Composition for the protection of electronic devices from the impact of radiation of the space matter

FIELD: chemistry.

SUBSTANCE: composition for protection from the effects of ionizing radiation is made in the form of layers, each of which is a matrix of radiation-resistant polymeric material with a filler. The filler contains one or more chemical elements or their compounds. As the filler matrix, facing the source of primary radiation, boron compounds were used. The fillers of each successive layer are selected from the condition of increasing the effective atomic number of the chemical element of the filler material. The attenuation coefficient of each layer is 0.2-0.6.

EFFECT: invention allows to increase the coefficient of attenuation and to reduce the weight and size characteristics.

3 tbl

 



 

Same patents:

FIELD: physics, nuclear.

SUBSTANCE: invention relates to production of radar absorbing materials which reduce the level of secondary radiation, provide electromagnetic compatibility of onboard equipment, correction of directional patterns of onboard antenna systems during prolonged operation and exposure to aggressive media. Radar absorbing material contains dielectric binder - foamed polyurethane and electroconductive filler which absorbs electromagnetic radiation. The material also contains a polyurethane based protective coating. The electroconductive filler which absorbs electromagnetic radiation used is carbon fibre taken in amount of 0.0003-0.005 vol. % or carbonised fibre taken in amount of 0.003-0.05 vol. %.

EFFECT: good radio properties, moisture resistance, resistance to aggressive media, longer use with low density of the material.

FIELD: construction.

SUBSTANCE: construction material on the basis of gypsum is produced by addition of water to composition, in which basic material represents combination of hydraulic gypsum and one type or two or more types of dry-hardening calcium carbonate or calcium hydroxide, or is producd by means of mixing emulsions of synthetic resins with it and inorganic filler with high specific weight so that to execute reaction and setting or drying, at the same time composiiton differs by the fact that it includes 100 weight parts of at least one type or two or more types of main materials, selected from the group including calcium sulfate, calcium carbonate, calcium hydroxide, and also emulsions of organic synthetic resins and 50-3000 weight parts of at least one type or two or more types of inorganic fillers, true specidic weight of which makes 3.5-6.0, selected from the group, including barium chloride, zinc oxide, aluminium oxide, titanium oxide, barium oxide, strontium carbonate, barium carbonate and barium sulfate.

EFFECT: protection against radioactive radiation, small weight, convenience in use, safe for human body.

FIELD: radiation shielding means and their manufacturing processes.

SUBSTANCE: proposed radiation shielding mat has mesh 2 made of copper fibers 3 interwoven with carbon fibers 4 and liquid oak moss solution 5 applied to mentioned mesh 2. Mat creates shielding barrier protecting against terrestrial and electromagnetic radiations and ensures deviation of these radiations.

EFFECT: enhanced reliability of protection against terrestrial and electromagnetic radiations.

10 cl, 1 dwg

FIELD: cloths, compounds, and films affording protection against detrimental impacts presenting safety risk (radiation, chemicals, biological agents, fire, missiles).

SUBSTANCE: proposed radiation shielding compound is produced by mixing material opaque to radioactive radiation, such as barium, bismuth, tungsten, or their compounds with powdered polymer or liquid solution, emulsion, or polymer suspension in solvent or water. Liquefied polymeric film of two extruders is preferably combined so that they are interleaved between two sheets of cloth or any other material such as shielding polymer films or canvas used for chemical or biological protection overalls, bulletproof jackets, or fire-resistant overalls.

EFFECT: enhanced effectiveness and economic efficiency of miscellaneous means for protecting against detrimental impacts.

23 cl, 20 dwg

FIELD: roentgen-ray shielding materials.

SUBSTANCE: proposed X-ray shielding coating has sublayer incorporating cured and plasticized epoxy-containing compound and basic elastic X-ray shielding layer also based on epoxy-containing binder; curing agent from group of cold-curing agents; shielding filler in the form of powdered mixture of rare earth element oxides or mixture of rare earth element oxides with antimony oxide (III), or mixture of rare earth element oxides with tungsten or its compounds, proportion of ingredients being as follows, mass percent: binder, 13.3 - 20.8; shielding filler, 78.6 - 86.3; amine curing agent, o.4 - 0.6. In addition, it has solvent which is essentially mixture of acetic esters, aliphatic and aromatic solvents in the amount of 30 - 40 mass percent per every 100 g of basic X-ray shielding material. Shielding filler content of basic polymerized layer ranges between 78.5 and 88.7 mass percent.

EFFECT: enhanced effectiveness of shielding personnel and patients, improved mechanical and adhesive properties of material.

1 cl, 1 tbl, 4 ex

FIELD: manufacture of roentgen-ray shielding materials.

SUBSTANCE: proposed method includes joining of material layers and curing to produce stack of woven and X-ray shielding material layers by mixing ingredients of cold-hardening X-ray shielding composition. X-ray shielding composition incorporates silicone rubber as binder, shielding filler made of oxide of rare-earth elements mixed up with antimony oxide (III), catalyst, polyamine, and modifying agent, proportion of ingredients per every 100 parts by weight of silicone binder being as follows: epoxy-containing hydrocarbon, 5.0 - 15.0; ortho-phthalate and monatomic alcohols, 0.5 - 3.0; rare-earth element oxides, 160 - 180; antimony oxide (III), 200 - 210; catalyst, 6.0 - 8.0; polyamine, 0.6 - 3.0. Prior to producing stack of fabric layers material is impregnated with organic solution of organometallic compound out of group of organic tin salts. X-ray shielding composition is prepared by sequential mixing up of silicone binder with modifying agent, then catalyst and hardener, followed by their mixing with filler to obtain viscous paste, then catalyst and curing agent (polyamine) which are added to viscous paste just prior to applying the latter to finished woven material. Stack obtained is subjected to compression molding and hardening.

EFFECT: facilitated manufacture.

1 cl, 1 tbl, 1 ex

FIELD: shielding against ionizing rays.

SUBSTANCE: proposed material has sublayer in the form of polybutyl titanate solution or solution of heteroorganic compounds and coating layer of material using silicone polymer as matrix. Coating layer also uses powders of heavy metals, their oxides and carbides as inorganic filler, and cross-linking agent based on mixture of orthosilicic acid ether and products of its hydrolysis. In addition, it has process cross-linking agent in the form of amorphous pyrogenetic silicon dioxide, and curing agent in the form of tin diethyl dicaprylate or catalyst in the form of amino silane solution in orthosilicic acid. Coating layer has following proportion of ingredients, mass percent: silicone polymer, 8.2 - 37.1; heavy-metal powders, their oxides and carbides, 60.7 - 92.0; cross-linking agent, 0.2 - 0.5; process cross-linking agent, 0.2 - 0.5.

EFFECT: enhanced physical, mechanical, and shielding properties of material.

1 cl, 1 dwg, 1 tbl

The invention relates to the protection from radiation, and more specifically to a material for protection against radiation, which is intended for use in medicine, at work, at home, as well as to ensure electromagnetic compatibility of radio equipment and devices

The invention relates to the nuclear industry, in particular for the manufacture of radiation-protective containers KT intended for storage and transport of radioactive sources

FIELD: shielding against ionizing rays.

SUBSTANCE: proposed material has sublayer in the form of polybutyl titanate solution or solution of heteroorganic compounds and coating layer of material using silicone polymer as matrix. Coating layer also uses powders of heavy metals, their oxides and carbides as inorganic filler, and cross-linking agent based on mixture of orthosilicic acid ether and products of its hydrolysis. In addition, it has process cross-linking agent in the form of amorphous pyrogenetic silicon dioxide, and curing agent in the form of tin diethyl dicaprylate or catalyst in the form of amino silane solution in orthosilicic acid. Coating layer has following proportion of ingredients, mass percent: silicone polymer, 8.2 - 37.1; heavy-metal powders, their oxides and carbides, 60.7 - 92.0; cross-linking agent, 0.2 - 0.5; process cross-linking agent, 0.2 - 0.5.

EFFECT: enhanced physical, mechanical, and shielding properties of material.

1 cl, 1 dwg, 1 tbl

FIELD: manufacture of roentgen-ray shielding materials.

SUBSTANCE: proposed method includes joining of material layers and curing to produce stack of woven and X-ray shielding material layers by mixing ingredients of cold-hardening X-ray shielding composition. X-ray shielding composition incorporates silicone rubber as binder, shielding filler made of oxide of rare-earth elements mixed up with antimony oxide (III), catalyst, polyamine, and modifying agent, proportion of ingredients per every 100 parts by weight of silicone binder being as follows: epoxy-containing hydrocarbon, 5.0 - 15.0; ortho-phthalate and monatomic alcohols, 0.5 - 3.0; rare-earth element oxides, 160 - 180; antimony oxide (III), 200 - 210; catalyst, 6.0 - 8.0; polyamine, 0.6 - 3.0. Prior to producing stack of fabric layers material is impregnated with organic solution of organometallic compound out of group of organic tin salts. X-ray shielding composition is prepared by sequential mixing up of silicone binder with modifying agent, then catalyst and hardener, followed by their mixing with filler to obtain viscous paste, then catalyst and curing agent (polyamine) which are added to viscous paste just prior to applying the latter to finished woven material. Stack obtained is subjected to compression molding and hardening.

EFFECT: facilitated manufacture.

1 cl, 1 tbl, 1 ex

FIELD: roentgen-ray shielding materials.

SUBSTANCE: proposed X-ray shielding coating has sublayer incorporating cured and plasticized epoxy-containing compound and basic elastic X-ray shielding layer also based on epoxy-containing binder; curing agent from group of cold-curing agents; shielding filler in the form of powdered mixture of rare earth element oxides or mixture of rare earth element oxides with antimony oxide (III), or mixture of rare earth element oxides with tungsten or its compounds, proportion of ingredients being as follows, mass percent: binder, 13.3 - 20.8; shielding filler, 78.6 - 86.3; amine curing agent, o.4 - 0.6. In addition, it has solvent which is essentially mixture of acetic esters, aliphatic and aromatic solvents in the amount of 30 - 40 mass percent per every 100 g of basic X-ray shielding material. Shielding filler content of basic polymerized layer ranges between 78.5 and 88.7 mass percent.

EFFECT: enhanced effectiveness of shielding personnel and patients, improved mechanical and adhesive properties of material.

1 cl, 1 tbl, 4 ex

FIELD: cloths, compounds, and films affording protection against detrimental impacts presenting safety risk (radiation, chemicals, biological agents, fire, missiles).

SUBSTANCE: proposed radiation shielding compound is produced by mixing material opaque to radioactive radiation, such as barium, bismuth, tungsten, or their compounds with powdered polymer or liquid solution, emulsion, or polymer suspension in solvent or water. Liquefied polymeric film of two extruders is preferably combined so that they are interleaved between two sheets of cloth or any other material such as shielding polymer films or canvas used for chemical or biological protection overalls, bulletproof jackets, or fire-resistant overalls.

EFFECT: enhanced effectiveness and economic efficiency of miscellaneous means for protecting against detrimental impacts.

23 cl, 20 dwg

FIELD: radiation shielding means and their manufacturing processes.

SUBSTANCE: proposed radiation shielding mat has mesh 2 made of copper fibers 3 interwoven with carbon fibers 4 and liquid oak moss solution 5 applied to mentioned mesh 2. Mat creates shielding barrier protecting against terrestrial and electromagnetic radiations and ensures deviation of these radiations.

EFFECT: enhanced reliability of protection against terrestrial and electromagnetic radiations.

10 cl, 1 dwg

FIELD: construction.

SUBSTANCE: construction material on the basis of gypsum is produced by addition of water to composition, in which basic material represents combination of hydraulic gypsum and one type or two or more types of dry-hardening calcium carbonate or calcium hydroxide, or is producd by means of mixing emulsions of synthetic resins with it and inorganic filler with high specific weight so that to execute reaction and setting or drying, at the same time composiiton differs by the fact that it includes 100 weight parts of at least one type or two or more types of main materials, selected from the group including calcium sulfate, calcium carbonate, calcium hydroxide, and also emulsions of organic synthetic resins and 50-3000 weight parts of at least one type or two or more types of inorganic fillers, true specidic weight of which makes 3.5-6.0, selected from the group, including barium chloride, zinc oxide, aluminium oxide, titanium oxide, barium oxide, strontium carbonate, barium carbonate and barium sulfate.

EFFECT: protection against radioactive radiation, small weight, convenience in use, safe for human body.

FIELD: physics, nuclear.

SUBSTANCE: invention relates to production of radar absorbing materials which reduce the level of secondary radiation, provide electromagnetic compatibility of onboard equipment, correction of directional patterns of onboard antenna systems during prolonged operation and exposure to aggressive media. Radar absorbing material contains dielectric binder - foamed polyurethane and electroconductive filler which absorbs electromagnetic radiation. The material also contains a polyurethane based protective coating. The electroconductive filler which absorbs electromagnetic radiation used is carbon fibre taken in amount of 0.0003-0.005 vol. % or carbonised fibre taken in amount of 0.003-0.05 vol. %.

EFFECT: good radio properties, moisture resistance, resistance to aggressive media, longer use with low density of the material.

FIELD: instrument making.

SUBSTANCE: invention relates to instrument making. Radiation-protective coating contains a transition metal of the sixth period of the Periodic system of chemical elements, a post-transition metal of the sixth period of the Periodic system of chemical elements and/or a lanthanoid and an absorbent material containing a chemical element with an atomic number less than the said chemical elements. Radiation-protective coating consists of multiple alternating layers from particles of at least one transition metal of the sixth period of the Periodic system of chemical elements, a post-transition metal of the sixth period of the Periodic system of chemical elements and/or a lanthanide and from the said absorbent material.

EFFECT: invention allows to ensure optimal protection of hardware components from natural ionizing radiations from the space environment.

6 cl, 1 dwg

FIELD: chemistry.

SUBSTANCE: composition for protection from the effects of ionizing radiation is made in the form of layers, each of which is a matrix of radiation-resistant polymeric material with a filler. The filler contains one or more chemical elements or their compounds. As the filler matrix, facing the source of primary radiation, boron compounds were used. The fillers of each successive layer are selected from the condition of increasing the effective atomic number of the chemical element of the filler material. The attenuation coefficient of each layer is 0.2-0.6.

EFFECT: invention allows to increase the coefficient of attenuation and to reduce the weight and size characteristics.

3 tbl

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