
Boron-containing polyethylene is an efficient anti-neutron shielding material, with good catalytic activity, less corrosive to the equipment, and will not cause environmental pollution.
Boron-containing polyethylene is made by uniformly mixing boron carbide powder and lead powder in ultra-high molecular weight polyethylene materials, and is made of high-speed mixing, kneading, plasticization and hot pressing. Boron is a micro-alloying element that has the effect of absorbing neutrons, polyethylene is a hydrocarbon with a high hydrogen content and a good slowing effect on fast neutrons.
Compared with traditional metals and concrete, boron-containing polyethylene composite materials have the characteristics of low density, good attenuation curve, easy to use, low cost, good processing performance, etc. Polyethylene resin H element content is high, Irradiation resistance is good, and can be effectively used for neutron radiation in neutron and γ mixed radiation field to meet the needs of radiation occasions of different energy levels.
Fields of application:
Boron-containing polyethylene board has good processing performance, neutron ray shielding performance, radiation resistance and aging resistance, and the products have been successfully used in the research fields of spent fuel grating of nuclear power plants, nuclear power ships, nuclear reactor neutron radiation, PetroChina, the military, the Chinese Academy of Sciences, research laboratories, hospitals and nuclear reactor control rod materials and nuclear shielding materials.