CN104361919A - Pipeline nuclear radiation shielding bandage - Google Patents
Pipeline nuclear radiation shielding bandage Download PDFInfo
- Publication number
- CN104361919A CN104361919A CN201410543933.5A CN201410543933A CN104361919A CN 104361919 A CN104361919 A CN 104361919A CN 201410543933 A CN201410543933 A CN 201410543933A CN 104361919 A CN104361919 A CN 104361919A
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- CN
- China
- Prior art keywords
- fiber
- radiation protection
- pipeline
- fibers
- nuclear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- G21F1/125—Laminated shielding materials comprising metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/02—Layer formed of wires, e.g. mesh
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/14—Layered products comprising a layer of metal next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/02—Composition of the impregnated, bonded or embedded layer
- B32B2260/021—Fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/04—Impregnation, embedding, or binder material
- B32B2260/046—Synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/306—Resistant to heat
- B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2571/00—Protective equipment
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Laminated Bodies (AREA)
Abstract
The invention relates to a pipeline nuclear radiation shielding bandage which comprises a radiation protection inner core layer and wrapping layers, wherein the radiation protection inner core layer is packaged between two wrapping layers; the radiation protection inner core layer is woven from radiation protection composite fibers in a warp and weft or three-dimensional manner; the radiation protection composite fibers are formed by performing automatic wrapping and weaving on metal inner core fibers and wrapped fibers; the metal inner core fibers at least comprise one lead alloy fiber, tungsten alloy fiber or tantalum alloy fiber; the wrapped fibers are carbon fibers, high-density polyethylene fibers, polytetrafluoroethylene fibers, polyphenylene sulfide fibers, polyarmide fibers or polyester fibers; the wrapping layers are made of thermal plastic resin and net-shaped reinforced fiber cloth inside the thermal plastic resin in a thermal grinding composite manner. The pipeline nuclear radiation shielding bandage is excellent in nuclear radiation protection property, has multiple functions of flame retardancy, oil prevention, puncture prevention, simplicity in contamination removal, and the like, is applicable to irregular components such as pipelines and valves, and can be widely applied to fields such as nuclear stations, hospitals and military nuclear facilities.
Description
Technical field
The present invention relates to technical field of nuclear radiation protection, particularly relate to a kind of pipeline nuclear radiation shield bandage.
Background technology
Nuclear science technology has been widely used in multiple fields such as national defence, the energy, industry, medical treatment, bring huge economic and social benefit, too increase people and contact various radiation and the chance threatened by it, nuclear and radiation safety problem is outstanding day by day and receive much concern.Radiation protection material is the key ensureing radiation place staff and public security with equipment, is also the effective means dissolving nuclear accident crisis, is the important leverage of military and civilian radiological safety protection, has active demand.
Because lead has good nuclear radiation protection effect and lower cost, be widely applied in nuclear radiation protection field.China have accumulated certain technology and experience in conventional radiation protective materials, but far can not meet the new demand that current nuclear technology and nuclear industry develop safely and fast.Stereotype, lead brick etc. generally provide stationary radiation to protect as protection body of wall or nuclear facilities main body, do not possess movability.Lead shield, stereotype, lead glass etc. also can be applied to the place that moving protection body maybe needs to provide temporarily protection, but radiation leakage has a big risk, builds that difficulty is high, utilization factor is low, suitable type is poor, is not suitable with the radiation protection of the special-shaped components such as pipeline valve.Based on the flexible protective of lead powder rubber screen, protective clothing etc., possess that removable and detachability is strong, the advantage of good leak tightness, but protection efficiency low (linear attenuation coefficient is little), poor stability (matrix easily aging, lead powder easily comes off), recycling rate of waterused are low (repeatedly after folding use, folding line place is damaged), use cost high (for guaranteeing the validity of protecting, need frequently change).Above-mentioned deficiency will be overcome based on the pipeline nuclear radiation protection bandage with the metal fibre of radiation protection function, be more suitable for the radiation protection of the special-shaped component such as pipeline, valve.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, propose a kind of pipeline nuclear radiation shield band, the fields such as nuclear power station, hospital, military nuclear armament can be widely used in.
Technical matters solved by the invention is realized by following scheme: a kind of pipeline nuclear radiation shield bandage, comprise radiation protection inner sandwich layer and clad, described radiation protection inner sandwich layer is encapsulated in the middle of described two pieces of clads, and described radiation protection inner sandwich layer is formed by radiation protection composition fiber longitude and latitude or 3 D weaving; Described radiation protection composition fiber is formed through automatic cored braiding by interior core fibre and core-spun fiber, described interior core fibre at least comprises a lead alloy fiber or tungalloy fiber or tantalum alloy fiber, and described core-spun fiber is carbon fiber or hdpe fiber or polytetrafluoroethylene fibre or polyphenylene sulfide fibre or polyamide fibre or dacron; Described clad to be rolled through heat by thermoplastic resin and the netted cloth of reinforcement fibers that is positioned at described thermoplastic resin inside and is composited.
In such scheme, described radiation protection inner sandwich layer (1) is one or more layers.
In such scheme, the thickness range of described radiation protection inner sandwich layer is 0.03 ㎜-10 ㎜, and require product thickness according to client and produce, one deck is 0.03 ㎜, MULTILAYER COMPOSITE, maximal value 10 ㎜, and the thickness of described clad is no more than 3mm.
In such scheme, the thickness of described netted cloth of reinforcement fibers is no more than 1mm.
In such scheme, the diameter range of described radiation protection composition fiber is 0.03 ㎜-0.6 ㎜.
In such scheme, the diameter of described interior core fibre is 0.02 ㎜-0.5 ㎜; The radical of described core-spun fiber is 16-32, and the diameter of described core-spun fiber is 100-150D.
In such scheme, described thermoplastic resin is polyurethane or Polyvinylchloride, and described netted cloth of reinforcement fibers is nylon or carbon fiber.
In such scheme, the width of described pipeline nuclear radiation shield band is 50 ㎜-200 ㎜, and thickness is 0.1 ㎜-80 ㎜.
In such scheme, the unit D of appearance is DENIER(danier) abbreviation, be a kind of fineness expression of man-made fiber, refer to the weight grams of the silk of 9000 meters long when official regain, also referred to as dawn number.D is larger, represents that yarn is thicker.
A kind of method making multilayer radiation protection inner sandwich layer, it is characterized in that, respectively with multifunctional binder by every block radiation protection inner sandwich layer block-by-block coating, flexible metal inner core block-by-block overlap after every block coating is placed in the wooden model of, under hot press effect, compacting is dried, thus forms multilayer radiation protection inner sandwich layer.
The invention has the beneficial effects as follows: this pipeline nuclear radiation protection bandage has excellent nuclear radiation protection performance and good flexibility, its protection effect regulates by optimizing metallic alloy fiber silk composition, it can possess anti-nuclear radiation, anti-electromagnetic radiation and anti-static electrification simultaneously, also can possess the several functions such as fire-retardant, grease proofing, easy decontamination, be applicable to the radiation protection of the special-shaped component such as pipeline, valve, the fields such as nuclear power station, hospital, military nuclear armament can be widely used in.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, technical scheme of the present invention is described in detail.
Fig. 1 is pipeline nuclear radiation shield bandage schematic cross-section of the present invention.
In figure: 1, radiation protection inner sandwich layer; 2, clad.
Embodiment
Below by the mode of embodiment, technical solution of the present invention is described in detail, but protection scope of the present invention is not limited to described embodiment.
embodiment 1
To choose 1 diameter be the lead alloy fiber of 0.4mm as interior core fibre, 16 diameters is
150Dcarbon fiber as core-spun fiber, carry out automatic cored braiding obtain lead alloy fiber/carbon fiber composition fiber silk that diameter is 0.5 ㎜.On automatic longitude and latitude or three dimensional knitting machine, lead alloy fiber/carbon fiber composition fiber silk is carried out longitude and latitude interlacing and form the radiation protection inner sandwich layer 1 that thickness is 1.5mm.Be that two layers of thermoplastic polyurethane put into by the netlike carbon fiber cloth of 0.3mm by thickness, hot pressing forms the clad 2 that thickness is 0.5mm.Be that the radiation protection inner sandwich layer 1 of 1.5mm is clipped in the middle of clad 2 that two pieces of thickness are 0.5mm and carries out secondary encapsulation by above-mentioned thickness, make the pipeline nuclear radiation shield bandage that thickness is 2.5mm.NaI spectrometer is tested its radiation protection performance, and radioactive source selects Cs-137.After tested, thickness is the pipeline nuclear radiation shield bandage of 2.5mm, and its radiation protection ability is 1.4mmPb.
embodiment 2
Interior core fibre chooses the tantalum alloy fiber that lead alloy fiber that 1 diameter is 0.3mm and 1 diameter are 0.1mm; Core-spun fiber selects 16 diameters to be
150Dpolyamide fibre, warp
automatic cored braidingobtain lead alloy fiber/tantalum alloy fiber/polyamide fibre composition fiber silk that diameter is 0.5mm.On automatic longitude and latitude or three dimensional knitting machine, lead alloy fiber/tantalum alloy fiber/polyamide fibre composition fiber silk is carried out longitude and latitude interlacing and form the radiation protection inner sandwich layer 1 that thickness is 1.5mm.Be that the netted nylon cloth of 0.3mm puts into two layers of thermoplastic Polyvinylchloride by thickness, hot pressing forms the clad 2 that thickness is 0.6mm.Be that the radiation protection inner sandwich layer 1 of 1.5mm is clipped in the middle of clad 2 that two pieces of thickness are 0.6mm and carries out secondary encapsulation by above-mentioned thickness, make the pipeline nuclear radiation shield bandage that thickness is 2.7mm.NaI spectrometer is tested its radiation protection performance, and radioactive source selects Cs-137.After tested, thickness is the pipeline nuclear radiation shield bandage of 2.7mm, and its radiation protection ability is 1.5mmPb.
embodiment 3
Interior core fibre chooses the tungalloy fiber that 1 diameter is 0.4mm, and core-spun fiber selects 16 diameters to be
150Dhdpe fiber, obtain through the braiding of automatic cored tungalloy fiber/hdpe fiber composition fiber silk that diameter is 0.5mm.On automatic longitude and latitude or three dimensional knitting machine, tungalloy fiber/hdpe fiber composition fiber silk is carried out longitude and latitude interlacing and form the radiation protection inner sandwich layer 1 that thickness is 1.5mm.Be that two layers of thermoplastic polyurethane put into by the netlike carbon fiber cloth of 0.3mm by thickness, hot pressing forms the clad 2 that thickness is 0.6mm.Be that the radiation protection inner sandwich layer 1 of 1.5mm is clipped in the middle of clad 2 that two pieces of thickness are 0.6mm and carries out secondary encapsulation by thickness, make the pipeline nuclear radiation shield bandage that thickness is 2.7mm.NaI spectrometer is tested its radiation protection performance, and radioactive source selects Cs-137.After tested, thickness is the pipeline nuclear radiation shield bandage of 2.7 mm, and its radiation protection ability is 1.6mmPb.
embodiment 4
Interior core fibre chooses the lead alloy fiber that 1 diameter is 0.6mm; Core-spun fiber selects 32 diameters to be
100Dpolytetrafluoroethylene fibre, warp
automatic cored braidingobtain lead alloy fiber/polytetrafluoroethylene fibre composition fiber silk that diameter is 0.7mm.On automatic longitude and latitude or three dimensional knitting machine, lead alloy fiber/polytetrafluoroethylene fibre composition fiber silk is carried out longitude and latitude interlacing and form the radiation protection inner sandwich layer that thickness is 2mm, then be the radiation protection inner sandwich layer of 2mm by 5 pieces of thickness, use multifunctional binder block-by-block coating respectively, flexible metal inner core block-by-block overlap after every block coating is placed in a special wooden model, under the hot press effect of temperature 300 degree, pressure 300 tons, compacting is dried, and forms the radiation protection inner sandwich layer 1 that thickness is 10mm; Be that the netted nylon cloth of 1mm puts into two layers of thermoplastic Polyvinylchloride by thickness, hot pressing forms the clad 2 that thickness is 1.5mm.Be that the radiation protection inner sandwich layer of 10mm is clipped in the middle of clad 2 that two pieces of thickness are respectively 1.5mm and carries out secondary encapsulation by above-mentioned thickness, make the pipeline nuclear radiation shield band that thickness is 13mm.NaI spectrometer is tested its radiation protection performance, and radioactive source selects Cs-137.After tested, thickness is the pipeline nuclear radiation shield bandage of 13mm, and its radiation protection ability is 9.9mmPb.
embodiment 5
Interior core fibre chooses the tantalum alloy fiber that 1 diameter is 0.01mm; Core-spun fiber selects 16 diameters to be
100Dpolyphenylene sulfide fibre, warp
automatic cored braidingobtain tantalum alloy fiber/polyphenylene sulfide fibre composition fiber silk that diameter is 0.015mm.On automatic longitude and latitude or three dimensional knitting machine, tantalum alloy fiber/polyphenylene sulfide fibre composition fiber silk is carried out longitude and latitude interlacing and form the radiation protection inner sandwich layer 1 that thickness is 0.03mm.Be that the netted nylon cloth of 0.2mm puts into two layers of thermoplastic Polyvinylchloride by thickness, hot pressing forms the clad 2 that thickness is 0.3mm.Be that the radiation protection inner sandwich layer 1 of 0.03mm is clipped in the middle of clad 2 that two pieces of thickness are 0.3mm and carries out secondary encapsulation by above-mentioned thickness, make the pipeline nuclear radiation shield band that thickness is 0.63mm.NaI spectrometer is tested its radiation protection performance, and radioactive source selects Cs-137.After tested, thickness is the pipeline nuclear radiation shield band of 0.63mm, and its radiation protection ability is 0.04mmPb.
embodiment 6
Interior core fibre chooses the tungalloy fiber that 1 diameter is 0.2mm, and core-spun fiber selects 16 diameters to be
150Dpolyester of high density fiber, obtain through the braiding of automatic cored tungalloy fiber/polyester of high density fiber composite filament that diameter is 0.3mm.On automatic longitude and latitude or three dimensional knitting machine, tungalloy fiber/polyester of high density fiber composite filament is carried out longitude and latitude interlacing and form the radiation protection inner sandwich layer that thickness is 1mm, then be the flexible metal inner core of 1mm by 5 pieces of thickness, use multifunctional binder block-by-block coating respectively, flexible metal inner core block-by-block overlap after every block coating is placed in a special wooden model, under the hot press effect of temperature 300 degree, pressure 300 tons, compacting is dried, and forms the radiation protection inner sandwich layer 1 that thickness is 5mm; .Be that two layers of thermoplastic polyurethane put into by the netlike carbon fiber cloth of 0.3mm by thickness, hot pressing forms the clad 2 that thickness is 0.5mm.Be that the radiation protection inner sandwich layer 1 of 5mm is clipped in the middle of clad 2 that two pieces of thickness are respectively 0.5mm and carries out secondary encapsulation by thickness, make the pipeline nuclear radiation shield band that thickness is 6 mm.NaI spectrometer is tested its radiation protection performance, and radioactive source selects Cs-137.After tested, thickness is the pipeline nuclear radiation shield bandage of 6mm, and its radiation protection ability is 5.3mmPb.
Above-described specific embodiment; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a pipeline nuclear radiation shield bandage, it is characterized in that: comprise radiation protection inner sandwich layer (1) and clad (2), described radiation protection inner sandwich layer (1) is encapsulated in the middle of described two pieces of clads (2), and described radiation protection inner sandwich layer is formed by radiation protection composition fiber longitude and latitude or 3 D weaving; Described radiation protection composition fiber is formed through automatic cored braiding by metal inside fiber and core-spun fiber, described metal inside fiber at least comprises a lead alloy fiber or tungalloy fiber or tantalum alloy fiber, and described core-spun fiber is carbon fiber or hdpe fiber or polytetrafluoroethylene fibre or polyphenylene sulfide fibre or polyamide fibre or polyester of high density fiber; Described clad to be rolled through heat by thermoplastic resin and the netted cloth of reinforcement fibers that is positioned at described thermoplastic resin inside and is composited.
2. a kind of pipeline nuclear radiation shield bandage according to claim 1, is characterized in that: described radiation protection inner sandwich layer (1) is one or more layers.
3. a kind of pipeline nuclear radiation shield bandage according to claim 2, is characterized in that: the thickness of described radiation protection inner sandwich layer (1) is 0.03 ㎜-10 ㎜, and the thickness of described clad (2) is no more than 3mm.
4. a kind of pipeline nuclear radiation shield bandage according to claim 3, is characterized in that: the thickness of described netted cloth of reinforcement fibers is no more than 1mm.
5. a kind of pipeline nuclear radiation shield bandage according to claim 3 or 4, is characterized in that: the diameter of described radiation protection composition fiber is 0.03 ㎜-0.6 ㎜.
6. a kind of pipeline nuclear radiation shield bandage according to claim 5, is characterized in that: the diameter of described metal inside fiber is 0.02 ㎜-0.5 ㎜; The radical of described core-spun fiber is 16-32, and the diameter of described core-spun fiber is 100-150D.
7. a kind of pipeline nuclear radiation shield bandage according to claim 1 or 2 or 3 or 4 or 6, it is characterized in that: described thermoplastic resin is polyurethane or Polyvinylchloride, described netted cloth of reinforcement fibers is nylon cloth or carbon cloth.
8. a kind of pipeline nuclear radiation shield bandage according to claim 1 or 2 or 3 or 4 or 6, is characterized in that: the width of described pipeline nuclear radiation shield band is 50 ㎜-200 ㎜, and thickness is 0.1 ㎜-80 ㎜.
9. one kind makes the method for multilayer radiation protection inner sandwich layer in claim 2, it is characterized in that, respectively with multifunctional binder by every block radiation protection inner sandwich layer block-by-block coating, flexible metal inner core block-by-block overlap after every block coating is placed in the wooden model of, under hot press effect, compacting is dried, thus forms multilayer radiation protection inner sandwich layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410543933.5A CN104361919A (en) | 2014-10-15 | 2014-10-15 | Pipeline nuclear radiation shielding bandage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410543933.5A CN104361919A (en) | 2014-10-15 | 2014-10-15 | Pipeline nuclear radiation shielding bandage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104361919A true CN104361919A (en) | 2015-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410543933.5A Pending CN104361919A (en) | 2014-10-15 | 2014-10-15 | Pipeline nuclear radiation shielding bandage |
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| Country | Link |
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| CN (1) | CN104361919A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107460572A (en) * | 2016-06-03 | 2017-12-12 | 松下知识产权经营株式会社 | Fibre and metallic fiber |
| CN107557948A (en) * | 2017-11-01 | 2018-01-09 | 陕西伦琴医疗射线科技有限责任公司 | One kind absorbs scattered rays fabric and preparation method thereof |
| CN109578702A (en) * | 2018-12-13 | 2019-04-05 | 中国恩菲工程技术有限公司 | Accelerator room pipeline through-wall hole factors for radiation shielding device and accelerator room |
| CN113183578A (en) * | 2021-04-23 | 2021-07-30 | 成都盛帮密封件股份有限公司 | Composite material for nuclear radiation protective clothing and preparation method thereof |
| GB2597896A (en) * | 2018-08-14 | 2022-02-16 | Nordson Corp | Binder permeated ionizing radiation shielding panels, method of construction of ionizing radiation shielding panels and an x-ray inspection system |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107557948A (en) * | 2017-11-01 | 2018-01-09 | 陕西伦琴医疗射线科技有限责任公司 | One kind absorbs scattered rays fabric and preparation method thereof |
| GB2597896A (en) * | 2018-08-14 | 2022-02-16 | Nordson Corp | Binder permeated ionizing radiation shielding panels, method of construction of ionizing radiation shielding panels and an x-ray inspection system |
| US11342090B2 (en) | 2018-08-14 | 2022-05-24 | Nordson Corporation | Binder permeated ionizing radiation shielding panels, method of construction of ionizing radiation shielding panels and an x-ray inspection system employing such panels |
| GB2597896B (en) * | 2018-08-14 | 2023-06-07 | Nordson Corp | Binder permeated ionizing radiation shielding panels, method of construction of ionizing radiation shielding panels and an x-ray inspection system |
| CN109578702A (en) * | 2018-12-13 | 2019-04-05 | 中国恩菲工程技术有限公司 | Accelerator room pipeline through-wall hole factors for radiation shielding device and accelerator room |
| CN113183578A (en) * | 2021-04-23 | 2021-07-30 | 成都盛帮密封件股份有限公司 | Composite material for nuclear radiation protective clothing and preparation method thereof |
| CN113183578B (en) * | 2021-04-23 | 2022-10-14 | 成都盛帮密封件股份有限公司 | Composite material for nuclear radiation protective clothing and preparation method thereof |
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