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Effect of kGy neutron doses on polymer composite consists of poly (vinylidene difluoride)–lithium bis(oxalato)borate
Radiation Physics and Chemistry ( IF 2.9 ) Pub Date : 2021-08-14 , DOI: 10.1016/j.radphyschem.2021.109747
N.A. Heffny 1, 2 , M.U. Khandaker 2, 3 , Z. Osman 1 , H.J. Woo 1 , M.H. Rabir 4 , A.K. Arof 1
Affiliation  

Present work is aimed to explore the electrical and structural behavior of polymer composite consists of poly (vinylidene difluoride)–lithium bis(oxalato)borate under tens of kGy neutron dose. PVDF-LiBOB samples were prepared via solution casting method. The samples were irradiated with neutron doses of 15, 23, 31, 39 and 47 kGy using Reaktor TRIGA PUSPATI at Malaysian Nuclear Agency. X-ray diffraction analysis reveals an increase of crystallinity with the neutron doses, which indicates an improvement of the mechanical strength of the material. Deconvolution of Fourier transform infrared spectra from 1830 to 1760 cm−1 confirms a reduction of free ions following the radiation dose. Electrochemical impedance spectroscopy showed a decrease in ionic conductivity with an increase in neutron dose, which indicates the non-conducting/radiation resistant behavior of the studied polymer composite. Furthermore, the dielectric constant shows an inverse behavior with the relaxation time following the increase of neutron dose until 47 kGy. Key transport parameters such as mobile charge concentration, mobile ion mobility and mobile ion diffusion coefficient supports the evidence to the increased radiation resistant behavior of PVDF-LiBOB with the increase of neutron doses. As such, the studied low-cost polymer composite (PVDF-LiBOB) has the potential to be used as a radiation resistant coating materials for protecting of sophisticated industrial devices (e.g., energy storage devices) which may provide a better device stability.



中文翻译:

kGy 中子剂量对由聚(偏二氟乙烯)-双(草酸)硼酸锂组成的聚合物复合材料的影响

目前的工作旨在探索由聚(偏二氟乙烯)-双(草酸根)硼酸锂组成的聚合物复合材料在数十 kGy 中子剂量下的电学和结构行为。PVDF-LiBOB 样品通过溶液浇铸法制备。使用马来西亚核机构的 Reaktor TRIGA PUSPATI 用 15、23、31、39 和 47 kGy 的中子剂量辐照样品。X 射线衍射分析显示结晶度随着中子剂量的增加而增加,这表明材料的机械强度有所提高。傅里叶变换红外光谱从 1830 到 1760 cm -1 的解卷积证实了辐射剂量后自由离子的减少。电化学阻抗谱显示离子电导率随着中子剂量的增加而降低,这表明所研究的聚合物复合材料具有非导电/抗辐射行为。此外,介电常数随着中子剂量增加到 47 kGy 后的弛豫时间显示出相反的行为。移动电荷浓度、移动离子迁移率和移动离子扩散系数等关键传输参数支持了 PVDF-LiBOB 随着中子剂量增加而增强的抗辐射行为的证据。因此,所研究的低成本聚合物复合材料(PVDF-LiBOB)有可能用作抗辐射涂层材料,用于保护复杂的工业设备(例如,

更新日期:2021-08-17
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