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氢氧化镁对聚苯乙烯燃烧产物的影响
引用本文:胡永华,韩旭,谭锐,李疏芬.氢氧化镁对聚苯乙烯燃烧产物的影响[J].化学物理学报,2007,20(2):185-190.
作者姓名:胡永华  韩旭  谭锐  李疏芬
作者单位:中国科学技术大学火灾科学国家重点实验室,化学物理系,合肥230026,中国科学技术大学火灾科学国家重点实验室,化学物理系,合肥230026,中国科学技术大学火灾科学国家重点实验室,化学物理系,合肥230026,中国科学技术大学火灾科学国家重点实验室,化学物理系,合肥230026
摘    要:聚苯乙烯和含阻燃剂氢氧化镁的聚苯乙烯复合物在气密性良好的燃烧室中燃烧,燃烧产物分别采用气相色谱和气相色谱/质谱进行分析.结果表明,氢氧化镁对聚苯乙烯燃烧产物有明显的影响.随着氢氧化镁含量的增加,二氧化碳的浓度逐渐降低;残渣中焦碳的含量以及大多数的挥发性和半挥发性有机产物,尤其是聚苯乙烯单体和一些多环化合物明显增加.这意味着氢氧化镁的存在改变了聚苯乙烯的燃烧反应路径,导致了聚苯乙烯的不完全燃烧,降低了可燃性.

关 键 词:聚苯乙烯,氢氧化镁,燃烧产物,气相色谱/质谱
收稿时间:6/9/2006 12:00:00 AM

Effects of Magnesium Hydroxide on Combustion Products of Polystyrene
Yong-hua Hu,Xu Han,Rui Tan and Shu-fen Li.Effects of Magnesium Hydroxide on Combustion Products of Polystyrene[J].Chinese Journal of Chemical Physics,2007,20(2):185-190.
Authors:Yong-hua Hu  Xu Han  Rui Tan and Shu-fen Li
Institution:State Key Laboratory of Fire Science, Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China,State Key Laboratory of Fire Science, Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China,State Key Laboratory of Fire Science, Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China,State Key Laboratory of Fire Science, Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China
Abstract:Pure polystyrene (PS) and PS composites containing magnesium hydroxide (Mg(OH)2) were burned in alaboratory-scale combustion chamber. The analyses of combustion products were carried out by gas chromatography and gas chromatography/mass spectrometry. The results indicate that the effects of Mg(OH)2 on combustion products of PS are obvious. With the increase of Mg(OH)2, the concentration of CO2 gradually reduces, and the majority of the volatile and semivolatile organic products, especially styrene monomer and some polycyclic compounds, take on increasing tendencies. Furthermore, the content of coke in residue also obviously increases because of the enhancement of Mg(OH)2. All the changes seem to imply that the presence of Mg(OH)2 alters reaction pathways during the combustion of PS, promotes incomplete combustion and decreases combustibility of PS.
Keywords:Polystyrene  Magnesium hydroxide  Combustion products  GC/MS
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