kim Tae-Soon Kwon Seok-Won Kang Jung-Il Song Yong-Tae Park |
| author_sort | Kyung-Who Choi |
| collection | DOAJ |
| description | The use of halogen-based materials has been regulated since toxic substances are released during combustion. In this study, polyurethane foam was coated with cationic starch (CS) and montmorillonite (MMT) nano-clay using a spray-assisted layer-by-layer (LbL) assembly to develop an eco-friendly, high-performance flame-retardant coating agent. The thickness of the CS/MMT coating layer was confirmed to have increased uniformly as the layers were stacked. Likewise, a cone calorimetry test confirmed that the heat release rate and total heat release of the coated foam decreased by about 1/2, and a flame test showed improved fire retardancy based on the analysis of combustion speed, flame size, and residues of the LbL-coated foam. More importantly, an additional cone calorimeter test was performed after conducting more than 1000 compressions to assess the durability of the flame-retardant coating layer when applied in real life, confirming the durability of the LbL coating by the lasting flame retardancy. |
| first_indexed | 2024-03-10T12:19:01Z |
| format | Article |
| id | doaj.art-9418ad200d0c4a1ab2a7d81e1ba9b782 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-10T12:19:01Z |
| publishDate | 2021-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-9418ad200d0c4a1ab2a7d81e1ba9b7822023-11-21T15:39:02ZengMDPI AGPolymers2073-43602021-04-01138128610.3390/polym13081286Mechanically Sustainable Starch-Based Flame-Retardant Coatings on Polyurethane FoamsKyung-Who Choi0Jun-Woo Kim1Tae-Soon Kwon2Seok-Won Kang3Jung-Il Song4Yong-Tae Park5School of Aerospace and Mechanical Engineering, Korea Aerospace University, 76 Hanggongdaehak-ro, Deogyang-gu, Goyang-si 10540, Gyeonggi-do, KoreaDepartment of Mechanical Engineering, Myongji University, 116 Myongji-ro, Cheoin-gu, Yongin 17058, Gyeonggi-do, KoreaKorea Railroad Research Institute, 176 Cheoldo bangmulgwan-ro, Uiwang-si 16105, Gyeonggi-do, KoreaDepartment of Automotive Engineering, Yeungnam University, 280 Daehak-ro, Gyeongsan 38541, Gyeongsangbuk-do, KoreaDepartment of Mechanical Engineering, Changwon National University, 20 Changwondaehak-ro, Uichang-gu, Changwon 51140, Gyeongsangnam-do, KoreaDepartment of Mechanical Engineering, Myongji University, 116 Myongji-ro, Cheoin-gu, Yongin 17058, Gyeonggi-do, KoreaThe use of halogen-based materials has been regulated since toxic substances are released during combustion. In this study, polyurethane foam was coated with cationic starch (CS) and montmorillonite (MMT) nano-clay using a spray-assisted layer-by-layer (LbL) assembly to develop an eco-friendly, high-performance flame-retardant coating agent. The thickness of the CS/MMT coating layer was confirmed to have increased uniformly as the layers were stacked. Likewise, a cone calorimetry test confirmed that the heat release rate and total heat release of the coated foam decreased by about 1/2, and a flame test showed improved fire retardancy based on the analysis of combustion speed, flame size, and residues of the LbL-coated foam. More importantly, an additional cone calorimeter test was performed after conducting more than 1000 compressions to assess the durability of the flame-retardant coating layer when applied in real life, confirming the durability of the LbL coating by the lasting flame retardancy.https://www.mdpi.com/2073-4360/13/8/1286layer-by-layer assemblyflame retardantcationic starchmontmorillonite clayeco-friendlydurable |
| spellingShingle | Kyung-Who Choi Jun-Woo Kim Tae-Soon Kwon Seok-Won Kang Jung-Il Song Yong-Tae Park Mechanically Sustainable Starch-Based Flame-Retardant Coatings on Polyurethane Foams Polymers layer-by-layer assembly flame retardant cationic starch montmorillonite clay eco-friendly durable |
| title | Mechanically Sustainable Starch-Based Flame-Retardant Coatings on Polyurethane Foams |
| title_full | Mechanically Sustainable Starch-Based Flame-Retardant Coatings on Polyurethane Foams |
| title_fullStr | Mechanically Sustainable Starch-Based Flame-Retardant Coatings on Polyurethane Foams |
| title_full_unstemmed | Mechanically Sustainable Starch-Based Flame-Retardant Coatings on Polyurethane Foams |
| title_short | Mechanically Sustainable Starch-Based Flame-Retardant Coatings on Polyurethane Foams |
| title_sort | mechanically sustainable starch based flame retardant coatings on polyurethane foams |
| topic | layer-by-layer assembly flame retardant cationic starch montmorillonite clay eco-friendly durable |
| url | https://www.mdpi.com/2073-4360/13/8/1286 |
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