| POLYMERS AND POLYMER MATRIX COMPOSITES |
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| Study on Irradiation and Thermal Aging Resistance of Epoxy Resin/Boron Carbide Composites |
| ZHANG Chenghao1, WANG Shuojue2, TIAN Lin1, GU Xiaoxia1, CAO Ke3, ZHANG Long3, MA Cankun1, WANG Liancai3, MA Huiling1,*, ZHANG Xiuqin1
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1 Beijing Key Laboratory of Clothing Materials R & D and Assessment, Beijing Engineering Research Center of Textile Nanofiber, School of Materials Design & Engineering, Beijing Institute of Fashion Technology,Beijing 100029, China
2 Aerospace Research Institute of Materials & Processing Technology, Beijing 100076, China
3 Beijing Key Laboratory of Radiation Advanced Materials, Beijing Research Center for Radiation Application, Beijing 100015, China |
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Abstract Boron carbide/epoxy resin composite for neutron shielding application was prepared by a facile thermal curing method with epoxy resin as matrix and boron carbide (B4C) as neutron absorbing filler. The microstructures of the composites were characterized by scanning electron microscopy (SEM). The curing degree and thermostability of the composites were further investigated via differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). The effects of γ-irradiation and thermal aging on the composites were analyzed by tensile and impact tests. The results indicate that B4C was uniformly dispersed in the epoxy resin matrix. The tensile stress of the composites slightly decreased after thermal aging at 150 ℃ (1 and 3 weeks) and 100 kGy irradiation. And the neutron shielding performances of the composites were simulated by SuperMC software. When the thickness of the composite was 5 mm, radiation shielding effectiveness of the composite for thermal and slow neutrons was 99% and 63%, respectively. This composite is expected to be a new type of neutron shielding material in spent fuel storage tanks.
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Published: 10 December 2023
Online: 2023-12-08
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| Fund:Beijing Nova Program (Z181100006218087) and Beijing Scholars Program (RCQJ20303). |
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2023, Vol. 37 
