CN114150498B - Method for reducing contact resistance of conductive yarn of carbon nanotube coating - Google Patents

Method for reducing contact resistance of conductive yarn of carbon nanotube coating Download PDF

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CN114150498B
CN114150498B CN202111398401.3A CN202111398401A CN114150498B CN 114150498 B CN114150498 B CN 114150498B CN 202111398401 A CN202111398401 A CN 202111398401A CN 114150498 B CN114150498 B CN 114150498B
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yarn
carbon nanotube
conductive
drying
coating
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CN114150498A (en
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朱子玉
房宽峻
张磊
张靖宇
高晶
张志祥
刘思雨
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Shandong Huanghe Delta Institute Of Textile Science And Technology Co ltd
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Shandong Huanghe Delta Institute Of Textile Science And Technology Co ltd
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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
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/83—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with metals; with metal-generating compounds, e.g. metal carbonyls; Reduction of metal compounds on textiles
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • 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
    • 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
    • D06M15/507—Polyesters
    • 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
    • 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
    • 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
    • D06M15/647—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain containing polyether sequences
    • 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
    • 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
    • D06M2101/34—Polyamides

Abstract

The invention relates to a method for reducing contact resistance of conductive yarn of carbon nanotube coating, which takes nylon or terylene air textured yarn as a matrix, and comprises the process flows of matrix yarn, coating treatment slurry coating treatment, drying and curing, post-treatment liquid treatment and drying and shaping. According to the invention, the contact area between the carbon nanotube coating conductive yarn and the interwoven metal wire electrode is increased by using the air textured yarn surface ring or the semicircular yarn ring, the conductive capability of the conductive material and the resin composite film layer is improved by the high-conductivity nano silver particles distributed on the surface and in the coating, and meanwhile, the probability of mutual contact between fibers in the yarn is increased, so that the concentrated resistance between the carbon nanotube coating conductive yarn and the interwoven metal wire electrode due to uneven yarn surface and the contact resistance mainly formed by the film layer resistance generated by the chemicals with poor conductivity in the yarn are reduced. The invention has simple operation and easy production control.

Description

Method for reducing contact resistance of conductive yarn of carbon nanotube coating
Technical Field
The invention relates to a production method of conductive yarns, in particular to a method for reducing contact resistance of conductive yarns with carbon nanotube coatings.
Background
In recent years, with the vigorous development of technological innovation, new technology and new materials, the brand new research and development field of intelligent textile products, which integrates the basic subjects of traditional textile technology, artificial intelligence, physical chemistry and the like, is sharing the industrial interest brought by the research and development field. Meanwhile, people's attention to self health also provides infinite vitality for the development of intelligent wearable far infrared technology and products. The carbon nanotube coating conductive yarn has high-efficiency far infrared emission capability, far infrared rays with the emitted wavelength of 5.6-15 mu m are overlapped with the wavelength (8-14 mu m) emitted by a human body, and the far infrared rays can play roles in improving the blood circulation of the human body and promoting metabolism, so that the carbon nanotube coating conductive yarn meets the consumption requirements of health and health care. However, due to the characteristics of the surface roughness of the yarns and the use of non-conductive chemicals in the coating, the yarns have significant contact resistance problems after being interwoven with metal wires, and are severely limited by the woven structure.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a method for reducing the contact resistance of the conductive yarn with the carbon nano tube coating, and the method is simple to operate and easy to produce and control.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a method for reducing contact resistance of carbon nanotube coating conductive yarn comprises the following production process flows: base yarn, coating treatment slurry coating treatment, drying and curing, post-treatment liquid treatment, drying and shaping, wherein the base yarn is nylon or terylene air textured yarn;
further, the coating treatment slurry comprises the following components in parts by weight:
carbon nanotube conductive paste 60-85
0.1 to 3 percent of nano silver particles
10-25 parts of resin
The balance of water.
The carbon nano tube is a conductive material, and is coated and fixed on the air textured yarn matrix after forming composite slurry with resin, and nano silver particles distributed on the surface and inside of the coating are used as conductive reinforcing materials of the film layer.
The particle size of the nano silver particles is 20-300nm, and the nano silver particles are one or more of spherical, polyhedral or dendritic.
The resin is one of polyacrylic resin, polyester resin, organosilicon modified acrylic resin, polyurethane resin and epoxy resin.
The drying and curing conditions are as follows: the drying temperature is 60-80 ℃, the drying time is 30-120s, and the moisture content of the yarn is controlled to be 10-20%.
The post-treatment liquid comprises the following components in parts by weight:
0.1-10 portions of carbon nanotube conductive paste
Polyether block modified amino silicone oil 0.5-45
The balance of water.
Meanwhile, the invention also provides a step of conducting yarn post-treatment by using the post-treatment liquid:
a. firstly, preparing a diluted solution of polyether block modified amino silicone oil: adding purified water and polyether block modified amino silicone oil into a container in sequence, and stirring until the mixture is a uniform transparent solution for standby;
b. adding the carbon nanotube conductive paste into the solution, stirring and adding, and uniformly mixing for later use;
c. immersing the carbon nano tube coating conductive yarn in the solution for 30-120s, and then taking out the yarn for drying and shaping;
the drying and shaping temperature is 160-230 ℃ and the time is 20-60s.
According to the invention, the contact area between the carbon nanotube coating conductive yarn and the interwoven metal wire electrode is increased by using the air textured yarn surface ring or the semicircular yarn ring, the conductive capability of the conductive material and the resin composite film layer is improved by the high-conductivity nano silver particles distributed on the surface and the inside of the coating, and meanwhile, the probability of mutual contact between fibers in the yarn is increased, so that more fibers are communicated with each other to form effective conductive connection. The conductive yarn is subjected to aftertreatment by adopting a solution containing the carbon nanotube conductive paste and the polyether block modified amino silicone oil, so that the softness of the yarn is improved, meanwhile, the distribution of the carbon nanotube conductive material on the surface of the conductive yarn is increased, and the contact site and the area between the conductive yarn and a metal wire are further increased, so that the concentrated resistance between the carbon nanotube coating conductive yarn and an interweaved metal wire electrode due to the uneven surface of the yarn and the contact resistance mainly formed by the film resistance generated by chemicals with poor conductivity in the yarn are reduced, and the aim of reducing the contact resistance of the carbon nanotube coating conductive yarn is fulfilled.
The beneficial effects of the invention are that
According to the invention, the contact area between the carbon nanotube coated conductive yarn and the interwoven metal wire electrode is increased by utilizing the air textured yarn surface loop or the semicircular yarn loop, the conductive yarn is subjected to post-treatment by the solution containing the carbon nanotube conductive paste and the polyether block modified amino silicone oil, the softness of the yarn is improved, the deformability of the conductive yarn in a weaving structure is improved, meanwhile, the distribution of conductive materials on the surface of the yarn is increased, the contact site and the contact area between the conductive yarn and the metal wire are further improved, and in addition, the conductive reinforcing material of the film layer is formed by nano silver particles with different particle diameters, so that the probability of mutual contact between fibers in the yarn is increased. Through the distribution design and the synergy of the functional components, the contact resistance of the conductive yarn of the carbon nano tube coating is reduced. Meanwhile, the invention has simple operation and easy production control.
Detailed Description
The present invention will be described in further detail by way of the following specific examples, which are not intended to limit the scope of the invention.
A method for reducing contact resistance of carbon nanotube coating conductive yarn comprises the following production process flows: base yarn, coating treatment slurry coating treatment, drying and curing, post-treatment liquid treatment, drying and shaping, wherein the base yarn is nylon or terylene air textured yarn;
the coating treatment slurry comprises the following components in parts by weight:
carbon nanotube conductive paste 60-85
0.1 to 3 percent of nano silver particles
10-25 parts of resin
The balance of water.
The carbon nano tube is a conductive material, and is coated and fixed on the air textured yarn matrix after forming composite slurry with resin, and nano silver particles distributed on the surface and inside of the coating are used as conductive reinforcing materials of the film layer.
The particle size of the nano silver particles is 20-300nm, and the nano silver particles are one or more of spherical, polyhedral or dendritic.
The resin is one of polyacrylic resin, polyester resin, organosilicon modified acrylic resin, polyurethane resin and epoxy resin.
The drying and curing conditions are as follows: the drying temperature is 60-80 ℃, the drying time is 30-120s, and the moisture content of the yarn is controlled to be 10-20%.
The post-treatment liquid comprises the following components in parts by weight:
0.1-10 portions of carbon nanotube conductive paste
Polyether block modified amino silicone oil 0.5-45
The balance of water.
Meanwhile, the invention also provides a step of conducting yarn post-treatment by using the post-treatment liquid:
a. firstly, preparing a diluted solution of polyether block modified amino silicone oil: adding purified water and polyether block modified amino silicone oil into a container in sequence, and stirring until the mixture is a uniform transparent solution for standby;
b. adding the carbon nanotube conductive paste into the solution, stirring and adding, and uniformly mixing for later use;
c. immersing the carbon nano tube coating conductive yarn in the solution for 30-120s, and then taking out the yarn for drying and shaping;
the drying and shaping temperature is 160-230 ℃ and the time is 20-60s.
The weight parts of the components in the examples are shown in Table 1.
Table 1 weight part ratio of the respective Components in the examples
Example 1
The auxiliary agent of the embodiment 1 in the embodiment of the first group of coating treatment slurry and the post-treatment liquid is selected, and the nylon textured yarn base yarn is prepared by the following steps: the process flow of the base yarn, the coating treatment slurry coating treatment, the drying and curing, the post-treatment liquid treatment and the drying and shaping is carried out for conducting yarn production, the drying temperature is 80 ℃, the drying time is 90 seconds, and the moisture content of the yarn is controlled to be 10%.
Immersing the carbon nanotube coating conductive yarn in the prepared post-treatment liquid for 30s, and then taking out the carbon nanotube coating conductive yarn for drying and shaping; and (3) drying and shaping at 230 ℃ for 20s, and obtaining the carbon nanotube coating conductive yarn with reduced contact resistance after the drying and shaping are completed.
The conductive yarn produced by the process is woven into a conductive fabric according to a plain weave structure, the conductive yarn is used as weft yarn, the warp yarn is selected from common polyester or nylon yarn, the metal wire electrodes are arranged at intervals of 5cm along the warp direction, the resistance between the metal wire electrodes of the heating plate consisting of 50 weft yarns is tested, so that the theoretical resistance of the conductive yarn is calculated, and the difference between the theoretical resistance and the actual resistance of the conductive yarn is the contact resistance of the yarn, and the result is shown in Table 2.
Example 2
The auxiliary agent of the example 2 in the second group of coating treatment slurry and post-treatment liquid example is selected, and the nylon textured yarn base yarn is prepared according to the following steps: the process flow of the base yarn, the coating treatment slurry coating treatment, the drying and curing, the post-treatment liquid treatment and the drying and shaping is carried out for producing the conductive yarn, the drying temperature is 70 ℃, the drying time is 100s, and the moisture content of the yarn is controlled to be 12%.
Immersing the carbon nanotube coating conductive yarn in the prepared post-treatment liquid for 30s, and then taking out the carbon nanotube coating conductive yarn for drying and shaping; and (3) drying and shaping at 200 ℃ for 35s, and obtaining the carbon nanotube coating conductive yarn with reduced contact resistance after finishing drying and shaping.
The conductive yarn produced by the process is woven into a conductive fabric according to a plain weave structure, the conductive yarn is used as weft yarn, the warp yarn is selected from common polyester or nylon yarn, the metal wire electrodes are arranged at intervals of 5cm along the warp direction, the resistance between the metal wire electrodes of the heating plate consisting of 50 weft yarns is tested, so that the theoretical resistance of the conductive yarn is calculated, and the difference between the theoretical resistance and the actual resistance of the conductive yarn is the contact resistance of the yarn, and the result is shown in Table 2.
Example 3
The auxiliary agent of the embodiment 3 in the embodiment of the third group of coating treatment slurry and the post-treatment liquid is selected, and the nylon textured yarn base yarn is prepared by the following steps: the process flow of the base yarn, the coating treatment slurry coating treatment, the drying and curing, the post-treatment liquid treatment and the drying and shaping is carried out for producing the conductive yarn, the drying temperature is 60 ℃, the drying time is 120s, and the moisture content of the yarn is controlled to be 12%.
Immersing the carbon nano tube coating conductive yarn in the prepared post-treatment liquid for 60s, and then taking out the yarn for drying and shaping; and (3) drying and shaping at 230 ℃ for 30s, and obtaining the carbon nanotube coating conductive yarn with reduced contact resistance after the drying and shaping are completed.
The conductive yarn produced by the process is woven into a conductive fabric according to a plain weave structure, the conductive yarn is used as weft yarn, the warp yarn is selected from common polyester or nylon yarn, the metal wire electrodes are arranged at intervals of 5cm along the warp direction, the resistance between the metal wire electrodes of the heating plate consisting of 50 weft yarns is tested, so that the theoretical resistance of the conductive yarn is calculated, and the difference between the theoretical resistance and the actual resistance of the conductive yarn is the contact resistance of the yarn, and the result is shown in Table 2.
Example 4
The auxiliary agent of the example 4 in the fourth group of coating treatment slurry and post-treatment liquid example is selected, and the nylon textured yarn base yarn is prepared according to the following steps: the process flow of the base yarn, the coating treatment slurry coating treatment, the drying and curing, the post-treatment liquid treatment and the drying and shaping is carried out for producing the conductive yarn, the drying temperature is 80 ℃, the drying time is 120s, and the moisture content of the yarn is controlled to be 10%.
Immersing the carbon nano tube coating conductive yarn in the prepared post-treatment liquid for 60s, and then taking out the yarn for drying and shaping; and (3) drying and shaping at 180 ℃ for 120s, and obtaining the carbon nanotube coating conductive yarn with reduced contact resistance after the drying and shaping are completed.
The conductive yarn produced by the process is woven into a conductive fabric according to a plain weave structure, the conductive yarn is used as weft yarn, the warp yarn is selected from common polyester or nylon yarn, the metal wire electrodes are arranged at intervals of 5cm along the warp direction, the resistance between the metal wire electrodes of the heating plate consisting of 50 weft yarns is tested, so that the theoretical resistance of the conductive yarn is calculated, and the difference between the theoretical resistance and the actual resistance of the conductive yarn is the contact resistance of the yarn, and the result is shown in Table 2.
Comparative example
The matrix yarn is drawn textured yarn or fully drawn yarn of terylene or chinlon, and the production process flow is as follows: base yarn, coating treatment, drying and shaping, wherein the coating treatment slurry only comprises carbon nanotube conductive slurry and resin, and the contact resistance of the yarn is tested in the same manner as in example 1/2/3/4, and the results are shown in Table 2.
Table 2 comparison of results of testing contact resistance of conductive yarns in examples and comparative examples
The above description is merely an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present invention, and it should be covered in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (6)

1. A method for reducing contact resistance of carbon nanotube coating conductive yarn is characterized by comprising the following production process flows: base yarn, coating treatment slurry coating treatment, drying and curing, post-treatment liquid treatment, drying and shaping, wherein the base yarn is nylon or terylene air textured yarn;
the coating treatment slurry comprises the following components in parts by weight:
the carbon nano tube is a conductive material, and is coated and fixed on the air deformation wire matrix through resin, and nano silver particles distributed on the surface and inside of the coating are used as conductive reinforcing materials of the film layer;
the post-treatment liquid comprises the following components in parts by weight:
0.1-10 portions of carbon nanotube conductive paste
Polyether block modified amino silicone oil 0.5-45
The balance of water.
2. The method for reducing contact resistance of carbon nanotube coated conductive yarns according to claim 1, wherein the nano silver particles have a particle size of 20-300nm and are one or more of spherical, polyhedral or dendritic shapes.
3. The method for reducing contact resistance of carbon nanotube coated conductive yarns of claim 1, wherein the resin is one of a polyacrylic resin, a polyester resin, a silicone modified acrylic resin, a polyurethane resin, and an epoxy resin.
4. The method for reducing contact resistance of carbon nanotube coated conductive yarns of claim 1, wherein the drying and curing conditions are: the drying temperature is 60-80 ℃, the drying time is 30-120s, and the moisture content of the yarn is controlled to be 10-20%.
5. The method for reducing contact resistance of carbon nanotube coated conductive yarns of claim 1 wherein the post-treatment comprises the steps of:
a. firstly, preparing a diluted solution of polyether block modified amino silicone oil: adding purified water and polyether block modified amino silicone oil into a container in sequence, and stirring until the mixture is a uniform transparent solution for standby;
b. adding the carbon nanotube conductive paste into the solution, stirring and adding, and uniformly mixing for later use;
c. immersing the carbon nano tube coating conductive yarn in the solution for 30-120s, and then taking out for drying and shaping.
6. The method for reducing contact resistance of carbon nanotube coated conductive yarns of claim 1, wherein the drying and sizing temperature is 160-230 ℃ for 20-60s.
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