To satisfy engineering requirements for mechanics performance of neutron shielding material

short carbon fiber was used to reinforce the traditional containing B4C neutron shielding material and effects of fiber content

length and surface treatment to mechanics performance of material was discussed.Based on Americium-Beryllium neutron source

material’s neutron shielding performance was tested.The result of experiment prove that tensile strength of material which the quality ratio of resin and fiber is 5:1 is comparatively excellent for 10wt% B4C of carbon fiber reinforced epoxy resin.The tensile properties of material change little with the fiber length ranged from 3–10 mm.The treatment of fiber surface with silane coupling agent KH-550 can increase the tensile properties of materials by 20% compared with the untreated of that.A result of shielding experiment that the novel neutron shielding material can satisfy the neutron shielding requirements can be obtained by comparing with B4C/polypropylene materials.The material has good mechanical properties and wide application prospect.