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A radiation-proof rubber product with element gradient combination and its preparation method

A rubber product and anti-radiation technology, which is applied in the field of radiation protection rubber materials and radiation protection, can solve the problems of reducing the physical and mechanical properties of the finished product, reducing the overall shielding effect, and the content of filling components is not high, so as to achieve good comprehensive protection effect and good physical and chemical properties. Effects of mechanical properties and high practical value

Active Publication Date: 2018-09-07
MATERIAL INST OF CHINA ACADEMY OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to: for the existing radiation protection rubber products, all the fillers are usually mixed together for filling, the content of each filling component is not high, the overall shielding effect is reduced, and the increase of shielding materials will easily lead to the failure of the product preparation process. Subsidence or delamination of fillers in different degrees will also greatly reduce the physical and mechanical properties of the finished product. A radiation-proof rubber product with element gradient combination and its preparation method are provided.

Method used

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  • A radiation-proof rubber product with element gradient combination and its preparation method

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Effect test

Embodiment 1

[0084] (1) Preparation of compound latex for impregnation

[0085] ① At room temperature, mix 100 parts of TVR LATEX rubber latex (by dry weight), 1.5 parts of sulfur, 0.8 parts of zinc oxide, 1.5 parts of accelerator ZDC, 2.0 parts of antioxidant D, 0.3 parts of sodium hydroxide and 5.0 parts of formazan Mix base cellulose evenly, keep warm at 60°C for 30 minutes, and then cool to obtain natural rubber compound latex.

[0086] ② Prepare 150 parts of gadolinium oxide, 185 parts of bismuth iodate and 185 parts of tungsten oxide powder with an average particle size of not more than 30 microns to prepare ammonia aqueous dispersions with a mass fraction of 40%, and the concentration of ammonia gas is 5%.

[0087]③ Under continuous stirring, slowly add the three shielding filler dispersions in step ② into the compound latex in step ① to obtain impregnated composite latexes containing gadolinium oxide, bismuth iodate and tungsten oxide respectively, that is, to obtain gadolinium oxi...

Embodiment 2

[0097] (1) Preparation of composite latex for impregnation

[0098] ① At 25°C, mix 100 parts of anionic water-soluble neoprene latex (model 41F, by dry weight), 5.0 parts of zinc oxide, 1.0 parts of sulfur, 1.0 parts of accelerator TT, 1.5 parts of accelerator NA-22, 2.0 parts 1 part of antioxidant A, 0.2 part of sodium hydroxide, 0.1 part of potassium hydroxide and 5.0 parts of N330 carbon black were uniformly mixed to obtain neoprene compound latex.

[0099] ② Mix 100 parts of TVR LATEX rubber latex (by dry weight), 1.5 parts of sulfur, 2.0 parts of zinc oxide, 3.0 parts of accelerator ZDC+TT (1:1 mixing), 1.5 parts of antioxidant D and 0.1 parts of hydrogen at room temperature Mix sodium oxide evenly, keep warm at 60°C for 30 minutes, and then cool to obtain natural rubber compound latex.

[0100] ③ Uniformly mix 150 parts of bismuth iodate powder, 3 parts of sodium lauryl sulfate and 225 parts of soft water with an average particle size not exceeding 30 microns, and keep ...

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Abstract

The invention discloses an element gradient combined anti-radiation rubber product and a preparation method thereof, and aims to solve the problems that generally, all fillers of a conventional anti-radiation protection rubber product are mixed together and filled, the contents of different filling components are not high, the overall shielding effect can be degraded, if a shielding material is added, filler sedimentation or layering of different degrees can be caused in the product preparation process, and furthermore the physical and mechanical properties of a finished product can be also greatly degraded. The element gradient combined anti-radiation rubber product comprises N layers of single shielding layers compounded in a gradient manner, wherein N is a natural number; N is greater than or equal to 2. By adopting the element gradient combined anti-radiation rubber product disclosed by the invention, a uniform shielding effect on a wide-energy spectrum high-energy ray can be achieved, the shielding rate of gamma and X-rays is higher than 30%, and the product is friendly to human bodies and the environment. The element gradient combined anti-radiation rubber product is reasonable to design, convenient to use, good in anti-radiation effect, high in production efficiency and filler utilization rate, good in comprehensive shielding property, capable of meeting requirements on industrial, large-scale and on-batch production, relatively high in application value, and relatively good in application prospect.

Description

technical field [0001] The invention relates to the field of radiation protection, in particular to the field of radiation protection rubber materials, in particular to an element gradient combination radiation protection rubber product and a preparation method thereof. The rubber product of the invention adopts multi-element combination and gradient lamination structure compounding, can effectively shield gamma and X-rays, and has good application prospect. Background technique [0002] In industries such as radiological medical research, radiosurgery treatment, nuclear material processing, nuclear waste disposal, and radiation production and testing industries, there are high-energy gamma and X-ray radiation, and radiation protection equipment is required to reduce radiation damage to personnel and the environment. pollute. Radiation protection elastomer material is a kind of radiation protection material widely used in the market at present. It is widely used as radiatio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D107/02C09D111/02C09D7/61C08J7/04
CPCC08J7/0427C08J2307/02C08K3/16C08K13/02C09D7/61C09D107/02C09D111/02C08L1/28C08K2003/221C08K2003/2258
Inventor 徐对功余良波帅茂兵廖益传张鹏程樊晶徐立军
Owner MATERIAL INST OF CHINA ACADEMY OF ENG PHYSICS
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