| 用密闭小室测定建材VOC散发特性 |
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| 引用本文： | 曾海东,张寅平,王庆苑,王新轲.用密闭小室测定建材VOC散发特性[J].清华大学学报(自然科学版),2004,44(6):778-781. |
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| 作者姓名： | 曾海东 张寅平 王庆苑 王新轲 |
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| 作者单位： | 清华大学,建筑技术科学系,北京,100084 |
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| 摘 要： | 建筑材料散发的有机挥发物(VOC)能影响室内空气品质,为研究建材VOC的散发情况,提出了一种测量建材VOC散发特性(初始VOC平均浓度、分离系数)和对流传质系数的方法.选取了几种常见建材(复合地板、大芯板、地板砖和地毯)的甲醛散发作为测试对象,在密闭不锈钢小室内测量建材的甲醛散发曲线,用穿孔萃取仪测量建材内甲醛的平均浓度,通过拟合测量结果可以得出建材的散发参数.测试方法和测量结果为建材的筛选和VOC散发性能评价提供了参考依据.
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| 关 键 词： | 装修装饰材料 室内空气品质 有机挥发物(VOC) 传质 分离系数 |
| 文章编号： | 1000-0054(2004)06-0778-04 |
| 修稿时间： | 2003年9月27日 |
Measuring VOC emission characteristics of building materials in an airtight chamber |
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| ZENG Haidong,ZHANG Yinping,WANG Qingyuan,WANG Xinke.Measuring VOC emission characteristics of building materials in an airtight chamber[J].Journal of Tsinghua University(Science and Technology),2004,44(6):778-781. |
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| Authors: | ZENG Haidong ZHANG Yinping WANG Qingyuan WANG Xinke |
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| Abstract: | VOCs (volatile organic compounds) emitted from building materials can influence indoor air quality. This paper presents a method for measuring the VOC emission characteristics of building materials, including the average initial concentration, the partition coefficient and the convective mass transfer coefficient. The emission curves and average concentrations of formaldehyde emissions of some building materials (including plywood, particle board, PVC flooring and carpet) were measured using an airtight stainless chamber and perforation-extraction equipment. The experiment data can be used to guide the selection of building materials and for evaluating the emission characteristics of building materials. |
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| Keywords: | decorating and refurbishing materials indoor air quality volatile organic compounds (VOC) mass transfer partition coefficient |
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