X-ray and gamma-ray radiation and neutron radiation protective material and preparation method thereof

A radiation protection and γ-ray technology, which is applied in shielding, nuclear engineering, reactors, etc., can solve the problems of no absorption and blocking of neutron radiation, high physical energy consumption, and inconvenient movement, and achieve good protection effect, light weight, and excellent toughness Effect

Inactive Publication Date: 2018-12-07
天津天颐科苑科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The study found that: lead particles have good absorption ability for radiation with energy higher than 88.0keV and between 13.0keV and 40keV, but there is a region with weak particle absorption ability for radiation with energy between 40keV and 88.0keV (ie lead /weak absorption region), and h

Method used

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  • X-ray and gamma-ray radiation and neutron radiation protective material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0023] Example 1: Method for preparing X, γ-ray radiation and neutron radiation protection materials from emulsion polystyrene butadiene rubber

[0024] Step 1: Crushing and sieving

[0025] The lead oxide powder, heavy metal oxide powder (except lead), and erbium oxide powder are processed and sieved (to remove large particles and too small particles) according to their respective particle densities, and set aside;

[0026] The boron carbide powder and barium sulfate powder are processed and sieved (to remove large particles and too small particles) according to their respective particle densities, and set aside;

[0027] Step 2: Modification and mixing

[0028] Take 2 parts of lead oxide powder, 20 parts of heavy metal oxide powder (except lead), and 8 parts of erbium oxide powder, sample and place in a container with toluene, disperse, add excess hexamethylene diisocyanate, stir and heat To boil, after 20 minutes, cool, filter, dry, crush, and mix for 20 minutes at room temperature ...

Example Embodiment

[0035] Example 2: Method for preparing X, γ-ray radiation and neutron radiation protection materials from butadiene rubber

[0036] Step 1: Crushing and sieving

[0037] The lead oxide powder, heavy metal oxide powder (except lead), and erbium oxide powder are processed and sieved (to remove large particles and too small particles) according to their respective particle densities, and set aside;

[0038] The boron carbide powder and barium sulfate powder are processed and sieved (to remove large particles and too small particles) according to their respective particle densities, and set aside;

[0039] Step 2: Modification and mixing

[0040] Take 1.5 parts of lead oxide powder, 24 parts of heavy metal oxide powder (except lead), and 8 parts of erbium oxide powder, sample and place them in a container with absolute ethanol, disperse, add excess methyl methacrylate, stir, Heat to boiling, after 20 minutes, cool, filter, dry, crush, and mix for 20 minutes at room temperature through a mi...

Example Embodiment

[0047] Example 3: Method for preparing X, γ-ray radiation and neutron radiation protection materials from polyethylene

[0048] Step 1: Crushing and sieving

[0049] The lead oxide powder, heavy metal oxide powder (except lead), and erbium oxide powder are processed and sieved (to remove large particles and too small particles) according to their respective particle densities, and set aside;

[0050] The boron carbide powder and barium sulfate powder are processed and sieved (to remove large particles and too small particles) according to their respective particle densities, and set aside;

[0051] Step 2: Modification and mixing

[0052] Take 2 parts of lead oxide powder, 20 parts of heavy metal oxide powder (except lead), and 8 parts of erbium oxide powder, sample and place them in a container filled with distilled water, disperse, add excess polyvinyl alcohol, stir and heat to boiling, After 20 minutes, cool, filter, dry, crush, and mix for 15 minutes at room temperature through a m...

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Abstract

The invention discloses an X-ray and gamma-ray radiation and neutron radiation protective material and a preparation method thereof. The protective material takes synthetic resin as a base material, synthetic resin monomers or organic compounds similar to the monomers are used for modifying a filler, then the modified product is added to the base material, and the dispersion degree of the filler in the base material can be increased. The hardness and toughness are improved by additives, the modified filler (lead oxide powder, boron carbide powder, barium sulfate powder, heavy metal oxide powder (except lead) and erbium oxide powder) subjected to particle size refinement treatment is evenly dispersed in the synthetic resin base material by mixing, open smelting and calendering processes, and the synthetic resin flake material with good protective effect, good toughness and light mass is produced. Detection is performed according to 'GBZ/T 147-2002 determination of attenuation propertiesfor protective materials against X-rays', the material lead equivalent reaches 0.15-0.35 mm Pb (with the thickness of 1 mm and the weight per unit area of 2.0-4.0 kg/m<2>), and other performance datameet the requirements of 'GB16757-2016 X-ray protective clothing standards'.

Description

technical field [0001] The invention relates to a protective material, in particular to a protective material for X, gamma ray radiation and neutron radiation and a preparation method thereof. Background technique [0002] With the rapid development of modern science and technology, various high-energy rays can be used in the fields of industry, agriculture, medicine, oil field logging, geological exploration, petrochemical industry, national defense research, aerospace, construction installation, nuclear energy, shipbuilding, environmental monitoring, and three wastes treatment. (such as X, gamma rays) are more widely used. While bringing huge economic and social benefits to human beings, the harm of high-energy rays to the human body and the damage to the environment are becoming more and more serious. With the continuous deepening of people's understanding and research on the biological effects of radiation, the protection of high-energy rays has attracted people's great...

Claims

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Application Information

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IPC IPC(8): C08L9/06C08L9/00C08L23/06C08L75/04C08K13/06C08K9/04C08K3/22C08K3/38C08K3/30G21F1/10
CPCC08K3/22C08K3/30C08K3/38C08K9/04C08K13/06C08K2003/221C08K2003/2234C08K2003/3045G21F1/103C08L9/06C08L9/00C08L23/00C08L75/04
Inventor 李永明马全亮张立顺刘培勋
Owner 天津天颐科苑科技有限公司
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