CN101153462A - Method for manufacturing elastic conductive cloth - Google Patents
Method for manufacturing elastic conductive cloth Download PDFInfo
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- CN101153462A CN101153462A CNA2006101523793A CN200610152379A CN101153462A CN 101153462 A CN101153462 A CN 101153462A CN A2006101523793 A CNA2006101523793 A CN A2006101523793A CN 200610152379 A CN200610152379 A CN 200610152379A CN 101153462 A CN101153462 A CN 101153462A
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Abstract
The invention provides a manufacturing method of an elastic electric conductivity fabric, comprising the following steps: a fabric knitted by natural fiber or artificial fiber is provided; a foaming resin is stuck on at least one surface of the fabric to form an elastic fabric; a first film with a plurality of ultrafine holes is formed on the surface of the foaming resin; the first film is electroplated to metallize the fabric; and a second film is formed on the surface of the metallized fabric.
Description
Technical field
The present invention relates to the technical field of conductive fabric, relate in particular to a kind of manufacture method with elastic conductive cloth of soil resistance, weatherability and metal adherence.
Background technology
Nineteen sixty is flourish for space science and technology, owing to be full of electromagnetic wave in the space, in order to intercept harm that electromagnetic wave may cause for human body and the interference of relevant precision instrument to be produced misoperation, the comprehensive research and development electromagnetic shielding material of scientist, because the anti-tortuosity and the flexible demand of height, general sheet metal or metal forming also can't satisfy the demand of characteristic fully, utilize the electroless plating technology that the metallization of macromolecule organic fiber is become to have anti-tortuosity, the conduction cloth of flexibility, electric conductivity and electromagnetic wave shielding function begins development.
After the 1980's, because industrialization fast developments such as e-machine and information equipment, for the more apparent driven demand of the problem that prevents Electromagnetic Interference.The quick growth of electronic equipments such as laptop computer, plasm TV, mobile phone, LCD TV, communication equipment more seemed important for solving the Electromagnetic Interference problem in recent years, and for preventing in the building that precision instrument and equipment are subjected to external Electromagnetic Interference and produce maloperation, reach human body and be subjected to possible health effect in being full of electromagnetic environment, electromagnetic shielding material has been indispensable important materials now.
It is very many generally to can be used as the electromagnetic shielding material kind, for example well-known metal copper foil, aluminium foil, iron plate etc., on to the shielding electromagnetic waves performance, can meet demand, but its topmost shortcoming is an anti-tortuosity and flexible poor, using and design for final use has much more very restriction and drawback, and especially needing to batch on the purposes of the purposes of winding and crooked facial product has very large drawback.
It is very many that general cloth metallization becomes the conductive fabric kind, for example becomes conductive fabric after the general fabrics metallization, different tissues and fiber Denier number, and thickness is about 0.07mm to 0.25mm.Become the electric conductivity knitted cloth after the knitted cloth metallization, different tissues and fiber Denier number, thickness is about 0.07mm to 0.6mm.Become the electric conductivity Nonwovens after the Nonwovens metallization, different tissues and fiber Denier number, thickness is about 0.12mm to 1.2mm.Cloth becomes the electromagnetic wave shielding conductive cloth after metallizing via electroless plating, electromagnetic wave shielding performance and electric conductivity generally can meet demand, but maximum shortcoming is the no elasticity of compression, on the purposes that needs the restriction of compressibility and spatial design great drawback and restriction being arranged.
The conductive fabric foam, coats with the gauge thickness of needs, the polyurethane foam of width via cutting the width that is rolled into to needs for after using conductive fabric coated heat melten gel again, becomes the conductive fabric foam with elasticity of compression.Use hot melt adhesive aluminum foil cloth to carry out polyurethane foam in addition in addition and become conductive aluminum foil foam with elasticity of compression.This series products disadvantage is the loaded down with trivial details cost height of process engineering, hot melt adhesive has from the fiber hole when coating and leaks out to the danger that the surface influences the electric conductivity function, conductive aluminum foil is distributed in to add and easily contacts friction generation wearing and tearing or damaged with coating the heating appliances surface man-hour, influences its electric conductivity, electromagnetic wave shielding performance and weather resistance.And polyurethane foam minimum cut thickness is 2mm to 3mm, its cutting accuracy accuracy has very big restriction, general plus-minus tolerance is about 0.5mm, and carrying out having very difficulty of 2 error operations when foam coats, for the purposes demand of thinner thickness 0.05mm to 1.5mm and need the high designed use of thickness precision to produce great drawback and restriction.
Use general well-known polyurethane foam or polyurethane foam sintering fabric, knitted cloth, Nonwovenss etc. become and have compression elastic material, again via electroless plating metallization becoming conductive material, its electric conductivity and electromagnetic wave shielding performance generally can meet demand, but this kind conductive material disadvantage and be subjected to the problem that the user can't overcome and be, polyurethane foaming body is owing to be the polyurethane high molecule porous body, weatherability is poor, embrittlement easily, metal film is crisp bad dropping easily, thickness accuracy is poor, foaming body and metal fragment drop easily when cutting, more trouble is when being used in electronic equipment internal, because weatherability difference and metal powder drop easily, cause the danger of electronic equipment short circuit, and polyurethane foam generally cuts minimum thickness 2mm to 3mm, for more and more being particular about compact electronics, the demand that communication equipment can't satisfy frivolous material behavior is to be its maximum drawback and restriction.
In order to improve the drawback of above-mentioned conductive elastomer, so general well-known stereo fabric method for designing is suggested, open the 2001-3264 communique as the Japan Patent spy, its disadvantage is three-dimensional vertical fibers part, promptly be to support interior thickness and flexible pars fibrosa, meeting adhesion metal when using the metallization of wet dip method electroless plating, and its texture's design engineering with Fabric Design is very numerous and diverse, more trouble is that general conducting foam purposes is length direction (warp-wise) and cuts, this kind Fabric Design easily causes cut-off parts fiber and metal fragment to drop when cutting, for electronics, device interiors such as information use and have the danger that short circuit is disturbed.The Japan Patent spy opens the 2002-84088 communique, the main drawback of this kind product must accurately switch to no three-dimensional filament part when cutting, processability and dimensions restriction drawback for final use are very big, can't satisfy final use specification demand effectively comprehensively, and in the middle of hypothesis is cut to when cutting three-dimensional filametntary part is arranged, will lose its original design and prevent the function that metal fragment drops, promptly be that to open the shortcoming of 2001-3264 communique identical with the spy, more trouble be because three-dimensional fiber cloth is weaved and process in be subjected to the influence of coiling tension, middle upright fiber support power and support kenel have very large drawback for the thickness precision, and the fabric width broadwise difference thickness of three-dimensional fiber cloth, promptly there are three-dimensional filament and no three-dimensional filament segment thickness precision poor, this drawback is that obviously thickness is thick more big more for the influence of thickness precision, for the electromagnetic wave shielding conductive fabric materials demand of more and more stressing the thickness precision, there are very large drawback and restriction, necessity of being improved and developing is arranged really.
Summary of the invention
For restriction and the drawback of improving above-mentioned existing conductive elastomer, and promoting related industry to develop and meet the use and the functional requirement characteristic of material, main purpose of the present invention is to provide a kind of preparation method with conductive fabric of elasticity and electromagnetic wave shielding characteristic.
The manufacture method of elastic conductive cloth of the present invention, it comprises the following steps: to provide a cloth that is made into natural fabric or artificial fibre; Foamex is adhered at least one surface of described cloth, forms the rubber-like cloth; The first film that has a large amount of superfine holes in described Foamex surface formation one; Electroplate so that described cloth is metallized in described the first film: and at described metallized fabric surface formation one second film.
Description of drawings
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The specific embodiment
In aspect concrete enforcement of the present invention, the manufacture method of elastic conductive cloth comprises the following steps: to provide a cloth that is made into natural fabric or artificial fibre; Foamex is adhered at least one surface of described cloth; Evenly form first resin film of an interpolation inorganic powder on described Foamex surface; Described film is carried out the decrement processing technology, to form a large amount of ultra-fine micropores at film surface; Electroplate so that described cloth is metallized: and at described metallized fabric surface formation second resin film.
In aspect another concrete enforcement of the present invention, before the step of coating Foamex, comprise in addition to described cloth carry out concisely cleaning, HEAT SETTING and an at least hot calendered technology, with the thickness that reduces cloth and increase pliability.
In aspect another concrete enforcement of the present invention, after the step of carrying out the decrement processing technology, comprise the thickness adjustment of carrying out cloth with the high temperature dye jigger in addition.
Employed natural fabric can be any natural fabric in said method, such as but not limited to cotton, fiber crops, silk or hair; Artificial fibre can be any artificial fibre, such as but not limited to rayon fibers, nylon fiber, polyester fiber or acryl fiber, is preferably polyester fiber.Artificial fibre preferably has about 5 Denier to about 75 Denier, has the cloth of about 0.07mm to the thickness of about 0.11mm to be made into.The cloth that is made into can be any tissue-ings such as flat fabric, Nonwovens, screen cloth or knitted cloth.
Concise the cleaning with HEAT SETTING of above-mentioned cloth carried out in a usual manner.Above-mentioned hot calendered technology is via two or three rollers, preferably comprises a rubber rollers and other is stainless steel rider, and the cloth strand is pressed.Preferably, carry out thickness and the increase pliability of secondary hot pressing light to reduce cloth.In aspect concrete enforcement of the present invention, the hot calendered condition is as follows: temperature is about 50 ℃ to about 230 ℃, preferred about 130 ℃ to about 190 ℃; Pressure is extremely about 500daN/cm of about 50daN/cm, and preferably about 150daN/cm is to about 300daN/cm; Calender speed is extremely about 80M/min of about 5M/min, and preferably about 10M/min is to about 50M/min.
In aspect concrete enforcement of the present invention, has the thickness of about 0.04mm to about 0.06mm through the ultra-thin flexible conductive cloth of hot calendered technology.
In said method, the mode of adhesion Foamex comprises sintering or engraved roll is followed resin-coated mode, to form foamed resin layer on the cloth surface.Foamex can be solvent-borne type or aqueous foaming resin, such as but not limited to polyurethane foam resin, polyester foamed resin, acryl Foamex, emulsion foaming resin or silicone Foamex, be preferably the polyurethane foam resin, and resin viscosity is extremely about 8000cps of about 500cps, is preferably about 1000cps to about 3000cps.
It is to carry out in a usual manner that above-mentioned sintering and engraved roll are followed resin-coated mode.In aspect concrete enforcement of the present invention, sintering processing is that the scorification of about 3mm Foamex is followed with cloth to about 1.2mm for about 0.8mm; The spreading area coverage rate that engraved roll is followed resin-coated mode is about 10% to about 90%, preferred about 30% to about 60%.
In said method, the mode that forms first resin film is to utilize to add an amount of inorganic powder, water-based or solvent type resin such as but not limited to silica or titania powder, with the suction of dipping-pressure, coating or spray pattern, preferably, be bonded to described Foamex surface with high temperature ageing again and form homogeneous film in dipping-pressure suction mode.In aspect concrete enforcement of the present invention, resin can be about 5% to about 60% general organic resin, is preferably mylar.The interpolation ratio of inorganic powder is about 0.1% to about 20%, preferred about 0.5% to about 10%.It is about 30% to about 100%, preferred about 50% to about 80% that the resin of dipping-pressure suction mode is pressed the suction rate.The high temperature ageing temperature is about 160 ℃ to about 230 ℃, is preferably about 170 ℃ to about 190 ℃.
In aspect concrete enforcement of the present invention, above-mentioned decrement processing technology is to be undertaken by the high temperature dye jigger, and is containing under the amount of water condition, with suitable temperature and coiling tension pressure, forms a large amount of superfine holes on the first film surface.The decrement fabrication process condition is as follows: comprise about 5% to about 30% NaOH and about 0.1% to about 3% bleeding agent, such as but not limited to isopropyl alcohol (isopropyl alcohol; IPA), fatty amine (fatty amine), as the higher alcohol of different ten triethoxy alcohol (isotridecanolethoxylate), or in the solution as the phosphate emulsion of triisobutyl phosphate (triisobutyl phosphate), about 90 ℃ to about 105 ℃ of solution temperature, processing time is about 20 minutes to about 40 minutes, reduction rate about 10% to 30%.
In said method, also can use the high temperature dye jigger to carry out the thickness adjustment of cloth, to reduce the thickness of cloth.In aspect concrete enforcement of the present invention, it is as follows that thickness is adjusted fabrication process condition: about 110 ℃ to 135 ℃ of solution temperature, about 10 kilograms to about 80 kilograms of coiling tension at high temperature kept about 10 minutes to about 120 minutes in dye vat.
In aspect concrete enforcement of the present invention, have the thickness of about 2.05mm to 3.05mm, and behind decrement and thickness adjusting process, have the thickness of about 0.5mm to about 1.3mm without the elastic woven material of decrement and thickness adjusting process.
Above-mentioned electroless plating technology is that the those skilled in the art is well-known, and wherein employed metal can be any electric conductivity good metal, such as but not limited to copper, nickel, silver, gold or its alloy.Nickel plating can be electroless plating nickel or electronickelling all can.In aspect concrete enforcement of the present invention, has the thickness of about 0.5mm to about 1.3mm through the conduction cloth of electroless plating.
In said method, form soil resistance, weatherability and the elasticity retentivity that second resin film can increase cloth on the metallized fabric surface.In aspect concrete enforcement of the present invention, described film comprises water-base resin, such as but not limited to mylar, polyurethane resin, acryl resin, latex resin or silicone resin, is preferably through the upgrading mylar.Form homogeneous film in dipping-pressure suction mode on described cloth surface, it is covered with metal layer and cloth fully, prevents that the metal fillings that following process might cause from dropping.In aspect preferred enforcement of the present invention, water-base resin can add various additives in addition, makes cloth have the character of expectation.For example adding fire retardant can increase the flame retardant effect of conductive fabric.Described fire retardant such as but not limited to halogen, aluminium hydroxide, inorganic be antimonial or organophosphor based compound, especially preferred with phosphorus flame retardant, it meets UL-94V0 flame retardant rating specification and the 2002/95/EC RoHS of European Union rules six big forbidding harmful substance standards.In aspect concrete enforcement of the present invention, described film comprises about 5% to about 50% aqueous polyester resin and about 10% to about 70% phosphorus flame retardant.
The prepared elastic conductive cloth of the inventive method, final use operation for convenience becomes electricity conductive cloth tape, conductive fabric liner, electromagnetic wave shielding stamp material etc., generally can be in any one side on two sides, fit or coating with general well-known conduction pressure-sensing glue, and any kenel that has release liners and become long paper shape or sheet is beneficial to operation, can prevent the electromagnetic wave influence of being leaked by e-machine or other e-machine and produces maloperation.
Following examples are used for that the invention will be further described, but non-in order to limit the scope of the invention.The modifications and changes that any those skilled in the art can reach easily are included in the scope of this case specification disclosure and appended claims.
Embodiment
The present invention is in order to solve many drawbacks of present electromagnetic shielding material, and restricted for final use, and related embodiment and comparative example are described below:
＜embodiment 1 〉
1. with the polyester fiber of 125/inch of warp thread 20 Denier/24 fiber numbers, weft yarn 30 Denier/12 fiber numbers, 189/inch of warp-wise density and latitudinal densities, be made into the flat fabric of thickness for about 0.081mm;
2. with concise clean, the HEAT SETTING of this flat fabric destarch; With calender hot calendered condition: 180 ℃ of temperature, pressure 100daN/cm, speed 30M/min with one side hot calendered 2 times, become the flat fabric of thickness 0.05mm;
3. the polyurethane foam resin of 0.05mm flat fabric and 3mm is become the tool elastic woven material base material of thickness 2.05mm in sintering welding mode, be sintered to bonding cloth substrate behind the flame scorification polyurethane foam resin 1mm;
4. be dispersed in the aqueous solution with water-based upgrading mylar 40% and titania powder 3%, dipping-pressure is inhaled pick up 60% (pressing suction rate 60%), with 120 ℃ of oven dry 2 minutes, reaches with 180 ℃ and wears out 1 minute;
5. carry out decrement, surface coarsening with high temperature dye jigger (high temperature JIGGER), the decrement condition is the solution that comprises NaOH 20% and bleeding agent 1%, 105 ℃ of liquid temperature, and in 20 to 40 minutes processing times, reduction rate 15 to 25% is cleaned with clear water again;
6. carry out the thickness adjustment with the high temperature dye jigger, 135 ℃ of water temperatures, 30 kilograms of coiling tensions contain under amount of water and the high temperature high-tension and to keep 45 minutes, become thickness 0.5mm elastic woven material;
7. elastic woven material is metallized with electroless plating, activate earlier: under 30 ℃, cloth was flooded 3 minutes in the solution that comprises palladium bichloride 100mg/L, stannous chloride 10g/L and hydrochloric acid 100ml/L, clean fully then; Follow speedization: under 45 ℃, cloth was flooded 3 minutes in hydrochloric acid 100ml/L, clean fully then; Carry out electroless plating copper subsequently: under 40 ℃, cloth is being comprised copper sulphate 10g/L, formaldehyde 7.5ml/L, NaOH 8g/L, tetrasodium ethylenediaminetetraacetate salt (ethylene diamine tetraacetic acid tetrasodium salt; EDTA-4Na) flooded 20 minutes in the solution of 30g/L and stabilization agent 0.25ml/L, on cloth, evenly to plate metallic copper 25 gram/M
2, clean fully then; Then carry out electroless nickel plating: under 40 ℃, cloth was flooded 5 minutes, on cloth, evenly to plate metallic nickel 5 gram/M in the solution that comprises nickelous sulfate 22.5g/L, inferior sodium phosphate 18g/L, natrium citricum 0.1M/L and ammoniacal liquor 20ml/L
2, clean fully then, dry at last, obtain elastic conductive cloth;
8. processing conditions is inhaled in compound function processing, dipping-pressure: water-based upgrading mylar 10%, pick up 60%, with 120 ℃ of oven dry 2 minutes, with 180 ℃ aging 1 minute, obtain the elastic conduction cloth material of thickness 0.5mm.
＜embodiment 2 〉
The polyester fiber flat fabric, with＜embodiment 1〉1 to 7 step identical, the elastic conduction cloth material is imposed the compound function processing of inflaming-retarding antifouling, dipping-pressure is inhaled processing conditions: water-based upgrading mylar 20%+ phosphorus flame retardant 30%, pick up 80%, dried 2 minutes for 120 ℃, 180 ℃ were worn out 1 minute, obtained the halogen-free flame-retardant electromagnetic wave shielding elastic conductive cloth of thickness 0.5mm.
＜embodiment 3 〉
1. with the polyester fiber of 125/inch of warp thread 20 Denier/24 fiber numbers, weft yarn 30 Denier/12 fiber numbers, 189/inch of warp-wise density and latitudinal densities, be made into the flat fabric of thickness for about 0.081mm;
2. with concise clean, the HEAT SETTING of this flat fabric destarch; With calender hot calendered condition: 180 ℃ of temperature, pressure 100daN/cm, speed 30M/min with one side hot calendered 2 times, become the flat fabric of thickness 0.05mm;
3. the polyurethane foam resin of 0.05mm flat fabric and 3mm is followed mode with the coating of engraved roll adhesion resin part area, become the tool elastic woven material base material of thickness 3.05mm, engraved roll coating condition: upgrading mylar sticker, viscosity 2000cps, the coating of coating area coverage 60% point-like;
4. be dispersed in the aqueous solution with water-based upgrading mylar 40% and titania powder 3%, dipping-pressure is inhaled pick up 80%, with 120 ℃ of oven dry 2 minutes, wears out 1 minute with 180 ℃;
5. carry out decrement, surface coarsening with high temperature dye jigger (high temperature JIGGER), the decrement condition is NaOH 20% and bleeding agent 1%, 105 ℃ of liquid temperature, and in 20 to 40 minutes processing times, reduction rate 15 to 25% is cleaned with clear water again;
6. carry out the thickness adjustment with the high temperature dye jigger, 135 ℃ of water temperatures, 30 kilograms of coiling tensions contain under amount of water and the high temperature high-tension and to keep 45 minutes, become thickness 0.5mm elastic woven material base material;
7. with＜embodiment 1〉electroless plating metallization condition is identical, obtains elastic conductive cloth;
8. compound function processing, dipping-pressure is inhaled processing conditions: water-based upgrading mylar 10%, pick up 50% with 120 ℃ of oven dry 2 minutes, with 180 ℃ of aging clock agings in 1 fen, obtains the electromagnetic wave shielding elastic conductive cloth of thickness 0.5mm.
＜embodiment 4 〉
The polyester fiber flat fabric, with＜embodiment 3〉1 to 7 step identical, the elastic conduction cloth material of thickness 0.5mm is imposed the compound function processing of inflaming-retarding antifouling, dipping-pressure is inhaled processing conditions: water-based upgrading mylar 20%+ phosphorus flame retardant 30%, pick up 80%, with 120 ℃ of oven dry oven dry in 2 minutes, with 180 ℃ aging 1 minute, obtain the halogen-free flame-retardant electromagnetic wave shielding elastic conductive cloth of thickness 0.5mm.
＜embodiment 5 〉
1. composite polyester fiber Nonwovens, elevated temperature heat fusion pressure point (point-like), the adhesion of Nonwovens face fiber point-like adds the strong pulling force tearing strength, the heavy 55G/M of cloth
2, thickness 0.25mm, filament 2 Denier, fibre length 51mm.The composite polyester fiber main component: skin is 190 ℃ of low-melting point polyesters of 35%, and internal layer is 245 ℃ of polyester fibers of 75% general fusing point;
2. with concise clean, the HEAT SETTING of this Nonwovens destarch;
3. the polyurethane foam resin of Nonwovens and 3mm is become the tool elastic non-woven cloth material base material of thickness 2.25mm in sintering welding mode, be sintered to bonding Nonwovens material base material behind the flame scorification polyurethane foam resin 1mm;
With water-based upgrading mylar 40% and titania powder 3% evenly in aqueous dispersion, dipping-pressure is inhaled pick up 80%, with 120 ℃ of oven dry oven dry in 2 minutes, with 180 ℃ aging 1 minute;
5. carry out decrement, surface coarsening with high temperature dye jigger (high temperature JIGGER), the decrement condition is NaOH 20% and bleeding agent 1%, 105 ℃ of liquid temperature, and in 20 to 40 minutes processing times, reduction rate 15 to 25% is cleaned with clear water again;
6. carry out the thickness adjustment with the high temperature dye jigger, 135 ℃ of water temperatures, 30 kilograms of coiling tensions contain under amount of water and the high temperature high-tension and to keep 45 minutes, become thickness 1.3mm elastic non-woven cloth material base material;
7. with＜embodiment 1〉electroless plating metallization condition is identical, obtains elastic conduction Nonwovens material;
8. processing conditions is inhaled in compound function processing, dipping-pressure: water-based upgrading mylar 10%, pick up 80%, with 120 ℃ of oven dry oven dry in 2 minutes, with 180 ℃ aging 1 minute, obtain the electromagnetic wave shielding elastic conduction Nonwovens of thickness 1.3mm.
＜embodiment 6 〉
The composite polyester fiber Nonwovens, with＜embodiment 5〉1 to 7 step identical, the elastic conduction Nonwovens material of thickness 1.3mm is imposed the compound function processing of inflaming-retarding antifouling, dipping-pressure is inhaled processing conditions: water-based upgrading mylar 30%+ phosphorus flame retardant 40%, pick up 90%, with 120 ℃ of oven dry oven dry in 2 minutes, with 180 ℃ aging 1 minute, obtain the halogen-free flame-retardant electromagnetic wave shielding elastic conduction Nonwovens of thickness 1.3mm.
＜embodiment 7 〉
1. polyester fiber screen cloth, totally 135/1 square inch of 135MESH, warp thread weft yarn, thickness 0.09mm;
2. with concise clean, the HEAT SETTING of this screen cloth destarch;
3. the polyurethane foam resin of screen cloth and 3mm is become the tool elastic network(s) cloth base material of thickness 2.09mm in sintering welding mode, be sintered to adhesive net cloth base material behind the flame scorification polyurethane foam resin 1mm;
4. be dispersed in the aqueous solution with water-based upgrading mylar 40% and titania powder 5%, flood to press and inhale pick up 50%,, wore out 1 minute with 180 ℃ with 120 ℃ of oven dry oven dry in 2 minutes;
5. carry out decrement, surface coarsening with high temperature dye jigger (high temperature JIGGER), the decrement condition is NaOH 20% and bleeding agent 1%, 105 ℃ of liquid temperature, and in 20 to 40 minutes processing times, reduction rate 15 to 25% is cleaned with clear water again;
6. carry out the thickness adjustment with the high temperature dye jigger, 135 ℃ of water temperatures, 20 kilograms of coiling tensions contain under amount of water and the high temperature high-tension and to keep 45 minutes, become thickness 0.8mm elastic network(s) cloth base material;
7. with＜embodiment 1〉electroless plating metallization condition is identical, obtains the elastic conduction cloth material;
8. fire-retardant compound function processing, dipping-pressure is inhaled processing conditions: water-based upgrading mylar 20%+ phosphorus flame retardant 30%, and pick up 70% is with 120 ℃ of oven dry oven dry in 2 minutes, with 180 ℃ aging 1 minute, obtain the halogen-free flame-retardant electromagnetic wave shielding elastic conduction screen cloth material of thickness 0.8mm.
＜embodiment 8 〉
1. polyester fiber screen cloth, totally 135/1 square inch of 135MESH, warp thread weft yarn, thickness 0.09mm;
2. with concise clean, the HEAT SETTING of this screen cloth destarch;
3. the polyurethane foam resin of screen cloth and 3mm is followed mode with the coating of engraved roll adhesion resin part area, become the tool elastic network(s) cloth base material of thickness 3.09mm, engraved roll coating condition: upgrading mylar sticker, viscosity 2000cps, the coating of coating area coverage 60% point-like;
To 8. with＜embodiment 7 identical, obtain the halogen-free flame-retardant electromagnetic wave shielding elastic conduction screen cloth material of thickness 0.8mm.
＜embodiment 9 〉
1. the polyester fiber knitted cloth is justified and is compiled, and the warp thread weft yarn is that 75 Denier/36 fibers are counted processing yarn, the heavy 62G/M of cloth
2, thickness 0.28mm;
2. with concise clean, the HEAT SETTING of this knitted cloth destarch;
3. the polyurethane foam resin of knitted cloth and 3mm is become the tool stretch knit cloth base material of thickness 2.28mm in sintering welding mode, be sintered to bonding knitted cloth base material behind the flame scorification polyurethane foam resin 1mm;
4. be dispersed in the aqueous solution with water-based upgrading mylar 40% and titania powder 3%, flood to press and inhale pick up 80%,, wore out 1 minute with 180 ℃ with 120 ℃ of oven dry oven dry in 2 minutes;
5. carry out decrement, surface coarsening with high temperature dye jigger (high temperature JIGGER), the decrement condition is a NaOH 20%+ bleeding agent 1%, 105 ℃ of liquid temperature, and in 20 to 40 minutes processing times, reduction rate 15 to 25% is cleaned with clear water again;
6. carry out the thickness adjustment with the high temperature dye jigger, 135 ℃ of water temperatures, 10 kilograms of coiling tensions contain under amount of water and the high temperature high-tension and to keep 45 minutes, become thickness 0.9mm stretch knit cloth base material;
7. with＜embodiment 1〉electroless plating metallization condition is identical, obtains elastic conduction knitted cloth material;
8. fire-retardant compound function processing, dipping-pressure is inhaled processing conditions: water-based upgrading mylar 20%+ phosphorus flame retardant 30%, pick up 90%, with 120 ℃ of oven dry oven dry in 2 minutes, with 180 ℃ aging 1 minute, obtain the halogen-free flame-retardant electromagnetic wave shielding elastic conduction knitted cloth material of thickness 0.9mm.
＜embodiment 10 〉
1. the polyester fiber knitted cloth is justified and is compiled, and the warp thread weft yarn is that 75 Denier/36 fibers are counted processing yarn, the heavy 62G/M of cloth
2, thickness 0.28mm;
2. with concise clean, the HEAT SETTING of this knitted cloth destarch;
3. the polyurethane foam resin of knitted cloth and 3mm is followed mode with the coating of engraved roll adhesion resin part area, become the tool stretch knit cloth base material of thickness 3.28mm, engraved roll coating condition: upgrading mylar sticker, viscosity 2000cps, the coating of coating area coverage 60% point-like;
To 8. with＜embodiment 9 identical, obtain the halogen-free flame-retardant electromagnetic wave shielding elastic conduction knitted cloth material of thickness 0.9mm.
＜comparative example 1 〉
1. with the polyester fiber of 125/inch of warp thread 20 Denier/24 fiber numbers, weft yarn 30 Denier/12 fiber numbers, 189/inch of warp-wise density and latitudinal densities, be made into the flat fabric of thickness for about 0.1mm;
2. this flat fabric destarch is concisely cleaned, HEAT SETTING, decrement;
3. the polyurethane foam resin of flat fabric and 3mm is become the tool elastic woven material base material of thickness 2.1mm in sintering welding mode, be sintered to, clean with clear water again with bonding cloth substrate behind the flame scorification polyurethane foam resin 1mm;
4. with＜embodiment 1〉electroless plating metallization condition is identical, obtains thickness 2mm electromagnetic wave shielding elastic conduction cloth material.
＜comparative example 2 〉
1. with the polyester fiber of 125/inch of warp thread 20 Denier/24 fiber numbers, weft yarn 30 Denier/12 fiber numbers, 189/inch of warp-wise density and latitudinal densities, be made into the flat fabric of thickness for about 0.1mm;
2. this flat fabric destarch is concisely cleaned, HEAT SETTING, decrement;
3. the polyurethane foam resin of flat fabric and 3mm is followed mode with the coating of engraved roll adhesion resin part area, become the tool elasticity flat fabric base material of thickness 3.1mm, engraved roll coating condition: upgrading mylar sticker, viscosity 2000cps, the coating of coating area coverage 60% point-like; Clear water is cleaned;
4. with＜embodiment 1〉electroless plating metallization condition is identical, obtains thickness 3mm electromagnetic wave shielding elastic conduction cloth material.
＜comparative example 3 〉
1. composite polyester fiber Nonwovens, elevated temperature heat fusion pressure point (point-like), the adhesion of Nonwovens face fiber point-like adds the strong pulling force tearing strength, the heavy 55G/M of cloth
2, thickness 0.25mm, filament 2 Denier * 51mm.The composite fibre main component: skin is that 35% 190 ℃ of low-melting point polyesters, internal layer are 245 ℃ of polyester fibers of 75% general fusing point;
2. this Nonwovens destarch is concisely cleaned, HEAT SETTING, decrement;
3. the polyurethane foam resin of Nonwovens and 3mm is become the tool elastic non-woven cloth material base material of thickness 2.25mm in sintering welding mode, be sintered to bonding Nonwovens material base material behind the flame scorification polyurethane foam resin 1mm;
4. with＜embodiment 1〉electroless plating metallization condition is identical, obtains thickness 2.1mm electromagnetic wave shielding elastic conduction Nonwovens material.
＜comparative example 4 〉
1. polyester fiber screen cloth, totally 135/1 square inch of 135MESH, warp thread weft yarn, thickness 0.09mm;
2. this screen cloth destarch is concisely cleaned, HEAT SETTING, decrement;
3. the polyurethane foam resin of screen cloth and 3MM is become the tool elastic network(s) cloth base material of thickness 2.09mm in sintering welding mode, be sintered to adhesive net cloth base material behind the flame scorification polyurethane foam resin 1mm;
4. with＜embodiment 1〉electroless plating metallization condition is identical, obtains thickness 2mm electromagnetic wave shielding elastic conduction screen cloth material.
＜comparative example 5 〉
1. the polyester fiber circle is compiled knitted cloth, and the warp thread weft yarn is that 75 Denier/36 fibers are counted processing yarn, the heavy 62G/M of cloth
2, thickness 0.28mm;
2. this knitted cloth destarch is concisely cleaned, HEAT SETTING, decrement;
3. the polyurethane foam resin of knitted cloth and 3mm is had an elastic network(s) cloth base material with what sintering welding mode became thickness 2.28mm, be sintered to bonding knitted cloth base material behind the flame scorification polyurethane foam resin 1mm;
4. with＜embodiment 1〉electroless plating metallization condition is identical, obtains thickness 2.1mm electromagnetic wave shielding elastic conduction knitted cloth material.
＜comparative example 6 〉
1. the polyester fiber circle is compiled knitted cloth, and the warp thread weft yarn is that 75 Denier/36 fibers are counted processing yarn, the heavy 62G/M of cloth
2, thickness 0.28mm; The composite polyester fiber Nonwovens, elevated temperature heat fusion pressure point (point-like), the adhesion of Nonwovens face fiber point-like adds the strong pulling force tearing strength, the heavy 55G/M of cloth
2, thickness 0.25mm, filament 2 Denier * 51mm.The composite polyester fiber main component: skin is that 35% 190 ℃ of low-melting point polyesters, internal layer are 245 ℃ of polyester fibers of 75% general fusing point;
2. knitted cloth and Nonwovens are become the tool elastic substrate of thickness 2.53mm with the polyurethane foam resin of 4mm in two-sided sintering welding mode respectively, two-sided being sintered to bonding Nonwovens behind flame scorification polyurethane foam resin each 1mm of two sides is distributed in different with knitting;
3. this elastic woven material destarch is concisely cleaned, HEAT SETTING, decrement;
4. with＜embodiment 1〉electroless plating metallization condition is identical, obtains thickness 2.4mm electromagnetic wave shielding elastic conduction cloth material.
＜comparative example 7 〉
1. polyester fiber stereo fabric, upper and lower surface is 75 Denier polyester fibers, middle three-dimensional silk and to link upper and lower surface be 30 Denier polyester fibers, the heavy 380G/M of cloth
2, thickness 2.1mm;
2. this stereo fabric destarch is concisely cleaned, HEAT SETTING, decrement;
3. with＜embodiment 1〉electroless plating metallization condition is identical, obtains thickness 2.0mm electromagnetic wave shielding elastic conduction stereo fabric material.
＜comparative example 8 〉
1. polyester fiber liquid drugs injection formula Nonwovens utilizes super-pressure liquid drugs injection entangled fiber, the made Nonwovens of any chemical substance of mat not, several 1.75 Denier of fiber Denier, the heavy 100G/M of cloth
2, thickness 0.6mm;
2. this Nonwovens destarch is concisely cleaned, HEAT SETTING, decrement;
3. with Nonwovens and＜embodiment 1〉electroless plating metallization condition is identical, obtains thickness 0.6mm electromagnetic wave shielding conduction Nonwovens material.
＜test and result 〉
Following table 1 is listed the physical property measurement comparison sheet of embodiment 1 to 10 to comparative example 1 to 8 obtained conductive fabric.
Sheet resistance (the method for testing of Ω/): i.e. testing level direction impedance, 10 centimetres x10 centimetre of cutting conduction cloth specimen warp-wise and broadwise, according to JIS K-7194 standard, test machine is Mitsubish Loresta MCP-T600, the four-point probe method of testing reads stable sheet resistance numerical value with the test probe concora crush in the surface of conductive fabric.
Volume impedance (Ω) method of testing: promptly test the above-below direction impedance, 1 inch x1 inch of cutting conduction cloth specimen warp-wise and broadwise, the filled gold plate that connects 1 inch square of each a slice up and down with microhmmeter, conduction cloth is lain against in the middle of the metallic plate, the upper metal plate is put down and place 500 gram counterweight loadings, read stable volume impedance value.
Compression back thickness slip (%): 10 centimetres x10 centimetre of cutting conduction cloth specimen warp-wise and broadwise, specimen thickness X (mm), sample is put under the corrosion resistant plate of 3 kilograms of 10 centimetres x10 centimetres, weight, place after 300 hours, 3 kilograms of loading things are removed, after leaving standstill 4 hours under the standard environment, specimen thickness Y (mm), compression back thickness slip: (X-Y)/X*100%=Z%, X: original elastic conductive cloth material thickness (mm), Y: compress thickness (mm) after 300 hours, Z: thickness slip.
Compressible (%): 10 centimetres x10 centimetre of cutting conduction cloth specimen warp-wise and broadwise, specimen thickness A (mm), sample is put under the corrosion resistant plate of 3 kilograms of 10 centimetres x10 centimetres, weight, specimen thickness B (mm), compressible (%): (A-B)/A*100%=C%, A: original elastic conductive cloth material thickness (mm), B: compression back thickness (mm), C: compression ratio.
Environmental testing (weatherability): temperature, relative humidity, time conditions, ℃ * 5HRS → 20, ℃ * 90%RH*10HRS → 120,50 ℃ of * 80%RH*5HRS → 90 ℃ * 10HRS → 40, ℃ * 50%RH*5HRS →-15 ℃ * 65%RH*5HRS, repeat 5 times loop test, observe appearance color and change:
Zero: outward appearance does not almost have change
△: a little changes oxidation outward appearance
*: appearance color seriously changes and oxidation
Metal adherence: with 3M 610 adhesive tapes, 1.9 centimetres of width, 15 centimetres of length are smooth in the conductive fabric material surface, after coming back pressure 10 times with heavy 2 kilograms stainless steel roller, 3M 610 adhesive tapes are torn fast by test sample surface, differentiate the metal dust be adhered on the adhesive tape what, metal adherence and number criterion are divided into 5 grades, wherein the 1st grade of expression contains a large amount of metal dusts, and the 5th grade of expression almost do not have metal dust.
Cutting metal fragment drops: 10 centimetres x10 centimetre of cutting conduction cloth specimen warp-wise and broadwise cut sample after 1 centimetre of spacing becomes 10 samples metal and the conductive fabric material break flour situation that drops with steel knife.
Zero: almost do not have break flour and drop
△: a little metal powder and cloth substrate drop
*: metal powder and cloth substrate drop very serious
Soil resistance: 10 centimetres x10 centimetre of cutting conduction cloth specimen warp-wise and broadwise, test hand trace is for material surface contaminative and remaining trace.
Zero: almost pollution-free vestige
△: a little pollutes vestige
*: it is very serious to pollute vestige
Anti-flammability: the UL94 standard, 5 inches of specimen length, 0.5 inch of width, the V0 grade: igniting contact sample was removed burning things which may cause a fire disaster after 10 seconds, and test pieces burnt away 10 seconds in.
The V1 grade: igniting contact sample was removed burning things which may cause a fire disaster after 10 seconds, and test pieces burnt away 30 seconds in.
Electromagnetic wave shielding value (dB value): 13.2 centimetres x13.2 centimetre of cutting conduction cloth specimen warp-wise and broadwise, according to ASTM D4935 testing standard, tester table Agilent vector network analyzer, type is E5062A, test frequency scope 300kHz to 3GHz, the coniform metallic copper tool of shielding rate sample test are 7.6 centimetres of internal diameters, 13.2 centimetres of external diameters.Electromagnetic wave shielding value (dB value)=20log (Ei/Et) dB, Ei: the electric-field intensity of incidence wave (volts/m), Et: the electric-field intensity of penetrated wave (volts/m).
＜table 1〉the physical property measurement comparison sheet
| Resin compounded is handled | The high temperature dye jigger is handled | Thickness (mm) | Sheet resistance (Ω/) | Volume impedance (m Ω) | Thickness slip (%) | Compressible (%) | Weatherability | Metal adherence (progression) | Cutting chip drops | Soil resistance | Flame retardant rating UL94 | Electromagnetic wave shielding value dB (@1GHz) | Overall assessment | |
| Embodiment 1 | Have | Have | 0.5 | 0.03 | 18 | 5.2 | 30 | ○ | 5 | ○ | ○ | -- | 85 | Good |
| Embodiment 2 | Have | Have | 0.5 | 0.035 | 20 | 5.3 | 30 | ○ | 5 | ○ | ○ | V0 | 85 | Good |
| Embodiment 3 | Have | Have | 0.5 | 0.03 | 18 | 5.3 | 30 | ○ | 5 | ○ | ○ | -- | 85 | Good |
| Embodiment 4 | Have | Have | 0.5 | 0.035 | 20 | 5.4 | 30 | ○ | 5 | ○ | ○ | V0 | 85 | Good |
| Embodiment 5 | Have | Have | 1.3 | 0.03 | 19 | 5.4 | 30 | ○ | 5 | ○ | ○ | -- | 87 | Good |
| Embodiment 6 | Have | Have | 1.3 | 0.035 | 20 | 5.5 | 35 | ○ | 5 | ○ | ○ | V0 | 87 | Good |
| Embodiment 7 | Have | Have | 0.8 | 0.04 | 20 | 5.6 | 35 | ○ | 5 | △ | ○ | V0 | 82 | Good |
| Embodiment 8 | Have | Have | 0.8 | 0.04 | 21 | 5.8 | 35 | ○ | 5 | △ | ○ | V0 | 82 | Good |
| Embodiment 9 | Have | Have | 0.9 | 0.04 | 19 | 6.2 | 32 | ○ | 5 | ○ | ○ | V0 | 88 | Good |
| Embodiment 10 | Have | Have | 0.9 | 0.04 | 20 | 6.2 | 32 | ○ | 5 | ○ | ○ | V0 | 88 | Good |
| Resin compounded is handled | The high temperature dye jigger is handled | Thickness (MM) | Sheet resistance (Ω/) | Volume impedance (m Ω) | Thickness slip (%) | Compressible (%) | Weatherability | Metal adherence (progression) | Cutting chip drops | Soil resistance | Flame retardant rating UL94 | Electromagnetic wave shielding value dB (@1GHz) | Overall assessment | |
| Comparative example 1 | Do not have | Do not have | 2.0 | 0.04 | 23 | 22 | 32 | △ | 3 | × | × | -- | 85 | Difference |
| Comparative example 2 | Do not have | Do not have | 3.0 | 0.04 | 25 | 23 | 35 | △ | 3 | × | × | -- | 88 | Difference |
| Comparative example 3 | Do not have | Do not have | 2.1 | 0.04 | 23 | 20 | 32 | × | 2 | △ | × | -- | 86 | Common |
| Comparative example 4 | Do not have | Do not have | 2.0 | 0.04 | 23 | 23 | 30 | × | 1 | △ | × | -- | 85 | Difference |
| Comparative example 5 | Do not have | Do not have | 2.1 | 0.04 | 22 | 20 | 35 | × | 2 | × | × | -- | 86 | Difference |
| Comparative example 6 | Do not have | Do not have | 2.4 | 0.04 | 24 | 21 | 32 | × | 2 | △ | × | -- | 87 | Common |
| Comparative example 7 | Do not have | Do not have | 2.0 | 0.04 | 23 | 12 | 14 | × | 3 | × | × | -- | 85 | Difference |
| Comparative example 8 | Do not have | Do not have | 0.6 | 0.04 | 18 | 5 | 6 | △ | 2 | ○ | × | -- | 80 | Difference |
In sum, manufacture method of the present invention is that Foamex is adhered at least one surface of cloth, formation has flexible cloth, and form the resin film that adds powder in dipping-pressure suction mode thereon, carry out again the surface coarsening decrement of film via high-temp. jig dyeing machine, metal is thrown the anchor effect when improving metallization, the reinforcement metal adherence, and prevent the embrittlement in follow-up when metallization or aging, at last again with mylar separately or add phosphorus flame retardant, form resin film in dipping-pressure suction mode in design on fabric surface, the metal fragment advantage such as drop when giving metal surface soil resistance, anti-flammability, the weatherability of elastic conduction cloth material and preventing following process has great help for the usage range field of conductive fabric is real.
Claims (13)
1. the manufacture method of an elastic conductive cloth, it comprises the following steps:
One cloth that is made into natural fabric or artificial fibre is provided;
Foamex is adhered at least one surface of described cloth, forms the rubber-like cloth;
The first film that has a large amount of superfine holes in described Foamex surface formation one;
Electroplate so that described cloth is metallized at described the first film: and
Form one second film on described metallized fabric surface.
2. manufacture method as claimed in claim 1, wherein said natural fabric comprise cotton, fiber crops, silk or hair, and described artificial fibre comprises rayon fibers, nylon fiber, polyester fiber or acryl fiber.
3. manufacture method as claimed in claim 1 wherein comprises in addition before the step of coating Foamex described cloth is carried out hot calendered technology at least one time, to reduce the thickness of cloth.
4. manufacture method as claimed in claim 1, the mode of the described Foamex of wherein adhering comprises sintering or engraved roll is followed resin-coated mode, to form foamed resin layer on the cloth surface.
5. manufacture method as claimed in claim 1, wherein said Foamex comprise solvent-borne type or aqueous foaming resin, and resin viscosity is that about 500cps is to about 8000cps.
6. manufacture method as claimed in claim 5, wherein said Foamex comprise polyurethane foam resin, polyester foamed resin, acryl Foamex, emulsion foaming resin or silicone Foamex.
7. manufacture method as claimed in claim 1, the method that wherein forms described the first film are included in the water-based of adding inorganic powder or the solvent type resin and form in dipping-pressure suction mode.
8. manufacture method as claimed in claim 7, wherein said inorganic powder comprises silica or titania powder.
9. manufacture method as claimed in claim 1, the method that wherein forms a large amount of superfine holes on described the first film surface comprises with the high temperature dye jigger carries out the decrement processing technology.
10. manufacture method as claimed in claim 9 wherein comprises the thickness adjustment of carrying out cloth with the high temperature dye jigger in addition after the step of carrying out the decrement processing technology.
11. manufacture method as claimed in claim 1, wherein said plating comprises electroless plating, with the metal level at the even plated with copper in cloth surface, nickel, silver, gold or its alloy.
12. manufacture method as claimed in claim 1, the method that wherein forms described second film is included in the water-base resin and forms in dipping-pressure suction mode.
13. manufacture method as claimed in claim 12, wherein said water-base resin comprises organic resin and fire retardant, and described fire retardant comprises halogen, aluminium hydroxide, inorganic antimony based compound or organophosphor based compound.
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