紫外线辐射对氯乙烯单体从未增塑聚氯乙烯管道中迁移的影响。
Effect of UV-radiation on the migration of vinyl chloride monomer from unplasticized PVC pipes.
作者信息
Al-Malack Muhammad H
机构信息
Research Institute, KFUPM, Dhahran, Saudi Arabia.
出版信息
J Environ Sci Health A Tox Hazard Subst Environ Eng. 2004;39(1):145-57. doi: 10.1081/ese-120027374.
The effect of direct exposure to UV-radiation on the migration of vinyl chloride monomer (VCM) from unplasticized polyvinyl chloride (uPVC) pipes was investigated using locally manufactured pipes. Specimens 33-cm long were used throughout the research. The investigation was carried out, at different times of exposure to a UV-radiation. The VCM concentration in the water was evaluated using the gas chromatography (GC)/head-space technique. A VCM concentration of 2.3 microg/L (ppb) was detected after 14 days of exposure to the UV-radiation. The initial VCM concentration in the uPVC pipe was calculated and the diffusion coefficient of VCM was expressed as a function of time.
使用本地制造的管道，研究了直接暴露于紫外线辐射对氯乙烯单体（VCM）从未增塑聚氯乙烯（uPVC）管道中迁移的影响。在整个研究过程中使用了33厘米长的样本。在不同的紫外线辐射暴露时间进行了调查。使用气相色谱（GC）/顶空技术评估水中的VCM浓度。在暴露于紫外线辐射14天后，检测到VCM浓度为2.3微克/升（ppb）。计算了uPVC管道中的初始VCM浓度，并将VCM的扩散系数表示为时间的函数。
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