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Anti-thermal neutron radiation shielding material and preparation method thereof

A radiation shielding and thermal neutron technology, which is used in shielding, reactors, nuclear engineering, etc., and can solve the problems of large volume, invariability and high rigidity of the materials used.

Active Publication Date: 2012-10-03
北京富迪创业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are many studies on polymer shielding materials: anti-radiation plexiglass, polyethylene or polypropylene anti-neutron and anti-γ-ray shielding materials, lead-containing rubber and other polymer materials for anti-ionizing radiation, However, most of the above-mentioned materials are relatively rigid, and the volume of the materials used is large, and the flexibility is not good, so they cannot be changed arbitrarily with the size of the environment.

Method used

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  • Anti-thermal neutron radiation shielding material and preparation method thereof
  • Anti-thermal neutron radiation shielding material and preparation method thereof
  • Anti-thermal neutron radiation shielding material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Formulation of thermal neutron radiation shielding material:

[0026]

[0027]

[0028] The measurement units of the above components are in weight fraction.

[0029] The preparation method steps of thermal neutron radiation shielding material are as follows:

[0030] a. Rubber substrate mixing:

[0031] Complete the mixing of raw materials (Banbury) in the internal mixer. When the internal mixer is at 70°C, start to put in the rubber matrix for mastication. The mastication of rubber is conducive to subsequent mixing. The rubber matrix mastication time is 5 minute.

[0032] Adding order: After the rubber matrix is ​​masticated, add stearic acid, zinc oxide, solid coumarone, paraffin, polyethylene glycol, antioxidant D, reinforcing carbon black, and operating oil in sequence. Part of the operating oil can be mixed with carbon black and then added to the internal mixer; part of the operating oil can be mixed with boron carbide and then added to the internal mixer...

Embodiment 2

[0044] Formulation of thermal neutron radiation shielding material

[0045]

[0046]

[0047] The measurement units of the above components are in weight fraction. And preparation method step is with embodiment 1.

[0048] The test data for thermal neutron radiation shielding materials are as follows:

[0049] Mechanical properties of materials:

[0050]

[0051] Thermal neutron radiation shielding material shielding performance:

[0052]

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Abstract

The invention discloses an anti-thermal neutron radiation shielding material and a preparation method thereof. The anti-thermal neutron radiation shielding material is prepared by the following steps of: using rubber with radiation resistance as a matrix material; adding an anti-radiation additive which can shield thermal neutrons, a reinforced carbon black assistant and a processing assistant; and performing technical processes of a, mixing the rubber matrix, b, rolling and pre-forming the rubber matrix, c, vulcanizing and forming the rubber matrix, and the like to prepare the material. The anti-thermal neutron radiation shielding material provided by the invention has the shielding performance for the thermal neutrons, further, is good in flexibility, can be attached to the appearances of devices or apparatuses, and can be applied to surface protection of detectors such as a neutron diffraction spectrometer and the like and neutron protection of special curves.

Description

Technical field [0001] The invention relates to the technical field of preparation of nuclear radiation shielding materials, in particular to a thermal neutron radiation shielding material and a preparation method thereof. Background technique [0002] In recent years, with the rapid development of industries such as nuclear power, nuclear-powered ships, radiation processing, non-destructive testing, and radiation therapy, radiation technology has been widely used in many fields such as industry, medical treatment, and scientific research. The harm of radiation to the human body and the environment Destruction is also gradually recognized by human beings. People who are often exposed to radioactive rays will experience symptoms such as skin burns, hair loss, eye pain, leukopenia, and even myeloma. In order to prevent or reduce the harm caused by radioactive rays to people, various protective measures must be taken. The protection of radioactive rays involves protective shie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G21F1/10
Inventor 康兴川郭振涛矫阳李淑凤李铁军赵建中李建君张龙张桂敏侯欣鹏陈研
Owner 北京富迪创业科技有限公司
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