| PS/PPO合金的燃烧行为研究 |
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| 引用本文： | 刘继纯,陈权,井蒙蒙,陆昶,张玉清. PS/PPO合金的燃烧行为研究[J]. 塑料科技, 2011, 39(4) |
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| 作者姓名： | 刘继纯 陈权 井蒙蒙 陆昶 张玉清 |
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| 作者单位： | 河南科技大学化工与制药学院高分子科学与纳米技术重点实验室,河南,洛阳,471003 |
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| 基金项目： | 河南科技大学人才科研基金 |
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| 摘 要： | 利用HAAKE流变仪将聚苯乙(烯PS)与聚苯醚(PPO)进行熔融复合,得到一系列不同组成的聚合物合金。采用热重分析、高温热分解、氧指数、锥形量热分析等方法研究了合金的热稳定性和燃烧性能。结果表明:与纯PS相比,PS/PPO合金的热分解温度提高,成炭量增加,热稳定性显著增强;随着PPO用量的增加,合金的氧指数增大,热释放速率和质量损失速率逐渐减小;在PS树脂基体中加入20phr PPO可使合金的氧指数提高3.4%,热释放速率降低16.4%。研究发现,加入PPO后,聚合物合金在高温下的成炭能力显著增强,生成的炭层覆盖在聚合物材料表面形成保护层,对热量传递、氧气和燃料分子的迁移产生屏蔽和阻隔作用,从而提高了聚合物合金的阻燃性能。
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| 关 键 词： | 聚苯乙烯 聚苯醚 合金 燃烧行为 |
Study on Combustion Behavior of PS/PPO Alloy |
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| Liu Jichun,Chen Quan,Jing Mengmeng,Lu Chang,Zhang Yuqing. Study on Combustion Behavior of PS/PPO Alloy[J]. Plastics Science and Technology, 2011, 39(4) |
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| Authors: | Liu Jichun Chen Quan Jing Mengmeng Lu Chang Zhang Yuqing |
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| Affiliation: | Liu Jichun,Chen Quan,Jing Mengmeng,Lu Chang,Zhang Yuqing School of Chemical Engineering and Pharmaceutics,Key Laboratory of Polymer Science and Nanotechnology,Henan University of Science and Technology,Luoyang 471003,China |
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| Abstract: | A series of PS/PPO alloys with different compositions were obtained by melt-compounding PS and PPO in a HAAKE rheometer. The thermal stability and combustion performance of the alloy were studied by means of thermogravimetry, high-temperature pyrolysis, oxygen index and cone calorimetry. It is indicated that both degradation temperature and char residue amount of the PS/PPO alloy increase and the thermal stability of the alloy enhances noticeably in comparison with virgin PS. With increase of PPO loading, t... |
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| Keywords: | Polystyrene Polyphenylene oxide Alloy Combustion behavior |
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