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A kind of radiation protection gradient composite material and its preparation method and application

A composite material and anti-radiation technology, which is applied in the growth of polycrystalline materials, chemical instruments and methods, metal material coating technology, etc., can solve the problems of wide shielding range and small size, achieve good shielding characteristics, and efficiently shield radiation rays Effect

Active Publication Date: 2022-08-05
武汉市莎卡娜尔科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the problems existing in the above-mentioned prior art, the object of the present invention is to provide a radiation-proof gradient composite material and its preparation method and application, which solves the problem that traditional radiation-proof materials cannot be light, non-toxic, small in size, shielding Wide range, long-lasting shielding performance and other issues

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  • A kind of radiation protection gradient composite material and its preparation method and application
  • A kind of radiation protection gradient composite material and its preparation method and application
  • A kind of radiation protection gradient composite material and its preparation method and application

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Effect test

Embodiment 1

[0032] The preparation method of the radiation protection gradient composite material is as follows:

[0033]S1, BECQ powder preparation: in parts by weight, weigh 15 parts of ferric nitrate, 25 parts of silver nitrate, 20 parts of cerium acetate, and 2 parts of polyvinyl alcohol according to the proportion, and mix and obtain a hollow spherical shape through high temperature sintering, jet pulverization, and sieving. powder, then add 25 parts of samarium nitrate in proportion and use chemical vapor deposition method to coat the hollow spherical powder to make BECQ powder with a core-shell structure; the specific process of the chemical vapor deposition method is as follows: In the reaction vessel, the flow rate of hydrogen gas was 120ml / min, the flow rate of argon gas was 180ml / min, and the temperature of the reduction reaction was 900 ° C. After 70min of heat preservation reaction, finally obtained on the surface of the hollow spherical powder. Metal samarium coating;

[00...

Embodiment 2

[0037] The preparation method of the radiation protection gradient composite material is as follows:

[0038] S1, BECQ powder preparation: in parts by weight, weigh 23 parts of ferric sulfate, 23 parts of silver acetate, 28 parts of cerium nitrate, and 3 parts of polyvinyl alcohol according to the proportion, and mix them with high temperature sintering, jet milling, and sieving to obtain a hollow spherical shape. powder, then add 32 parts of samarium nitrate in proportion and use chemical vapor deposition method to coat the hollow spherical powder to make BECQ powder with a core-shell structure; the specific process of the chemical vapor deposition method is as follows: In the reaction vessel, the flow rate of hydrogen gas was 120ml / min, the flow rate of argon gas was 180ml / min, and the temperature of the reduction reaction was 950°C. Metal samarium coating;

[0039] S2, the preparation of the core layer composite crystal: the carbon powder is placed in the molybdenum wire r...

Embodiment 3

[0044] The preparation method of the radiation protection gradient composite material is as follows:

[0045] S1, preparation of BECQ powder: in parts by weight, weigh 30 parts of ferric nitrate, 35 parts of silver acetate, 35 parts of cerium acetate, and 5 parts of polyvinyl alcohol according to the proportion, and mix them with high temperature sintering, jet pulverization, and sieving to obtain a hollow spherical shape. powder, then add 40 parts of samarium nitrate in proportion and use chemical vapor deposition to coat the hollow spherical powder to make BECQ powder with a core-shell structure; the specific process of the chemical vapor deposition method is as follows: The flow rate of hydrogen gas introduced into the reaction vessel is 120ml / min, the flow rate of argon gas introduced is 180ml / min, and the temperature of the reduction reaction is 1000 ° C. After 70min of heat preservation reaction, finally obtained on the surface of the hollow spherical powder Metal samari...

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Abstract

The invention belongs to the technical field of composite materials, and particularly relates to a radiation protection gradient composite material and a preparation method and application thereof. In parts by weight, the radiation protection gradient composite material includes the following components: 30-40 parts of core layer composite crystals, 35-50 parts of BECQ powder, and 20-35 parts of polyethylene glycol. The radiation protection gradient composite material includes an inner layer of BECQ powder and an outer layer of a core layer composite crystal. The radiation protection gradient composite material of the present invention is based on the BECQ powder, and then adds a core layer composite crystal layer, and the main component of the core layer composite crystal layer is MoO 3 Crystal, the crystal has good shielding properties. The outer core layer composite crystal can absorb and attenuate radiation rays, and the inner layer BECQ powder further attenuates and absorbs attenuating radiation rays. The synergistic effect between the two can effectively shield Radiation rays, therefore, have certain application prospects in the field of materials.

Description

technical field [0001] The invention belongs to the technical field of composite materials, and particularly relates to a radiation protection gradient composite material and a preparation method and application thereof. Background technique [0002] Electromagnetic waves are mainly divided into radio waves, microwaves, infrared rays, visible light, ultraviolet rays, X-rays, λ rays, etc. according to the frequency from small to large. No matter what kind of electromagnetic wave it is, while it provides convenience for human beings, it will bring certain harm. The damage of electromagnetic waves to the human body can be divided into two categories, one of which is to force the organism itself to produce a thermal effect, and the inability to release excess heat in time will increase the body temperature. When it exceeds a certain limit, the organism will The internal temperature is too high to be tolerated and is damaged; the other is to disturb the weak inherent magnetic fi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B9/00B32B9/04B32B5/18B32B33/00C30B29/16C23C16/44C23C16/06
CPCB32B5/16B32B9/007B32B9/048B32B5/18B32B33/00C30B29/16C23C16/4417C23C16/06B32B2264/104B32B2307/212
Inventor 何浏任婕
Owner 武汉市莎卡娜尔科技有限公司
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