Study on Strippable Membrane Material Used for Radioactive Decontamination on Concrete Surface
WANG Jing1,2, LI Jian1,2, WANG Jianhui1,2, ZHENG Li1,2, LI Langtao3
1 Research Institute for National Defense Engineering of Academy of Military Science PLA China, Luoyang 471023; 2 Henan Key Laboratory of Special Protective Materials, Luoyang 471023; 3 Unit. 92351, Sanya 572016;
Abstract: A novel strippable membrane material with single decontamination efficiency of over 91.98% was prepared for ra-dioactive decontamination on the concrete surface. Three basic emulsions, water-based pure acrylic emulsion, vinegar acrylic emulsion and rubber latex emulsion, were selected from the common film-forming emulsion for the recombination experiment. Experiments show that the optimal mass ratio of the three emulsions is 5∶3∶2, and the decontamination efficiency of the emulsion to radioactive uranium dust is 81.68%. The influences of the doping amount of surfactant SDBS and complexing agent EDTA-2Na on the material decontamination performance were studied. The results show that the surfactant SDBS can improve the decontamination performance of the material by reducing the surface tension and increasing the solubility. When the mass fraction of SDBS is controlled at 5%, the decontamination efficiency reaches up to 87.25%, which increases by 6.8% compared with the basic allocation. Moderate EDTA-2Na can increase the decontamination performance by forming metal chelates. When the mass fraction of EDTA-2Na is controlled at 0.5%—1.0%, the decontamination rate of the material is optimal, reaching 91.98%—92.23%.
王静, 李坚, 汪剑辉, 郑力, 李浪涛. 用于混凝土表面放射性沾染清除的剥离型膜材料研究[J]. 材料导报, 2018, 32(20): 3673-3676.
WANG Jing, LI Jian, WANG Jianhui, ZHENG Li, LI Langtao. Study on Strippable Membrane Material Used for Radioactive Decontamination on Concrete Surface. Materials Reports, 2018, 32(20): 3673-3676.
1 Kaminski M D, Lee S D, Magnuson M. Wide-area decontamination in an urban environment after radiological dispersion: A review and perspectives[J]. Journal of Hazardous Materials,2016,305:67.
2 Mallampati S R, Mitoma Y, Okuda T, et al. Preferential removal and immobilization of stable and radioactive cesium in contaminated fly ash with nanometallic Ca/CaO methanol suspension[J]. Journal of Hazardous Materials,2014,279:52.
3 Yang H M, Hwang K S, Park C W, et al. Polyvinyl alcohol-borate hydrogel containing magnetic adsorbent for surface decontamination[J]. Annals of Nuclear Energy,2017,109:359.
4 Kim G N, Kim S S, Park H M, et al. Cs-137 and Cs-134 removal from radioactive ash using washing-electrokinetic equipment[J]. Annals of Nuclear Energy,2013,57(5):311.
5 Kameo Y, Nakashima M, Hirabayashi T. Dry flowing abrasive decontamination technique for pipe systems with swirling air flow[J]. Nuclear Technology,2003,144(1):76.
6 He Z Y, Zhou Y L, Zhang H Y, et al. Preparation and performance of the BA/MMA/AA three element copolymer base can stripping and suppression of the radioactive aerosol[J].Journal of Wuhan University of Technology,2017(3):10(in Chinese).
何智宇,周元林,张慧艳,等.BA/MMA/AA三元共聚物基可剥离放射性气溶胶压制剂的制备及性能研究[J].武汉理工大学学报,2017(3):10.
7 Liu R L, Li Y T, Zhou Y L, et al. Fabrication of poly (methyl methacrylate)-block-poly (methacrylic acid) diblock copolymer as a self-embrittling strippable coating for radioactive decontamination[J]. Chemistry Letters,2016,45(7):793.
8 王天运,雷志良,刘家洛,等.剥离型压制去污剂:中国,200410060571.0[P].2006-04-19.
9 Gray H N, Jorgensen B, McClaugherty D L, et al. Smart polymeric coatings for surface decontamination[J]. Industrial & Engineering Chemistry Research,2001,40(16):3540.
10 Rao S V S, Lal K B. Surface decontamination studies using polyvinyl acetate based strippable polymer[J]. Journal of Radioanalytical and Nuclear Chemistry,2004,260(1):35.
11 Jin Y, Feng L, Xie J, et al. The study on the decontamination of uranium from the surface of stainless steel by using strippable film[J]. Chemical Research & Application,2002,14(1):116.
12 Wang Z, Yang Y, Wang H, et al. Development of strippable PVA film for cleaning radioactive dusts on device surface[J]. Nuclear Techniques,2010,33(9):714.
13 Yang E B, Xu B L, Zhao X Y, et al. Development of peelable films for decontamination and its preformance[J]. Journal of Nuclear and Radiochemistry,1990,12(3):188(in Chinese).
杨恩波,徐宝兰,赵秀岩,等.可剥离式放射性去污膜的研制和性能[J].核化学与放射化学,1990,12(3):188.
14 Toader G, Stanescu P O, Zecheru T, et al. Water-based strippable coatings containing bentonite clay for heavy metal surface decontamination[J]. Arabian Journal of Chemistry, DOI:10.1016/j.arabjc.2016.03.009.
15 Yang H M, Park C W, Lee K W. Polymeric coatings for surface decontamination and ecofriendly volume reduction of radioactive waste after use[J]. Progress in Nuclear Energy,2018,104:67.
16 王天运.剥离型压制去污剂制备与性能研究[R].洛阳:总参工程兵科研三所,2005.
17 Zhao Q K, Wei J Y, Zhao X. Low-level radioactive wastewater treatment adsorption removal of 110mAg citric acid advanced oxidation processes[J].Acta Scientiae Circumstantiae,2016,36(9):3213(in Chinese).
赵庆凯,尉继英,赵璇.柠檬酸对核电站低放废液中110mAg吸附去除性能的影响[J].环境科学学报,2016,36(9):3213.
18 Serne R J, Cantrell C J, Lindenmeier C W, et al. Radionuclide-chelating agent complexes in low-level radioactive decontamination waste; stability, adsorption and transport potential[R]. Richland:Pacific Northwest National Lab.,2002.
渝公网安备50019002502923号 版权所有：《材料导报》编辑部
2018, Vol. 32 
