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Preparation and properties of DOPO-BPS/OSEP/EP-CE flame retardant composite materials
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Yong LIU1, 2, 3, Yifan JIANG1, Xinxi GENG1, Tao ZHANG4
China Safety Science Journal | 2025, 35(2) : 111 - 117
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China Safety Science Journal | 2025, 35(2): 111-117
• Safety engineering technology •
Preparation and properties of DOPO-BPS/OSEP/EP-CE flame retardant composite materials
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Yong LIU1, 2, 3, Yifan JIANG1, Xinxi GENG1, Tao ZHANG4
Affiliations
  • 1 College of Resources，Environment and Safety Engineering，Hunan University of Science and Technology，Xiangtan Hunan 411201，China
  • 2 Hunan Engineering Research Center for Fire and Explosion Prevention Materials and Equipment in Underground Spaces，Xiangtan Hunan 411201，China
  • 3 Key Laboratory of Fire and Explosion Prevention and Emergency Technology in Hunan Province，Xiangtan Hunan 411201，China
  • 4 College of Safety Science and Engineering，Nanjing Technology University，Nanjing Jiangsu 211816，China
Published: 2025-02-28 doi: 10.16265/j.cnki.issn1003-3033.2025.02.0976
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To enhance the flame retardancy and smoke suppression performance of EP-CE composites，a novel flame retardant was synthesized using DOPO and BPS as raw materials. The flame-retardant DOPO-BPS/OSEP/EP-CE composites were fabricated by the solution casting method，where DOPO-BPS and OSEP were jointly introduced into EP-CE matrix. Based on Fourier transform infrared spectroscopy (FTIR) analysis，nuclear magnetic resonance (NMR) analysis，thermogravimetric analysis (TGA)，limiting oxygen index (LOI) test，UL-94 vertical burning test，and cone calorimeter analysis，the effects of different ratios of DOPO-BPS and OSEP on the flame retardancy and smoke suppression properties of EP-CE composite materials were studied. The results show that the phosphaphenanthrene ring structure of DOPO-BPS could form a stable carbon layer and block the transfer of heat and oxygen. The synergistic effect with OSEP significantly improves the flame retardant effect and smoke suppression performance. When the flame retardant DOPO-BPS and OSEP are added to EP-CE at a mass fraction of 9∶1，the flame retardant performance and smoke suppression performance are the best，the flame retardant performance reaches V-0 level，and the LOI increases to 31.4%. Compared with EP-CE，the peak heat release rate，total heat release and total smoke production decrease by 29.7%，32.2% and 32.7%，respectively.

epoxy resin (EP)  /  cyanate ester resin (CE)  /  9，10-dihydro-9-oxa-10-phosphaphenanthrene 10-oxide (DOPO)  /  bisphenol sulfone (BPS)  /  organic sepiolite (OSEP)  /  flame retardancy  /  composite materials
Yong LIU, Yifan JIANG, Xinxi GENG, Tao ZHANG. Preparation and properties of DOPO-BPS/OSEP/EP-CE flame retardant composite materials[J]. China Safety Science Journal, 2025 , 35 (2) : 111 -117 . DOI: 10.16265/j.cnki.issn1003-3033.2025.02.0976
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Year 2025 volume 35 Issue 2
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Article Info
doi: 10.16265/j.cnki.issn1003-3033.2025.02.0976
  • Receive Date：2024-09-02
  • Online Date：2025-07-05
  • Published：2025-02-28
Article Data
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History
  • Received：2024-09-02
  • Revised：2024-11-11
Funding
Affiliations
    1 College of Resources，Environment and Safety Engineering，Hunan University of Science and Technology，Xiangtan Hunan 411201，China
    2 Hunan Engineering Research Center for Fire and Explosion Prevention Materials and Equipment in Underground Spaces，Xiangtan Hunan 411201，China
    3 Key Laboratory of Fire and Explosion Prevention and Emergency Technology in Hunan Province，Xiangtan Hunan 411201，China
    4 College of Safety Science and Engineering，Nanjing Technology University，Nanjing Jiangsu 211816，China
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表12种不同金属材料的力学参数
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小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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