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A kind of anti-nuclear radiation rare earth composite material and preparation method thereof

A composite material and anti-nuclear radiation technology, applied in the field of nuclear radiation protection, can solve the problems of poor aging resistance, difficulty in combining neutron radiation shielding function and structural integration, affecting material strength, etc., and achieve corrosion resistance density distribution , the effect of good nuclear radiation shielding performance

Inactive Publication Date: 2019-03-12
SHANGHAI NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

First of all, the foamed neutron-absorbing material made by the foaming process contains a large number of holes in the internal structure, which will affect the strength of the material and cannot effectively block fast neutrons; secondly, the selected polyurethane, methacrylic resin, etc. The aging resistance of the foam material itself is not strong, especially in terms of anti-neutron radiation performance, it is difficult to combine the neutron radiation shielding function and structural integration of the material

Method used

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  • A kind of anti-nuclear radiation rare earth composite material and preparation method thereof
  • A kind of anti-nuclear radiation rare earth composite material and preparation method thereof
  • A kind of anti-nuclear radiation rare earth composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] An anti-nuclear radiation rare earth composite material is composed of the following components by weight percentage:

[0027]

[0028] Weigh the inorganic filler, rare earth compound and admixture respectively according to mass fraction, mix uniformly, then add non-ionic polyethylene emulsion, and stir uniformly.

Embodiment 2

[0030] The composite material of the present embodiment is made by the component of following weight percent content:

[0031]

[0032] Weigh the inorganic filler, rare earth compound and admixture respectively according to the mass fraction, mix uniformly, then add nonionic polycarbonate emulsion, and stir uniformly. The anti-nuclear radiation rare earth polymer composite material is obtained.

[0033] Table 1 shows the neutron ray shielding performance of the rare earth nuclear radiation protection polymer composite material prepared in Example 1 and ordinary PE (no rare earth).

[0034] Table 1

[0035]

Embodiment 3

[0037] An anti-nuclear radiation rare earth composite material is composed of the following components by weight percentage:

[0038]

[0039] Weigh the inorganic filler, rare earth compound and admixture respectively according to the mass fraction, mix uniformly, then add the nonionic emulsion of high-density polyethylene according to the proportion, stir uniformly, construct, and dry to obtain the rare earth polymer composite material for nuclear radiation protection .

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Abstract

The invention relates to a nuclear radiation prevention rare earth composite material which is prepared from, by weight, 20-80% of an inorganic material, 10-60% of a rare earth compound, 5-50% of macromolecule resin and 0.9-2.0% of an additive. Compared with the prior art, the nuclear radiation prevention rare earth composite material has a good mechanical property, waterproof performance and construction performance, is low in weight, free of toxin and convenient to process and has a good shielding effect on gamma rays and neutron rays.

Description

technical field [0001] The invention belongs to the technical field of nuclear radiation protection, and in particular relates to a nuclear shielding rare earth polymer composite material and a preparation method thereof. Background technique [0002] With the rapid development of nuclear technology-related industries, high-energy radiation rays have been widely used in many fields such as industry, medical treatment, and scientific research, and the resulting radiation safety and protection issues are becoming more and more important. The main protection objects are X-rays, γ-rays and neutrons, especially γ-rays and neutrons, which have strong penetrating power, and improper protection will bring a huge threat to personnel and equipment. Heavy elements or elements with large absorption cross-sections can be used to decelerate fast neutrons and absorb secondary gamma rays; high content of hydrogen atoms can block medium-speed neutrons without producing secondary effects of g...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/06C08L69/00C08L23/12C08L25/06C08L67/00C08K13/02C08K3/36C08K3/34C08K3/38C08K3/22C08K3/30C08K5/54C08K5/09C08K5/12G21F1/00G21F1/10
CPCC08K3/22C08K3/30C08K3/34C08K3/36C08K3/38C08K5/09C08K5/12C08K5/54C08K13/02C08K2003/221C08K2003/2265C08K2003/3045C08L2201/08C08L2207/062G21F1/00G21F1/10C08L23/06C08L69/00C08L23/12C08L25/06C08L67/00
Inventor 余锡宾
Owner SHANGHAI NORMAL UNIVERSITY
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