RADIATION PROTECTION COMPOSITE MATERIAL AND METHOD FOR PRODUCING SAID MATERIAL

摘要

The invention relates to protection against ionising radiation, in particular to radiation protection composite materials and to the methods for production thereof. The inventive composite material comprises the following components: 20-22 mass % of epoxy resin, 10.0-11.5 mass % of polydisperse tungsten mixture, 1.0-1,5 mass % of nickel powder, 9.0-10.0 mass % of mineral fibre, silicate compound being the rest. Said radiation protection material contains epoxy-diane resin, an aliphatic epoxide and a modified amine hardener. The composite material is produced by introducing a fine metallic powder into the epoxy resin. Said fine metallic powder consists of a mixture of powdered tungsten, which comprises 80 % of round particles and 20 % of flat particles having size of 100x50, with a nickel powder. The mixture of a silicate compound and milled mineral fibre is also added. The hardening of said mixture is carried out at normal conditions. The use of the inventive material increases the X-ray attenuation factor and reduces a metal consumption. The inventive method for producing said material is simple and economic.