Nuclear Engineering and Technology

Korean Nuclear Society (한국원자력학회)
권호 표지
DOI QR코드

DOI QR Code

Preparation and characteristics of a flexible neutron and γ-ray shielding and radiation-resistant material reinforced by benzophenone

  • Gong, Pin (Department of Nuclear Science & Engineering, Nanjing University of Aeronautics and Astronautics) ;
  • Ni, Minxuan (Department of Nuclear Science & Engineering, Nanjing University of Aeronautics and Astronautics) ;
  • Chai, Hao (Department of Nuclear Science & Engineering, Nanjing University of Aeronautics and Astronautics) ;
  • Chen, Feida (Department of Nuclear Science & Engineering, Nanjing University of Aeronautics and Astronautics) ;
  • Tang, Xiaobin (Department of Nuclear Science & Engineering, Nanjing University of Aeronautics and Astronautics)
  • Received : 2017.02.25
  • Accepted : 2018.01.09
  • Published : 2018.04.25
Download PDF
⟨ Previous Next ⟩

Abstract

With a highly functional methyl vinyl silicone rubber (VMQ) matrix and filler materials of $B_4C$, PbO, and benzophenone (BP) and through powder surface modification, silicone rubber mixing, and vulcanized molding, a flexible radiation shielding and resistant composite was prepared in the study. The dispersion property of the powder in the matrix filler was improved by powder surface modification. BP was added into the matrix to enhance the radiation resistance performance of the composites. After irradiation, the tensile strength, elongation, and tear strength of the composites decreased, while the Shore hardness of the composites and the crosslinking density of the VMQ matrix increased. Moreover, the composites with BP showed better mechanical properties and smaller crosslinking density than those without BP after irradiation. The initial degradation temperatures of the composites containing BP before and after irradiation were $323.6^{\circ}C$ and $335.3^{\circ}C$, respectively. The transmission of neutrons for a 2-mm thick sample was only 0.12 for an Am-Be neutron source. The transmission of ${\gamma}$-rays with energies of 0.662, 1.173, and 1.332 MeV for 2-cm thick samples were 0.7, 0.782, and 0.795, respectively.

Keywords

References

  1. B.F. Myasoedov, S.N. Kalmykov, Nuclear power industry and the environment, Mendeleev. Commun 25 (2015) 319-328. https://doi.org/10.1016/j.mencom.2015.09.001
  2. X.B. Tang, X.X. Hou, D.Y. Shu, P. Zhai, Research on the interaction mechanism between quantum dots and radionuclides for the improvement of Cerenkov luminescence imaging, Sci. China. Technol. Sci. 58 (2015) 1712-1716. https://doi.org/10.1007/s11431-015-5897-x
  3. P.Y. Lee, Y.H. Liu, S.H. Jiang, Are high energy proton beams ideal for AB-BNCT? A brief discussion from the viewpoint of fast neutron contamination control, Appl. Radiat. Isot. 88 (2014) 206-210. https://doi.org/10.1016/j.apradiso.2014.03.008
  4. M. Zucchetti, A. Ciampichetti, Safety and radioactive waste management aspects of the ignitor fusion experiment, Fusion. Sci. Technol 56 (2009) 814-818. https://doi.org/10.13182/FST56-814
  5. H.Y. Yu, X.B. Tang, P. Wang, F.D. Chen, H. Chai, D. Chen, Safety verification of radiation shielding and heat transfer for a model for dry, Nucl. Eng. Des 291 (2015) 287-294. https://doi.org/10.1016/j.nucengdes.2015.05.021
  6. A.M. Sukegawa, Y. Anayama, Flexible heat-resistant neutron and gamma-ray shielding resins, Prog. Nucl. Sci. Technol 4 (2014) 627-630. https://doi.org/10.15669/pnst.4.627
  7. J.W. Shin, J.W. Lee, S. Yu, B.K. Baek, J.P. Hong, Y. Seo, W.N. Kim, S.M. Hong, C.M. Koo, Polyethylene/boron-containing composites for radiation shielding, Thermochim. Acta 585 (2014) 5-9. https://doi.org/10.1016/j.tca.2014.03.039
  8. J. Jung, J. Kim, Y.R. Uhm, J.K. Jeon, S. Lee, H.M. Lee, C.K. Rhee, Preparations and thermal properties of micro- and nano-BN dispersed HDPE composites, Thermochim. Acta 499 (2010) 8-14. https://doi.org/10.1016/j.tca.2009.10.013
  9. M. Kurudirek, Effective atomic number, energy loss and radiation damage studies in some materials commonly used in nuclear applications for heavy charged particles such as H, C,Mg, Fe, Te, Pb and U, Radiat. Phys. Chem. 122 (2016) 15-23. https://doi.org/10.1016/j.radphyschem.2016.01.012
  10. M. Kurudirek, Radiation shielding and effective atomic number studies in different types of shielding concretes, lead base and non-lead base glass systems for total electron interaction: A comparative study, Nucl. Eng. Des 280 (2014) 440-448. https://doi.org/10.1016/j.nucengdes.2014.09.020
  11. M. Kurudirek, D. Sardari, N. Khaledi, et al., Investigation of X-and gamma ray photons buildup in some neutron shielding materials using GP fitting approximation, Ann. Nucl. Energy 53 (2013) 485-491. https://doi.org/10.1016/j.anucene.2012.08.002
  12. I. Akkurt, H. Akyildirim, B. Mavi, S. Kilincarslan, C. Basyigit, Radiation shielding of concrete containing zeolite, Radiat. Meas 45 (2010) 827-830. https://doi.org/10.1016/j.radmeas.2010.04.012
  13. M. Saiyad,N.M.Devashrayee,R.K.Mevada, Study the effect of dispersion of filler in polymer compositefor radiation shielding, Polym. Compos. 35(2014) 1263-1266. https://doi.org/10.1002/pc.22776
  14. Y.P. Huang, W.J. Zhang, L. Liang, J. Xu, Z. Chen, A "Sandwich" type of neutron shielding composite filled with boron carbide reinforced by carbon fiber, Chem. Eng. J 220 (2013) 143-150. https://doi.org/10.1016/j.cej.2013.01.059
  15. H. Chai, X.B. Tang, M.X. Ni, F.D. Chen, Y. Zhang, D. Chen, Y.L. Qiu, Preparation and properties of flexible flame-retardant neutron shielding material based on methyl vinyl silicone rubber, J. Nucl. Mater. 464 (2015) 210-215. https://doi.org/10.1016/j.jnucmat.2015.04.048
  16. S.E. Gwaily, M. Madani, H.H. Hassan, Study of electrophysical characteristics of lead-natural rubber composites as radiation shields, Polym. Compos. 23 (2002) 495-499. https://doi.org/10.1002/pc.10450
  17. A.B. Azeez, K.S. Mohammed, M.M.A. Abdullah, N.N. Zulkepli, A.V. Sandu, K. Hussin, A. Rahmat, Design of flexible green anti radiation shielding material against Gamma-ray, Mater. Plast. 51 (2014) 300-308.
  18. M.C. Li, X. Ge, U.R. Cho, Mechanical performance, water absorption behavior and biodegradability of poly(methyl methacrylate)-modified starch/SBR biocomposites, Macromol. Res. 21 (2013) 793-800. https://doi.org/10.1007/s13233-013-1088-4
  19. E. Esmizadeh, G. Naderi, M. Barmar, Effect of Organo-clay on Properties and Mechanical Behavior of Fluorosilicone Rubber, Fiber. Polym. 15 (2014) 2376-2385. https://doi.org/10.1007/s12221-014-2376-0
  20. M.K. Lee, J.K. Lee, J.W. Kim, G.J. Lee, Properties of B4C-PbO-Al(OH)3-epoxy nanocomposite prepared by ultrasonic dispersion approach for high temperature neutron shields, J. Nucl. Mater 445 (2014) 63-71. https://doi.org/10.1016/j.jnucmat.2013.10.051
  21. A.J. Gu, G.Z. Liang, Thermal degradation behaviour and kinetic analysis of epoxy/montmorillonite nanocomposites, Polym. Degrad. Stabil. 80 (2003) 383-391. https://doi.org/10.1016/S0141-3910(03)00026-0

Cited by

  1. The use of isophthalic-bismuth polymer composites as radiation shielding barriers in nuclear medicine vol.6, pp.5, 2019, https://doi.org/10.1088/2053-1591/ab0578
  2. X-ray attenuation and mechanical properties of tungsten-silicone rubber nanocomposites vol.6, pp.8, 2018, https://doi.org/10.1088/2053-1591/ab1a89