CN112626848B - Portable low-voltage carbon nano electric heating fabric, preparation method and application - Google Patents
Portable low-voltage carbon nano electric heating fabric, preparation method and application Download PDFInfo
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- 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
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/263—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acids; Salts or esters thereof
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/55—Epoxy resins
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/564—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/643—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain
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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
- H05B3/02—Details
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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
- H05B3/10—Heater elements characterised by the composition or nature of the materials or by the arrangement of the conductor
- H05B3/12—Heater elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
- H05B3/14—Heater elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
- H05B3/145—Carbon only, e.g. carbon black, graphite
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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
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/02—Natural fibres, other than mineral fibres
- D06M2101/04—Vegetal fibres
- D06M2101/06—Vegetal fibres cellulosic
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/32—Polyesters
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- 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]
Abstract
The invention provides a portable low-voltage carbon nano electric heating fabric, a preparation method and application thereof, wherein the preparation method comprises the following steps: dip-dyeing the electrothermal cloth substrate in conductive dispersion liquid, and then rolling and drying; wherein the conductive dispersion liquid comprises the following components in parts by weight: 88-96 parts of graphene slurry and carbon nanotube slurry, 2-10 parts of water-based resin, 1 part of ionic liquid dispersing agent and auxiliary dispersing agent, and 1 part of dyeing and finishing auxiliary agent. Can be applied to the fields of electric heating clothing, electric heating waistbands, electric heating insoles, electric heating carpets and the like.
Description
Technical Field
The invention relates to the field of electric heating cloth, in particular to a portable low-voltage carbon nano electric heating fabric, a preparation method and application.
Background
The common fiber fabric is endowed with an electric heating function, so that the needs of daily warm keeping and outdoor activities of people can be met. Based on electric heating, the absorption wave band of the functional fiber fabric capable of absorbing and emitting far infrared rays is mainly 3-15 microns, and the absorption wave band coincides with the far infrared ray action wave band of the graphene and the carbon nano tube, so that the carbon nano composite fabric is endowed with thermal insulation and physiotherapy functions. The carbon nano particles mainly comprising graphene and carbon nano tubes can absorb and radiate far infrared rays up to 40%, and the main functions of the composite electric heating fabric are thermal insulation, promotion of blood circulation of different parts of a body, fatigue elimination and the like.
At present, most of the current common electric heating fabrics adopt a method of coiling electric heating wires on the surface of the fabric or the flexible substrate, and most of the current common electric heating fabrics generate heat in a linear mode. Common electric heating wires for fabrics are mostly carbon fibers, metal wires or nonmetal electric heating wires, the situation that temperature is uneven easily occurs when linear heating occurs, and the fabrics are not resistant to bending. The cloth cover using the carbon nano tube and the graphene filament as the heating wires adopts the woven blending common fiber, the process is complex, and the required voltage and current are high. Therefore, it is necessary to develop a carbon nano far infrared electric heating cloth which is flexible, light, low-voltage, safe and uniform in heating.
Disclosure of Invention
The invention provides a portable low-voltage carbon nano electric heating fabric, a preparation method and application thereof, and the fabric which is light in weight, bending-resistant, low in cost, uniform in heating, controllable in temperature and easy to carry is prepared, and can be used as an electric heating insole, an electric heating waistband, an electric heating garment and an electric heating blanket.
The technical scheme for realizing the invention is as follows:
a preparation method of a portable low-voltage carbon nano electric heating fabric comprises the following steps:
dip-dyeing the electrothermal cloth substrate in conductive dispersion liquid, and then rolling and drying; wherein the conductive dispersion liquid comprises the following components in parts by weight: 88-96 parts of graphene slurry and carbon nanotube slurry, 2-10 parts of aqueous resin, 1 part of ionic liquid dispersing agent and auxiliary dispersing agent, 1 part of dyeing and finishing auxiliary agent and 100-1000 mPa.s of conductive liquid viscosity.
Specifically, the electric heating cloth base cloth is firstly cleaned by pure water to remove surface dirt, then is fully impregnated in conductive dispersion liquid and then rolled, the redundant conductive dispersion liquid on the surface is scraped, meanwhile, the bonding capability of the dispersion liquid and the base cloth is enhanced, and then the electric heating cloth is obtained after drying at 50 ℃.
The mass ratio of the graphene slurry to the carbon nanotube slurry is (3:7) - (7:3).
The aqueous resin dispersion liquid is one or two of aqueous acrylic resin, epoxy resin or aqueous polyurethane, and the ionic liquid dispersing agent is BmimBr; the dispersion aid agent is a condensate of fatty alcohol and ethylene oxide.
The dyeing and finishing auxiliary agent comprises a penetrating agent and a defoaming agent, wherein the penetrating agent is a polyoxyethylene ether compound, and the defoaming agent is polysiloxane series.
The warps and wefts of the electrothermal cloth base cloth are woven by cotton fibers, polyester fibers or viscose fibers of 150D, and the warps are woven into conductive metal wires at certain intervals.
The electric heating cloth base cloth is formed by blending common fibers and metal wires, warp yarns are common fiber yarns and tinned soft round copper wires, weft yarns are common fiber yarns, and the warp yarns can be one or more of polyester fibers, cotton fibers or viscose fibers. The metal wires comprise, but are not limited to, tinned annealed round copper wires, and the common fiber wires comprise, but are not limited to, cotton fibers, polyester fibers and viscose fibers.
The electric heating cloth base cloth is woven in a manner that the weaving density is 20-24 pieces per cm, and 3-4 pieces of conductive metal wires are woven into the electric heating cloth base cloth every 5-30 cm.
Preferably, the electric heating cloth base cloth is woven in a manner that the weaving density is 20-24 per cm, and the warp yarn and the weft yarn are 17 warp yarns and 17 weft yarns. The weaving mode is that warp threads are woven into three copper wires every 5cm, and 2cm are reserved on two sides of the base cloth for cutting. Three copper wires are woven into the warp every 10cm, and 3cm are reserved on two sides of the warp so as to facilitate cutting. Four metal wires are woven into the warp every 30cm, and 5cm are reserved on two sides of the warp for cutting.
The surface of the electric heating cloth after drying is covered with PVC coating insulating waterproof cloth or insulating waterproof film by adopting a hot melt adhesive method, and an internal power-on circuit of the electric heating cloth is connected with a temperature control switch and a USB/DC port by using a wire to form an independent washable heating sheet.
The use voltage of the low-voltage carbon nano electric heating fabric is within 5-36V, and the heating temperature is adjustable within 30-82 ℃.
The low-voltage carbon nano electric heating fabric is applied to the fields of electric heating clothes, electric heating waistbands, electric heating insoles or electric heating carpets. The portable electric heating fabric comprises main parts such as an electric heating cloth (base cloth and a conducting layer), an electrifying circuit, an insulating waterproof layer, a temperature control switch, a charging device and the like.
The beneficial effects of the invention are as follows: the portable graphene/carbon nanotube piezoelectric heating sheet prepared by the invention has the advantages of rapid temperature rise, uniform surface temperature distribution, far infrared radiation physiotherapy function, voltage control within 5-36V of human body safety voltage, heating temperature adjustment within 30-82 ℃, light weight, portability, water washing and safety and environmental protection, and is a safe and environment-friendly piezoelectric heating physiotherapy fabric. Can be applied to the fields of electric heating clothing, electric heating waistbands, electric heating insoles, electric heating carpets and the like.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, 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 view of a heating fabric according to the present invention.
Detailed Description
The technical solutions of the present invention will be clearly and completely described in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without any inventive effort, are intended to be within the scope of the invention.
Example 1
The preparation method of the portable low-voltage carbon nano electric heating fabric comprises the following components in parts by weight of conductive dispersion liquid, wherein the content of the aqueous carbon nano slurry is 88 parts, and the mass ratio of graphene slurry to carbon nano tube slurry is 3:7. 5 parts of aqueous polyurethane dispersion liquid, 5 parts of aqueous acrylic resin, 0.5 part of ionic liquid dispersant BminBr, 0.5 part of condensate of auxiliary dispersant fatty alcohol and ethylene oxide, 0.6 part of polyoxyethylene ether penetrating agent, and dyeing and finishing auxiliary agent comprising a penetrating agent and a defoaming agent, wherein the penetrating agent is polyoxyethylene ether compound, and the defoaming agent is polysiloxane series defoaming agent 0.4 part. And fully mixing the conductive slurry and the auxiliary agent in a high-speed shearing dispersing machine to form conductive dispersion liquid.
The warp and weft of the electric heating cloth base cloth is formed by weaving 150D cotton fibers, the warp is woven with conductive copper wires at certain intervals, the distance between the metal wires is 5cm, the base cloth is cut into 7 multiplied by 7cm, and the base cloth is subjected to dip dyeing in conductive dispersion liquid and hot pressing and drying at 50 ℃ to prepare the electric heating cloth. The surface resistance of the electric heating cloth is 45-50Ω/≡, the surface is hot-pressed with the insulating waterproof film, the conductive circuit is connected with the temperature control switch and the USB port through the wiring terminal to form an independent electric heating sheet, and the USB port can be connected with the charger or the charging port to realize power supply.
The heating temperature of the electric heating cloth under 5V and 9V voltages can reach 32 ℃ and 50 ℃ respectively, and the electric heating cloth can be applied to the fields of electric heating shoes, electric heating eyepatches, electric heating waistbands, electric heating clothes and the like.
Example 2
In the preparation method of the portable low-voltage carbon nano electric heating fabric, 96 parts of aqueous carbon nano slurry is contained in the conductive dispersion liquid, wherein the mass ratio of graphene slurry to carbon nano tube slurry is 5:5. 1 part of aqueous polyurethane dispersion liquid, 1 part of epoxy resin dispersion liquid, 0.5 part of ionic liquid dispersant BmimBr0.5 part of auxiliary dispersant fatty alcohol and ethylene oxide condensate, 0.6 part of polyoxyethylene ether penetrating agent and 0.4 part of polysiloxane defoamer. And fully mixing the conductive slurry and the auxiliary agent in a high-speed shearing dispersing machine to form conductive dispersion liquid.
The warp of the electric heating cloth base cloth is formed by blending 150D cotton fibers, metal wire fibers and common 150D polyester fibers, and the distance between the metal wires is 5cm. The electrothermal cloth is made up by dip-dyeing base cloth cut into 7X 7cm in conductive dispersion liquid, rolling for several times and drying at 50 deg.C. The surface resistance of the electric heating cloth is 18-25 omega/≡. The copper wire circuit inside the electric heating sheet is connected with the temperature control switch and the USB port through the wiring terminal, and the independent heating sheet is formed after the insulating waterproof cloth is covered by external hot pressing.
The electric heating sheet can respectively reach 38deg.C and 72deg.C under 5V and 9V voltage, and can be applied in the fields of electric heating shoes, electric heating eye cover, electric heating waistband, electric heating clothing, etc.
Example 3
In the preparation method of the portable low-voltage carbon nano electric heating fabric, 92 parts of aqueous carbon nano slurry in the conductive dispersion liquid, and the mass ratio of graphene slurry to carbon nano tube slurry is 7:3. 6 parts of aqueous polyurethane dispersion liquid, 0.5 part of ionic liquid dispersing agent BmimBr0.5 part of auxiliary dispersing agent fatty alcohol and ethylene oxide condensate, 0.6 part of polyoxyethylene ether penetrating agent and 0.4 part of polysiloxane defoamer. And fully mixing the slurry and the auxiliary agent in a high-speed shearing dispersing machine to form conductive dispersion liquid.
The warp of the electrothermal cloth base cloth is formed by blending 150D polyester fibers, metal wire fibers and 150D viscose fibers as weft, and the distance between the metal wires is 5cm. The electrothermal cloth is made up by dip-dyeing base cloth cut into 7X 7cm in conductive dispersion liquid, rolling for several times and drying at 50 deg.C. The surface resistance of the electric heating cloth is 10-15 omega/≡. The internal circuit of the electric heating sheet is connected with the temperature control switch and the USB port through copper wires by connecting terminals, and the detachable independent heating sheet is formed after the insulating waterproof cloth is covered by external hot pressing.
The electric heating sheet can respectively reach 44 ℃ and 82 ℃ under 5V and 9V voltage, and can be applied to the fields of electric heating shoes, electric heating eyepatches, electric heating waistbands, electric heating clothes and the like.
Example 4
In the preparation method of the portable low-voltage carbon nano electric heating fabric, 92 parts of aqueous carbon nano slurry in the conductive dispersion liquid, and the mass ratio of graphene slurry to carbon nano tube slurry is 7:3, 5 parts of aqueous polyurethane dispersion liquid, 1 part of aqueous acrylic resin dispersion liquid, 0.5 part of ionic liquid dispersing agent BmimBr0.5 part of auxiliary dispersing agent fatty alcohol and ethylene oxide condensate, 0.6 part of polyoxyethylene ether penetrating agent and 0.4 part of polysiloxane defoamer. And fully mixing the slurry and the auxiliary agent in a high-speed shearing dispersing machine to form conductive dispersion liquid.
The warp and weft of the electrothermal cloth base cloth are woven by 150D polyester fibers, and the weft is woven into conductive copper wires at a certain distance, and the distance between the metal wires is 10cm. The electrothermal cloth is made up by dip-dyeing base cloth cut to 18X 12cm in conductive dispersion liquid, rolling for several times and drying at 50 deg.C. The surface resistance of the electric heating cloth is 8-12 omega/≡. The copper wire circuit inside the electric heating sheet is connected with the temperature control switch and the USB or DC port through the wiring terminal, and the independent heating sheet which is independent and detachable is formed after the insulating waterproof cloth is covered by the external hot pressing.
The electric heating sheet can respectively heat at 30 ℃, 45 ℃ and 76 ℃ under 5V, 9V and 12V voltages, and can be applied to the fields of electric heating shoes, electric heating eyepatches, electric heating waistbands, electric heating clothes and the like.
Example 5
In the preparation method of the portable low-voltage carbon nano electric heating fabric, the content of the aqueous carbon nano slurry in the conductive dispersion liquid is 92 parts, and the mass ratio of the graphene slurry to the carbon nano tube slurry is 7:3, 5 parts of aqueous polyurethane resin dispersion, 1 part of aqueous acrylic resin dispersion, 0.5 part of ionic liquid dispersant BmimBr0.5 part of auxiliary dispersant fatty alcohol and ethylene oxide condensate, 0.6 part of polyoxyethylene ether penetrating agent and 0.4 part of polysiloxane defoamer. And fully mixing the slurry and the auxiliary agent in a high-speed shearing dispersing machine to form conductive dispersion liquid.
The warp and weft of the electrothermal cloth base cloth are woven by 150D polyester fibers, and the weft is woven into conductive copper wires at a certain distance, and the distance between the metal wires is 30cm. The electrothermal cloth is made up by dip-dyeing base cloth cut to 34X 38cm in conductive dispersion liquid, rolling for several times and drying at 50 deg.C. The surface resistance of the electric heating cloth is 8-12 omega/≡. The copper wire circuit inside the electric heating sheet is connected with the temperature control switch and the DC port through the wiring terminal, and the independent detachable heating sheet is formed after the insulating waterproof cloth is covered by external hot pressing.
The heating temperature of the electric heating sheet can reach 45 ℃ and 60 ℃ respectively under 24V and 36V voltage, and the electric heating sheet can be applied to the field of electric heating carpets.
Comparative example:
the mode of blending and weaving the electric heating fabric by adopting the conductive fiber and the common fiber is compared with the electric heating performance of the piezoelectric heating fabric in the embodiment.
The content of the aqueous carbon nano paste in the conductive dispersion liquid is 92 parts, and the mass ratio of the graphene paste to the carbon nano tube paste is 7:3, 5 parts of aqueous polyurethane resin dispersion liquid, 1 part of aqueous acrylic resin dispersion liquid, 0.5 part of ionic liquid dispersing agent, 0.5 part of auxiliary dispersing agent, 0.6 part of penetrating agent and 0.4 part of defoaming agent. And fully mixing the slurry and the auxiliary agent in a high-speed shearing dispersing machine to form conductive dispersion liquid. And uniformly coating the conductive dispersion liquid on the 150D polyester fiber to prepare the conductive fiber with the resistance of 200-400 ohm/cm. The carbon nano conductive fabric is manufactured by taking conductive fibers as warp yarns and common polyester fibers as weft yarns and weaving three copper wires into the warp yarns every 10cm. The copper wire circuit inside the electric heating sheet is connected with the temperature control switch and the USB port through the wiring terminal, and the independent detachable heating sheet is formed after the insulating waterproof cloth is covered by external hot pressing. The heating temperature of the electric heating sheet can reach 27 ℃ and 40 ℃ respectively under the voltages of 9V and 12V. Can be applied to the fields of electric heating blankets and the like.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (3)
1. The preparation method of the portable low-voltage carbon nano electric heating fabric is characterized by comprising the following steps of: dip-dyeing the electrothermal cloth substrate in conductive dispersion liquid, and then rolling and drying; covering the surface of the dried electric heating cloth with an insulating waterproof cloth or an insulating waterproof film with a PVC coating by adopting a hot melt adhesive method, and connecting an internal power-on circuit of the electric heating cloth with a temperature control switch and a USB/DC port by using a wire to form an independent washable heating sheet; wherein the conductive dispersion liquid comprises the following components in parts by weight: 88-96 parts of graphene slurry and carbon nanotube slurry, 2-10 parts of water-based resin, 1 part of ionic liquid dispersing agent and auxiliary dispersing agent, 1 part of dyeing and finishing auxiliary agent and 100-1000 mPa.s of conducting liquid viscosity;
the mass ratio of the graphene slurry to the carbon nano tube slurry is (3:7) - (7:3);
the aqueous resin is one or two of aqueous acrylic resin, epoxy resin or aqueous polyurethane, and the ionic liquid dispersing agent is BmimBr; the auxiliary dispersing agent is a condensate of fatty alcohol and ethylene oxide;
the dyeing and finishing auxiliary agent comprises a penetrating agent and a defoaming agent, wherein the penetrating agent is a polyoxyethylene ether compound, and the defoaming agent is a polysiloxane series defoaming agent;
the warp and weft of the electrothermal cloth base cloth are woven by 150D fibers, the weaving mode is that the weaving density is 20-24 pieces per cm, and the weaving mode is that the warp is woven with conductive metal wires every 5-30 cm.
2. The low-pressure carbon nano electric heating fabric prepared by the preparation method of the portable low-pressure carbon nano electric heating fabric is characterized in that: the application voltage of the low-voltage carbon nano electric heating fabric is within 5-36V, and the heating temperature is regulated at 30-82 ℃.
3. The use of the low-pressure carbon nano electric heating fabric as claimed in claim 2 in the field of electric heating clothing, electric heating waistbands, electric heating insoles or electric heating carpets.
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| CN115247010A (en) * | 2021-04-26 | 2022-10-28 | 张广彦 | Heating coating and preparation method thereof |
| CN113784468B (en) * | 2021-09-10 | 2024-03-12 | 四川普利司德高分子新材料有限公司 | Heating material and application thereof, conductive heating film and manufacturing method thereof |
| CN115584632B (en) * | 2022-09-29 | 2024-02-06 | 武汉纺织大学 | Ionic liquid gel composite fiber with high thermal voltage and preparation method thereof |
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