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聚苯乙烯泡沫中六溴环十二烷(HBCD)释放速率测定方法

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石亚楠, 詹发强, 袁和平, 于颖, 王龙星, 张海军, 陈吉平. 聚苯乙烯泡沫中六溴环十二烷(HBCD)释放速率测定方法[J]. 环境化学, 2018, 37(2): 264-270. doi: 10.7524/j.issn.0254-6108.2017071104
引用本文: 石亚楠, 詹发强, 袁和平, 于颖, 王龙星, 张海军, 陈吉平. 聚苯乙烯泡沫中六溴环十二烷(HBCD)释放速率测定方法[J]. 环境化学, 2018, 37(2): 264-270. doi: 10.7524/j.issn.0254-6108.2017071104
shu
SHI Ya, ZHAN Faqiang, YUAN Heping, YU Ying, WANG Longxing, ZHANG Haijun, CHEN Jiping. A new method for measuring the emission rate of hexabromocyclododecane (HBCD) from polystyrene foam[J]. Environmental Chemistry, 2018, 37(2): 264-270. doi: 10.7524/j.issn.0254-6108.2017071104
Citation: SHI Ya, ZHAN Faqiang, YUAN Heping, YU Ying, WANG Longxing, ZHANG Haijun, CHEN Jiping. A new method for measuring the emission rate of hexabromocyclododecane (HBCD) from polystyrene foam[J]. Environmental Chemistry, 2018, 37(2): 264-270. doi: 10.7524/j.issn.0254-6108.2017071104
shu

聚苯乙烯泡沫中六溴环十二烷(HBCD)释放速率测定方法

  • 1.

    大连海事大学环境科学与工程学院, 大连, 116026;

  • 2.

    中国科学院大连化学物理研究所, 中国科学院分离分析化学重点实验室, 大连, 116023

  • 基金项目:

    国家自然科学基金（21477125）和国家重点基础研究发展计划（973计划）（2015CB453100）资助.

A new method for measuring the emission rate of hexabromocyclododecane (HBCD) from polystyrene foam

  • 1.

    College of Environmental Sciences and Engineering, Dalian Maritime University, Dalian, 116026, China;

  • 2.

    CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China

  • Fund Project: Supported by the National Natual Science Foundation of China (21477125) and the National Basic Research Program of China (973 Program,2015CB453100).

  • 摘要: 本研究构建了适用于测定材料中半挥发性有机物释放速率的新型释放池装置，采用此释放池装置测定发泡聚苯乙烯（EPS）泡沫板中六溴环十二烷（HBCD）在60℃条件下的释放速率，并建立了HBCD的挥发释放模型.3种主要的HBCD非对映体（α-HBCD、β-HBCD和γ-HBCD）的释放行为并不存在明显差异；HBCD在吹扫气体中的浓度在前12 d逐渐增加，然后趋于稳定状态.HBCD在吹扫气体和释放池内壁间存在分配平衡，指数方程可以很好描述HBCD在释放池内壁的吸附水平与其在吹扫气体中浓度水平之间的关系.EPS在60℃条件下HBCD的释放速率为246.5 ng·m-2·d-1.释放模型模拟结果表明，HBCD在60℃条件下的释放主要依赖于其材料-气相分配系数K和对流传质系数hm，基本不受内部扩散系数D值的影响.
    Abstract: A new emission chamber was constructed for the measurments of the emission rates of semi-volatile organic compounds from materials. This emission chamber was used to measure the emission rate of hexabromocyclododecane (HBCD) from expanded polystyrene (EPS) foam at 60℃,and an emission model describing HBCD emission was developed. No significant difference was observed for the emission behavior of the three main HBCD diastereomers (α-HBCD,β-HBCD and γ-HBCD). The concentration of HBCD in purge gas gradually increased with time during the initial 12 days,and then leveled off. There was a partitioning equilibrium of HBCD between gas phase and emission chamber internal surface,and an exponential function could well fit the relationship between levels of HBCD adsorbed on the emission chamber internal surface and levels of HBCD in purge gas. The measured emission rate of HBCD from EPS foam was 246.5 ng·m-2·d-1 at 60℃. The simulation results of emission model indicated that HBCD emission was mainly controlled by material-gas partition coefficient K and convective mass-transfer coefficient hm,whereas independent of material-phase diffusion coefficient D at 60℃.
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  • 收稿日期:  2017-07-11
  • 刊出日期:  2018-02-15
石亚楠, 詹发强, 袁和平, 于颖, 王龙星, 张海军, 陈吉平. 聚苯乙烯泡沫中六溴环十二烷(HBCD)释放速率测定方法[J]. 环境化学, 2018, 37(2): 264-270. doi: 10.7524/j.issn.0254-6108.2017071104
引用本文: 石亚楠, 詹发强, 袁和平, 于颖, 王龙星, 张海军, 陈吉平. 聚苯乙烯泡沫中六溴环十二烷(HBCD)释放速率测定方法[J]. 环境化学, 2018, 37(2): 264-270. doi: 10.7524/j.issn.0254-6108.2017071104
shu
SHI Ya, ZHAN Faqiang, YUAN Heping, YU Ying, WANG Longxing, ZHANG Haijun, CHEN Jiping. A new method for measuring the emission rate of hexabromocyclododecane (HBCD) from polystyrene foam[J]. Environmental Chemistry, 2018, 37(2): 264-270. doi: 10.7524/j.issn.0254-6108.2017071104
Citation: SHI Ya, ZHAN Faqiang, YUAN Heping, YU Ying, WANG Longxing, ZHANG Haijun, CHEN Jiping. A new method for measuring the emission rate of hexabromocyclododecane (HBCD) from polystyrene foam[J]. Environmental Chemistry, 2018, 37(2): 264-270. doi: 10.7524/j.issn.0254-6108.2017071104
shu

聚苯乙烯泡沫中六溴环十二烷(HBCD)释放速率测定方法

  • 1.  大连海事大学环境科学与工程学院, 大连, 116026;
  • 2.  中国科学院大连化学物理研究所, 中国科学院分离分析化学重点实验室, 大连, 116023
  • 收稿日期:  2017-07-11
基金项目:

国家自然科学基金（21477125）和国家重点基础研究发展计划（973计划）（2015CB453100）资助.

摘要: 本研究构建了适用于测定材料中半挥发性有机物释放速率的新型释放池装置，采用此释放池装置测定发泡聚苯乙烯（EPS）泡沫板中六溴环十二烷（HBCD）在60℃条件下的释放速率，并建立了HBCD的挥发释放模型.3种主要的HBCD非对映体（α-HBCD、β-HBCD和γ-HBCD）的释放行为并不存在明显差异；HBCD在吹扫气体中的浓度在前12 d逐渐增加，然后趋于稳定状态.HBCD在吹扫气体和释放池内壁间存在分配平衡，指数方程可以很好描述HBCD在释放池内壁的吸附水平与其在吹扫气体中浓度水平之间的关系.EPS在60℃条件下HBCD的释放速率为246.5 ng·m-2·d-1.释放模型模拟结果表明，HBCD在60℃条件下的释放主要依赖于其材料-气相分配系数K和对流传质系数hm，基本不受内部扩散系数D值的影响.

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