CN113322670B - High-conductivity organic fiber, conductive yarn, conductive fiber structure and preparation method - Google Patents
High-conductivity organic fiber, conductive yarn, conductive fiber structure and preparation method Download PDFInfo
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- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/44—Yarns or threads characterised by the purpose for which they are designed
- D02G3/441—Yarns or threads with antistatic, conductive or radiation-shielding properties
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- D06M11/36—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 oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
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- D06M11/49—Oxides or hydroxides of elements of Groups 8, 9, 10 or 18 of the Periodic System; Ferrates; Cobaltates; Nickelates; Ruthenates; Osmates; Rhodates; Iridates; Palladates; Platinates
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- 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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- D06M2101/16—Synthetic fibres, other than mineral fibres
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Abstract
The invention discloses a high-conductivity organic fiber, conductive yarn and conductive fiber structure and preparation method, which comprises the steps of coating one-dimensional conductive nano material and binder slurry dispersed in solvent on the surface of continuous fiber, controlling the size of the impregnating fiber liquid drop in the fiber coating process, realizing uniform coating of the impregnating liquid film and conductive layer on the surface of the fiber, controlling the thickness of the conductive layer, alternately coating adhesive layer slurry with certain conductivity and permeability, forming a continuous adhesive layer with a one-dimensional conductive nano material network, wherein the prepared high-conductivity fiber has good physical properties (wear resistance and extension stability), and the specific fiber resistance is 10 0 ～10 4 Ohm/cm is adjustable, high-speed continuous production is realized, the problem that the existing high-conductivity fiber cannot be comprehensively provided in the fields of good conductivity, strain conductivity stability, bending resistance, wear resistance, low cost and high production efficiency is solved, and the high-conductivity fiber has a wide application prospect in the fields of intelligent textiles, aerospace, national defense and military industry and the like.
Description
Technical Field
The invention relates to the technical field of conductive fibers, in particular to a high-conductivity organic fiber, conductive yarn, a conductive fiber structure body and a preparation method.
Background
The high conductivity of the organic fiber is endowed with important application value, the conductive organic fiber is used as the basis, various products with new performances can be manufactured in a plurality of application fields, for example, in the biomedical field, the conductive fiber with good weaving performance is used as a signal transmission line, and the conductive fiber can be manufactured into human body physiological index monitoring clothing for monitoring the surface electrocardio, blood oxygen, blood sugar and pulse of a human body in real time; in the field of consumer electronics products, the conductive fibers and infrared emission materials are compounded to prepare an infrared emission electrothermal product which is used for electrothermal clothing and indoor heating; in the field of national defense and military industry, the conductive fiber and the magnetic nano material are compounded to prepare the electromagnetic absorption material with adjustable electromagnetic absorption performance, so that a base material is provided for electromagnetic shielding and microwave stealth. The existing metal fiber or carbon fiber is limited by poor deformation and bending resistance at different degrees, the softness and spinnability are far lower than those of organic fibers, and the common application of common chemical fibers can not be achieved. In recent years, many people compound new carbon-based materials with organic fibers to prepare various conductive fibers, and a typical technology is to coat graphene or carbon nanotubes on the surface of a monofilament or a bundle of wires to form a continuous conductive layer, and as the conductive phase is mixed into a polymer, the conductivity is reduced, the thickness of the carbon nanotubes is simply increased to reach high conductivity, the abrasion resistance of the conductive layer is reduced, the bending stability is reduced, and the fiber has weak extension strain resistance.
The high-performance conductive fiber has the advantages that the high conductivity is required to be met, meanwhile, the fiber has good comprehensive performance, the processing efficiency is high, the conductivity is stable, the fiber has certain strain tolerance, the cost is low, the fineness is proper, the conductive layer is uniformly covered on the surface of a monofilament, the conductive layer is difficult to uniformly cover the surface of the monofilament by adopting a bundle wire dipping method, the high conductivity and the high production efficiency are difficult to simultaneously reach by adopting a simple carbon nano tube and a bonding layer for coating, the thickness of the carbon nano tube is increased, the bending resistance is reduced, the silver nano wire is adopted as a conductive phase, the extensibility of the pure silver nano wire is lower, the conductivity is lost by compounding with a polymer, the thickness of the composite conductive layer is increased, the silver content is increased, and the large-scale use is not facilitated. Therefore, a technical route for comprehensively solving the production efficiency, conductivity, mechanical property and quality stability is needed.
Disclosure of Invention
The invention aims to provide a preparation method of a one-dimensional nanomaterial multilayer coating continuous high-conductivity organic fiber, which aims to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme:
compared with the prior art, the invention has the beneficial effects that: the preparation method of the one-dimensional nanomaterial multilayer coating continuous high-conductivity organic fiber comprises the following steps:
sequentially passing the pretreated organic fiber core material through a plurality of glue pools; the diameter phi of the outlet liquid drop of the glue pool is less than or equal to 3D; d is the diameter of the organic fiber core material;
and, the organic fiber core material is dried before/after entering the glue pool;
at least comprises two groups of glue pools: one group of glue pools is filled with conductive adhesive slurry, and the other group of glue pools is filled with one-dimensional conductive nano material slurry.
The pretreatment here is a corona treatment in the prior art. The diameter of the fiber passing through the tip of the inlet and outlet of the glue pond is controlled, so that the diameter of the fiber is not more than 3 times of the diameter of the fiber, the thickness of the liquid layer on the surface of the fiber is lower than the Pleteau-Rayleigh destabilization thickness at a certain speed (the speed is between 0.1 and 5 m/s), discontinuous liquid drops generated by destabilization of the liquid film and non-uniformity of the dried conductive layer are inhibited, the purpose of uniformly coating a thin conductive layer on the surface of the fiber is achieved, and continuous fibers with different conductivities can be obtained by repeatedly coating and adjusting the layer number.
Based on the above-mentioned general conception of the present invention, it includes selection of materials, control of the liquid film on the surface of the fiber during high-speed coating, and continuous and high-efficiency production of the high-conductivity fiber is realized. In particular, the invention solves the inherent obstacle that the production efficiency and the conductivity can not be satisfied simultaneously in the existing high-conductivity fiber production technology.
Preferably, the conductive adhesive comprises the following components: one or two of the combination of the aqueous polyurethane and the aqueous acrylic resin, one or two of the combination of the nano carbon black and the mechanically exfoliated graphene, a defoaming agent, a wetting agent and a thickening agent;
wherein the content of carbon black is not higher than 15%, and the content of graphene is not higher than 0.3%.
Preferably, the conductive adhesive comprises the following components: 70-80 parts of waterborne polyurethane, 10-15 parts of nano conductive carbon black, 0.1-0.3 part of mechanically peeled graphene, 1 part of defoamer, 1 part of wetting agent and 1 part of thickener.
With regard to the "conductive adhesive", specifically, an adhesive with a conductive material: the kind of the binder and the conductive material are not particularly limited, and aqueous polyurethane and aqueous acrylic resin are used as only one example; nano carbon black and mechanically exfoliated graphene; the preparation can be carried out by a person skilled in the art on the basis of conventional choices. The use of "conductive adhesive" is intended to be: the binder is rendered conductive. Based on the structure of the molding material, the bonding layer formed by the conductive adhesive and the conductive layer formed by the one-dimensional conductive nano material network are similar to a parallel structure (namely, vertical conductive paths are realized while interlayer bonding is realized), so that the conductivity is improved.
Preferably, the one-dimensional conductive nano material slurry is composed of single-wall carbon nano tube slurry or silver nano wire slurry.
Preferably, the one-dimensional conductive nano material slurry further comprises deionized water, ethanol and isopropanol.
Preferably, the one-dimensional conductive nanomaterial slurry comprises an ionic surfactant. The specific implementation link is that based on the scheme, a proper amount of ionic surfactant (which can be selected by a person skilled in the art, such as sodium alkenyl sulfonate or sodium dodecyl sulfate) is added into the one-dimensional conductive nano material slurry, and the amount of the ionic surfactant is kept to be optimal between 10 and 20 percent; the one-dimensional conductive nano material slurry has certain wettability so as to improve the combination efficiency of the one-dimensional conductive nano material slurry and the adhesive, realize uniform coating (0.1-5 seconds/meter) of the conductive material under the state of rapid fiber traction, and simultaneously maintain excellent conductive performance and other physical properties.
Preferably, the device also comprises another group of glue pools which are filled with adhesive with infrared emission nano particles;
and/or;
a binder with magnetic nanoparticles.
Preferably, the infrared emission nanoparticles comprise one or a combination of several of metal nanoparticles, ferric oxide nanoparticles and tungsten doped vanadium dioxide nanoparticles;
the magnetic nanoparticles comprise nano ferroferric oxide.
Different functional particles are combined with the binder for coating purposes to impart different functional properties to the final fiber product.
Preferably, the inlet and/or the outlet of the glue pool are/is provided with coaxial vertebral tubes, and the output end ring of each vertebral tube is provided with flexible capillary cilia; the fiber is input/output from the vertebral canal in the preparation stage, and the coaxial design is adopted, so that the fiber runs smoothly and is not rubbed with the wall of the conical canal, and the friction loss of surface materials is avoided; the adoption of the flexible capillary cilia is convenient for accurately controlling the liquid drop, and the fiber is operated in the mode, so that the material permeation (adhesive and one-dimensional conductive material layer) is uniform; is also suitable for the stability characteristics of high-speed fiber passing operation, and improves the production efficiency.
Preferably, the angle of inclination of the spinal canal is 10 degrees, and the diameter of the output opening of the spinal canal is 2 mm.
The composite functional coating comprises an organic fiber core material and a composite functional coating layer at least comprising a conductive layer from inside to outside, wherein the diameter of the inner core material is between 30 and 70 microns, and the thickness of the composite functional coating layer is between 2 and 4 microns.
Preferably, the conductive layer is a multi-layered structure, and the thickness of the single layer is not more than 50 nm.
Preferably, the composite functional cladding further comprises an infrared emission characteristic layer and a magnetic layer.
Preferably, the total number of layers of the composite functional cladding is 8-30.
The organic fiber core is a continuous filament of any one of PA6, PA66 and PET, PE, PP, and has a diameter of 15D1F to 60D 1F.
The conductive yarn comprises the one-dimensional nano material and continuous high-conductivity organic fibers coated on the one-dimensional nano material in a multi-layer manner.
The conductive fiber structure comprises the conductive yarn.
These features and advantages are described in more detail in the following figures and detailed description.
Drawings
Fig. 1 is a schematic diagram of the steps for preparing the conductive fiber of the present invention.
Fig. 2 is a schematic view of a flexible capillary structure according to the present invention.
FIG. 3 is a scanning electron microscope photograph of a fiber surface carbon nanotube (left), a surface carbon nanotube partial enlargement (upper right), a surface silver nanowire partial enlargement (lower right);
fig. 4 is a graph of fiber monofilament repeated tensile stress-strain curve and resistance-strain curve.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described 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 making any inventive effort, are intended to be within the scope of the invention.
Example 1:
after carrying out corona treatment on 20D1F nylon filaments produced by a melt spinning method, referring to FIG. 1, the fibers are subjected to primary drying (the drying temperature is 110 ℃) and then enter a glue pool;
the number of the glue pools in the embodiment is 12 (named as glue pool 1-glue pool 12 according to the passing sequence of the fibers), and the glue pools are divided into four groups according to the difference of substances (namely coating) in the glue pools, wherein the first group is glue pool 1, glue pool 5 and glue pool 9-glue pool 12; the coating in the adhesive is conductive adhesive, and comprises the following specific components: 70-80 parts of waterborne polyurethane, 10-15 parts of nano conductive carbon black, 0.1-0.3 part of mechanically peeled graphene, 1 part of defoamer, 1 part of wetting agent and 1 part of thickener, and mechanically mixing;
the second group is a glue pool 2-glue pool 4 and a glue pool 6-glue pool 8, wherein the coating in the glue pool is conductive nano material slurry with ionic surfactant, and the specific components are as follows: the single-wall carbon nanotube slurry is prepared from single-wall carbon nanotube aqueous slurry produced by Chengdu chemical of Chinese academy of sciences, contains ionic surfactant, contains 0.2% of carbon nanotube, and is concentrated to 0.8% in an evaporated water phase.
With continued reference to fig. 1, a drying tube is also installed between the glue reservoirs for drying.
Referring to fig. 2, the inlet and the outlet of the glue pool are flexible capillary taper pipes, the inclination angle of the taper pipe is 10 degrees, the diameter of the output port of the taper pipe is 2 millimeters, and the output end ring of the taper pipe is provided with flexible capillary cilia; as shown in fig. 2, the inlet and outlet are at a distance of not less than 10 mm, the inlet and outlet are coaxial, and the liquid in the glue tank is circulated by a volumetric pump.
According to the embodiment, a proper amount of ionic surfactant is added into the single-wall carbon nanotube slurry, a flexible capillary coating method is adopted, the diameter of liquid drops passing through the capillary brush coating tip is controlled, so that the thickness of liquid drops on the surface of the fiber is lower than the Pleteau-Rayleigh destabilization thickness under a certain speed under the condition that the diameter of the liquid drops is not more than 3 times of the diameter of the fiber, discontinuous liquid drops generated by destabilization of a liquid film and non-uniformity of a dried conductive layer are restrained, the purpose of uniformly coating a thin conductive layer on the surface of the fiber is achieved, and the number of layers is regulated through repeated coating, so that continuous fibers with different conductivities can be obtained.
The drying temperature of the heating pipe between the glue pools is 110-130 ℃, the fiber tension is not more than 0.01N, and the speed is not more than 0.3 m/s;
after the fiber is output from the last glue pool, the fiber is rolled up after being brushed, and is dried for 20 minutes at 120 ℃, and the conductivity of the fiber monofilaments is measured, wherein the specific resistance is not higher than 20 kiloohm/cm;
in other preferred embodiments, the specific resistance is no higher than 2 kiloohms/cm when the number of glue pools is increased to 10 by the carbon nanotubes, and the total film thickness (i.e., the portion from which the fiber core is removed) is no greater than 3 microns.
Example 2: the structure in this example is the same as that in example 1, and includes the structure of the glue tank, the structure of the glue tank inlet and outlet, the structure of the drying pipe, and the setting of the drying temperature.
The difference is in the processing flow of the fiber.
Specifically, the fiber with the specific resistance of 20 kiloohms obtained by passing through the glue pond 9 and drying in the embodiment 1 is rolled, and then is processed as follows:
according to the mode of embodiment fig. 1, 10 glue pools are arranged, namely a glue pool I-glue pool X, wherein the glue pool I-glue pool III and the glue pool V-glue pool VI are respectively filled with silver nanowire paste; the silver nanowires are long nanowires prepared by a polyol method, have average diameters of less than 40 nanometers and average lengths of more than 10 micrometers, and are dispersed in 50% deionized water, 20% ethanol and 20% isopropanol solution, wherein the solution contains 10-20% of ionic surfactant;
glue cell IV and glue cell VII-glue cell X were conductive adhesives, the composition was the same as in example 1.
The fiber is rolled up after passing through the brush, is dried for 20 minutes at 120 ℃, the conductivity of the fiber monofilament is measured, the specific resistance per unit length is not higher than 100 ohm/cm,
in another preferred embodiment of the present invention, the specific resistance is not higher than 30 ohm/cm and the total film thickness is not higher than 4 microns when the number of the silver nanowire paste pools is increased to 10.
Example 3:
the structure in this example is the same as that in example 1, and includes the structure of the glue tank, the structure of the glue tank inlet and outlet, the structure of the drying pipe, and the setting of the drying temperature.
The difference is the treatment process of the fiber;
specifically, 15D1F nylon filaments produced by a melt spinning method are subjected to corona treatment. According to the form of fig. 1, the heating tube and the glue pool are passed sequentially.
The number of the glue pools is 14, and the glue pools a-n are sequentially arranged according to the passing sequence of the fibers; wherein, glue pond a, glue pond e and glue pond i all contain conductive adhesive, and its composition is: 70-80 parts of aqueous acrylic resin, 10-15 parts of nano conductive carbon black, 0.1-0.3 part of mechanically peeled graphene, 1 part of defoamer, 1 part of wetting agent, 1 part of thickener and mechanical mixing.
The glue pool b-glue pool d and the glue pool f-glue pool h are all filled with the same single-walled carbon nanotube slurry as in the embodiment 1;
the glue pool j-glue pool m is filled with the same silver nanowire slurry as in the embodiment 2, the glue pool n is filled with an aqueous acrylic resin binder containing copper, zinc nanoparticles or ferric oxide nanoparticles or tungsten doped vanadium dioxide nanoparticles, the binder comprises 60-70 parts of aqueous acrylic resin, 5-10 parts of nano conductive carbon black, 0.1-0.3 part of mechanically peeled graphene, 15-20 parts of total amount of one or more combination of copper, zinc nanoparticles or ferric oxide nanoparticles or tungsten doped vanadium dioxide nanoparticles, 1 part of defoaming agent, 1 part of wetting agent, 1 part of thickening agent and mechanical mixing.
In this example, an aqueous acrylic binder containing copper, zinc, or ferric oxide nanoparticles, or tungsten doped vanadium dioxide nanoparticles was added, with the aim that the fibers had current controlled infrared emission characteristic adjustment when infrared emission nanoparticles were added.
After the fiber passes through all glue pools, the fiber is brushed and rolled up, and is dried for 20 minutes at 120 ℃, the conductivity of the fiber monofilaments is measured, the specific resistance is not higher than 300 ohm/cm, and the total film thickness is not higher than 4 microns.
Example 4
The structure in this example is the same as that in example 1, and includes the structure of the glue tank, the structure of the glue tank inlet and outlet, the structure of the drying pipe, and the setting of the drying temperature.
The difference is the treatment process of the fiber;
after carrying out corona treatment on 15D1F nylon filaments produced by a melt spinning method, sequentially passing through a heating pipe and a glue pool according to the form of FIG. 1;
in the embodiment, 14 glue pools are arranged, and the difference between the glue pool n in the embodiment 3 and the embodiment 3 is that an aqueous acrylic resin binder containing copper, zinc nano particles, or ferroferric oxide nano particles or tungsten doped vanadium dioxide nano particles in the glue pool n is replaced by an aqueous polyurethane and aqueous acrylic resin mixed binder containing ferroferric oxide nano particles, wherein the binder comprises 10-20 parts of aqueous polyurethane, 40-50 parts of aqueous acrylic resin, 5-10 parts of nano conductive carbon black, 0.1-0.3 part of mechanically peeled graphene, 15-20 parts of ferroferric oxide nano particles, 1 part of defoaming agent, 1 part of wetting agent, 1 part of thickening agent and mechanical mixing.
The adjustable magnetism of the fiber is realized by adding magnetic nano particles (namely, ferroferric oxide nano particles with the size smaller than 10 nanometers) to the fiber; the adjustability can be achieved by the degree of layering of the coating.
In all the embodiments, the key point of the invention for preparing the carbon nano tube and graphene conductive fiber by other coating methods is that the polymer is not doped in the carbon nano tube or silver nano wire slurry for improving the adhesiveness of the conductive layer;
referring to fig. 3, the core of improving the adhesion of the conductive layer is to control the thickness of the liquid drops so that the bonding layer slurry with certain conductivity and permeability can permeate into the gaps of the one-dimensional nano material network to form a continuous bonding layer; the thickness of the bonding layer is regulated to ensure that the fiber conductivity is not excessive due to the bonding layer loss, the thickness of the whole conductive layer is lower than 4 microns, and the specific resistance of the fiber is between tens of ohms and thousands of ohms (100-10) 4 Ohm/cm), the resistance is reduced by increasing the thickness of the conductive layer and the number of silver nanowire layers, and the defects that the continuous organic conductive fiber coated with the conductive layer has high conductivity, wear resistance and difficult continuity are commonly existed are overcome.
In addition, in order to obtain the functionalized fiber with designable performance, different nano particles can be added into the surface layer of the fiber, when the infrared emission nano particles are added, the fiber has current control infrared emission characteristic adjustment, and when the ferromagnetic nano particles are added, the fiber has current control ferromagnetic paramagnetic transformation characteristic.
The final product fiber is coated with a conductive layer outside the organic fiber core material, an interlayer combined conductive bonding layer (mainly composed of a conductive adhesive) and a surface functional layer (such as an infrared emission nano layer and a magnetic layer). The total number of layers is between 8 and 30 layers, the organic fiber core material refers to continuous filaments of any one of PA6, PA66 and PET, PE, PP, the diameter is between 15D1F and 60D1F, and the thickness of other layers is between 2 and 4 microns. Wherein the monolayer of the conductive layer has a thickness of no more than 50 nanometers.
Referring again to FIG. 4, the final finished fiber, which is corrosion resistant, is immersed in 30% brine for 1000 hours and has a resistance change of less than 5% after drying; the alloy has bending resistance, bending curvature is 1 mm, bending is carried out 105 times, and resistance increase is lower than 10%; has repeated stretching resistance, 30% stretching and 100 times stretching, and the resistance increase is less than 10%.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The preparation method of the one-dimensional nanomaterial multilayer coating continuous high-conductivity organic fiber is characterized by comprising the following steps of: the method comprises the following steps:
sequentially passing the pretreated organic fiber core material through a plurality of glue pools, wherein the diameter phi of outlet liquid drops of the glue pools is less than or equal to 3D, D is the diameter of the organic fiber core material, flexible capillary cilia are arranged at the outlet of the glue pools, through which fibers pass, coaxial vertebral tubes are arranged at the inlet and the outlet of the glue pools, and the flexible capillary cilia are arranged on the vertebral tubes;
the traction speed of the fiber is between 0.1 m/s and 5 m/s;
and, the organic fiber core material is dried before/after entering the glue pool;
at least comprises two groups of glue pools: one group of glue pools is filled with conductive adhesive slurry, and the other group of glue pools is filled with one-dimensional conductive nano material slurry;
finally, a composite functional cladding comprising a conductive layer is formed outside the organic fiber core material, and the thickness of the composite functional cladding is between 2 and 4 mu m.
2. The method for preparing the one-dimensional nanomaterial multilayer coating continuous high-conductivity organic fiber according to claim 1, characterized in that: the conductive adhesive slurry comprises the following components: one or the combination of the aqueous polyurethane and the aqueous acrylic resin, nano carbon black and mechanically peeled graphene, a defoaming agent, a wetting agent and a thickening agent.
3. The method for preparing the one-dimensional nanomaterial multilayer coating continuous high-conductivity organic fiber according to claim 1, characterized in that: the one-dimensional conductive nano material slurry is single-wall carbon nano tube slurry or a mixed solution of silver nanowire water and isopropanol.
4. A method for preparing a one-dimensional nanomaterial multilayer coated continuous highly conductive organic fiber as claimed in claim 1 or 3, characterized in that: the one-dimensional conductive nano material slurry comprises an ionic surfactant.
5. The method for preparing the one-dimensional nanomaterial multilayer coating continuous high-conductivity organic fiber according to claim 1, characterized in that: the adhesive pool is provided with an adhesive with infrared emission nano particles;
and/or;
a binder with magnetic nanoparticles.
6. The one-dimensional nanomaterial multilayer coating continuous high-conductivity organic fiber is characterized in that: prepared by the preparation method according to any one of claims 1 to 5;
the composite functional coating comprises an organic fiber core material and a composite functional coating layer at least comprising a conductive layer from inside to outside, wherein the diameter of the inner core material is between 30 and 70 mu m, and the thickness of the composite functional coating layer is between 2 and 4 mu m.
7. The one-dimensional nanomaterial multilayer coated continuous highly conductive organic fiber of claim 6, wherein: the composite functional cladding further includes an infrared emission characteristic layer and a magnetic layer.
8. Conductive yarn, its characterized in that: a one-dimensional nanomaterial comprising the multilayer coated continuous highly conductive organic fiber of claim 6 or 7.
9. An electrically conductive fibrous structure, characterized in that: comprising the electrically conductive yarn of claim 8.
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