Research on gamma ray shielding performance of tungsten powder modified 3D spacer fabric composites

doi:10.19936/j.cnki.2096-8000.20240828.004

Abstract

Abstract: Nuclear energy generates ionizing radiation, such as X-rays and gamma rays, which require shielding materials for protection. Traditional X-ray and gamma ray shielding materials have drawbacks such as high weight, susceptibility to corrosion, toxicity, and low structural mechanical properties. Therefore, developing new composite with light weight, excellent radiation performance, and integrated structure/function is an important direction for the development of radiation protection technology. Based on densities and the theoretical calculation values of the mass attenuation coefficients of various tungsten containing powders, tungsten oxide was selected as the gamma ray shielding filler. Tungsten containing powders were used to modify epoxy resin and composite with glass fiber three-dimensional(3D)spacer fabric to form a fiber-reinforced composite with sandwich structure. The influence of different contents of tungsten oxide on the shielding ability of composite for ⁶⁰Co and ¹³⁷Cs gamma rays and their flattening performance was investigated. The experimental results show that tungsten oxide powder significantly improves the radiation shielding performance of composite, and the degree of improvement is similar to the theoretical calculation value. Under the same shielding rate, the weight of composite is significantly lower than that of iron. In addition, tungsten oxide also improves the compressive strength and modulus of the 3D spacer fabric composites.

Key words: resin matrix composite, tungsten oxide powder, 3D spacer fabric, gamma rays, radiation shielding

CLC Number:

TB332

LIU Yushun, WEI Xiaolin, LIU Benben, GU Yizhuo. Research on gamma ray shielding performance of tungsten powder modified 3D spacer fabric composites[J]. COMPOSITES SCIENCE AND ENGINEERING, 2024, 0(8): 24-31.

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