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High-temperature resisting shielding material with neutron shielding effect

A shielding material and shielding effect technology, applied in the field of nuclear radiation shielding protection, can solve the problems of poor anti-radiation effect, high temperature resistance, decomposition, etc., and achieve broad economic benefits, good social benefits, and good shielding performance

Inactive Publication Date: 2013-07-03
NO 719 RES INST CHINA SHIPBUILDING IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Water contains a lot of hydrogen, which is a very good neutron weakening body, but water will decompose when exposed to high radiation, and the use of water as a shielding layer has a great impact on the overall mechanical properties of the shielding body
Polyethylene is currently a widely used neutron shielding material. It has high hydrogen content and will not be activated. However, it is not resistant to high temperature and softens at 110°C. It has poor anti-radiation effect, which limits its use in many environments.
[0004] Traditional and single shielding materials can no longer meet the needs of modern protection

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A high temperature resistant shielding material with neutron shielding effect in this embodiment is composed of the following components:

[0018] Epoxy resin: 40 parts

[0019] Polyamide resin: 50 parts

[0020] Gadolinium trioxide: 5 parts

[0021] Titanium dioxide: 5 parts

[0022] The epoxy resin is selected from bisphenol A type epoxy resin, and the modified particles are selected from nano titanium dioxide.

Embodiment 2

[0024] A high temperature resistant shielding material with neutron shielding effect in this embodiment is composed of the following components:

[0025] Phenolic resin: 50 parts

[0026] m-phenylenediamine: 40 parts

[0027] Gadolinium trioxide: 6 parts

[0028] Titanium dioxide: 4 parts

[0029] The above-mentioned modified particles are selected from nano-titanium dioxide.

Embodiment 3

[0031] A high temperature resistant shielding material with neutron shielding effect in this embodiment is composed of the following components:

[0032] Polysulfone resin: 45 parts

[0033] Diaminodiphenylsulfone: 45 parts

[0034] Boron carbide: 9 parts

[0035] Titanium dioxide: 1 part

[0036] The above-mentioned modified particles are selected from nano-titanium dioxide.

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PUM

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Abstract

The invention relates to the field of nuclear radiation screening and protecting, and particularly relates to a high-temperature resisting shielding material with a neutron shielding effect, which is used for screening and protection of neutron radioactive sources such as isotopic neutron source, nuclear reactors, accelerators and the like. The material comprises the following components parts by weight: 40 to 50 parts of basis material, 40 to 50 parts of curing agent, 5 to 10 parts of wild phase particles, and 1 to 5 parts of modified particles. The material has a strong irradiation resisting performance, has a strong mechanical property, is used for screening and protecting to neutron radiation, and can bear the high temperature which is more than 200 DEG C.

Description

technical field [0001] The invention relates to the field of nuclear radiation shielding protection, in particular to a high-temperature-resistant shielding material with neutron shielding effect, which is used for shielding protection of various neutron radiation sources such as isotope neutron sources, nuclear reactors, and accelerators. Background technique [0002] With the development and application of nuclear energy technology, the resulting radiation safety and protection issues are becoming more and more important. For example, isotope neutron sources, nuclear reactors, and accelerators will produce nuclear radiation during operation, especially neutron radiation, which has strong penetrating power and poses a huge threat to personnel and equipment. [0003] Traditional neutron shielding materials include concrete, water, polyethylene, etc. Concrete is a mixture of various elements, and it has good shielding effect and structural performance on neutrons and gamma ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08L61/06C08L81/06C08K3/22C08K3/38
Inventor 李晓玲王益元陈艳聂凌霄蔡涛梁云郭智荣
Owner NO 719 RES INST CHINA SHIPBUILDING IND
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