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Flexible shielding material with composite shielding effect

A shielding material and composite shielding technology, applied in the field of nuclear radiation protection, can solve the problems of soft pure lead, inapplicability to composite shielding fields, and high construction requirements, and achieve light weight, good composite shielding performance, good toughness and structural adaptability Effect

Inactive Publication Date: 2019-04-16
NO 719 RES INST CHINA SHIPBUILDING IND
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, pure lead can only shield a single gamma radiation field, and cannot be applied to the compound shielding field of gamma and neutrons; pure lead has limited its scope in engineering applications due to its soft quality, low temperature resistance and bulky volume. , it cannot be applied in areas with particularly complex structures on the nuclear power site; at the same time, it is difficult for pure lead to work in difficult-to-construction areas, and the construction requirements are very high

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  • Flexible shielding material with composite shielding effect
  • Flexible shielding material with composite shielding effect
  • Flexible shielding material with composite shielding effect

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with specific embodiments.

[0016] figure 1 , figure 2 It is an application example of flexible shielding materials in nuclear power pipelines.

[0017] In this embodiment, black styrene-butadiene lead rubber and yellow chloroprene rubber are prepared separately earlier, and the density of said styrene-butadiene lead rubber is 4.31g / cm 3 , by the mass ratio of each component is 20 parts of YW-2 styrene-butadiene rubber material, 79.8 parts of lead, 0.2 part of deodorant, lead powder is evenly dispersed in the rubber matrix with mixing and vulcanization process; the neoprene rubber The density is 1.40g / cm 3 , according to the mass ratio of each component, it is 83 parts of 1211 neoprene rubber material, 7 parts of crosslinking agent, 2 parts of anti-aging agent, and 8 parts of coloring agent. The physical and chemical properties of the rubber material are improved by processing aids through the ban...

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Abstract

The invention relates to the technical field of nuclear radiation protection and provides a flexible shielding material with a composite shielding effect. The flexible shielding material is formed bybonding a shielding main body made of butylbenzene lead rubber with skin made of chloroprene rubber, has good composite shielding performance, is lightweight and excellent in toughness and structuraladaptability, and can be widely applied to complex areas unavailable for construction such as nuclear power field pipelines and valves, wherein the density of the material is lower than that of pure lead.

Description

technical field [0001] The invention relates to the technical field of nuclear radiation protection, in particular to a flexible shielding material with composite shielding effect, which is used for radiation shielding of nuclear power plants or other nuclear facilities. Background technique [0002] Pure lead, density 11.4g / cm 3 , due to good attenuation of gamma, and has the advantages of acid corrosion resistance, easy processing and low price, it is the shielding material that was first used in radiation protection and has been used until now. [0003] However, pure lead can only shield a single gamma radiation field, and cannot be applied to the compound shielding field of gamma and neutrons; pure lead has limited its scope in engineering applications due to its soft quality, low temperature resistance and bulky volume. , it cannot be applied in areas with complex nuclear power site structures; at the same time, it is difficult for pure lead to work in difficult-to-con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G21F1/10G21F1/12
CPCG21F1/106G21F1/12
Inventor 吴荣俊余明聂凌霄李晓玲左亮周郭智荣刘单徐晓辉
Owner NO 719 RES INST CHINA SHIPBUILDING IND