Preparation and Characterization of Microencapsulated Ammonium Polyphosphate with Polyurethane Shell and Its Flame Retardance in Polypropylene
Polypropylene (PP) shows no charring ability in burning due to the lack of hydroxyl functional groups; thus, the flame retardant system needs an additional amount of carbonizing agent. An ammonium polyphosphate (APP)-based all-in-one intumescent flame-retardant system was prepared by the in situ pol...
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-03-01
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| Online Access: | https://www.mdpi.com/2571-6255/7/3/97 |
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| author | Thuy Tien Nguyen Thanh Ziya Yusifov Bence Tóth Katalin Bocz Péter Márton Zoltán Hórvölgyi György Marosi Beáta Szolnoki |
| author_facet | Thuy Tien Nguyen Thanh Ziya Yusifov Bence Tóth Katalin Bocz Péter Márton Zoltán Hórvölgyi György Marosi Beáta Szolnoki |
| author_sort | Thuy Tien Nguyen Thanh |
| collection | DOAJ |
| description | Polypropylene (PP) shows no charring ability in burning due to the lack of hydroxyl functional groups; thus, the flame retardant system needs an additional amount of carbonizing agent. An ammonium polyphosphate (APP)-based all-in-one intumescent flame-retardant system was prepared by the in situ polymerization of polymeric methylene diphenyl diisocyanate (pMDI) with a glycerol-based and a glycerol–sorbitol-based polyol of high OH value. The microencapsulated APP with a polyurethane shell (MCAPP) of different polyols was characterized. The MCAPP with speculated improved flame retardant performance was selected for further evaluation in the PP matrix at different loadings by means of standard flammability tests. |
| first_indexed | 2024-04-24T18:18:13Z |
| format | Article |
| id | doaj.art-91c5bcaa62f54b7a98eef2bc09560cea |
| institution | Directory Open Access Journal |
| issn | 2571-6255 |
| language | English |
| last_indexed | 2024-04-24T18:18:13Z |
| publishDate | 2024-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Fire |
| spelling | doaj.art-91c5bcaa62f54b7a98eef2bc09560cea2024-03-27T13:38:14ZengMDPI AGFire2571-62552024-03-01739710.3390/fire7030097Preparation and Characterization of Microencapsulated Ammonium Polyphosphate with Polyurethane Shell and Its Flame Retardance in PolypropyleneThuy Tien Nguyen Thanh0Ziya Yusifov1Bence Tóth2Katalin Bocz3Péter Márton4Zoltán Hórvölgyi5György Marosi6Beáta Szolnoki7Department of Organic Chemistry and Technology, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, Műegyetem rkp. 3., H-1111 Budapest, HungaryDepartment of Organic Chemistry and Technology, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, Műegyetem rkp. 3., H-1111 Budapest, HungaryDepartment of Organic Chemistry and Technology, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, Műegyetem rkp. 3., H-1111 Budapest, HungaryDepartment of Organic Chemistry and Technology, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, Műegyetem rkp. 3., H-1111 Budapest, HungaryDepartment of Physical Chemistry and Materials Science, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, Műegyetem rkp. 3., H-1111 Budapest, HungaryDepartment of Physical Chemistry and Materials Science, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, Műegyetem rkp. 3., H-1111 Budapest, HungaryDepartment of Organic Chemistry and Technology, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, Műegyetem rkp. 3., H-1111 Budapest, HungaryDepartment of Organic Chemistry and Technology, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, Műegyetem rkp. 3., H-1111 Budapest, HungaryPolypropylene (PP) shows no charring ability in burning due to the lack of hydroxyl functional groups; thus, the flame retardant system needs an additional amount of carbonizing agent. An ammonium polyphosphate (APP)-based all-in-one intumescent flame-retardant system was prepared by the in situ polymerization of polymeric methylene diphenyl diisocyanate (pMDI) with a glycerol-based and a glycerol–sorbitol-based polyol of high OH value. The microencapsulated APP with a polyurethane shell (MCAPP) of different polyols was characterized. The MCAPP with speculated improved flame retardant performance was selected for further evaluation in the PP matrix at different loadings by means of standard flammability tests.https://www.mdpi.com/2571-6255/7/3/97flame retardancypolypropylenemicroencapsulationammonium polyphosphatepolyurethane shell |
| spellingShingle | Thuy Tien Nguyen Thanh Ziya Yusifov Bence Tóth Katalin Bocz Péter Márton Zoltán Hórvölgyi György Marosi Beáta Szolnoki Preparation and Characterization of Microencapsulated Ammonium Polyphosphate with Polyurethane Shell and Its Flame Retardance in Polypropylene Fire flame retardancy polypropylene microencapsulation ammonium polyphosphate polyurethane shell |
| title | Preparation and Characterization of Microencapsulated Ammonium Polyphosphate with Polyurethane Shell and Its Flame Retardance in Polypropylene |
| title_full | Preparation and Characterization of Microencapsulated Ammonium Polyphosphate with Polyurethane Shell and Its Flame Retardance in Polypropylene |
| title_fullStr | Preparation and Characterization of Microencapsulated Ammonium Polyphosphate with Polyurethane Shell and Its Flame Retardance in Polypropylene |
| title_full_unstemmed | Preparation and Characterization of Microencapsulated Ammonium Polyphosphate with Polyurethane Shell and Its Flame Retardance in Polypropylene |
| title_short | Preparation and Characterization of Microencapsulated Ammonium Polyphosphate with Polyurethane Shell and Its Flame Retardance in Polypropylene |
| title_sort | preparation and characterization of microencapsulated ammonium polyphosphate with polyurethane shell and its flame retardance in polypropylene |
| topic | flame retardancy polypropylene microencapsulation ammonium polyphosphate polyurethane shell |
| url | https://www.mdpi.com/2571-6255/7/3/97 |
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