CN104514141A - Microwave electromagnet shielding fabric and manufacturing method thereof - Google Patents
Microwave electromagnet shielding fabric and manufacturing method thereof Download PDFInfo
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- CN104514141A CN104514141A CN201310444135.2A CN201310444135A CN104514141A CN 104514141 A CN104514141 A CN 104514141A CN 201310444135 A CN201310444135 A CN 201310444135A CN 104514141 A CN104514141 A CN 104514141A
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Abstract
The invention discloses a microwave electromagnet shielding fabric. The fabric comprises a basic layer and a metal composite coating. The basic layer is made of terylene network silk fabrics and is characterized in that a metal composite coating is arranged on the basic layer, wherein the bottom layer of the metal composite coating is a silver coating with a silver content of 4 to 10 grams per square meter, and the surface layer of the metal composite coating is an aurous coating, and the gold (I) content is 13 to 20 grams per square meter. The shielding performance on electromagnet field is improved, the synergetic effect between metal layers is enhanced, and the effective thickness of fabrics is also taken into account, so the provided fabric can be used in a wide frequency range of 300 MHz-300 GHz, the shielding effectiveness is 60-90 dB, and the reflectivity can reach 98%. The provided fabric has high shielding effectiveness and a strong reflecting performance on microwave electromagnetic radiation, and thus is especially suitable for being applied to industries such as aviation, aerospace, military research, medical industry, mine industry, and the like.
Description
Technical field
The invention belongs to the technical field of Textile Engineering, specifically a kind of microwave electromagnetic loomage and manufacture method thereof needing the use of electromagnetic shielding occasion or dress.
Background technology
Along with the development of science and technology, our society enters electronic age.Electromagnetically shielding fabrics in the market, manufacture method both domestic and external, the overwhelming majority is metal or their compound, give on fiber or fabric, it is lower to ELECTROMAGNETIC RADIATION SHIELDING efficiency ratio, and the frequency range of application is narrower, as a kind of fabric for shielding electromagnetic wave and preparation method thereof of CN1280223A, disclose a kind of fabric for shielding electromagnetic wave, it is produced by following steps: (1) selects host material; (2) clean; (3) sensitization, activation; (4) electroless copper; (5) chemical nickel plating; (6) with the aqueous solution soaking loomage 4-12 second containing 0.8-1.2% ammonium chloride and 0.1-0.5% potassium sulfide or with containing 3% silicic acid, the solution of 1.5-2% antioxidant soaks loomage, then obtains finished product.Radiation-proof fabric of CN1199792A and preparation method thereof, disclose a kind of radiation-proof fabric, comprise the coat of metal that base fabrics, the base fabrics surface chemical plating method made by common textile fibers are coated with, to it is characterized in that in described base material except common textile fibers, the another synthetic fiber that polyblend containing fiber total amount 5 ~ 20%, containing the carbon black of 1 ~ 5% and the barium sulfate of 5 ~ 15% in the synthetic fiber that polyblend.The frequency of utilization scope of these Electromagnetically shielding fabrics is narrower, and shield effectiveness is lower, all can not meet the demand in market.
Summary of the invention
One object of the present invention is to provide a kind of microwave electromagnetic loomage, and this fabric is applicable to microwave frequency range, frequency spectrum is wider, and shield effectiveness is higher, can be used for high field intensity, high-frequency field, and can be used for the environment of land and ocean.
In order to realize this purpose, technical scheme of the present invention is: a kind of microwave electromagnetic loomage, comprise basic unit and metal composite cladding, the basic unit of this fabric is terylene net-thread fabric, it is characterized in that arranging metal composite cladding in this basic unit, the bottom of described metal composite cladding is plated metallic silver, and the content of silver is 4 ~ 10 grams/m, the surface layer of described metal composite cladding is sub-gold plate, and the content of sub-gold is 13 ~ 20 grams/m.According to a preferred embodiment of the invention, described terylene net-thread fabric is polyester FDY type 70D/24F, and density is 110 × 100, the twill-weave structure on 4 under 1.
Another object of the present invention is to the manufacture method that a kind of microwave electromagnetic loomage is provided, the fabric made is applicable to microwave frequency range, frequency spectrum is wider, shield effectiveness is higher, can be used for high field intensity, high-frequency field, and can be used for the environment of land and ocean.
To achieve these goals, technical scheme of the present invention is: a kind of manufacture method of microwave electromagnetic loomage, it is characterized in that described preparation method comprises the steps: A, makes base fabric; B, to carry out sputtering at Ji Bushang silver-plated, forms plated metallic silver, and the content of silver is 4 ~ 10 grams/m; C, on plated metallic silver, then carry out the sub-gold of single bath process chemical plating, form sub-gold plate, the content of sub-gold is 13 ~ 20 grams/m.
Wherein in step C, with the aqueous sulfuric acid activation of 5%, after distilled water washing, directly carry out the sub-gold of single bath process chemical plating, plating bath forms:
A liquid: CuSO
45H
2o 13 ~ 16g/l,
Sodium potassium tartrate tetrahydrate 26 ~ 28g/l,
AgNO
3 0.5~0.8g/l，
ZnSO
4·7H
2O 2.0g~4.0/l，
Al
2（SO
4）
3·8H
2O 0.5~1.5g/l，
Bipyridyl 0.5ml ~ 6/l,
NiSO
4·7H
2O 1.0~1.5g/l，
The rest is water;
B liquid: formaldehyde 10 ~ 12ml/l,
Inferior sodium phosphate 3 ~ 4g/l,
Polyethylene glycol 1.5 ~ 2.5g/l,
Ethanol 1.5 ~ 2.5ml/l,
The rest is water;
After A liquid B liquid is prepared respectively, B liquid is slowly poured in A liquid and mixes,
Being adjusted to pH value with NaOH is between 11 ~ 13, bath temperature: 38 ~ 45 DEG C, 35 ~ 45 minutes time;
Finished product is made after washing, oven dry.
The present invention is owing to improve emphatically the shield effectiveness to electromagnetic field, enhance the synergy between metal level, and the effective thickness improving fabric all takes into full account, can realize using in the frequency range that 300MHz ~ 300GHz is wider, shield effectiveness is 60 ~ 90dB, and reflectivity reaches 98%.The present invention has stronger shield effectiveness and higher reflection function to Microwave electromagnetic irradiation, is specially adapted to the uses such as Aeronautics and Astronautics, military project scientific research, health care and industrial enterprise.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is further described.
Microwave electromagnetic loomage of the present invention, is made up of basic unit and metal composite cladding, and described basic unit is terylene net-thread fabric, and described terylene net-thread adopts FDY type 70D/24F, and density is 110 × 100, the twill-weave structure on 4 under 1, fabric width 110cm.Sputtering is carried out silver-plated on basic unit, the content of silver is 4 ~ 10 grams/m, form the plated metallic silver with silver color minute surface, on plated metallic silver, carry out the sub-gold of single bath process chemical plating again, form sub-gold plate, the content of sub-gold is 13 ~ 20 grams/m, wherein Cu 9.8 ~ 11.5 grams/m, Ag 0.3 ~ 0.4 gram/m, Zn 1.6 ~ 2 grams/m, Al 0.65 ~ 0.8 gram/m and Ni 1.3 ~ 1.6 grams/m.According to a particular embodiment of the invention, in described sub-gold plate, each component is respectively Cu 10.68 grams/m, Ag 0.36 gram/m, Zn 1.8 grams/m, Al 0.72 gram/m and Ni 1.44 grams/m.
A manufacture method for microwave electromagnetic loomage, is characterized in that described preparation method is as follows: A, utilize terylene net-thread make frivolous smooth standardized base fabric; B, on base fabric, carry out sputtering silver-plated, forms the plated metallic silver with silver color minute surface; C, on plated metallic silver, then carry out the sub-gold of single bath process chemical plating, make finished product.
In steps A, utilize terylene net-thread, FDY type 70D/24F, density is 110*100, and the twill-weave structure on 4 under 1, fabric width 110cm makes frivolous smooth standardized base fabric.
In step B, base fabric is carried out degreasing, alligatoring, carry out in the sputtering equipment of high vacuum high pressure after dehumidifying, carry out 3 ~ 5 sputterings repeatedly, make the silver content of silver coating reach 4 ~ 10 grams/m, thus obtain the silver specular fabric with high reverse--bias.
In step C, the plated metallic silver obtained in step B, then carry out weak acid activation processing, directly enter the sub-gold of single bath process chemical plating after washing, the content of its sub-gold is 13 ~ 20 grams/m.
Be below specific embodiments of the invention.
Carry out sputtering after selecting 20 meter Ji Bu to carry out degreasing, alligatoring, dehumidifying silver-plated, then activate with the aqueous sulfuric acid of 5%, after distilled water washing, directly carry out the sub-gold of single bath process chemical plating.Plating bath forms:
A liquid: CuSO
45H
2o 13g/l,
Sodium potassium tartrate tetrahydrate 26g/l,
AgNO3 0.5g/l，
ZnSO
4·7H
2O 2.0g/l，
Al
2（SO
4）
3·8H
2O 0.5g/l，
Bipyridyl 0.5ml/l(alcohol liquid),
NiSO
4·7H
2O 1.5g/l，
The rest is water;
B liquid: formaldehyde 10ml/l,
Inferior sodium phosphate 3 g/l,
Polyethylene glycol (1000) 2 g/l,
Ethanol 2ml/l,
The rest is water;
After being prepared respectively by A liquid B liquid, stir B liquid slowly to pour in A liquid and mix, being adjusted to pH value with NaOH is 12, is then put into by fabric and carries out the sub-gold of single bath process chemical plating, bath temperature: 38 ~ 45 DEG C, 35 ~ 45 minutes time;
Finished product is made after washing, oven dry.
Embodiment 2
Carry out sputtering after selecting 20 meter Ji Bu to carry out degreasing, alligatoring, dehumidifying silver-plated, then activate with the aqueous sulfuric acid of 5%, after distilled water washing, directly carry out the sub-gold of single bath process chemical plating.Plating bath forms:
A liquid: CuSO
45H
2o 16g/l;
Sodium potassium tartrate tetrahydrate 28g/l,
AgNO
30.8 g/l，
ZnSO
4·7H
2O 4g/l；
Al
2（SO4）
3·8H
2O 1.5g/l；
Bipyridyl 0.5g/l(alcohol liquid),
NiSO4 ·7H
2O 1.0g/l，
The rest is water;
B liquid: formaldehyde 12ml/l,
Inferior sodium phosphate 4 g/l,
Polyethylene glycol (1000) 2 g/l,
Ethanol 1.5ml/l,
The rest is water;
After being prepared respectively by A liquid B liquid, stir B liquid slowly to pour in A liquid and mix, being adjusted to pH value with NaOH is 12, is then put into by fabric and carries out the sub-gold of single bath process chemical plating, bath temperature: 38 ~ 45 DEG C, 35 ~ 45 minutes time;
Finished product is made after washing, oven dry.
It should be noted that the main body due to A liquid is metal ion, and the main body of B liquid is reductant, needs B liquid slowly to pour in A liquid during mixing, can not put upside down.Just reducing metal ions is become metal after mixing, be deposited on fabric.
Claims (6)
1. a microwave electromagnetic loomage, comprise basic unit and metal composite cladding, the basic unit of this fabric is terylene net-thread fabric, it is characterized in that arranging metal composite cladding in this basic unit, the bottom of described metal composite cladding is plated metallic silver, the content of silver is 4 ~ 10 grams/m, and the surface layer of described metal composite cladding is sub-gold plate, and the content of sub-gold is 13 ~ 20 grams/m.
2. microwave electromagnetic loomage according to claim 1, it is characterized in that described terylene net-thread fabric is polyester FDY type 70D/24F, density is 110 × 100, the twill-weave structure on 4 under 1.
3. microwave electromagnetic loomage according to claim 2, it is characterized in that the content of each component in described sub-gold is Cu 9.8 ~ 11.5 grams/m, Ag 0.3 ~ 0.4 gram/m, Zn 1.6 ~ 2 grams/m, Al 0.65 ~ 0.8 gram/m and Ni 1.3 ~ 1.6 grams/m.
4. a manufacture method for microwave electromagnetic loomage, is characterized in that described preparation method comprises the steps: A, makes base fabric; B, to carry out sputtering at Ji Bushang silver-plated, forms plated metallic silver, and the content of silver is 4 ~ 10 grams/m; C, on plated metallic silver, then carry out the sub-gold of single bath process chemical plating, form sub-gold plate, the content of sub-gold is 13 ~ 20 grams/m.
5. manufacture method according to claim 4, it is characterized in that, in steps A, utilizing terylene net-thread, FDY type 70D/24F, density is 110 × 100, and the twill-weave structure on 4 under 1 makes base fabric.
6. manufacture method according to claim 4, is characterized in that in step C, and with the aqueous sulfuric acid activation of 5%, after distilled water washing, directly carry out the sub-gold of single bath process chemical plating, plating bath forms:
A liquid: CuSO
45H
2o 13 ~ 16g/l,
Sodium potassium tartrate tetrahydrate 26 ~ 28g/l,
AgNO3 0.5~0.8g/l，
ZnSO
4·7H
2O 2.0g~4.0/l，
Al
2（SO
4）
3·8H
2O 0.5~1.5g/l，
Bipyridyl 0.5ml ~ 6/l,
NiSO4 ·7H
2O 1.0~1.5g/l;
B liquid: formaldehyde 10 ~ 12ml/l,
Inferior sodium phosphate 3 ~ 4g/l,
Polyethylene glycol 1.5 ~ 2.5g/l,
Ethanol 1.5 ~ 2.5ml/l,
Being adjusted to pH value with NaOH is between 11 ~ 13, bath temperature: 38 ~ 45 DEG C, 35 ~ 45 minutes time;
Finished product is made after washing, oven dry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310444135.2A CN104514141B (en) | 2013-09-26 | 2013-09-26 | Microwave electromagnet shielding fabric and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310444135.2A CN104514141B (en) | 2013-09-26 | 2013-09-26 | Microwave electromagnet shielding fabric and manufacturing method thereof |
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| CN104514141A true CN104514141A (en) | 2015-04-15 |
| CN104514141B CN104514141B (en) | 2017-05-24 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107864604A (en) * | 2017-11-10 | 2018-03-30 | 中国科学院西安光学精密机械研究所 | Electromagnetic radiation shielding structure |
| CN109244865A (en) * | 2018-09-25 | 2019-01-18 | 广州文搏科技有限公司 | A kind of distribution box with shell structure |
| CN109306460A (en) * | 2018-09-25 | 2019-02-05 | 广州小楠科技有限公司 | A kind of Electromagnetically shielding fabrics and preparation method thereof |
| CN109346230A (en) * | 2018-09-25 | 2019-02-15 | 东莞方凡智能科技有限公司 | Anti-interference cable with electromagnetic shielding capability |
| CN109371668A (en) * | 2018-09-25 | 2019-02-22 | 广州巨枫科技有限公司 | A kind of electromagnetic shielding anti-radiation electric conduction cloth |
| CN109367164A (en) * | 2018-09-25 | 2019-02-22 | 东莞绿邦智能科技有限公司 | A kind of anti-radiation casement |
| CN112687421A (en) * | 2019-10-18 | 2021-04-20 | 福懋兴业股份有限公司 | Conductive cloth and preparation method and application thereof |
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| CN1280223A (en) * | 1999-07-07 | 2001-01-17 | 刘绍芝 | Fabric for shielding electromagnetic wave and its producing method |
| CN1738924A (en) * | 2002-09-20 | 2006-02-22 | 高贵纤维科技公司 | Improved silver plating method and articles made therefrom |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107864604A (en) * | 2017-11-10 | 2018-03-30 | 中国科学院西安光学精密机械研究所 | Electromagnetic radiation shielding structure |
| CN109244865A (en) * | 2018-09-25 | 2019-01-18 | 广州文搏科技有限公司 | A kind of distribution box with shell structure |
| CN109306460A (en) * | 2018-09-25 | 2019-02-05 | 广州小楠科技有限公司 | A kind of Electromagnetically shielding fabrics and preparation method thereof |
| CN109346230A (en) * | 2018-09-25 | 2019-02-15 | 东莞方凡智能科技有限公司 | Anti-interference cable with electromagnetic shielding capability |
| CN109371668A (en) * | 2018-09-25 | 2019-02-22 | 广州巨枫科技有限公司 | A kind of electromagnetic shielding anti-radiation electric conduction cloth |
| CN109367164A (en) * | 2018-09-25 | 2019-02-22 | 东莞绿邦智能科技有限公司 | A kind of anti-radiation casement |
| CN112687421A (en) * | 2019-10-18 | 2021-04-20 | 福懋兴业股份有限公司 | Conductive cloth and preparation method and application thereof |
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| Publication number | Publication date |
|---|---|
| CN104514141B (en) | 2017-05-24 |
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Address after: Jinzhai South Road, Shushan District of Hefei City, Anhui province 230022 No. 157 South Building Room 1405-1406 Applicant after: HEFEI AJIACN RADIATION TECHNOLOGY CO., LTD. Applicant after: Liang High Tech Co., Ltd., Shanghai Address before: Baohe District of Hefei city of Anhui province Taihu 230022 emblem Building 5 room 810 yuan Shang Lake Applicant before: HEFEI AJIACN RADIATION TECHNOLOGY CO., LTD. Applicant before: Liang High Tech Co., Ltd., Shanghai |
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