CN116497596A - Single-walled carbon nanotube/flexible fabric composite electrothermal film and preparation method and application thereof - Google Patents
Single-walled carbon nanotube/flexible fabric composite electrothermal film and preparation method and application thereof Download PDFInfo
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- CN116497596A CN116497596A CN202310249678.2A CN202310249678A CN116497596A CN 116497596 A CN116497596 A CN 116497596A CN 202310249678 A CN202310249678 A CN 202310249678A CN 116497596 A CN116497596 A CN 116497596A
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- 239000002109 single walled nanotube Substances 0.000 title claims abstract description 60
- 239000004744 fabric Substances 0.000 title claims abstract description 48
- 239000002131 composite material Substances 0.000 title claims abstract description 28
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 33
- 238000000034 method Methods 0.000 claims abstract description 31
- FDWREHZXQUYJFJ-UHFFFAOYSA-M gold monochloride Chemical compound [Cl-].[Au+] FDWREHZXQUYJFJ-UHFFFAOYSA-M 0.000 claims abstract description 29
- 238000007667 floating Methods 0.000 claims abstract description 11
- 238000010438 heat treatment Methods 0.000 claims abstract description 10
- 238000004050 hot filament vapor deposition Methods 0.000 claims abstract description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000011889 copper foil Substances 0.000 claims abstract description 8
- 239000002904 solvent Substances 0.000 claims abstract description 7
- 238000001914 filtration Methods 0.000 claims abstract description 6
- 239000002390 adhesive tape Substances 0.000 claims abstract description 4
- 239000000758 substrate Substances 0.000 claims abstract description 3
- 238000005406 washing Methods 0.000 claims abstract description 3
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 claims description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 8
- 238000000151 deposition Methods 0.000 claims description 6
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 4
- 230000008021 deposition Effects 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 2
- 239000003973 paint Substances 0.000 claims description 2
- 238000011084 recovery Methods 0.000 claims description 2
- 229910052709 silver Inorganic materials 0.000 claims description 2
- 239000004332 silver Substances 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 abstract description 5
- 230000009471 action Effects 0.000 abstract description 2
- 230000004888 barrier function Effects 0.000 abstract description 2
- 239000002041 carbon nanotube Substances 0.000 description 12
- 229910021393 carbon nanotube Inorganic materials 0.000 description 12
- 238000000967 suction filtration Methods 0.000 description 11
- 208000032365 Electromagnetic interference Diseases 0.000 description 7
- 238000005485 electric heating Methods 0.000 description 5
- 239000012528 membrane Substances 0.000 description 5
- 239000002238 carbon nanotube film Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000000554 physical therapy Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910003771 Gold(I) chloride Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000001000 micrograph Methods 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010345 tape casting Methods 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- 238000009210 therapy by ultrasound Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
- H05B3/34—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs
- H05B3/342—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs heaters used in 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
- 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
- D06M11/07—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 halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof
- D06M11/11—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 halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof with halogen acids or salts thereof
- D06M11/13—Ammonium halides or halides of elements of Groups 1 or 11 of the Periodic Table
-
- 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
- D06M11/73—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 carbon or compounds thereof
- D06M11/74—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 carbon or compounds thereof with carbon or graphite; with carbides; with graphitic acids or their salts
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0073—Shielding materials
- H05K9/0081—Electromagnetic shielding materials, e.g. EMI, RFI shielding
- H05K9/0083—Electromagnetic shielding materials, e.g. EMI, RFI shielding comprising electro-conductive non-fibrous particles embedded in an electrically insulating supporting structure, e.g. powder, flakes, whiskers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing Of Electric Cables (AREA)
- Carbon And Carbon Compounds (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a single-walled carbon nanotube/flexible fabric composite electrothermal film and a preparation method and application thereof, and belongs to the technical field of composite conductive fabrics. The method comprises the steps of filtering a single-walled carbon nanotube prepared by a floating catalytic chemical vapor deposition method on a flexible fabric substrate with a certain size through a vacuum pump, adjusting the thickness of the single-walled carbon nanotube deposited on the flexible fabric by controlling the filtering time to obtain a single-walled carbon nanotube/flexible fabric composite film, attaching a copper foil adhesive tape with a certain size to the edge of the single-walled carbon nanotube/flexible fabric composite film to obtain a single-walled carbon nanotube/flexible fabric electrothermal film, dripping a gold chloride solution on the surface of the single-walled carbon nanotube/flexible fabric composite film, standing for a certain time, washing with a pure solvent, and airing. The gold chloride doping can not only reduce the Schottky barrier (junction resistance) between the carbon tubes, but also densify the film, and the heating performance of the electrothermal film can be improved under the combined action of the gold chloride doping and the film.
Description
Technical Field
The invention belongs to the technical field of composite conductive fabrics, and particularly relates to a single-walled carbon nanotube/flexible fabric composite electrothermal film, and a preparation method and application thereof.
Background
Electrothermal films have wide application in different modern technical fields, such as flexible heating films, wearable electronic products, thermal therapy gaskets, etc. Conventional heaters commonly used have the disadvantages of being prone to aging and becoming brittle, low in heating efficiency, large in size and not waterproof. Single-wall carbon nanotubes have received much attention due to their excellent optical, electrical, thermal and mechanical properties, and have become candidates for new generation electrothermal film materials.
The preparation method of the single-wall carbon nanotube electrothermal film generally comprises a spraying method, a knife coating method, a spin coating method, a solution suction filtration method and a floating chemical vapor deposition method. In these methods, the wet process involves complicated steps such as selection of a dispersant, purification, long-time ultrasonic treatment, etc., which inevitably introduce new defects to deteriorate the performance of the carbon tube. Wherein the uniformity of carbon tube dispersion affects the uniformity of carbon tube on the filter membrane, and the pollution of waste liquid post-treatment to the environment is also a concern. For example, han et al prepared single-walled carbon nanotube films using solution suction filtration and made electrothermal films, but the heating performance of electrothermal films was not very desirable (Yoon et al, adv. Mater 2007,19, 4284-4287). The main reason may be that the quality of the carbon nanotubes is degraded and defects are introduced or the carbon nanotubes are truncated during the dispersion of the single-walled carbon nanotubes with a solvent. In contrast, the single-wall carbon nanotube film prepared by the floating catalytic chemical vapor deposition method can reduce environmental pollution by avoiding using solvent to disperse the carbon nanotubes, and can obtain a film with excellent conductivity and free transfer by a dry method. So far, the related research of directly depositing the prepared carbon nano tube to a fabric to form an electrothermal film by adopting a floating catalytic chemical vapor deposition method has not been reported.
Disclosure of Invention
In view of the above, the invention aims to provide a single-walled carbon nanotube/flexible fabric composite electrothermal film, and a preparation method and application thereof. The invention solves the defects of hard and brittle texture and the like of the traditional metal electric heater after heating and cooling circulation, and in addition, the invention expands a new recycling way for a large amount of waste melt-blown cloth.
The invention aims at realizing the following steps:
the invention provides a preparation method of a single-walled carbon nanotube/flexible fabric composite electrothermal film, which mainly comprises the following steps: firstly, filtering the single-walled carbon nanotube prepared by a floating catalytic chemical vapor deposition method on a flexible fabric substrate with a certain size by a vacuum pump, adjusting the thickness of the single-walled carbon nanotube deposited on the flexible fabric by controlling the filtering time to obtain a single-walled carbon nanotube/flexible fabric composite film, and attaching a copper foil adhesive tape with a certain size to the edge of the single-walled carbon nanotube/flexible fabric composite film to prepare the single-walled carbon nanotube/flexible fabric electrothermal film.
Based on the technical scheme, the single-walled carbon nanotube/flexible fabric composite film can be further cut into specific sizes and shapes according to different actual requirements.
Based on the technical scheme, further, the prepared single-walled carbon nanotube/flexible fabric electrothermal film has the following dimensions: 1-4 cm, width: 1-3 cm, the size of the copper foil tape is long: 1-3 cm, and 1-2mm wide.
Based on the technical scheme, further, the suction filtration rate of the vacuum pump is 700+/-50 sccm, the deposition time is 3-8 hours, the size of the filter membrane is 30-200mm (which can be adjusted according to actual requirements), and the flexible fabric comprises a melt-blown cloth layer of the recovery mask.
Based on the technical proposal, further, the diameter of the single-wall carbon nano tube prepared by the floating catalytic chemical vapor deposition method is 1.5-2.1 nm, the diameter of the tube bundle is 1.5-40 nm, and the length of the tube bundle is 5-45 mu m.
Based on the technical scheme, the gold chloride solution is further dripped on the surface of the single-walled carbon nanotube/flexible fabric composite film, and the film is obtained after standing for a certain time, washing with a pure solvent and airing.
Based on the technical scheme, further, the purity of the gold chloride raw material is more than 99.9%, the solvent for preparing the gold chloride is one or a mixed solvent of more than two of acetonitrile, ethanol and isopropanol, and the concentration of the gold chloride solution is 10-50 mmol/L.
Based on the technical scheme, the gold chloride solution is further dripped in an amount of 0.1-0.4 mL, and the standing time is 2-5 min.
Based on the technical scheme, further, a strip-shaped conductive silver paint is sprayed on the joint position of the copper foil adhesive tape and the single-wall carbon nano tube, so as to improve the contact between the heating film and the electrode.
The invention also provides the single-walled carbon nanotube/flexible fabric composite electrothermal film obtained by the preparation method.
The invention also provides application of the single-walled carbon nanotube/flexible fabric composite electric heating film in electric heating or/and electromagnetic shielding equipment.
Based on the technical scheme, further, the electric heating or/and electromagnetic shielding equipment comprises a thermal physiotherapy pad and a wearable electronic product.
Compared with the prior art, the invention has the following beneficial effects:
1. the single-wall carbon nano tube film prepared by adopting the floating catalytic chemical vapor deposition method has the characteristics of high quality and good conductivity, and the obtained single-wall carbon nano tube film has adjustable thickness, can be tightly adhered with melt-blown cloth by electrostatic attraction, surface morphology and pore filling under the condition of no adhesive, and has the characteristics of environmental protection and no pollution.
2. The method has the advantages that the gold chloride doping operation is simple, the time consumption is short, the conductivity of the film is obviously improved by a doping method, the electrothermal performance of the film is further improved, the Schottky barrier (junction resistance) between carbon tubes can be reduced by the gold chloride doping, the film can be densified, and the heating performance of the electrothermal film can be improved by the combined action of the gold chloride doping and the film.
3. The single-walled carbon nanotube/flexible fabric composite electrothermal film obtained by the invention has good mechanical flexibility, water resistance and EMI (electro magnetic interference) characteristics.
4. The filter membrane used in the invention is a mask melt-blown cloth layer, so that the recycling of resources is truly realized.
5. The single-wall carbon nano tube/flexible fabric composite electrothermal film has the advantages of low pressure, high temperature and the like.
Drawings
In order to more clearly illustrate the embodiments of the present invention, the drawings to which the embodiments relate will be briefly described.
FIG. 1 is an optical image (a) of a single-walled carbon nanotube/meltblown composite electrothermal film at different deposition times and its temperature-time diagram (b) at 5V;
FIG. 2 is a scanning electron microscope image of single-walled carbon nanotubes deposited on a meltblown web in example 1;
FIG. 3 is a graph of raw and AuCl at different deposition times 3 Surface resistance of the doped single-walled carbon nanotube/meltblown composite electrothermal film;
fig. 4 shows the total electromagnetic interference SE (a) and the average EMI SE (b) through reflection and absorption of the original and doped single-walled carbon nanotube/meltblown composite electrothermal film of example 2 in the frequency range of 8.2 to 12.4 GHz.
Detailed Description
The following detailed description of the invention is provided in connection with examples, but the implementation of the invention is not limited thereto, and it is obvious that the examples described below are only some examples of the invention, and that it is within the scope of protection of the invention to those skilled in the art to obtain other similar examples without inventive faculty.
In the embodiment, four probes are adopted to test the surface resistance of the electric hot melt blown cloth, an infrared thermal imager is adopted to test the temperature of the electric heating film, and a vector network analyzer is adopted to test the electromagnetic shielding performance.
Example 1:
the single-wall carbon nano tube is prepared by adopting a floating catalytic chemical vapor deposition method, the carbon nano tube is directly deposited on the melt-blown cloth by using a vacuum pump to be filtered at an outlet, the suction filtration rate of the vacuum pump is 680sccm, the diameter of a filter membrane is 47mm, and the suction filtration time is 3 hours. Cutting single-wall carbon nanotube/melt-blown cloth into 2X 3cm pieces 2 Is adhered with 0.2X2 cm at the edge 2 See fig. 1 (a). The invention can regulate the thickness of the film, namely the light transmittance. When the applied voltage is 5V, the surface temperature of the single-wall carbon nano tube/melt-blown electrothermal film can reach 37 ℃ below zero, as shown in figure 1 (b). As shown in figure 2, a Scanning Electron Microscope (SEM) of the single-wall carbon nano tube/melt-blown electrothermal film shows that the carbon nano tube prepared by the method has high purity and the carbon nano tubes are closely contacted. When the suction filtration time was 3 hours, the surface resistance of the carbon nanotube/meltblown was measured to be 116 Ω/sq., as shown in fig. 3. Then using gold chloride doped single-wall carbon nanotube film, dissolving gold chloride raw material in acetonitrile to prepare solution with concentration of 15mmol/L, taking 0.1mL of gold chloride solution to drop on the carbon nanotube film, standing for 3 min, then removing redundant gold chloride solution, and airing at room temperature. The doped sheet resistance was then tested again, resulting in a sheet resistance of 54 Ω/sq., as shown in fig. 3.
Example 2
The method comprises the steps of preparing single-wall carbon nanotubes by adopting a floating catalytic chemical vapor deposition method, directly depositing the carbon nanotubes on melt-blown cloth by using a vacuum pump to filter the carbon nanotubes at an outlet, wherein the suction filtration rate of the vacuum pump is 680sccm, the diameter of a filter membrane is 100mm, and the suction filtration time is 8 hours. Cutting single-wall carbon nanotube/melt-blown cloth into 4×4cm 2 Is adhered with 4X 4cm at the edge 2 Is a copper foil tape. The thickness of the film, namely the light transmittance, can be regulated and controlled by controlling the suction filtration time. When the applied voltage is 5V, the surface temperature of the single-wall carbon nano tube/melt-blown electrothermal film can reach 47 ℃ below zero, as shown in figure 1 (b). The scanning electron microscope shows that the carbon nanotubes prepared by the method have high purity and are closely contacted with each other. When the suction filtration time is 8hThe area resistance of the single-walled carbon nanotube/meltblown electrothermal film (film thickness 150 μm) was measured to be 57 Ω/sq. Then using gold chloride doped single-wall carbon nanotube film, dissolving gold chloride raw material in ethanol to prepare solution with concentration of 20mmol/L, taking 0.2ml of gold chloride solution to drop on the carbon nanotube film, standing for 5min, then removing redundant gold chloride solution, and airing at room temperature. The doped sheet resistance was then tested again, resulting in a sheet resistance of 26 Ω/sq. Subsequently, the prepared single-walled carbon nanotube/meltblown electrothermal film was tested for electrical heating and EMI performance. When the suction filtration time is 8 hours, the initial EMI performance without gold chloride doping can reach 8.4dB, and the EMI performance after gold chloride doping can reach 27.1dB (the civil level is reached), which shows that the performance of the electrothermal film after doping is greatly improved. The gold chloride treatment reduces the junction resistance between the carbon nanotubes and densifies the carbon nanotube film, and the method has the advantages of simple process, short time consumption, flexible electrothermal film, excellent electric heating and EMI performance, and can be used for thermal physiotherapy pads, rapid water evaporators and the like.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (10)
1. The preparation method of the single-wall carbon nano tube/flexible fabric composite electrothermal film is characterized by mainly comprising the following steps of: firstly, filtering the single-walled carbon nanotube prepared by a floating catalytic chemical vapor deposition method on a flexible fabric substrate with a certain size by a vacuum pump, adjusting the thickness of the single-walled carbon nanotube deposited on the flexible fabric by controlling the filtering time to obtain a single-walled carbon nanotube/flexible fabric composite film, and attaching a copper foil adhesive tape with a certain size to the edge of the single-walled carbon nanotube/flexible fabric composite film to prepare the single-walled carbon nanotube/flexible fabric electrothermal film.
2. The method of claim 1, wherein the single-walled carbon nanotube/flexible fabric electrothermal film is produced in a size of: 1-4 cm, width: 1-3 cm, the size of the copper foil tape is long: 1-3 cm, and 1-2mm wide.
3. The method of claim 1, wherein the vacuum pump has a suction rate of 700±50sccm, a deposition time of 3 to 8 hours, a filter size of 30 to 200mm, and the flexible fabric comprises a meltblown layer of a recovery mask.
4. The method according to claim 1, wherein the diameter of the single-walled carbon nanotubes prepared by the floating catalytic chemical vapor deposition method is 1.5-2.1 nm, the diameter of the tube bundles is 1.5-40 nm, and the length of the tube bundles is 5-45 μm.
5. The preparation method of claim 1, wherein the gold chloride solution is dripped on the surface of the single-walled carbon nanotube/flexible fabric composite film, and the film is obtained after standing for a certain time, washing with a pure solvent and airing.
6. The preparation method of the gold chloride according to claim 5, wherein the purity of the gold chloride raw material is more than 99.9%, the solvent for preparing the gold chloride is one or more than two of acetonitrile, ethanol and isopropanol, and the concentration of the gold chloride solution is 10-50 mmol/L.
7. The method according to claim 5, wherein the amount of the gold chloride solution is 0.1 to 0.4mL and the standing time is 2 to 5 minutes.
8. The method according to claim 1, wherein a strip-shaped conductive silver paint is sprayed on the joint of the copper foil tape and the single-walled carbon nanotubes in order to improve contact between the heating film and the electrode.
9. The single-walled carbon nanotube/flexible fabric composite electrothermal film obtained by the method of any one of claims 1 to 8.
10. The use of the single-walled carbon nanotube/flexible fabric composite electrothermal film of claim 9 in an electrical heating or/and electromagnetic shielding device.
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| CN202310249678.2A CN116497596A (en) | 2023-03-15 | 2023-03-15 | Single-walled carbon nanotube/flexible fabric composite electrothermal film and preparation method and application thereof |
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| CN117512991A (en) * | 2024-01-03 | 2024-02-06 | 苏州宝丽迪材料科技股份有限公司 | Method for coating carbon nano tube on substrate and application thereof |
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| 张建峰 等: ""新型功能复合材料"", vol. 1, 28 February 2021, 河海大学出版社, pages: 127 - 128 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117512991A (en) * | 2024-01-03 | 2024-02-06 | 苏州宝丽迪材料科技股份有限公司 | Method for coating carbon nano tube on substrate and application thereof |
| CN117512991B (en) * | 2024-01-03 | 2024-04-12 | 苏州宝丽迪材料科技股份有限公司 | Method for coating carbon nano tube on substrate and application thereof |
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