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| Flame Retardant Modification of Polyurea Elastomers |
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| DOI：10.7643/issn.1672-9242.2022.10.008 |
| KeyWord:polyurea elastomer burning flame retardant additive type reactive type modification |
| Author | Institution |
| WANG Wen-yan |
Xi'an Modern Chemistry Research Institute, Xi'an 71006, China |
| ZHOU Li-sheng |
Xi'an Modern Chemistry Research Institute, Xi'an 71006, China |
| LIU Chen |
Xi'an Modern Chemistry Research Institute, Xi'an 71006, China |
| SHI Ai-juan |
Xi'an Modern Chemistry Research Institute, Xi'an 71006, China |
| YANG Shi-shan |
Xi'an Modern Chemistry Research Institute, Xi'an 71006, China |
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| Abstract: |
| This paper aims to introduce the properties and combustion mechanism of polyurea and summarize the current research status of flame retardant modification of polyurea from two aspects, including the addition of halogen, phosphorus, nitrogen and nano flame retardants, and the introduction of flame retardant elements and structures through chemical reactions. We systematically analyzed the flame retardant mechanism and its advantages and disadvantages respectively and put forword that the additive flame retardant has the problem of poor compatibility with the substrate, while the reactive flame retardant modification is technically difficult with no interface problems. The combination of the advantages of different flame retardants can achieve a synergistic enhancement effect. The research results provide a technical reference for improving the flame retardant performance of polyurea. |
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