Background: The corrosive

highly radioactive and humid-hot environment in nuclear power plant requires an overall performance for neutron shielding material. Purpose: This study aims to develop a new type of AFG90-H epoxy resin-based neutron shielding composite which would tolerate high temperature in a complex environment. Methods: The preparation of the composite materials is doped functional particles into the epoxy resin matrix

and the composite was tested for its radiation resistance

high temperature mechanical properties

neutron shielding and corrosion resistance. Results: In the 42-kGy radiation environment

with the glass transition temperature reaching 262 oC

the bending strength of the composite declined by only 1.63%

which showed better neutron shielding performance than common materials such as high density polyethylene (HDPE)

paraffin and 6002 epoxy resin (EP). By adding the B4C particles

the neutron shielding performance and temperature mechanical properties of the composite were improved greatly

and the corrosion resistance performance did not degrade. Conclusion: Due to its excellent performance in temperature

corrosion and radiation resistance

as well as its low density

this composite could be used as the neutron shielding layer for mobile detection equipment. Abstract