| 破碎聚氨酯硬泡时CFC-11的释放量和残留量 |
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| 引用本文： | 杨 勇,刘景洋,郭玉文,杨 敏.破碎聚氨酯硬泡时CFC-11的释放量和残留量[J].环境科学研究,2009,22(8):961-965. |
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| 作者姓名： | 杨 勇 刘景洋 郭玉文 杨 敏 |
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| 作者单位： | 1.中国环境科学研究院,北京 100012;西南交通大学环境科学与工程学院, 四川 成都 610031 |
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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： | 将聚氨酯硬泡在密闭室中破碎至不同粒径，低温加热后进行氧弹燃烧试验，利用气相色谱/质谱联用(GC/MS)定量每个过程中发泡剂CFC-11(CFCl3)的释放量.结果表明:CFC-11释放量随破碎颗粒粒径的减小而增大，过4 mm筛的颗粒释放效果最佳，CFC-11释放量占其总量的67%；泡沫中w(CFC-11)为20%左右，其中77%的CFC-11包裹在泡孔中，23%被泡沫固相吸附；即使将泡沫过1 mm筛，部分未打破泡孔中仍有6%的CFC-11，当破碎粒径接近泡孔平均直径0.3～0.4 mm时，CFC-11释放量保持不变，吸附于泡沫固相中的CFC-11在破碎过程中很难释放.
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| 关 键 词： | 破碎 聚氨酯硬泡 CFC-11 释放量 残留量 含量分布 |
| 收稿时间： | 2008/10/20 0:00:00 |
| 修稿时间： | 2008/12/18 0:00:00 |
Release and Residual Mass and Content Distribution of CFC-11 during Shredding of Rigid Polyurethane Foam |
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| YANG Yong,LIU Jing-yang,GUO Yu-wen and YANG Min.Release and Residual Mass and Content Distribution of CFC-11 during Shredding of Rigid Polyurethane Foam[J].Research of Environmental Sciences,2009,22(8):961-965. |
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| Authors: | YANG Yong LIU Jing-yang GUO Yu-wen and YANG Min |
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| Institution: | 1.Chinese Research Academy of Environmental Sciences, Beijing 100012, China;School of Environmental Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China2.Chinese Research Academy of Environmental Sciences, Beijing 100012, China3.School of Environmental Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China |
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| Abstract: | After rigid polyurethane foam(PUR foam) was shredded to different particle sizes in a closed room,foam particles were heated at low temperature and then an oxygen bomb was used to combust the foam particles.Finally,the release mass of blowing agent CFC-11 in each process was determined by GC/MS.The results show that the release mass of CFC-11 increases with the decrease of shredding size;shredding for passing through a 4 mm sieve is the optimum such that 67% of the total content of CFC-11 is released.The co... |
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| Keywords: | CFC-11 |
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