Article Dans Une Revue Composites Part A: Applied Science and Manufacturing Année : 2024

Packaging of ZIF-8 into diatomite sealed by ionic liquid and its application in flame retardant polyurea composites

Xue Bi
  • Fonction : Auteur
Zeqi Zhang
  • Fonction : Auteur
Kunpeng Song
  • Fonction : Auteur
Xiaoyu Zhang
  • Fonction : Auteur
Ye-Tang Pan
Hongqiang Qu
  • Fonction : Auteur
Jiyu He
  • Fonction : Auteur
Rongjie Yang

Résumé

Diatomaceous earth (DE) has abundant silicon elements and unique pore structure, and has a good application prospect in the field of flame retardants. However, the compatibility between DE and polymers still needs to be improved. In this manuscript, imidazole-based metal organic framework (ZIF-8) was ingeniously filled into the pores of the biomorphic DE as an obstacle, and ternary (Si-P-N) composites (DE@ZIF@ILs) were obtained by introducing phosphorus-containing ionic liquids (ILs) on its surface. It effectively improves the problem of poor mechanical properties of polymer composites caused by large-size DE. The results of the cone test showed that the introduction of DE@ZIF@ILs effectively reduced the fire hazard of polyurea (PUA). The peak heat release rate, total heat release, peak smoke production rate and total smoke production decreased by 49.7%, 45.3%, 53.0% and 41.4%, respectively. This study also explored the specific mechanism of flame retardant and smoke suppression of DE@ZIF@ILs.

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Dates et versions

hal-05019917 , version 1 (03-04-2025)

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Citer

Xue Bi, Zeqi Zhang, Kunpeng Song, Xiaoyu Zhang, Ye-Tang Pan, et al.. Packaging of ZIF-8 into diatomite sealed by ionic liquid and its application in flame retardant polyurea composites. Composites Part A: Applied Science and Manufacturing, 2024, 184, pp.108283. ⟨10.1016/j.compositesa.2024.108283⟩. ⟨hal-05019917⟩
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