CN114427108B - Method and system for continuously electroplating metal on surface of carbon fiber - Google Patents
Method and system for continuously electroplating metal on surface of carbon fiber Download PDFInfo
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- CN114427108B CN114427108B CN202111189919.6A CN202111189919A CN114427108B CN 114427108 B CN114427108 B CN 114427108B CN 202111189919 A CN202111189919 A CN 202111189919A CN 114427108 B CN114427108 B CN 114427108B
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- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 218
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 218
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 171
- 238000009713 electroplating Methods 0.000 title claims abstract description 55
- 239000002184 metal Substances 0.000 title claims abstract description 50
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 45
- 239000003292 glue Substances 0.000 claims abstract description 39
- 239000002905 metal composite material Substances 0.000 claims abstract description 27
- 238000003892 spreading Methods 0.000 claims abstract description 21
- 230000007480 spreading Effects 0.000 claims abstract description 19
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 229920002120 photoresistant polymer Polymers 0.000 claims abstract description 12
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical group [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 31
- 238000007747 plating Methods 0.000 claims description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 28
- 238000005406 washing Methods 0.000 claims description 22
- 238000001035 drying Methods 0.000 claims description 19
- 238000004804 winding Methods 0.000 claims description 18
- 238000007599 discharging Methods 0.000 claims description 14
- 229910052759 nickel Inorganic materials 0.000 claims description 14
- 229910021586 Nickel(II) chloride Inorganic materials 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 6
- 239000002923 metal particle Substances 0.000 claims description 6
- QMMRZOWCJAIUJA-UHFFFAOYSA-L nickel dichloride Chemical compound Cl[Ni]Cl QMMRZOWCJAIUJA-UHFFFAOYSA-L 0.000 claims description 6
- LGQLOGILCSXPEA-UHFFFAOYSA-L nickel sulfate Chemical group [Ni+2].[O-]S([O-])(=O)=O LGQLOGILCSXPEA-UHFFFAOYSA-L 0.000 claims description 6
- 229910000363 nickel(II) sulfate Inorganic materials 0.000 claims description 6
- 150000003839 salts Chemical class 0.000 claims description 6
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 5
- 150000001879 copper Chemical class 0.000 claims description 4
- 238000005554 pickling Methods 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 4
- 239000004094 surface-active agent Substances 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 claims description 3
- RAOSIAYCXKBGFE-UHFFFAOYSA-K [Cu+3].[O-]P([O-])([O-])=O Chemical compound [Cu+3].[O-]P([O-])([O-])=O RAOSIAYCXKBGFE-UHFFFAOYSA-K 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910000365 copper sulfate Inorganic materials 0.000 claims description 3
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical group [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims description 3
- 150000002815 nickel Chemical class 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 239000001632 sodium acetate Substances 0.000 claims description 3
- 235000017281 sodium acetate Nutrition 0.000 claims description 3
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 claims description 3
- 239000001509 sodium citrate Substances 0.000 claims description 3
- GGHPAKFFUZUEKL-UHFFFAOYSA-M sodium;hexadecyl sulfate Chemical compound [Na+].CCCCCCCCCCCCCCCCOS([O-])(=O)=O GGHPAKFFUZUEKL-UHFFFAOYSA-M 0.000 claims description 3
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 3
- RZHBMYQXKIDANM-UHFFFAOYSA-N dioctyl butanedioate;sodium Chemical compound [Na].CCCCCCCCOC(=O)CCC(=O)OCCCCCCCC RZHBMYQXKIDANM-UHFFFAOYSA-N 0.000 claims description 2
- 238000002386 leaching Methods 0.000 claims description 2
- RYYKJJJTJZKILX-UHFFFAOYSA-M sodium octadecanoate Chemical compound [Na+].CCCCCCCCCCCCCCCCCC([O-])=O RYYKJJJTJZKILX-UHFFFAOYSA-M 0.000 claims description 2
- 239000006179 pH buffering agent Substances 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 6
- 239000006185 dispersion Substances 0.000 abstract description 2
- 238000007654 immersion Methods 0.000 description 10
- 239000002131 composite material Substances 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 238000001878 scanning electron micrograph Methods 0.000 description 6
- 238000000724 energy-dispersive X-ray spectrum Methods 0.000 description 5
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 4
- 239000004327 boric acid Substances 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000001465 metallisation Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000006174 pH buffer Substances 0.000 description 2
- -1 preferably Chemical class 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- APSBXTVYXVQYAB-UHFFFAOYSA-M sodium docusate Chemical group [Na+].CCCCC(CC)COC(=O)CC(S([O-])(=O)=O)C(=O)OCC(CC)CCCC APSBXTVYXVQYAB-UHFFFAOYSA-M 0.000 description 1
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 description 1
- 229940074404 sodium succinate Drugs 0.000 description 1
- ZDQYSKICYIVCPN-UHFFFAOYSA-L sodium succinate (anhydrous) Chemical compound [Na+].[Na+].[O-]C(=O)CCC([O-])=O ZDQYSKICYIVCPN-UHFFFAOYSA-L 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D7/00—Electroplating characterised by the article coated
- C25D7/06—Wires; Strips; Foils
- C25D7/0607—Wires
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/54—Electroplating of non-metallic surfaces
-
- 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
- D06M2101/40—Fibres of carbon
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Textile Engineering (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Electroplating Methods And Accessories (AREA)
Abstract
The invention discloses a method and a system for continuously electroplating metal on the surface of a carbon fiber. The method comprises the following steps: continuously passing the carbon fiber through a high-temperature glue removing device provided with an air flow filament spreading mechanism to perform glue removing treatment to obtain pretreated carbon fiber; and electroplating the pretreated carbon fiber to obtain the metal composite carbon fiber. The method provided by the invention has the advantages that the surface photoresist removing effect of the carbon fiber is good, the electroplating dispersion is good, the carbon fiber can realize continuous and uniform metal electroplating under the condition of keeping the original mechanical strength, and the carbon fiber after electroplating has no black core phenomenon.
Description
Technical Field
The invention belongs to the technical field of carbon fiber metallization, and particularly relates to a method and a system for continuously electroplating metal on the surface of a carbon fiber.
Background
The nickel-plated carbon fiber is a high-conductivity light fiber material which uniformly coats a metal coating on the surface of a carbon fiber wire on the basis of continuous nano modification on the surface of the carbon fiber, has the advantages of stronger corrosion resistance, light weight, higher strength, unique conductivity and magnetic conductivity and the like compared with the traditional electromagnetic shielding material, and has important application in the fields of aerospace, military equipment, rail transit, communication electronics, new energy automobiles and the like.
The surface of the carbon fiber precursor is coated with the organic glue before leaving the factory, so that the surface of the carbon fiber is smooth and is easy to wind. However, the presence of the colloidal layer is disadvantageous for metal coating on the surface of the carbon fiber, and in particular for electroplating on the surface of the carbon fiber. Before the carbon fiber is electroplated, the carbon fiber must be subjected to a photoresist removing treatment, and two common photoresist removing methods are adopted, namely, an organic solvent photoresist removing method (using a similar compatibility principle) and a photoresist removing method through a high-temperature treatment (high-temperature cracking of a photoresist layer). The traditional photoresist removing method has low photoresist removing efficiency of the carbon fiber, and particularly aims at large-tow carbon fiber, thereby influencing the deposition of metallic nickel on the surface of the carbon fiber during electroplating. In addition, because the carbon wires of the large-tow carbon fibers gather and shield the electric field lines, the outer layer metal deposition of one-tow carbon fibers is more during electroplating, and the plating layer deposition in the tow is not up, and the phenomenon of uneven electroplating and black heart appears. The prior art mainly has the following defects: the chemical plating process is complex, and the thickness of the plating layer is difficult to control; (2) In the traditional method, the surface metallization of the carbon fiber has a plurality of and scattered working procedures, and the carbon fiber product is difficult to continuously process and plate; (3) Aiming at large-tow carbon fibers, as the number of monofilaments is large, surface fibers have a certain shielding effect on internal fibers, and the phenomenon of uneven electroplating and black heart easily occurs in the traditional electroplating process; (4) The conventional carbon fiber electroplating process can seriously weaken the original mechanical strength of the carbon fiber. Therefore, a method for continuously electroplating metal on the surface of carbon fiber is needed to be solved.
Disclosure of Invention
The invention mainly aims to provide a method and a system for continuously electroplating metal on the surface of carbon fiber, which are used for overcoming the defects of the prior art.
In order to achieve the purpose of the invention, the technical scheme adopted by the invention comprises the following steps:
the embodiment of the invention provides a method for continuously electroplating metal on the surface of a carbon fiber, which comprises the following steps:
continuously passing the carbon fiber through a high-temperature glue removing device provided with an air flow filament spreading mechanism to perform glue removing treatment to obtain pretreated carbon fiber;
and electroplating the pretreated carbon fiber to obtain the metal composite carbon fiber.
In some more specific embodiments, the air-spreading mechanism at least spreads the carbon fiber filaments of the carbon fibers by loosening them in a radial direction of the carbon fibers under the action of an air flow.
The embodiment of the invention also provides the metal composite carbon fiber prepared by the method, and the metal content in the metal composite carbon fiber is 25-60 wt%.
The embodiment of the invention also provides a system for continuously electroplating metal on the surface of the carbon fiber, which comprises:
the discharging device is at least used for providing carbon fibers;
the high-temperature glue removing device is provided with an air flow filament spreading mechanism and is at least used for removing organic glue on the surface of the carbon fiber, and carbon fiber monofilaments in the carbon fiber are loosened and spread along the radial direction of the carbon fiber under the action of air flow, so that pretreated carbon fiber is obtained;
and the electroplating device is at least used for carrying out electroplating treatment on the pretreated carbon fiber to obtain the metal composite carbon fiber.
Compared with the prior art, the invention has the beneficial effects that:
(1) The method for continuously electroplating the metal on the surface of the carbon fiber has good glue removing effect and good electroplating dispersion, so that the carbon fiber realizes continuous and uniform metal electroplating under the condition of keeping the original mechanical strength, and the electroplated product has no black core phenomenon;
(2) The carbon fiber electroplating process provided by the invention is simple and easy to integrate, and the plating thickness of the produced metal composite carbon fiber product is uniform and controllable;
(3) The glue removing device in the system for continuously electroplating metal on the surface of the carbon fiber is provided with the airflow filament spreading mechanism, so that the glue removing effect is good, the broken filaments are few, and the subsequent electroplating is more uniform due to the spreading of the filament bundles.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the invention described in the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a system for continuously plating metal on the surface of carbon fibers in an exemplary embodiment of the invention;
FIGS. 2 a-2 c are SEM images and EDS spectra of Dongli carbon fibers of example 1 of the present invention;
FIGS. 3 a-3 c are SEM and EDS images of pretreated carbon fibers of example 1 of the present invention;
FIGS. 4 a-4 c are SEM images of metallic nickel composite carbon fibers of example 1 of the present invention, i.e., EDS spectra;
fig. 5 is a picture of the metal nickel composite carbon fiber prepared in comparative example 1 of the present invention.
Detailed Description
In view of the shortcomings of the prior art, the inventor of the present application has long studied and put forward a great deal of practice, and the technical solution of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Specifically, as one aspect of the technical scheme of the invention, the method for continuously electroplating metal on the surface of the carbon fiber comprises the following steps:
continuously passing the carbon fiber through a high-temperature glue removing device provided with an air flow filament spreading mechanism to perform glue removing treatment to obtain pretreated carbon fiber;
and electroplating the pretreated carbon fiber to obtain the metal composite carbon fiber.
In some preferred embodiments, the air-spreading mechanism at least spreads the carbon fiber filaments in the carbon fibers by loosening them in the radial direction of the carbon fibers under the action of an air flow, so that the carbon fibers achieve a spreading effect.
The high-temperature glue removing device provided by the invention is provided with a gas flowing and silk spreading function, so that the problem of black heart of a large silk bundle can be solved.
In some preferred embodiments, the temperature of the de-glue treatment is 400 to 600 ℃ for a period of 2 to 10 minutes.
In some preferred embodiments, the method further comprises: and rinsing with clear water after the photoresist removing treatment is completed.
In some preferred embodiments, the carbon fibers comprise carbon fiber tows having a filament count of 1K-48K.
Further, the carbon fibers include carbon fiber tows having a monofilament number of 1K, 3K, 6K, 12K, 24K or 48K.
Further, the diameter of the monofilaments in the carbon fiber is 6-8 μm.
In some preferred embodiments, the method comprises: the pretreated carbon fiber is continuously subjected to the electroplating treatment by an electroplating solution with the pH value of 5.0-5.5, wherein the process conditions of the electroplating treatment comprise: the current density is 0.4-2.0A/dm 2 The voltage is 1.5-5.0V, and the electroplating treatment time is 2-15 min; the electroplating solution includes a metal salt, a pH buffer, and a surfactant.
Further, the concentration of the metal salt in the electroplating solution is 50-100 g/L.
Further, the metal salt includes a nickel salt and/or a copper salt; particularly preferably, the nickel salt comprises nickel sulfate and/or nickel chloride; particularly preferably, the copper salt comprises copper sulfate and/or copper phosphate.
Further, the pH buffer includes any one or a combination of two or more of boric acid, sodium citrate, and sodium acetate, and is not limited thereto.
Further, the surfactant includes any one or a combination of two or more of sodium dodecyl sulfate, sodium dodecyl benzene sulfonate, sodium hexadecyl sulfate, sodium dioctyl succinate sulfonate, and sodium stearate, and is not limited thereto.
In some preferred embodiments, the method further comprises: and after the electroplating treatment is finished, washing and drying the obtained metal composite carbon fiber.
Further, the washing specifically includes: and (3) carrying out normal-temperature clean water pickling, ultrasonic hot water pickling and clean water leaching treatment on the metal composite carbon fiber.
Further, the temperature of the drying treatment is 80-150 ℃ and the time is 2-10 min.
In some preferred embodiments, the method further comprises: and rolling the metal composite carbon fiber obtained by the drying treatment at a rolling speed of 0.5 to-2 m/min.
In some preferred embodiments, the metal composite carbon fiber comprises a metal nickel composite carbon fiber.
In some more specific embodiments, the method of continuously plating metal on the surface of the carbon fiber comprises:
(1) The carbon fiber winding drum is arranged on a discharging device for conveying, the discharging device has the function of passively conveying carbon fibers with adjustable tension, and the carbon fibers are 1K, 3K, 6K, 12K, 24K and 48K carbon fiber tows with the monofilament diameters of 6-8 mu m;
(2) The surface pretreatment of the carbon fiber comprises the steps of removing glue on the surface of the carbon fiber and rinsing with clear water, wherein the glue removing device on the surface of the carbon fiber is a high-temperature tube furnace, a furnace body is communicated with the atmosphere, two ends are respectively provided with an inlet and an outlet of the carbon fiber, the lower end is provided with an airflow silk spreading system, and the glue removing temperature is 400-600 ℃;
(3) The pretreated carbon fiber is placed into a plating bath for plating treatment, wherein the plating nickel solution consists of nickel sulfate, nickel chloride, boric acid and sodium dodecyl sulfate, the PH is 5.0-5.5, and the current density is 0.4-2A/dm 2 The voltage is 1.5-5V;
(4) The electroplated carbon fiber is washed and dried, the washing process sequentially comprises normal-temperature clean water immersion washing, ultrasonic hot water immersion washing and clean water rinsing, the drying device is a common high-temperature tube furnace, and the two ends of the furnace body are respectively provided with an inlet and an outlet of the carbon fiber;
(5) And sending the carbon fiber subjected to electroplating drying into a winding device, and winding into a nickel-plated carbon fiber product, wherein the winding speed is 0.5-2m/min, and the thickness of the coating can be controlled according to the winding speed.
In another aspect of the embodiment of the invention, the metal composite carbon fiber prepared by the method is provided, wherein the metal content in the metal composite carbon fiber is 25-60 wt%.
Further, the metal includes and/or copper, and is not limited thereto.
Further, the metal composite carbon fiber comprises carbon fibers and metal layers distributed on the surfaces of the carbon fibers, wherein the metal layers are formed by closely stacking metal particles.
Further, the metal particles are formed by stacking metal atoms, and the particle size of the metal particles is nano-scale.
Further, the thickness of the metal layer is 0.2-2 μm.
Another aspect of an embodiment of the present invention also provides a system for continuously plating metal on a carbon fiber surface, including:
the discharging device is used for providing carbon fibers;
the high-temperature glue removing device is provided with an air flow filament spreading mechanism and is at least used for removing organic glue on the surface of the carbon fiber, and carbon fiber monofilaments in the carbon fiber are loosened and spread along the radial direction of the carbon fiber under the action of air flow, so that pretreated carbon fiber is obtained;
and the electroplating device is at least used for carrying out electroplating treatment on the pretreated carbon fiber to obtain the metal composite carbon fiber.
In some preferred embodiments, the system further comprises a cleaning device for at least washing the electroplated carbon fibers.
In some preferred embodiments, the system further comprises a drying device for at least drying the washed metal-plated carbon fibers to obtain metal composite carbon fibers.
In some preferred embodiments, the system further comprises a winding device for collecting the metal composite carbon fiber.
Specifically, a schematic diagram of a system for continuously plating metal on a carbon fiber surface in the present invention is shown in fig. 1, and the system comprises: the device comprises a discharging device, a glue removing device, a plating tank, a cleaning tank, a drying device and a winding device.
The glue removing device is provided with the air flow silk spreading mechanism, has a very good silk spreading effect on large tows with the temperature of more than 24K, has less broken silk and complete glue removing, so that electroplating is more uniform; the surfaces of the carbon fiber tows with the diameters of 1K, 3K, 6K, 12K, 24K and 48K of 6-7 mu m are continuously and uniformly electroplated with nickel, the thickness of the plating layer is adjustable, and the electroplated product has no black core phenomenon.
The technical scheme of the present invention is further described in detail below with reference to several preferred embodiments and the accompanying drawings, and the embodiments are implemented on the premise of the technical scheme of the present invention, and detailed implementation manners and specific operation procedures are given, but the protection scope of the present invention is not limited to the following embodiments.
The experimental materials used in the examples used below, unless otherwise specified, are all commercially available from conventional biochemical reagent companies.
Example 1
(1) The method comprises the steps of placing a carbon fiber winding drum on a discharging device for conveying, wherein the discharging device has the function of passively conveying carbon fibers with adjustable tension, and the carbon fibers are 6K carbon fiber tows (Dongli carbon fibers);
(2) Pretreating the surface of the carbon fiber to obtain pretreated carbon fiber, wherein the surface pretreatment comprises the steps of removing glue on the surface of the carbon fiber and rinsing with clear water, the glue removing device on the surface of the carbon fiber is a high-temperature tube furnace, a furnace body is communicated with the atmosphere, two ends of the furnace body are respectively provided with an inlet and an outlet of the carbon fiber, the lower end of the furnace body is provided with an airflow silk spreading mechanism, and the glue removing temperature is 500 ℃ and the time is 5min;
(3) The pretreated carbon fiber is placed into a plating bath for plating treatment, wherein the plating solution consists of nickel sulfate, nickel chloride, boric acid and sodium dodecyl sulfate, the pH value is 5.0-5.5, and the current density is 1.0A/dm 2 The voltage is 2.0V;
(4) The electroplated carbon fiber is washed and dried, the washing process sequentially comprises normal-temperature clean water immersion washing, ultrasonic hot water immersion washing and clean water rinsing, the drying device is a common high-temperature tube furnace, and the two ends of the furnace body are respectively provided with an inlet and an outlet of the carbon fiber;
(5) The carbon fiber after being electroplated and dried is sent to a winding device and wound into metal nickel composite carbon fiber;
characterization of the properties: SEM images of the dongli carbon fibers in the embodiment 1 are shown in fig. 2a to 2b, and EDS spectra are shown in fig. 2 c; SEM images of the pretreated carbon fibers in example 1 are shown in fig. 3 a-3 b, and EDS spectra are shown in fig. 3 c; SEM images of the metal nickel composite carbon fiber in example 1 are shown in fig. 4a to 4b, and EDS spectra are shown in fig. 4 c; as can be seen from the SEM image and the EDS image, the Dongli carbon fiber has smooth surface, the diameter of 7.063 mu m, the main element of the surface of C and trace O (O element is contained in the organic glue); after the carbon fiber is degelatinized, a little colloid is decomposed to remain ash on the surface, the diameter is reduced, and the surface is only provided with C element; the product of continuous nickel electroplating on carbon fiber has roughened surface, contains a plurality of particles which are closely packed, has a diameter increased to 9.364 mu m, has a nickel layer thickness reaching 2 mu m, and has a nickel mass content in the energy spectrum of more than 85% (this is the nickel content on the surface of the carbon fiber, so the nickel content in the energy spectrum is relatively high).
Example 2
(1) The method comprises the steps of placing a carbon fiber winding drum on a discharging device for conveying, wherein the discharging device has the function of passively conveying carbon fibers with adjustable tension, and the carbon fibers are 1K carbon fiber tows (Dongli carbon fibers);
(2) Pretreating the surface of the carbon fiber to obtain pretreated carbon fiber, wherein the surface pretreatment comprises the steps of removing glue on the surface of the carbon fiber and rinsing with clear water, the glue removing device on the surface of the carbon fiber is a high-temperature tube furnace, a furnace body is communicated with the atmosphere, two ends of the furnace body are respectively provided with an inlet and an outlet of the carbon fiber, the lower end of the furnace body is provided with an airflow silk spreading mechanism, and the glue removing temperature is 400 ℃ and the time is 2min;
(3) The pretreated carbon fiber is placed into a plating bath for plating treatment, wherein the plating solution consists of nickel sulfate, nickel chloride, sodium citrate and hexadecyl sodium sulfate, the pH value is 5.0-5.5, and the current density is 0.4A/dm 2 The voltage is 1.5V;
(4) The electroplated carbon fiber is washed and dried, the washing process sequentially comprises normal-temperature clean water immersion washing, ultrasonic hot water immersion washing and clean water rinsing, the drying device is a common high-temperature tube furnace, and the two ends of the furnace body are respectively provided with an inlet and an outlet of the carbon fiber;
(5) And sending the carbon fiber subjected to electroplating drying into a winding device, and winding into the metal nickel composite carbon fiber.
Example 3
(1) The method comprises the steps of placing a carbon fiber winding drum on a discharging device for conveying, wherein the discharging device has the function of passively conveying carbon fibers with adjustable tension, and the carbon fibers are 48K carbon fiber tows (Dongli carbon fibers);
(2) Pretreating the surface of the carbon fiber to obtain pretreated carbon fiber, wherein the surface pretreatment comprises the steps of removing glue on the surface of the carbon fiber and rinsing with clear water, the glue removing device on the surface of the carbon fiber is a high-temperature tube furnace, a furnace body is communicated with the atmosphere, two ends of the furnace body are respectively provided with an inlet and an outlet of the carbon fiber, the lower end of the furnace body is provided with an airflow silk spreading mechanism, and the glue removing temperature is 600 ℃ and the time is 10min;
(3) The pretreated carbon fiber is placed into a plating bath for plating treatment, wherein the plating solution consists of copper sulfate, copper phosphate, boric acid and sodium dodecyl sulfate, the pH value is 5.0-5.5, and the current density is 2A/dm 2 The voltage is 5V;
(4) The electroplated carbon fiber is washed and dried, the washing process sequentially comprises normal-temperature clean water immersion washing, ultrasonic hot water immersion washing and clean water rinsing, the drying device is a common high-temperature tube furnace, and the two ends of the furnace body are respectively provided with an inlet and an outlet of the carbon fiber;
(5) And sending the carbon fibers subjected to electroplating drying into a winding device, and winding into the metal copper composite carbon fibers.
Example 4
(1) The method comprises the steps of placing a carbon fiber winding drum on a discharging device for conveying, wherein the discharging device has the function of passively conveying carbon fibers with adjustable tension, and the carbon fibers are 24K carbon fiber tows (Dongli carbon fibers);
(2) Pretreating the surface of the carbon fiber to obtain pretreated carbon fiber, wherein the surface pretreatment comprises the steps of removing glue on the surface of the carbon fiber and rinsing with clear water, the glue removing device on the surface of the carbon fiber is a high-temperature tube furnace, a furnace body is communicated with the atmosphere, two ends of the furnace body are respectively provided with an inlet and an outlet of the carbon fiber, the lower end of the furnace body is provided with an airflow silk spreading mechanism, and the glue removing temperature is 600 ℃ and the time is 5min;
(3) The pretreated carbon fiber is placed into a plating bath for plating treatment, wherein the plating solution consists of nickel sulfate, nickel chloride, sodium acetate and dioctyl sodium succinate sulfonate, the pH value is 5.0-5.5, and the current density is 1.0A/dm 2 The voltage is 2.0V;
(4) The electroplated carbon fiber is washed and dried, the washing process sequentially comprises normal-temperature clean water immersion washing, ultrasonic hot water immersion washing and clean water rinsing, the drying device is a common high-temperature tube furnace, and the two ends of the furnace body are respectively provided with an inlet and an outlet of the carbon fiber;
(5) The carbon fiber after being electroplated and dried is sent into a winding device and wound into the metal nickel composite carbon fiber
Comparative example 1
The method of this comparative example was the same as in example 1 except that no air-flow filament-stretching mechanism was provided in the glue-removing device, and the obtained product had macroscopic uneven plating and "black heart" phenomenon, as shown in fig. 5.
In addition, the inventors have also conducted experiments with other materials, process operations, and process conditions described in this specification with reference to the foregoing examples, and all obtained desirable results.
It should be understood that the technical solution of the present invention is not limited to the above specific embodiments, and all technical modifications made according to the technical solution of the present invention without departing from the spirit of the present invention and the scope of the claims are within the scope of the present invention.
Claims (11)
1. A method for continuously electroplating metal on the surface of carbon fiber, which is characterized by comprising the following steps:
continuously passing the carbon fiber through a high-temperature glue removing device provided with an air flow filament spreading mechanism to perform glue removing treatment to obtain pretreated carbon fiber; the airflow filament spreading mechanism at least loosens and spreads carbon fiber monofilaments in the carbon fibers along the radial direction of the carbon fibers under the action of airflow; the temperature of the photoresist removing treatment is 400-500 ℃; the carbon fibers are selected from carbon fiber tows with the number of monofilaments of 1K-24K; the diameter of the monofilaments in the carbon fibers is 6-8 mu m;
and continuously electroplating the pretreated carbon fiber by using an electroplating solution with the pH value of 5.0-5.5 to obtain a metal composite carbon fiber; wherein, the technological conditions of the electroplating treatment comprise: the current density is 0.4-2.0A/dm 2 The voltage is 1.5-5.0V, and the electroplating treatment time is 2-15 min; the electroplating solution comprises metal salt, pH buffering agent and surfactant; the metal salt is selected from nickel salt and/or copper salt; the nickel salt is selected from nickel sulfate and/or nickel chloride; the copper salt is selected from copper sulfate and/or copper phosphate; the pH buffering agent comprises any one or more than two of sodium citrate and sodium acetate; the surfactant is selected from one or more than two of sodium dodecyl sulfate, sodium hexadecyl sulfate, sodium dioctyl succinate sulfonate and sodium stearate;
the content of metal in the metal composite carbon fiber is 25-60wt%; the metal comprises nickel and/or copper; the metal composite carbon fiber comprises carbon fibers and metal layers distributed on the surfaces of the carbon fibers, wherein the metal layers are formed by tightly stacking metal particles; the metal particles are formed by stacking metal atoms, and the particle size of the metal particles is nano-scale; the thickness of the metal layer is 0.2-2 mu m.
2. The method according to claim 1, characterized in that: the time of the photoresist removing treatment is 2-10 min.
3. The method according to claim 1, wherein the method further comprises: and rinsing with clear water after the photoresist removing treatment is completed.
4. The method according to claim 1, characterized in that: the concentration of the metal salt in the electroplating solution is 50-100 g/L.
5. The method as recited in claim 1, further comprising: after the electroplating treatment is finished, washing and drying the obtained metal composite carbon fiber;
wherein the washing specifically comprises: the metal composite carbon fiber is subjected to normal-temperature clean water pickling, ultrasonic hot water pickling and clean water leaching treatment; the temperature of the drying treatment is 80-150 ℃ and the time is 2-10 min.
6. The method as recited in claim 1, further comprising: and rolling the metal composite carbon fiber obtained by the drying treatment at a rolling speed of 0.5 to-2 m/min.
7. A metal composite carbon fiber prepared by the method of any one of claims 1-6.
8. A system for continuous metal plating applied to the surface of the carbon fiber according to any one of claims 1 to 6, comprising:
the discharging device is at least used for providing carbon fibers;
the high-temperature glue removing device is provided with an air flow filament spreading mechanism and is at least used for removing organic glue on the surface of the carbon fiber, and carbon fiber monofilaments in the carbon fiber are loosened and spread along the radial direction of the carbon fiber under the action of air flow, so that pretreated carbon fiber is obtained;
and the electroplating device is at least used for carrying out electroplating treatment on the pretreated carbon fiber to obtain the metal composite carbon fiber.
9. The system for continuously plating metal on a carbon fiber surface according to claim 8, further comprising: and the cleaning device is at least used for washing the carbon fibers subjected to the electroplating treatment.
10. The system for continuously plating metal on a carbon fiber surface according to claim 8, further comprising a drying device for drying at least the metal-plated carbon fiber after the washing treatment, thereby obtaining a metal composite carbon fiber.
11. The system for continuously plating metal on a carbon fiber surface according to claim 8, further comprising a winding device for collecting the metal composite carbon fiber.
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200841358A (en) * | 2007-04-03 | 2008-10-16 | Chunghwa Telecom Co Ltd | Apparatus and method for automatically switching the solvent to extract optical cable and remove rubber of electric cable |
| CN102220689A (en) * | 2011-04-13 | 2011-10-19 | 天津大学 | Device and method for continuously electrodepositing transition metal on surfaces of large-tow carbon fibers of 48K or more |
| CN102439206A (en) * | 2009-05-25 | 2012-05-02 | 福井县 | Method for spreading fiber bundles, spread fiber sheet, and method for manufacturing a fiber-reinforced sheet |
| CN102477571A (en) * | 2010-11-22 | 2012-05-30 | 大连兴科碳纤维有限公司 | Technical process for performing electrodeposition on surface of large carbon fiber tow |
| CN102535142A (en) * | 2010-12-21 | 2012-07-04 | 混凝土投资股份有限公司 | Method for dispersing carbon fiber bundles and fine carbon fiber bundles obtained through method |
| CN104862796A (en) * | 2015-05-14 | 2015-08-26 | 威海宝威新材料科技有限公司 | Air-flow fiber spreading device |
| CN106536798A (en) * | 2014-06-24 | 2017-03-22 | 可隆工业株式会社 | Filament web type precursor fabric for activated carbon fiber fabric and method for preparing same |
| WO2017166851A1 (en) * | 2016-03-27 | 2017-10-05 | 华南理工大学 | Palladium-free chemical copper plating method |
| CN108779586A (en) * | 2016-03-09 | 2018-11-09 | J&P科茨有限公司 | Composite yarn and its manufacture |
| CN110484840A (en) * | 2019-07-31 | 2019-11-22 | 曹运福 | A kind of preparation method of carbon fiber reinforced aluminum matrix composite |
| CN110747633A (en) * | 2019-12-03 | 2020-02-04 | 北京航空航天大学 | Preparation method of gumming multifilament of carbon fiber with carbon nano tube deposited on surface |
| CN112831884A (en) * | 2019-11-22 | 2021-05-25 | 财团法人工业技术研究院 | Fiber spreading device |
-
2021
- 2021-10-12 CN CN202111189919.6A patent/CN114427108B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200841358A (en) * | 2007-04-03 | 2008-10-16 | Chunghwa Telecom Co Ltd | Apparatus and method for automatically switching the solvent to extract optical cable and remove rubber of electric cable |
| CN102439206A (en) * | 2009-05-25 | 2012-05-02 | 福井县 | Method for spreading fiber bundles, spread fiber sheet, and method for manufacturing a fiber-reinforced sheet |
| CN102477571A (en) * | 2010-11-22 | 2012-05-30 | 大连兴科碳纤维有限公司 | Technical process for performing electrodeposition on surface of large carbon fiber tow |
| CN102535142A (en) * | 2010-12-21 | 2012-07-04 | 混凝土投资股份有限公司 | Method for dispersing carbon fiber bundles and fine carbon fiber bundles obtained through method |
| CN102220689A (en) * | 2011-04-13 | 2011-10-19 | 天津大学 | Device and method for continuously electrodepositing transition metal on surfaces of large-tow carbon fibers of 48K or more |
| CN106536798A (en) * | 2014-06-24 | 2017-03-22 | 可隆工业株式会社 | Filament web type precursor fabric for activated carbon fiber fabric and method for preparing same |
| CN104862796A (en) * | 2015-05-14 | 2015-08-26 | 威海宝威新材料科技有限公司 | Air-flow fiber spreading device |
| CN108779586A (en) * | 2016-03-09 | 2018-11-09 | J&P科茨有限公司 | Composite yarn and its manufacture |
| WO2017166851A1 (en) * | 2016-03-27 | 2017-10-05 | 华南理工大学 | Palladium-free chemical copper plating method |
| CN110484840A (en) * | 2019-07-31 | 2019-11-22 | 曹运福 | A kind of preparation method of carbon fiber reinforced aluminum matrix composite |
| CN112831884A (en) * | 2019-11-22 | 2021-05-25 | 财团法人工业技术研究院 | Fiber spreading device |
| CN110747633A (en) * | 2019-12-03 | 2020-02-04 | 北京航空航天大学 | Preparation method of gumming multifilament of carbon fiber with carbon nano tube deposited on surface |
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