CN110838379B - Ionizing radiation protective clothing - Google Patents
Ionizing radiation protective clothing Download PDFInfo
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- CN110838379B CN110838379B CN201911304242.9A CN201911304242A CN110838379B CN 110838379 B CN110838379 B CN 110838379B CN 201911304242 A CN201911304242 A CN 201911304242A CN 110838379 B CN110838379 B CN 110838379B
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- protective garment
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F1/00—Shielding characterised by the composition of the materials
- G21F1/12—Laminated shielding materials
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F3/00—Shielding characterised by its physical form, e.g. granules, or shape of the material
- G21F3/02—Clothing
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/221—Oxides; Hydroxides of metals of rare earth metal
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Inorganic Chemistry (AREA)
- Professional, Industrial, Or Sporting Protective Garments (AREA)
Abstract
The invention belongs to the technical field of radiation-proof clothes, and particularly relates to ionizing radiation protective clothes. The protective suit comprises an inner layer structure, an outer layer structure and a middle layer structure; the intermediate layer structure is a coating structure, and the coating comprises the following components in parts by weight: 40-50 parts of erbium oxide, 10-20 parts of bismuth oxide, 5-15 parts of nano titanium dioxide, 10-20 parts of water-soluble polyurethane, 20-30 parts of silica gel and 1-5 parts of polyethylene glycol. The protective clothing of the invention has excellent performance of preventing ionizing radiation, in particular the performance of preventing gamma rays.
Description
Technical Field
The invention belongs to the technical field of radiation-proof clothes, and particularly relates to ionizing radiation protective clothes.
Background
The damage effect of ionizing radiation on human body mainly includes many aspects of blood system, nervous system, immune system, skin, eyes, etc. The long-term low-dose ionizing radiation causes different degrees of damage to different systems (including blood systems, nervous systems, digestive systems, endocrine systems, immune systems, skin, eyes and the like) of the radiation workers, and the damage effect is more obvious along with the prolonging of the radiation time.
Although the technology for preventing ionizing radiation is continuously improved along with the rapid development of scientific technology, the irradiation dose of the radiation worker in the practice is gradually reduced. Medical institutions/enterprises and radiation workers pay high attention to and pay attention to health monitoring and radiation protection work, radiation exposure is reduced to the maximum extent, radiation damage is reduced, and health and safety of the radiation workers are practically guaranteed.
Lead has good nuclear radiation protection effect and lower cost, is widely applied in the field of radiation protection, but has the defects of low protection efficiency, poor stability, low repeated utilization rate and the like.
Chinese patent application CN107910089A discloses a novel flexible lead-free radiation protective clothing, the surface of protective clothing is equipped with the inoxidizing coating, and the inoxidizing coating adopts matrix material and a filler section of thick bamboo mixing technology and calendering process to make, matrix material include silane coupling agent, antioxidant, polyvinyl alcohol, rubber softening oil, dioctyl ester, polyethylene rubber prepolymer, the filler include tantalum powder, tungsten powder, iron powder, platinum powder. The protective clothing does not cause skin damage and inhalation danger to users, has no special requirements and environmental limitations for destruction, and is lighter than lead clothing. Because the powder is easy to gather, the tantalum powder, the tungsten powder, the iron powder and the platinum powder are used as the filler, and the uniform distribution of the filler in the protective clothing is difficult to ensure.
Therefore, it is still a great need for the existing radiation workers to provide a protective garment with strong ionization radiation protection function, and convenient and comfortable wearing.
Disclosure of Invention
The invention mainly aims to provide ionizing radiation protective clothing which is lead-free protective clothing, has excellent ionizing radiation preventing function, has the functions of water resistance, oil resistance and the like, and is suitable for radiation-proof workers.
In order to achieve the purpose, the invention adopts the following technical scheme:
providing an ionizing radiation protective garment, wherein the protective garment comprises an inner layer structure, an outer layer structure and a middle layer structure;
the intermediate layer structure is a coating structure, and the coating comprises the following components in parts by weight: 40-50 parts of erbium oxide, 10-20 parts of bismuth oxide, 5-15 parts of nano titanium dioxide, 10-20 parts of water-soluble polyurethane, 20-30 parts of silica gel and 1-5 parts of polyethylene glycol.
According to the ionizing radiation protective clothing described above, it is preferable that the thickness of the intermediate layer coating is 1.5 to 3 mm.
According to the ionizing radiation protective clothing, preferably, the matrix fabric used in the middle layer is woven, knitted, warp-knitted fabric layer or non-woven fabric layer of cotton, hemp, silk, terylene, acrylic fiber or their mixture.
According to the ionizing radiation protective clothing, preferably, the outer layer structure is a double-layer structure, the outer layer is polyethylene cloth or polyimide cloth, and the inner layer is a waterproof breathable layer.
According to the ionizing radiation protective clothing, preferably, the waterproof breathable layer is a polytetrafluoroethylene film.
According to the ionizing radiation protective garment as described above, preferably, the inner layer structure is an organic fiber.
According to the ionizing radiation protective clothing, preferably, the organic fibers are obtained by blending acrylic fibers and polyurethane elastic fibers according to the weight ratio of 5-15: 1.
The invention has the beneficial effects that:
(1) the protective clothing of the invention has excellent ionizing radiation resistance, especially gamma ray resistance, and the shielding rate of 241Am source gamma rays can reach 77.9%.
(2) The protective clothing does not contain lead, so that the harm of the lead to human bodies and the environment is reduced.
(3) The protective clothing has good water and oil resistance besides the ionizing radiation resistance.
Detailed Description
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of the stated features, steps, operations, and/or combinations thereof, unless the context clearly indicates otherwise.
In order to make the technical solutions of the present invention more clearly understood by those skilled in the art, the technical solutions of the present invention will be described in detail below with reference to specific embodiments.
The instruments, reagents, materials and the like used in the following examples are conventional instruments, reagents, materials and the like in the prior art and are commercially available in a normal manner unless otherwise specified. Unless otherwise specified, the experimental methods, detection methods, and the like described in the following examples are conventional experimental methods, detection methods, and the like in the prior art.
EXAMPLE 1 protective clothing for ionizing radiation
The protective suit comprises an inner layer structure, an outer layer structure and a middle layer structure;
the outer layer structure is a double-layer structure, the outer layer is polyethylene cloth, and the inner layer is a waterproof breathable layer polytetrafluoroethylene film.
The intermediate layer structure is a coating structure, and the coating comprises the following components in parts by weight: 40 parts of erbium oxide, 10 parts of bismuth oxide, 5 parts of nano titanium dioxide, 20 parts of water-soluble polyurethane, 20 parts of silica gel and 1 part of polyethylene glycol.
The thickness of the middle layer coating was 1.5 mm.
The substrate cloth used in the middle layer is acrylic fiber knitted cloth.
The inner layer structure is obtained by blending and weaving acrylic fibers and polyurethane elastic fibers according to the weight ratio of 5: 1.
Example 2 an ionizing radiation protective garment
The protective suit comprises an inner layer structure, an outer layer structure and a middle layer structure;
the outer layer structure is a double-layer structure, the outer layer is polyethylene cloth, and the inner layer is a waterproof breathable layer polytetrafluoroethylene film.
The intermediate layer structure is a coating structure, and the coating comprises the following components in parts by weight: 50 parts of erbium oxide, 20 parts of bismuth oxide, 15 parts of nano titanium dioxide, 10 parts of water-soluble polyurethane, 30 parts of silica gel and 5 parts of polyethylene glycol.
The thickness of the middle layer coating was 1.5 mm.
The substrate cloth used in the middle layer is acrylic fiber knitted cloth.
The inner layer structure is obtained by blending and weaving acrylic fibers and polyurethane elastic fibers according to the weight ratio of 15: 1.
EXAMPLE 3 an ionizing radiation protective garment
The protective suit comprises an inner layer structure, an outer layer structure and a middle layer structure;
the outer layer structure is a double-layer structure, the outer layer is polyimide cloth, and the inner layer is a waterproof breathable layer polytetrafluoroethylene film.
The intermediate layer structure is a coating structure, and the coating comprises the following components in parts by weight: 45 parts of erbium oxide, 15 parts of bismuth oxide, 10 parts of nano titanium dioxide, 15 parts of water-soluble polyurethane, 25 parts of silica gel and 3 parts of polyethylene glycol.
The thickness of the middle layer coating was 3 mm.
The substrate cloth used in the middle layer is acrylic fiber knitted cloth.
The inner layer structure is formed by blending and weaving acrylic fibers and polyurethane elastic fibers according to the weight ratio of 10: 1.
EXAMPLE 4 protective clothing for ionizing radiation
The protective suit comprises an inner layer structure, an outer layer structure and a middle layer structure;
the outer layer structure is a double-layer structure, the outer layer is polyimide cloth, and the inner layer is a waterproof breathable layer polytetrafluoroethylene film.
The intermediate layer structure is a coating structure, and the coating comprises the following components in parts by weight: 45 parts of erbium oxide, 15 parts of bismuth oxide, 10 parts of nano titanium dioxide, 15 parts of water-soluble polyurethane, 25 parts of silica gel and 3 parts of polyethylene glycol.
The thickness of the middle layer coating was 3 mm.
The substrate cloth used in the middle layer is acrylic fiber knitted cloth.
The inner layer structure is formed by blending and weaving acrylic fibers and polyurethane elastic fibers according to the weight ratio of 15: 1.
Comparative example 1
The difference from the example 3 is that the coating material comprises 60 parts by weight of erbium oxide, and the rest is the same as the example 3.
Comparative example 2
The difference from example 3 is that the coating thickness is 1mm, otherwise the same as example 3.
Comparative example 3
The difference from example 3 is that the outer layer is a double-layer polytetrafluoroethylene film, and the rest is the same as example 3.
Application example
The radiation protection performance of the protective clothing of the examples 1 to 4 and the comparative examples 1 to 3 is tested.
(1) X-ray resistance test
And (3) testing conditions are as follows: the shielding parameters obtained by spot testing on the sheet of protective clothing described above using 120KV, 2.5mmA X-rays are shown in Table 1 below.
TABLE 1
(2) Gamma ray prevention Performance test
And (3) testing conditions are as follows:
137a Cs source: the gamma photon energy is 0.661MeV in a micro-Curie level, is in a liquid state and is packaged in a flat plastic cylinder;
60a Co source: the gamma photon energy is 1.17MeV at the microscopic level, is in a liquid state and is packaged in a flat plastic cylinder;
241am source: the gamma photon energy is 0.059MeV at the microscopic level, is in a liquid state and is packaged in a flat plastic cylinder;
the energy spectrum measurement of the gamma radioactive source is carried out on the prepared sample by adopting a NaI scintillation spectrometer, the gamma ray shielding rate of the sample is determined by counting the change, and the obtained data is shown in a table 2.
TABLE 2
In addition, when the protective clothing is subjected to waterproof and oil-proof performance tests, the waterproof and oil-proof performance of the protective clothing in the embodiment of the invention is obviously superior to that of the protective clothing in the comparative example 3.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (7)
1. An ionizing radiation protective garment, characterized in that the protective garment comprises an inner layer structure, an outer layer structure and an intermediate layer structure;
the intermediate layer structure is a coating structure, and the coating comprises the following components in parts by weight: 40-50 parts of erbium oxide, 10-20 parts of bismuth oxide, 5-15 parts of nano titanium dioxide, 10-20 parts of water-soluble polyurethane, 20-30 parts of silica gel and 1-5 parts of polyethylene glycol.
2. The protective garment of claim 1, wherein the intermediate layer coating has a thickness of 1.5 to 3 mm.
3. The ionizing radiation protective garment according to claim 1, wherein the matrix fabric used in the intermediate layer is a woven, knitted, warp-knitted or non-woven fabric layer of cotton, hemp, silk, polyester, acrylic or blends thereof.
4. The protective garment according to claim 1, wherein the outer layer structure is a double-layer structure, the outer layer is polyethylene cloth or polyimide cloth, and the inner layer is a waterproof and breathable layer.
5. The ionizing radiation protective garment according to claim 4, wherein said waterproof breathable layer is a polytetrafluoroethylene membrane.
6. The ionizing radiation protective garment of claim 1, wherein said inner structure is an organic fiber.
7. The ionizing radiation protective garment according to claim 6, wherein the organic fibers are obtained by blending acrylic fibers and polyurethane elastic fibers according to a weight ratio of 5-15: 1.
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CN201911304242.9A CN110838379B (en) | 2019-12-17 | 2019-12-17 | Ionizing radiation protective clothing |
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CN201911304242.9A CN110838379B (en) | 2019-12-17 | 2019-12-17 | Ionizing radiation protective clothing |
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CN110838379A CN110838379A (en) | 2020-02-25 |
CN110838379B true CN110838379B (en) | 2021-05-18 |
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CN111572122A (en) * | 2020-06-10 | 2020-08-25 | 苏州启燕新材料科技有限公司 | Waterproof ventilative type protective clothing |
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DE10340124A1 (en) * | 2002-12-17 | 2004-07-01 | Bayer Ag | Lead-free mixture as a radiation protection additive |
US8022116B2 (en) * | 2003-07-18 | 2011-09-20 | Advanced Shielding Components, Llc | Lightweight rigid structural compositions with integral radiation shielding including lead-free structural compositions |
KR102180159B1 (en) * | 2012-11-27 | 2020-11-18 | 교에이샤 케미칼 주식회사 | Composition for hardcoat and molded article with hardcoat layer |
CN103778986A (en) * | 2014-01-13 | 2014-05-07 | 扬州锦江有色金属有限公司 | Multifunctional nuclear radiation protective garment |
CN108948463A (en) * | 2018-01-11 | 2018-12-07 | 天津天颐科苑科技有限公司 | A kind of X, gamma Rays and neutron radiation protection material and preparation method thereof |
CN109171056B (en) * | 2018-09-15 | 2021-04-16 | 子午线(北京)服装有限公司 | Protective clothing capable of preventing ionizing radiation and electromagnetic radiation |
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