CN102995389A - Method for acquiring neutron protective fabric by doping rare earth element - Google Patents
Method for acquiring neutron protective fabric by doping rare earth element Download PDFInfo
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- CN102995389A CN102995389A CN2012105348553A CN201210534855A CN102995389A CN 102995389 A CN102995389 A CN 102995389A CN 2012105348553 A CN2012105348553 A CN 2012105348553A CN 201210534855 A CN201210534855 A CN 201210534855A CN 102995389 A CN102995389 A CN 102995389A
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- 229910052761 rare earth metal Inorganic materials 0.000 title claims abstract description 54
- 239000004744 fabric Substances 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 26
- 230000001681 protective effect Effects 0.000 title claims abstract description 11
- 239000011858 nanopowder Substances 0.000 claims abstract description 65
- 239000004753 textile Substances 0.000 claims abstract description 46
- 150000002910 rare earth metals Chemical class 0.000 claims abstract description 29
- 238000010894 electron beam technology Methods 0.000 claims abstract description 14
- -1 rare earth salts Chemical class 0.000 claims abstract description 10
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 claims description 14
- PLDDOISOJJCEMH-UHFFFAOYSA-N neodymium(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Nd+3].[Nd+3] PLDDOISOJJCEMH-UHFFFAOYSA-N 0.000 claims description 14
- MMKQUGHLEMYQSG-UHFFFAOYSA-N oxygen(2-);praseodymium(3+) Chemical compound [O-2].[O-2].[O-2].[Pr+3].[Pr+3] MMKQUGHLEMYQSG-UHFFFAOYSA-N 0.000 claims description 14
- 229910003447 praseodymium oxide Inorganic materials 0.000 claims description 14
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 claims description 12
- 238000012986 modification Methods 0.000 claims description 11
- 230000004048 modification Effects 0.000 claims description 11
- 239000007822 coupling agent Substances 0.000 claims description 7
- 238000001556 precipitation Methods 0.000 claims description 6
- 238000000227 grinding Methods 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims description 5
- 150000004645 aluminates Chemical class 0.000 claims description 4
- 239000002270 dispersing agent Substances 0.000 claims description 4
- FQENQNTWSFEDLI-UHFFFAOYSA-J sodium diphosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O FQENQNTWSFEDLI-UHFFFAOYSA-J 0.000 claims description 4
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims description 4
- 229940048086 sodium pyrophosphate Drugs 0.000 claims description 4
- 235000019818 tetrasodium diphosphate Nutrition 0.000 claims description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical group [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- 229910052727 yttrium Inorganic materials 0.000 claims description 3
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 claims description 3
- 229910052688 Gadolinium Inorganic materials 0.000 claims description 2
- 229910002651 NO3 Inorganic materials 0.000 claims description 2
- 229910052779 Neodymium Inorganic materials 0.000 claims description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims description 2
- 229910052777 Praseodymium Inorganic materials 0.000 claims description 2
- UIWYJDYFSGRHKR-UHFFFAOYSA-N gadolinium atom Chemical compound [Gd] UIWYJDYFSGRHKR-UHFFFAOYSA-N 0.000 claims description 2
- 229910001938 gadolinium oxide Inorganic materials 0.000 claims description 2
- 229940075613 gadolinium oxide Drugs 0.000 claims description 2
- CMIHHWBVHJVIGI-UHFFFAOYSA-N gadolinium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[Gd+3].[Gd+3] CMIHHWBVHJVIGI-UHFFFAOYSA-N 0.000 claims description 2
- 229910052746 lanthanum Inorganic materials 0.000 claims description 2
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 claims description 2
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 claims description 2
- PUDIUYLPXJFUGB-UHFFFAOYSA-N praseodymium atom Chemical compound [Pr] PUDIUYLPXJFUGB-UHFFFAOYSA-N 0.000 claims description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L sulfate group Chemical group S(=O)(=O)([O-])[O-] QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 2
- 238000000498 ball milling Methods 0.000 claims 2
- 239000003795 chemical substances by application Substances 0.000 claims 2
- 239000006185 dispersion Substances 0.000 claims 1
- 230000005611 electricity Effects 0.000 claims 1
- 235000019982 sodium hexametaphosphate Nutrition 0.000 claims 1
- 235000019832 sodium triphosphate Nutrition 0.000 claims 1
- 238000005118 spray pyrolysis Methods 0.000 claims 1
- 230000003068 static effect Effects 0.000 claims 1
- 230000005855 radiation Effects 0.000 abstract description 38
- 210000002381 plasma Anatomy 0.000 abstract 2
- 239000000835 fiber Substances 0.000 description 24
- 239000000463 material Substances 0.000 description 12
- 238000003701 mechanical milling Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 8
- 238000009987 spinning Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 239000007921 spray Substances 0.000 description 6
- 239000002131 composite material Substances 0.000 description 5
- 238000000354 decomposition reaction Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 238000011160 research Methods 0.000 description 5
- 239000004743 Polypropylene Substances 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- RNYFGGMJZRTZKO-UHFFFAOYSA-N oxo(oxogadoliniooxy)gadolinium Chemical compound O=[Gd]O[Gd]=O RNYFGGMJZRTZKO-UHFFFAOYSA-N 0.000 description 4
- 229910052580 B4C Inorganic materials 0.000 description 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 3
- 239000006096 absorbing agent Substances 0.000 description 3
- 229910052796 boron Inorganic materials 0.000 description 3
- INAHAJYZKVIDIZ-UHFFFAOYSA-N boron carbide Chemical compound B12B3B4C32B41 INAHAJYZKVIDIZ-UHFFFAOYSA-N 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000002759 woven fabric Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000007334 copolymerization reaction Methods 0.000 description 2
- 238000005342 ion exchange Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000003607 modifier Substances 0.000 description 2
- 229910001172 neodymium magnet Inorganic materials 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 229910000162 sodium phosphate Inorganic materials 0.000 description 2
- 239000001488 sodium phosphate Substances 0.000 description 2
- 239000013638 trimer Substances 0.000 description 2
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical group [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 238000009941 weaving Methods 0.000 description 2
- NGDQQLAVJWUYSF-UHFFFAOYSA-N 4-methyl-2-phenyl-1,3-thiazole-5-sulfonyl chloride Chemical compound S1C(S(Cl)(=O)=O)=C(C)N=C1C1=CC=CC=C1 NGDQQLAVJWUYSF-UHFFFAOYSA-N 0.000 description 1
- 102000040350 B family Human genes 0.000 description 1
- 108091072128 B family Proteins 0.000 description 1
- 239000002028 Biomass Substances 0.000 description 1
- 241000668709 Dipterocarpus costatus Species 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001639 boron compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000012792 core layer Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- VHLVYXVETXCOPI-UHFFFAOYSA-N gadolinium sulfuric acid Chemical compound [Gd].S(O)(O)(=O)=O VHLVYXVETXCOPI-UHFFFAOYSA-N 0.000 description 1
- 230000005251 gamma ray Effects 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000005802 health problem Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 229910052747 lanthanoid Inorganic materials 0.000 description 1
- 150000002602 lanthanoids Chemical class 0.000 description 1
- ZHIMWHGEMSAQBS-UHFFFAOYSA-N lanthanum sulfuric acid Chemical compound [La].S(O)(O)(=O)=O ZHIMWHGEMSAQBS-UHFFFAOYSA-N 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 229940046892 lead acetate Drugs 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- CFYGEIAZMVFFDE-UHFFFAOYSA-N neodymium(3+);trinitrate Chemical compound [Nd+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O CFYGEIAZMVFFDE-UHFFFAOYSA-N 0.000 description 1
- 238000005025 nuclear technology Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 229920000307 polymer substrate Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- YWECOPREQNXXBZ-UHFFFAOYSA-N praseodymium(3+);trinitrate Chemical compound [Pr+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O YWECOPREQNXXBZ-UHFFFAOYSA-N 0.000 description 1
- 238000001959 radiotherapy Methods 0.000 description 1
- 229910052706 scandium Inorganic materials 0.000 description 1
- SIXSYDAISGFNSX-UHFFFAOYSA-N scandium atom Chemical compound [Sc] SIXSYDAISGFNSX-UHFFFAOYSA-N 0.000 description 1
- 229910052979 sodium sulfide Inorganic materials 0.000 description 1
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- KEDRWRQLPFRFPW-UHFFFAOYSA-N sulfuric acid yttrium Chemical compound [Y].S(O)(O)(=O)=O KEDRWRQLPFRFPW-UHFFFAOYSA-N 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 238000002166 wet spinning Methods 0.000 description 1
Landscapes
- Chemical Or Physical Treatment Of Fibers (AREA)
Abstract
本发明公开了一种通过掺杂稀土元素获得中子防护面料的方法，它包括以下步骤：（1）a、先将纺织品经过电子束或等离子体预辐照处理，再将稀土纳米粉体接枝到处理过的纺织品上；或b、将纺织品中掺杂稀土纳米粉体或稀土盐类，经过电子束或等离子体共辐照纺织品上；（2）最后进行焙烘即可获得中子防护面料。本发明通过掺杂稀土元素获得柔性的稀土中子防护面料，对慢中子、热中子、中能中子防护有效，尤其对快中子防护明显有效。本发明将稀土元素接枝到纺织品上，实现柔性的中子防护，对解决中子辐射防护问题和提升纺织品和稀土附加值都有重要意义。The invention discloses a method for obtaining neutron protective fabrics by doping rare earth elements, which includes the following steps: (1) a. First, the textiles are pre-irradiated with electron beams or plasma, and then the rare earth nano-powders are contacted. branch onto the treated textiles; or b, dope the textiles with rare earth nano-powders or rare earth salts, and co-irradiate the textiles with electron beams or plasmas; (2) finally bake to obtain neutron protection fabric. The invention obtains flexible rare-earth neutron protection fabric by doping rare-earth elements, which is effective for protection against slow neutrons, thermal neutrons and neutrons, and is especially effective for protection against fast neutrons. The invention grafts rare earth elements onto textiles to realize flexible neutron protection, which is of great significance for solving the problem of neutron radiation protection and improving the added value of textiles and rare earths.
Description
Technical field
The present invention relates to the NEUTRON PROTECTION fabric, refer to particularly a kind of method that obtains the NEUTRON PROTECTION fabric by doped with rare-earth elements.
Background technology
In the situation that day by day crisis of fossil energy, the cry of development clean energy resource is more and more higher.Yet the clean energy resourcies such as tide energy, solar energy, wind energy, biomass energy are the energy as a supplement.Nuclear energy is only following main energy sources.Therefore, the nuclear energy protection, particularly personnel protection is an important job.In the protection of radiation, the protection of neutron is relatively more difficult technology, and reason is that neutron is not charged, acts on hardly with electronics, is not easy to be stopped by material the protection difficulty.
The research of fabric type shielding material starts from 20 century 70s, nowadays has the dry goods shielding material of number of different types, and multiplex in preparation radiation protection clothes.The beginning of the eighties in last century, the scientific research personnel of the former Soviet Union is object with viscose fiber fabric, by to the polyacrylonitrile grafting, then process graft copolymerization material with sodium sulfide solution, the fabric that is modified with the lead acetate solution-treated is at last made protective clothing, this protective clothing shield effectiveness is good, but technique is complicated, produces difficulty large.
The ion-exchange type properties that Japan is developed into be ionic adsorption with boron, lithium or other shielding material on fiber, thereby make fiber have the neutron irradiation function of shielding.Because adsorbance is limited and washing the time very easily comes off, therefore shield effectiveness is relatively poor.Japan improved original technology again afterwards, made the compound of ion-exchange fibre absorption lithium or boron, thereby had improved fabric neutron shield rate.
In known external various properties, take the Development Level of toray company as best.It adopts the composite spinning method to produce anti-neutron irradiation composite fibre.Specific practice be neutron absorber material and high polymer after melting mixing on the kneader as core layer component, carry out melt composite spinning take pure high polymer as cortex, the gained fiber is skin-core structure, makes the fiber with some strength through xeothermic or damp and hot stretching.But this fibre spinning equipment is complicated, invests larger.
Japan has also reported the preparation method of another kind of fibrous NEUTRON PROTECTION thing.The high polymeric solution that contains neutron absorber material under high pressure sprays spinning fibre, has improved the thermal neutron shielding rate of properties.But this kind fibre strength is low, and extension at break is larger, is difficult for processing.The fiber that this method makes is exposed to fiber surface owing to neutron absorber material, thereby is washing, very easily losing when being rubbed, and the neutron-absorbing performance is reduced.Behind the Japanese also compound powder and polyvinyl resin copolymerization with lithium and boron, adopt melting core-sheath spinning technique to develop the properties material.Can be processed into woven fabric and non-weaving cloth, fixed heavily is 430 g/m
2The thermal neutron shielding rate of woven fabric can reach 40%, be usually used in the indoor doctor of hospital's radiotherapy and patient's protection.
The radiation protection technology company (RST) of U.S. Miami works out a kind of technology, and polyethylene (PE) and polyvinyl chloride (PVC) are carried out modification, to form a kind of material that can prevent nuclear radiation.With certain untold process polymer substrate is processed, made it to produce a kind of electron resonance effect that can radiation-absorbing.Treated matrix sticks between the natural or synthetic two-layer nonwoven, and the radiation proof safety clothes of making like this take light and handy more than 5 times than traditional lead.The trade name of this cloth is Demron, and the Georgia Institute of Technology in Columbia University, New York and Atlanta tests respectively, and high energy β particle is had fabulous shield effectiveness, can mask 50% at least for the gamma-rays of 130 keV.
China is since the research of the anti-neutron macromolecular material seventies in last century, and Tianjin was spun institute and succeeded in developing properties in May, 1987.This fiber has preferably gamma ray shielding function.Melt-spun has been made the anti-neutron of core-skin type, Effect of X-Ray Shielding Fibre after the blend such as domestic employing boron compound, heavy metal compound and polypropylene.Boron carbide content is up to 35% in the fiber, and fibre strength can reach 23～27CN/tex, and elongation at break reaches 20～40%, can be processed into knitted fabric, woven fabric and non-weaving cloth, is used in around the atomic reactor, and the neutron shielding shielding rate is reached more than 44%.
The boron carbide micro powder of the employing polypropylene such as Wang Xuechen and Different Weight is raw material, inquired into the feasibility by melt blending spinning technique development properties and fabric, and the rheological property of co-mixing system and the factor that affects rheological property have been discussed.Prepared material is suitable for protective ware, curtain for door or window and covering packing etc.
Shandongs etc. utilize dynamic viscoelastometer etc. to test and use B
4The properties of C/PP composite spinning and the dynamic mechanical after as-spun fibre and the stretching thereof.Research is found, prevents neutron irradiation as-spun fibre [E] value behind glass transition region． than the height of PP fiber, and heat resistance increases.The fracture strength of fiber and [E] value raises in drawing process, and extension at break descends.Fault of construction in the fiber reduces, and can keep skin-core structure.When surpassing 415 times of stretchings, [E] of fiber value reduces again.
Yin Jin sources etc. are prepared a kind of properties take polyvinyl alcohol and boron carbide as main raw material adopts wet spinning technology.They have studied the processing molding method of this fiber, and have tested the performance of fiber.The result of study demonstration, properties has very strong thermal neutron function of shielding, and intermediate neutron is also had certain function of shielding, and its protection effect has reached external similar research level.
Wenjun YANGs etc. have prepared NdFeB/PE rare earth high polymer shielding composite, wherein the NdFeB powder is submicron order, its shielding properties has entrusted Chinese Nuclear Power Design Academy to detect, the result shows has good shield effectiveness to neutron and gamma-rays, particularly remarkable to the assimilation effect of thermal neutron.
At present, neutron radiation protective clothing still rests in the protection of centering low energy neutron, and the protection efficiency of the larger neutron current of the protection of hot fast neutron or dosage is not reached people far away to the requirement of NEUTRON PROTECTION, and best also only has about 44%.
Current, the application of rare earths scope is very wide, but still few in the application of radiation protection field, rare earth compound is grafted to the fabric that obtains anti-neutron on the fabric and there is not yet report.
Summary of the invention
Purpose of the present invention will overcome the existing deficiency of prior art exactly, and a kind of method that obtains the NEUTRON PROTECTION fabric by doped with rare-earth elements is provided.
For achieving the above object, the present invention obtains the method for NEUTRON PROTECTION fabric by doped with rare-earth elements, and it may further comprise the steps:
(1) a, first textiles is processed through electron beam or plasma pre-irradiation, again the rare earth nano powder is grafted on the textiles of processing;
Or b, with rare earth doped nano-powder or rare earth salts in the textiles, through on electron beam or the plasma mutual radiation textiles;
Described rare earth nano powder is the nano-powder of lanthana, yittrium oxide, neodymia, praseodymium oxide or gadolinium oxide, and described rare earth salts is sulfate or the nitrate of lanthanum, yttrium, neodymium, praseodymium, gadolinium;
(2) bake at last and can obtain the NEUTRON PROTECTION fabric.
The preparation of the rare earth nano powder described in the step 1) of the present invention takes first the precipitation method or spray heating decomposition to make the rare earth nano powder,
0.2 ~ 0.8% the dispersant account for rare earth nano powder weight will be added again in the rare earth nano powder, described dispersant is sodium phosphate trimer, calgon or sodium pyrophosphate, carries out surface modification in mechanical milling process, removes surface energy, eliminate surface electrostatic, improve its dispersiveness;
Or in the rare earth nano powder, add 0.4 ~ 1% the surface modifier account for rare earth nano powder weight, described surface modifier is titanate coupling agent or aluminate coupling agent, by the grinding distribution of mechanical milling process, rare earth nano powder granule modifying surface is processed, improve its dispersiveness;
To obtain required rare earth nano powder.
The energy of the generation of the accelerator that pre-irradiation or mutual radiation are used is 5 ~ 10Mev, and radiation dose rate is 80 ~ 100Gy.
Rare earth element kind and consumption among the present invention are unrestricted, and the kind of textiles and thickness are also unrestricted.
Rare earth element is positioned at the III B family of the periodic table of elements.Comprise scandium (So), yttrium (Y) and lanthanide series (Ln) be totally 17 elements.Rare earth element is owing to having larger absorption cross-section to neutron, so rare earth element is one as NEUTRON PROTECTION and well selects.Rare earth element is used for protective clothing, produces the efficient personnel protection wearing fabric of comparison lightweight, thus the health problem that the radiation of minimizing nuclear technology practitioner and the suffered neutron of the public brings.The rare earth powder is high owing to containing rare earth composition, makes nano-powder, is grafted on the textiles, then can obtain flexible neutron shielding fabric, thereby improves protection effects such as thermal neutron, slow neutron, intermediate neutron, fast neutrons.
Beneficial effect of the present invention is: the present invention obtains flexible rare earth NEUTRON PROTECTION fabric by doped with rare-earth elements, to slow neutron, thermal neutron, intermediate neutron protection effectively, and especially to fast neutron protection significant effective.The present invention is grafted to rare earth element on the textiles, realizes flexible NEUTRON PROTECTION, and is all significant to solving neutron shielding problem and lifting textiles and rare earth added value.
The specific embodiment
The present invention is described in further detail below in conjunction with specific embodiment.
Embodiment 1
(1) take first the precipitation method to make the lanthana nano-powder, 0.2% the sodium pyrophosphate account for lanthana nano-powder weight will be added again in the lanthana nano-powder, in mechanical milling process, carry out surface modification, remove surface energy, eliminate surface electrostatic, improve its dispersiveness, to obtain required lanthana nano-powder;
(2) first textiles is processed through electron beam or plasma pre-irradiation, again the lanthana nano-powder that makes is grafted on the textiles of processing; The energy of the generation of the accelerator that irradiation is used is 5Mev, and radiation dose rate is 80Gy/s;
(3) bake at last and can obtain the NEUTRON PROTECTION fabric.
Embodiment 2
(1) take first the precipitation method to make yttrium oxide nano-powder, 0.4% the sodium phosphate trimer account for yttrium oxide nano-powder weight will be added again in the yttrium oxide nano-powder, in mechanical milling process, carry out surface modification, remove surface energy, eliminate surface electrostatic, improve its dispersiveness, to obtain required yttrium oxide nano-powder;
(2) first textiles is processed through electron beam or plasma pre-irradiation, again the yttrium oxide nano-powder that makes is grafted on the textiles of processing; The energy of the generation of the accelerator that irradiation is used is 5Mev, and radiation dose rate is 80Gy/s;
(3) bake at last and can obtain the NEUTRON PROTECTION fabric.
Embodiment 3
(1) take first the precipitation method to make the neodymia nano-powder, 0.8% the calgon account for neodymia nano-powder weight will be added again in the neodymia nano-powder, in mechanical milling process, carry out surface modification, remove surface energy, eliminate surface electrostatic, improve its dispersiveness, to obtain required neodymia nano-powder;
(2) with the neodymia nano-powder that mixes and make in the textiles, on plasma mutual radiation textiles; The energy of the generation of the accelerator that irradiation is used is 8Mev, and radiation dose rate is 90Gy/s;
(3) bake at last and can obtain the NEUTRON PROTECTION fabric.
Embodiment 4
(1) take first spray heating decomposition to make the praseodymium oxide nano-powder, 0.7% the calgon account for praseodymium oxide nano-powder weight will be added again in the praseodymium oxide nano-powder, in mechanical milling process, carry out surface modification, remove surface energy, eliminate surface electrostatic, improve its dispersiveness, to obtain required praseodymium oxide nano-powder;
(2) with the praseodymium oxide nano-powder that mixes and make in the textiles, on plasma mutual radiation textiles; The energy of the generation of the accelerator that irradiation is used is 8Mev, and radiation dose rate is 90Gy/s;
(3) bake at last and can obtain the NEUTRON PROTECTION fabric.
Embodiment 5
(1) take first spray heating decomposition to make the gadolinium oxide nano-powder, 0.3% the sodium pyrophosphate account for gadolinium oxide nano-powder weight will be added again in the gadolinium oxide nano-powder, in mechanical milling process, carry out surface modification, remove surface energy, eliminate surface electrostatic, improve its dispersiveness, to obtain required praseodymium oxide nano-powder;
(2) with the gadolinium oxide nano-powder that mixes and make in the textiles, on plasma mutual radiation textiles; The energy of the generation of the accelerator that irradiation is used is 8Mev, and radiation dose rate is 90Gy/s;
(3) bake at last and can obtain the NEUTRON PROTECTION fabric.
Embodiment 6
(1) take first spray heating decomposition to make yttrium oxide nano-powder, in yttrium oxide nano-powder, add again 0.6% the titanate coupling agent account for yttrium oxide nano-powder weight, grinding distribution by mechanical milling process, the yttrium oxide nano-powder particle surface is carried out modification, improve its dispersiveness, to obtain required yttrium oxide nano-powder;
(2) with the yttrium oxide nano-powder that mixes and make in the textiles, on plasma mutual radiation textiles; The energy of the generation of the accelerator that irradiation is used is 8Mev, and radiation dose rate is 90Gy/s;
(3) bake at last and can obtain the NEUTRON PROTECTION fabric.
Embodiment 7
(1) take first spray heating decomposition to make the praseodymium oxide nano-powder, in the praseodymium oxide nano-powder, add again 0.4% the aluminate coupling agent account for praseodymium oxide nano-powder weight, grinding distribution by mechanical milling process, praseodymium oxide nano-powder particle surface is carried out modification, improve its dispersiveness, to obtain required praseodymium oxide nano-powder;
(2) with the praseodymium oxide nano-powder that mixes and make in the textiles, on plasma mutual radiation textiles; The energy of the generation of the accelerator that irradiation is used is 8Mev, and radiation dose rate is 90Gy/s;
(3) bake at last and can obtain the NEUTRON PROTECTION fabric.
Embodiment 8
(1) take first the precipitation method to make the neodymia nano-powder, in the neodymia nano-powder, add again 1% the aluminate coupling agent account for neodymia nano-powder weight, grinding distribution by mechanical milling process, neodymia nano-powder particle surface is carried out modification, improve its dispersiveness, to obtain required neodymia nano-powder;
(2) with the neodymia nano-powder that mixes and make in the textiles, on plasma mutual radiation textiles; The energy of the generation of the accelerator that irradiation is used is 8Mev, and radiation dose rate is 90Gy/s;
(3) bake at last and can obtain the NEUTRON PROTECTION fabric.
Embodiment 9
(1) with doped sulfuric acid gadolinium in the textiles, on electron beam mutual radiation textiles; The beam energy of the generation of the accelerator that irradiation is used is 4Mev, and line is 2 * 10
-6A, radiation dose rate are 100Gy/s;
(2) bake at last and can obtain the NEUTRON PROTECTION fabric.
Embodiment 10
(1) with doped sulfuric acid lanthanum in the textiles, on electron beam mutual radiation textiles; The beam energy of the generation of the accelerator that irradiation is used is 4Mev, and line is 2 * 10
-6A, radiation dose rate are 100Gy/s;
(2) bake at last and can obtain the NEUTRON PROTECTION fabric.
Embodiment 11
(1) with doped sulfuric acid yttrium in the textiles, on electron beam mutual radiation textiles; The beam energy of the generation of the accelerator that irradiation is used is 4Mev, and line is 2 * 10
-6A, radiation dose rate are 100Gy/s;
(2) bake at last and can obtain the NEUTRON PROTECTION fabric.
Embodiment 12
(1) with the neodymium nitrate that mixes in the textiles, on electron beam mutual radiation textiles; The beam energy of the generation of the accelerator that irradiation is used is 4Mev, and line is 2 * 10
-6A, radiation dose rate are 100Gy/s;
(2) bake at last and can obtain the NEUTRON PROTECTION fabric.
Embodiment 13
(1) with the praseodymium nitrate that mixes in the textiles, on electron beam mutual radiation textiles; The beam energy of the generation of the accelerator that irradiation is used is 4Mev, and line is 2 * 10
-6A, radiation dose rate are 100Gy/s;
(2) bake at last and can obtain the NEUTRON PROTECTION fabric.
Embodiment 14
(1) with the yttrium nitrate that mixes in the textiles, on electron beam mutual radiation textiles; The beam energy of the generation of the accelerator that irradiation is used is 4Mev, and line is 2 * 10
-6A, radiation dose rate are 100Gy/s;
(2) bake at last and can obtain the NEUTRON PROTECTION fabric.
Effect
The prepared NEUTRON PROTECTION fabric of the present invention is carried out the NEUTRON PROTECTION test, and the NEUTRON PROTECTION fabric is made the fabric of 1 millimeters thick of doped with rare-earth elements.Utilize fast neutron (the fast neutron energy reaches more than the million electro-volt) irradiation NEUTRON PROTECTION fabric, obtained the protection effect near 10%.
That is to say, as long as thickening and optimization grafted rare earth powder scheme, the protection effect to fast neutron that obtains to be better than more than 50% is feasible.
And the thinner flexible protective of fast neutron was considered to impossible in the past.This shows according to the inventive method is that the fabric that can obtain has good result.
Claims (3)
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210534855.3A CN102995389B (en) | 2012-12-11 | 2012-12-11 | Method for acquiring neutron protective fabric by doping rare earth element |
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| CN201210534855.3A CN102995389B (en) | 2012-12-11 | 2012-12-11 | Method for acquiring neutron protective fabric by doping rare earth element |
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| CN102995389A true CN102995389A (en) | 2013-03-27 |
| CN102995389B CN102995389B (en) | 2014-10-22 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103806273A (en) * | 2014-02-13 | 2014-05-21 | 北京化工大学常州先进材料研究院 | Method for preparing fluorescent nanofibers based on photo-grafting surface modification |
| CN104032403A (en) * | 2014-06-19 | 2014-09-10 | 宜春学院 | Rare-earth metal oxide/polyacrylonitrile (PAN) composite fiber and preparation method thereof |
| CN107338640A (en) * | 2017-06-20 | 2017-11-10 | 江门职业技术学院 | A kind of polyester cotton fabric rare earth multifunctional composite finishing agent and preparation method thereof |
| CN116001393A (en) * | 2023-03-24 | 2023-04-25 | 汕头市金南辉纺织实业有限公司 | Super-soft elastic fabric based on three-dimensional multidirectional knitting and preparation method and application thereof |
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| JPH02297098A (en) * | 1989-05-11 | 1990-12-07 | Kanebo Ltd | Neutron shieldable acrylic synthetic fiber and production thereof |
| CN1088636A (en) * | 1992-12-19 | 1994-06-29 | 天津纺织工学院 | Neutron and gamma ray radiation shield fibre and manufacture method thereof |
| CN1153389A (en) * | 1996-08-13 | 1997-07-02 | 张启馨 | Mixed lanthanide contg. Shield composite material for medical X-ray 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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| JPH02297098A (en) * | 1989-05-11 | 1990-12-07 | Kanebo Ltd | Neutron shieldable acrylic synthetic fiber and production thereof |
| CN1088636A (en) * | 1992-12-19 | 1994-06-29 | 天津纺织工学院 | Neutron and gamma ray radiation shield fibre and manufacture method thereof |
| CN1153389A (en) * | 1996-08-13 | 1997-07-02 | 张启馨 | Mixed lanthanide contg. Shield composite material for medical X-ray 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 (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103806273A (en) * | 2014-02-13 | 2014-05-21 | 北京化工大学常州先进材料研究院 | Method for preparing fluorescent nanofibers based on photo-grafting surface modification |
| CN103806273B (en) * | 2014-02-13 | 2015-12-30 | 北京化工大学常州先进材料研究院 | A kind of method preparing fluorescent nano-fiber based on photo-grafting surface modification |
| CN104032403A (en) * | 2014-06-19 | 2014-09-10 | 宜春学院 | Rare-earth metal oxide/polyacrylonitrile (PAN) composite fiber and preparation method thereof |
| CN104032403B (en) * | 2014-06-19 | 2015-12-30 | 宜春学院 | Rare-earth oxide/polyacrylonitrile composite fiber and preparation method thereof |
| CN107338640A (en) * | 2017-06-20 | 2017-11-10 | 江门职业技术学院 | A kind of polyester cotton fabric rare earth multifunctional composite finishing agent and preparation method thereof |
| CN116001393A (en) * | 2023-03-24 | 2023-04-25 | 汕头市金南辉纺织实业有限公司 | Super-soft elastic fabric based on three-dimensional multidirectional knitting and preparation method and application thereof |
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