Anti-radiation aerogel felt

Abstract

An anti-radiation aerogel felt comprises a textile layer, a mixed layer and an aerogel layer, the mixed layer is composed of an upper layer and a lower layer, the aerogel layer is wrapped between theupper layer and the lower layer, the textile layer is arranged outside the mixed layer, the textile layer, the mixed layer and the aerogel layer are formed in a composite mode through a composite process, and the mixed layer is formed by weaving a plurality of bamboo fiber strips in a crossed mode. The gaps between the bamboo fiber board layers are filled with fine graphite blocks, the thickness of the graphite blocks is the same as that of the bamboo fiber board layers, and the graphite blocks and the bamboo fiber board layers are bonded and fixed through glue to form a mixed board layer. Thematerial provided by the invention can play a role in protecting similar fast neutron rays. The anti-radiation aerogel felt can be applied to heat insulation of equipment with a radioactive medium, the total amount of radioactive rays entering the surrounding environment can be greatly reduced while heat preservation is achieved, and the anti-radiation aerogel felt plays a very positive role in industrial radiation protection safety and personnel health.

Description

technical field [0001] The patent of the invention relates to the field of heat preservation and radiation protection, specifically to a heat insulation and radiation protection that can be applied to high-temperature equipment or workshops with relatively large radiation, and is a new type of airgel with radiation protection and high heat insulation performance felt. Background technique [0002] Airgel is a form of solid matter, the smallest solid in the world, with a density as low as 3kg per cubic meter. It is a nanoporous network structure composed of ultrafine particles or polymer molecules, and the pores are filled with a gaseous dispersion medium. Its porosity can be as high as 99%, and the pore size is distributed in the nanometer range It is the lightest condensed matter material in the world. It has low refractive index, low electrical conductivity, and low sound propagation velocity. It has very wide applications in heat insulation materials, catalysts, sound at...

AI Technical Summary

Problems solved by technology

[0003] The nano-airgel mats prepared at this stage are mostly composed of silica airgel composite inorganic fibers, which have excellent temperature resistance and heat insulation performance, but they do not have radiation protection performance. In some places with large radiation such as nuclear islands In the equipment or plant of the system, the conventional airgel materials have certain limitations

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