CN105820604B - Environment-friendly type radiation shielding coating - Google Patents
Environment-friendly type radiation shielding coating Download PDFInfo
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Abstract
The invention discloses a kind of environment-friendly type radiation shielding coatings, it by barium sulfate or barite is major ingredient, using the mixed powder of metallic iron or derivatives thereof, copper or derivatives thereof, tin or derivatives thereof, bismuth or derivatives thereof, tungsten or derivatives thereof and rare earth element or derivatives thereof as auxiliary material, and using macromolecule rubber powder as bonding agent.Compared with prior art, environment-friendly type radiation shielding coating provided by the invention has shielding property good, can absorb scattered rays；Rendering layer is thin, will not be cracked, fall off；Without lead, the advantages such as environment-protecting and non-poisonous, easy for construction may replace stereotype and do novel X-ray protection material, have very big market foreground.
Description
Technical field
The invention belongs to radiation protection material fields, and in particular to a kind of environment-friendly type radiation shielding coating.
Background technology
With development in science and technology, electronic equipment is gradually applied to all trades and professions, they brought for the mankind it is huge convenient
Meanwhile the aspect for also having some troubling, wherein it is exactly electromagnetic radiation health that most widely people are of concern
The problem of.
Due to the harm of radiation, all can wall be applied to using radiation protection composite powder in places such as hospital, factory, scientific researches
On, to reduce the harm of radioactive ray to the greatest extent, present people are also more and more applied in office space and house decoration.Anti- spoke
The electromagnetic wave energy for projecting its surface can be absorbed and be transformed into thermal energy by the loss of material by penetrating composite powder, reduce clutter
Interference to equipment of itself effectively prevent injury of the electromagnetic radiation to surrounding devices and personnel, moreover, it can be applied to complexity
Curved surface, small corner etc., be accurately rigidly formed film, meet industry, science and Medical Devices needs.
As 101497757 B of Chinese invention patent CN disclose a kind of aqueous radiation shielding coating, including by flaky graphite
Powder, acetylene carbon dust, carbonyl iron dust, ferrite powder constitute the major ingredient of electromagnetic wave absorption functions material, and auxiliary material has diffusant, bonding
Agent, film forming agent, ammonium hydroxide, pure water can absorb electromagnetic wave, without secondary electromagnetic pollution, but this aqueous radiation shielding coating only for
Protection is made in longer wavelengths of electromagnetic pollution, and being not particularly suited for hospital, factory, scientific research institution etc. has X, γ, β ray and radioactive nucleus
The workplace in plain source.
It is reported that traditional radiation protection material will produce following defect in application：One, protection effect is poor, because being added
Low-gravity river sand, cement cause the reduction of protective layer entirety proportion, protection effect also to decline to a great extent therewith；Two, thickness is painted,
To achieve the effect that protection, the thickness of rendering layer generally reach 20mm or more, difficulty of construction is increased, also, rendering layer is blocked up,
It is airtight, it will to cause to be cracked or fall off, durability is poor, and protection effect is greatly lowered；Third, rendering layer is uneven, easily occur
Pin hole, bubble, whiten, loss of gloss phenomena such as, rendering layer is of poor quality.More serious, some protective coatings are to overcome above-mentioned lack
Fall into, can take and a large amount of lead is added in barium sulfate or barite powder, this not only increases costs, and its matter it is soft,
It is constructional difficulties, toxic, so that Lead in Air content is increased, and scattered rays can be caused, Health Impact is very big.
In recent years, country facilities have begun the raw material using metal material as radiation proof material, are mainly barium sulfate
Either barite powder is equipped with the agitated rear painting wall of river sand, cement, ceiling or ground.Such as Chinese invention patent CN
100588689C discloses a kind of radiation-resisting composite dope, is made of following composition：Iron oxide accounts for 15-25wt%, and granularity is
0.1mm-1.3mm；Tungsten ore powder accounts for 2.7-8wt%, granularity 0.1mm-0.3mm；Rectorite mine accounts for 4-10wt%, granularity 100-
200 mesh；Barium sulfate accounts for 40-50wt%, granularity 0.1mm-2.0mm；Ferric sulfate accounts for 0.7-1.3wt%, granularity 1.0mm-
1.5mm；Cement accounts for 20-25wt%；Borax accounts for 0.5-0.9wt%, although it realizes unleaded, and to X, γ, β ray and puts
There is stronger absorption in penetrating property nucleic source, but it uses low-gravity cement as bonding agent, leads to protective layer entirety proportion
It reduces, to realize that preferable protection effect, the thickness of rendering layer still need to reach 20mm or more, because protective layer painting is blocked up, easily leads to
Protective layer falls off, is cracked, and increases difficulty of construction, considerably reduces protection effect；And it is absorbed or the ray energy of reflection
It is not completely covered in medical X-ray energy spectrum, and does not solve above-mentioned traditional radiation protection material and will produce in application
Defect, being also not particularly suited for hospital, factory, scientific research institution etc. has the workplace of X, γ, β ray and radionuclide source.
Invention content
In view of the above-mentioned problems existing in the prior art, the invention discloses a kind of environment-friendly type radiation shielding coatings, on overcoming
State the defect that radiation shielding coating rendering layer is thick and heavy, radiation protection ability is low.To reach above-mentioned technique effect, the present invention is in coating system
The metal material for using absorption of electromagnetic radiation effect good during making uses hyperbaric height as raw material before paint coating
Molecule rubber powder replaces low-gravity cement as bonding agent, keeps rendering layer thinner.
For achieving the above object, technical scheme is as follows：
Environment-friendly type radiation shielding coating is major ingredient, with metallic iron or derivatives thereof, copper or its derivative by barium sulfate or barite
Object, tin or derivatives thereof, bismuth or derivatives thereof, tungsten or derivatives thereof and rare earth element or derivatives thereof are auxiliary material, and with high score
Sub- rubber powder is bonding agent.
Preferably, the macromolecule rubber powder be selected from 901 macromolecule rubber powders, 801 macromolecule rubber powders, 107 macromolecule rubber powders or
M40 macromolecule rubber powders.
It cannot be satisfied the requirement of Medical anti-radiation environment it is another object of the present invention to solve existing radiation protection material,
Under the premise of rendering layer is thin compared with the radiation protection material that the prior art provides, the X that can be fully absorbed or reflect 5-100kev is penetrated
Line.
For achieving the above object, technical scheme is as follows：
Environment-friendly type radiation shielding coating, composition and mass percent are as follows：
Preferably, above-mentioned each group is divided into particle and/or powder, can be uniformly mixed, reaches better protection effect；
It should be noted that for building material industry, usual grain size is known as powder in 75 microns of (i.e. 200 mesh) materials below.
Preferably, the grain diameter of the mixture of the major ingredient and auxiliary material is less than 10 mesh.
Preferably, above-mentioned environment-friendly type radiation shielding coating, composition and mass percent are as follows：
Preferably, the derivative of metal is selected from oxide, sulfide, metal salt or the minerals of metal.
Preferably as a kind of preferable embodiment, auxiliary material is metal or metal oxide；Most preferably metal.Change speech
It, in above-mentioned auxiliary material, iron or derivatives thereof is preferably the oxide of metallic iron or iron, copper or derivatives thereof be preferably metallic copper or
The oxide of copper, tin or derivatives thereof are preferably the oxide of metallic tin or tin, and bismuth or derivatives thereof is preferably bismuth metal or bismuth
Oxide, tungsten or derivatives thereof is preferably the oxide of tungsten or tungsten.
As a kind of preferred embodiment, environment-friendly type radiation shielding coating provided by the invention, each component and its quality percentage
Proportioning is as follows：
As a kind of preferred embodiment, environment-friendly type radiation shielding coating provided by the invention, each component and its quality percentage
Proportioning is as follows：
As a kind of preferable embodiment, above-mentioned barite is preferably high density barite.
It is highly preferred that high density barite density is 4.0~4.3；Most preferably 4.3.
As a kind of preferable embodiment, rare earth element is selected from heavy rare earth element；Wherein, heavy rare earth element or its derivative
Object is preferably the oxide of heavy rare earth element；Most preferably yttria, lanthana, holimium oxide or luteium oxide.
Preferably, the particle size range of the mixture of the major ingredient and auxiliary material is：The mixture of the mesh of 10 mesh~40 accounts for 45%~
55%, the mixture of the mesh of 40 mesh~100 accounts for 18%~26%, and the mixture of the mesh of 100 mesh~325 accounts for 13%~21%, 325 mesh with
Under mixture account for 4%~10%, the sum of total percentage is 100%.
It is highly preferred that the particle size range of the mixture of the major ingredient and auxiliary material is：The mixture of the mesh of 10 mesh~40 accounts for 50%
~55%, the mixture of the mesh of 40 mesh~100 accounts for 20%~24%, and the mixture of the mesh of 100 mesh~325 accounts for 17%~20%, 325 mesh
Mixture below accounts for 4%~7%, and the sum of total percentage is 100%.
It is noted that radiation shielding coating provided by the invention is when in use, stirs evenly and can directly make after water is added
With simple and fast；Wherein, environment-friendly type radiation shielding coating and water are with 3:1~4：1 (weight ratio) mixes.
Preferably, rear proportion is more than 3.6 to above-mentioned each component by evenly mixing.
The present invention has the advantage that：
1, product is not required to addition river sand, and the macromolecule rubber powder of minimal amount of high bond degree is used in combination to replace a large amount of low bonding
Cement does bonding agent, also uses highdensity metal or metal derivative for ray-proof material, therefore product density is big, painting
Layer is thin, will not be cracked, fall off；Protective layer only needs painting 10mm thickness just to can reach the protection effect of traditional handicraft 20mm, protects effect
Fruit is very reliable.
2, the metal and rare earth element contained in product can effectively absorb the amount of radiation of different-energy different wave length, can absorb
X-ray energy range up to 5~120kV so that the coating assimilation effect is more preferable, significantly reduces sending out for scattered rays,
Avoid the secondary injury of the scattered rays of the staff or patient under ray radiation.
3, this environment-friendly type radiation shielding coating is free of lead, therefore environmentally friendly, nontoxic, on staff's body without influence.
4, easy for construction, it is easy to operate, when in use, water only need to be added, stirring evenly directly to use, and viscosity is good, hold
Easily construction.
Specific implementation mode
The present invention is made further in detail, completely to illustrate with reference to embodiment.
Embodiment 1
A kind of environment-friendly type radiation shielding coating, using barium sulfate as major ingredient, with iron powder, copper powder, glass putty, bismuth meal, tungsten powder and three oxygen
The mixture for changing two ytterbiums is auxiliary material, and is formed using 107 macromolecule rubber powders as bonding agent；Its raw material and mass percent are with such as
Under：
The sum of mass percent of above-mentioned component is 100%, total weight 100kg, proportion 6.56.Wherein, barium sulfate
And the particle size range of various metal mixtures is：10-40 mesh particles are that 54.6%, 40-100 mesh particles are 22.2%, 100-325
Mesh particle is 17.4%, remaining is below 325 mesh.
20 kg of water are added to be sufficiently stirred, the sample for taking 10mm*200mm*200mm after plank is made in coating, obtains
Sample 1.
Embodiment 2
A kind of environment-friendly type radiation shielding coating, using barium sulfate as major ingredient, with iron powder, copper powder, glass putty, bismuth meal, tungsten powder and three oxygen
The mixture for changing two ytterbiums is auxiliary material, and is formed using 107 macromolecule rubber powders as bonding agent；Its raw material and mass percent are with such as
Under：
The sum of mass percent of above-mentioned component is 100%, total weight 100kg, proportion 6.13.Wherein, barium sulfate
And the particle size range of various metal mixtures is：10-40 mesh particles are that 49.0%, 40-100 mesh particles are 25.5%, 100-325
Mesh particle is 16.7%, remaining is below 325 mesh.
21 kg of water are added to be sufficiently stirred, the sample for taking 10mm*200mm*200mm after plank is made, obtains sample
2。
Embodiment 3
A kind of environment-friendly type radiation shielding coating is major ingredient, with iron oxide, copper oxide, tin oxide, bismuth oxide, oxygen by barium sulfate
The mixture for changing tungsten and holimium oxide is auxiliary material, and using 801 macromolecule rubber powders as bonding agent；Its raw material and mass percent are with such as
Under：
The sum of mass percent of above-mentioned component is 100%, total weight 100kg, proportion 4.85.Wherein, barium sulfate
And the particle size range of various metallic ore substances is：10-40 mesh particles are that 45.0%, 40-100 mesh particles are 26.0%, 100-300
Mesh particle is 21.0%, remaining is below 325 mesh.
23 kg of water are added to be sufficiently stirred, the sample for taking 10mm*200mm*200mm after plank is made, obtains sample
3。
Embodiment 4
A kind of environment-friendly type radiation shielding coating is major ingredient, with iron oxide, copper oxide, tin oxide, bismuth oxide, oxygen by barium sulfate
The mixture for changing tungsten and holimium oxide is auxiliary material, and using 801 macromolecule rubber powders as bonding agent；Its raw material and mass percent are with such as
Under：
The sum of mass percent of above-mentioned component is 100%, total weight 100kg, proportion 4.51.Wherein, barium sulfate
And the particle size range of various metallic ore substances is：10-40 mesh particles are that 52.3%, 40-100 mesh particles are 23.8%, 100-300
Mesh particle is 19.2%, remaining is below 300 mesh.
25 kg of water are added to be sufficiently stirred, the sample for taking 10mm*200mm*200mm after plank is made, obtains sample
4。
Embodiment 5
A kind of environment-friendly type radiation shielding coating is major ingredient, with iron oxide, copper powder, stannous sulfide, alkali formula nitric acid by barite
The mixture of bismuth, tungsten powder and lanthana is auxiliary material, and using M40 macromolecules rubber powder as bonding agent；Its raw material and mass percent are matched
Than as follows：
The sum of mass percent of above-mentioned component is 100%, total weight 100kg, proportion 4.78.Wherein, barium sulfate
And the particle size range of various metallic ore substances is：10-40 mesh particles are that 55%, 40-100 mesh particles are 18%, 100-300 mesh
Grain is 17%, remaining is below 325 mesh.
24 kg of water are added to be sufficiently stirred, the sample for taking 10mm*200mm*200mm after plank is made, obtains sample
5。
Embodiment 6
A kind of environment-friendly type radiation shielding coating is major ingredient, with iron ore, Copper Ores, tin ore, bismuth mineral stone, tungsten by barite
The mixture of ore and cerite is auxiliary material, and using 901 macromolecule rubber powders as bonding agent；Its raw material and mass percent are with such as
Under：
The sum of mass percent of above-mentioned component is 100%, total weight 100kg, proportion 4.14.Wherein, barium sulfate
And the particle size range of various metallic ore substances is：10-40 mesh particles are that 53.5%, 40-100 mesh particles are 23.5%, 100-300
Mesh particle is 13.0%, remaining is below 325 mesh.
27 kg of water are added to be sufficiently stirred, the sample for taking 10mm*200mm*200mm after plank is made, obtains sample
6。
Comparative example 1
Using iron oxide 200kg, granularity 0.1mm-1.3mm；Wolframite 80kg, granularity 0.1mm-0.3mm, hardness 5-5.5,
Proportion 7.1-7.5；Rectorite mine 100kg, granularity 100-200 mesh, rectorite Han Liang >42%；Barium sulfate (barite) 500kg,
Granularity 0.1mm-2.0mm, barite meet JGJ53-92 standards, performance density >=3.79t/m3, loose thickness >=2.08t/m3,
Barium content >=80% or more；Ferric sulfate 15kg, granularity 1.0mm-1.5mm；Cement 250kg；Borax 10kg, proportion 1.73.It will be upper
It states seven kinds of materials to be sequentially placed into order, stir evenly, amount of water 120ML/kg.
The sample for taking 10mm*200mm*200mm after plank is made, obtains sample 7.
Comparative example 2
Using iron oxide 250kg, granularity 0.1mm-1.3mm；Wolframite, (FeMn) WO4, 30kg, granularity 0.1mm-
0.3mm, hardness 5-5.5, proportion 7.1-7.5；Rectorite mine 60kg, granularity 100-200 mesh, rectorite Han Liang >42%；Barium sulfate
(barite) 500kg, granularity 0.1mm-2.0mm, barite meet JGJ53-92 standards, performance density >=3.79t/m3, loosely
Density >=2.08t/m3, barium content >=80% or more；Ferric sulfate 8kg, granularity 1.0mm-1.5mm；Cement 250kg；Borax 5kg,
Proportion 1.73.Above-mentioned seven kinds of materials are sequentially placed into order, are stirred evenly, amount of water 200ML/kg.
The sample for taking 10mm*200mm*200mm after plank is made, obtains sample 8.
20mm*200mm*200mm planks with regard to the making of common barium sulfate and 10mm*200mm*200mm planks (difference below
For sample 9 and sample 10), make radiation protection effect detection, radiation absorption effect detection respectively with above-described embodiment and comparative example
Contrast experiment, the barium sulfate in common barium sulfate plank, cement, sand mass ratio are 3：1：1；Detect key instrument equipment and volume
Number：NE2550 secondary standard dosemeters J-067；DCI8500 precision current integrator TK30 ionisation chambers J-102.120kV,
In the case of 2.5mmAl, testing result is as follows：
Table 1
| Sample serial number | Lead equivalent (120kV, 2.5mmAl) | X-ray absorption rate |
| Sample 1 | 2.71mmPb | 85.7% |
| Sample 2 | 2.57mmpb | 78.2% |
| Sample 3 | 1.91mmPb | 73.6% |
| Sample 4 | 1.77mmPb | 68.8% |
| Sample 5 | 1.83mmPb | 69.2% |
| Sample 6 | 1.66mmPb | 64.1% |
| Sample 7 | 1.33mmPb | 42.7% |
| Sample 8 | 1.27mmPb | 34.3% |
| Sample 9 | 1.52mmPb | 22.3% |
| Sample 10 | 0.75mmPb | 15.2% |
Data above shows that the lead equivalent of sample 1~6 is significantly greater than sample 7~10, and X-ray absorption rate is more up to 85%,
It is higher by several times than sample 7~10, it is known that, when being protected with environment-friendly type radiation shielding coating provided by the invention, in radiation protection
It is substantially better than the prior art in terms of effect, radiation absorption effect, better than common barium sulfate plank effect is more.
It is it is necessary to described herein finally：Embodiment of the present invention is described in detail above in conjunction with table 1, still
Present invention is not limited to the embodiments described above, within the knowledge of a person skilled in the art, can also be not
Various changes can be made under the premise of disengaging present inventive concept.
Claims (9)
1. a kind of environment-friendly type radiation shielding coating, it is characterised in that：It is major ingredient, with metallic iron or its derivative by barium sulfate or barite
Object, copper or derivatives thereof, tin or derivatives thereof, bismuth or derivatives thereof, tungsten or derivatives thereof and rare earth element or derivatives thereof are
Auxiliary material, and using macromolecule rubber powder as bonding agent, the macromolecule rubber powder is selected from 901 macromolecule rubber powders, 801 macromolecule rubber powders, 107
Macromolecule rubber powder or M40 macromolecule rubber powders, macromolecule rubber powder account for the 0.2-0.8% of coating gross mass.
2. environment-friendly type radiation shielding coating according to claim 1, which is characterized in that the percent mass proportioning of each component
It is as follows：
The sum of said components mass percent is 100%.
3. environment-friendly type radiation shielding coating according to claim 2, it is characterised in that：Above-mentioned each group is divided into particle and/or powder
End.
4. environment-friendly type radiation shielding coating according to claim 2, it is characterised in that：The mixture of the major ingredient and auxiliary material
Grain size is less than 10 mesh.
5. environment-friendly type radiation shielding coating according to claim 2, it is characterised in that：The derivative of the metal is selected from metal
Oxide, sulfide, metal salt or minerals.
6. environment-friendly type radiation shielding coating according to claim 2, it is characterised in that：The auxiliary material is that metal or metal aoxidize
Object.
7. environment-friendly type radiation shielding coating according to claim 2, it is characterised in that：The mixture of the major ingredient and auxiliary material
Particle size range is：The mixture of the mesh of 10 mesh~40 accounts for 45%~55%, and the mixture of the mesh of 40 mesh~100 accounts for 18%~
26%, the mixture of the mesh of 100 mesh~325 accounts for 13%~21%, and 325 mesh mixture below accounts for 4%~10%, percentage it
Be 100%.
8. environment-friendly type radiation shielding coating according to claim 1, it is characterised in that：The environment-friendly type radiation shielding coating and water
With 3:1~4：1 (weight ratio) mixes.
9. environment-friendly type radiation shielding coating according to claim 1, it is characterised in that：The each component compares afterwards by evenly mixing
It is great in 3.6.
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106977110A (en) * | 2017-04-06 | 2017-07-25 | 浙江伟豪能源科技有限公司 | A kind of antiradiation coating applied to LCD computer display screen |
| CN107353731A (en) * | 2017-07-12 | 2017-11-17 | 国网山东省电力公司临沂供电公司 | A kind of production method of environment-friendly type communication work indoor wall building coating |
| CN107353730A (en) * | 2017-07-12 | 2017-11-17 | 国网山东省电力公司临沂供电公司 | A kind of preparation method of information machine room Antistatic radiation-proof wall paint |
| CN107629578A (en) * | 2017-11-17 | 2018-01-26 | 贵阳振辐射线防护器材有限公司 | A kind of radiation shielding coating and its production technology |
| CN109135368A (en) * | 2018-08-03 | 2019-01-04 | 河北众诚伟业科技有限公司 | A kind of preparation method of radiation protection anticorrosive paint |
| CN111647336A (en) * | 2020-07-08 | 2020-09-11 | 镧明材料技术(上海)有限公司 | Nano rare earth radiation-proof composite coating and preparation method thereof |
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|---|---|---|---|---|
| CN101570606A (en) * | 2009-06-15 | 2009-11-04 | 北京化工大学 | Overall lead-free X-ray shielding rubber compound material |
| CN102664050A (en) * | 2012-05-28 | 2012-09-12 | 丁俊 | Radiation protection material |
| CN103824605A (en) * | 2014-02-24 | 2014-05-28 | 贵州华尚高新技术有限公司 | Unleaded ionizing-radiation-resistant composite material |
| CN103937299A (en) * | 2014-03-31 | 2014-07-23 | 荣坤 | Environment-friendly sterilization coating and preparation method thereof |
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| WO2008066319A1 (en) * | 2006-11-28 | 2008-06-05 | Woo-Jae Lee | Inorganic pigments composition having high hardness |
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|---|---|---|---|---|
| CN101570606A (en) * | 2009-06-15 | 2009-11-04 | 北京化工大学 | Overall lead-free X-ray shielding rubber compound material |
| CN102664050A (en) * | 2012-05-28 | 2012-09-12 | 丁俊 | Radiation protection material |
| CN103824605A (en) * | 2014-02-24 | 2014-05-28 | 贵州华尚高新技术有限公司 | Unleaded ionizing-radiation-resistant composite material |
| CN103937299A (en) * | 2014-03-31 | 2014-07-23 | 荣坤 | Environment-friendly sterilization coating and preparation method thereof |
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Address after: 411228 5 Flying Pigeon Road, Tian Yi demonstration area, Xiangtan, Hunan Patentee after: Hunan Kang Ningda medical Polytron Technologies Inc Address before: 411228 5 Flying Pigeon Road, Tian Yi demonstration area, Xiangtan, Hunan Patentee before: HUNAN KANGNINGDA MEDICAL EQUIPMENT CO., LTD. |