Inorganic Chemicals Industry ›› 2022, Vol. 54 ›› Issue (11): 8-17.doi: 10.19964/j.issn.1006-4990.2022-0047

• Reviews and Special Topics • Previous Articles     Next Articles

Research progress on new inorganic phosphorus-based flame retardants

LIU Chang1,2(),DUAN Zunbin3,WANG Jiannan2,MA Huijuan1,2,WANG Jiahong1,3,YU Xuefeng1,3()   

  1. 1. Hubei Three Gorges Laboratory, Yichang 443007, China
    2. Hubei Xingfa Chemicals Group Co. Ltd.
    3. Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences
  • Received:2022-01-24 Online:2022-11-10 Published:2022-11-23
  • Contact: YU Xuefeng E-mail:466578168@qq.com;xf.yu@siat.ac.cn

Abstract:

Black phosphorus-based flame retardants,the representative of new nano inorganic phosphorus-based flame retardants,can achieve simultaneous improvement of the flame retardancy and mechanical properties of polymers at a low addition amount,showing good application prospects.The research progress on new inorganic phosphorus-based flame retardants was reviewed.The functional strategy,preparation process,flame retardant mechanism and application progress of black phosphorus-based flame retardants were mainly introduced.Finally,the development trend was prospected.The preparation of black phosphorus by nanoscale processes such as ultrasonic exfoliation,ball-milling exfoliation,electrochemical intercalation exfoliation,and targeted covalent or non-covalent modification strategies using flame-retardant organic/inorganic substances were reviewed.The advantages and disadvantages of composite preparation processes including solution blending,melt blending,in-situ polymerization and coating were analyzed.The rules between the structure and properties of black phosphorus-based flame retardants were summarized.Future research priorities in both scientific innovation and engineering breakthroughs were proposed.

Key words: inorganic phosphorus-based flame retardant, black phosphorus, modification strategy, flame-retardant mechanism

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