CN102030938A - Foamed neutron absorber material - Google Patents
Foamed neutron absorber material Download PDFInfo
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- CN102030938A CN102030938A CN 201010531914 CN201010531914A CN102030938A CN 102030938 A CN102030938 A CN 102030938A CN 201010531914 CN201010531914 CN 201010531914 CN 201010531914 A CN201010531914 A CN 201010531914A CN 102030938 A CN102030938 A CN 102030938A
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- neutron
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- absorbing material
- neutron absorber
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Abstract
The invention discloses a foamed neutron absorber material. The foaming neutron absorber material is prepared from the mixture of 10-60% of neutron absorber and 40-90% of matrix material through foaming, wherein the neutron absorber is one or more than one of boron carbide, ferrite, rare earth compound, lithium hydride and paraffin wax, and the matrix material is cement, or macromolecular polymer or their mixture. 'Foaming' process is innovatively applied, massive synthesized neutron absorber are dispersed on walls of the pores formed by foaming. The matrix cellular caves greatly expand capacity for capturing neutron rays, neutron rays in the interior of foamed body are diffused by virtue of electromagnetic vortex pore wall, and the scattered neutron waves are gradually attenuated and absorbed.
Description
Technical field
The present invention relates to building material field, specifically is a kind of foaming neutron absorbing material.
Background technology
Though the neutron neutral has very strong penetration power, it can propagate nearly 100 meters radiation length in air and other materials, and X, the gamma ray of the hazard ratio same dose that human body is produced are even more serious.In the ionizing radiation protection, its neutron shielding is the most important thing.At present, it has been found that the material that much has the neutron absorptive function, commonly used is norbide, rare earth compound, Ferrite Material, graphite, and has obtained application in a lot of products.But present neutron absorbing material all is mixed and made into body material norbide, rare earth compound, ferrite, graphite isotonic absorption agent are simple, and the distribution of neutron-absorbing material in mixture is also inhomogeneous, and the neutron assimilation effect is unsatisfactory.
Summary of the invention
In order to overcome above-mentioned defective, the invention provides a kind of foaming neutron absorbing material, do body material with cement or high molecular polymer, use foam process and prepare high performance neutron absorption foam material.
Technical scheme of the present invention is achieved in that a kind of foaming neutron absorbing material, and the mixture of following massfraction is made foaming neutron absorbing material through foam process:
Neutron-absorbing material 10-60%;
Body material 40-90%.
Described neutron-absorbing material be in norbide, ferrite, rare earth compound, lithium hydride, the paraffin one or more.
Described body material is cement or high molecular polymer or both mixing.
Described high molecular polymer is polyethylene, urethane, Resins, epoxy, methacrylic resin, terpolymer EP rubber or polyaniline.
The invention has the beneficial effects as follows: since the utilization of innovation " foaming " technology, with a large amount of synthetic neutron-absorbing materials, be scattered on the formed hole wall that foams.This matrix form abscess solution cavity has been expanded the capacity of catching neutron ray greatly, makes the neutron ray that enters foam inside, looses by electromagnetism vortex hole wall screen, and the scattered neutron ripple is decayed gradually to be sponged.This foam material with intercept neutrons function, can with the cassette ceiling in the building, combined wall combination constitutes the civil air defense constructions and installations that can prevent nuclear radiation, also can be used as monomer material, is applied to protective materials such as military equipment, scientific research and testing, medical facilities.
Embodiment
Embodiment 1
Consisting of of foaming neutron absorbing material: neutron-absorbing material and body material.Wherein, neutron-absorbing material is the mixture of norbide and paraffin, and body material is the mixing of cement and polyvinyl resin, and its proportioning is:
Boron carbide powder 12-35
Paraffin 2-5
Cement 0.5-1
Polyvinyl resin 60-84
Boron carbide powder, paraffin, cement are mixed according to the above ratio, putting into vacuum mixer stirred 20 minutes, add uniform mixing in the polyvinyl resin of aforementioned proportion then to, the pre-frothing material melt molten foaming, be prepared from neutron absorption foam material according to standard foaming program.
The boron carbide material neutron-capture cross section is big, and capture spectra is wide, it is mixed with paraffin subdue the speed that fast neutron is propagated.Rare earth compound in the material has unique atomic structure ordering, great absorption cross, and have abundant energy level transition, bigger magnetic moment of atom, very strong spin orbital coupled characteristic.Rare earth is merged with the soft magnetism particle, formed between the electromagnetism co-ordination area of broad, strengthened the absorption efficiency of thermal neutron, moderate energy neutron.
Embodiment 2
Consisting of of foaming neutron absorbing material: neutron-absorbing material and body material.Wherein, neutron-absorbing material is the mixture of hexagonal boron carbide powder and ferrite powder, and body material is a barium cement, and its proportioning is:
Hexagonal norbide 5-20
Ferrite powder 5-20
Barium cement 65-80
Hexagonal norbide, ferrite powder are mixed according to the above ratio, and vacuum stirring 20 minutes obtains neutron-absorbing material, is doped to then in the barium cement of aforementioned proportion, and uniform mixing obtains the pre-frothing material.Adopt the method for physics or chemical foaming to foam, be prepared into neutron and absorb foam material.
Embodiment 3
Consisting of of foaming neutron absorbing material: neutron-absorbing material and body material.Wherein, neutron-absorbing material is a rare earth oxide, and body material is a terpolymer EP rubber, and its proportioning is:
Rare earth compound (Gd, Sm, Dy, La, Ce) 20-40
Terpolymer EP rubber 50-80
Polyvinyl alcohol: mass fraction 2-5
Rare earth compound is carried out the polyvinyl alcohol purifying, adopt chemical plating method and foam process, in Ethylene Propylene Terpolymer foam surface applied one deck rare earth coating, prepare the Ethylene Propylene Terpolymer foam and be nuclear, rare earth compound be shell have neutron, soon, the spheroplast neutron absorption foam material of " shell bag nuclear " structure of radiation wave attenuation by absorption function at a slow speed.
The above; only be the preferable embodiment of the present invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to replacement or change according to technical scheme of the present invention and inventive concept thereof, all should be encompassed within protection scope of the present invention.
Claims (4)
1. foaming neutron absorbing material is characterized in that: the mixture of following massfraction is made foaming neutron absorbing material through foam process:
Neutron-absorbing material 10-60%;
Body material 40-90%.
2. foaming neutron absorbing material according to claim 1 is characterized in that: described neutron-absorbing material be in norbide, ferrite, rare earth compound, lithium hydride, graphite, the paraffin one or more.
3. foaming neutron absorbing material according to claim 1 is characterized in that: described body material is cement or high molecular polymer or both mixing.
4. foaming neutron absorbing material according to claim 3 is characterized in that: described high molecular polymer is polyethylene, urethane, Resins, epoxy, methacrylic resin, terpolymer EP rubber or polyaniline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010531914 CN102030938A (en) | 2010-10-27 | 2010-10-27 | Foamed neutron absorber material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010531914 CN102030938A (en) | 2010-10-27 | 2010-10-27 | Foamed neutron absorber material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102030938A true CN102030938A (en) | 2011-04-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN 201010531914 Pending CN102030938A (en) | 2010-10-27 | 2010-10-27 | Foamed neutron absorber material |
Country Status (1)
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| CN (1) | CN102030938A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103183928A (en) * | 2013-03-21 | 2013-07-03 | 中国船舶重工集团公司第七一九研究所 | High-temperature resisting shielding material with neutron shielding effect |
| WO2013057588A3 (en) * | 2011-10-17 | 2014-03-27 | Cella Energy Limited | Spacecraft and spacesuit shield |
| WO2014121717A1 (en) * | 2013-02-11 | 2014-08-14 | Industrial Technology Research Institute | Radiation shielding composite material including radiation absorbing material and method for preparing the same |
| CN104130615A (en) * | 2014-07-21 | 2014-11-05 | 关锦池 | Neutron radiation resistant coating |
| CN104310399A (en) * | 2014-10-09 | 2015-01-28 | 东莞理工学院 | Processing technology for boron carbide neutron absorber |
| US9093184B2 (en) | 2011-10-17 | 2015-07-28 | Cella Acquisition Limited | Spacecraft shield |
| CN105645865A (en) * | 2015-12-30 | 2016-06-08 | 上海师范大学 | Rare-earth nuclear-radiation-proof mortar and preparation method of rare-earth nuclear-radiation-proof mortar |
| CN107164755A (en) * | 2017-05-18 | 2017-09-15 | 江苏广川线缆股份有限公司 | The spraying method of neutron absorption composite material on a kind of stainless steel substrate |
| CN107312439A (en) * | 2017-07-24 | 2017-11-03 | 合肥思敬齐化工材料有限责任公司 | A kind of aqueous polyurethane coating of anti-neutron irradiation and preparation method thereof |
| CN107555850A (en) * | 2017-07-21 | 2018-01-09 | 东莞中子科学中心 | A kind of composite for neutron shielding and its preparation method and application |
| CN108863442A (en) * | 2018-06-13 | 2018-11-23 | 南京航空航天大学 | A kind of neutron shield composite material and preparation method |
| CN113345615A (en) * | 2021-05-31 | 2021-09-03 | 中国工程物理研究院材料研究所 | Paraffin/boron carbide neutron protection composite material and preparation method thereof |
Citations (2)
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| CN1636252A (en) * | 2001-06-08 | 2005-07-06 | 安德里安·约瑟夫 | Flexible amorphous composition for high level radiation and environmental protection |
| CN102141182A (en) * | 2010-01-28 | 2011-08-03 | 中国核动力研究设计院 | Heat insulation material capable of insulating heat and neutrons |
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2010
- 2010-10-27 CN CN 201010531914 patent/CN102030938A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1636252A (en) * | 2001-06-08 | 2005-07-06 | 安德里安·约瑟夫 | Flexible amorphous composition for high level radiation and environmental protection |
| CN102141182A (en) * | 2010-01-28 | 2011-08-03 | 中国核动力研究设计院 | Heat insulation material capable of insulating heat and neutrons |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013057588A3 (en) * | 2011-10-17 | 2014-03-27 | Cella Energy Limited | Spacecraft and spacesuit shield |
| US9093184B2 (en) | 2011-10-17 | 2015-07-28 | Cella Acquisition Limited | Spacecraft shield |
| WO2014121717A1 (en) * | 2013-02-11 | 2014-08-14 | Industrial Technology Research Institute | Radiation shielding composite material including radiation absorbing material and method for preparing the same |
| CN104704577A (en) * | 2013-02-11 | 2015-06-10 | 财团法人工业技术研究院 | Radiation shielding composite material including radiation absorbing material and method for preparing the same |
| CN103183928A (en) * | 2013-03-21 | 2013-07-03 | 中国船舶重工集团公司第七一九研究所 | High-temperature resisting shielding material with neutron shielding effect |
| CN104130615A (en) * | 2014-07-21 | 2014-11-05 | 关锦池 | Neutron radiation resistant coating |
| CN104310399A (en) * | 2014-10-09 | 2015-01-28 | 东莞理工学院 | Processing technology for boron carbide neutron absorber |
| CN105645865B (en) * | 2015-12-30 | 2018-06-08 | 上海师范大学 | A kind of rare earth anti-nuclear radiation mortar and preparation method thereof |
| CN105645865A (en) * | 2015-12-30 | 2016-06-08 | 上海师范大学 | Rare-earth nuclear-radiation-proof mortar and preparation method of rare-earth nuclear-radiation-proof mortar |
| CN107164755A (en) * | 2017-05-18 | 2017-09-15 | 江苏广川线缆股份有限公司 | The spraying method of neutron absorption composite material on a kind of stainless steel substrate |
| CN107164755B (en) * | 2017-05-18 | 2019-04-12 | 江苏广川线缆股份有限公司 | The spraying method of neutron absorption composite material on a kind of stainless steel substrate |
| CN107555850A (en) * | 2017-07-21 | 2018-01-09 | 东莞中子科学中心 | A kind of composite for neutron shielding and its preparation method and application |
| CN107555850B (en) * | 2017-07-21 | 2020-11-10 | 东莞中子科学中心 | Composite material for neutron radiation protection and preparation method and application thereof |
| CN107312439A (en) * | 2017-07-24 | 2017-11-03 | 合肥思敬齐化工材料有限责任公司 | A kind of aqueous polyurethane coating of anti-neutron irradiation and preparation method thereof |
| CN107312439B (en) * | 2017-07-24 | 2019-10-18 | 合肥思敬齐化工材料有限责任公司 | A kind of aqueous polyurethane coating and preparation method thereof of anti-neutron irradiation |
| CN108863442A (en) * | 2018-06-13 | 2018-11-23 | 南京航空航天大学 | A kind of neutron shield composite material and preparation method |
| CN113345615A (en) * | 2021-05-31 | 2021-09-03 | 中国工程物理研究院材料研究所 | Paraffin/boron carbide neutron protection composite material and preparation method thereof |
| CN113345615B (en) * | 2021-05-31 | 2022-12-27 | 中国工程物理研究院材料研究所 | Paraffin/boron carbide neutron protection composite material and preparation method thereof |
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Application publication date: 20110427 |