| abstract |
The invention discloses a foam-type low-density silicone rubber-based flexible neutron shielding material and a preparation method thereof. In parts by weight, the formula comprises: 100 parts of phenyl silicone rubber mixed rubber and 35 to 155 parts of a neutron absorber , 7.5 to 18 parts of interface fusion agent, and 100 to 200 parts of density regulator. The present invention uses silicone rubber as the matrix, adds a certain amount of neutron absorber, interfacial fusion agent and density regulator respectively, and through radiation cross-linking, dissolution and pore formation, and freeze drying, a low-temperature composite material with excellent comprehensive performance can be obtained. Density flexible neutron shielding material; this material not only has excellent neutron shielding effect, but also has light weight, high toughness and environmental friendliness, and can be tailored in any shape according to the actual use scene. |