CN101391881A - Leadless radiation protection barium plate and method for producing the same - Google Patents
Leadless radiation protection barium plate and method for producing the same Download PDFInfo
- Publication number
- CN101391881A CN101391881A CNA2008101387035A CN200810138703A CN101391881A CN 101391881 A CN101391881 A CN 101391881A CN A2008101387035 A CNA2008101387035 A CN A2008101387035A CN 200810138703 A CN200810138703 A CN 200810138703A CN 101391881 A CN101391881 A CN 101391881A
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- barium
- radiation protection
- lead
- slurries
- leadless
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- 230000005855 radiation Effects 0.000 title claims abstract description 42
- 229910052788 barium Inorganic materials 0.000 title claims abstract description 36
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 28
- 159000000009 barium salts Chemical class 0.000 claims abstract description 11
- 239000002994 raw material Substances 0.000 claims abstract description 11
- 238000000465 moulding Methods 0.000 claims abstract description 7
- 238000001125 extrusion Methods 0.000 claims abstract description 6
- 239000002002 slurry Substances 0.000 claims description 20
- 239000000835 fiber Substances 0.000 claims description 19
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 18
- 239000003469 silicate cement Substances 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 14
- 210000002966 serum Anatomy 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 235000013311 vegetables Nutrition 0.000 claims description 7
- 239000010425 asbestos Substances 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 5
- 229910052895 riebeckite Inorganic materials 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- WDIHJSXYQDMJHN-UHFFFAOYSA-L barium chloride Chemical compound [Cl-].[Cl-].[Ba+2] WDIHJSXYQDMJHN-UHFFFAOYSA-L 0.000 claims description 4
- 229940045511 barium chloride Drugs 0.000 claims description 4
- 229910001626 barium chloride Inorganic materials 0.000 claims description 4
- 239000010428 baryte Substances 0.000 claims description 4
- 229910052601 baryte Inorganic materials 0.000 claims description 4
- AYJRCSIUFZENHW-DEQYMQKBSA-L barium(2+);oxomethanediolate Chemical compound [Ba+2].[O-][14C]([O-])=O AYJRCSIUFZENHW-DEQYMQKBSA-L 0.000 claims description 2
- 239000003365 glass fiber Substances 0.000 claims description 2
- 230000002265 prevention Effects 0.000 abstract description 3
- 239000011398 Portland cement Substances 0.000 abstract 2
- 239000012783 reinforcing fiber Substances 0.000 abstract 2
- 238000010923 batch production Methods 0.000 abstract 1
- 230000005865 ionizing radiation Effects 0.000 abstract 1
- 150000002611 lead compounds Chemical class 0.000 abstract 1
- 239000011268 mixed slurry Substances 0.000 abstract 1
- 238000010025 steaming Methods 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 description 20
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 230000004888 barrier function Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 230000004223 radioprotective effect Effects 0.000 description 4
- 229920001131 Pulp (paper) Polymers 0.000 description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 229910000464 lead oxide Inorganic materials 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000005445 natural material Substances 0.000 description 2
- 238000009206 nuclear medicine Methods 0.000 description 2
- 238000001959 radiotherapy Methods 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 206010028980 Neoplasm Diseases 0.000 description 1
- 208000019155 Radiation injury Diseases 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 201000011510 cancer Diseases 0.000 description 1
- 230000001684 chronic effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- RVPVRDXYQKGNMQ-UHFFFAOYSA-N lead(2+) Chemical compound [Pb+2] RVPVRDXYQKGNMQ-UHFFFAOYSA-N 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 206010040882 skin lesion Diseases 0.000 description 1
- 231100000444 skin lesion Toxicity 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 231100001234 toxic pollutant Toxicity 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
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Abstract
The invention relates to a radiation protection material in the ionizing radiation protection field, and a production method thereof, in particular to a lead-free radiation protection barium board and a production method thereof. The lead-free radiation protection barium board adopts raw materials which are barium salt with the granularity of 300-500 meshes, portland cement and reinforcing fiber, and comprises the following components (part by weight): barium salt: 80-130, portland cement: 15-35 and reinforcing fiber: 5-28. The raw materials are made into mixed slurry and then made into boards with the thickness of 6mm-12mm on a cylinder extrusion machine, and multilayer boards are superposed and pressurized on a punch press of 2500T for 30-70 minutes for molding; the boards are treated with high-temperature steaming for 10-26 hours at 60-120 degrees, and then the lead-free radiation protection barium board is obtained after sanding. The product has stable protection performance, no lead or lead compounds contained in the raw materials, safety and harmlessness, fire prevention, moisture-proof performance, high-temperature resistance, stable geometric dimension, mechanization batch production, low cost with the price of only 1/3 of that of the lead plates with the same thickness, and simple production method.
Description
Technical field
The present invention relates to the ray protection material and the production method thereof in ionization radiation protection field, relate in particular to leadless radiation protection barium plate and production method thereof.
Background technology
The ionizing rays technology to the progress of development and national economy and medical and health care system, has epoch-making pushing effect in the application of industry, medical science and all many-sides of scientific research.But excessive radiation irradiation can produce certain radiation injury to human body, and ionizing rays can not only cause general acute and chronic radiotherapy damage, and can cause partial skin lesion, as individuality sustain damage or the crowd in cancer morbidity increase etc.Therefore, improper with it, mismanagement, protection does not reach requirement, not only can injure the staff of application of radiation, and jeopardize publilc health and environmental safety.For this reason; the World Health Organization and national correlation department are very paid attention to radio-protective; successively correspondence has been formulated tens of kinds of relevant rule and standard with the different field of ionization radiotechnology; to nuclear medicine; radiodiagnosis; the radiation protection standard of numerous areas such as radiotherapy and industrial flaw detection puts teeth in, and this is the important topic of environmental protection work.
Metallic lead and tungsten are radiation proof important materials, but the national economy in recent years development is to the demand growth of heavy metal material, heavy metal is to the pollution of environment, cause above-mentioned materials to cost an arm and a leg, improved the cost of protection greatly, and metallic lead quality softness, geometrical dimension instability, the volatile and contaminate environment of lead ion.There are many substitute products in market in recent years, organic composite protective plate of exploitation, and the higher and contaminate environment because of its cost of manufacture is used to be subjected to certain limitation; The inorganic compounding protective shield, owing to mostly be manual production greatly, the sheet material became uneven is even, barrier propterty instability, and the problem of chemical materials and manufacture craft self existence are difficult to practical the popularization.And be extensive use of materials such as traditional protective coating, inorganic and organic composite protective plate, and all being mixed with lead oxide powder and plumbous zinc ore powder usually to improve barrier propterty, these lead oxide powder or plumbous zinc ore powder are very easily transferred to and are caused serious environmental to pollute in the environment.And the contained plumbous oxide and the price comparison costliness of plumbous zinc powder are difficult to generally use in these protective shields, owing to there is above problem, have influenced the development of radio-protective work.
Summary of the invention
Purpose of the present invention, be at the existing in prior technology deficiency, the contriver is through concentrating on studies for many years, and a kind of radio-protective ideal product that fully can alternative metals lead is researched and developed out in experiment repeatedly, leadless radiation protection barium plate and production method thereof, this product has stable barrier propterty, raw material selection pure natural material, not leaded and compound, hazardous and noxious substances such as volatility toxic pollutant, safe and harmless, fire-proof and damp-proof, high temperature resistant, geometrical dimension is stable, mechanize is produced in batches, solidly be difficult for impaired breaking, with low cost, price is 1/3 of a condition of equivalent thickness stereotype, and making method is simple, easy handling.
Technical scheme of the present invention is: leadless radiation protection barium plate, raw material are that 300-500 purpose barium salt, silicate cement, fortifying fibre are formed by granularity, and feed composition is (weight part):
Barium salt: 80-130
Silicate cement: 15-35
Fortifying fibre: 5-28
Barium salt of the present invention is a kind of～four kind in barium sulfate, barium carbonate, bariumchloride, the barite.
Fortifying fibre of the present invention is one or more in vegetable fibre, glass fibre, the asbestos.
The production method of leadless radiation protection barium plate of the present invention may further comprise the steps:
(1) is that 300-500 purpose barium salt and silicate cement mix in proportion with granularity, adds water and in hollander, pull an oar, make the slurries that concentration is 20%-30%;
(2) fortifying fibre is made into slurries;
(3) slurries with step (1) mix with the slurries of step (2), add water and stir, and obtain the mixed serum that concentration is 10%-20%;
(4) mixed serum of step (3) is copied the sheet material of making thickness between the 6mm-12mm on the machine of getting, excision forming at cylinder;
(5) the sheet material multilayer stack that step (4) is made, pressurization moulding in 30-70 minute on the pressing machine of 2500T;
(6) with the sheet material after the extrusion forming under the 60-120 degree high-temperature steam curing 10-26 hour, the leadless radiation protection barium plate that forms through sanding again.
The used material of leadless radiation protection barium plate of the present invention can be gathered materials on the spot fully, and the hydration moulding does not have any chemical additive, is applicable to:
1, metope protection: this plate is directly followed closely on the metope after the processing, stop light towards outside can directly paste architectural surface, save keel and substrate, easy construction, simply, fill and lead up with respective material and get final product at seam groove place.
2, make the radioprotective door and window, with this section bar material excision forming, the core-board clamping is pasted on the two sides, and (can make door-plate around fastening, equivalent is selected the barium plate of different thickness for use as required, also stackable use with U shaped metal groove.
3, manufacture various protective shields, its making method is identical with the protective door way.
4, Nuclear Medicine is with dividing medicine cupboard, storage source case, dirt box.
The present invention has following beneficial effect:
1, mechanize is produced in batches, and geometrical dimension is stable, and is solid reliable, is difficult for impaired breaking, fire prevention.
2, fabulous humidity resistance at the environment of high humidity, still can keep the stable of performance, can not expand or be out of shape.
3, long service life, stable performance, acid and alkali-resistance can not corrode, and can not suffer infringements such as moisture or worm ant yet, and intensity and hardness passes in time and increase, and can guarantee the work-ing life of overlength.
4, safe and harmless, raw material selection pure natural material, and cheap, the formulation product price of the present invention that reaches same protective capacities is about 35% of other leaded formulation product, greatly reduces the protection cost.
5, has stable barrier propterty (seeing accompanying drawing and examining report for details).
Description of drawings
The gray scale image that accompanying drawing 1 forms under X-ray production apparatus for the standard stereotype of the protective shield of the present invention of different thickness and each model,
Among the figure, first row's label is that 1,2,3,4 image is that protective value is respectively the image that the standard stereotype of 0.85mmpb, 1.4mmpb, 1.96mmpb, 3.1mmpb forms; Second row's label is that the image of A is that existing specification is the image of 10mm protective shield thickness on the market; Label is that the image of B is that specification is the image of the leadless radiation protection barium plate formation of the present invention of 10mm; Label is that the image of C is the image of the leadless radiation protection barium plate stacking formation two-layer of the present invention of specification 10mm; Label is that the image of D is that specification is three layers of image that leadless radiation protection barium plates stacking of the present invention forms of 10mm;
Embodiment
Embodiment 1
Leadless radiation protection barium plate, raw material are that 400 purpose barium sulfate, label are that 425 silicate cement, paper pulp fiber are formed by granularity, and feed composition is (weight part):
Barium sulfate: 80
Silicate cement: 25
Paper pulp fiber: 12
The production method of leadless radiation protection barium plate may further comprise the steps:
(1) in proportion barium sulfate and silicate cement are mixed, add water and in hollander, pull an oar, make concentration and be 30% slurries;
(2) paper pulp fiber is made into slurries;
(3) slurries with step (1) mix with the slurries of step (2), add water and stir, and obtain concentration and be 15% mixed serum;
(4) mixed serum of step (3) is copied the sheet material of making 8mm thickness on the machine of getting, excision forming at cylinder;
(5) 12 stacked the adding of sheet material that step (4) made, pressurization moulding in 50 minutes on the pressing machine of 2500T;
(6) with the sheet material after the extrusion forming high-temperature steam curing 24 hours, the leadless radiation protection barium plate that forms through sanding again under 80 degree.
By the thick leadless radiation protection barium plate of 12mm that above-mentioned component and method are made, recording the protective value value under 102kV, 100mAs, 2.0mmAL is 0.64mmpb.
Leadless radiation protection barium plate, raw material are that 300 purpose barites, label are that 525 silicate cement, vegetable fibre, asbestos are formed by granularity, and feed composition is (weight part):
Barite: 130
Silicate cement: 30
Vegetable fibre: 20
Asbestos: 5
The production method of leadless radiation protection barium plate may further comprise the steps:
(1) in proportion barite and silicate cement are mixed, add water and in hollander, pull an oar, make concentration and be 25% slurries;
(2) vegetable fibre is made into slurries with asbestos;
(3) slurries with step (1) mix with the slurries of step (2), add water and stir, and obtain concentration and be 20% mixed serum;
(4) mixed serum of step (3) is copied the sheet material of making 10mm thickness on the machine of getting, excision forming at cylinder;
(5) 10 stacked the adding of sheet material that step (4) made, pressurization moulding in 30 minutes on the pressing machine of 2500T;
(6) with the sheet material after the extrusion forming high-temperature steam curing 18 hours, the leadless radiation protection barium plate that forms through sanding again under 100 degree.
By the thick leadless radiation protection barium plate of 10mm that above-mentioned component and method are made, recording the protective value value under 102kV, 100mAs, 2.0mmAL is 1.15mmpb.
Leadless radiation protection barium plate, raw material are that 500 purpose barium sulfate and bariumchloride, label are that 325 silicate cement, fortifying fibre are formed by granularity, and feed composition is (weight part):
Barium sulfate: 80
Bariumchloride: 30
Silicate cement: 35
Vegetable fibre: 28
The production method of leadless radiation protection barium plate may further comprise the steps:
(1) in proportion barium salt and silicate cement are mixed, add water and in hollander, pull an oar, make concentration and be 20% slurries;
(2) vegetable fibre is made into slurries;
(3) slurries with step (1) mix with the slurries of step (2), add water and stir, and obtain concentration and be 10% mixed serum;
(4) mixed serum of step (3) is copied the sheet material of making 12mm thickness on the machine of getting, excision forming at cylinder;
(5) 10 stacked the adding of sheet material that step (4) made, pressurization moulding in 70 minutes on the pressing machine of 2500T;
(6) with the sheet material after the extrusion forming high-temperature steam curing 26 hours, the leadless radiation protection barium plate that forms through sanding again under 120 degree.
By the thick leadless radiation protection barium plate of 10mm that above-mentioned component and method are made, recording the protective value value under 102kV, 100mAs, 2.0mmAL is 1.31mmpb.
The weight ratio of each raw material is part embodiment of the present invention in the prescription that following form is enumerated, and can also form more prescription.
According to shown in Figure 1, with X-ray production apparatus in same throwing according to condition, the gray scale image that forms by the various protective shields put and stereotype compares, and can get information about the protection situation of protective shield.
Use detecting instrument: X-ray production apparatus (model AX G P 520)
Throw according to condition: 102kV; 100mAs; 2.0mmAL
Among the figure, first row's label is that 1,2,3,4 image is that protective value is respectively the image that the standard stereotype of 0.85mmpb, 1.4mmpb, 1.96mmpb, 3.1mmpb forms; Second row's label is that the image of A is that existing specification is the image that 10mm thickness home built contains lead apron on the market, the image that forms is through contrast, this sheet material is close with image 1, can reach protective value is about 0.85mmpb, and pit appears, illustrate that protection effect is inhomogeneous, can not well stop ray.
Label is that the image of B is that specification is the image of the leadless radiation protection barium plate formation of the present invention of 10mm, and this image is equivalent to the protective value 1.4mmpb of image 2, and does not have pit, and protection effect is even, can well stop ray.
Label is that the image of C is the image of the leadless radiation protection barium plate stacking formation two-layer of the present invention of specification 10mm, the level result that the image border position display is stacked, this image exceeds the protective value 1.96mmpb with Fig. 3, and does not have pit, protection effect is even, can better stop ray.
Label is that the image of D is that specification is three layers of image that leadless radiation protection barium plates stacking of the present invention forms of 10mm, the level result that the image border position display is stacked, this image exceeds the suitable protective value 3.1mmpb with Fig. 4, and does not have pit, protection effect is even, can the extraordinary ray that stops.
For further specifying radiation protection effect of the present invention, by Shandong Center for Disease Control ﹠ Prevention is that the radiation protection barium plate of the present invention of 6mm, 8mm, 10mm, 12mm has carried out the X ray shielding properties and measures to thickness respectively, detects according to being GBZ/T147-2002 " mensuration of X-ray protection material fade performance "
Respectively at 90kV, 100mAs, 2.0mmAL and 102kV, 100mAs under the 2.0mmAL testing conditions, detects with multi-functional X line detector and X-ray production apparatus, sees specification sheets substantive examination bibliography " examining report " for details.
Claims (4)
1, leadless radiation protection barium plate is characterized in that: described raw material is that 300-500 purpose barium salt, silicate cement, fortifying fibre are formed by granularity, and feed composition is (weight part):
Barium salt: 80-130
Silicate cement: 15-35
Fortifying fibre: 5-28
2, leadless radiation protection barium plate according to claim 1 is characterized in that: described barium salt is a kind of～four kind in barium sulfate, barium carbonate, bariumchloride, the barite.
3, leadless radiation protection barium plate according to claim 1 is characterized in that: described fortifying fibre is one or more in vegetable fibre, glass fibre, the asbestos.
4, the production method of leadless radiation protection barium plate according to claim 1 is characterized in that may further comprise the steps:
(1) is that 300-500 purpose barium salt and silicate cement mix in proportion with granularity, adds water and in hollander, pull an oar, make the slurries that concentration is 20%-30%;
(2) fortifying fibre is made into slurries;
(3) slurries with step (1) mix with the slurries of step (2), add water and stir, and obtain the mixed serum that concentration is 10%-20%;
(4) mixed serum of step (3) is copied the sheet material of making thickness between the 6mm-12mm on the machine of getting, excision forming at cylinder;
(5) the sheet material multilayer stack that step (4) is made, pressurization moulding in 30-70 minute on the pressing machine of 2500T;
(6) with the sheet material after the extrusion forming under the 60-120 degree high-temperature steam curing 10-26 hour, the leadless radiation protection barium plate that forms through sanding again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810138703A CN101391881B (en) | 2008-07-30 | 2008-07-30 | Leadless radiation protection barium plate and method for producing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810138703A CN101391881B (en) | 2008-07-30 | 2008-07-30 | Leadless radiation protection barium plate and method for producing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101391881A true CN101391881A (en) | 2009-03-25 |
| CN101391881B CN101391881B (en) | 2010-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810138703A Expired - Fee Related CN101391881B (en) | 2008-07-30 | 2008-07-30 | Leadless radiation protection barium plate and method for producing the same |
Country Status (1)
| Country | Link |
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| CN (1) | CN101391881B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102298981A (en) * | 2011-05-18 | 2011-12-28 | 孙鹏 | Protective material and method for eliminating radiation of building material |
| CN102842350A (en) * | 2011-06-22 | 2012-12-26 | 梁瑶娟 | Barium-based fiber protection plate |
| CN102930908A (en) * | 2011-08-10 | 2013-02-13 | 刘学文 | Method for manufacturing lead-free plant fiber protecting plate |
| CN104129954A (en) * | 2014-06-18 | 2014-11-05 | 北京城阳崂峰医用射线防护技术中心 | Barite X/gamma ray protective material |
| CN106182340A (en) * | 2015-05-05 | 2016-12-07 | 合肥四达环境系统工程科技有限公司 | Radiation protection board |
| CN107089813A (en) * | 2017-03-25 | 2017-08-25 | 杭州科安辐射防护工程有限公司 | A kind of radiation-proof plate |
| CN107915440A (en) * | 2017-10-31 | 2018-04-17 | 湖南康宁达医疗科技股份有限公司 | A kind of leadless radiation protection plate and preparation method thereof |
| CN111690369A (en) * | 2019-03-15 | 2020-09-22 | 贝克西弗股份有限公司 | Coating structure of radiation-resistant glue and method thereof |
-
2008
- 2008-07-30 CN CN200810138703A patent/CN101391881B/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102298981A (en) * | 2011-05-18 | 2011-12-28 | 孙鹏 | Protective material and method for eliminating radiation of building material |
| CN102842350A (en) * | 2011-06-22 | 2012-12-26 | 梁瑶娟 | Barium-based fiber protection plate |
| CN102930908A (en) * | 2011-08-10 | 2013-02-13 | 刘学文 | Method for manufacturing lead-free plant fiber protecting plate |
| CN104129954A (en) * | 2014-06-18 | 2014-11-05 | 北京城阳崂峰医用射线防护技术中心 | Barite X/gamma ray protective material |
| CN106182340A (en) * | 2015-05-05 | 2016-12-07 | 合肥四达环境系统工程科技有限公司 | Radiation protection board |
| CN107089813A (en) * | 2017-03-25 | 2017-08-25 | 杭州科安辐射防护工程有限公司 | A kind of radiation-proof plate |
| CN107089813B (en) * | 2017-03-25 | 2019-06-14 | 科安环境工程技术有限公司 | A kind of radiation-proof plate |
| CN107915440A (en) * | 2017-10-31 | 2018-04-17 | 湖南康宁达医疗科技股份有限公司 | A kind of leadless radiation protection plate and preparation method thereof |
| CN111690369A (en) * | 2019-03-15 | 2020-09-22 | 贝克西弗股份有限公司 | Coating structure of radiation-resistant glue and method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101391881B (en) | 2010-05-12 |
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