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Gamma radiation protective clothing preparing method

A technology of gamma radiation and protective clothing, which is applied in the field of preparation of gamma radiation protective clothing, can solve the problems that the safety, softness and comfort cannot reach radiation protective clothing, cannot achieve effective radiation protection, and the content of shielding substances is low. Achieve the effect of improving compatibility and mixing uniformity, improving production conditions and low cost

Active Publication Date: 2015-09-09
陕西核安安全设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Researchers in the former Soviet Union used viscose fiber fabrics as objects to make protective clothing by grafting polyacrylonitrile and treating the modified fabric with lead acetate solution. The protective clothing has good shielding effect, but the process is complicated and the preparation is difficult.
Researchers in Japan and Austria respectively added barium sulfate to viscose fibers to make anti-radiation fibers, and the fabrics processed with the fibers were laminated or hot-pressed after adding adhesives containing shielding agents to the fabrics. Pressed fabric, due to the limitation of adsorption capacity, the content of shielding substances is low, resulting in a decrease in shielding rate
Therefore, the existing radiation protective clothing materials cannot achieve effective protection against radiation, and the safety, softness and comfort cannot meet the requirements of radiation protective clothing.

Method used

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Examples

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example 1

[0023] Using lead tungstate (PbWO4) as the radiation protection powder, the micro-nano-level modified filler was prepared by ball milling, and the EPDM rubber was used as the polymer matrix, and the powder and rubber were well compounded by mixing; secondly , using resorcinol, formaldehyde and latex three-component caustic alkali emulsion as a binder to impregnate the fiber fabric; finally, the rubber-fiber fabric is obtained by calendering, and then vulcanized to make protective rubber clothing. The specific steps are as follows:

[0024] Add 0.025g of silane coupling agent KH570 to the mixed solution of 10ml of distilled water and 13ml of absolute ethanol, stir for 30 minutes to fully hydrolyze KH570, then put the mixed liquid, 10g of lead tungstate powder, and 100g of zirconia beads in tetrafluoroethylene In an ethylene ball mill jar, ball mill at a speed of 300r / min for 8 hours to obtain the lead tungstate viscous liquid modified by KH570. The liquid and zirconium beads a...

example 2

[0036] Using lead oxide (Pb3O4) and bismuth oxide (Bi2O3) as radiation protection powder, it is modified by ball milling by adding modifier cetyltrimethylammonium bromide (CTAB), and after being filtered and dried, it is mixed with silicone rubber at 75 Mix evenly at ℃; secondly, use G-988 silicone adhesive to coat the non-woven fabric three times to increase the bonding strength; finally, obtain the silicone rubber-non-woven fabric by calendering, and vulcanize at room temperature Silicone rubber protective clothing. The specific steps are as follows:

[0037]Add 0.02g of cetyltrimethylammonium bromide to a mixed solution containing 10ml of distilled water and 13ml of absolute ethanol, then put the mixed liquid, 10g of lead oxide powder, and 100g of zirconia beads into a tetrafluoroethylene ball mill jar , and ball milled at 500r / min for 16 hours, filtered, centrifuged, and vacuum-dried at 80°C to obtain lead oxide powder with an average particle size of 0.1 μm to 1 μm. In ...

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Abstract

The invention discloses a gamma radiation protective clothing preparing method. Micro-nano grade Gamma radiation protective clothing functioning powder prepared via ball milling is added to a rubber base body for mixing; then fabrics immersed into adhesives is flattened and stuck to glue; Gamma radiation protective fabrics are achieved via vulcanization formation; and at last the Gamma radiation protective clothing is prepared. The Gamma radiation protective clothing is soft, comfortable to wear and has high screening factor; the preparation technology is simple; and high production rate and low machining cost can be achieved.

Description

technical field [0001] The invention belongs to the field of radiation protection materials, in particular to a preparation method of gamma radiation protection clothing. Background technique [0002] With the development of national defense scientific research, radiation medicine and atomic energy industry, the use of various rays (such as neutrons, gamma rays and other charged particles and high-energy rays) has become increasingly widespread, causing great harm to people's health and life safety. It is recognized as the fourth largest public hazard after air pollution, water pollution and noise pollution. Gamma ray is a strong electromagnetic wave with a much shorter wavelength than X-rays. It has extremely high energy and extremely small wavelength, making it extremely penetrating, but it can be detected by elements with high atomic numbers such as lead and uranium. Nuclei stopped. When the human body is irradiated by γ-rays, the γ-rays can enter the interior of the hu...

Claims

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Application Information

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IPC IPC(8): G21F3/02G21F1/10B32B37/10B32B37/12C08L7/00C08L9/06C08L11/00C08L23/16C08L9/02C08L15/02C08L83/04C08K13/06C08K9/06C08K9/04C08K3/22C08K3/04C08K5/09C08K5/3492C08K5/14B29C35/02
CPCB32B37/10B32B37/12C08K3/22C08K5/09C08K5/14C08K5/18C08K5/3492C08K9/04C08K13/06C08L23/16C08L83/04C08L2201/08C08L2205/03G21F1/10G21F3/02C08L61/06C08L91/06C08K9/06C08K3/24C08K2003/2244C08K2003/2241
Inventor 杨文彬黄文唐小红周元林
Owner 陕西核安安全设备有限公司
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