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INVENTION
Patent of the Russian Federation RU2194678
POLYMERBETON FOR PROTECTION FROM RADIATION
The name of the inventor: Smirnov VA; Korolev EV; Proshin A.P.
The name of the patent holder: Penza State Architectural and Construction Academy
Address for correspondence: 440028, Penza, ul. G. Titova, 28, Penza State Academy of Architecture and Construction, Patent Department
Date of commencement of the patent: 2001.03.27
The invention relates to building materials made on the basis of epoxy resin and can be used to protect building structures from the effects of ionizing radiation. Polymerconcrete for protection against radiation contains polyethylene polyamine, ED-16 epoxy resin as binder, KO-922 varnish as a modifier, mineral industry with a specific surface of 200 m 2 / kg and an average density of 5100 kg / m as a mineral filler 3 , as a filler - a metal shot with a particle diameter of 3-4 mm and an average density of 7000-11000 kg / m3 with the following content of the components, mass%: epoxy 4.76-5.40; Polyethylene polyamine 0.71-0.81; Modifying agent 0.08-0.16; Indicated filler 19.17-21.77; Said filler 72.00-75.26. An increase in the average density and the attenuation coefficient of gamma radiation is achieved, as is the decrease in the propensity of the concrete mixture to delamination.
DESCRIPTION OF THE INVENTION
The invention relates to building materials made on the basis of epoxy resin and can be used to protect building structures from the effects of ionizing radiation.
A polymer solution is known (patent 2119899 C 04B 26/14 Especially heavy polymer solution) for protection against gamma rays, including epoxy ED-20, polyethylene polyamine, KO-922 lacquer, mineral filler and alloying additive, with the following content of components,% by weight :
Epoxy resin ED-20 - 3,94 - 4,20
Polyethylene polyamine - 0.79 - 0.84
Lacquer KO-922 - 0.20 - 0.21
Mineral filler - 86.44 - 92.44
Doping additive - 2.31 - 8.64
The closest to the technical essence and the achieved result is a polymer solution (patent 2125975 C 04 V 26/14 Especially heavy polymer solution) for protection against ionizing radiation, containing epoxy ED-20, polyethylene polyamine, lacquer KO-916K and mineral filler, with the following components , Wt.%:
Epoxy resin - 5.20 - 5.21
Polyethylene polyamine - 1.04
Lacquer KO-916K - 0,03 - 0,16
Mineral filler - 93.60 - 93.72
The disadvantages of the known polymer solution are insufficiently high values of the average density and the attenuation coefficient of gamma radiation.
The aim of the invention is to increase the average density and the attenuation coefficient of gamma radiation, and to reduce the propensity of the concrete mixture to delamination.
The stated goal is achieved in that the polymer concrete comprising a binder, a polyethylene polyamine, a modifying additive and a mineral filler contains, as a binder, an ED-16 epoxy resin, a KO-922 lacquer as a binder, as well as an industrial waste with a specific surface area of 200 M 2 / kg and an average density of 5100 kg / m 3, and further as a filler contains a metal shot with a particle diameter of 3-4 mm and an average density of 7000-11000 kg / m3 with the following content of the components, by weight:
Epoxy resin - 4.76 - 5.40
Polyethylene polyamine - 0.71 - 0.81
Modifying additive - 0,08 - 0,16
The excipient is 19.17 to 21.77
The specified filler is 72.00 - 75.26
The following materials were used for the manufacture of polymer concrete: ED-16 dianene epoxy resin (GOST 10587-76), polyethylene polyamine (TU 6-02-594-80), mineral filler with a specific surface area of 200 m 2 / kg, organosilicone varnish KO-922 ( GOST 16508-70) and a metal shot with an average particle diameter of 3-4 mm.
The use of ED-16 high-viscosity epoxy resin as a binder reduces the tendency of the concrete mixture to delaminate.
The introduction into the polymer concrete of a metal shot having an average density of 7000-11000 kg / m 3 , can significantly increase the average density and the attenuation coefficient of gamma radiation.
The use of industry as an mineral filler having an average density of 5100 kg / m 3 allows to further increase the average density of the material, and the introduction of a modifying additive makes it possible to increase the compressive strength.
The technology of preparation of polymer concrete is as follows. A modifying additive and a doped mineral filler are added to the epoxy heated to 50 ° C., after which the mixture is stirred for 5 minutes. Then filler and hardener are added and further mixing of the components takes place within 1-2 minutes. The total time of preparation of polymer concrete is 6-7 minutes.
The compositions of the proposed polymer concrete are given in Table 1, and the properties of articles manufactured on its basis are given in Table 2.
As can be seen from Table 2, the proposed polymer concrete in comparison with the known polymer solution has an increased average density and a higher linear coefficient of attenuation of gamma radiation.
CLAIM
Polymerconcrete for protection against radiation, including a binder, polyethylene polyamine, a modifying additive and a mineral filler, characterized in that as a binder it contains epoxy ED-16 resin, KO-922 varnish as a modifying additive, as a mineral filler, a waste of industry with A specific surface of 200 m 2 / kg and an average density of 5100 kg / m 3 and additionally as a filler - a metal shot with a particle diameter of 3-4 mm and an average density of 7000.. . 11000 kg / m 3 with the following components, wt. %:
Epoxy resin - 4.76-5.40
Polyethylene polyamine - 0.71-0.81
The modifying additive is 0.08-0.16
This filler is 19.17-21.77
The specified filler is 72.00-75.26
print version
Date of publication 18.12.2006гг
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