CN1130223A - Electric heating, shielding, anti-static multifunctional conductive fabric and its preparing method - Google Patents
Electric heating, shielding, anti-static multifunctional conductive fabric and its preparing method Download PDFInfo
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Abstract
The preparation method of the present invention consists of degreasing and dirt removing, electrochemical activating treatment, metallization treatment and surface protection treatment. Through the above processes the fabrics or knit goods of various matrix material can be compounded into conducting fabric with the resistivity in 0.0001-100000 ohm cm range. The conducting fabric made by said method features low cost, light weight, soft, capable of washing, good for environmental stability and remachinability, capable of using as conducting material, shielding material for electromagnetic wave and microwave and heating material, and extensively applicable in the fields of aeronautics, astronautics, electronics, instruments, environmental protection, chemical engineering, medical treatment and health care etc.
Description
The present invention be a kind of to matrix material (original fabrics) after treatment, be combined into new electrically heating, shielding, anti-static multifunctional conductive fabric and its preparation method. Provided by the present invention, conductive fabric can be widely used in the fields such as aviation, space flight instrument, electronics, environmental protection, chemical industry, medical health protection.
So far, mainly carry out electromagnetic shielding by following three kinds of approach both at home and abroad.
1, metal forming (net) shielding method: a kind of is to cover electronic equipment with metal forming (net), carries out the integral body shielding, and the method is simple, but effect is relatively poor, and use is made troubles to instrument and equipment. Another kind common method is in non-metal shell surface label metal forming (such as aluminium foil), can obtain good shielding, but to complex-shaped, the equipment construction difficulty of hole, recess is arranged, and shielding not exclusively; Metal forming and housing depend on bonding dose in conjunction with intensity, general adhesion is relatively poor, the edge easily openable.
2, conduction coated layer shielding method: a kind of method that is current extensive use, mainly contain metal spraying (such as the electric arc zn spraying layer), make the organic conductive coating of filler with the metal powder, electroplate and the chemistry plating, the technology such as vacuum vapor deposition, their mainly excellent, shortcoming can see Table 1.
Excellent, the shortcoming of several main shielding coated layers of table 1
| The coated layer kind | Advantage | Shortcoming |
| Electric arc zn spraying | The shielding effect is good, and technique is simple | Thickness is large, and is uneconomical; Coating is inhomogeneous, and is loose porous, easily surface oxidation and reduce the shielding effect; At high temperature spraying may cause plastic deformation. |
| The organic conductive coating | Technique is simple, and the matrix material is unrestricted, the contact resistance stabilization, and anti-corrosion property is good. | Thickness is large, and is uneconomical; The shielding effect is medium, and coating is inhomogeneous; Wearability is poor. |
| Chemistry plating (copper, copper+nickel) | Coating is even, and the shielding effect is good; Coating is thin, and the structure weightening finish is few. | The plastic substrate material is had selectively; The easy oxidation of chemical plating copper layer and reduce the shielding effect; Be unsuitable for to contact the member of water. |
| Electroplate in (gold, silver, copper, nickel, tin etc.) | The shielding effect is good, and technique is simple. | Uneven coating is even, is unsuitable for the complicated shape product; Be unsuitable for the member that can not soak. |
| Vacuum plating and sputter plating | Non-environmental-pollution | Binding force of cladding material is poor, apparatus expensive, and the member size is subjected to the equipment capacity limit. |
3, make electronic equipment casing with Markite or composite: the one, development electric conductivity high polymer; The 2nd, in resin-based, fill the conducting objects such as metal or graphite powder, scale, fiber, make composite conducting material. This class material is with respect to continuous coated layer, electric conductivity and shielding action all a little less than; The adding of filler might affect the mechanics performance of material or member; Be generally with the moulding of member time processing, re-workability is poor. So be in so far the development stage, not yet in industrial extensive application.
Thermo electric material has large development in recent years, develop into various new electric heating conversion material from traditional resistance wire, mainly contain the carbon resistance thermo electric materials such as carbon film, carbon fiber, ceramic electric heating material (PTC, CTD material), organic electric heating material (organic PTC) etc., these new materials mostly are thin-film material, and higher electric conversion efficiency is arranged. But traditional resistance wire no matter, or above-mentioned new material has gentle poor toughness can not folding, gentle common shortcoming of rubbing with the hands, and carbon film or ceramic film also easily come off, breakage, and be restricted service life. Therefore, the electric heating products made from these materials should not collide with, folding, more can not directly wash with water.
So far, the approach of producing conductive fabric both at home and abroad mainly is following two kinds:
1, form slip with conducting staple fiber (such as carbon fiber, metalized fibers), the shop is applied and is pressed into nonwoven, such as EP-139193
2, with the weaving of conductive fiber or wire or be woven into fabric, such as JP-59094618, EP-163805, EP-43040, EP-117393, DE-330158 etc.
Wherein, nonwoven electric conductivity is not high, and thickness is large, and tensile strength is low, thereby serviceability is relatively poor. Wire braid then increases weight greatly, and technique is more loaded down with trivial details, and cost is high, and is not soft. Early stage conductive fiber mostly is the fiber of having filled conductive metallic compound (tin oxide, sulfonation are cuprous, titanium oxide etc.), because the electric conductivity of metallic compound own and chemical stability are not high, also relatively poor with fibrous binding force, thereby be not used widely. In recent years developed the fiber of surface metalation (copper, nickel etc.), its electric conductivity, chemistry stability all increase with fibrous binding force, but the metalized fibers preparation is difficulty relatively, be difficult to produce in enormous quantities, spin that (volume) knits, easily impaired or oxidation of metal layer in the process that fabric is processed in printing and dyeing, rear arrangement etc., the electric conductivity of fabric being descended and inhomogeneous, still is not desirable conductive fabric.
In recent years domestic patent (D06M11/04 CN1021924C ZL88100557) unique release that " contains conductive fabric and the preparation thereof of polypropylene nitrile fiber " is carried out conductive processing to molded fabric integral body and is obtained the technology of conductive fabric, this patent specification shows, be characterized in the fabric (polyacrylonitrile fiber fabric) to containing special component, by chemical treatment, the cuprous combination with the polyacrylonitrile fiber of the conductive metallic compound of new ecology sulfuration obtained conductive fabric under 80～100 ℃ of high temperature. Metallic compound content accounts for 0.1～30% of fabric gross weight in this conductive fabric, and fabric resistivity is 1 * 105～1×10
-2Ω cm, electric conductivity is lasting, chemical good stability, feel is soft, can wash, and good cycling processability is arranged. But find out also that from its patent specification conductive materials adopts sulfuration cuprous, and content is not more than 30% (weight), so that the electric conductivity of such conductive fabric still is starkly lower than metal guide is electrical. Secondly, should only be the polyacrylonitrile kind fabric by the applicable matrix material (original fabrics) of art, i.e. acrylic fibers fabric, scope is narrow. The conductive processing process need to need fully washing through 80～100 ℃ of high temperature after the processing, comprise and soaping and hot water wash that cuprous to remove the sulfuration of not being combined with fiber and adhering to, the technique process is still easy not; Two kinds of solution of A, B could mix when conductive processing, and solution can only disposablely use, and are economical not. So the application of this technology on engineering is restricted.
Another technology related to the present invention is the chemical plating process of nonmetallic materials, this technique is known technology, but existing chemistry plating traditional handicraft and domestic patent such as C23C18/16 CN87100440A) for nonmetallic materials are the electrically non-conductive materials such as plastics, glass, pottery, bamboo woodwork, timber, building stones, gypsum, cement goods, and be the outer surface plating at material or goods, there is no the mature technology that proposes to spin the plating of (volume) fabric chemistry, thereby the technology of prior art and the present invention's proposition, at solution formula, all have any different in the aspects such as technique condition.
The objective of the invention is: proposing a kind of the utilization multiplely has organic fiber or without the matrix material fabric of organic fiber, it is more good to become after treatment performance, and function is many, is applicable to novel conductive fabric and its preparation method of industrial production and application.
Conductive fabric resistivity provided by the invention has good shielding electromagnetism/Radio frequency interference, the function of anti-microwave radiation during close to metal; When fabric resistivity during in specific scope, good electric heating conversion function is arranged, antistatic, thunderbolt ability, etc. Be a kind of multi-functional conductive material, have simultaneously light weight, softness, can wash, electric conductivity and stable chemical performance are easily processed the advantages such as moulding. Can be widely used in the fields such as aviation, space flight, electronics, instrument, environmental protection, chemical industry, health care as electromagnetic shielding material, conductive material and plane heating material. This material can independently use, and prepares various products, also can spread spread on non-metallic member surface or as interlayer spread spread among the polymer based composites and bring into play its electric heating, shielding, antistatic, etc. several functions.
The present invention adopts chemical method that matrix material (being original fabrics) is carried out whole composite modified processing, makes fabric exterior and consists of the fiber surface metalation of fabric, thereby obtain original fabrics and metal composite and the conductive fabric that forms.
Electric heating, shielding, anti-static multifunctional conductive fabric that the present invention is prepared, its matrix material (original fabrics) can be multiple have organic fiber and textile, knitting and the nonwoven made without organic fiber. Such as cotton, fiber crops, silk, carbon fiber, glass fibre, polyamide (nylon), polyvinyl alcohol contracting formaldehyde (polyvinyl), polyacrylonitrile (acrylic fibers), poly terephthalic acid ethylene glycol ester (terylene), two kinds and blending (volume) fabric of two or more fibers in textile, knitting or the above-mentioned fiber of the organic polymer fibers such as polypropylene (polypropylene fibre) and polyvinyl chloride (polyvinyl chloride fibre). After processing through preparation method of the present invention, the matrix material becomes and has 1 * 10-4～1×10
5The conductive fabric of Ω cm resistivity.
The preparation method of this electric heating, shielding, anti-static multifunctional conductive fabric, its whole techniques can be carried out under 10～60 ℃ of low temperature. The typical process flow of the matrix material being carried out composite modified processing is: one, to degreasing and the scale removal of matrix material; Two, electro-chemical activity is processed; Three, metalized (chemistry plating); Four, surfacecti proteon is processed.
(1) degreasing and scale removal: wash by hand or the machine washing mode is fully washed matrix material (original fabrics), to remove grease, dust, slurry and other dirts on the fabric, make it have the surface of good wetability and cleaning. Washing agent is soda ash, soap and synthetic detergent etc. The abundant rinsing of rear application clear water of soaping is clean.
Here the surface of mentioning means fabric exterior and consists of the general name on surface of the fiber of fabric, lower with.
(2) electro-chemical activity is processed:
The matrix material is pressed sensitization, activation, reduction operation successively at particular solution (sensitization treatment fluid, activation process liquid, the reduction treatment fluid) in process, make original fabrics obtain metallic reducing is had the surface of catalytic action and good combination power, each operation can be carried out with soaking, brush, spray three kinds of modes.
The sensitization treatment fluid is comprised of the hydrochloric acid solution that contains reducing metal ion and stabilizing agent BHV. Reducing metal ion commonly used is Sn2+Ion, concentration are 0.1～80g/l. Stabilizing agent BHV is by arylsulphonate and the 2～10g/l Low Valent Vanadium ion (V of 20～2Kg/l3+、V
2+) formulated, use concentration is 5～100mg/l. Hydrochloric acid (proportion 1.19) concentration is 5～140ml/l. Solution is formulated by distilled water or deionized water.
Activation process liquid is by the Pd of 0.1～2.5g/l2+Ion and HL hydrochloric acid reagent, formulated with distilled water or deionized water. The common consumption of HL hydrochloric acid reagent is 2～50ml/l, and the alkyd that 0.1～0.5g is contained 3～6 carbon atoms is dissolved in 50% hydrochloric acid of 1000ml formulated.
After sensitization and the activation process, all use clear water or deionized water is fully cleaned.
Reduction is processed and be can further improve the catalytic activity of fabric face, and removes the activating solution that remains in fabric face. The reduction treatment fluid can with also stoste used in traditional nonmetallic materials pre-electroplating treatment, be generally 10～30g/l ortho phosphorous acid sodium water solution.
To the original fabrics of some material, such as glass fabric, for improving its hydrophily (wetability), can before processing, sensitization carry out first hydrophilic treated, and hydrophilic processing liquid commonly used is for containing 6～10g/lF-The aqueous solution of ion.
(3) metalized: the original fabrics after the electro-chemical activity processing is immersed in the chemical plating metal solution (such as two complexing agent copper plating baths), make plating bath soak into whole fabric, thereby having on the fabric fibre surface of catalytic activity, under the reducing agent effect, the conjugation that the reduction of metal ion negative electrode and reducing agent oxidation occurs and separate out hydrogen is reacted. The metal film that reduce deposition goes out has catalytic property, so the reaction of this conjugation is a kind of from catalytic reaction, makes metal continue to carry out and generate continuously at the reduction on fabric and fabric fibre surface and Energy Deposition, and certain thickness metal coating is arranged, and makes metallization of fabric. This operation can adopt soaks, brushes, sprays three kinds of modes and carry out.
The present invention mainly adopts copper or copper/nickel chemistry plating to make metallization of fabric.
Copper metallization is processed and is adopted a kind of pair of complexing agent chemical bronze plating liquid, and it consists of: 2～30g/l Cu2+Ion, 5～140g/1 tartaric acid salt, 10～100g/l edetate, 5～140g/l NaOH, 5～140ml/l formaldehyde (36%), 10～50mg/lHG reagent, 20～200mg/lSCL reagent. Wherein HG reagent is the additive that improves quality of coating, by the low molecular weight amino acid that contains 2～3 carbon atoms and formulated by 1: 10 (weight ratio) without water-ethanol. SCL reagent is stabilizing agent, is formed with 1.2: 1 (weight ratio) ratio mixed preparing by pyridine and derivative thereof and the potassium ferricyanide.
It is on above-mentioned chemical plating copper layer that copper/nickel metallization is processed, and metal lining nickel can adopt known low-temperature alkali nickel chemical plating technology again.
(4) surfacecti proteon is processed: for suppressing conductive fabric in storage, transportation, processing and use procedure, because making electric conductivity, the metal oxidation reduces, can in the aqueous solution that contains 1～5g/l benzotriazole or its derivative, soak 5～10 minutes the conductive fabric that only carries out the copper metallization processing, make copper layer surface form the layer of surface complex layer, to reach the inhibition purpose.
(5) each Treatment Solution provided by the invention all can once be prepared, and reuses for a long time. But reply solution main component is carried out periodic analysis, is replenished adjustment, to guarantee normal production.
(6) through the conductive fabric of above-mentioned technique preparation, can use purpose according to difference, control metalized time, each component content of solution, the technique condition such as treatment temperature and obtain 1 * 10-4～1×
10
5The resistivity of Ω cm. For example, as electromagnetic shielding material, should obtain low-resistivity. When resistivity during less than 0.1 Ω cm, in 0.1MHz～12GHz frequency scope, effectiveness reaches more than the 60dB, by US Federal Communication Committee's regulation, can well shield precision instrument and military equipment, is used for having the occasion of serious electromagnetic interference. During as thermo electric material, should require and the medium conductive fabric of external power magnitude of voltage selection preparation according to heating. When resistivity is 1 * 10-1～1×10
2During Ω cm, add 6～9V direct current voltage, namely comparable environment temperature raises 8～20 ℃, and heating efficiency is high, quick heating.
Advantage of the present invention is:
1, directly makes fabric and metal composite and form conductive fabric, need not to prepare in advance conductive fiber, and then spin (volume) and be made into type. The conductive fabric manufacturing technique is simple, and flexibly, cost is low, various Treatment Solution are reusable, and construction temperature is low, and is energy-conservation.
2, compare with the various conductive fabrics of prior art preparation, the variable scope of conductive fabric resistivity of the present invention's preparation is large, and high conductivity is close to metal, and electric conductivity is even and durable, and ambient stable is good.
3, the present invention couple does not have special requirement with the matrix material (original fabrics) of metal composite, and is applicable in existing each kind fabric.
4, the conductive fabric made of the present invention with respect to the weightening finish of matrix material seldom and has kept light weight, the softness of original fabrics, characteristic and original intensity, the toughness such as can wash.
5, have good cycling processability, can cut out arbitrarily, sew, spread the operations such as deposited, bonding.
6, different according to resistivity and metallization layer thickness, can possess respectively conduction, shielding electromagnetism/Radio frequency interference, anti-microwave radiation, antistatic, anti-lightning strike, electric heating conversion several functions such as (face heatings). The resistivity of fabric can be controlled by the selection of preparation process condition easily.
The specific embodiment of the invention is as follows:
The preparation of embodiment 1, conduction victoria blended spinning cloth
1, victoria blended spinning cloth is at room temperature cleaned with detergent solution. Then degreasing and scale removal are carried out in mobile water rinsing.
2, sensitization is processed: take by weighing the inferior tin of 20g chlorination, be dissolved in the 250ml20% hydrochloric acid solution, after the dissolving, add BHV reagent 20ml fully, be diluted to 1 liter after the stirring evenly, namely be mixed with the sensitization treatment fluid. Vinylon and cotton blend is at room temperature immersed in the sensitization liquid, processed 5～10 minutes under 0.5～1 m/min condition to move speed relative to solution.
3, with the vinylon and cotton blend of rinsed with deionized water or spray drip washing sensitization.
4, the active processing: get 0.3g chlorination palladium and be dissolved in the 100ml water, add 8ml HL hydrochloric acid reagent fully after the dissolving, dilute 1 liter, namely be mixed with activation process liquid. The vinylon and cotton blend of sensitization is immersed activating solution, is to process 5～10 minutes under 0.5～1 m/min the condition in the speed that moves with respect to solution.
5, water rinsing or the vinylon and cotton blend that activated of spray drip washing.
6, reduction is processed: the vinylon and cotton blend that will activate soaked 1～2 minute in 25g/l ortho phosphorous acid sodium solution.
7, metalized: the electroless copper liquid making method is: 35g ethylenediamine tetra-acetic acid sodium and 21g Tartaric acid potassium sodium are dissolved in respectively in a small amount of deionized water, then mixed, be diluted to 500ml, add 12g NaOH, add 24g copper sulphate fully after the dissolving, fully stirring is dissolved it fully. Add successively 20mgHG reagent under constantly stirring, 80mgSCL reagent adds 20ml formaldehyde fully after the dissolving, be diluted to 1 liter.
Vinylon and cotton blend after reduction processed is without the direct immersion chemical bronze plating liquid of washing, and with 0.5～1 m/min speed of related movement plating 5～6 minutes, bath temperature remained on 25 ± 2 ℃.
8, water rinsing or the vinylon and cotton blend that metallized of spray drip washing.
9, protective treatment: the vinylon and cotton blend that metalized is crossed immersed 1g/l benzotriazole solution 10 minutes.
10, dry or dry.
As above made conduction vinylon and cotton blend resistivity is 1～10 Ω cm, is suitable for doing plane heating material.
The preparation of embodiment 2, conduction silk
1～6 procedure is with embodiment 1
7, metalized (): Treatment Solution (chemical bronze plating liquid) compound method is with embodiment 1, prescription consists of: 16g/l copper sulphate, 25g/l ethylenediamine tetra-acetic acid sodium, 15g/l Tartaric acid potassium sodium, 10g/1 NaOH, 20mg/lHG reagent, 60mg/lSCL reagent, 14g/l formaldehyde (36%).
Immerse in the solution, under 35 ± 2 ℃, with 0.5～1 m/min speed of related movement immersion plating 30～40 minutes reducing the silk of processing.
8, water rinsing or spray drip washing
9, metalized (two): Treatment Solution (chemical nickel plating) prescription is: 40g/l sulfuric acid nickel, 18g/l citric acid trisodium, 15g/l ammonium chloride, 35g/l triethanolamine, 40g/l inferior sodium phosphate.
The silk of copper metallization is immersed solution, under 35 ± 1 ℃, with 0.5～1 m/min speed of related movement immersion plating 20～25 minutes.
10, water rinsing or spray drip washing.
11, dry or dry.
Prepared conduction silk sheet resistance is 0.01～0.1 Ω cm-2, the effectiveness in 300MHz～12GHz frequency scope is 50～75dB, is good electromagnetic shielding material.
Embodiment 3, the preparation of electroconductive glass fibre cloth
1, degreasing, dirty removing processing: in 50ml/l goldfish washing agent, under the room temperature glass cloth was soaked 10～15 minutes, clean clean with the water that flows after taking out.
2, hydrophilic treated: with hydrophilic processing liquid (100ml/l hydrofluoric acid, the aqueous solution of 15g/l sodium fluoride), at room temperature, evenly brushed 10～15 minutes on the glass fabric of degreasing scale removal with 1～2 m/min mobile speed, then rinse well with mobile water.
3, sensitization is processed: the sensitization treatment fluid is the inferior tin of 120g/l chlorination, 100ml/l hydrochloric acid, 30ml/lBHV reagent.
At room temperature, on the glass cloth that hydrophilic treated is crossed, evenly brushed 5～10 minutes with 1～2 m/min motion speed with the sensitization treatment fluid, then rinse well with mobile water.
4, activation process: activating solution is 2g/l chlorination palladium, the aqueous solution that the 40ml/l hydrochloric acid reagent forms.
At room temperature, on the glass cloth of activating solution after sensitization is processed, evenly brushed 5～10 minutes with 1～2 m/min motion speed, then rinse well with mobile water.
5, reduction is processed: prescription for the treatment of liquid is with embodiment 1, but carries out with the brushing mode of 3,4 operations, need not wash after the processing.
6, metalized: copper plating solution is 75g/l copper sulphate, 140g/l Tartaric acid potassium sodium, 25g/l ethylenediamine tetra-acetic acid sodium, 75g/l NaOH, 120ml/l formaldehyde, 40g/lHG reagent.
With the mode identical with 3,4 operations brush plating 20～30 minutes on the glass cloth processed of reduction.
7, mobile water is rinsed well
8, hot blast drying or oven dry
Prepared electroconductive glass fibre cloth resistivity is 0.05～0.1 Ω cm, spread in the fiberglass (glass fiber reinforced epoxy resin based composites) as the interlayer shop, deposit in 300MHz～12GHz frequency scope, effectiveness is 47～65dB, through the thermal shock test, after the ambient stable tests such as heat-resisting test and salt fog test, this has the capability of electromagnetic shielding of the composite sample of conductive fabric interlayer to have no reduction.
Claims (8)
1, a kind of electric heating, shielding, anti-static multifunctional conductive fabric, it is characterized in that: its matrix material (original fabrics), it is the textile that organic fiber is arranged and make without organic fiber by various, knitting and nonwoven, such as two kinds and blending (volume) fabric of two or more fibers in textile, knitting or the above-mentioned fiber of the organic polymer fibers such as cotton, fiber crops, silk, carbon fiber, glass fibre, polyamide (nylon), polyvinyl alcohol contracting formaldehyde (polyvinyl), polyacrylonitrile (acrylic fibers), poly terephthalic acid ethylene glycol ester (terylene), polypropylene (polypropylene fibre) and polyvinyl chloride (polyvinyl chloride fibre), after processing through preparation method of the present invention, become and have 1 * 10-4
～1×10
5The conductive fabric of Ω cm resistivity.
2, the preparation method of a kind of electric heating, shielding, anti-static multifunctional conductive fabric, it is characterized in that: its whole techniques are carried out under 10～60 ℃ of low temperature, and the typical process flow of the matrix material being carried out composite modified processing is: one, to degreasing and the scale removal of matrix material; Two, electro-chemical activity is processed; Three, metalized (chemistry plating); Four, surfacecti proteon is processed.
3, preparation method according to claim 2, it is characterized in that: it is to wash by hand or the machine washing mode is fully washed matrix material (original fabrics) that the matrix material is carried out degreasing and dirty removing processing, to remove grease, dust, slurry and other dirts on the fabric, make it have the surface of good wetability and cleaning, washing agent is soda ash, soap and synthetic detergent etc., and the abundant rinsing of rear application clear water of soaping is clean.
4, preparation method according to claim 2, it is characterized in that: the matrix material through degreasing and scale removal is carried out electro-chemical activity process, treatment step is: the matrix material is processed in particular solution (sensitization treatment fluid, activation process liquid, reduction treatment fluid) successively by sensitization, activation, reduction operation, make original fabrics obtain metallic reducing is had the surface of catalytic action and good combination power, each operation can be carried out with soaking, brush, spray three kinds of modes;
The sensitization treatment fluid is comprised of the hydrochloric acid solution that contains reducing metal ion and stabilizing agent BHV. Reducing metal ion commonly used is Sn2+Ion, concentration are 0.1～80g/l, and stabilizing agent BHV is arylsulphonate and the 2～10g/l Low Valent Vanadium ion (V of 0.2～2Kg/l by concentration3+、V
2+) formulated. Use concentration is 5～100mg/l. Hydrochloric acid (proportion 1.19) concentration is 5～140ml/l. Solution is formulated by distilled water or deionized water;
Activation process liquid is by the Pd of 0.1～2.5g/l2+Ion and HL hydrochloric acid reagent, formulated with distilled water or deionized water. The common consumption of HL hydrochloric acid reagent is 2～50ml/l, and the alkyd that 0.1～0.5g is contained 3～6 carbon atoms is dissolved in the 1000ml50% hydrochloric acid formulated;
After sensitization and active the processing, all use clear water or deionized water is fully cleaned;
The reduction treatment fluid can with also stoste used in traditional nonmetallic materials pre-electroplating treatment, be generally 10～30g/l ortho phosphorous acid sodium water solution. To the original fabrics of some material, such as glass fabric, for improving its hydrophily, can before processing, sensitization carry out first hydrophilic treated, and hydrophilic processing liquid commonly used is for containing 6～10g/lF-The aqueous solution of ion.
5, preparation method according to claim 2, it is characterized in that: its metalized is: the matrix material (original fabrics) after electro-chemical activity is processed immerses in the chemical plating metal solution (such as two complexing agent copper plating baths), plating bath soaks into whole fabric, thereby having on the fabric fibre surface of catalytic activity, under the reducing agent effect, the conjugation that the reduction of metal ion negative electrode and reducing agent oxidation occurs and separate out hydrogen is reacted. The metal film that reduce deposition goes out has catalytic property matter, so this conjugation reaction is a kind of from catalytic reaction, make metal continue to carry out at the reduction on fabric and fabric fibre surface and Energy Deposition and generate continuously, certain thickness metal coating is arranged, make metallization of fabric. This operation can adopt soaks, brushes, sprays three kinds of modes and carry out;
Metalized mainly adopts copper or copper/nickel chemistry coating to make metallization of fabric;
Copper metallization is processed and is adopted a kind of pair of complexing agent chemical bronze plating liquid, and it consists of: 2～30g/l Cu2+Ion, 5～140g/l tartaric acid salt, 10～100g/l edetate, 5～140g/l NaOH, 5～140g/l formaldehyde (36%), 10～50mg/lHG reagent, 20～200mg/lSCL reagent. Wherein HG reagent is the additive that improves quality of coating, by the low molecular weight amino acid that contains 2～3 carbon atoms and formulated by 1: 10 (weight ratio) without water-ethanol. SCL reagent is stabilizing agent, is formed with 1.2: 1 (weight ratio) ratio mixed preparing by pyridine and derivative thereof and the potassium ferricyanide.
6, preparation method according to claim 2, it is characterized in that: its surfacecti proteon is processed and is: can soak in the aqueous solution that contains 1～5g/l benzotriazole or its derivative 5～10 minutes the conductive fabric that only carries out the copper metallization processing, make copper layer surface form the layer of surface complex layer, to reach the inhibition purpose.
7, conductive fabric according to claim 1 is characterized in that: this fabric is spread as the top layer spread in the polymer based composites and consist of conducing composite material, and further be prepared into various products.
8, conductive fabric according to claim 1 is characterized in that: this fabric is spread as interlayer spread in the polymer based composites and consist of conducing composite material, and further be prepared into various products.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95101961A CN1111219C (en) | 1995-02-27 | 1995-02-27 | Electric heating, shielding, anti-static multifunctional conductive fabric and its preparing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95101961A CN1111219C (en) | 1995-02-27 | 1995-02-27 | Electric heating, shielding, anti-static multifunctional conductive fabric and its preparing method |
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|---|---|
| CN1130223A true CN1130223A (en) | 1996-09-04 |
| CN1111219C CN1111219C (en) | 2003-06-11 |
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| CN95101961A Expired - Fee Related CN1111219C (en) | 1995-02-27 | 1995-02-27 | Electric heating, shielding, anti-static multifunctional conductive fabric and its preparing method |
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| US6569789B1 (en) * | 1996-08-05 | 2003-05-27 | Seiren Co., Ltd. | Conductive material and its manufacture thereof |
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