CN103093844B - For the application of the composite polyethylene material of the radiation proof doped carbon nanometer pipe of space charged particle and nanometer tantalum - Google Patents
For the application of the composite polyethylene material of the radiation proof doped carbon nanometer pipe of space charged particle and nanometer tantalum Download PDFInfo
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Abstract
For the application of the composite polyethylene material of the radiation proof doped carbon nanometer pipe of space charged particle and nanometer tantalum, relate to the application for the radiation proof compound substance of space charged particle.The present invention will solve the radiation protection material that existing radiation protection material method prepares, there is density and cause operating weight large greatly in aluminium protective layer, adopting tygon as also existing during radiation protection material because its thermal stability is poor, restricting the problem of its usable range.For the composite polyethylene material of the radiation proof doped carbon nanometer pipe of space charged particle and nanometer tantalum, be prepared from by polyvinyl resin, carbon nano-tube, nanometer tantalum and coupling agent.Preparation: one, carbon nano-tube, nanometer tantalum and coupling agent are mixed to get modified carbon nano-tube and nanometer tantalum; Two, hot pressing after mixed and modified carbon nano-tube and nanometer tantalum and polyvinyl resin.Material is for protective zone proton and electron irradiation.Radiation protection field is applicable in the present invention.
Description
Technical field
The present invention relates to the field of the application for the radiation proof compound substance of space charged particle.
Background technology
For the design of spacecraft, space charged particle radiation protection material is important research topic all the time, and traditional radiation protection material is based on aluminium.In order to reach radiation-proof effect, must increase the thickness of aluminium protective layer, thus the weight of spacecraft is increased, spacecraft lightweight problem is the hot issue that designers pay close attention to always.Research shows, hydrogeneous light element is more more effective than heavy element in opposing radiation damage, that is radiation protection efficiency along with the reduction of atomic number be increase trend.In theory, liquid hydrogen has best protection efficiency, but infeasible during practical application, can using the hydrogen content of material as the standard weighing material protection efficiency.
Containing carbon atom, two hydrogen atoms in polyethylene molecule, there is very high hydrogen richness, therefore there is higher radiation protection efficiency.But, existing radiation protection material method prepare at polythene radiation protection material time, because its thermal stability is poor, serious its usable range of restriction.
Summary of the invention
The present invention will solve the radiation protection material that existing radiation protection material method prepares, there is density and cause greatly the weight of use large in aluminium protective layer, adopt polythene material as also existing because its thermal stability is poor during radiation protection material, the problem of serious its usable range of restriction, and the application providing the composite polyethylene material for the radiation proof doped carbon nanometer pipe of space charged particle and nanometer tantalum.
For the composite polyethylene material of the radiation proof doped carbon nanometer pipe of space charged particle and nanometer tantalum, be prepared from by the coupling agent of the polyvinyl resin of 1 part ~ 100 parts, the carbon nano-tube of 1 part ~ 10 parts, the nanometer tantalum of 5 parts ~ 50 parts and 0.5 part ~ 20 parts by weight.
For the preparation method of the composite polyethylene material of the radiation proof doped carbon nanometer pipe of space charged particle and nanometer tantalum, specifically carry out according to the following steps:
One, the ethanol of the polyvinyl resin of 1 part ~ 100 parts, the carbon nano-tube of 1 part ~ 10 parts, the nanometer tantalum of 5 parts ~ 50 parts, the coupling agent of 0.5 part ~ 20 parts and 2 parts ~ 5 parts is taken by weight;
Two, after carbon nano-tube step one taken and nanometer tantalum mix, join in the ethanol that step one takes, dispersed, obtain the mixed liquor of homodisperse carbon nano-tube and nanometer tantalum;
Three, in the homodisperse carbon nano-tube obtained to step 2 and the mixed liquor of nanometer tantalum, the coupling agent that step one takes is added, at the temperature of 50 DEG C ~ 140 DEG C, with the stir speed (S.S.) of 80r/min ~ 120r/min, stir 1h ~ 15h, then, filter, dry, obtain solid mixture;
Four, the solid mixture that polyvinyl resin step one taken and step 3 obtain mixes, then, under the mechanical pressure of the temperature of 175 DEG C ~ 240 DEG C and 5MPa ~ 45MPa, compacting 1min ~ 40min, namely obtains the composite polyethylene material for the radiation proof doped carbon nanometer pipe of space charged particle and nanometer tantalum.
For the application of the composite polyethylene material of the radiation proof doped carbon nanometer pipe of space charged particle and nanometer tantalum, be that this material is used for protective zone proton and electron irradiation.
The present invention has the following advantages:
One, the radiation protection material for preparing of the preparation method of the composite polyethylene material for the radiation proof doped carbon nanometer pipe of space charged particle and nanometer tantalum provided by the invention, due to employing is that tygon is as radiation protection material, its density is reduced greatly, effectively solves the drawback that aluminium protective layer weight is large;
Two, the radiation protection material for preparing of the preparation method of the composite polyethylene material for the radiation proof doped carbon nanometer pipe of space charged particle and nanometer tantalum provided by the invention, owing to being doped with carbon nano-tube and nanometer tantalum, composite polyethylene material is greatly improved relative to pure poly thermal stability, improves 10% ~ 40%;
Three, the radiation protection material for preparing of the preparation method of the composite polyethylene material for the radiation proof doped carbon nanometer pipe of space charged particle and nanometer tantalum provided by the invention is when being applied to protective zone proton and electron irradiation, after electron irradiation, detector absorbs through the dosage after material, reduce 0.1 times ~ 0.5 times relative to fine aluminium, protection proton efficiency improves 35% ~ 65% relative to fine aluminium.
Accompanying drawing explanation
Fig. 1 is that the radiation protection material I that obtains of test one and existing pure tygon carry out thermogravimetric analysis comparison diagram.Wherein, solid line is radiation protection material I, and dotted line is pure tygon.
Fig. 2 is that the radiation protection material I that obtains of test one and existing fine aluminium carry out electron irradiation comparison diagram.Wherein, solid line is radiation protection material I, and dotted line is fine aluminium.
Fig. 3 is that the radiation protection material II that obtains of test one and existing fine aluminium carry out proton irradiation protection comparison diagram.Wherein, solid line is radiation protection material II, and dotted line is fine aluminium.
Fig. 4 is that the radiation protection material II that obtains of test one and existing pure tygon carry out thermogravimetric analysis comparison diagram.Wherein, solid line is radiation protection material II, and dotted line is pure tygon.
Fig. 5 is that the radiation protection material II that obtains of test one and existing fine aluminium carry out electron irradiation comparison diagram.Wherein, solid line is radiation protection material II, and dotted line is fine aluminium.
Fig. 6 is that the radiation protection material II that obtains of test one and existing fine aluminium carry out proton irradiation protection comparison diagram.Wherein, solid line is radiation protection material II, and dotted line is fine aluminium.
Fig. 7 is that the radiation protection material III that obtains of test one and existing pure tygon carry out thermogravimetric analysis comparison diagram.Wherein, solid line is radiation protection material III, and dotted line is pure tygon.
Fig. 8 is that the radiation protection material III that obtains of test one and existing fine aluminium carry out electron irradiation comparison diagram.Wherein, solid line is radiation protection material III, and dotted line is fine aluminium.
Fig. 9 is that the radiation protection material III that obtains of test one and existing fine aluminium carry out proton irradiation protection comparison diagram.Wherein, solid line is radiation protection material III, and dotted line is fine aluminium.
Embodiment
Embodiment one: present embodiment is the composite polyethylene material for the radiation proof doped carbon nanometer pipe of space charged particle and nanometer tantalum is be prepared from by the coupling agent of the polyvinyl resin of 1 part ~ 100 parts, the carbon nano-tube of 1 part ~ 10 parts, the nanometer tantalum of 5 parts ~ 50 parts and 0.5 part ~ 20 parts by weight.
Present embodiment for adding carbon nano-tube in the composite polyethylene material of the radiation proof doped carbon nanometer pipe of space charged particle and nanometer tantalum, tygon cracking can be prevented better, improve the protection proton effect of this material.Meanwhile, in composite polyethylene material, add tantalum, because the density of tantalum is large, when electron impact is to material, be easy to larger scattering occurs, electronics energy loss is in the material increased, improves the effect of this material protection electronics.
Present embodiment has the following advantages: the radiation protection material that the preparation method of the composite polyethylene material for the radiation proof doped carbon nanometer pipe of space charged particle and nanometer tantalum that, present embodiment provides prepares, due to employing is that tygon is as radiation protection material, its density is reduced greatly, effectively solves the drawback that aluminium protective layer weight is large; Two, the radiation protection material that the preparation method of the composite polyethylene material for the radiation proof doped carbon nanometer pipe of space charged particle and nanometer tantalum that present embodiment provides prepares, owing to being doped with carbon nano-tube and nanometer tantalum, composite polyethylene material is greatly improved relative to pure poly thermal stability, improves 10% ~ 40%; Three, the radiation protection material that the preparation method of the composite polyethylene material for the radiation proof doped carbon nanometer pipe of space charged particle and nanometer tantalum that present embodiment provides prepares is when being applied to protective zone proton and electron irradiation, after electron irradiation, detector absorbs through the dosage after material, reduce 0.1 times ~ 0.5 times relative to fine aluminium, protection proton efficiency improves 35% ~ 65% relative to fine aluminium.
Embodiment two: the difference of present embodiment and embodiment one is: described compound substance is be prepared from by the coupling agent of the polyvinyl resin of 20 parts ~ 95 parts, the carbon nano-tube of 4 parts ~ 6 parts, the nanometer tantalum of 5 parts ~ 40 parts and 1 part ~ 15 parts by weight.Other is identical with embodiment one.
Embodiment three: the difference of present embodiment and embodiment one or two is: the density of described polyvinyl resin is 0.900g/cm
3~ 0.980g/cm
3.Other is identical with embodiment one or two.
Embodiment four: the difference of one of present embodiment and embodiment one to three is: the particle size of described carbon nano-tube is 0.001 μm ~ 1 μm; The particle size of described nanometer tantalum is 0.001 μm ~ 1 μm.Other is identical with embodiment one to three.
Embodiment five: the difference of one of present embodiment and embodiment one to four is: described coupling agent is titanate coupling agent or aluminate coupling agent.Other is identical with embodiment one to four.
Embodiment six: present embodiment is the preparation method of the composite polyethylene material for the radiation proof doped carbon nanometer pipe of space charged particle and nanometer tantalum, specifically carries out according to the following steps:
One, the ethanol of the polyvinyl resin of 1 part ~ 100 parts, the carbon nano-tube of 1 part ~ 10 parts, the nanometer tantalum of 5 parts ~ 50 parts, the coupling agent of 0.5 part ~ 20 parts and 2 parts ~ 5 parts is taken by weight;
Two, after carbon nano-tube step one taken and nanometer tantalum mix, join in the ethanol that step one takes, dispersed, obtain the mixed liquor of homodisperse carbon nano-tube and nanometer tantalum;
Three, in the homodisperse carbon nano-tube obtained to step 2 and the mixed liquor of nanometer tantalum, the coupling agent that step one takes is added, at the temperature of 50 DEG C ~ 140 DEG C, with the stir speed (S.S.) of 80r/min ~ 120r/min, stir 1h ~ 15h, then, filter, dry, obtain solid mixture;
Four, the solid mixture that polyvinyl resin step one taken and step 3 obtain mixes, then, under the mechanical pressure of the temperature of 175 DEG C ~ 240 DEG C and 5MPa ~ 45MPa, compacting 1min ~ 40min, namely obtains the composite polyethylene material for the radiation proof doped carbon nanometer pipe of space charged particle and nanometer tantalum.
Present embodiment for adding carbon nano-tube in the composite polyethylene material of the radiation proof doped carbon nanometer pipe of space charged particle and nanometer tantalum, tygon cracking can be prevented better, improve the protection proton effect of this material.Meanwhile, in composite polyethylene material, add tantalum, because the density of tantalum is large, when electron impact is to material, be easy to larger scattering occurs, electronics energy loss is in the material increased, improves the effect of this material protection electronics.
Present embodiment has the following advantages: the radiation protection material that the preparation method of the composite polyethylene material for the radiation proof doped carbon nanometer pipe of space charged particle and nanometer tantalum that, present embodiment provides prepares, due to employing is that tygon is as radiation protection material, its density is reduced greatly, effectively solves the drawback that aluminium protective layer weight is large; Two, the radiation protection material that the preparation method of the composite polyethylene material for the radiation proof doped carbon nanometer pipe of space charged particle and nanometer tantalum that present embodiment provides prepares, owing to being doped with carbon nano-tube and nanometer tantalum, composite polyethylene material is greatly improved relative to pure poly thermal stability, improves 10% ~ 40%; Three, the radiation protection material that the preparation method of the composite polyethylene material for the radiation proof doped carbon nanometer pipe of space charged particle and nanometer tantalum that present embodiment provides prepares is when being applied to protective zone proton and electron irradiation, after electron irradiation, detector absorbs through the dosage after material, reduce 0.1 times ~ 0.5 times relative to fine aluminium, protection proton efficiency improves 35% ~ 65% relative to fine aluminium.
Embodiment seven: the difference of present embodiment and embodiment six is: in described step one for take by weight the polyvinyl resin of 20 parts ~ 95 parts, the carbon nano-tube of 4 parts ~ 6 parts, the nanometer tantalum of 5 parts ~ 40 parts, the coupling agent of 1 part ~ 15 parts and and the ethanol of 3 parts ~ 5 parts be prepared from.Other is identical with embodiment six.
Embodiment eight: the difference of present embodiment and embodiment six or seven is: the density of the polyvinyl resin taken in described step one is 0.900g/cm
3~ 0.980g/cm
3.Other is identical with embodiment six or seven.
Embodiment nine: the difference of one of present embodiment and embodiment six to eight is: the particle size of the carbon nano-tube taken in described step one is 0.001 μm ~ 1 μm; The particle size of the nanometer tantalum in described step one is 0.001 μm ~ 1 μm.Other is identical with embodiment six to eight.
Embodiment ten: the difference of one of present embodiment and embodiment six to nine is: the coupling agent taken in described step one is titanate coupling agent or aluminate coupling agent.Other is identical with embodiment six to nine.
Embodiment 11: the application that present embodiments provide for the composite polyethylene material for the radiation proof doped carbon nanometer pipe of space charged particle and nanometer tantalum is that this material is used for protective zone proton and electron irradiation.
Present embodiment for adding carbon nano-tube in the composite polyethylene material of the radiation proof doped carbon nanometer pipe of space charged particle and nanometer tantalum, tygon cracking can be prevented better, improve the protection proton effect of this material.Meanwhile, in composite polyethylene material, add tantalum, because the density of tantalum is large, when electron impact is to material, be easy to larger scattering occurs, electronics energy loss is in the material increased, improves the effect of this material protection electronics.
Present embodiment has the following advantages: the radiation protection material that the preparation method of the composite polyethylene material for the radiation proof doped carbon nanometer pipe of space charged particle and nanometer tantalum that, present embodiment provides prepares, due to employing is that tygon is as radiation protection material, its density is reduced greatly, effectively solves the drawback that aluminium protective layer weight is large; Two, the radiation protection material that the preparation method of the composite polyethylene material for the radiation proof doped carbon nanometer pipe of space charged particle and nanometer tantalum that present embodiment provides prepares, owing to being doped with carbon nano-tube and nanometer tantalum, composite polyethylene material is greatly improved relative to pure poly thermal stability, improves 10% ~ 40%; Three, the radiation protection material that the preparation method of the composite polyethylene material for the radiation proof doped carbon nanometer pipe of space charged particle and nanometer tantalum that present embodiment provides prepares is when being applied to protective zone proton and electron irradiation, after electron irradiation, detector absorbs through the dosage after material, reduce 0.1 times ~ 0.5 times relative to fine aluminium, protection proton efficiency improves 35% ~ 65% relative to fine aluminium.
Adopt following verification experimental verification effect of the present invention:
Test one: for the preparation method of the composite polyethylene material of the radiation proof doped carbon nanometer pipe of space charged particle and nanometer tantalum, specifically carry out according to the following steps:
One, the ethanol of the polyvinyl resin of 84 parts, the carbon nano-tube of 5 parts, the nanometer tantalum of 10 parts, the titanate coupling agent of 1 part and 3 parts is taken by weight; Wherein, the density of polyvinyl resin is 0.920g/cm
3, the particle diameter of carbon nano-tube is 0.05 μm, and the particle diameter of nanometer tantalum is 0.05 μm;
Two, after carbon nano-tube step one taken and nanometer tantalum mix, join in the ethanol that step one takes, dispersed, obtain the mixed liquor of homodisperse carbon nano-tube and nanometer tantalum;
Three, in the homodisperse carbon nano-tube obtained to step 2 and the mixed liquor of nanometer tantalum, add the coupling agent that step one takes, at the temperature of 80 DEG C, with the stir speed (S.S.) of 100r/min, stir 8h, then, filter, dry, obtain solid mixture;
Four, the solid mixture that polyvinyl resin step one taken and step 3 obtain mixes, then, under the mechanical pressure of the temperature of 200 DEG C and 25MPa, constant temperature and pressure compacting 20min, obtain radiation protection material I, namely complete the preparation of the composite polyethylene material for the radiation proof doped carbon nanometer pipe of space charged particle and nanometer tantalum.
The radiation protection material I obtain test one and existing pure tygon carry out thermogravimetric analysis test, obtain Fig. 1.Fig. 1 is that the radiation protection material I that obtains of test one and existing pure tygon carry out thermogravimetric analysis comparison diagram.Wherein, solid line is radiation protection material I, and dotted line is pure tygon.Can obtain pure poly temperature of initial decomposition from Fig. 1 is 365 DEG C, and the temperature of initial decomposition of radiation protection material I is 427 DEG C, compares, and the thermal stability of radiation protection material I is compared pure tygon and improve 17.0%.
The method of described thermogravimetric analysis test is: get the radiation protection material I of 10mg and the existing pure tygon of 10mg; be placed in thermogravimetric/differential thermal analyzer; under nitrogen protection; with the heating rate of 10 DEG C/min from room temperature to 800 DEG C; collect the real-time quality under different temperatures, draw real-time quality and initial mass than variation with temperature curve.
The radiation protection material I obtain test one and existing fine aluminium carry out the test of electron irradiation Electron dose, obtain Fig. 2.Fig. 2 is that the radiation protection material I that obtains of test one and existing fine aluminium carry out electron irradiation comparison diagram.Wherein, solid line is radiation protection material I, and dotted line is fine aluminium.From Fig. 2, the dosage that electron irradiation radiation protection material I post dose detector absorbs under equal in quality thickness can be observed and reduce about 0.14 times relative to fine aluminium.
The method of electron irradiation Electron dose test: the radiation protection material I test one obtained or existing fine aluminium are placed in high energy 1MeV electronics (model is high frequency high voltage electron accelerator, and flux is 1 × 10
10e/cm
2s, exposure time is 4000s) and absorbed dose detector between, incident electron energy immobilizes, and the absorbed dose of electronics through radiation protection material I or fine aluminium collected by using dosage detector, being ordinate with absorbed dose, is that horizontal ordinate is figure with mass thickness.Using 1MeV electronics through the difference of absorbed dose after radiation protection material I and the ratio of radiation protection material I absorbed dose as radiation protection material I pair of electron irradiation protection efficiency.
The radiation protection material I obtain test one and existing fine aluminium carry out proton irradiation protection test, obtain Fig. 3.Fig. 3 is that the radiation protection material I that obtains of test one and existing fine aluminium carry out proton irradiation protection comparison diagram.Wherein, solid line is radiation protection material I, and dotted line is fine aluminium.From Fig. 3, the protection proton efficiency can observing radiation protection material I under equal in quality thickness improves 53.84% relative to fine aluminium.
The method of proton irradiation protection test: between the proton source that the radiation protection material I test one obtained or fine aluminium are placed in EN-18 swindletron and energy-probe, incident proton energy immobilizes, energy-probe is used to collect proton through the dump energy after radiation protection material I or fine aluminium, the difference of projectile energy and dump energy is the energy that material absorbs, ratio material being absorbed energy and projectile energy is as the protection efficiency of material to proton, being ordinate with protection efficiency, is that horizontal ordinate is figure with mass thickness.
Test two: for the preparation method of the composite polyethylene material of the radiation proof doped carbon nanometer pipe of space charged particle and nanometer tantalum, specifically carry out according to the following steps:
One, the ethanol of the polyvinyl resin of 73 parts, the carbon nano-tube of 5 parts, the nanometer tantalum of 20 parts, the coupling agent of 2 parts and 3 parts is taken by weight; Wherein, the density of polyvinyl resin is 0.920g/cm
3, the particle diameter of carbon nano-tube is 0.05 μm, and the particle diameter of nanometer tantalum is 0.05 μm;
Two, after carbon nano-tube step one taken and nanometer tantalum mix, join in the ethanol that step one takes, dispersed, obtain the mixed liquor of homodisperse carbon nano-tube and nanometer tantalum;
Three, in the homodisperse carbon nano-tube obtained to step 2 and the mixed liquor of nanometer tantalum, add the coupling agent that step one takes, at the temperature of 80 DEG C, with the stir speed (S.S.) of 100r/min, stir 8h, then, filter, dry, obtain solid mixture;
Four, the solid mixture that polyvinyl resin step one taken and step 3 obtain mixes, then, under the mechanical pressure of the temperature of 200 DEG C and 25MPa, constant temperature and pressure compacting 20min, obtain radiation protection material II, namely complete the preparation of the composite polyethylene material for the radiation proof doped carbon nanometer pipe of space charged particle and nanometer tantalum.
The radiation protection material II obtain test two and existing pure tygon carry out thermogravimetric analysis test, obtain Fig. 4.Fig. 4 is that the radiation protection material II that obtains of test one and existing pure tygon carry out thermogravimetric analysis comparison diagram.Wherein, solid line is radiation protection material II, and dotted line is pure tygon.Can obtain pure poly temperature of initial decomposition from Fig. 4 is 365 DEG C, and the temperature of initial decomposition of radiation protection material II is 438 DEG C, compares, and the thermal stability of radiation protection material II is compared pure tygon and improve 20%.
The radiation protection material II obtain test two and existing fine aluminium carry out the test of electron irradiation Electron dose, obtain Fig. 5.Fig. 5 is that the radiation protection material II that obtains of test one and existing fine aluminium carry out electron irradiation comparison diagram.Wherein, solid line is radiation protection material II, and dotted line is fine aluminium.From Fig. 5, the dosage that electron irradiation radiation protection material II post dose detector absorbs under equal in quality thickness can be observed and reduce about 0.17 times relative to fine aluminium.
The radiation protection material II obtain test two and existing fine aluminium carry out proton irradiation protection test, obtain Fig. 3.Fig. 3 is that the radiation protection material II that obtains of test one and existing fine aluminium carry out proton irradiation protection comparison diagram.Wherein, solid line is radiation protection material II, and dotted line is fine aluminium.From Fig. 3, the protection proton efficiency can observing radiation protection material II under equal in quality thickness improves 44.87% relative to fine aluminium.
Test three: for the preparation method of the composite polyethylene material of the radiation proof doped carbon nanometer pipe of space charged particle and nanometer tantalum, specifically carry out according to the following steps:
One, the ethanol of the polyvinyl resin of 63 parts, the carbon nano-tube of 5 parts, the nanometer tantalum of 30 parts, the coupling agent of 1 part and 3 parts is taken by weight; Wherein, the density of polyvinyl resin is 0.920g/cm
3, the particle diameter of carbon nano-tube is 0.05 μm, and the particle diameter of nanometer tantalum is 0.05 μm;
Two, after carbon nano-tube step one taken and nanometer tantalum mix, join in the ethanol that step one takes, dispersed, obtain the mixed liquor of homodisperse carbon nano-tube and nanometer tantalum;
Three, in the homodisperse carbon nano-tube obtained to step 2 and the mixed liquor of nanometer tantalum, add the coupling agent that step one takes, at the temperature of 80 DEG C, with the stir speed (S.S.) of 100r/min, stir 8h, then, filter, dry, obtain solid mixture;
Four, the solid mixture that polyvinyl resin step one taken and step 3 obtain mixes, then, under the mechanical pressure of the temperature of 200 DEG C and 25MPa, constant temperature and pressure compacting 20min, obtain radiation protection material III, namely complete the preparation of the composite polyethylene material for the radiation proof doped carbon nanometer pipe of space charged particle and nanometer tantalum.
The radiation protection material III obtain test three and existing pure tygon carry out thermogravimetric analysis test, obtain Fig. 7.Fig. 7 is that the radiation protection material III that obtains of test three and existing pure tygon carry out thermogravimetric analysis comparison diagram.Wherein, solid line is radiation protection material III, and dotted line is pure tygon.Can obtain pure poly temperature of initial decomposition from Fig. 7 is 365 DEG C, and the temperature of initial decomposition of radiation protection material III is 455 DEG C, compares, and the thermal stability of radiation protection material III is compared pure tygon and improve 24.6%.
The radiation protection material III obtain test three and existing fine aluminium carry out the test of electron irradiation Electron dose, obtain Fig. 8.Fig. 8 is that the radiation protection material III that obtains of test one and existing fine aluminium carry out electron irradiation comparison diagram.Wherein, solid line is radiation protection material III, and dotted line is fine aluminium.From Fig. 8, the dosage that electron irradiation radiation protection material III post dose detector absorbs under equal in quality thickness can be observed and reduce about 0.20 times relative to fine aluminium.
The radiation protection material III obtain test three and existing fine aluminium carry out proton irradiation protection test, obtain Fig. 9.Fig. 9 is that the radiation protection material III that obtains of test three and existing fine aluminium carry out proton irradiation protection comparison diagram.Wherein, solid line is radiation protection material III, and dotted line is fine aluminium.From Fig. 9, the protection proton efficiency can observing radiation protection material III under equal in quality thickness improves 40.06% relative to fine aluminium.
Claims (1)
1., for the application of the composite polyethylene material of the radiation proof doped carbon nanometer pipe of space charged particle and nanometer tantalum, it is characterized in that this material to be used for protective zone proton and electron irradiation;
The described composite polyethylene material for the radiation proof doped carbon nanometer pipe of space charged particle and nanometer tantalum carries out according to the following steps:
One, the ethanol of the polyvinyl resin of 84 parts, the carbon nano-tube of 5 parts, the nanometer tantalum of 10 parts, the titanate coupling agent of 1 part and 3 parts is taken by weight; Wherein, the density of polyvinyl resin is 0.920g/cm
3, the particle diameter of carbon nano-tube is 0.05 μm, and the particle diameter of nanometer tantalum is 0.05 μm;
Two, after carbon nano-tube step one taken and nanometer tantalum mix, join in the ethanol that step one takes, dispersed, obtain the mixed liquor of homodisperse carbon nano-tube and nanometer tantalum;
Three, in the homodisperse carbon nano-tube obtained to step 2 and the mixed liquor of nanometer tantalum, add the coupling agent that step one takes, at the temperature of 80 DEG C, with the stir speed (S.S.) of 100r/min, stir 8h, then, filter, dry, obtain solid mixture;
Four, the solid mixture that polyvinyl resin step one taken and step 3 obtain mixes, then, under the mechanical pressure of the temperature of 200 DEG C and 25MPa, constant temperature and pressure compacting 20min, obtain radiation protection material I, namely complete the preparation of the composite polyethylene material for the radiation proof doped carbon nanometer pipe of space charged particle and nanometer tantalum.
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| US20050211930A1 (en) * | 1998-12-07 | 2005-09-29 | Meridian Research And Development | Radiation detectable and protective articles |
| CN101385091A (en) * | 2004-12-20 | 2009-03-11 | 全盛研究与开发公司 | Radiation detectable and protective articles |
| CN101570606A (en) * | 2009-06-15 | 2009-11-04 | 北京化工大学 | Overall lead-free X-ray shielding rubber compound material |
| CN102867557A (en) * | 2012-10-09 | 2013-01-09 | 哈尔滨工业大学 | Boron nitride-polyethylene space radiation protection composite material and preparation method of composite material |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050211930A1 (en) * | 1998-12-07 | 2005-09-29 | Meridian Research And Development | Radiation detectable and protective articles |
| CN101385091A (en) * | 2004-12-20 | 2009-03-11 | 全盛研究与开发公司 | Radiation detectable and protective articles |
| CN101570606A (en) * | 2009-06-15 | 2009-11-04 | 北京化工大学 | Overall lead-free X-ray shielding rubber compound material |
| CN102867557A (en) * | 2012-10-09 | 2013-01-09 | 哈尔滨工业大学 | Boron nitride-polyethylene space radiation protection composite material and preparation method of composite material |
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