CN109354826A - Nuclear screening material and its manufacturing method - Google Patents
Nuclear screening material and its manufacturing method Download PDFInfo
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- CN109354826A CN109354826A CN201811115151.6A CN201811115151A CN109354826A CN 109354826 A CN109354826 A CN 109354826A CN 201811115151 A CN201811115151 A CN 201811115151A CN 109354826 A CN109354826 A CN 109354826A
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- screening material
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/38—Boron-containing compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/06—Elements
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/10—Silicon-containing compounds
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F1/00—Shielding characterised by the composition of the materials
- G21F1/02—Selection of uniform shielding materials
- G21F1/10—Organic substances; Dispersions in organic carriers
- G21F1/103—Dispersions in organic carriers
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- Chemical & Material Sciences (AREA)
- Polymers & Plastics (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
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- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Reinforced Plastic Materials (AREA)
Abstract
Nuclear screening material provided by the invention and its manufacturing method, are related to composite material applied technical field.The nuclear screening material includes resin matrix, screener and fiber, and three is according to certain mass portion rate mixed-forming.The nuclear screening material has advantages of good shielding performance, mechanical strength height, light-weight good characteristic.Nuclear screening material manufacturing method provided by the invention can produce the nuclear screening material of various structures, structure is reliable, applied widely by the integrated molding technology of composite material.
Description
Technical field
The present invention relates to composite material applied technical fields, in particular to a kind of nuclear screening material and its manufacturer
Method.
Background technique
With the high speed development of science and technology, the appearance of the new ray technology such as particle accelerator and nuclear reactor and its
Extensive use in terms of science and techniques of defence, scientific research, radiation part medicine and nuclear industry, various radiation are especially put
The injury of penetrating property Radiation On Human body and the destruction in bad border is had been to be concerned by more and more people.Wherein neutron is that unique one kind can
So that substance ionising radiation with radionuclide, can cause bone, lung, thyroid gland canceration, leukaemia, even gene mutation and dyeing
Body distortion.In order to allow neutron technology preferably to service the mankind, studying and develop novel, the better neutron shield material of comprehensive performance
Material is very important.
Currently, common nuclear screening material is Boron-containing-PE shielding material, but due to the intensity of base polyethylene itself
It is low, it can only be poured into metal die and be used in the form of sandwich, structure is complicated, and weight is big, is not suitable for mobile reactor
There is the environment of intensity, weight demands to shielding material with portable source etc..
In view of this, designing and manufacturing a kind of nuclear screening material, not only there is good shield effectiveness, but also can be used in screen
Cover material have intensity, weight demands environment in, be in current nuclear screening Material Field be badly in need of improve the technical issues of.
Summary of the invention
The purpose of the present invention includes providing a kind of nuclear screening material, including resin matrix, screener and fiber, three according to
Certain mass portion rate mixed-forming.The nuclear screening material has advantages of good shielding performance, mechanical strength height, light-weight excellent spy
Property, can be used for having shielding material intensity, weight demands environment in, it is applied widely.
The purpose of the present invention further includes providing a kind of nuclear screening material manufacturing method, by resin matrix and screener according to pre-
If ratio mixes, by the integrated molding technology of composite material, the nuclear screening material with various structures can be produced.Pass through
The nuclear screening material of this method manufacture has advantages of good shielding performance, mechanical strength height, light-weight good characteristic.
It is that it is realized by adopting the following technical scheme that the present invention, which improves its technical problem,.
A kind of nuclear screening material provided by the invention, including resin matrix, screener and fiber, the resin matrix, institute
The mass parts ratio for stating screener and the fiber is 1:0.5:0.1 to 1:5:1.
Further, the resin matrix is epoxy resin, polyethylene, organic siliconresin, Novolac Cyanate Ester Resins, silicon
Any one in half pottery resin of aryne resin, hydridization or any a variety of mixture.
Further, the screener is the mixture of boron carbide, any one or two kinds in lead powder.
Further, the fiber is basalt fibre, carbon fiber, any one or two kinds and two kinds in glass fibre
Above mixture.
A kind of nuclear screening material manufacturing method provided by the invention, comprising the following steps:
It produces substrate mixture: resin matrix and screener is mixed according to preset ratio.
It prepares nuclear screening material: by described matrix mixture and fiber mixed-forming, nuclear screening material is made.
Further, described to produce in substrate mixture step, the mass fraction of the resin matrix and the screener
Than for 1:0.5 to 1:5.
Further, in the preparation nuclear screening material step, the technique of the mixed-forming is compression molding, autoclave
Molding or RTM molding.
Further, chopped basalt fibre and described matrix mixture are stirred, are poured into mold using hot pressing
Molding；The hot-forming condition are as follows: constant temperature and pressure state is first kept, is warming up to preset temperature, then keep constant temperature and pressure, it is rear cold
But to room temperature, it is shaped to nuclear screening material.
Further, long cut after carbon fiber is mixed with described matrix mixture is poured into mold；The mold vacuum is close
It is honored as a queen and is put into curing molding in autoclave, obtain nuclear screening material.
Further, three-dimensional structure fabric is woven to using continuous basalt fiber, the three-dimensional structure fabric is using more
Layer angle linkage structure；The three-dimensional structure fabric is put into mold, described matrix mixture, solidification are injected into the mold
Molding obtains nuclear screening material.
Nuclear screening material provided by the invention and its manufacturing method have the following aspects the utility model has the advantages that
Nuclear screening material provided by the invention, including resin matrix, screener and fiber, three is according to certain mass number
Compare mixed-forming.The nuclear screening material has advantages of good shielding performance, mechanical strength height, light-weight good characteristic, can be used for screen
Cover material have intensity, weight demands environment in, it is applied widely.
Nuclear screening material manufacturing method provided by the invention mixes resin matrix and screener according to preset ratio, leads to
The integrated molding technology for crossing composite material can produce the nuclear screening material with various structures.It is manufactured by this method
Nuclear screening material has advantages of good shielding performance, mechanical strength height, light-weight good characteristic, has great application value.
Specific embodiment
A kind of nuclear screening material provided in this embodiment, including resin matrix, screener and fiber, resin matrix, shielding
The mass parts ratio of agent and fiber is 1:0.5:0.1 to 1:5:1.
Optionally, resin matrix is epoxy resin, polyethylene, organic siliconresin, Novolac Cyanate Ester Resins, silicon aryne tree
Any one in half pottery resin of rouge, hydridization or any a variety of mixture.For example, resin matrix is epoxy resin, resin base
Body is organic siliconresin, alternatively, resin matrix is that Novolac Cyanate Ester Resins, silicon aryne resin and hydridization half is made pottery three kinds of resin
Mixture can also be other composite types, no longer illustrate one by one here.
Screener is the mixture of boron carbide, any one or two kinds in lead powder.For example, screener is boron carbide, screen
Covering agent is lead powder, alternatively, screener is the mixture of boron carbide and lead powder.
Fiber is basalt fibre, carbon fiber, any one or two kinds and two or more mixtures in glass fibre.
A kind of nuclear screening material manufacturing method provided in this embodiment, comprising the following steps:
S1: it produces substrate mixture: resin matrix and screener is mixed according to preset ratio.Preferably, resin matrix
It according to mass parts ratio is that 1:0.5 to 1:5 is carried out with the mixed proportion of screener.
S2: by substrate mixture and fiber mixed-forming, nuclear screening material preparation nuclear screening material: is made.Mixed-forming
Technique can be compression molding, autoclave molding or RTM molding etc..
Optionally, chopped basalt fibre and substrate mixture are added in blender, after high-speed stirred, reach mixed
It closes uniformly, sufficiently, pours into mold using hot-forming.Preferably, the mixing speed of blender is 600rpm to 1200rpm.
Hot-forming condition are as follows: first keep constant temperature and pressure state, be warming up to preset temperature, then keep constant temperature and pressure state, after with mold
It is cooled to room temperature, is shaped to nuclear screening material.It should be noted that the planform of the nuclear screening material can be by designing mould
The different shape of tool obtains the shielding material of different structure, shape, to adapt to different use environment requirements.
Optionally, length is cut into carbon fiber and substrate mixture pours into mold after evenly mixing.After mold vacuum sealing
It is put into curing molding in autoclave, obtains the nuclear screening material with certain shapes structure.
Alternatively, being woven to three-dimensional structure fabric on braider using continuous basalt fiber, three-dimensional structure fabric is used
Multilayer angle linkage structure.After obtaining substrate mixture, suitable substrate mixture is poured into mold, three-dimensional structure fabric is put down
It is put into mold, then injects substrate mixture into mold, substrate mixture is uniformly brushed to three-dimensional structure fabric with brush
Surface.By three-dimensional structure fabric and mold together curing molding, nuclear screening material is obtained.
Certainly, it is not limited to that, can also use other moulding process, other kinds of fibers etc., molding produces not
The nuclear screening material of same planform, different mechanical properties.Here is the specific manufacturing process of several nuclear screening materials.
First embodiment
100 parts of bisphenol A epoxide resins and 100 parts of boron carbides are added to after 15min is mixed in high-speed mixer, are stirred
Machine revolving speed 800rpm is mixed, resin compound is obtained.The chopped basalt fibre that 60 parts of length are 3mm to 10mm is added to above-mentioned
Resin compound in, continue stir 15min.Pour into it is hot-forming in mold, hot pressing condition be 80 DEG C of temperature, pressure 3MPa,
After constant temperature and pressure 60min, it is warming up to 120 DEG C, pressure 3MPa, continues constant temperature and pressure 120min, is cooled to room temperature with mold, is demoulded
Obtain the nuclear screening material with certain shapes structure.
Second embodiment
100 parts of bisphenol A epoxide resins and 200 parts of lead powder are added to after 10min is mixed in high-speed mixer, stirring
Machine revolving speed 800rpm obtains substrate mixture.The length that 100 parts of length are 10mm to 20mm is cut into carbon fiber and is added to above-mentioned base
In body mixture, continue to pour into mold after stirring 10min, and be put into autoclave and solidify after mold is sealed using vacuum bag
Molding.Condition of cure are as follows: it is evacuated to 0.095MPa at room temperature, is started to warm up with the speed of 1.0 DEG C/min to 2.0 DEG C/min,
Start to be forced into 0.8MPa when temperature rises to 50 DEG C, be continuously heating to 120 DEG C, after keeping the temperature 120min, extremely with 0.5 DEG C/min
The rate of 2.0 DEG C/min is cooled to room temperature, and takes out product, and demoulding obtains the nuclear screening material with certain shapes structure.
3rd embodiment
Take 80 parts of weight finenesses be 2000tex basalt fibre, setting through it is close be 120/10cm to 180/10cm,
Filling density is 30/10cm to 60/10cm, is woven on jacquard weave rapier loom and is weaved using chain group of multilayer angle, formation has
The three-dimensional structure fabric of 10cm thickness, the chain tissue of the multilayer angle is using through angle linkage mode.Take 100 parts of bisphenol-A epoxy trees
Rouge and 150 parts of boron carbides are added in high-speed mixer after mixing 10min, and mixing speed is about 1000rpm, obtain resin
Glue.Take prepare 1/3 resin adhesive liquid to pour into mold, then by the good three-dimensional structure fabric of above-mentioned weaving lay flat into
In mold, and remaining 2/3 resin adhesive liquid is uniformly slowly poured into fabric upper surface, and uniform with brush brushing.By three
Dimension construction fabric and mold are put into togerther in curing oven, and after solidifying 7h under the conditions of 80 DEG C, mold cools down with curing oven natural cooling
It is demoulded afterwards to get the nuclear screening material with certain shapes structure is arrived.
Table one is the performance parameter for the nuclear screening material that above three embodiments are produced respectively and the property of universal shield material
The contrast table of energy parameter.
Table one:
As can be seen from Table I, the nuclear screening material produced in first embodiment and second embodiment tensile strength,
It is remarkably reinforced in compression strength, neutron transmission rate is lower, and nuclear screening effect is more preferable.And the nuclear screening produced in 3rd embodiment
Material reinforcing effect in tensile strength, compression strength is more obvious, and mechanical property is greatly improved, and neutron transmission rate is than general
The neutron transmission rate of logical shielding material is slightly higher little by little.The nuclear screening material proposed in the present embodiment has better mechanical property
Can, structural support and shield effectiveness two can be played the role of, application range is more extensive.
In conclusion nuclear screening material provided by the invention and its manufacturing method have the beneficial effect of the following aspects
Fruit:
Nuclear screening material provided by the invention, while there is advantages of good shielding performance, mechanical strength height, light-weight excellent spy
Property.By the integrated molding technology of composite material, various complicated nuclear screening materials can be manufactured, the length of fiber is utilized
The modes such as short, trend and 3 D weaving, can design the mechanical property of nuclear screening material, according to demand to meet core under various operating conditions
The use of shielding material.
Nuclear screening material manufacturing method provided by the invention, simple process is flexible, and forming technique is mature, can produce various
The nuclear screening material of mechanical property, can be used for having shielding material intensity, weight demands environment in, it is applied widely, have
Great application value.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the present invention can have various changes, combination and variation.All within the spirits and principles of the present invention, made
Any modification, equivalent substitution, improvement and etc. should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of nuclear screening material, which is characterized in that including resin matrix, screener and fiber, the resin matrix, the screen
The mass parts ratio for covering agent and the fiber is 1:0.5:0.1 to 1:5:1.
2. nuclear screening material according to claim 1, which is characterized in that the resin matrix be epoxy resin, polyethylene,
Organic siliconresin, Novolac Cyanate Ester Resins, silicon aryne resin, hydridization half make pottery in resin any one or it is any a variety of mixed
Close object.
3. nuclear screening material according to claim 1, which is characterized in that the screener is boron carbide, appointing in lead powder
The mixture for one or two of anticipating.
4. nuclear screening material according to claim 1, which is characterized in that the fiber is basalt fibre, carbon fiber, glass
Any one in glass fiber or two kinds and two or more mixtures.
5. a kind of nuclear screening material manufacturing method, which comprises the following steps:
It produces substrate mixture: resin matrix and screener is mixed according to preset ratio；
It prepares nuclear screening material: by described matrix mixture and fiber mixed-forming, nuclear screening material is made.
6. nuclear screening material manufacturing method according to claim 5, which is characterized in that described to produce substrate mixture step
In, the mass parts ratio of the resin matrix and the screener is 1:0.5 to 1:5.
7. nuclear screening material manufacturing method according to claim 5, which is characterized in that the preparation nuclear screening material step
In, the technique of the mixed-forming is compression molding, autoclave molding or RTM molding.
8. nuclear screening material manufacturing method according to claim 5, which is characterized in that by chopped basalt fibre with it is described
Substrate mixture is stirred, and is poured into mold using hot-forming；The hot-forming condition are as follows: first keep constant temperature and pressure shape
State is warming up to preset temperature, then keeps constant temperature and pressure, after be cooled to room temperature, be shaped to nuclear screening material.
9. nuclear screening material manufacturing method according to claim 5, which is characterized in that length is cut carbon fiber and described matrix
It is poured into mold after mixture mixing；It is put into curing molding in autoclave after the mold vacuum sealing, obtains nuclear screening material.
10. nuclear screening material manufacturing method according to claim 5, which is characterized in that compiled using continuous basalt fiber
It is woven to three-dimensional structure fabric, the three-dimensional structure fabric uses multilayer angle linkage structure；The three-dimensional structure fabric is put into mould
In tool, described matrix mixture is injected into the mold, curing molding obtains nuclear screening material.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811115151.6A CN109354826B (en) | 2018-09-25 | 2018-09-25 | Nuclear shielding material and method for producing same |
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| CN201811115151.6A CN109354826B (en) | 2018-09-25 | 2018-09-25 | Nuclear shielding material and method for producing same |
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| CN109354826A true CN109354826A (en) | 2019-02-19 |
| CN109354826B CN109354826B (en) | 2021-03-26 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112143229A (en) * | 2019-06-26 | 2020-12-29 | 生态环境部核与辐射安全中心 | Preparation method of boron-containing shielding composite material |
| CN112331375A (en) * | 2020-11-23 | 2021-02-05 | 四川玄武岩纤维新材料研究院(创新中心) | Basalt and other fiber honeycomb fabric nuclear shielding composite material and preparation method and application thereof |
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| JP2008007647A (en) * | 2006-06-29 | 2008-01-17 | Nec Corp | Heat conductive resin material and its molded product |
| CN106280461A (en) * | 2016-09-13 | 2017-01-04 | 北京市射线应用研究中心 | A kind of high temperature resistant neutron and gamma ray shielding composite and preparation method thereof |
| CN106317787A (en) * | 2016-09-13 | 2017-01-11 | 北京市射线应用研究中心 | High-temperature-resistant epoxy resin-based neutron and gamma-ray shielding composite material and preparation method thereof |
| CN107955332A (en) * | 2017-12-04 | 2018-04-24 | 北京航空航天大学 | A kind of neutron shield superhybrid composite laminate and preparation method thereof |
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2018
- 2018-09-25 CN CN201811115151.6A patent/CN109354826B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008007647A (en) * | 2006-06-29 | 2008-01-17 | Nec Corp | Heat conductive resin material and its molded product |
| CN106280461A (en) * | 2016-09-13 | 2017-01-04 | 北京市射线应用研究中心 | A kind of high temperature resistant neutron and gamma ray shielding composite and preparation method thereof |
| CN106317787A (en) * | 2016-09-13 | 2017-01-11 | 北京市射线应用研究中心 | High-temperature-resistant epoxy resin-based neutron and gamma-ray shielding composite material and preparation method thereof |
| CN107955332A (en) * | 2017-12-04 | 2018-04-24 | 北京航空航天大学 | A kind of neutron shield superhybrid composite laminate and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112143229A (en) * | 2019-06-26 | 2020-12-29 | 生态环境部核与辐射安全中心 | Preparation method of boron-containing shielding composite material |
| CN112331375A (en) * | 2020-11-23 | 2021-02-05 | 四川玄武岩纤维新材料研究院(创新中心) | Basalt and other fiber honeycomb fabric nuclear shielding composite material and preparation method and application thereof |
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| CN109354826B (en) | 2021-03-26 |
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