CN110106474A - Conductive fabric, preparation method and application - Google Patents
Conductive fabric, preparation method and application Download PDFInfo
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- CN110106474A CN110106474A CN201910498046.3A CN201910498046A CN110106474A CN 110106474 A CN110106474 A CN 110106474A CN 201910498046 A CN201910498046 A CN 201910498046A CN 110106474 A CN110106474 A CN 110106474A
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- conductive fabric
- fiber
- base material
- fiber base
- sputtering
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/14—Metallic material, boron or silicon
- C23C14/20—Metallic material, boron or silicon on organic substrates
- C23C14/205—Metallic material, boron or silicon on organic substrates by cathodic sputtering
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/34—Sputtering
- C23C14/35—Sputtering by application of a magnetic field, e.g. magnetron sputtering
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/56—Apparatus specially adapted for continuous coating; Arrangements for maintaining the vacuum, e.g. vacuum locks
- C23C14/562—Apparatus specially adapted for continuous coating; Arrangements for maintaining the vacuum, e.g. vacuum locks for coating elongated substrates
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M10/00—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements
- D06M10/04—Physical treatment combined with treatment with chemical compounds or elements
- D06M10/06—Inorganic compounds or elements
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/83—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with metals; with metal-generating compounds, e.g. metal carbonyls; Reduction of metal compounds on textiles
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/32—Polyesters
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/34—Polyamides
- D06M2101/36—Aromatic polyamides
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/40—Fibres of carbon
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Textile Engineering (AREA)
- Inorganic Chemistry (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
Abstract
The present invention relates to lightweight, high-strength conductive fabric, preparation method and application, the conductive fabric includes fiber base material and the metal layer for being plated on fibrous substrate surface；The fiber base material is selected from aramid fiber, polyarylate fiber, carbon fiber；The square resistance of the conductive fabric is 0.02~0.50 Ω/sq, and shield effectiveness is 40~80dB.The surface density of the conductive fabric is small, and tensile strength is high, and square resistance can have lightweight, the advantage that high-strength, conductivity is high, electromagnetic shielding performance is excellent up to 80dB down to 0.02 Ω/sq, shield effectiveness.The invention further relates to the preparation method of above-mentioned conductive fabric and applications.The method is simple and efficient, is pollution-free, the uniform free from admixture of coating, and adhesive force of metal layer is good, it is easy to accomplish produces in enormous quantities.
Description
Technical field
The present invention relates to conductive fabric field, in particular to lightweight, high-strength conductive fabric, preparation method and
Using.
Background technique
Conductive fabric has a wide range of applications in flexible ELECTROMAGNETIC REFLECTION and electromagnetic shielding material field, and existing compliant conductive is knitted
Object mostly uses nylon fibre or polyester fiber limiting its application to a certain degree as substrate, mechanical strength and modulus.
Metallic silver, aluminium, copper are the lower metals of relatively soft in nature and resistivity.Metal deposition at present especially plates
Silver fiber and the production method of fabric mostly use the methods of chemical plating, plating, vacuum evaporation and magnetron sputtering.Chemical plating and electricity
Plating carry out in the solution, waste liquor contamination environment can be generated, and the stability of chemical silvering solution is very poor, it is silver-plated each time will
It is ready-to-use, it cannot reuse, therefore higher cost.The binding force of cladding material that Vacuum Deposition generates is poor, is unfavorable for being repeated several times
It uses.Magnetron sputtering is a kind of efficient coat of metal technique, and coating and substrate binding strength are high, and coating is evenly distributed cause
It is close, there are the advantages such as device performance stabilization, convenient operation and control, non-environmental-pollution.
The prior art is less to the magnetron sputtering plating metal research of high-intensity fiber and fabric and related patents, main to study
In terms of the chemical plating for concentrating on aramid fiber, and mass production ability is not formed still.Side based on magnetron sputtering plating
Method, exploitation lightweight, high-strength conductive fabric extremely have realistic meaning.
In view of this, the present invention is specifically proposed.
Summary of the invention
The first object of the present invention is to provide a kind of lightweight, high-strength conductive fabric, and the conductive fabric is with high-strength fibre
Dimension fabric is substrate, and surface metallization layer has the characteristics such as conductivity is high, electromagnetic shielding performance is excellent.
The second object of the present invention is to provide the method for preparing above-mentioned conductive fabric, and the method is simple and efficient, without dirt
Dye, the uniform free from admixture of gained coating, adhesive force are good.
The third object of the present invention is to provide above-mentioned conductive fabric in flexible ELECTROMAGNETIC REFLECTION material, electromagnetic shielding material side
The application in face.
In order to realize above-mentioned purpose of the invention, the following technical scheme is adopted:
Conductive fabric comprising fiber base material and the metal layer for being plated on fibrous substrate surface；The fiber base material is selected from
Aramid fiber, polyarylate fiber, carbon fiber；The square resistance of the conductive fabric is 0.02~0.50 Ω/sq, and shield effectiveness is
40~80dB.
Optionally, the square resistance of the conductive fabric is 0.02~0.40 Ω/sq, and shield effectiveness is 50~80dB.
Optionally, the square resistance of the conductive fabric is 0.02~0.20 Ω/sq, and shield effectiveness is 70~80dB.
In the present invention, aramid fiber strength modulus is high, has fabulous dimensional stability, heat-resisting, fatigue durability and corrosion resistant
Corrosion etc.；Polyarylate fiber intensity is higher than aramid fiber, and creep resistant, resist bending, wearability are excellent；Carbon fiber high-strength light,
With excellent mechanical property and electric conductivity.Aramid fiber, polyarylate fiber and carbon fiber have both high-intensitive and certain flexibility,
One layer of metal, such as fine silver are deposited on the surface of its fabric, obtained conductive fabric had not only had the characteristic of Soft, foldable but also had
The highly conductive property of silver.
Optionally, it is 50D~400D, through density and filling density that the aramid fiber and polyarylate fiber substrate, which include line density,
Degree is the long filament of 8~40/cm.
Optionally, the carbon fiber base material include 1~12K, through density and weft density be 5~10/cm tow, greatly
Tow carbon fiber, which can carry out broadening processing, keeps fabric frivolous, flat.
In the present invention, the institutional framework of fiber base material, such as the value of line density, thread count, to the object of conductive fabric
Reason, mechanical performance (such as intensity, weight, fluffy degree, surface adhesion), processing characteristics and chemical-resistant characteristic etc., have
It influences.Usually, pck count is bigger, and hole is smaller, and thickness of coating is bigger, and the conductive fabric electrical property of acquisition is more
It is excellent, but this will lead to the increase of fabric surface density, and fabric feeling is hardened, it is therefore desirable to the institutional framework and metal deposition of fabric
Technique optimizes.
Optionally, the filament linear density of the aramid fiber and polyarylate fiber substrate can independently selected from 50D,
100D、150D、200D、250D、400D。
Optionally, the long filament thread count of the aramid fiber and polyarylate fiber substrate can independently selected from 8/
Cm, 9/cm, 10/cm, 11/cm, 12/cm, 13/cm, 14/cm, 15/cm, 16/cm, 17/cm, 18
Root/cm, 19/cm, 20/cm, 25/cm, 30/cm, 35/cm, 40/cm etc..
Optionally, the tow of the carbon fiber base material can be independently selected from 1K, 3K, 6K, 12K.
Optionally, the pck count of the carbon fiber base material can independently selected from 5/cm, 6/cm, 7/
Cm, 8/cm, 9/cm, 10/cm.
Optionally, large-tow carbon fiber, which can carry out broadening processing, keeps fabric frivolous, flat.
Optionally, the surface density of the conductive fabric is less than 150g/m2, tensile strength is greater than 300MPa.
Optionally, the fiber base material can be selected from plain cloth, twills, satin fabric.
Optionally, the fiber base material is selected from plain cloth.
Optionally, the metal of the metal layer is selected from silver, aluminium, copper.
Optionally, the metal of the metal layer is selected from silver.
Optionally, the metal layer is 15~50g/m in the plating amount of the fibrous substrate surface2。
Optionally, the metal layer the plating amount of the fibrous substrate surface can be independently selected from 15g/m2、18g/
m2、20g/m2、22g/m2、25g/m2、28g/m2、30g/m2、32g/m2、35g/m2、38g/m2、40g/m2、42g/m2、45g/m2、
48g/m2、50g/m2。
Optionally, the metal layer is 20~40g/m in the plating amount of the fibrous substrate surface2。
In the present invention, the selection of suitable metal layer plating amount will have a direct impact on electric conductivity and the shielding of conductive fabric
Efficiency.As metal deposition amount increases, the metal layer of fabric surface is finer and close, is more advantageous to form complete conductive layer, make
Electric conductivity and shielding properties enhancing.But metal deposition amount is easy to cause when excessive, and metal layer is uneven, binding force of cladding material decline.
The method for preparing any of the above-described conductive fabric, comprising: using magnetron sputtering in fibrous substrate surface metal lining, obtain
Obtain conductive fabric；The magnetron sputtering uses metal targets, using argon gas as bombarding gas, carries out vacuum to the fiber base material and splashes
It penetrates.
As an implementation, the method for preparing conductive fabric includes: to be plated using magnetron sputtering in fibrous substrate surface
Silver obtains conductive fabric；The magnetron sputtering is using silver-colored target, using argon gas as bombarding gas, carries out to the fiber base material true
Sky sputtering.
Compared to chemical plating, using magnetron sputtering plating sputtering raste is high, base material temperature is low, device performance is stable, operation
Easy to control, non-environmental-pollution, and it is completely absent that the bath stability during chemical plating is poor, the ring in coating process
The problem of border pollution and the resistance to taking of fabric and water-wash resistance difference, it is often more important that, the metal layer that magnetron sputtering technique obtains point
The more uniform densification of cloth, coating and substrate binding strength are higher.Due to aramid fiber, polyarylate fiber and carbon fiber base material surface
Activity is poor, and the binding force of cladding material obtained using conventional method is poor.The present invention is used by fabric oil removal treatment and surface
Reason can increase fiber surface roughness and activity, then metal can be made uniformly and intimately to be integrated to fibre by magnetron sputtering technique
In dimension, the stronger high-strength conducting fabric of binding force is obtained.
Optionally, the metal targets use 99.9%~99.99% high-purity metal target.
As an implementation, the silver-colored target uses 99.9%~99.99% high purity silver target.
Optionally, the sputtering current of the magnetron sputtering is 2.0~4.5A, and sputtering voltage is 300~700V, sputtering time
For 3~15min.
Optionally, the sputtering current can be independently selected from 2.0A, 2.4A, 2.5A, 3.0A, 3.5A, 4.0A, 4.5A.
Optionally, the sputtering voltage can independently selected from 300V, 350V, 400V, 450V, 500V, 560V, 580V,
600V、650V、700V。
Optionally, the sputtering time can independently selected from 3min, 4min, 5min, 6min, 7min, 8min, 9min,
10min、12min、14min、15min。
Optionally, the flow of the argon gas is 10~20sccm, and gas pressure is 0.3~0.4Pa.
Optionally, the flow of the argon gas can independently selected from 10sccm, 12sccm, 15sccm, 18sccm,
20sccm。
Optionally, the vacuum degree of the vacuum sputtering is 1 × 10-3~5 × 10-3Pa。
Optionally, the vacuum degree of the vacuum sputtering is 2 × 10-3~4 × 10-3Pa。
Optionally, in magnetron sputtering process, the winding speed of the fiber base material is 1~20r/min.
Optionally, the winding speed of the fiber base material can be independently selected from 1r/min, 3r/min, 5r/min, 8r/
min、10r/min、12r/min、15r/min、18r/min、20r/min。
Optionally, the method also includes: before the magnetron sputtering, oil removal treatment and table are carried out to the fiber base material
Surface treatment.
In the present invention, the surface attachment of fiber base material can be improved by carrying out oil removal treatment and surface treatment to fiber base material
The surface propertys such as power, surface-active, surface roughness are conducive to enhance the attachment between the coat of metal and fiber base material, significantly
Enhance binding force of cladding material.
Optionally, the oil removal treatment include: in the presence of handling medium, by the fiber base material carry out ultrasound and/or
It impregnates, washing, drying.
As an implementation, the washing includes: multiple wash with distilled water, until the residual that has no irritating odor.
Optionally, the processing medium is selected from acetone, methanol, ethyl alcohol, butanone, ether, toluene, dimethylbenzene, tetrahydrofuran
At least one of equal solvent.
Optionally, the time of the ultrasound is 10~60min；The time of the immersion is 12~48h；The temperature of the drying
Degree is 50~100 DEG C.
Optionally, the time of the ultrasound is 10~30min；The time of the immersion is 24~48h；The temperature of the drying
Degree is 70~100 DEG C.
As an implementation, aramid fiber, polyarylate fiber oil removal treatment be ultrasonic treatment.
As an implementation, the oil removal treatment of carbon fiber is immersion treatment.
Optionally, the surface treatment is plasma treatment and/or surface oxidation treatment.
As an implementation, the surface treatment of aramid fiber, polyarylate fiber is plasma treatment；The plasma
Processing includes: that fiber base material to be processed is placed in low-temperature plasma modified equipment, is evacuated to 5~10Pa, is filled with oxygen
For gas to 10~50Pa, processing power is 10~100W, and the processing time is 1~10min.
As an implementation, the surface treatment of carbon fiber is surface oxidation treatment；The surface oxidation treatment includes:
Under surface oxidation temperature, air atmosphere, continuous surface oxidation processes are carried out to carbon fiber using oxidation furnace.
Optionally, the temperature of the surface oxidation is 400~600 DEG C.
Optionally, the temperature of the surface oxidation is 500~600 DEG C.
Compared with prior art, the invention has the benefit that
(1) conductive fabric provided by the invention, surface density are less than 150g/m2, tensile strength is greater than 300MPa, square resistance
Up to 0.02 Ω/sq, shield effectiveness has lightweight, the advantage that high-strength, conductivity is high, electromagnetic shielding performance is excellent up to 80dB.
(2) preparation method of conductive fabric provided by the invention is simple and efficient, using magnetron sputtering plating metal without dirt
Dye, the uniform free from admixture of coating, adhesive force of metal layer are good, it is easy to accomplish produce in enormous quantities.
(3) conductive fabric provided by the invention can be widely applied to paraballon, electromagnetic shielding tent, inflate false mesh
The flexibility ELECTROMAGNETIC REFLECTION such as mark, aerospace shielded cable and electromagnetic shielding material field.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the electron micrograph of the silver-plated conductive fabric of the plain weave of aramid fiber in one embodiment of the present invention；
Fig. 2 is the shield effectiveness curve of the silver-plated conductive fabric of aramid fiber in one embodiment of the present invention；
Fig. 3 is the shield effectiveness curve of the silver-plated conductive fabric of polyarylate fiber in one embodiment of the present invention；
Fig. 4 is the shield effectiveness curve of the silver-plated conductive fabric of carbon fiber in one embodiment of the present invention.
Specific embodiment
Embodiment of the present invention is described in detail below in conjunction with embodiment, but those skilled in the art will
Understand, the following example is merely to illustrate the present invention, and is not construed as limiting the scope of the invention.It is not specified in embodiment specific
Condition person carries out according to conventional conditions or manufacturer's recommended conditions.Reagents or instruments used without specified manufacturer is
It can be with conventional products that are commercially available.
In the present invention, the surface topography of conductive fabric uses the electron microscope of 650 model of U.S. FEI QUANTA FEG
Observation.
In the present invention, fiber linear density determines that thread count is determined using fabric count glass measurement using weighing method of taking out stitches.
In the present invention, the surface density of conductive fabric is measured: using ten thousand special disk sampler samplings, using ten thousand special electronic balances
Measure quality.
In the present invention, the tensile strength of conductive fabric is measured using the universal material mechanics machine of WDW-5 model.
In the present invention, the coat of metal fibrous substrate surface plating amount according to standard EPA-6010D-2018, use inductance
Coupled plasma optical emission spectrometer measures tenor.
In the present invention, the shield effectiveness of conductive fabric is measured according to GJB 6190-2008 electromagnetic shielding material shield effectiveness
Method measurement.
In the present invention, the square resistance of conductive fabric uses the double electrical measurements of the RTS-9 type of four probe Science and Technology Ltd. of Guangzhou
Four-point probe measurement.
Below using metallic silver as typical metal, magnetron sputtering plating is carried out to fiber base material.The plating process of metallic aluminium, copper
It is roughly the same with metallic silver, the difference is that, according to the specific physical characteristic of metallic aluminium, copper, during specific adjustment plating
Each parameter setting.
The preparation of 1 aramid fiber conductive fabric of embodiment
Fibrous matrix: aramid fiber, 200D long filament, thread count are 17/cm；
Oil removal treatment: aramid fiber is placed in ultrasonic wave 15min in acetone and carries out oil removing, taking-up distilled water is clear after oil removing
It washes repeatedly, until having no irritating odor, is placed in drying for standby in 70 DEG C of baking ovens；
Surface treatment: fiber to be processed is placed in low-temperature plasma modified equipment, 6Pa is evacuated to, is filled with oxygen
To 30Pa, processing power 30W, time 10min is handled.
Magnetron sputtering is silver-plated: 99.99% high purity silver target used, the aramid fiber after surface treatment is placed in specimen holder,
Specimen holder is rotated with the winding speed of 10r/min, and the vacuum degree control of vacuum sputtering room is 4 × 10-3Pa, it is silver-plated in magnetron sputtering
In deposition process, high-purity argon gas is passed through as bombarding gas, argon flow 20sccm, pressure is maintained at 3.3 × 10-1Pa splashes
Radio stream 2.4A, sputtering voltage 580V, sputtering time 8min.Obtain aramid fiber conductive fabric.
The preparation of 2 polyarylate fiber conductive fabric of embodiment
Fibrous matrix: polyarylate fiber, 200D long filament, thread count are 18/cm；
Oil removal treatment: polyarylate fiber is placed in ultrasonic wave 15min in acetone and carries out oil removing, is taken out after oil removing and uses distilled water
Cleaning repeatedly, until having no irritating odor, is placed in drying for standby in 70 DEG C of baking ovens；
Surface treatment: fiber to be processed is placed in low-temperature plasma modified equipment, 6Pa is evacuated to, is filled with oxygen
To 30Pa, processing power 50W, time 1min.
Magnetron sputtering is silver-plated: using 99.99% high purity silver target, the polyarylate fiber after surface treatment is placed in sample
Frame, specimen holder are rotated with the winding speed of 10r/min, and the vacuum degree control of vacuum sputtering room is 4 × 10-3Pa, in magnetron sputtering
In silver-plated deposition process, high-purity argon gas is passed through as bombarding gas, argon flow 20sccm, pressure is maintained at 3.3 × 10- 1Pa, sputtering current 2.4A, sputtering voltage 580V, sputtering time 8min.Obtain polyarylate fiber conductive fabric.
The preparation of 3 electric conduction of carbon fiber fabric of embodiment
Fibrous matrix: carbon fiber, 1K long filament, thread count are 9/cm；
Oil removal treatment: carbon fiber being placed in 50 DEG C of acetone and impregnates oil removing for 24 hours, is taken out after oil removing wash with distilled water repeatedly
Until having no irritating odor, it is placed in drying for standby in 70 DEG C of baking ovens；
Surface treatment: under air atmosphere, continuous surface oxygen is carried out to the carbon fiber after oil removing using 600 DEG C of high temperature oxidation furnaces
Change processing, improves surface roughness and activity.
Magnetron sputtering is silver-plated: using 99.99% high purity silver target, the carbon fiber after surface treatment is placed in specimen holder, sample
Product frame is rotated with the winding speed of 5r/min, and the vacuum degree control of vacuum sputtering room is 4 × 10-3Pa is silver-plated heavy in magnetron sputtering
During product, high-purity argon gas is passed through as bombarding gas, argon flow 20sccm, pressure is maintained at 3.3 × 10-1Pa, sputtering
Electric current 2.5A, sputtering voltage 560V, sputtering time 10min.Obtain electric conduction of carbon fiber fabric.
The performance characterization of experimental example conductive fabric
To the surface topography of the conductive fabric prepared in Examples 1 to 3, surface density, tensile strength, square resistance, shielding
Efficiency is characterized.
As shown in Figure 1, by the electron micrograph of aramid fiber conductive fabric it is found that aramid fiber conductive fabric surface
Silver coating is evenly distributed, plated layer compact, and the attachment between coating and fiber base material is good, has reached good plating effect.
The surface density of conductive fabric, tensile strength, square resistance, shield effectiveness characterization result are listed in Table 1 below, wherein three kinds
The shield effectiveness curve difference of conductive fabric is as shown in Figure 2, Figure 3 and Figure 4.
The performance indicator of 1 conductive fabric of table
| Conductive fabric | Surface density (g/m2) | Tensile strength (MPa) | Square resistance (Ω/sq) | Shield effectiveness (dB) |
| Aramid fiber conductive fabric | 100 | 400 | 0.17 | 50 |
| Polyarylate fiber conductive fabric | 105 | 450 | 0.15 | 70 |
| Electric conduction of carbon fiber fabric | 145 | 450 | 0.07 | 80 |
By result in Fig. 2, Fig. 3 and Fig. 4 and in table 1 it is found that the surface density of conductive fabric is less than 150g/m2, stretch strong
Degree is in 400MPa or more, conductive fabric high-strength light；The square resistance of conductive fabric is extremely low, and shield effectiveness shows up to 80dB
Electric conductivity and shielding properties are excellent, can be widely applied to the fields such as flexible ELECTROMAGNETIC REFLECTION and electromagnetic shielding material.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, but those skilled in the art should understand that: its
It is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features
It is equivalently replaced；And these are modified or replaceed, various embodiments of the present invention skill that it does not separate the essence of the corresponding technical solution
The range of art scheme.
Claims (10)
1. conductive fabric, which is characterized in that including fiber base material and the metal layer for being plated on fibrous substrate surface；
The fiber base material is selected from aramid fiber, polyarylate fiber, carbon fiber；
The square resistance of the conductive fabric is 0.02~0.50 Ω/sq, and shield effectiveness is 40~80dB.
2. conductive fabric according to claim 1, which is characterized in that the aramid fiber and polyarylate fiber substrate include
Line density is 50D~400D, is the long filament of 8~40/cm through density and weft density；
The carbon fiber base material include 1~12K, through density and weft density be 5~10/cm tow.
3. conductive fabric according to claim 1, which is characterized in that the surface density of the conductive fabric is less than 150g/m2,
Tensile strength is greater than 300MPa；
Preferably, the conductive fabric is selected from plain cloth, twills, satin fabric.
4. conductive fabric according to claim 1, which is characterized in that the metal of the metal layer is selected from silver, aluminium, copper；
The metal layer is 15~50g/m in the plating amount of the fibrous substrate surface2。
5. the method for preparing conductive fabric described in any one of Claims 1-4, which is characterized in that existed using magnetron sputtering
Fibrous substrate surface metal lining obtains conductive fabric；
The magnetron sputtering uses metal targets, using argon gas as bombarding gas, carries out vacuum sputtering to the fiber base material.
6. according to the method described in claim 5, it is characterized in that, the sputtering current of the magnetron sputtering be 2.0~4.5A, splash
Radio pressure is 300~700V, and sputtering time is 3~15min.
7. method according to claim 5 or 6, which is characterized in that the flow of the argon gas is 10~20sccm, gas pressure
Power is 0.3~0.4Pa.
8. method according to any one of claims 5 to 7, which is characterized in that the vacuum degree of the vacuum sputtering be 1 ×
10-3~5 × 10-3Pa；In magnetron sputtering process, the winding speed of the fiber base material is 1~20r/min.
9. according to the method described in claim 5, it is characterized in that, the method also includes: before the magnetron sputtering, to institute
It states fiber base material and carries out oil removal treatment and surface treatment；
Preferably, the oil removal treatment includes: and the fiber base material is carried out ultrasound and/or is impregnated in the presence of handling medium,
Washing, drying；
It is further preferred that the processing medium is selected from acetone, butanone, methanol, ethyl alcohol, ether, toluene, dimethylbenzene, tetrahydro furan
At least one of mutter；
It is further preferred that the time of the ultrasound is 10~60min；The time of the immersion is 12~48h；The drying
Temperature is 50~100 DEG C；
Preferably, the surface treatment is plasma treatment and/or surface oxidation treatment；
It is further preferred that the plasma treatment includes: that fiber base material to be processed is placed in low-temperature plasma modified set
In standby, it is evacuated to 5~10Pa, is filled with oxygen to 10~50Pa, processing power is 10~100W, the processing time is 1~
10min；
It is further preferred that the temperature of the surface oxidation is 400~600 DEG C.
10. conductive fabric described in any one of Claims 1-4, the method according to any one of claim 5 to 9
Application of the conductive fabric being prepared in terms of flexible ELECTROMAGNETIC REFLECTION material, electromagnetic shielding material.
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