CN208622446U - Neutron-gamma mixing field flexible compound safeguard structure - Google Patents
Neutron-gamma mixing field flexible compound safeguard structure Download PDFInfo
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- CN208622446U CN208622446U CN201821423859.3U CN201821423859U CN208622446U CN 208622446 U CN208622446 U CN 208622446U CN 201821423859 U CN201821423859 U CN 201821423859U CN 208622446 U CN208622446 U CN 208622446U
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- silicon rubber
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Abstract
The utility model discloses a kind of neutron-gamma mixing field flexible compound safeguard structures, comprising: at least one layer of silicon rubber base flexibility neutron shield layer；At least one layer of silicon rubber base flexibility gamma shielding layer, it is seamless to be attached on silicon rubber base flexibility neutron shield layer.Contain boron carbide in the silicon rubber base flexibility neutron shield layer；Contain tungsten powder particles in the silicon rubber base flexibility gamma shielding layer, the silicon rubber base flexibility neutron shield layer with a thickness of 2~5 millimeters, the thickness ratio of the silicon rubber base flexibility neutron shield layer and silicon rubber base flexibility gamma shielding layer is 1~2:1~2.By will have, the silastic-layer of gamma shielding function is seamless to be attached on the silastic-layer with neutron shield function the utility model, thus both ensured that material had the function of to shield the radiation protection of neutron and gamma ray, mechanics quality stable between keeping flexibility excellent and batch simultaneously, with good flexibility, and can 180 degree bending and arbitrarily cut.
Description
Technical field
The utility model relates to radiation protection material technical field more particularly to a kind of neutron-gamma mixing field are flexible
Composite protection structure.
Background technique
It is related in nuclear facilities operational process in reactor, nuclear power station, nuclear armament etc., various rays can be supervened, thus shape
At a variety of rays and the mixed radiation field deposited, wherein gamma-rays and neutron through horizontal all very strong, weak location may be penetrated
Certain potential hazard is caused to ambient enviroment.It is one that its radiation shield/protection, which is studied, to reduce its harm to the maximum extent
Particularly significant and urgent work.
In recent years, miniature to complex shape in actual scene to relate to the outer screen of nuclear facilities/part of appliance in radiation protection
It covers, the system of material is taken in the reinforcement protection of line conduit outer wall, the surface cladding of position particular device or component, radiation protection
It is standby, require that material has flexible and the special additional properties such as is easy to bend and cut.Both at home and abroad for flexible shielding material
Research work is to carry out for single ray, such as by lead powder or boron carbide powder disperse in butadiene-styrene rubber (Fu Ming, Wang Yong, Lee
Fragrant .SBR rubber-base flexible shielding material Study on Preparation Nuclear Power Engineering, 2013,34 (6): 165-168) etc., but multiple
Closing protection aspect is mainly that (Luo Xiaowei, Guo Chaoxuan, Guo Jun wait a kind of γ of-neutron mixing field composite protection structure to rigid structure
.CN,202957049U[P].2013-5-29.)；This is mainly due to once will be with neutron and gamma shielding/absorption function
After filler is mixed into simultaneously, the mechanical property of material, which will sharply decline, even loses flexible characteristic.How effectively shielding neutron and
While gamma ray, and protective materials can be made to keep characteristic that is flexible and being easy to bend and cut, be that this field is urgently to be resolved
Technical problem.
Utility model content
One purpose of the utility model is to solve at least the above problems and/or defect, and provide and at least will be described later
The advantages of.
In order to realize these purposes and other advantages according to the present utility model, a kind of neutron-gamma mixing field is provided
With flexible compound safeguard structure characterized by comprising
At least one layer of silicon rubber base flexibility neutron shield layer；
At least one layer of silicon rubber base flexibility gamma shielding layer, it is seamless to be attached on silicon rubber base flexibility neutron shield layer.
Preferably, contain boron carbide in the silicon rubber base flexibility neutron shield layer；The silicon rubber base flexibility gamma
Contain tungsten powder particles in shielded layer.
Preferably, the silicon rubber base flexibility neutron shield layer with a thickness of 2~5 millimeters.
Preferably, the thickness ratio of the silicon rubber base flexibility neutron shield layer and silicon rubber base flexibility gamma shielding layer is
1~2:1~2.
Preferably, the mass fraction containing boron carbide is 25~40% in the silicon rubber base flexibility neutron shield layer.
Preferably, in the silicon rubber base flexibility gamma shielding layer mass fraction containing tungsten powder particles be 50~
60%.
Preferably, the silicon rubber base flexibility neutron shield layer and silicon rubber base flexibility gamma shielding layer are disposed as one
Layer.
Preferably, at least two layers of layer of the silicon rubber base flexibility neutron shield, and it is flexible in adjacent silicon rubber base
At least one layer of silicon rubber base flexibility gamma shielding layer is provided between neutron shield layer.
In the utility model, the silicon rubber base flexibility neutron shield layer is passed through by raw-silastic continuously raw material and boron carbide powder
Crosslinked again after mixing to obtain, preparation process is that 100 parts of raw-silastic continuously, 40~80 parts of boron carbide powder is taken (to convert as quality
Number i.e. 25~40%), 10 parts of white carbon black, 5 parts of hydroxy silicon oil, be kneaded 20 minutes at 50 DEG C on a mill, on tablet press machine
It is pressed and molded to be placed in after sheet material60Crosslinking with radiation is carried out in Co gamma radiation field at room temperature, obtains absorbed dose i.e. up to 50kGy；
The silicon rubber base flexibility gamma shielding layer is obtained by raw-silastic continuously raw material and tungsten powder particles are crosslinked again after being kneaded, preparation
Process is to take 100 parts of raw-silastic continuously, 120~180 parts of tungsten powder particles (conversion is mass fraction i.e. 50~60%), white carbon black
10 parts, 10 parts of hydroxy silicon oil are kneaded 30 minutes at 50 DEG C on a mill, after compression molding is sheet material on tablet press machine, are placed in60Crosslinking with radiation is carried out in Co gamma radiation field at room temperature, obtains absorbed dose i.e. up to 50kGy；The raw-silastic continuously raw material is
It is any one in the common commercially available silicon rubber such as methyl vinyl silicone rubber, dimethyl silicone rubber, methyl phenyl vinyl silicone rubber
Kind；The boron carbide powder and tungsten powder particles are submicron order or nanoscale.
The utility model is include at least the following beneficial effects: the utility model passes through in the silicon that will have gamma shielding function
Rubber layer is seamless to be attached on the silastic-layer with neutron shield function, thus has both ensured that material had shielding neutron and gamma
The radiation protection function of ray, while the mechanics quality stable between keeping flexibility excellent and batch, have good flexibility,
And can 180 degree bending and arbitrarily cut.
The further advantage, target and feature of the utility model will be partially reflected by the following instructions, and part will also pass through
Research and practice to the utility model and be understood by the person skilled in the art.
Detailed description of the invention:
Fig. 1 is the utility model neutron-gamma mixing field flexible compound safeguard structure structural schematic diagram；
Fig. 2 is that neutron-gamma mixing field flexible compound safeguard structure structure of the utility model another kind structure is shown
It is intended to.
Specific embodiment:
The following describes the utility model in further detail with reference to the accompanying drawings, to enable those skilled in the art referring to explanation
Book text can be implemented accordingly.
It should be appreciated that such as " having ", "comprising" and " comprising " term used herein do not allot one or more
The presence or addition of a other elements or combinations thereof.
The utility model provides a kind of neutron-gamma mixing field flexible compound safeguard structure, as shown in Figure 1, comprising:
At least one layer of silicon rubber base flexibility neutron shield layer 1；
At least one layer of silicon rubber base flexibility gamma shielding layer 2, it is seamless to be attached to silicon rubber base flexibility neutron shield layer 1
On.
By will have, the silastic-layer of gamma shielding function is seamless to be attached to neutron screen in the technical scheme
It covers on the silastic-layer of function, thus had both ensured that material has the function of to shield the radiation protection of neutron and gamma ray, protected simultaneously
The mechanics quality stable between flexibility is excellent and batch is held, there is good flexibility, and 180 degree bending and can arbitrarily be cut.
In the technical scheme, due to silicon rubber base flexibility neutron shield layer and silicon rubber base flexibility gamma shielding layer itself have it is viscous
Property, therefore seamless attaching may be implemented in the two.
In the above-mentioned technical solutions, boron carbide 11 is contained in the silicon rubber base flexibility neutron shield layer；The silicon rubber
Contain tungsten powder particles 21 in base flexibility gamma shielding layer.
In the above-mentioned technical solutions, the silicon rubber base flexibility neutron shield layer with a thickness of 2~5 millimeters.Using the thickness
Degree can more preferably realize the radiation protection function of shielding neutron and gamma ray, and flexibility is preferable.
In the above-mentioned technical solutions, the silicon rubber base flexibility neutron shield layer and silicon rubber base flexibility gamma shielding layer
Thickness ratio is 1~2:1~2.The radiation protection function of shielding neutron and gamma ray can be more preferably realized using the thickness proportion
Can, and flexibility is preferable.
In the above-mentioned technical solutions, the mass fraction containing boron carbide is 25 in the silicon rubber base flexibility neutron shield layer
~40%.Using the carbonization boron content of the ratio, the radiation protection function of shielding neutron can be more preferably realized.
In the above-mentioned technical solutions, the mass fraction containing tungsten powder particles is in the silicon rubber base flexibility gamma shielding layer
50~60%.Using the tungsten powder particles content of the ratio, the radiation protection function of shielding gamma ray can be more preferably realized.
In another technical solution, the silicon rubber base flexibility neutron shield layer and silicon rubber base flexibility gamma shielding layer
It is disposed as one layer.Using which, may be implemented the radiation protection function of shielding neutron and gamma ray, and flexibility compared with
It is good.
In another technical solution, as shown in Fig. 2, 1 at least two layers of the silicon rubber base flexibility neutron shield layer, and
At least one layer of silicon rubber base flexibility gamma shielding layer 2 is provided between adjacent silicon rubber base flexibility neutron shield layer 1.Using
Which can more preferably realize the radiation protection function of shielding neutron and gamma ray, and have certain flexibility.
Embodiment 1:
As shown in Figure 1, a kind of neutron-gamma mixing field flexible compound safeguard structure, comprising: the silicon rubber base of bottom is soft
Property neutron shield layer 1；Silicon rubber base flexibility gamma shielding layer 2 is attached to the silicon rubber base flexibility neutron shield of the bottom
The top of layer 1；Boron carbide 11 is scattered in inside the bottom silicon rubber-base flexible neutron shield layer 1；Tungsten powder particles 21 are scattered in
Inside the silicon rubber base flexibility gamma shielding layer 2.
Above-mentioned silicon rubber base flexibility neutron shield layer is with a thickness of 4 millimeters；
The thickness ratio of above-mentioned silicon rubber base flexibility neutron shield layer and silicon rubber base flexibility gamma shielding layer is 1:1；
The partial size of above-mentioned boron carbide is 100 microns, mass fraction 30%；
The partial size of above-mentioned tungsten powder particles is 500 nanometers, mass fraction 50%.
Embodiment 2:
A kind of neutron-gamma mixing field flexible compound safeguard structure, comprising: bottom silicon rubber-base flexible neutron shield layer
1；Silicon rubber base flexibility gamma shielding layer 2, is attached to the top of the bottom silicon rubber-base flexible neutron shield layer 1；Carbonization
Boron 11 is scattered in inside the bottom silicon rubber-base flexible neutron shield layer 1；It is soft that tungsten powder particles 21 are scattered in the silicon rubber base
Inside property gamma shielding layer 2.
Above-mentioned silicon rubber base flexibility neutron shield layer is with a thickness of 2 millimeters；
The thickness ratio of above-mentioned silicon rubber base flexibility neutron shield layer and silicon rubber base flexibility gamma shielding layer is 1:1.5；
The partial size of above-mentioned boron carbide is 500 nanometers, mass fraction 40%.
The partial size of above-mentioned tungsten powder particles is 200 nanometers, mass fraction 50%.
Embodiment 3:
A kind of neutron-gamma mixing field flexible compound safeguard structure, comprising: bottom silicon rubber-base flexible neutron shield layer
1；Silicon rubber base flexibility gamma shielding layer 2, is attached to the top of the bottom silicon rubber-base flexible neutron shield layer 1；Carbonization
Boron 11 is scattered in inside the bottom silicon rubber-base flexible neutron shield layer 1；It is soft that tungsten powder particles 21 are scattered in the silicon rubber base
Inside property gamma shielding layer 2.
Above-mentioned silicon rubber base flexibility neutron shield layer is with a thickness of 5 millimeters；
The thickness ratio of above-mentioned silicon rubber base flexibility neutron shield layer and silicon rubber base flexibility gamma shielding layer is 2:1；
The partial size of above-mentioned boron carbide is 100 microns, mass fraction 25%.
The partial size of above-mentioned tungsten powder particles is 100 microns, mass fraction 60%.
Embodiment 4:
A kind of neutron-gamma mixing field flexible compound safeguard structure, comprising: bottom silicon rubber-base flexible neutron shield layer
1；Silicon rubber base flexibility gamma shielding layer 2, is attached to the top of the bottom silicon rubber-base flexible neutron shield layer 1；Carbonization
Boron 11 is scattered in inside the bottom silicon rubber-base flexible neutron shield layer 1；It is soft that tungsten powder particles 21 are scattered in the silicon rubber base
Inside property gamma shielding layer 2.
Above-mentioned silicon rubber base flexibility neutron shield layer is with a thickness of 4 millimeters；
The thickness ratio of above-mentioned silicon rubber base flexibility neutron shield layer and silicon rubber base flexibility gamma shielding layer is 2:1.5；
The partial size of above-mentioned boron carbide is 100 microns, mass fraction 30%.
The partial size of above-mentioned tungsten powder particles is 200 nanometers, mass fraction 55%.
Number of devices and treatment scale described herein are the explanations for simplifying the utility model.To the utility model
Neutron-application of gamma mixing field flexible compound safeguard structure, modifications and variations be to one skilled in the art
Obviously.
It is not only in the description and the implementation although the embodiments of the present invention have been disclosed as above
Listed utilization, it can be applied to various fields suitable for the present invention completely, for those skilled in the art,
Other modifications may be easily implemented, therefore without departing from the general concept defined in the claims and the equivalent scope, this reality
It is not limited to specific details and legend shown and described herein with novel.
Claims (8)
1. a kind of neutron-gamma mixing field flexible compound safeguard structure characterized by comprising
At least one layer of silicon rubber base flexibility neutron shield layer；
At least one layer of silicon rubber base flexibility gamma shielding layer, it is seamless to be attached on silicon rubber base flexibility neutron shield layer.
2. neutron as described in claim 1-gamma mixing field flexible compound safeguard structure, which is characterized in that the silicon rubber
Contain boron carbide in matrix flexibility neutron shield layer；Contain tungsten powder particles in the silicon rubber base flexibility gamma shielding layer.
3. neutron as described in claim 1-gamma mixing field flexible compound safeguard structure, which is characterized in that the silicon rubber
Matrix flexibility neutron shield layer with a thickness of 2~5 millimeters.
4. neutron as claimed in claim 3-gamma mixing field flexible compound safeguard structure, which is characterized in that the silicon rubber
The thickness ratio of matrix flexibility neutron shield layer and silicon rubber base flexibility gamma shielding layer is 1~2:1~2.
5. neutron as claimed in claim 2-gamma mixing field flexible compound safeguard structure, which is characterized in that the silicon rubber
The mass fraction containing boron carbide is 25~40% in matrix flexibility neutron shield layer.
6. neutron as claimed in claim 2-gamma mixing field flexible compound safeguard structure, which is characterized in that the silicon rubber
The mass fraction containing tungsten powder particles is 50~60% in matrix flexibility gamma shielding layer.
7. neutron as described in claim 1-gamma mixing field flexible compound safeguard structure, which is characterized in that the silicon rubber
Matrix flexibility neutron shield layer and silicon rubber base flexibility gamma shielding layer are disposed as one layer.
8. neutron as described in claim 1-gamma mixing field flexible compound safeguard structure, which is characterized in that the silicon rubber
At least two layers of layer of matrix flexibility neutron shield, and at least one is provided between adjacent silicon rubber base flexibility neutron shield layer
Layer silicon rubber base flexibility gamma shielding layer.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110379530A (en) * | 2019-08-09 | 2019-10-25 | 中国人民大学 | A kind of effective interlayer of biological shielding wall, biological shielding wall and unit |
| CN110867265A (en) * | 2019-11-26 | 2020-03-06 | 山东双鹰医疗器械有限公司 | Flexible neutron radiation protection material and preparation method of protection article |
| CN110983779A (en) * | 2019-10-28 | 2020-04-10 | 西南科技大学 | Preparation method of sheath-core structure fiber for jointly protecting neutrons and gamma rays |
| CN111312422A (en) * | 2020-02-27 | 2020-06-19 | 西安交通大学 | Flexible material with gamma ray radiation shielding function and silicon-based doped nano titanium oxide and preparation method thereof |
| CN113025049A (en) * | 2021-03-31 | 2021-06-25 | 中国核动力研究设计院 | Flexible tungsten-based composite shielding material and preparation method thereof |
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2018
- 2018-08-31 CN CN201821423859.3U patent/CN208622446U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110379530A (en) * | 2019-08-09 | 2019-10-25 | 中国人民大学 | A kind of effective interlayer of biological shielding wall, biological shielding wall and unit |
| CN110983779A (en) * | 2019-10-28 | 2020-04-10 | 西南科技大学 | Preparation method of sheath-core structure fiber for jointly protecting neutrons and gamma rays |
| CN110983779B (en) * | 2019-10-28 | 2022-07-01 | 西南科技大学 | Preparation method of sheath-core structure fiber for jointly protecting neutrons and gamma rays |
| CN110867265A (en) * | 2019-11-26 | 2020-03-06 | 山东双鹰医疗器械有限公司 | Flexible neutron radiation protection material and preparation method of protection article |
| CN110867265B (en) * | 2019-11-26 | 2021-06-22 | 山东双鹰医疗器械有限公司 | Flexible neutron radiation protection material and preparation method of protection article |
| CN111312422A (en) * | 2020-02-27 | 2020-06-19 | 西安交通大学 | Flexible material with gamma ray radiation shielding function and silicon-based doped nano titanium oxide and preparation method thereof |
| CN113025049A (en) * | 2021-03-31 | 2021-06-25 | 中国核动力研究设计院 | Flexible tungsten-based composite shielding material and preparation method thereof |
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