PROMOTION EFFECT OF MELAMINE ON FLAME RETARDANCY OF EPOXY RESINS CONTAINING CAGED BICYCLIC PHOSPHATE

Jing-ping Hu Dao Li Yan Qin Xing-yi Wang~() Laboratory for Advanced Materials; Research Institute of Industrial Catalysis; East China University of Science & Technology; Shanghai 200237; China

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PROMOTION EFFECT OF MELAMINE ON FLAME RETARDANCY OF EPOXY RESINS CONTAINING CAGED BICYCLIC PHOSPHATE

Updated：2021-06-21

- PROMOTION EFFECT OF MELAMINE ON FLAME RETARDANCY OF EPOXY RESINS CONTAINING CAGED BICYCLIC PHOSPHATE
- PROMOTION EFFECT OF MELAMINE ON FLAME RETARDANCY OF EPOXY RESINS CONTAINING CAGED BICYCLIC PHOSPHATE
- 高分子科学（英文版） 2007年第6期页码：581-588
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  This work was supported by the financial support of the Commission of Science and Technology of Shanghai Municipality（No.05nm05039 and No.05QMX1413）.()
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Jing-ping Hu Dao Li Yan Qin Xing-yi Wang~() Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, East China University of Science & Technology, 等. PROMOTION EFFECT OF MELAMINE ON FLAME RETARDANCY OF EPOXY RESINS CONTAINING CAGED BICYCLIC PHOSPHATE[J]. 高分子科学（英文版）, 2007,(6):581-588.

Jing-ping Hu Dao Li Yan Qin Xing-yi Wang~() Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, East China University of Science & Technology, et al. PROMOTION EFFECT OF MELAMINE ON FLAME RETARDANCY OF EPOXY RESINS CONTAINING CAGED BICYCLIC PHOSPHATE[J]. 2007,(6):581-588.
Jing-ping Hu Dao Li Yan Qin Xing-yi Wang~() Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, East China University of Science & Technology, 等. PROMOTION EFFECT OF MELAMINE ON FLAME RETARDANCY OF EPOXY RESINS CONTAINING CAGED BICYCLIC PHOSPHATE[J]. 高分子科学（英文版）, 2007,(6):581-588. DOI：

Jing-ping Hu Dao Li Yan Qin Xing-yi Wang~() Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, East China University of Science & Technology, et al. PROMOTION EFFECT OF MELAMINE ON FLAME RETARDANCY OF EPOXY RESINS CONTAINING CAGED BICYCLIC PHOSPHATE[J]. 2007,(6):581-588. DOI：

摘要

<正>Caged bicyclic phosphate（CBP）and its dimelamine salt（PDS）were synthesized and added to epoxy resins to obtain the flame retarded epoxy resin composites.The flammability of the composites was characterized by the limiting oxygen index（LOI）and cone calorimeter tests.The LOI values of flame retarded composites increase consistently with the increase of flame retardant amounts,and they are almost the same when the loading of CBP is the same as that of PDS, although the phosphorus content of PDS is much lower than that of CBP.The total heat release increases in the order of CBP30/ERCBP30/ER>PDS30/ER≌PDS15/ER.PDS exhibits more effective inhibition of oxidation of combustible gases.In the tests of thermogravimetric analyses（TG）and Fourier transform infrared spectroscopy（FT-IR）,it is found that the degradation of the composites is influenced greatly by the addition of flame retardants.By scanning electron microscopy（SEM）,a thick and tight char-layer is observed for PDS30/ER,resulting from the interaction of nitrogen species with phosphorus species. Therefore,the combination of CBP with melamine in the flame retarded system can improve the flame retardancy greatly.

Abstract

Caged bicyclic phosphate（CBP）and its dimelamine salt（PDS）were synthesized and added to epoxy resins to obtain the flame retarded epoxy resin composites.The flammability of the composites was characterized by the limiting oxygen index（LOI）and cone calorimeter tests.The LOI values of flame retarded composites increase consistently with the increase of flame retardant amounts,and they are almost the same when the loading of CBP is the same as that of PDS, although the phosphorus content of PDS is much lower than that of CBP.The total heat release increases in the order of CBP30/ERCBP30/ER>PDS30/ER≌PDS15/ER.PDS exhibits more effective inhibition of oxidation of combustible gases.In the tests of thermogravimetric analyses（TG）and Fourier transform infrared spectroscopy（FT-IR）,it is found that the degradation of the composites is influenced greatly by the addition of flame retardants.By scanning electron microscopy（SEM）,a thick and tight char-layer is observed for PDS30/ER,resulting from the interaction of nitrogen species with phosphorus species. Therefore,the combination of CBP with melamine in the flame retarded system can improve the flame retardancy greatly.

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