含磷腈环氧树脂阻燃和热解动力学
Thermal Decomposition Kinetics and Flame Retardance of Phosphazene-Containing Epoxy Resin
查看参考文献10篇
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文摘
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采用热重(TG)和微商热重(DTG)实验分析技术,分别对自制的六-对氨基苯氧基环三磷腈(PNH)和4,4'-二氨基二苯甲烷(DMA)为E51型环氧树脂的固化剂,研究了在氮气和空气氛围中2种环氧树脂的阻燃特性和热解动力学;运用Achar法和Coats-Redfern法建立了二者的热裂解动力学模型,得到了2种体系的动力学表观活化能和指前因子。研究表明,与不含磷环氧树脂相比,磷腈固化的环氧树脂更易发生热裂解,而在高温阶段却明显具有阻燃特性;磷腈固化的环氧树脂裂解后期残炭量较高,其活化能与其阻燃机理有关:即表观活化能越大阻燃性越强。 |
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其他语种文摘
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The thermal decomposition kinetics and flame retardant property of epoxy resin cured with phosphazene and non-phosphorus curing agent in N_2 and air atmosphere respectively were studied by TG-DTG. Six thermal decomposition kinetics model were affirmed and their activation energy, pre-exponential factor were also calculated through the Achar and Coats-Redfern methods. The results show that even though decomposed easily in the initial heating phase, the phosphazene-containing epoxy resin has an obvious flame retardant effect during high-temperaturephase and a higher char yield in later thermal cracking compared with the non-phosphorus containing epoxy resin. In some extent, the activation energy has a great relationship with the flame retardant mechanism. |
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来源
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高分子材料科学与工程
,2016,32(3):54-58 【核心库】
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DOI
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10.16865/j.cnki.1000-7555.2016.03.010
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关键词
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磷腈化合物
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环氧树脂
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阻燃
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热分解动力学
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活化能
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机理
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地址
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1.
中国科学院广州能源研究所, 广东, 广州, 510640
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河南工业大学化学化工学院, 河南, 郑州, 450001
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1000-7555 |
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学科
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化学工业 |
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基金
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国家自然科学基金资助项目
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国家重大研究计划培育项目
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文献收藏号
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CSCD:5677512
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参考文献 共
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