CN105482225B - A kind of anti-nuclear radiation rare earth composite material and preparation method thereof - Google Patents
A kind of anti-nuclear radiation rare earth composite material and preparation method thereof Download PDFInfo
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- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/10—Esters; Ether-esters
- C08K5/12—Esters; Ether-esters of cyclic polycarboxylic acids
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- C08K5/00—Use of organic ingredients
- C08K5/54—Silicon-containing compounds
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- 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
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- 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
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- G21F1/10—Organic substances; Dispersions in organic carriers
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- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
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- C08K3/20—Oxides; Hydroxides
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- C08K3/00—Use of inorganic substances as compounding ingredients
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
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Abstract
The present invention relates to a kind of anti-nuclear radiation rare earth composite materials, are grouped as by the group of following weight percent content: inorganic material 20~80%, rare earth compound 10~60%, macromolecule resin 5~50%, additive 0.9~2.0%.Compared with prior art, the present invention has good mechanical property, waterproof performance and workability, and light, nontoxic, easy to process, and has good shield effectiveness to gamma ray and neutron ray.
Description
Technical field
The invention belongs to technical field of nuclear radiation protection, and in particular to a kind of nuclear screening RE polymer composite and its
Preparation method.
Background technique
With the fast development of nuclear technology related industry, high-energy radiation ray is widely used to industry, medical treatment, scientific research etc.
Multiple fields, thus bring radiation safety and protection question are also more and more important.Primary protection object is X-ray, gamma-rays
And neutron, especially gamma-rays and neutron irradiation, penetration power is strong, and protecting improper then can carry out huge prestige to personnel and equipment belt
The side of body.Heavy element or element with big absorption cross-section, which can be used to slow down, fast neutron and absorbs secondary gamma ray；The hydrogen of high-content is former
Son can block intermediate neutrons, and not generate gamma-rays quadratic effect.So the material for shielding gamma-rays and neutron current is usual
It is the element containing heavy element and big absorption cross-section, such as lead, tungsten, iron, barium；And contain the sufficient amount of crystallization water or hydrogen member
Plain such as water, paraffin, polyethylene, polypropylene, polystyrene, polyester high polymer.
Shielding material used in nuclear radiation protection material also requires material other than requiring it to have excellent protective performance
There is superior stability and certain mechanical property under radiation parameter.Nuclear reactor, nuclear tests room, nuclear fuel factory at present
Neutron ray shielding used in equal fields is mostly Boron-containing-PE, contains boron resin, paraffin, leaded loaded concrete, aluminium boride or carbon
Change boron, wherein the most widely used is leaded loaded concrete and Boron-containing-PE.These materials be mostly since boron content is high or
Protium content is high and has excellent radiation shield performance, but hardness is all bigger and flexibility and bending is not repeatedly
It is good, cannot paste the instrument and pipeline when carrying out neutron shield to irregular instrument or pipeline well, and occupied space compared with
Greatly.Meanwhile the ray that Pb is higher than energy between 88keV and 13~40keV has good absorbability；But to energy between 40
But there is one " the weak absorbing area of Pb " in the ray between~88keV, it is poor and toxic to cover effect to neutron absorbing screen；Boron is hankered
Sub- absorbent properties are successively decreased.In addition, the manufacturing process of these shielding materials is also extremely complex.
Chinese patent CN102030938A discloses a kind of Foamed neutron absorber material, by the mixture of following mass fractions
Foamed neutron absorber material: neutron-absorbing material 10~60% and basis material 40~90%, the neutron is made in foamed technique
Absorbent is boron carbide, ferrite, rare earth compound, lithium hydride, one or more in paraffin.Described matrix material be cement or
The mixing of high molecular polymer or both.Firstly, Foamed neutron absorber material is made because internal structure contains greatly in foamed technique
The hole of amount will affect the intensity of material, cannot effectively block fast neutron；Secondly, selected polyurethane, methacrylic acid tree
The foamed materials such as rouge resistance to ag(e)ing itself is not strong, especially in anti-neutron irradiation aspect of performance, shields function in the neutron irradiation of material
It can be difficult to have both with structure-integrated.
Summary of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of radiation screening effects
It is good, flexibility is good, tensile strength is high, light, nontoxic and consistency of performance novel anti-nuclear radiation material, be suitable for rule or
The nuclear radiation shield of irregular equipment and the nuclear radiation material that can be used in making vest.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of anti-nuclear radiation rare earth composite material, is grouped as by the group of following weight percent content:
The inorganic material is selected from the P052.5 portland cement of high grade, the silica flour of 200~400 mesh, barite
One or more of powder, brown ocher or boron carbide.
Rare earth element in the rare-earth compound is selected from a variety of of lanthanum, gadolinium, samarium, europium or dysprosium.
The rare-earth compound is selected from the oxide of rare earth element, the oxalates of rare earth element, rare earth element
One of complex of carbonate or rare earth element is a variety of.
The macromolecule resin includes polyethylene, polypropylene, polystyrene, polycarbonate or polyester.
The additive is (1~5) by silane coupling agent, stearic acid and plasticizer in mass ratio: (1~10): (1~
10) it forms.
The plasticizer includes two isodecyl of dioctyl phthalate, diisooctyl phthalate or phthalic acid
Ester.
A kind of preparation method of anti-nuclear radiation rare earth composite material, comprising the following steps:
(1) inorganic material, rare-earth compound, additive are uniformly mixed according to a ratio, are added containing high score subtree
The lotion of rouge, is uniformly mixing to obtain mixture；
(2) mixture is constructed, obtains anti-nuclear radiation rare earth composite material after dry.
The lotion containing macromolecule resin is non-ionic lotion, and the mass content of macromolecule resin is in lotion
40~80%.
Preferably, the mass content of macromolecule resin is 50~80% in the lotion.
The present invention has very big neutron absorption cross-section and good prisoner using rare earth element, especially samarium, europium, gadolinium, dysprosium
Obtain thermal neutron effect；And the high polymers such as paraffin, polyethylene, polypropylene, polystyrene, polyester contain sufficient amount of protium
With easy processing molding the characteristics of, invented it is a kind of it is light, nontoxic, physical property is excellent, nuclear radiation shield effect is good and performance is held
Long novel anti-nuclear radiation material.
Rare earth element especially samarium, europium, gadolinium, dysprosium etc., their neutron absorption cross-section is very big, and there is good capture to hanker
Son effect；Hydrogeneous more high polymer material such as polyethylene, polypropylene, polystyrene, polyester is introduced, these materials have preferable
Radiation resistance, while there is the hydrogen atom that can block intermediate neutrons of high-content, and do not generate gamma-rays quadratic effect.Separately
Outside, because the present invention is inorganic/organic composite material, there is higher compactness, therefore have excellent ageing-resistant performance, excellent is impervious
Aqueous and crack resistance makes title composite material have combination of rigidity and flexibility, to solve neutron irradiation function of shielding and structure in material
Integration be difficult to both with problem.The present invention is used in portland cement, the silica flour of 200~400 mesh, blanc fixe, brown iron
Macromolecule resin lotion is added in the inorganic material such as miberal powder or boron carbide, is on the one hand machined to type conveniently, on the other hand makes
Composite material have nuclear radiation shield performance, mechanical property, waterproof performance and workability, and have cracking resistance, it is corrosion-resistant and
The advantages that density distribution uniformity, application range are more extensive.
Compared with prior art, the invention has the following advantages:
Meet requirements of the national standard, there is good nuclear radiation shield performance, mechanical property, waterproof performance and application property
Can, and have many advantages, such as cracking resistance, corrosion-resistant and density distribution uniformity.
Specific embodiment
The present invention is described in detail combined with specific embodiments below, so that advantages and features of the invention can be easier to
It is readily appreciated by one skilled in the art, apparent is explicitly defined to be made to protection scope of the present invention.
Embodiment 1
A kind of anti-nuclear radiation rare earth composite material, consists of the following components in percentage by weight:
It weighs inorganic filler, rare earth compound and additive respectively by mass fraction, is uniformly mixed, adds nonionic
Polyethylene emulsion stirs evenly.
Embodiment 2
The composite material of the present embodiment is made by the component of following weight percent content:
It weighs inorganic filler, rare earth compound and additive respectively by mass fraction, is uniformly mixed, adds nonionic
Polycarbonate emulsion stirs evenly.Obtain the anti-nuclear radiation RE polymer composite.
Table 1 is that the rare earth anti-nuclear radiation polymer composite of the preparation of embodiment 1 and the neutron of common PE (no rare earth) are penetrated
Line shielding properties.
Table 1
Embodiment 3
A kind of anti-nuclear radiation rare earth composite material, consists of the following components in percentage by weight:
It weighs inorganic filler, rare earth compound and additive respectively by mass fraction, is uniformly mixed, add according still further to proportion
The non-ionic emulsion for entering high density polyethylene (HDPE), stirs evenly, and constructs, dry, and it is compound to obtain the anti-nuclear radiation rare earth high polymer
Material.
Embodiment 4
It weighs inorganic filler, rare earth compound and additive respectively by mass fraction, is uniformly mixed, add according still further to proportion
The non-ionic emulsion for entering polycarbonate, stirs evenly, and constructs, dry, obtains the anti-nuclear radiation RE polymer composite.
Embodiment 5
A kind of anti-nuclear radiation rare earth composite material, consists of the following components in percentage by weight:
It weighs inorganic filler, rare earth compound and additive respectively by mass fraction, is uniformly mixed, add according still further to proportion
Enter polyacrylic non-ionic emulsion, stir evenly, constructs, it is dry, obtain the anti-nuclear radiation RE polymer composite.
Embodiment 6
The present embodiment is substantially the same manner as Example 1, the difference is that macromolecule resin is polystyrene.
Embodiment 7
The present embodiment is substantially the same manner as Example 1, the difference is that macromolecule resin is polyester.
Embodiment 8
The present embodiment is substantially the same manner as Example 1, the difference is that, the plasticizer in the present embodiment is phthalic acid
Di-isooctyl.
Embodiment 9
The present embodiment is substantially the same manner as Example 1, the difference is that, the plasticizer in the present embodiment is phthalic acid
Diisodecyl ester.
Embodiment 10
The present embodiment is substantially the same manner as Example 1, the difference is that the mass content of the additive in the present embodiment is
2%, silane coupling agent, stearic acid and plasticizer in additive are 1:10:1 composition in mass ratio.
Embodiment 11
The present embodiment is substantially the same manner as Example 1, the difference is that the mass content of the additive in the present embodiment is
2%, silane coupling agent, stearic acid and plasticizer in additive are 5:1:10 composition in mass ratio.
Embodiment 12
The present embodiment is substantially the same manner as Example 1, the difference is that the rare-earth compound in the present embodiment be lanthanum,
The carbonate of gadolinium and samarium.
Embodiment 13
The present embodiment is substantially the same manner as Example 1, the difference is that the rare-earth compound in the present embodiment be samarium,
The oxalates of europium and dysprosium.
One of the above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art within the technical scope disclosed by the invention, the change that can be expected without creative work
Change or replace, should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with claims
Defined by subject to protection scope.
Claims (4)
1. a kind of anti-nuclear radiation rare earth composite material, which is characterized in that be grouped as by the group of following weight percent content:
The macromolecule resin is the high density polyethylene (HDPE) of Anhui self-support plastics Co., Ltd production；
The additive is made of in mass ratio for 1:1:3 silane coupling agent, stearic acid and plasticizer, and the plasticizer is
Dioctyl phthalate；
The inorganic material is the silica flour and blanc fixe 39:6 in mass ratio composition of 200~400 mesh；
The rare-earth compound is by the lanthana, gadolinium oxide and samarium oxide of 200~400 mesh according to mass ratio 4:5:5 group
At；The preparation method of the anti-nuclear radiation rare earth composite material the following steps are included:
(1) inorganic material, rare-earth compound, additive are uniformly mixed according to a ratio, are added containing macromolecule resin
Lotion is uniformly mixing to obtain mixture；
(2) mixture is constructed, obtains anti-nuclear radiation rare earth composite material after dry；
The lotion containing macromolecule resin is non-ionic lotion, in lotion the mass content of macromolecule resin be 40~
80%.
2. a kind of preparation method of anti-nuclear radiation rare earth composite material as described in claim 1, which is characterized in that including following
Step:
(1) inorganic material, rare-earth compound, additive are uniformly mixed according to a ratio, are added containing macromolecule resin
Lotion is uniformly mixing to obtain mixture；
(2) mixture is constructed, obtains anti-nuclear radiation rare earth composite material after dry.
3. a kind of preparation method of anti-nuclear radiation rare earth composite material according to claim 2, which is characterized in that described
Lotion containing macromolecule resin is non-ionic lotion, and the mass content of macromolecule resin is 40~80% in lotion.
4. a kind of preparation method of anti-nuclear radiation rare earth composite material according to claim 3, which is characterized in that described
The mass content of macromolecule resin is 50~80% in lotion.
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| CN201511024105.1A CN105482225B (en) | 2015-12-30 | 2015-12-30 | A kind of anti-nuclear radiation rare earth composite material and preparation method thereof |
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Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106057260B (en) * | 2016-03-21 | 2017-12-05 | 宁夏乐嘉新材料有限公司 | A kind of powerful X-ray radiation protection rubber composite based on more metal composite compounds |
| CN106007500B (en) * | 2016-05-18 | 2017-11-14 | 益阳金宙建材科技有限公司 | A kind of hard and soft protection mortar for nuclear power station |
| CN106750820B (en) * | 2017-01-12 | 2020-11-24 | 中国工程物理研究院核物理与化学研究所 | Low-density neutron shielding material and preparation method thereof |
| CN107910088A (en) * | 2017-10-12 | 2018-04-13 | 上海师范大学 | A kind of rare-earth-based flexible core radiation protection material and its preparation method and application |
| CN107573569A (en) * | 2017-10-27 | 2018-01-12 | 镇江奥特氟科技有限公司 | A kind of composite particulate material and radiant panel of high-performance shielding neutron gamma radiation |
| CN107722425A (en) * | 2017-10-27 | 2018-02-23 | 镇江奥特氟科技有限公司 | A kind of composite particulate material and radiant panel of the radiation of high-intensity shielding neutron gamma |
| CN108198640A (en) * | 2018-01-29 | 2018-06-22 | 洛阳市琦安科技有限公司 | The material and application method that radioactive pollutant is controlled to suspend or migrate under low temperature |
| CN108511096A (en) * | 2018-03-29 | 2018-09-07 | 广州新莱福磁电有限公司 | A kind of lightweight radiation protection material |
| CN108976795A (en) * | 2018-05-31 | 2018-12-11 | 四川大学 | A kind of polyarylphosphorus ether radiation protection composite material and preparation method thereof |
| CN109817361A (en) * | 2019-01-23 | 2019-05-28 | 北京镭硼科技有限责任公司 | A kind of neutron shielding material and preparation method thereof of high fire-retardance low volatility |
| CN110498962A (en) * | 2019-08-27 | 2019-11-26 | 上海龙洲新型建材有限公司 | A kind of radiation protection rare earth composite material and its technique is filled in type |
| CN113121977A (en) * | 2021-04-15 | 2021-07-16 | 湖北科技学院 | High-light-transmittance neutron shielding composite material and preparation method thereof |
| CN113214558B (en) * | 2021-06-04 | 2022-04-15 | 中国核动力研究设计院 | High-use-temperature accident-condition-resistant anti-irradiation material and preparation method thereof |
| CN113912341A (en) * | 2021-09-23 | 2022-01-11 | 中国核电工程有限公司 | Concrete material for neutron absorption and shielding and preparation method thereof |
| CN113838589A (en) * | 2021-10-15 | 2021-12-24 | 四川长晏科技有限公司 | Inorganic radiation protection material and preparation method and application thereof |
| CN114835492A (en) * | 2022-05-18 | 2022-08-02 | 厦门稀土材料研究所 | Rare earth-based zirconium-hafnium composite ceramic material and preparation method and application thereof |
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| CN101386719A (en) * | 2008-08-28 | 2009-03-18 | 冯守中 | Multifunctional coatings and preparation method thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1789319A (en) * | 2004-12-14 | 2006-06-21 | 北京化工大学 | Rare earth modified leadless X-ray shielding plastic |
| CN101042945A (en) * | 2006-07-20 | 2007-09-26 | 永州市健民射线防护设备有限公司 | Environment-friendly type radiation protection composite board |
| CN101386719A (en) * | 2008-08-28 | 2009-03-18 | 冯守中 | Multifunctional coatings and preparation method thereof |
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