中国塑料

中国塑料 ›› 2010, Vol. 24 ›› Issue (02): 92-95 .DOI: 10.19491/j.issn.1001-9278.2010.02.020

• 助剂 • 上一篇    下一篇

新型P-Br阻燃剂对环氧树脂阻燃和力学性能的影响

卢林刚 周霞 赵敏   

  1. 河北廊坊中国人民武装警察部队学院
  • 收稿日期:2009-09-09 修回日期:1900-01-01 出版日期:2010-02-26 发布日期:2010-02-26

Influence of Contents of Novel P-Br Flame Retardant on Flame Retardancy and Mechanical Properties of Epoxy Resin

  

  • Received:2009-09-09 Revised:1900-01-01 Online:2010-02-26 Published:2010-02-26

摘要： 研究了一种新型P-Br阻燃剂-1，3，5－三（5，5－二溴甲基－1，3－二氧杂己内磷酰氧基）苯(FR)的含量对环氧树脂(EP)的阻燃性能和力学性能的影响。结果表明，当阻燃剂FR的含量为15 %（质量分数，下同）时，与纯EP相比，阻燃EP的极限氧指数从25.0 %提高到29.3 %，垂直燃烧通过UL 94 V-0级，火势增长指数从3.63 kW/(m2·s1)下降到0.77 kW/(m2·s1)，放热指数从1.89 MJ/m2下降到1.34 MJ/m2，600 ℃残炭率从18.54 %升至29.02 %，呈现良好的阻燃效果，但力学性能有所下降，拉伸强度从62.04 MPa下降到39.81 MPa，冲击强度从13.46 kJ/m2 降到10.13 kJ/m2。

关键词: 阻燃剂, 环氧树脂, 阻燃性能, 力学性能, 1, 3, 5－三（5, 5－二溴甲基－1, 3－二氧杂己内磷酰氧基）苯

Abstract: The influences of contents of flame retardant 1, 3, 5-tri(5, 5-dibromomethyl-1, 3, -dioxaphosphorinanyl-2-oxy)benzene (FR) on the flame retardancy and mechanical properties of epoxy resin (EP) were studied. Compared with neat EP, when the content of FR was 15 wt %, the limited oxygen index of EP/ FR system increased from 25.0 % to 29.3 %, the system could pass UL 94 V-0 rating, the fire growth index decreased from 3.63 kW/(m2·s1) to 0.77 kW/(m2·s1), the total heat release amount index reduced from 1.89 MJ/m2 to 1.34 MJ/m2, while the residue ratio at 600 ℃ rose to 29.02 % from 18.54 %. However, the mechanical property of the composite became inferior, it's the tensile strength decreased from 62.04 MPa to 39.81 MPa and the impact strength decreased from 13.46 kJ/m2 to 10.13 kJ/m2.

Key words: flame retardant, epoxy resin, flame retardancy, mechanical property, 1, 3, 5-tri(5, 5-dibromomethyl-1, 3, -dioxaphosphorinanyl-2-oxy)benzene

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