CN102920075A - Electromagnetic radiation-prevention fabric and method for producing same - Google Patents
Electromagnetic radiation-prevention fabric and method for producing same Download PDFInfo
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- CN102920075A CN102920075A CN2011102364282A CN201110236428A CN102920075A CN 102920075 A CN102920075 A CN 102920075A CN 2011102364282 A CN2011102364282 A CN 2011102364282A CN 201110236428 A CN201110236428 A CN 201110236428A CN 102920075 A CN102920075 A CN 102920075A
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Abstract
The invention discloses electromagnetic radiation-prevention fabric and a method for producing the same. The fabric consists of hydrophobic base cloth and a resin film; metal particles in the resin film are positioned in the middle of the film, and the distances between an area where the metal particles are positioned and the upper and lower surfaces of the resin film are both 5 to 10 mu m; the electromagnetic wave shielding performance of the fabric is more than 40dB; the fabric can effectively prevent the damage of electromagnetic waves which are radiated by mobile phones, computers, high-radiation household appliances and the like to a human body, is not prone to rust after being washed, and has a good shielding effect.
Description
Technical field
The present invention relates to the production method of a kind of anti-electromagnetic radiation fabric and this fabric.
Background technology
In recent years, along with growth in the living standard, people more and more pay close attention to the raising of quality of life.How to prevent that the electromagnetic wave of the radiation such as mobile phone, computer, high radiation household electrical appliances more and more receives people's concern to the injury of human body.So the shielding clothing of being made by anti-electromagnetic radiation fabric is subject to everybody favor day by day, and accepted by increasing people.
At present the kind of anti-electromagnetic radiation fabric mainly contains: the fabric that (1) obtains by wire and fiber interweaving, this fabric cannot firmly be washed by rubbing with the hands, cannot dry or wring out in order to avoid destroy metal fabric structures, cause wire to rupture, easily get rusty.(2) fabric is placed carry out the fabric that evaporation obtains under the high vacuum, the electrodeposited coating on this type of fabric surface very easily comes off, hydraulic performance decline is fast, service life is short, easily get rusty.(3) fabric is placed solution, at the surface chemical metal plating of fabric and the fabric that obtains, the price of this type of fabric is higher and produce this type of fabric to the pollution of environment also more seriously, easily get rusty.(4) fabric that obtains by the surperficial coated with conductive layer at fabric, this class fabric is collapsible but its washing fastness is poor, easily get rusty.
Obtain the good textile of electromagnetic shielding effect as also proposing to adopt the resin that contains nanometer grade powder to carry out coating processing in the master thesis " research of nanoscale electromagnetic wave screen fabric " of Lv Xiwu, but the method more complicated that it adopts, need to use first coupling agent that nanometer grade powder is carried out surface treatment, reduce the possibility of getting rusty thereby form layer protecting film at powder surface; And diameter of particle is relatively large, coating layer thickness is also thicker, and the feel of final products is had certain influence.
Summary of the invention
The object of the invention is to that improvement by traditional handicraft provides a kind of and has that production method is simple, soft, be difficult for producing rust staining and good fabric and the production method thereof of electromagnetic shielding effect after the washing.
Fabric of the present invention has radiation-resisting functional, is comprised of water repellency base cloth and resin molding; Metallic is positioned at the centre position of film and the distance of metallic zone of living in and resin molding upper and lower surface is 5～10 μ m in the resin molding, and the electromagnetic wave shielding performance of this fabric is more than the 40dB.The water repellency base cloth can effectively be controlled resin to the base cloth internal penetration, guarantees the fabric feel; Preferably refuse the water degree at the woven fabric more than 4 grades.Infiltration situation during the refusing the water degree and directly affect resin-coating of base cloth, thus have influence on the feel of fabric after the processing.The centre position that metallic is positioned at film in the resin molding is protected metallic in the middle of resin well, can avoid metallic directly to contact with air, base cloth, thereby reduces rust staining odds after the washing; And if the distance of metallic and resin molding upper and lower surface also just can not separate metallic and air, base cloth well less than 5 μ m, cause the too thin washing of rete easily to be got rusty afterwards; And if distance then can affect the feel of fabric greater than 10 μ m.If metallic is dispersed in the whole resin molding, the part particle might expose on the surface of film or directly contact base cloth, so just is easy to get rusty, and particularly repeatedly the rear metallic of washing might peel off, the performance after the impact washing.
The main component of resin molding of the present invention is hydrophobic polyurethane resin, hydrophobic polypropylene acid ester resin or hydrophobicity Corvic.Select hydrophobic resin and water repellency base cloth to combine, better metallic is protected, aqueous water be difficult for to infiltrate wherein during washing, has solved well to get rusty after the washing of using hydrophilic resin to bring and problem that electromagnetic shielding effect descends.Consider washing resistance, problem of environmental pollution and consumer to the requirement of product safety, preferred hydrophobic polyurethane resin.
The thickness in metallic zone of living in is 5～20 μ m in the resin molding of the present invention.The content of metallic and the thickness in zone of living in directly have influence on the anti-electromagnetic radiation performance of product and the Cost Problems of product, so the thickness in preferable alloy particle zone of living in is 10～15 μ m.
Metallic of the present invention is silver-plated copper particle, nickel particles, tin particle, aluminum particulate or copper particle.Consider the security of performance, cost, washing resistance and the product of product, the preferable alloy particle is silver-plated copper particle.
The production method of anti-electromagnetic radiation fabric of the present invention: the one side of water repellency base cloth apply in order resin solution, the containing metal particle of containing metal particle not resin solution, the step of the resin solution of containing metal particle does not make fabric, wherein apply lower one deck resin solution after every layer of resin solution drying in the coating procedure, the coating thickness of the resin solution of containing metal particle is not 5～10 μ m again.By in transferring liquid bath, adding successively resin, solvent butanone (MEK), solvent dimethyl formamide (DMF), the use mixer stirs, carry out impurity screening and deaeration processing and obtain resin solution, apply in order the resin solution of resin solution, the containing metal particle of containing metal particle not, the resin solution of containing metal particle not in the one side of water repellency base cloth, wherein apply again lower one deck resin solution after every layer of resin solution drying in the coating procedure.The drying is here carried out at twice, carries out first the dry 80 ℃ * 1min first time, carries out the 130 ℃ * 1min second time again; And then one deck resin under applying.Metallic is coated in the middle of the resin, has solved well the come off generation of rust staining after the hydraulic performance decline that brings and the washing of metallic.The coating thickness of levels resin solution directly has influence on the feel of processed goods, and preferred coating thickness is 8～10 μ m.
The particle diameter of the used metallic of resin solution of containing metal particle of the present invention is 0.5～15 μ m, and the content of metallic is 30～90 % by weight of resin solution.The size of considering particle has a significant impact folding resistance and the washing resistance of processing rear fabric, and the particle diameter of preferable alloy particle is 5～10 μ m.
Anti-electromagnetic radiation fabric of the present invention and production method thereof have solved the washing resistance problem of the product that obtains by traditional handicraft well.Use anti-electromagnetic radiation fabric of the present invention can stop effectively that the electromagnetic wave of the radiation such as mobile phone, computer, high radiation household electrical appliances is to the injury of human body.With traditional anti-electromagnetic radiation fabric relatively, this fabric has safety in utilization, and is soft, substantially do not see rust staining, the good characteristics of electromagnetic shielding effect after washing 10 times.
The specific embodiment
Each performance test method is as follows among the present invention:
(1) thickness
Utilize the high magnification electron microscope to observe.
(2) distribution of metallic and size
Utilize the high magnification electron microscope to observe.
(3) refuse the water degree
According to JIS L 1092 standard testings.
(4) washing
According to JIS L 0217-103 standard testing.
(5) electromagnetic wave shielding performance
Fabric is at 0.01MH
Z～18MH
ZScope in the dB value of electromagnetic wave shielding.
SE＝20lg(E
1/E
2)(dB)
In the formula: E
1=field intensity when not shielding, E
2=field intensity in when shielding arranged
Field intensity E when at first using electromagnetic radiation tester (QX-5, Chinese Radiation Protection Research Inst) test not shield
1, and then test the field intensity E in when shielding is arranged
2, calculate radioresistance usefulness according to top formula.
(6) content of metallic in the resin molding
By removing base cloth and resinous principle after burning and the dry processing of solvent soaking, obtain the weight of metallic, contrast the weight change of processing front and back, the content of calculating metallic in the resin molding.
The present invention is described in detail below in conjunction with embodiment and comparative example.
Embodiment 1
(1) transfer liquid to prepare
1. in transferring liquid bath, successively add in order hydrophobic polyurethane resin, solvent MEK, solvent DMF, its adding proportion (weight ratio) is 100/20/20, then use mixer to stir 10 minutes, process and obtain resin solution 1. thereby resin is carried out impurity screening and deaeration.
2. in transferring liquid bath, successively add in order hydrophobic polyurethane resin, solvent MEK, solvent DMF, metallic (silver-plated copper particle, particle diameter 5～10 μ m) its adding proportion (weight ratio) is 100/50/40/175, then use mixer to stir 20 minutes, obtain resin solution 2. thereby resin is carried out the deaeration processing.
(2) apply processing
The one side of water repellency base cloth in order coated with resins solution 1., resin solution 2., resin solution 1., its cutter lifting gap is respectively 90 μ m+80 μ m+120 μ m and obtains anti-electromagnetic radiation fabric, its performance sees Table 1.Wherein apply again lower one deck resin solution after every layer of resin solution drying in the coating procedure, be specially and successively carry out the drying of 80 ℃ * 1min, the drying of 130 ℃ * 1min after resin solution applies.
Embodiment 2
(1) transfer liquid to prepare
1. in transferring liquid bath, successively add in order hydrophobic polypropylene acid esters, solvent MEK, solvent DMF, its adding proportion (weight ratio) is 100/20/20, then use mixer to stir 10 minutes, process and obtain resin solution 3. thereby resin is carried out impurity screening and deaeration.
2. in transferring liquid bath, successively add in order hydrophobic polypropylene acid esters, solvent MEK, solvent DMF, metallic (silver-plated copper particle, particle diameter 5～10 μ m) its adding proportion (weight ratio) is 100/50/40/175, then use mixer to stir 20 minutes, obtain resin solution 4. thereby resin is carried out the deaeration processing.
(2) apply processing
The one side of water repellency base cloth in order coated with resins solution 3., resin solution 4., resin solution 3., its cutter lifting gap is respectively 90 μ m+80 μ m+120 μ m and obtains anti-electromagnetic radiation fabric, its performance sees Table 1.Wherein apply again lower one deck resin solution after every layer of resin solution drying in the coating procedure, be specially and successively carry out the drying of 80 ℃ * 1min, the drying of 130 ℃ * 1min after resin solution applies.
Embodiment 3
(1) transfer liquid to prepare
1. in transferring liquid bath, successively add in order hydrophobicity polyvinyl chloride, solvent MEK, solvent DMF, its adding proportion (weight ratio) is 100/20/20, then use mixer to stir 10 minutes, process and obtain resin solution 5. thereby resin is carried out impurity screening and deaeration.
2. in transferring liquid bath, successively add in order hydrophobicity polyvinyl chloride, solvent MEK, solvent DMF, metallic (silver-plated copper particle, particle diameter 5～10 μ m) its adding proportion (weight ratio) is 100/50/40/175, then use mixer to stir 20 minutes, obtain resin solution 6. thereby resin is carried out the deaeration processing.
(2) apply processing
The one side of water repellency base cloth in order coated with resins solution 5., resin solution 6., resin solution 5., its cutter lifting gap is respectively 90 μ m+80 μ m+120 μ m and obtains anti-electromagnetic radiation fabric, its performance sees Table 1.Wherein apply again lower one deck resin solution after every layer of resin solution drying in the coating procedure, be specially and successively carry out the drying of 80 ℃ * 1min, the drying of 130 ℃ * 1min after resin solution applies.
Embodiment 4
(1) transfer liquid to prepare
In transferring liquid bath, successively add in order hydrophobic polyurethane resin, solvent MEK, solvent DMF, its adding proportion of metallic (aluminum particulate) (weight ratio) is 100/50/40/175, then use mixer to stir 20 minutes, obtain resin solution 7. thereby resin is carried out the deaeration processing.
(2) apply processing
The one side of water repellency base cloth in order coated with resins solution 1., resin solution 7., resin solution 1., its cutter lifting gap is respectively 90 μ m+80 μ m+120 μ m and obtains anti-electromagnetic radiation fabric, its performance sees Table 1.Wherein apply again lower one deck resin solution after every layer of resin solution drying in the coating procedure, be specially and successively carry out the drying of 80 ℃ * 1min, the drying of 130 ℃ * 1min after resin solution applies.
Embodiment 5
(1) transfer liquid to prepare
In transferring liquid bath, successively add in order hydrophobic polyurethane resin, solvent MEK, solvent DMF, its adding proportion of metallic (nickel particles) (weight ratio) is 100/50/40/175, then use mixer to stir 20 minutes, obtain resin solution 8. thereby resin is carried out the deaeration processing.
(2) apply processing
The one side of water repellency base cloth in order coated with resins solution 1., resin solution 8., resin solution 1., its cutter lifting gap is respectively 90 μ m+80 μ m+120 μ m and obtains anti-electromagnetic radiation fabric, its performance sees Table 1.Wherein apply again lower one deck resin solution after every layer of resin solution drying in the coating procedure, be specially and successively carry out the drying of 80 ℃ * 1min, the drying of 130 ℃ * 1min after resin solution applies.
Embodiment 6
(1) transfer liquid to prepare
In transferring liquid bath, successively add in order hydrophobic polyurethane resin, solvent MEK, solvent DMF, metallic (silver-plated copper particle, particle diameter 5～10 μ m) its adding proportion (weight ratio) is 100/50/40/100, then use mixer to stir 20 minutes, obtain resin solution 9. thereby resin is carried out the deaeration processing.
(2) apply processing
The one side of water repellency base cloth in order coated with resins solution 1., resin solution 9., resin solution 1., its cutter lifting gap is respectively 90 μ m+80 μ m+120 μ m and obtains anti-electromagnetic radiation fabric, its performance sees Table 1.Wherein apply again lower one deck resin solution after every layer of resin solution drying in the coating procedure, be specially and successively carry out the drying of 80 ℃ * 1min, the drying of 130 ℃ * 1min after resin solution applies.
Embodiment 7
(1) transfer liquid to prepare
In transferring liquid bath, successively add in order hydrophobic polyurethane resin, solvent MEK, solvent DMF, metallic (silver-plated copper particle, particle diameter 5～10 μ m) its adding proportion (weight ratio) is 100/50/40/250, then use mixer to stir 20 minutes, obtain resin solution 10. thereby resin is carried out the deaeration processing.
(2) apply processing
The resin solution that applies in order containing metal particle not in the one side of water repellency base cloth 1., the resin solution of containing metal particle 10., not the containing metal particle resin solution 1., its cutter lifting gap is respectively 90 μ m+80 μ m+120 μ m and obtains anti-electromagnetic radiation fabric, and its performance sees Table 1.Wherein apply again lower one deck resin solution after every layer of resin solution drying in the coating procedure, be specially and successively carry out the drying of 80 ℃ * 1min, the drying of 130 ℃ * 1min after resin solution applies.
Embodiment 8
The one side of water repellency base cloth in order coated with resins solution 1., resin solution 2., resin solution 1., its cutter lifting gap is respectively 90 μ m+60 μ m+120 μ m and obtains anti-electromagnetic radiation fabric, its performance sees Table 1.Wherein apply again lower one deck resin solution after every layer of resin solution drying in the coating procedure, be specially and successively carry out the drying of 80 ℃ * 1min, the drying of 130 ℃ * 1min after resin solution applies.
Embodiment 9
The one side of water repellency base cloth in order coated with resins solution 1., resin solution 2., resin solution 1., its cutter lifting gap is respectively 90 μ m+100 μ m+120 μ m and obtains anti-electromagnetic radiation fabric, its performance sees Table 1.Wherein apply again lower one deck resin solution after every layer of resin solution drying in the coating procedure, be specially and successively carry out the drying of 80 ℃ * 1min, the drying of 130 ℃ * 1min after resin solution applies.
Embodiment 10
The one side of water repellency base cloth in order coated with resins solution 1., resin solution 2., resin solution 1., its cutter lifting gap is respectively 60 μ m+80 μ m+90 μ m and obtains anti-electromagnetic radiation fabric, its performance sees Table 1.Wherein apply again lower one deck resin solution after every layer of resin solution drying in the coating procedure, be specially and successively carry out the drying of 80 ℃ * 1min, the drying of 130 ℃ * 1min after resin solution applies.
Embodiment 11
(1) transfer liquid to prepare
In transferring liquid bath, successively add in order hydrophobic polyurethane resin, solvent MEK, solvent DMF, metallic (silver-plated copper particle, particle diameter 0.5～5 μ m) its adding proportion (weight ratio) is 100/50/40/175, then use mixer to stir 20 minutes, obtain resin solution thereby resin is carried out the deaeration processing
(2) apply processing
The one side of water repellency base cloth in order coated with resins solution 1., resin solution
Resin solution 1., its cutter lifting gap is respectively 90 μ m+80 μ m+120 μ m and obtains anti-electromagnetic radiation fabric, its performance sees Table 1.Wherein apply again lower one deck resin solution after every layer of resin solution drying in the coating procedure, be specially and successively carry out the drying of 80 ℃ * 1min, the drying of 130 ℃ * 1min after resin solution applies.
Embodiment 12
(1) transfer liquid to prepare
In transferring liquid bath, successively add in order hydrophobic polyurethane resin, solvent MEK, solvent DMF, metallic (silver-plated copper particle, particle diameter 10～15 μ m) its adding proportion (weight ratio) is 100/50/40/175, then use mixer to stir 20 minutes, obtain resin solution thereby resin is carried out the deaeration processing
(2) apply processing
The one side of water repellency base cloth in order coated with resins solution 1., resin solution
Resin solution 1., its cutter lifting gap is respectively 90 μ m+80 μ m+120 μ m and obtains anti-electromagnetic radiation fabric, its performance sees Table 1.Wherein apply again lower one deck resin solution after every layer of resin solution drying in the coating procedure, be specially and successively carry out the drying of 80 ℃ * 1min, the drying of 130 ℃ * 1min after resin solution applies.
Embodiment 13
The one side of water repellency base cloth in order coated with resins solution 1., resin solution 2., resin solution 1., its cutter lifting gap is respectively 100 μ m+40 μ m+110 μ m and obtains anti-electromagnetic radiation fabric, its performance sees Table 1.Wherein apply again lower one deck resin solution after every layer of resin solution drying in the coating procedure, be specially and successively carry out the drying of 80 ℃ * 1min, the drying of 130 ℃ * 1min after resin solution applies.
Comparative example
The resin solution that directly applies one deck containing metal particle in the one side of water repellency base cloth 2., its cutter lifting gap is that 90 μ m obtain anti-electromagnetic radiation fabric, its performance sees Table 1.At first carry out the drying of 80 ℃ * 1min after the coating, carry out again the drying of 130 ℃ * 1min.
Table 1
Claims (7)
1. anti-electromagnetic radiation fabric, it is characterized in that: this fabric is comprised of water repellency base cloth and resin molding; Metallic is positioned at the centre position of film in the described resin molding, and the distance of metallic zone of living in and resin molding upper and lower surface is 5～10 μ m; The electromagnetic wave shielding performance of this fabric is more than the 40dB.
2. described anti-electromagnetic radiation fabric according to claim 1, it is characterized in that: the main component of described resin molding is hydrophobic polyurethane resin, hydrophobic polypropylene acid ester resin or hydrophobicity Corvic.
3. described anti-electromagnetic radiation fabric according to claim 1, it is characterized in that: the thickness in described metallic zone of living in is 5～20 μ m.
4. described anti-electromagnetic radiation fabric according to claim 1, it is characterized in that: described metallic is silver-plated copper particle, nickel particles, tin particle, aluminum particulate or copper particle.
5. described anti-electromagnetic radiation fabric according to claim 4, it is characterized in that: described metallic is silver-plated copper particle.
6. production method of anti-electromagnetic radiation fabric as claimed in claim 1, it is characterized in that: the one side that mainly is included in the water repellency base cloth apply in order resin solution, the containing metal particle of containing metal particle not resin solution, the step of the resin solution of containing metal particle does not make fabric, wherein apply lower one deck resin solution after every layer of resin solution drying in the coating procedure, the coating thickness of the resin solution of containing metal particle is not 5～10 μ m again.
7. the production method of described anti-electromagnetic radiation fabric according to claim 6, it is characterized in that: the particle diameter of used metallic is that the content of 0.5～15 μ m, metallic is 30～90 % by weight of resin solution in the resin solution of described containing metal particle.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011102364282A CN102920075A (en) | 2011-08-10 | 2011-08-10 | Electromagnetic radiation-prevention fabric and method for producing same |
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| CN2011102364282A CN102920075A (en) | 2011-08-10 | 2011-08-10 | Electromagnetic radiation-prevention fabric and method for producing same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110481104A (en) * | 2019-08-22 | 2019-11-22 | 深圳玛丝菲尔噢姆服饰有限公司 | A kind of summer radiation-proof ventilated composite material and preparation method thereof |
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| CN1558017A (en) * | 2004-01-13 | 2004-12-29 | 长沙力元新材料股份有限公司 | Nickel-copper composite metal textile and preparation method thereof |
| CN1587494A (en) * | 2004-08-03 | 2005-03-02 | 东华大学 | Electromagnetic shield textiles and its preparing method |
-
2011
- 2011-08-10 CN CN2011102364282A patent/CN102920075A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87215394U (en) * | 1987-11-08 | 1988-09-28 | 张秀英 | Precoating fabric with metal-plating |
| CN1033084A (en) * | 1987-11-08 | 1989-05-24 | 张秀英 | A kind of method of metal-coating on fabric |
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Application publication date: 20130213 |