Gamma ray irradiation resistant polyurea material and preparation method thereof

• Main Authors: JIANG XINYI, GUO HUI, LING XINGPENG, JIANG LINZHI, CHEN YU, LU CHUNJIANG
• Format: Patent
• Language: Chinese; English
• Published: 09.02.2021
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; CORRECTING FLUIDS; DYES; FILLING PASTES; INKS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF MATERIALS THEREFOR; WOODSTAINS

The invention provides a gamma ray irradiation resistant polyurea elastomer material and a preparation method thereof, which belong to the crossing field of high polymer material synthesis and nuclearirradiation modification. The material is formed by mixing a component A isocyanate, a component B polytetramethylene ether di-p-aminobenzoate, an antioxidant aid and the like under high pressure, coating and pouring. The mass part of the component A is controlled to be 20-30, the mass part of the component B is controlled to be 65-75, and the mass part of the aid is controlled to be 5-10. The gamma ray irradiation resistance of the polyurea material is improved by using the hindered phenol antioxidant, and the influence of gamma ray irradiation on the toughness of the synthetic material is adjusted by using the reactive diluent. After the polyurea material is irradiated by gamma rays, the mechanical property index of the polyurea material is improved, and the polyurea material is suitable for nuclear power stati