CN108118528B - Flexible conductive textile - Google Patents

Flexible conductive textile Download PDF

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Publication number
CN108118528B
CN108118528B CN201810051087.3A CN201810051087A CN108118528B CN 108118528 B CN108118528 B CN 108118528B CN 201810051087 A CN201810051087 A CN 201810051087A CN 108118528 B CN108118528 B CN 108118528B
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base cloth
temperature
mol
treatment
setting
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CN108118528A (en
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张瑞萍
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Nantong Xiang Ze Textile Co.,Ltd.
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Nantong University
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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
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/48—Coating with alloys
    • C23C18/50—Coating with alloys with alloys based on iron, cobalt or nickel
    • 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
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/18—Pretreatment of the material to be coated
    • C23C18/20—Pretreatment of the material to be coated of organic surfaces, e.g. resins
    • C23C18/22—Roughening, e.g. by etching
    • 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
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/18—Pretreatment of the material to be coated
    • C23C18/20—Pretreatment of the material to be coated of organic surfaces, e.g. resins
    • C23C18/28—Sensitising or activating
    • 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
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/48—Coating with alloys

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  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Chemically Coating (AREA)

Abstract

The invention discloses a flexible conductive textile, which has the surface resistance ASTM F390 of which the ratio of omega/sq is less than or equal to: less than or equal to 0.015 omega/sq; shielding effectiveness ASTM-D4935-99: 10MHz-20GHz, above 88 dB; metal layer bonding force test AATCC-TM 8-2001: four to five stages. The invention utilizes ultraviolet radiation dry oxidation to replace the traditional caustic soda wet roughening process, constructs a fiber hydrophilization rough surface, is beneficial to the adsorption of a subsequent activating agent to the fiber, increases the binding force of a metal coating and the fiber, belongs to dry processing, effectively avoids chemical pollution, and reduces two working procedures of dehydration and drying of the traditional roughening.

Description

Flexible conductive textile
The application is application number: 201410639777.2 application date: 2014-11-13, entitled "a preparation method of copper-nickel conductive fabric".
Technical Field
The invention relates to a preparation method of a copper-nickel conductive fabric.
Background
With the rapid development and increasing popularity of telecommunications, computers, microwave ovens, etc., the energy density of electromagnetic radiation in the environment is increasing year by year. The electromagnetic environmental pollution becomes the fourth pollution following the atmosphere, water quality and noise, and more attention is paid to people. The chemically plated metal fabric is a good electromagnetic shielding material, and has the conductive and electromagnetic shielding properties of metal and fabric
The textile has the characteristics of softness and air permeability, can be widely applied to the fields of national defense, aviation, aerospace, electronics, electric power, communication, medical treatment and the like, and is an industrial textile with good economic and social benefits. The copper-nickel alloy chemical plating fabric has good conductivity and low price compared with silver, can ensure the conductivity and the electromagnetic shielding performance of the fabric, can improve the oxidation and corrosion resistance of the fabric, and prolongs the service life of the fabric, so the copper-nickel alloy chemical plating fabric has good prospect as a plating layer of the electromagnetic shielding fabric in a high-frequency area.
In the preparation research of the metal conductive fabric at present, in order to improve the bonding force between a metal coating and fibers, the roughness of the fiber surface needs to be increased, and the problems of chemical pollution exist by adopting methods of alkali etching and oxidant etching. In the preparation, metal ions such as Sn2+, Pd2+ and the like are used for activation and sensitization with palladium, which also causes serious environmental pollution and is expensive. In order to reduce the use of noble metals such as palladium in the activation link of the chemical plating process, scholars at home and abroad use the strong reducibility of sodium borohydride (NaBH 4)/potassium borohydride (KBH4), directly use NaBH4/KBH4 adsorbed by fabrics to reduce nickel sulfate, and make the reduced nickel adsorbed on the fabrics to become the activation catalytic center of the chemical plating so as to initiate the chemical plating, but the currently improved sodium borohydride (NaBH 4)/potassium borohydride (KBH4) has no palladium activation, and because sodium borohydride (potassium) is an explosive chemical, the generation process has potential safety hazard.
Disclosure of Invention
The invention aims to provide a preparation method of a copper-nickel conductive fabric which is environment-friendly, safe, convenient and good in conductivity.
The technical solution of the invention is as follows:
a preparation method of a copper-nickel conductive fabric is characterized by comprising the following steps: sequentially comprises the following steps:
(1) base cloth surface oil removing treatment
Firstly, setting the temperature of a water bath kettle to be 50-70 ℃, weighing washing powder according to the concentration of 1-3g/L, dissolving, putting into the water bath kettle, heating and maintaining the temperature at 50-70 ℃, then putting the polyester fabric into the water bath kettle, and washing for 1 hour; then taking out and cleaning the materials by using tap water, and putting the materials into an oven to dry at 105 ℃;
(2) ultraviolet radiation coarsening method for surface of base cloth
An ultraviolet radiation roughening treatment process: wavelength of 180-400nm, power of 1-2KW, radiation time of 10-30 s, and distance between the lamp tube and the treated fabric of 30-40 mm.
(3) Base cloth surface palladium-free activation treatment
At room temperature, immersing the cloth sample into activating liquid for ultrasonic treatment for 10-20min, with power of 50-100W, frequency of 50-70kHz, temperature of 40-50 ℃, removing liquid, ventilating, then feeding into a setting machine, setting the temperature of the heat setting machine to 190 ℃ and 210 ℃, and setting the time to 30-50 min;
the formula of the activating solution is as follows:
Ni(Ac)2•4H2O(g)：NaH2PO4•H2o (g): water (mL) = 1: 1: 30, of a nitrogen-containing gas;
(4) chemical plating of copper-nickel alloy on surface
Carrying out chemical plating on the base cloth subjected to high-temperature activation treatment in a copper-nickel alloy plating solution; the plating solution formula is as follows:
copper sulfate pentahydrate (CuSO)4·5H2O）0.04~0.12 mol/L
Nickel sulfate hexahydrate (NiSO)4• 6H2O）0.01~0.08 mol/L
Sodium hypophosphite (NaH)2PO2• H2O）0.20~0.80mol/L
Sodium citrate (C)6H5NaO7•2H2O ）0.08-0.16 mol/L
Boric acid (H)3BO3）0.10~0.50mol/L
Polyethylene glycol: 80-100 mg/L
Maltose 0.05-0.08 mol/L
0.03-0.05 mmol/L of thiourea
The balance of water;
pH：8.0~9.0
the treatment time is 20-90 min
The reaction temperature is controlled to be 70-90 ℃.
The fabric can be replaced by polyester fiber, polyester yarn, polyester fabric and polyester non-woven fabric.
The washing powder is an olfactive washing powder.
The invention utilizes ultraviolet radiation dry oxidation to replace the traditional caustic soda wet roughening process, constructs a fiber hydrophilization rough surface, is beneficial to the adsorption of a subsequent activating agent to the fiber, increases the binding force of a metal coating and the fiber, belongs to dry processing, effectively avoids chemical pollution, and reduces two working procedures of dehydration and drying of the traditional roughening.
According to the invention, the fabric is subjected to ultrasonic activation by decomposing nickel acetate at high temperature, the activating agent nickel acetate is fully utilized and converted into active sites on the inert surface of the polyester fiber, the deposition of nickel and copper ions can be induced in the subsequent chemical plating process, and the pollution problem, the cost problem and the safety problem caused by the activation of metal ions such as Sn2+, Pd2+ and the like and the NaBH4/KBH4 activation method can be effectively avoided.
The invention adopts ultrasonic activation to reduce the dosage of an activating agent, shorten the activation time, improve the mass transfer coefficient, improve the arrangement of an active component nickel layer and refine the active component nickel layer, thereby improving the deposition rate of a subsequent plating layer and enhancing the binding force of the plating layer and a substrate.
The activation process of the high-temperature thermal decomposition of the nickel acetate can be arranged in the conventional heat setting treatment process of the polyester fabric and can be carried out together without adding additional equipment, and the heat setting machine is used as an activation machine, so that the process is convenient to be connected with normal production.
The product produced by the invention has the following effects:
1. surface resistance (ASTM F390, ≦ Ω/sq): less than or equal to 0.015 omega/sq.
2. Shielding effectiveness (ASTM-D4935-99): 10MHz-20GHz, above 88 dB;
3. metal layer bond test (AATCC-TM 8-2001): four to five stages;
4. the copper-nickel polyester fabric has a uniform and bright coating and good flexibility.
The present invention will be further described with reference to the following examples.
Detailed Description
A preparation method of a copper-nickel conductive polyester fabric sequentially comprises the following steps:
(1) base cloth surface oil removing treatment
Firstly, setting the temperature of a water bath kettle to be 50-70 ℃ (example 50 ℃, 60 ℃ and 70 ℃), weighing the wonderful detergent powder according to the concentration of 1-3g/L (example 1 g/L, 2g/L and 3 g/L), dissolving, putting into the water bath kettle, heating and maintaining at 50-70 ℃ (example 50 ℃, 60 ℃ and 70 ℃), then putting the polyester fabric into the water bath kettle, and washing for 1 h; then taking out and cleaning the materials by using tap water, and putting the materials into an oven to dry at 105 ℃;
(2) ultraviolet radiation coarsening method for surface of base cloth
An ultraviolet radiation roughening treatment process: wavelength of 180-400nm (e.g. 180 nm, 300nm, 400 nm), power of 1-2KW, radiation time of 10-30 s, and distance between the lamp tube and the treated fabric of 30-40mm (e.g. 30mm, 35mm, 40 mm).
(3) Base cloth surface palladium-free activation treatment
Soaking the cloth sample in activating solution at room temperature for ultrasonic treatment for 10-20min (example 10 min, 15 min, 20min), with power of 50-100W, frequency of 50-70kHz, temperature of 40-50 deg.C, removing liquid, ventilating, feeding into setting machine, setting the temperature of the setting machine at 190-210 deg.C, and setting the time at 30-50min (example 30 min, 40min, 50 min);
the formula of the activating solution is as follows:
Ni(Ac)2•4H2O(g)：NaH2PO4•H2o (g): water (mL) = 1: 1: 30, of a nitrogen-containing gas;
(4) composition and technological condition of chemical copper-nickel alloy plating liquid on surface
Carrying out chemical plating on the base cloth subjected to high-temperature activation treatment in a copper-nickel alloy plating solution; the plating solution formula is as follows:
copper sulfate pentahydrate (CuSO)4·5H2O）0.04~0.12 mol/L
Nickel sulfate hexahydrate (NiSO)4• 6H2O）0.01~0.08 mol/L
Sodium hypophosphite (NaH)2PO2• H2O）0.20~0.80mol/L
Sodium citrate (C)6H5NaO7•2H2O ）0.08-0.16 mol/L
Boric acid (H)3BO3）0.10~0.50mol/L
Polyethylene glycol: 80-100 mg/L
Maltose 0.05-0.08 mol/L
0.03-0.05 mmol/L of thiourea
The balance of water;
pH：8.0~9.0
the treatment time is 20-90 min
Controlling the reaction temperature to be 70-90 ℃;
the fabric can be replaced by polyester fiber, polyester yarn, polyester fabric and polyester non-woven fabric.

Claims (2)

1. A flexible conductive textile characterized by: surface resistance ASTM F390, ≦ Ω/sq: less than or equal to 0.015 omega/sq; shielding effectiveness ASTM-D4935-99: 10MHz-20GHz, above 88 dB; metal layer bonding force test AATCC-TM 8-2001: four to five stages; prepared by the following method:
(1) base cloth surface oil removing treatment
Firstly, setting the temperature of a water bath kettle to be 50-70 ℃, weighing and dissolving washing powder according to the concentration of 2g/L, putting the washing powder into the water bath kettle, heating and maintaining the temperature at 50-70 ℃, then putting base cloth into the water bath kettle, and washing for 1 hour; then taking out and cleaning the materials by using tap water, and putting the materials into an oven to dry at 105 ℃; the base cloth is polyester non-woven cloth;
(2) ultraviolet radiation coarsening method for surface of base cloth
An ultraviolet radiation roughening treatment process: the wavelength is 300nm or 400nm, the power is 1-2KW, the radiation time is 10-30 s, and the distance between the lamp tube and the processing base cloth is 30-40mm;
(3) base cloth surface palladium-free activation treatment
At room temperature, immersing the base cloth into an activating solution for ultrasonic treatment for 10-20min, with the power of 50-100W, the frequency of 50-70kHz, the temperature of 40-50 ℃, removing liquid, ventilating, then feeding into a setting machine, setting the temperature of the setting machine to 190 ℃ and 210 ℃ and setting the time to 30-50 min;
the formula of the activating solution is as follows:
Ni(Ac)2•4H2O(g)：NaH2PO4•H2o (g): water (mL) = 1: 1: 30, of a nitrogen-containing gas;
(4) chemical plating of copper-nickel alloy on surface
Carrying out chemical plating on the base cloth subjected to high-temperature activation treatment in a copper-nickel alloy plating solution; the plating solution formula is as follows:
copper sulfate pentahydrate (CuSO)4·5H2O）0.04~0.12 mol/L
Nickel sulfate hexahydrate (NiSO)4• 6H2O）0.01~0.08 mol/L
Sodium hypophosphite (NaH)2PO2• H2O）0.20~0.80mol/L
Sodium citrate (C)6H5NaO7•2H2O ）0.08-0.16 mol/L
Boric acid (H)3BO3）0.10~0.50mol/L
Polyethylene glycol: 80-100 mg/L
Maltose 0.05-0.08 mol/L
0.03-0.05 mmol/L of thiourea
The balance of water;
pH：8.0~9.0
the treatment time is 20-90 min
The reaction temperature is controlled to be 70-90 ℃.
2. The flexible conductive textile of claim 1, wherein: the washing powder is an olfactive washing powder.
CN201810051087.3A 2014-11-13 2014-11-13 Flexible conductive textile Active CN108118528B (en)

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CN201410639777.2A CN104357816B (en) 2014-11-13 2014-11-13 A kind of preparation method of cupro-nickel conducting fabric
CN201810051087.3A CN108118528B (en) 2014-11-13 2014-11-13 Flexible conductive textile

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CN106567058B (en) * 2015-10-09 2019-03-19 凯基有限公司 Chromium-free environment-friendly metal-coated membrane structural system
CN109367164A (en) * 2018-09-25 2019-02-22 东莞绿邦智能科技有限公司 A kind of anti-radiation casement
CN109295442A (en) * 2018-10-15 2019-02-01 河北工业大学 The method of electrocuprol activated carbon fiber and step preparation chemical plating copper-nickel bimetal layer
CN110424034B (en) * 2019-09-06 2021-03-19 昆明理工大学 Method for metalizing surface of irregular ceramic particles
CN110885575A (en) * 2019-12-23 2020-03-17 安徽国电能源设备工程有限公司 Processing technology of heat-insulating and temperature-resistant coating for electric boiler
CN111168082A (en) * 2020-01-20 2020-05-19 中车工业研究院有限公司 Conductive fabric
CN111621977A (en) * 2020-06-24 2020-09-04 江南大学 Palladium-free activated nickel-plated conductive cotton fabric and preparation method thereof
CN116556051B (en) * 2023-05-19 2024-05-24 银维康新材料科技(珠海)有限公司 Antioxidation silver fiber fabric

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