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首页> 外文期刊>Journal of Analytical & Applied Pyrolysis >Synergistic effect between melamine cyanurate and a novel flame retardant curing agent containing a caged bicyclic phosphate on flame retardancy and thermal behavior of epoxy resins
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Synergistic effect between melamine cyanurate and a novel flame retardant curing agent containing a caged bicyclic phosphate on flame retardancy and thermal behavior of epoxy resins

机译：三聚氰胺三聚氰胺与新型笼型双环磷酸盐阻燃固化剂对环氧树脂的阻燃性和热性能的协同作用

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摘要

A novel curing and flame retardant agent (PEPA-TMA), has been synthesized via 2,6,7- trioxa-1-phosphabicyclo-[2.2.2]-octane-4-methanol (PEPA) to react with trimellitic anhydride (TMA). PEPA-TMA and melamine cyanurate (MCA) were combined into epoxy resin (EP) to obtain halogen-free flame retardant epoxy resin composites. The flame retardancy was characterized by limited oxygen index (LOI) and UL-94 testing. The results showed that the incorporation of PEPA-TMA/MCA into EP can improve the flame retardancy relatively. The thermal degradation process was characterized using thermogravimetric analysis/infrared spectrometry (TGA-FTIR). The formed volatilized products on thermal degradation of flame retarded epoxy resin (EP) systems indicated that the volatilized products are mainly phosphine (PH3), carbon dioxide (CO2), water (H2O) and aromatic compounds. The char yield was 33.7% at 800 degrees C. The morphologies of formed residue chars were observed by scanning electron microscopy (SEM) demonstrating that the most effective amount of phosphorus is 2.5 wt%. The flame retarded mechanism was studied by TGA-FTIR and Energy-dispersive X-ray spectroscopy (EDS) coupled with the analysis of the char residues. (C) 2017 Elsevier B.V. All rights reserved.
机译：一种新的固化和阻燃剂（PEPA-TMA），是通过2,6,7-三恶唑-1-磷杂双环-[2.2.2]-辛烷-4-甲醇（PEPA）与偏苯三酸酐（TMA）反应而合成的）。将PEPA-TMA和三聚氰胺氰尿酸酯（MCA）组合到环氧树脂（EP）中，以获得无卤阻燃环氧树脂复合材料。通过有限的氧指数（LOI）和UL-94测试来表征阻燃性。结果表明，将PEPA-TMA / MCA掺入EP可以相对提高阻燃性。使用热重分析/红外光谱（TGA-FTIR）对热降解过程进行了表征。阻燃环氧树脂（EP）体系热降解后形成的挥发产物表明，挥发产物主要为膦（PH3），二氧化碳（CO2），水（H2O）和芳香族化合物。在800℃下焦炭产率为33.7％。通过扫描电子显微镜（SEM）观察到形成的残留焦炭的形态，表明最有效的磷含量为2.5wt％。通过TGA-FTIR和能量色散X射线光谱法（EDS）结合焦炭残留物分析研究了阻燃机理。 （C）2017 Elsevier B.V.保留所有权利。

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  • 来源
    《Journal of Analytical & Applied Pyrolysis》 |2017年第3期|239-246|共8页
  • 作者

    Ma Tongtong; Guo Chuigen;

  • 作者单位

    Northeast Forestry Univ, Coll Sci, Harbin 150040, Peoples R China;

    Northeast Forestry Univ, Coll Sci, Harbin 150040, Peoples R China|South China Agr Univ, Coll Mat & Energy, Guangzhou 510642, Guangdong, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Epoxy resin; Flame retardant; Thermal degradation; TGA-FTIR;

    机译：环氧树脂;阻燃剂;热降解;TGA-FTIR;

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