CN117656618A - Adhesive tape capable of simultaneously protecting slow neutrons, gamma rays and X rays and preparation method thereof - Google Patents
Adhesive tape capable of simultaneously protecting slow neutrons, gamma rays and X rays and preparation method thereof Download PDFInfo
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- CN117656618A CN117656618A CN202311368211.6A CN202311368211A CN117656618A CN 117656618 A CN117656618 A CN 117656618A CN 202311368211 A CN202311368211 A CN 202311368211A CN 117656618 A CN117656618 A CN 117656618A
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- 238000002360 preparation method Methods 0.000 title claims abstract description 36
- 239000002390 adhesive tape Substances 0.000 title claims abstract description 27
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 130
- 239000012790 adhesive layer Substances 0.000 claims abstract description 78
- 239000000463 material Substances 0.000 claims abstract description 42
- 229910000416 bismuth oxide Inorganic materials 0.000 claims abstract description 12
- TYIXMATWDRGMPF-UHFFFAOYSA-N dibismuth;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Bi+3].[Bi+3] TYIXMATWDRGMPF-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052580 B4C Inorganic materials 0.000 claims abstract description 11
- INAHAJYZKVIDIZ-UHFFFAOYSA-N boron carbide Chemical compound B12B3B4C32B41 INAHAJYZKVIDIZ-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000004945 silicone rubber Substances 0.000 claims description 106
- 239000010410 layer Substances 0.000 claims description 48
- 239000000853 adhesive Substances 0.000 claims description 41
- 230000001070 adhesive effect Effects 0.000 claims description 41
- 229920001971 elastomer Polymers 0.000 claims description 26
- HIHIPCDUFKZOSL-UHFFFAOYSA-N ethenyl(methyl)silicon Chemical compound C[Si]C=C HIHIPCDUFKZOSL-UHFFFAOYSA-N 0.000 claims description 26
- 238000002156 mixing Methods 0.000 claims description 26
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 25
- 239000006229 carbon black Substances 0.000 claims description 25
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 25
- 229920002545 silicone oil Polymers 0.000 claims description 25
- 239000004568 cement Substances 0.000 claims description 24
- 150000002978 peroxides Chemical class 0.000 claims description 24
- 239000004677 Nylon Substances 0.000 claims description 22
- 239000003795 chemical substances by application Substances 0.000 claims description 22
- 229920001778 nylon Polymers 0.000 claims description 22
- 239000002994 raw material Substances 0.000 claims description 21
- 238000004513 sizing Methods 0.000 claims description 21
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 19
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 claims description 17
- 238000000576 coating method Methods 0.000 claims description 16
- 239000011248 coating agent Substances 0.000 claims description 12
- 239000004744 fabric Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 9
- 238000004073 vulcanization Methods 0.000 claims description 8
- 150000001875 compounds Chemical class 0.000 claims description 6
- 239000011230 binding agent Substances 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 3
- 230000005855 radiation Effects 0.000 abstract description 27
- 230000001681 protective effect Effects 0.000 abstract description 3
- 238000001035 drying Methods 0.000 description 5
- 230000032683 aging Effects 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005251 gamma ray Effects 0.000 description 2
- 238000004898 kneading Methods 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 239000012209 synthetic fiber Substances 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229920006052 Chinlon® Polymers 0.000 description 1
- 229910052688 Gadolinium Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- UIWYJDYFSGRHKR-UHFFFAOYSA-N gadolinium atom Chemical compound [Gd] UIWYJDYFSGRHKR-UHFFFAOYSA-N 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229910052735 hafnium Inorganic materials 0.000 description 1
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005025 nuclear technology Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention provides an adhesive tape capable of simultaneously protecting slow neutrons, gamma rays and X rays and a preparation method thereof, and relates to the technical field of protective adhesive tapes. The first silicon rubber surface adhesive layer in the adhesive tape contains boron carbide, so that slow neutrons can be protected; the second silicon rubber surface adhesive layer contains bismuth oxide, can protect gamma rays and X rays, and has good compatibility with silicon rubber; according to the invention, different nuclear radiation shielding materials are added into the adhesive layers on the upper surface and the lower surface of the adhesive tape, and the compounded adhesive tape can simultaneously protect against radiation such as slow neutrons, gamma rays, X rays and the like, so that the adhesive tape is suitable for comprehensive protection of unknown environments and complex radiation environments.
Description
Technical Field
The invention relates to the technical field of protective rubberized fabrics, in particular to a rubberized fabric capable of simultaneously protecting slow neutrons, gamma rays and X rays and a preparation method thereof.
Background
With the rapid development of nuclear energy and nuclear technology industries, nuclear and radiation security has received widespread attention. The nuclear radiation protection material and the protection articles can effectively reduce the harm of radiation, and have urgent social demands.
When gamma rays and X rays interact with substances, the energy of the gamma rays and the X rays is lost mainly through photoelectric effect, compton scattering and electron pair effect, and the reaction cross section (i.e. the interaction probability) is closely related to the atomic number and density of the acting substances. Lead materials are widely used as radiation shielding filler materials due to their high atomic number, high mass density and low cost. However, lead is found to have certain mobility and great biotoxicity during use, and if exposed for a long time, the lead-free gamma ray and X ray radiation protection materials can pose a great health threat to users and protective service manufacturers, and are an important direction for the development of flexible radiation protection materials.
Neutrons enter the material, and most of the time, transfer their energy to the nuclei of the material by elastic and inelastic scattering, slow into thermal or slow neutrons, and then are absorbed by the nuclei of the material by radiation capture and other processes. Fast neutrons have strong penetrating power, and materials with large cross sections for nuclear reaction with neutrons should be selected as shielding materials for neutron radiation. The fast neutron shielding material should have the following characteristics: the neutron below the inelastic scattering threshold can be effectively slowed into slow neutrons by containing enough hydrogen, such as water, rubber and the like; the material with large thermal neutron absorption cross section such as boron, gadolinium and hafnium can effectively absorb slow neutrons.
At present, conventional nuclear radiation protection products are designed and developed under the condition of known radiation sources (known as ray radiation or neutron radiation), and nuclear radiation protection only protects a single radiation source type and cannot adapt to comprehensive protection of unknown environments and complex radiation environments.
Disclosure of Invention
The invention aims to provide the adhesive tape capable of simultaneously protecting slow neutrons, gamma rays and X rays and the preparation method thereof.
In order to achieve the above object, the present invention provides the following technical solutions:
the invention provides an adhesive tape capable of simultaneously protecting slow neutrons, gamma rays and X rays, which is obtained by vulcanizing a plurality of layers of rubber materials; the multi-layer sizing material comprises a first silicone rubber surface sizing layer, a first silicone rubber adhesive layer, a nylon framework layer, a second silicone rubber adhesive layer and a second silicone rubber surface sizing layer which are sequentially laminated;
the preparation raw materials of the first silicone rubber surface adhesive layer comprise the following components in parts by weight: 100 parts of methyl vinyl silicone rubber, 40 parts of precipitated white carbon black, 4 parts of hydroxyl silicone oil, 2,50.8 parts of peroxide vulcanizing agent, 1.5 parts of ferric oxide and 150 parts of boron carbide;
the preparation raw materials of the second silicone rubber surface adhesive layer comprise the following components in parts by weight: 100 parts of methyl vinyl silicone rubber, 40 parts of precipitated white carbon black, 4 parts of hydroxyl silicone oil, 2,50.8 parts of peroxide vulcanizing agent, 700 parts of bismuth oxide and 1.5 parts of ferric oxide.
Preferably, the thickness of the first silicone rubber surface adhesive layer is 0.20-0.25 mm.
Preferably, the thickness of the second silicone rubber surface adhesive layer is 0.35-0.40 mm.
Preferably, the preparation raw materials of the first silicone rubber adhesive layer and the second silicone rubber adhesive layer comprise the following components in parts by weight: 100 parts of methyl vinyl silicone rubber, 40 parts of precipitated white carbon black, 4 parts of hydroxyl silicone oil, 2,51 parts of peroxide vulcanizing agent, 1.6 parts of adhesive RE and 2 parts of adhesive H.
Preferably, the thickness of the first and second silicone rubber adhesive layers is independently 0.01 to 0.02mm.
Preferably, the thickness of the nylon skeleton layer is 0.18-0.20 mm.
The invention provides a preparation method of the adhesive tape capable of simultaneously protecting slow neutrons, gamma rays and X rays, which comprises the following steps:
respectively coating silicon rubber adhesive on the upper surface and the lower surface of the nylon skeleton layer to form a first silicon rubber adhesive layer and a second silicon rubber adhesive layer;
coating a first surface adhesive layer on the surface of the first silicone rubber adhesive layer to form a first silicone rubber surface adhesive layer; coating second surface adhesive cement on the surface of the second silicone rubber adhesive layer to form a second silicone rubber surface adhesive layer, so as to obtain a multi-layer adhesive material;
vulcanizing the multi-layer sizing material to obtain the rubberized fabric capable of simultaneously protecting slow neutrons, gamma rays and X rays;
the preparation of the first face cement comprises the following steps: mixing methyl vinyl silicone rubber, precipitated white carbon black, hydroxyl silicone oil, peroxide vulcanizing agent bis (2, 5), ferric oxide and boron carbide, and mixing the obtained mixed rubber with 120# gasoline to obtain first face cement;
the preparation of the second face cement comprises the following steps: mixing methyl vinyl silicone rubber, precipitated white carbon black, hydroxyl silicone oil, peroxide vulcanizing agent bis (2, 5), bismuth oxide and ferric oxide, and mixing the obtained mixed rubber with No. 120 gasoline to obtain second face rubber slurry.
Preferably, the preparation of the silicone rubber binder comprises the following steps: mixing methyl vinyl silicone rubber, precipitated white carbon black, hydroxyl silicone oil, peroxide vulcanizing agent bis 2,5, adhesive RE and adhesive H, and mixing the obtained mixed rubber with No. 120 gasoline to obtain the silicone rubber adhesive.
Preferably, when the first face cement and the second face cement are prepared, the mass ratio of the rubber compound to the 120# gasoline is 1:1.
Preferably, the vulcanization includes: and sequentially carrying out first vulcanization for 60min at 100-140 ℃ and second vulcanization for 80min at 140-145 ℃.
The invention provides an adhesive tape capable of simultaneously protecting slow neutrons, gamma rays and X rays, which is obtained by vulcanizing a plurality of layers of rubber materials; the multi-layer sizing material comprises a first silicone rubber surface sizing layer, a first silicone rubber adhesive layer, a nylon framework layer, a second silicone rubber adhesive layer and a second silicone rubber surface sizing layer which are sequentially laminated; the preparation raw materials of the first silicone rubber surface adhesive layer comprise the following components in parts by weight: 100 parts of methyl vinyl silicone rubber, 40 parts of precipitated white carbon black, 4 parts of hydroxyl silicone oil, 2,50.8 parts of peroxide vulcanizing agent, 1.5 parts of ferric oxide and 150 parts of boron carbide; the preparation raw materials of the second silicone rubber surface adhesive layer comprise the following components in parts by weight: 100 parts of methyl vinyl silicone rubber, 40 parts of precipitated white carbon black, 4 parts of hydroxyl silicone oil, 2,50.8 parts of peroxide vulcanizing agent, 700 parts of bismuth oxide and 1.5 parts of ferric oxide.
The first silicon rubber surface adhesive layer in the adhesive tape contains boron carbide, so that slow neutrons can be protected; the second silicon rubber surface adhesive layer contains bismuth oxide, can protect gamma rays and X rays, and has good compatibility with silicon rubber; according to the invention, different nuclear radiation shielding materials are added into the adhesive layers on the upper surface and the lower surface of the adhesive tape, and the compounded adhesive tape can simultaneously protect against radiation such as slow neutrons, gamma rays, X rays and the like, so that the adhesive tape is suitable for comprehensive protection of unknown environments and complex radiation environments.
In addition, the nylon skeleton is adopted, and the nylon skeleton material is novel high-tech synthetic fiber, has excellent performances of ultrahigh strength, high modulus, high temperature resistance, acid and alkali resistance, light weight, aging resistance, long life cycle and the like, and is lighter than the traditional lead material.
Furthermore, the silicone rubber adhesive layer is formed by compounding methyl vinyl silicone rubber with an inter-methyl adhesive system adhesive, and has high adhesive force with a nylon framework material.
Drawings
FIG. 1 is a schematic structural diagram of a multilayer compound of the present invention, wherein the compound comprises a 1-first silicone rubber topcoat layer, a 2-first silicone rubber adhesive layer, a 3-nylon backbone layer, a 4-second silicone rubber adhesive layer, and a 5-second silicone rubber topcoat layer.
Detailed Description
The invention provides an adhesive tape capable of simultaneously protecting slow neutrons, gamma rays and X rays, which is obtained by vulcanizing a plurality of layers of rubber materials; the multi-layer sizing material comprises a first silicone rubber surface sizing layer, a first silicone rubber adhesive layer, a nylon framework layer, a second silicone rubber adhesive layer and a second silicone rubber surface sizing layer which are sequentially laminated;
the preparation raw materials of the first silicone rubber surface adhesive layer comprise the following components in parts by weight: 100 parts of methyl vinyl silicone rubber, 40 parts of precipitated white carbon black, 4 parts of hydroxyl silicone oil, 2,50.8 parts of peroxide vulcanizing agent, 1.5 parts of ferric oxide and 150 parts of boron carbide;
the preparation raw materials of the second silicone rubber surface adhesive layer comprise the following components in parts by weight: 100 parts of methyl vinyl silicone rubber, 40 parts of precipitated white carbon black, 4 parts of hydroxyl silicone oil, 2,50.8 parts of peroxide vulcanizing agent, 700 parts of bismuth oxide and 1.5 parts of ferric oxide.
In the present invention, the raw materials used are commercially available products well known in the art, unless specifically described otherwise.
As shown in fig. 1, the multilayer sizing material of the present invention comprises a first silicone rubber surface sizing layer 1, a first silicone rubber adhesive layer 2, a nylon skeleton layer 3, a second silicone rubber adhesive layer 4 and a second silicone rubber surface sizing layer 5 which are laminated in sequence.
In the present invention, the thickness of the first silicone rubber layer is preferably 0.20 to 0.25mm, more preferably 0.22 to 0.23mm.
The preparation raw materials of the first silicone rubber surface adhesive layer comprise the following components in parts by weight: 100 parts of methyl vinyl silicone rubber, 40 parts of precipitated white carbon black, 4 parts of hydroxyl silicone oil, 2,50.8 parts of peroxide vulcanizing agent, 1.5 parts of ferric oxide and 150 parts of boron carbide.
In the invention, the boron carbide is used as a neutron nuclear radiation shielding material to play a role in protecting slow neutrons; the ferric oxide is used as a heat-resistant additive, so that the hot air aging performance of the silicon rubber can be obviously improved; the hydroxyl silicone oil is used as a structure regulator, so that the dispersibility of the white carbon black can be improved, and the structuring of sizing materials can be prevented.
In the present invention, the thickness of the first silicone rubber adhesive layer is preferably 0.01 to 0.02mm. The preparation raw materials of the first silicon rubber adhesive layer preferably comprise the following components in parts by weight: 100 parts of methyl vinyl silicone rubber, 40 parts of precipitated white carbon black, 4 parts of hydroxyl silicone oil, 2,51 parts of peroxide vulcanizing agent, 1.6 parts of adhesive RE and 2 parts of adhesive H. In the invention, the first silicone rubber adhesive layer is formed by compounding methyl vinyl silicone rubber with an inter-methyl adhesive system adhesive, and has high adhesive force with a nylon framework material.
In the present invention, the thickness of the nylon skeleton layer is preferably 0.18 to 0.20mm, more preferably 0.19mm. In the invention, the nylon skeleton layer is preferably commercially available special industrial nylon silk with the model number of 507. The invention adopts the nylon skeleton, and the nylon skeleton material is a novel high-tech synthetic fiber, has the excellent performances of ultrahigh strength, high modulus, high temperature resistance, acid and alkali resistance, light weight, aging resistance, long life cycle and the like, and is lighter than the traditional lead material.
In the present invention, the thickness and the preparation raw materials of the second adhesive layer are the same as those of the first adhesive, and will not be described herein.
In the present invention, the thickness of the second silicone rubber layer is preferably 0.35 to 0.40mm, more preferably 0.36 to 0.38mm. The preparation raw materials of the second silicone rubber surface adhesive layer comprise the following components in parts by weight: 100 parts of methyl vinyl silicone rubber, 40 parts of precipitated white carbon black, 4 parts of hydroxyl silicone oil, 2,50.8 parts of peroxide vulcanizing agent, 700 parts of bismuth oxide and 1.5 parts of ferric oxide. In the invention, the bismuth oxide is used as a gamma ray and X ray shielding material, and can protect gamma rays and X rays.
According to the invention, different nuclear radiation shielding materials are added into the adhesive layers on the upper surface and the lower surface of the adhesive tape, and the compounded adhesive tape can simultaneously protect against radiation such as slow neutrons, gamma rays, X rays and the like, so that the adhesive tape is suitable for comprehensive protection of unknown environments and complex radiation environments.
The invention provides a preparation method of the adhesive tape capable of simultaneously protecting slow neutrons, gamma rays and X rays, which comprises the following steps:
respectively coating silicon rubber adhesive on the upper surface and the lower surface of the nylon skeleton layer to form a first silicon rubber adhesive layer and a second silicon rubber adhesive layer;
coating a first surface adhesive layer on the surface of the first silicone rubber adhesive layer to form a first silicone rubber surface adhesive layer; coating second surface adhesive cement on the surface of the second silicone rubber adhesive layer to form a second silicone rubber surface adhesive layer, so as to obtain a multi-layer adhesive material;
and vulcanizing the multi-layer sizing material to obtain the rubberized fabric capable of simultaneously protecting slow neutrons, gamma rays and X rays.
According to the invention, the upper surface and the lower surface of the nylon framework layer are respectively coated with the silicone rubber adhesive to form a first silicone rubber adhesive layer and a second silicone rubber adhesive layer.
In the present invention, the preparation of the silicone rubber binder preferably includes the steps of: mixing methyl vinyl silicone rubber, precipitated white carbon black, hydroxyl silicone oil, peroxide vulcanizing agent bis 2,5, adhesive RE and adhesive H, and mixing the obtained mixed rubber with No. 120 gasoline to obtain the silicone rubber adhesive. The invention has no special requirement on the mixing process, and the mixing process well known in the field can be adopted. In the invention, the mass ratio of the rubber compound to the 120# gasoline is preferably 1:3. The present invention has no special requirements for the coating process, and the coating process well known in the art can be adopted.
After a first silicone rubber adhesive layer and a second silicone rubber adhesive layer are formed, the surface of the first silicone rubber adhesive layer is coated with first face adhesive cement to form a first silicone rubber face adhesive layer, and the surface of the second silicone rubber adhesive layer is coated with second face adhesive cement to form a second silicone rubber face adhesive layer, so that the multilayer adhesive is obtained.
In the invention, the preparation of the first face cement comprises the following steps: mixing methyl vinyl silicone rubber, precipitated white carbon black, hydroxyl silicone oil, peroxide vulcanizing agent bis (2, 5), ferric oxide and boron carbide, and mixing the obtained mixed rubber with 120# gasoline to obtain first face cement;
the preparation of the second face cement comprises the following steps: mixing methyl vinyl silicone rubber, precipitated white carbon black, hydroxyl silicone oil, peroxide vulcanizing agent bis (2, 5), bismuth oxide and ferric oxide, and mixing the obtained mixed rubber with No. 120 gasoline to obtain second face rubber slurry.
In the invention, when the first face cement and the second face cement are prepared, the mass ratio of the rubber compound to the 120# gasoline is preferably 1:1.
The present invention is not particularly limited to the above-described kneading and coating processes, and kneading and coating processes well known in the art may be employed.
In the present invention, after each application, the present invention preferably further comprises a drying treatment at a temperature of preferably 40 to 60 ℃, and the present invention has no special requirement for the drying time so as to achieve non-blocking of the surface.
After the multi-layer sizing material is obtained, the multi-layer sizing material is vulcanized to obtain the rubberized fabric capable of simultaneously protecting slow neutrons, gamma rays and X rays.
In the present invention, the vulcanization preferably includes: and sequentially carrying out first vulcanization for 60min at 100-140 ℃ and second vulcanization for 80min at 140-145 ℃.
The adhesive tape capable of simultaneously protecting slow neutrons, gamma rays and X rays and the preparation method thereof are described in detail below with reference to examples, but they are not to be construed as limiting the scope of the present invention.
Example 1
As shown in fig. 1, the adhesive tape capable of protecting slow neutrons, gamma rays and X rays simultaneously is prepared by the following steps:
mixing the preparation raw materials according to the table 1 to obtain a mixed rubber, and mixing the mixed rubber with 120# gasoline according to the ratio of 1:3 to obtain a silicone rubber adhesive;
mixing the preparation raw materials according to the table 2 to obtain a mixed rubber, and mixing the mixed rubber with 120# gasoline according to the ratio of 1:1 to obtain first face cement;
mixing the preparation raw materials according to the table 3 to obtain a mixed rubber, and mixing the mixed rubber with 120# gasoline according to the ratio of 1:1 to obtain second face cement;
coating a silicon rubber adhesive with the thickness of 0.02mm on the upper and lower parts of a nylon framework material 3, drying to form a first silicon rubber adhesive layer 2 and a second silicon rubber adhesive layer 4, coating a first adhesive cement with the thickness of 0.25mm on the surface of an upper silicon rubber adhesive layer 2, drying to form a first silicon rubber adhesive layer 1 for shielding slow neutrons, coating a second adhesive cement with the thickness of 0.38mm on the surface of a lower second silicon rubber adhesive layer 4, drying to form a second silicon rubber adhesive layer 5 for shielding gamma rays and X rays, vulcanizing in a vulcanizing tank to prepare a vulcanizing condition that the thickness is 0.88mm and can simultaneously shield slow neutrons, gamma rays and X rays: 100-140 ℃ multiplied by 60min, 140-145 ℃ multiplied by 80min, and 140min in total.
Table 1 raw materials for preparing a silicone rubber adhesive layer
| Raw material name | Parts by weight of |
| Methyl vinyl silicone rubber | 100.0 |
| White carbon black by precipitation method | 40.0 |
| Hydroxy silicone oil | 4.0 |
| Peroxide curative bis 2,5 | 1.0 |
| Adhesive RE | 1.6 |
| Adhesive H | 2.0 |
TABLE 2 preparation of first Silicone rubber topcoat layer
TABLE 3 preparation of the second Silicone rubber topcoat layer
| Raw material name | Parts by weight of |
| Methyl vinyl silicone rubber | 100 |
| White carbon black by precipitation method | 40.0 |
| Hydroxy silicone oil | 4.0 |
| Peroxide curative bis 2,5 | 0.8 |
| Bismuth oxide | 700 |
| Iron oxide | 1.5 |
TABLE 4 Properties of rubberized fabrics, face glue layers and chinlon skeletons
As can be seen from the results in Table 4, the adhesive tape provided by the invention can realize comprehensive protection of slow neutrons, gamma rays and X rays, and meets the radiation shielding requirement of an unknown radiation source.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (10)
1. An adhesive tape capable of simultaneously protecting slow neutrons, gamma rays and X rays is obtained by vulcanizing multiple layers of rubber materials; the multi-layer sizing material comprises a first silicone rubber surface sizing layer, a first silicone rubber adhesive layer, a nylon framework layer, a second silicone rubber adhesive layer and a second silicone rubber surface sizing layer which are sequentially laminated;
the preparation raw materials of the first silicone rubber surface adhesive layer comprise the following components in parts by weight: 100 parts of methyl vinyl silicone rubber, 40 parts of precipitated white carbon black, 4 parts of hydroxyl silicone oil, 2,50.8 parts of peroxide vulcanizing agent, 1.5 parts of ferric oxide and 150 parts of boron carbide;
the preparation raw materials of the second silicone rubber surface adhesive layer comprise the following components in parts by weight: 100 parts of methyl vinyl silicone rubber, 40 parts of precipitated white carbon black, 4 parts of hydroxyl silicone oil, 2,50.8 parts of peroxide vulcanizing agent, 700 parts of bismuth oxide and 1.5 parts of ferric oxide.
2. The rubberized fabric capable of simultaneously protecting slow neutrons, gamma rays and X rays according to claim 1, wherein the thickness of said first silicone rubber facing layer is 0.20-0.25 mm.
3. The rubberized fabric capable of simultaneously protecting against slow neutrons, gamma rays and X rays according to claim 1, wherein the thickness of said second silicone rubber facing layer is 0.35-0.40 mm.
4. The rubberized fabric capable of simultaneously protecting against slow neutrons, gamma rays and X rays according to claim 1, wherein the preparation raw materials of the first silicone rubber adhesive layer and the second silicone rubber adhesive layer comprise, in parts by weight: 100 parts of methyl vinyl silicone rubber, 40 parts of precipitated white carbon black, 4 parts of hydroxyl silicone oil, 2,51 parts of peroxide vulcanizing agent, 1.6 parts of adhesive RE and 2 parts of adhesive H.
5. The adhesive tape for simultaneously shielding slow neutrons, gamma rays and X rays according to claim 1 or 4, wherein the thickness of the first and second silicone rubber adhesive layers is independently 0.01-0.02 mm.
6. The rubberized fabric capable of simultaneously protecting against slow neutrons, gamma rays and X rays according to claim 1, wherein the thickness of said nylon skeleton layer is 0.18-0.20 mm.
7. The method for preparing the adhesive tape capable of simultaneously protecting slow neutrons, gamma rays and X rays according to any one of claims 1 to 6, which is characterized by comprising the following steps:
respectively coating silicon rubber adhesive on the upper surface and the lower surface of the nylon skeleton layer to form a first silicon rubber adhesive layer and a second silicon rubber adhesive layer;
coating a first surface adhesive layer on the surface of the first silicone rubber adhesive layer to form a first silicone rubber surface adhesive layer; coating second surface adhesive cement on the surface of the second silicone rubber adhesive layer to form a second silicone rubber surface adhesive layer, so as to obtain a multi-layer adhesive material;
vulcanizing the multi-layer sizing material to obtain the rubberized fabric capable of simultaneously protecting slow neutrons, gamma rays and X rays;
the preparation of the first face cement comprises the following steps: mixing methyl vinyl silicone rubber, precipitated white carbon black, hydroxyl silicone oil, peroxide vulcanizing agent bis (2, 5), ferric oxide and boron carbide, and mixing the obtained mixed rubber with 120# gasoline to obtain first face cement;
the preparation of the second face cement comprises the following steps: mixing methyl vinyl silicone rubber, precipitated white carbon black, hydroxyl silicone oil, peroxide vulcanizing agent bis (2, 5), bismuth oxide and ferric oxide, and mixing the obtained mixed rubber with No. 120 gasoline to obtain second face rubber slurry.
8. The method of preparing according to claim 7, wherein the preparation of the silicone rubber binder comprises the steps of: mixing methyl vinyl silicone rubber, precipitated white carbon black, hydroxyl silicone oil, peroxide vulcanizing agent bis 2,5, adhesive RE and adhesive H, and mixing the obtained mixed rubber with No. 120 gasoline to obtain the silicone rubber adhesive.
9. The method according to claim 7, wherein the mass ratio of the compound to the 120# gasoline is 1:1 when the first face cement and the second face cement are prepared.
10. The method of preparing according to claim 7, wherein the vulcanizing comprises: and sequentially carrying out first vulcanization for 60min at 100-140 ℃ and second vulcanization for 80min at 140-145 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311368211.6A CN117656618A (en) | 2023-10-20 | 2023-10-20 | Adhesive tape capable of simultaneously protecting slow neutrons, gamma rays and X rays and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311368211.6A CN117656618A (en) | 2023-10-20 | 2023-10-20 | Adhesive tape capable of simultaneously protecting slow neutrons, gamma rays and X rays and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117656618A true CN117656618A (en) | 2024-03-08 |
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ID=90074160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311368211.6A Pending CN117656618A (en) | 2023-10-20 | 2023-10-20 | Adhesive tape capable of simultaneously protecting slow neutrons, gamma rays and X rays and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117656618A (en) |
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- 2023-10-20 CN CN202311368211.6A patent/CN117656618A/en active Pending
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