提高掺三氢氧化铝环氧树脂的阻燃抑烟性能

IF 1.7 4区材料科学 Q3 MATERIALS SCIENCE, COMPOSITES

Advanced Composites Letters Pub Date : 2019-12-13 DOI:10.1177/2633366X19894597

Guoqiang Chai, Guoqing Zhu, Shuai Gao, Jinju Zhou, Yunji Gao, Yang Wang

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引用次数: 10

摘要

以氢氧化铝（ATH）为阻燃剂，掺入环氧树脂（EP）中，对其抑烟性能和阻燃性能进行了研究。结果表明，ATH掺杂的EP具有良好的阻燃和防烟性能。掺杂15wt%ATH的EP的峰值放热率比EP降低了28.49%；总烟气排放量下降了17.65%；一氧化碳的生成率降低了30.24%。由于ATH的分解，其活化能远小于EP，但在第二阶段比EP高30–40 kJ mol−1。通过对残余碳的分析，证实了ATH在高温下可以吸引大量的热量产生氧化铝（Al2O3）膜和H2O。H2O减少了可燃气体的产生以抑制燃烧，粘附在残余碳上的Al2O3膜可以隔离空气以减少燃烧和烟雾释放。

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On improving flame retardant and smoke suppression efficiency of epoxy resin doped with aluminum tri-hydroxide

Aluminum tri-hydroxide (ATH) was selected as a retardant doped into epoxy resin (EP), and smoke suppression and flame retardancy of ATH/EP were investigated. The results showed that ATH-doped EP has superior performance resisting the flame development and smoke release to EP. Peak heat release rate of EP doped with 15-wt% ATH decreased by 28.49% in comparison with EP; total smoke release of it decreased by 17.65%; production rate of carbon monoxide decreased by 30.24%. The activation energy of it was much smaller than EP due to the decomposition of ATH, but it was 30–40 kJ mol−1 higher than EP in the second stage. Based on analysis of the residual carbon, it was confirmed that ATH can attract lots of heat to produce aluminum oxide (Al2O3) films and H2O at high temperature. H2O decreases the production of flammable gas to inhibit combustion, and Al2O3 films adhered to the residue carbon can insulate air to reduce combustion and smoke release.

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来源期刊

Advanced Composites Letters 工程技术-材料科学：复合

自引率

0.00%

发文量

审稿时长

4.2 months

期刊介绍： Advanced Composites Letters is a peer reviewed, open access journal publishing research which focuses on the field of science and engineering of advanced composite materials or structures.