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A lead-free lightweight x, gamma, neutron integrated protective material and preparation method thereof

A technology of protective materials and neutrons, applied in the field of radiation protection, can solve problems such as waste of resources, increase in weight of radiation protective clothing, etc., and achieve the effect of improving shielding ability

Active Publication Date: 2022-02-01
NANTONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This will increase the weight of the prepared radiation protective clothing and waste resources

Method used

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  • A lead-free lightweight x, gamma, neutron integrated protective material and preparation method thereof
  • A lead-free lightweight x, gamma, neutron integrated protective material and preparation method thereof
  • A lead-free lightweight x, gamma, neutron integrated protective material and preparation method thereof

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Embodiment 1

[0030] Refer to attached figure 2 , a lead-free lightweight X, γ-ray and neutron protection material consists of three layers, from top to bottom are polyimide film 1, bismuth thin skin layer 2, functional polyurethane rubber resin coating 3; the thickness is 0.3mm. The thickness of polyimide film 1 is 150 μm, which is the base material of X, γ-ray and neutron protection materials; the thickness of bismuth thin skin layer 2 is 50 μm, and the powder is melted and pressed into flakes to form a seamless metal bismuth skin. Extremely reduce the probability of photons passing through the gap, greatly improving the shielding ability of rays; the polyurethane rubber resin coating 3 raw materials are composed of: functional powder, silane coupling agent, dimethylacetamide and polyurethane rubber resin, among which, The functional powder includes nano metal bismuth powder, metal tungsten powder and boron powder. The mass ratio of functional powder to silane coupling agent is 3:1, the...

Embodiment 2

[0044] Refer to attached figure 2 , a lead-free lightweight X, γ-ray and neutron protection material consists of three layers, from top to bottom are polyimide thin 1, bismuth thin skin 2, functional polyurethane rubber resin coating 3; the thickness is 0.5mm. The thickness of the polyimide film 1 is 150 μm, which is the base material of X, γ-ray and neutron protection materials; the thickness of the bismuth thin skin layer 2 is 150 μm, and the powder is melted and pressed into flakes to form a seamless metal bismuth skin. Extremely reduce the probability of photons passing through the gap, greatly improving the shielding ability of rays; the raw materials of polyurethane rubber resin coating are: functional powder, silane coupling agent, dimethylacetamide and polyurethane rubber resin, among which, the functional The powder includes nano metal bismuth powder, metal tungsten powder and boron powder, the mass ratio of functional powder to silane coupling agent is 3:1, the mas...

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Abstract

The invention relates to a lead-free lightweight X, γ-ray and neutron protection material and a preparation method thereof. It consists of three layers, which are respectively polyimide film, bismuth thin skin layer and functional polyurethane rubber resin coating from bottom to top. . Apply nano-metal bismuth powder evenly on the polyesterimide film. After high-temperature hot pressing, the metal bismuth powder melts into a thin bismuth skin layer. Functional powders: nano-metal bismuth powder, metal tungsten powder and boron powder are modified and added to the The polyurethane rubber resin is evenly mixed and sprayed on the surface of the bismuth thin skin layer. After drying, the fabric is rolled and formed by a calender roller to obtain a lead-free light X, γ-ray and neutron protection material. The prepared X, γ-ray and neutron protection materials have greatly improved the protection efficiency due to the flaky bismuth thin skin layer. As a protective clothing material, it is not only high temperature resistant, lead-free and lightweight, but also has a simple preparation process and high production efficiency. It has a good application prospect.

Description

technical field [0001] The application relates to the field of radiation protection, in particular to a lead-free lightweight X, gamma ray and neutron protection material and a preparation method thereof. Background technique [0002] In recent years, with the rapid development of national defense scientific research, radiation medicine and atomic energy industry, the use of various rays has become increasingly widespread. X, gamma rays and neutrons are important ones. X, γ-rays and neutrons can enter the human body and ionize with the cells in the body. The ions produced by the ionization can destroy the genetic material such as protein and nucleic acid in the living cells in the human body, thus leading to the normal metabolic process in the human body. Causes the death of living cells in the body. Long-term exposure to X, γ-rays and neutrons can cause damage to gonads, mammary glands, hematopoietic bone marrow, etc. Excessive doses can even cause cancer, posing a seriou...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J7/04C08J7/06C08J5/18C09D175/04G21F1/10C08L79/08
CPCC08J5/18G21F1/106C08J2379/08C08J2475/04C08J7/0423
Inventor 姚理荣石敏万星辰吴绥菊杨涛潘刚伟徐思峻
Owner NANTONG UNIVERSITY