| 废旧聚氨酯硬泡热解特性 |
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| 引用本文： | 李旭华,段 宁,林学钰,刘景洋,郭玉文. 废旧聚氨酯硬泡热解特性[J]. 环境科学研究, 2009, 22(10): 1176-1180 |
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| 作者姓名： | 李旭华 段 宁 林学钰 刘景洋 郭玉文 |
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| 作者单位： | 中国环境科学研究院,北京,100012;北京师范大学水科学研究院,北京,100875;北京师范大学水科学研究院,北京,100875;中国环境科学研究院,北京,100012 |
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| 基金项目： | 国家"十一五"科技支撑计划项目，环保公益性行业科研专项 |
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| 摘 要： | 采用热重分析仪对废旧聚氨酯硬泡在氮气中的热失重行为进行了研究，并对升温速率、热解终温对热解的影响进行了分析. 结果表明:在氮气气氛条件下，废旧聚氨酯硬泡热解主要发生在200～492 ℃；随着升温速率的提高，废旧聚氨酯硬泡热失重时挥发分初析温度向高温方向偏移，失重速率峰值(DTGmax)显著增大.利用热重-红外(TG-FTIR)联用方法对氮气气氛中10 ℃/min升温速率下的样品热解气体产物进行了检测. 结果表明:废旧聚氨酯硬泡热解产物有H2O，CO2，CO，CFC-11，以及含氯化合物、烯烃类、烷烃类和带有苯环等官能团的化合物，且主要气体产物有相似的析出规律.
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| 关 键 词： | 废旧聚氨酯硬泡 热重-红外联用 热解特性 挥发分 |
| 收稿时间： | 2009-01-16 |
| 修稿时间： | 2009-02-16 |
Pyrolysis Characteristics of Waste Rigid Polyurethance Foam |
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| LI Xu-hu,DUAN Ning,LIN Xue-yu,LIU Jing-yang and GUO Yu-wen. Pyrolysis Characteristics of Waste Rigid Polyurethance Foam[J]. Research of Environmental Sciences, 2009, 22(10): 1176-1180 |
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| Authors: | LI Xu-hu DUAN Ning LIN Xue-yu LIU Jing-yang GUO Yu-wen |
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| Affiliation: | 1.Chinese Research Academy of Environmental Sciences, Beijing 100012, China;College of Water Sciences, Beijing Normal University, Beijing 100875, China2.College of Water Sciences, Beijing Normal University, Beijing 100875, China3.Chinese Research Academy of Environmental Sciences, Beijing 100012, China |
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| Abstract: | The pyrolysis properties of waste rigid polyurethance (RPU) foam were studied bythermo-gravimetric analysis in a nitrogen atmosphere, and the influence of heating rate and final temperature on pyrolysis was also discussed. The results indicate that the pyrolysis of waste RPU foam mainly occurs at about 200～492 ℃. With increasing heating rate, the initial separatingtemperature of the volatile organic matter (Ts) increases toward the higher range, and the peak value of the weight loss velocity (DTGmax) shows a remarkable increase. At the same time, qualitative analysis of the evolved gases during heat-up (10 ℃/min) in nitrogen was analyzedby using Thermo-Gravimetric and Fourier Transform Infrared (TG-FTIR). Experimental results show that pyrolysis products of waste RPU foam have H2O, CO2, CO, CFC-11, organic-chlorine compounds, alkenes, alkanes, alcohols and aromatic compounds, and the precipitation characteristics of the gas products are similar. |
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| Keywords: | rigid polyurethane foam (RPU foam) TG-FTIR pyrolysis property volatile matte |
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