Universal Journal of Physics and Application Vol. 10(5), pp. 150 - 156
DOI: 10.13189/ujpa.2016.100502
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Surface Decontamination Studies of 137Cs and 85Sr Using Polymer Gel


Pham Quynh Luong 1,*, Nguyen Van Chinh 1, Nguyen Dinh Lam 2
1 Institute for Technology of Radioactive and Rare Elements (ITRRE), Vietnam
2 Nuclear Research Institute (NRI), Vietnam Atomic Energy Institute (VINATOM), Vietnam

ABSTRACT

The polymer gel solution consist of water soluble polymer preferably polyvinyl alcohol (PVA), plasticizing agent (glycerine) and chelating agents (citric acid) can decontaminate efficiency of 137Cs and 84Sr on the contaminated surfaces. Decontamination efficiency obtained from 95- 99% on glass and stainless steel, ceramic and PVC plastic surfaces, which also depended on radioactivity and coating thickness. Optimization of film thickness is around 200 microns. Decontamination efficiency of Polymer gel were compared with DeconGel 1101 (product from USA) on surfaces. IR spectra studies indicated that Cs+ and Sr2+ ions interacted with PVA and citric acid in Polymer gel through C=O group. Mechanisms of this decontamination process have revealed.

KEYWORDS
Strippable Coating, Polymer Coating, Decontamination by Polymer

Cite this paper
Pham Quynh Luong , Nguyen Van Chinh , Nguyen Dinh Lam . "Surface Decontamination Studies of 137Cs and 85Sr Using Polymer Gel." Universal Journal of Physics and Application 10.5 (2016) 150 - 156. doi: 10.13189/ujpa.2016.100502.