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How Do Phosphorus Compounds with Different Valence States Affect the Flame Retardancy of PET?
This work investigated the effect of different valence states of phosphorus-containing compounds on thermal decomposition and flame retardancy of polyethylene terephthalate (PET). Three polyphosphates—PBPP with +3-valence P, PBDP with +5-valence P and PBPDP with both +3/+5-valence P—were synthesized...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10146855/ https://www.ncbi.nlm.nih.gov/pubmed/37112063 http://dx.doi.org/10.3390/polym15081917 |
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author | Zhao, Siheng Xu, Bo Shan, Hao Zhang, Qinglei Wang, Xiangdong |
author_facet | Zhao, Siheng Xu, Bo Shan, Hao Zhang, Qinglei Wang, Xiangdong |
author_sort | Zhao, Siheng |
collection | PubMed |
description | This work investigated the effect of different valence states of phosphorus-containing compounds on thermal decomposition and flame retardancy of polyethylene terephthalate (PET). Three polyphosphates—PBPP with +3-valence P, PBDP with +5-valence P and PBPDP with both +3/+5-valence P—were synthesized. The combustion behaviors of flame-retardant PET were studied and the structure–property relationships between the phosphorus-based structures with different valence states and flame-retardant properties were further explored. It was found that phosphorus valence states significantly affected the flame-retardant modes of action of polyphosphate in PET. For the phosphorus structures with +3-valence, more phosphorus-containing fragments were released in the gas phase, inhibiting polymer chain decomposition reactions; by contrast, those with +5-valence phosphorus retained more P in the condensed phase, promoting the formation of more P-rich char layers. It is worth noting that the polyphosphate containing both +3/+5-valence phosphorous tended to combine the advantage of phosphorus structures with two valence states and balance the flame-retardant effect in the gas phase and condensed phase. These results contribute to guiding the design of specified phosphorus-based structures of flame-retardant compounds in polymer materials. |
format | Online Article Text |
id | pubmed-10146855 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-101468552023-04-29 How Do Phosphorus Compounds with Different Valence States Affect the Flame Retardancy of PET? Zhao, Siheng Xu, Bo Shan, Hao Zhang, Qinglei Wang, Xiangdong Polymers (Basel) Article This work investigated the effect of different valence states of phosphorus-containing compounds on thermal decomposition and flame retardancy of polyethylene terephthalate (PET). Three polyphosphates—PBPP with +3-valence P, PBDP with +5-valence P and PBPDP with both +3/+5-valence P—were synthesized. The combustion behaviors of flame-retardant PET were studied and the structure–property relationships between the phosphorus-based structures with different valence states and flame-retardant properties were further explored. It was found that phosphorus valence states significantly affected the flame-retardant modes of action of polyphosphate in PET. For the phosphorus structures with +3-valence, more phosphorus-containing fragments were released in the gas phase, inhibiting polymer chain decomposition reactions; by contrast, those with +5-valence phosphorus retained more P in the condensed phase, promoting the formation of more P-rich char layers. It is worth noting that the polyphosphate containing both +3/+5-valence phosphorous tended to combine the advantage of phosphorus structures with two valence states and balance the flame-retardant effect in the gas phase and condensed phase. These results contribute to guiding the design of specified phosphorus-based structures of flame-retardant compounds in polymer materials. MDPI 2023-04-17 /pmc/articles/PMC10146855/ /pubmed/37112063 http://dx.doi.org/10.3390/polym15081917 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Zhao, Siheng Xu, Bo Shan, Hao Zhang, Qinglei Wang, Xiangdong How Do Phosphorus Compounds with Different Valence States Affect the Flame Retardancy of PET? |
title | How Do Phosphorus Compounds with Different Valence States Affect the Flame Retardancy of PET? |
title_full | How Do Phosphorus Compounds with Different Valence States Affect the Flame Retardancy of PET? |
title_fullStr | How Do Phosphorus Compounds with Different Valence States Affect the Flame Retardancy of PET? |
title_full_unstemmed | How Do Phosphorus Compounds with Different Valence States Affect the Flame Retardancy of PET? |
title_short | How Do Phosphorus Compounds with Different Valence States Affect the Flame Retardancy of PET? |
title_sort | how do phosphorus compounds with different valence states affect the flame retardancy of pet? |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10146855/ https://www.ncbi.nlm.nih.gov/pubmed/37112063 http://dx.doi.org/10.3390/polym15081917 |
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