COMPOSITION FOR NEUTRON SHIELD MATERIAL, SHIELD MATERIAL AND CONTAINER

摘要

A neutron shield material that exhibits heat resistance even at high temperatures during the storage of nuclear fuel spent according to high combustion degree, ensuring neutron shielding capacity. A neutron shield material having its heat resistance enhanced by the disuse of amine hardening agents and ensuring neutron shielding capacity is provided by a composition for neutron shield material, comprising a polymerization initiator, a polymerization component, a density increasing agent and a boron compound. Specifically, an epoxy component and an oxetane component are preferably used as the above polymerization component.