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首页> 外文期刊>Journal of Applied Polymer Science >Flammability and thermal properties of epoxy/glass/MWNT Composites
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Flammability and thermal properties of epoxy/glass/MWNT Composites

机译：环氧/玻璃/ MWNT复合材料的易燃性和热性能

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摘要

The aim f this work is to study the effect of nanotubes on flammability properties of epoxy/glass composites. Multiwalled carbon nanotubes (MWNT) and its functionalized derivative (amino functionalized nanotubes) were incorporated into epoxy resin. To disperse MWNTs in the epoxy resin, different ways were employed. Microscopic observations showed that, the best dispersion state was gained by using ultrasonication method and high shear flow simultaneously. Thermal resistance of cured epoxy resins containing various amounts of nanotubes (0.25-0.7 wt %), was investigated by thermo gravimetric analysis (TGA). Introducing MWNTs and amino-MWNTs to samples increased the initial thermal decomposition temperature for about 32 and 37°C, respectively. LOI measurements of composite samples showed an increase up to 32. Cone calorimetry test was carried out on epoxy/glass and epoxy/glass containing 0.5% MWNT. The results showed that, introducing 0.5% MWNTs decreases maximum average rate of heat emission for about 26%.
机译：这项工作的目的是研究纳米管对环氧/玻璃复合材料可燃性的影响。将多壁碳纳米管（MWNT）及其功能化衍生物（氨基官能化纳米管）掺入环氧树脂中。为了将MWNT分散在环氧树脂中，采用了不同的方法。显微观察表明，超声法和高剪切流同时获得最佳分散状态。通过热重分析（TGA）研究了包含各种量的纳米管（0.25-0.7重量％）的固化环氧树脂的热阻。向样品中引入MWNT和氨基MWNT分别使初始热分解温度分别提高了约32和37°C。复合材料样品的LOI测量显示增加了32。锥量热法测试是对环氧/玻璃和含0.5％MWNT的环氧/玻璃进行的。结果表明，引入0.5％的MWNTs可使最大平均发热量降低约26％。

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