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Radiation-proof high-integrity container and preparation method thereof

An integrity and anti-radiation technology, which is applied to other household appliances, household appliances, applications, etc., can solve the problems of lack of radiation shielding, physical health of transporters, and environmental impact of the place where it is placed, achieving good comprehensive shielding effect, light weight, The effect of reducing radiation dose

Inactive Publication Date: 2021-01-12
中广核高新核材科技(苏州)有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, the current cross-linked high-density polyethylene high-integrity containers do not have the function of radiation shielding. After the container is directly filled with waste, the external surface of the container has a very high contact dose rate, which can reach the Sv / h level. The health and environment of the place where it is placed have a great impact

Method used

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  • Radiation-proof high-integrity container and preparation method thereof
  • Radiation-proof high-integrity container and preparation method thereof
  • Radiation-proof high-integrity container and preparation method thereof

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Embodiment 1-5

[0047] The radiation-proof high-integrity container of the present invention has a container wall composed of an outer wall, an intermediate shielding layer and an inner wall. Wherein, the thickness of the outer wall is 5-10mm, the thickness of the middle shielding layer is 25-40mm, and the thickness of the inner wall is 3-8mm. The specific thickness of each layer is shown in Table 2.

[0048] Wherein, the outer wall and the inner wall are made of material A, and the middle shielding layer is made of material B. The formulations of material A and material B of each embodiment are shown in Table 1.

[0049] Meanwhile, Comparative Examples 1-4 are provided. The structure of the radiation-proof high-integrity container in Comparative Examples 1-4 is the same as that in Examples 1-5, and the container wall is composed of an outer wall, a middle layer and an inner wall. Wherein, the thickness of the outer wall is 5-10mm, the thickness of the middle layer is 3-40mm, and the thickn...

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Abstract

The invention relates to a radiation-proof high-integrity container and a preparation method thereof. The radiation-proof high-integrity container comprises an outer wall, a middle shielding layer andan inner wall, the outer wall and the inner wall are made of a material A, and the middle shielding layer is made of a material B, wherein the material A comprises the following components in parts by weight: 100 parts of a first thermoplastic polymer, 0.3-1.2 parts of a first antioxidant, 0.5-3 part of a first cross-linking agent and 1-20 parts of a first additive; and the material B comprises the following components in parts by weight: 100 parts of a second thermoplastic polymer, 0.3-1.2 parts of a second antioxidant, 0.3-2 part of a second cross-linking agent, 2-5 parts of a foaming agent, 60-100 parts of an anti-radiation agent 1-20 parts of a second additive. The material A and the material B in the radiation-proof high-integrity container have good compatibility; and the anti-radiation agent is selected from two or more of tungsten, lead, bismuth, heavy metal salt, heavy metal oxide, rare earth oxide, a compound containing a lithium element and a compound containing a boron element.

Description

technical field [0001] The invention relates to the field of nuclear waste treatment, in particular to a radiation-proof high-integrity container and a preparation method thereof. Background technique [0002] According to the "Radioactive Waste Classification" announcement jointly issued by the Ministry of Environmental Protection, the Ministry of Industry and Information Technology, and the State Administration of Science, Technology and Industry for National Defense, the waste generated during normal operation of nuclear power plants is classified as low- and medium-level radioactive waste. These wastes require effective containment and isolation for centuries and can be disposed of in near-surface disposal facilities with engineered barriers. In order to achieve safe disposal, packaging containers are used as a barrier. The design, processing and manufacturing of packaging containers and product inspection must be carried out in accordance with standards and specificatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/08C08K13/02C08K3/22C08K3/38C08K3/08C08K5/098C08K3/16C08J9/10B29D22/00
CPCC08L23/06C08L23/0815C08L23/0853C08J9/103C08J9/0095C08J9/0066C08J9/0061C08J9/0023B29D22/003C08J2323/06C08J2323/08C08J2203/04C08K13/02C08K2003/0887C08K2003/2258C08K2003/221C08K3/38C08K2003/385C08K3/16C08K5/098
Inventor 雷伟伟成鹏于广益姜朋飞刘天宇费楚然刘峰康正刘夏杰
Owner 中广核高新核材科技(苏州)有限公司
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