CN104924731A - Composite production process for rolled flexible lead-free gamma shielding material - Google Patents
Composite production process for rolled flexible lead-free gamma shielding material Download PDFInfo
- Publication number
- CN104924731A CN104924731A CN201510315075.3A CN201510315075A CN104924731A CN 104924731 A CN104924731 A CN 104924731A CN 201510315075 A CN201510315075 A CN 201510315075A CN 104924731 A CN104924731 A CN 104924731A
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- Prior art keywords
- shielding material
- unleaded
- gamma shielding
- flexible
- rolling
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Classifications
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- 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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/15—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state
-
- 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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
-
- 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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
-
- 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
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/16—Drying; Softening; Cleaning
Abstract
The invention discloses a composite production process for a rolled flexible lead-free gamma shielding material. The composite production process comprises the following steps: taking a flexible lead-free shielding film base cloth, obtained after calendaring, as a raw material, spraying composite rubber on the surface of the base cloth, conducting roller rolling compounding on fiber cloth and the base cloth, conducting heating and curing on the base clot and the fiber cloth, performing air drying and curing, finally rolling with a roller to obtain the rolled flexible lead-free gamma shielding material. According to the process, excessive operation during the common production process is eliminated; moreover, the energy consumption is reduced, and the production efficiency is improved. In addition, through the adjustment of the production process, the fraction defective of the rolled flexible lead-free gamma shielding material, obtained through production, is remarkably reduced, and the quality of the rolled flexible lead-free gamma shielding material is improved.
Description
Technical field
The present invention relates to and belong to nuclear radiation protection and Shielding Materials for Nuclear Radiation preparing technical field, particularly relate to the combined producing tech of the flexible unleaded gamma shielding material of a kind of rolling.
Background technology
Along with Application of Nuclear Technology plays more and more important effect in RADIATION PROCESSING, medical diagnosis and national defense and military etc., the number of practitioner also rises thereupon.But while bringing convenient and enjoyment, various ray also also brings harm to the mankind to a certain extent, therefore, reduce the occupational exposure level of practitioner in all kinds of radiological operations, ensure that the life and health of radioactivity practitioner is very important.
γ radiation protection material is divided into substrate and fiber two parts, generally speaking, now more and more extensive to thin product application, and though be applied on the Related products such as resistance to burning vest, life raft or industrial raincoat quite universal.But, the protective garment of nuclear technology field is due to its base material---combining closely of gamma shielding film and fibrous material, and still locate under study for action, directly form thermoplastic/thermosetting composite with hot pressing mode at present, but usually only can make bulk, being not suitable for for continuous seepage is thin goods.
Therefore, how to improve the complex technique of base material and fibrous material, make to reach bi-material and engage each other closely, become the important key promoting γ radiation protection material intensity, elastic performance.
Summary of the invention
For above-mentioned Problems existing, the object of the invention is to provide a kind of flexible unleaded gamma shielding Material cladding technique, and it can make the flexible unleaded shielding material of γ engage closely with fiber cloth, and then promotes the mechanical property of gamma shielding material, increases the practicality of product.
In order to achieve the above object, the technical solution used in the present invention is as follows: the combined producing tech of the flexible unleaded gamma shielding material of a kind of rolling, by the surface spraying compounded rubber of raw material base cloth, fiber cloth is therewith rolled compound through roller bearing, Ji Bu and fiber cloth are once heating and curing and process, through air-dry, solidification, finally by the volume process of cylinder, obtain the flexible unleaded gamma shielding material of rolling, its detailed production stage comprises the following steps:
1) glue spraying process: spray with the upper surface of employing fluorine silicon compounded rubber to base cloth on coating machine, wherein fluorubber and silicon rubber 0.05 ~ 0.15: 1 mixture formed by weight;
2) compound is rolled: the rubber spray-coating surface of base cloth step 1) obtained and fiber cloth roll composite molding through the roller bearing heated, and complete heating, obtain composite molding shielding material in shaping process;
3) air-dry solidification: through step 2) in the composite molding shielding material that obtains through carrying out air-dry and curing operation between roller;
4) reel forming: the shielding material of the composite molding after the air-dry and solidification obtained in step 3) is combined rolling with barrier film, and wherein barrier film is arranged on the lower surface of base cloth, obtains the flexible unleaded gamma shielding material of rolling.
The present invention passes through calendering: industrial sulfuration process, the surface spraying fluorine silicon compounded rubber of the flexibility obtained after process unleaded gamma shielding thin film based cloth, fibrous material is therewith rolled compound through heat-treated roller bearing simultaneously, gamma shielding material base cloth and fiber cloth are once heating and curing and process; Again through air-dry, make it solidify, eventually pass through roller bearing and gamma shielding material is formed rolling.
The material of base cloth of the present invention is flexible unleaded gamma shielding film, and the thickness of base cloth is 0.5mm; The thickness of the protective garment produced eventually through base cloth by thickness and then the control of base cloth and weight, prevent the weight of protective garment excessive, convenient dress, and the overall weight of the protective garment that thickness limited base cloth is produced is at 5-6kg.
Step 1 of the present invention) in after spraying operation process, raw material base cloth is toasted 5 ~ 10 minutes at 80 DEG C ~ 100 DEG C.
Step 2 of the present invention) operating process in, the temperature of heating is heating-up temperature 50 DEG C ~ 80 DEG C.
Step 2 of the present invention) operating process in, the roller bearing spacing of the roller bearing of heating is less than the gross thickness of Ji Bu and fiber cloth; Roller bearing of the present invention adopts hollow, and inside is in oily heat cycles, ceaselessly adopts motor to heat oil, and heat passes through the circulating transfer of oil to roller bearing.Generate heat when ensureing roller bearing work thus; The adjustable range of the spacing of roller bearing is 0.4 mm ~ 0.55 mm.
Fiber cloth of the present invention selects aramid fabric, knitted elastic blended cloth, the one in warp knitting cloth three kinds, and the thickness of fiber cloth is 0.2mm; Ensure that final products have certain working strength under low quality by selecting of fiber cloth, and then promote the total system of final products.
Step 3 of the present invention) air-dry and curing operation process in, through hot air drying after bonding, adopt 30 kilowatts of super large air flow dryers, its operating temperature is 100 DEG C ~ 140 DEG C, and the operating time is 10 ~ 15 minutes.
Barrier film of the present invention is polyester PET thin film, is mainly used in preventing from bonding between gamma shielding thin-film material and spool.
The invention has the advantages that: this art inventions simplifies production technology, reduce energy resource consumption simultaneously, improve production efficiency.In addition, through the adjustment of this kind of production technology, the product fraction defective producing the flexible unleaded gamma shielding protective materials of the rolling obtained is obviously lower, improves the quality of products.The flexibility made unleaded gamma shielding material has good gamma ray shielding performance, and there is good mechanical property, after tested, it has higher intensity and flexible preferably, can not only meet and can meet complex-shaped nuclear instrument equipment perimeter defense, and gamma radiation protective garment can be made.
Accompanying drawing explanation
Fig. 1 is a kind of flexible unleaded gamma shielding Material cladding process schematic representation.
In figure: 1 fiber cloth, 2 base cloth, 3 roller bearings, 4 diffusion barriers, 5 complex fabric cloths.
Detailed description of the invention
Illustrate that the present invention is described in further detail with detailed description of the invention below in conjunction with accompanying drawing.
embodiment 1:the combined producing tech of the flexible unleaded gamma shielding material of a kind of rolling as shown in Figure 1.
1) glue spraying process: fluorubber and silicone gum rubber compounded rubber as the adhesive glue between substrate and fiber, weight ratio 0.05: 1; Compounded rubber applies in the unleaded gamma shielding film one side of flexibility, and at 80 DEG C, cures 10 minutes after application.Fluorubber is sprayed on the unleaded gamma shielding film surface of flexibility of 0.5 mm of processing in early stage film forming.
2) compound is rolled: the described flexibility unleaded gamma shielding film of spraying step (1) obtained and the large knitted elastic blended cloth of the elasticity of light weight, thickness is 0.2 mm, through being heated to the roller bearing of 80 DEG C, roller bearing spacing is 0.55 mm, roll composite molding, heating can be completed simultaneously, be more conducive to gamma shielding film and the quick compound of fibrous material, reduce processing step, enhance productivity.
3) air-dry solidification: the material after the gamma shielding film that obtains in step (2) and the large fibrous material composite molding of lightweight intensity, composite membrane is placed in dry under the hot blast of 100 DEG C 15 minutes air-dry to solidification.
4) reel forming: the gamma shielding material of the composite molding obtained in step (3) is obtained the flexible unleaded gamma shielding thin-film material of rolling by the rolling of associating polyester PET thin film barrier film.
embodiment 2:the combined producing tech of the flexible unleaded gamma shielding material of a kind of rolling as shown in Figure 1.
1) glue spraying process: fluorubber and silicone gum rubber compounded rubber as the adhesive glue between substrate and fiber, weight ratio 0.1: 1; Compounded rubber applies in the unleaded gamma shielding film one side of flexibility, and at 100 DEG C, cures 10 minutes after application.Fluorubber is sprayed on the unleaded gamma shielding film surface of flexibility of 0.5 mm of processing in early stage film forming.
2) roll compound: the unleaded gamma shielding film of described flexibility of the spraying that step (1) is obtained with through spreading all over, thickness is 0.2 mm, through being heated to the roller bearing of 70 DEG C, roller bearing spacing is 0.45 mm, roll composite molding, heating can be completed simultaneously, be more conducive to gamma shielding film and the quick compound of fibrous material, reduce processing step, enhance productivity.
3) air-dry solidification: the material after the gamma shielding film that obtains in step (2) and the large fibrous material composite molding of lightweight intensity, composite membrane is placed in dry under the hot blast of 120 DEG C 12 minutes air-dry to solidification.
4) reel forming: the gamma shielding material of the composite molding obtained in step (3) is obtained the flexible unleaded gamma shielding thin-film material of rolling by the rolling of associating polyester PET thin film barrier film.
embodiment 3:the combined producing tech of the flexible unleaded gamma shielding material of a kind of rolling as shown in Figure 1.
1) glue spraying process: fluorubber and silicone gum rubber compounded rubber as the adhesive glue between substrate and fiber, weight ratio 0.15: 1; Compounded rubber applies in the unleaded gamma shielding film one side of flexibility, and at 90 DEG C, cures 5 minutes after application.Fluorubber is sprayed on the unleaded gamma shielding film surface of flexibility of 0.5 mm of processing in early stage film forming.
2) compound is rolled: the described flexibility unleaded gamma shielding film of spraying step (1) obtained and the large aramid fabric of intensity, thickness is 0.2 mm, through being heated to the roller bearing of 50 DEG C, roller bearing spacing is 0.4 mm, roll composite molding, heating can be completed simultaneously, be more conducive to gamma shielding film and the quick compound of fibrous material, reduce processing step, enhance productivity.
3) air-dry solidification: the material after the gamma shielding film that obtains in step (2) and the large fibrous material composite molding of lightweight intensity, composite membrane is placed in dry under the hot blast of 150 DEG C 10 minutes air-dry to solidification.
4) reel forming: the gamma shielding material of the composite molding obtained in step (3) is obtained the flexible unleaded gamma shielding thin-film material of rolling by the rolling of associating polyester PET thin film barrier film.
In the combined producing tech of two-wheel bonded type gamma shielding material of the present invention, due to composite rolling wheel is heated in adhesion process, make in production process, only to need First air solidization to process, simplify production technology, reduce the energy resource consumption of 20%, improve production efficiency.And through test, the gamma shielding material that this explained hereafter goes out has intensity flexible and larger preferably, significantly enhances gamma shielding material mechanical performance.
embodiment 4:under the same conditions contrast test is carried out to process conditions corresponding in embodiment 1-3, wherein the result of contrast test is as shown in the table: (scrim material wherein adopted in comparative example 1 is knitted elastic blended cloth, and the scrim material that comparative example 2 adopts is aramid fabric)
Can be learnt by upper table; Scrim material select the physical property finally determining final products, be hot strength and the elongation at break of final products, operating temperature simultaneously in the weight ratio of fluorubber and silicon rubber and production process also produces certain impact to the performance of final products, when fluorubber content is too low, affect the pliability of final products, the elongation at break of final products is caused to decline, simultaneously when fluorubber content is too much, then affect the hot strength of final products, cause the hot strength of product to decline; Simultaneously when roller bearing temperature too low, the time length of side in production process can be caused; And when roller bearing temperature is too high, although the speed of production of improve, unnecessary energy dissipation can be caused.
It should be noted that, above-mentioned is only preferred embodiment of the present invention, is not used for limiting protection scope of the present invention, and equivalents done on the basis of above-described embodiment all belongs to protection scope of the present invention.
Claims (8)
1. the combined producing tech of the flexible unleaded gamma shielding material of rolling, it is characterized in that: by the surface spraying compounded rubber of raw material base cloth, fiber cloth is therewith rolled compound through roller bearing, Ji Bu and fiber cloth are once heating and curing and process, through air-dry, solidification, finally by the volume process of cylinder, obtain the flexible unleaded gamma shielding material of rolling, its detailed production stage comprises the following steps:
1) glue spraying process: spray with the employing upper surface of fluorine silicon compounded rubber to base cloth on coating machine, wherein fluorine silicon compounded rubber be fluorubber and silicon rubber by weight 0.05 ~ 0.15: 1 the mixture that forms of mode;
2) compound is rolled: the rubber spray-coating surface of base cloth step 1) obtained and fiber cloth roll composite molding through the roller bearing heated, and complete heating, obtain composite molding shielding material in shaping process;
3) air-dry solidification: through step 2) in the composite molding shielding material that obtains through carrying out air-dry and curing operation between roller;
4) reel forming: the shielding material of the composite molding after the air-dry and solidification obtained in step 3) is combined rolling with barrier film, and wherein barrier film is arranged on the lower surface of base cloth, obtains the flexible unleaded gamma shielding material of rolling.
2. the combined producing tech of the flexible unleaded gamma shielding material of rolling according to claim 1, is characterized in that: the material of described base cloth is flexible unleaded gamma shielding film, and the thickness of base cloth is 0.5mm.
3. the combined producing tech of the flexible unleaded gamma shielding material of rolling according to claim 1 and 2, is characterized in that: described step 1) in after spraying operation process, raw material base cloth is toasted 5 ~ 10 minutes at 80 DEG C ~ 100 DEG C.
4. the combined producing tech of the flexible unleaded gamma shielding material of rolling according to claim 1, is characterized in that: described step 2) operating process in, the temperature of heating is heating-up temperature 50 DEG C ~ 80 DEG C.
5. the combined producing tech of the flexible unleaded gamma shielding material of the rolling according to claim 1 or 4, it is characterized in that: step 2) operating process in, spacing between the roller bearing of heating and roller bearing is less than the gross thickness of Ji Bu and fiber cloth, and the adjustable range of the spacing of two roller bearings is 0.4 mm ~ 0.55 mm.
6. the combined producing tech of the flexible unleaded gamma shielding material of rolling according to claim 5, it is characterized in that: described fiber cloth selects aramid fabric, knitted elastic blended cloth, the one in warp knitting cloth three kinds, the thickness of fiber cloth is 0.2mm.
7. the combined producing tech of the flexible unleaded gamma shielding material of rolling according to claim 1, it is characterized in that: described step 3) air-dry and curing operation process in, its operating temperature is 100 DEG C ~ 140 DEG C, and the operating time is 10 ~ 15 minutes.
8. the combined producing tech of the flexible unleaded gamma shielding material of rolling according to claim 1, is characterized in that: described barrier film is polyester PET thin film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510315075.3A CN104924731B (en) | 2015-06-10 | 2015-06-10 | A kind of combined producing tech of the flexible unleaded gamma shielding material of rolling |
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| CN201510315075.3A CN104924731B (en) | 2015-06-10 | 2015-06-10 | A kind of combined producing tech of the flexible unleaded gamma shielding material of rolling |
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| CN104924731A true CN104924731A (en) | 2015-09-23 |
| CN104924731B CN104924731B (en) | 2017-03-01 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107841878A (en) * | 2017-09-27 | 2018-03-27 | 英纳能（北京）特种材料科技有限公司 | A kind of unleaded gamma ray shielding flexible composite and preparation method thereof |
| CN107901534A (en) * | 2017-10-25 | 2018-04-13 | 云南靖创液态金属热控技术研发有限公司 | A kind of liquid metal flexible shielding material and preparation method thereof |
| CN107973159A (en) * | 2017-12-11 | 2018-05-01 | 海宁文硕科技咨询有限公司 | A kind of compounding machine compound for umbrella cover |
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Patent Citations (5)
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| US20040004196A1 (en) * | 1998-12-07 | 2004-01-08 | Meridian Research And Development | Multiple hazard protection articles and methods for making them |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107841878A (en) * | 2017-09-27 | 2018-03-27 | 英纳能（北京）特种材料科技有限公司 | A kind of unleaded gamma ray shielding flexible composite and preparation method thereof |
| CN107841878B (en) * | 2017-09-27 | 2019-10-15 | 英纳能（北京）特种材料科技有限公司 | A kind of unleaded gamma ray shielding flexible composite and preparation method thereof |
| CN107901534A (en) * | 2017-10-25 | 2018-04-13 | 云南靖创液态金属热控技术研发有限公司 | A kind of liquid metal flexible shielding material and preparation method thereof |
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| CN107973159A (en) * | 2017-12-11 | 2018-05-01 | 海宁文硕科技咨询有限公司 | A kind of compounding machine compound for umbrella cover |
| CN107973159B (en) * | 2017-12-11 | 2019-08-02 | 扬州杭集工业园经济发展有限公司 | A kind of compounding machine compound for umbrella cover |
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| CN104924731B (en) | 2017-03-01 |
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