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Radioactive pollution control and removal material and preparation method thereof

A technology of film-forming emulsion and hollow glass microspheres, applied in coatings, conjugated diene coatings, etc., can solve problems such as technical limitations, lead toxicity, and large radiation doses for chemical defense personnel, and achieve shielding and isolation of radioactivity ray effect

Active Publication Date: 2020-04-14
中国人民解放军军事科学院国防工程研究院工程防护研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the method of introducing lead into pollution removal materials through chemical reactions has the following technical limitations: First, the polymer in the basic formula of pollution removal materials must be fully compatible with the shielding functional components, otherwise the shielding functional elements cannot be introduced through chemical reactions, thus The range of selection of acrylate polymers in the removal material and the film-forming performance of the material are limited; the second is that the introduced shielding functional element is lead, which is toxic and has a weak absorption area for rays with energy between 40 and 88keV
[0005] Therefore, it can be seen that the radioactive pollution control and removal materials of the acrylic emulsion system commonly used at present either do not have radiation shielding ability, and the radiation dose of radioactive pollution to chemical defense personnel during the decontamination operation is relatively large, making it suitable for the application of radiation pollution removal Subject to certain restrictions; or even with some radiation shielding capabilities, but there are technical limitations
That is, there are technical defects in the radioactive pollution control and removal materials of the existing acrylic emulsion system, which need to be improved

Method used

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  • Radioactive pollution control and removal material and preparation method thereof
  • Radioactive pollution control and removal material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A radioactive pollution control and removal material is composed of the following components in parts by weight: 60 parts of composite film-forming emulsion, 15 parts of coated hollow glass microspheres, and 0.5 parts of additives.

[0025] The composite film-forming emulsion is formed by mixing acrylate polymer, vinegar-acrylic emulsion, and styrene-butadiene emulsion in a mass ratio of 60:20:10.

[0026] The coated hollow glass microspheres are plated with a layer of 500-5000nm thick barium or tungsten on the outer surface of the hollow glass microspheres by electroless plating, electroplating or magnetron sputtering, and the diameter of the hollow glass microspheres is 100 ~200 μm.

[0027] The additives are non-ionic surfactant and viscosity modifier, wherein the non-ionic surfactant is polyoxyethylene lauryl ether, and the viscosity modifier is alkali-swellable thickener AES-60.

[0028] In order to further improve the radiation shielding ability of the present in...

Embodiment 2

[0031] A radioactive pollution control and removal material, which consists of the following components in parts by weight: 70 parts of composite film-forming emulsion, 23 parts of coated hollow glass microspheres, and 3 parts of additives.

[0032] The composite film-forming emulsion is formed by mixing acrylate polymer, vinegar-acrylic emulsion, and styrene-butadiene emulsion in a mass ratio of 60:30:15.

[0033] The coated hollow glass microspheres are plated with a layer of 500-5000nm thick barium or tungsten on the outer surface of the hollow glass microspheres by electroless plating, electroplating or magnetron sputtering, and the diameter of the hollow glass microspheres is 100 ~200 μm.

[0034] The additives are non-ionic surfactant and viscosity modifier, wherein the non-ionic surfactant is polyoxyethylene lauryl ether, and the viscosity modifier is alkali-swellable thickener AES-60.

[0035] In order to further improve the radiation shielding ability of the present ...

Embodiment 3

[0037] A radioactive pollution control and removal material, which consists of the following components in parts by weight: 80 parts of composite film-forming emulsion, 30 parts of coated hollow glass microspheres, and 5 parts of additives.

[0038] The composite film-forming emulsion is formed by mixing acrylate polymer, vinegar-acrylic emulsion, and styrene-butadiene emulsion in a mass ratio of 60:40:20.

[0039] The coated hollow glass microspheres are plated with a layer of 500-5000nm thick barium or tungsten on the outer surface of the hollow glass microspheres by electroless plating, electroplating or magnetron sputtering, and the diameter of the hollow glass microspheres is 100 ~200 μm.

[0040] The additives are non-ionic surfactant and viscosity modifier, wherein the non-ionic surfactant is polyoxyethylene lauryl ether, and the viscosity modifier is alkali-swellable thickener AES-60.

[0041] In order to further improve the radiation shielding ability of the present ...

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Abstract

The invention discloses a radioactive contamination control and removal material, which comprises the following components in parts by weight: 60-80 parts of composite film-forming emulsion, 15-30 parts of coated hollow glass micro-beads and 0.5-5 parts of an additive. According to the invention, the composite film-forming emulsion and the coated hollow glass micro-beads are adopted, and the outercoating film of the coated hollow glass micro-beads has radiation shielding performance, so that the material has radiation shielding capability so as to improve the radiation protection effect in adecontamination process.

Description

technical field [0001] The invention belongs to the technical field of engineering decontamination, and in particular relates to a radioactive pollution control and removal material and a preparation method thereof. Background technique [0002] As we all know, in the world, nuclear accidents such as leakage accidents in nuclear facilities such as nuclear power plants and experimental reactors, and nuclear and radiation terrorist incidents are inevitable. Once the radioactive substances produced are diffused, they will cause serious harm to the environment and public safety. [0003] At present, the common way of dealing with large-scale radioactive contamination is to collect the pollutants settled on the contaminated surface and transfer them to safe areas for burial or storage. The peeling-type pressing decontamination technology is a common technology for removing radioactive pollutants. It has the advantages of simple operation, easy control, only a single solid waste, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/04C09D131/04C09D109/06C09D7/62C09D7/65
CPCC09D133/04C09D7/62C09D7/70C09D7/65C08K2201/011C08K2201/003C08L2205/035C08L31/04C08L9/06C08L71/02C08K13/06C08K9/02C08K7/28
Inventor 王静刘国权郑力李坚赵莉陈阔
Owner 中国人民解放军军事科学院国防工程研究院工程防护研究所
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