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| 新型放射性气溶胶取样过滤膜的研制 | |
| 引用本文： | 曾心苗,黄子瀚,张龙,王红杰,鲍矛,叶仕有,刘茂林. 新型放射性气溶胶取样过滤膜的研制[J]. 膜科学与技术, 2009, 29(6) |
| 作者姓名： | 曾心苗 黄子瀚 张龙 王红杰 鲍矛 叶仕有 刘茂林 |
| 作者单位： | 1. 北京市射线应用研究中心,北京,100012 2. 中国工程物理研究院,绵阳,621900 3. 清华大学化工系,北京,100084 |
| 摘 要： | 制备了用于放射性气溶胶取样监测的增强微孔滤膜,讨论了铸膜液配方、制膜工艺参数和添加剂对膜结构和性能的影响.实验结果表明,以PVP为致孔添加剂,以面密度较低的无纺布为支撑层,控制铸膜液浓度和成膜工艺,可得到表面收集特性好,过滤效率高的PVDF双功能层增强微孔滤膜.该增强微孔滤膜取样阻力小,流量大,强度高,配合人工核素气溶胶快速监测装置,可进行高氡浓度环境下α放射性气溶胶的实时连续监测. |
| 关 键 词： | 放射性气溶胶 表面收集特性 增强微孔膜 添加剂 制膜条件 |
Research and development of a new radioactive aerosol sampling and filter membrane |
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| ZENG Xinmiao,HUANG Zihan,ZHANG Long,WANG Hongjie,BAO Mao,YE Shiyou,LIU Maolin. Research and development of a new radioactive aerosol sampling and filter membrane[J]. Membrane Science and Technology, 2009, 29(6) | |
| Authors: | ZENG Xinmiao HUANG Zihan ZHANG Long WANG Hongjie BAO Mao YE Shiyou LIU Maolin |
| Affiliation: | ZENG Xinmiao1,HUANG Zihan1,ZHANG Long1,WANG Hongjie1,BAO Mao1,YE Shiyou2,LIU Maolin3(1.Beijing Radiation Application Research Center,Beijing 100012,China,2.China Academy of Engineering Physics,Mianyang 621900,3.Chemical Engineering Department of Tsinghua University,Beijing 100084,China) |
| Abstract: | An reinforced microporous membrane using to sampling and filter radioactive aerosol was investigated. The effect of the casting solution, casting technology and additives on the properties and structure of the membrane was studied. The results showed that high - performed PVDF reinforced membrane with double functional layer could be obtained when using PVP as porogenic agents, and low surface density non - woven fabric as supporting layers; as well as controlling the casting solution concentration and casting technology. This membrane was characterized by good surface collection characteristics and high filtration efficiency. And it also had low sampling resistance, large flow, and high tensile strength. The equipment for rapid detecting human- made nu-clide aerosol can monitoring the aerosol concentration rapidly and continuously in high radon environment com-bining with this membrane. |
| Keywords: | radioactive aerosol surface collection characteristics reinforced microporous membrane additive preparation condition of the membrane |
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