CN110699962B - Preparation method of superfine fiber synthetic leather with electric heating function - Google Patents

Preparation method of superfine fiber synthetic leather with electric heating function Download PDF

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CN110699962B
CN110699962B CN201910974616.1A CN201910974616A CN110699962B CN 110699962 B CN110699962 B CN 110699962B CN 201910974616 A CN201910974616 A CN 201910974616A CN 110699962 B CN110699962 B CN 110699962B
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synthetic leather
superfine fiber
fiber synthetic
pyrrole
electric heating
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CN110699962A (en
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钱国春
包旭旭
王亚停
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Zhejiang Meisheng New Materials Co ltd
ZHEJIANG MEISHENG INDUSTRY CO LTD
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Zhejiang Meisheng New Materials Co ltd
ZHEJIANG MEISHENG INDUSTRY CO LTD
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    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G73/00Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
    • C08G73/06Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
    • C08G73/0605Polycondensates containing five-membered rings, not condensed with other rings, with nitrogen atoms as the only ring hetero atoms
    • C08G73/0611Polycondensates containing five-membered rings, not condensed with other rings, with nitrogen atoms as the only ring hetero atoms with only one nitrogen atom in the ring, e.g. polypyrroles
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06BTREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B3/00Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating
    • D06B3/10Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/16Synthetic fibres, other than mineral fibres
    • D06M2101/30Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M2101/32Polyesters
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/16Synthetic fibres, other than mineral fibres
    • D06M2101/30Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M2101/38Polyurethanes
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product
    • Y02P70/62Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)

Abstract

The invention discloses a preparation method of superfine fiber synthetic leather with an electric heating function, which comprises the following steps: 1) taking superfine fiber synthetic leather to immerse into a pyrrole monomer; 2) washing pyrrole monomers adsorbed on the surface of the superfine fiber synthetic leather by using ethanol; 3) preparing an oxidant aqueous solution for initiating pyrrole polymerization, and carrying out ultrasonic treatment for 10-30 min; 4) immersing the superfine fiber synthetic leather into an oxidant aqueous solution; 5) washing the surface of the superfine fiber synthetic leather with ethanol, and vacuum drying at 50-70 deg.C for 8-12 h. The invention selects the island-shaped superfine fiber synthetic leather consisting of polyester and waterborne polyurethane as a matrix for pyrrole in-situ polymerization, does not use any organic solvent in the whole preparation process, and meets the requirement of people on low VOC of high-end superfine fiber synthetic leather products. In addition, when the matrix is electrically heated in the later period, organic micromolecules volatilized by the matrix due to heating can be prevented, and harm to the health of people is reduced.

Description

Preparation method of superfine fiber synthetic leather with electric heating function
Technical Field
The invention belongs to the technical field of preparation of superfine fiber synthetic leather, and particularly relates to a preparation method of superfine fiber synthetic leather with an electric heating function.
Background
The natural leather product has the advantages of good water vapor permeability, strong moisture absorption performance and the like, meets the wearing requirements of people, and is popular with people all the time since ancient times. However, with the increasing awareness of environmental protection, the development of synthetic leather with excellent performance is more and more urgent. The superfine fiber synthetic leather is very similar to natural leather in appearance and performance, and even superior to the natural leather in physical and mechanical properties, so that the superfine fiber synthetic leather has attracted wide attention in the industry in recent years, replaces abundant natural leather with insufficient resources, and has wide application prospect in the aspects of manufacturing bags, clothing, shoes, vehicle interiors and the like. At present, most of domestic superfine fiber synthetic leather enterprises utilize Polyamide (PA) and low-density polyethylene (LDPE) as raw materials to prepare island-in-sea fibers by a blending spinning technology, and then prepare superfine fiber synthetic leather by impregnating polyurethane. And a small number of enterprises also utilize a composite spinning technology to prepare the Polyester (PET) or PA6 and the easily hydrolyzed polyester (EHDPET) into more environment-friendly island-shaped sea-island fibers, and then prepare the island-shaped superfine fiber synthetic leather from the water-immersed polyurethane. Although superfine fiber synthetic leather with various functions exists in the market at present, most products have single functions and are low in end, and the requirements of people on high-end superfine fiber synthetic leather products cannot be met.
Polypyrrole is one of the most widely researched conductive polymer materials with excellent application prospects, has the advantages of mild preparation conditions, high conductivity, no toxicity, low price, good stability and the like, and is widely concerned as a flexible heating element in recent years. Compared with conductive fillers such as carbon fibers, carbon nanotubes and the like, the polypyrrole can be used as a heating element, further processing is not needed after preparation, and the requirement for large-scale production can be met. However, polypyrrole has the disadvantages of being insoluble, non-fusible, and poor in mechanical properties, which makes it easy to fall off or break from the substrate when used as a heating element, thereby affecting the electrical heating performance of the material.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a preparation method of superfine fiber synthetic leather with an electric heating function.
The technical scheme adopted by the invention for solving the technical problems is as follows: a preparation method of superfine fiber synthetic leather with an electric heating function comprises the following steps:
1) soaking superfine fiber synthetic leather with 20-50 wt% of polyurethane into pyrrole monomer at 10-30 ℃ for 10-50min, wherein the mass ratio of the superfine fiber synthetic leather to the pyrrole monomer is 5-15: 85-95;
2) washing pyrrole monomers adsorbed on the surface of the superfine fiber synthetic leather by using ethanol;
3) preparing an oxidant aqueous solution for initiating pyrrole polymerization, and carrying out ultrasonic treatment for 10-30min, wherein the concentration of the oxidant aqueous solution is 0.1-0.5 mol/L;
4) immersing the superfine fiber synthetic leather obtained in the step 2) into the oxidant aqueous solution obtained in the step 3), wherein the immersion temperature is 0-4 ℃, and the immersion time is 2-4 h;
5) washing the surface of the superfine fiber synthetic leather obtained in the step 4) with ethanol, and then placing the superfine fiber synthetic leather at the temperature of 50-70 ℃ for vacuum drying for 8-12 hours to obtain the synthetic leather.
Preferably, 0.1 to 0.5mol/L of doping agent is doped in the oxidant aqueous solution in the step 3), and the doping agent is sodium benzene sulfonate or sodium p-toluene sulfonate or sodium dodecyl benzene sulfonate.
Preferably, the dopant concentration is 0.2 to 0.4 mol/L.
Preferably, the polyurethane content in the superfine fiber synthetic leather is 30-40 wt%.
Preferably, the dipping temperature in the step 1) is 15-25 ℃, and the dipping time is 20-40 min.
Preferably, the oxidant in step 3) is FeCl3Or H2O2Or (NH)4)2S2O8Or K2Cr2O7The concentration of the oxidant is 0.2-0.4 mol/L.
Preferably, the superfine fiber synthetic leather is island-shaped superfine fiber synthetic leather.
The invention firstly takes island type superfine fiber synthetic leather consisting of polyester and waterborne polyurethane as a substrate, and utilizes the difference of molecular chain aggregation states of a soft segment and a hard segment in a polyurethane molecular chain in the island type superfine fiber synthetic leather, so that pyrrole monomers enter the soft segment part of the polyurethane through swelling but cannot enter the hard segment part of the polyurethane, and the hard segment of the polyurethane keeps a cross-linking state in the polyurethane, so that the polyurethane is not dissolved in a pyrrole solution. The pyrrole can form polypyrrole in situ in the polyurethane under the action of the oxidant, and the polyurethane is used as a polymeric matrix, so that the problem of poor mechanical property of the polypyrrole is effectively solved. After polypyrrole forms a continuous network in polyurethane, the superfine fiber synthetic leather prepared by the method has electric heating performance due to the conductivity of the polypyrrole. The polypyrrole prepared by the method is polymerized in situ in the polyurethane, and the polyurethane is used as a marine phase in the superfine fiber synthetic leather, has good mechanical properties, and can effectively solve the defect of poor mechanical properties of the polypyrrole. Because the pyrrole monomer can not swell the polyester superfine fiber, the pyrrole can only be polymerized in the polyurethane, so that the hand feeling and the wearing comfort of the superfine fiber synthetic leather are not influenced. The superfine fiber synthetic leather prepared by the method has better electric heating performance under the external voltage and has wide application prospect.
The invention has the beneficial effects that:
(1) the invention selects the island-shaped superfine fiber synthetic leather consisting of polyester and waterborne polyurethane as the matrix of pyrrole in-situ polymerization, and the whole preparation process does not use any organic solvent, thereby meeting the requirement of people on low VOC of high-end superfine fiber synthetic leather products at present. In addition, when the substrate is electrically heated in the later period, organic micromolecules volatilized by the substrate due to heating can be prevented, and the harm to the health of people is reduced;
(2) according to the invention, through in-situ polymerization of polypyrrole in polyurethane, on one hand, the problem of poor mechanical property of polypyrrole can be effectively solved, so that the polypyrrole is prevented from being broken or fractured in the actual use process; on the other hand, the polypyrrole obtained by polymerizing the superfine fiber synthetic leather can endow the superfine fiber synthetic leather with electric conductivity, and can be used as an electric heating element in the aspects of clothes, sofas, mattresses and the like under the action of an external electric field, so that the additional value of the superfine fiber synthetic leather is greatly improved;
(3) the polypyrrole is obtained only by in-situ polymerization in the polyurethane in the superfine fiber synthetic leather, so that the polyester superfine fiber in the superfine fiber synthetic leather is hardly influenced, and the characteristics of the superfine fiber synthetic leather can be still kept;
(4) the method for preparing the superfine fiber synthetic leather with the electric heating function is simple, low in cost and easy to popularize on a large scale, and the application field of the superfine fiber synthetic leather can be greatly expanded;
(5) after the superfine fiber synthetic leather prepared by the invention is connected with the solar cell panel, the electric energy of the solar cell panel can be converted into heat energy in the presence of sunlight without additionally providing voltage, and the whole process is clean and pollution-free and does not generate any harmful substance. Therefore, the self-powered heating element prepared by the method can be applied to human body heating under a cold condition, and has great application prospect.
Drawings
FIG. 1 shows the superfine fiber synthetic leather with electric heating function prepared by the invention.
Figure 2 is a schematic of a self-powered heating element made in accordance with the present invention.
FIG. 3 shows the electrothermal conversion performance of the superfine fiber synthetic leather with electric heating function prepared by the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Preparing the figured superfine fiber synthetic leather: firstly, removing sea phase (water-soluble polyester) from polyester/water-soluble polyester superfine fiber or polyamide/water-soluble polyester superfine fiber in NaOH solution to obtain polyester or polyamide superfine fiber, then soaking the superfine fiber in water-soluble polyurethane, and drying to obtain the figured superfine fiber synthetic leather. (the above specific preparation process parameters are prior art and will not be described in detail.)
Example 1
Preparation of superfine fiber synthetic leather with electric heating function
Soaking 5g of island type superfine fiber synthetic leather with 30 wt% of polyurethane in 95g of pyrrole monomer at 15 ℃ for 20 min;
taking out the superfine fiber synthetic leather impregnated with the pyrrole monomer, and washing the pyrrole monomer adsorbed on the surface of the island type superfine fiber synthetic leather with ethanol for 3 times;
FeCl for initiating pyrrole polymerization was then formulated3Solution of FeCl3The concentration of the sodium benzenesulfonate is 0.2mol/L, and simultaneously the sodium benzenesulfonate with the concentration of 0.2mol/L is added, and ultrasonic treatment is carried out for 10 min;
finally, immersing the fixed island type superfine fiber synthetic leather washed by the ethanol into the FeCl-containing synthetic leather3And sodium benzenesulfonate aqueous solution, soaking at 0 deg.C for 2 hr, taking out the island-shaped superfine fiber synthetic leather, washing with ethanol for 3 times, drying in 50 deg.C vacuum oven for 8 hr to obtain superfine fiber synthetic leather with electric heating function, and applying external voltage of 7V to obtain the final product with electric heating performance shown in FIG. 3.
Preparation of electric heating device
The invention utilizes the superfine fiber synthetic leather after in-situ polymerization of polypyrrole to prepare the self-powered heating device, and the specific preparation method comprises the following steps: coating conductive silver adhesive on the surface of the superfine fiber synthetic leather which is subjected to in-situ polymerization of polypyrrole and has the size of 100 multiplied by 50 multiplied by 2mm, adhering the superfine fiber synthetic leather to one side coated with the conductive silver adhesive by using silver wires, and transferring the superfine fiber synthetic leather to a 110 ℃ oven to be heated for 30 min. And then connecting the solar cell panel with the rated power of 20W with a silver wire to finally obtain the self-powered heating device.
Example 2
Preparation of superfine fiber synthetic leather with electric heating function
Soaking 15g of island type superfine fiber synthetic leather with polyurethane content of 40 wt% in 85g of pyrrole monomer, wherein the soaking temperature is 25 ℃, and the soaking time is 40 min;
taking out the superfine fiber synthetic leather impregnated with the pyrrole monomer, and washing the pyrrole monomer adsorbed on the surface of the island type superfine fiber synthetic leather with ethanol for 7 times;
followed by the formulation of H for initiating the polymerization of pyrrole2O2Solution of H2O2The concentration of the sodium p-toluenesulfonate is 0.4mol/L, and sodium p-toluenesulfonate with the concentration of 0.4mol/L is added at the same time, and ultrasonic treatment is carried out for 30 min;
finally, immersing the figured and fixed-island superfine fiber synthetic leather washed by ethanol into the synthetic leather containing H2O2And sodium p-toluenesulfonate, at a temperature of 4 ℃. After 4h, the island-shaped superfine fiber synthetic leather is taken out, washed by ethanol for 6 times, and then placed into a vacuum oven at 70 ℃ for drying for 12h to obtain the superfine fiber synthetic leather with the electric heating function, and the electric heating performance of the superfine fiber synthetic leather is shown in figure 3 under the external application voltage of 7V.
Preparation of electric heating device
The invention utilizes the superfine fiber synthetic leather after in-situ polymerization of polypyrrole to prepare the self-powered heating device, and the specific preparation method comprises the following steps: coating conductive silver adhesive on the surface of the superfine fiber synthetic leather which is subjected to in-situ polymerization of polypyrrole and has the size of 100 multiplied by 50 multiplied by 2mm, adhering the superfine fiber synthetic leather to one side coated with the conductive silver adhesive by using a copper wire, and transferring the superfine fiber synthetic leather to a 110 ℃ oven to be heated for 50 min. And then connecting the solar cell panel with the rated power of 30W with a copper wire, and finally obtaining the self-powered heating device.
Example 3
Preparation of superfine fiber synthetic leather with electric heating function
Soaking 10g of island type superfine fiber synthetic leather with 34 wt% of polyurethane in 90g of pyrrole monomer at 18 ℃ for 30 min;
taking out the superfine fiber synthetic leather impregnated with the pyrrole monomer, and washing the pyrrole monomer adsorbed on the surface of the island type superfine fiber synthetic leather with ethanol for 5 times;
are then formulated for use as initiating pyridinePyrrole polymerized (NH)4)2S2O8Solution of (NH)4)2S2O8The concentration of the sodium dodecyl sulfate is 0.3mol/L, and simultaneously the sodium dodecyl sulfate with the concentration of 0.3mol/L is added for ultrasonic treatment for 20 min;
finally, immersing the fixed island type superfine fiber synthetic leather washed by the ethanol into the (NH) containing4)2S2O8Soaking in aqueous solution of sodium dodecyl sulfate at 2 deg.C for 3 hr, taking out the island-shaped superfine fiber synthetic leather, washing with ethanol for 5 times, drying in vacuum oven at 60 deg.C for 10 hr to obtain superfine fiber synthetic leather with electric heating function, and applying external voltage of 7V to obtain the final product with electric heating performance shown in FIG. 3.
Preparation of electric heating device
The invention utilizes the superfine fiber synthetic leather after in-situ polymerization of polypyrrole to prepare the self-powered heating device, and the specific preparation method comprises the following steps: coating conductive silver adhesive on the surface of the superfine fiber synthetic leather which is subjected to in-situ polymerization of polypyrrole and has the size of 100 multiplied by 50 multiplied by 2mm, adhering the superfine fiber synthetic leather to one side coated with the conductive silver adhesive by using an aluminum wire, and transferring the superfine fiber synthetic leather to a 110 ℃ oven to be heated for 40 min. And then connecting the solar cell panel with the rated power of 20W with an aluminum wire, and finally obtaining the self-powered heating device.
Example 4
Preparation of superfine fiber synthetic leather with electric heating function
Soaking 8g of island type superfine fiber synthetic leather with 35 wt% of polyurethane in 92g of pyrrole monomer, wherein the soaking temperature is 23 ℃, and the soaking time is 25 min;
taking out the superfine fiber synthetic leather impregnated with the pyrrole monomer, and washing the pyrrole monomer adsorbed on the surface of the island type superfine fiber synthetic leather with ethanol for 7 times;
k is then formulated for initiating the polymerization of pyrrole2Cr2O7Solution of where K2Cr2O7The concentration of the sodium dodecyl benzene sulfonate is 0.25mol/L, and simultaneously the sodium dodecyl benzene sulfonate with the concentration of 0.25mol/L is added for ultrasonic treatment for 25 min;
finally, the land shape washed by the ethanol is adoptedImmersing the superfine fiber synthetic leather into the above synthetic leather containing K2Cr2O7And sodium dodecylbenzenesulfonate, at a dipping temperature of 2 deg.C. After 4h, the island-shaped superfine fiber synthetic leather is taken out, washed with ethanol for 4 times, and then placed into a vacuum oven at 65 ℃ for drying for 11h to obtain the superfine fiber synthetic leather with the electric heating function, and the electric heating performance of the superfine fiber synthetic leather is shown in figure 3 under the external application voltage of 7V.
Preparation of electric heating device
The invention utilizes the superfine fiber synthetic leather after in-situ polymerization of polypyrrole to prepare the self-powered heating device, and the specific preparation method comprises the following steps: coating conductive silver adhesive on the surface of the superfine fiber synthetic leather which is subjected to in-situ polymerization of polypyrrole and has the size of 100 multiplied by 50 multiplied by 2mm, adhering the superfine fiber synthetic leather to one side coated with the conductive silver adhesive by using a copper wire, and transferring the superfine fiber synthetic leather to a 110 ℃ oven to be heated for 45 min. And then connecting the solar cell panel with the rated power of 25W with a copper wire, and finally obtaining the self-powered heating device.
As can be seen from FIG. 3, the superfine fiber synthetic leather with electric heating function prepared by the invention can be heated to 70-90 ℃ in a relatively quick time when a voltage of 7V is applied externally, which means that the material has excellent electric heating performance. Meanwhile, the material has better wearing comfort, so the material can be applied to the fields of electric heating clothes and the like.
The foregoing detailed description is intended to illustrate and not limit the invention, which is intended to be within the spirit and scope of the appended claims, and any changes and modifications that fall within the true spirit and scope of the invention are intended to be covered by the following claims.

Claims (2)

1. A preparation method of superfine fiber synthetic leather with an electric heating function is characterized by comprising the following steps:
1) soaking 20-50 wt% of superfine fiber synthetic leather into pyrrole monomer at 18 ℃ for 30min, wherein the mass ratio of the superfine fiber synthetic leather to the pyrrole monomer is 1: 9;
2) washing pyrrole monomers adsorbed on the surface of the superfine fiber synthetic leather by using ethanol;
3) (NH) formulated as initiation of pyrrole polymerisation4)2S2O8Adding 0.3mol/L sodium dodecyl sulfate into the aqueous solution, and performing ultrasonic treatment for 20 min;
4) immersing the superfine fiber synthetic leather obtained in the step 2) into the (NH) obtained in the step 3)4)2S2O8Soaking in water solution at 2 deg.C for 3 hr;
5) washing the surface of the superfine fiber synthetic leather obtained in the step 4) with ethanol, and then placing the superfine fiber synthetic leather at the temperature of 50-70 ℃ for vacuum drying for 8-12 hours to obtain the superfine fiber synthetic leather;
the superfine fiber synthetic leather is island-shaped superfine fiber synthetic leather.
2. The method for preparing the superfine fiber synthetic leather with the electric heating function according to claim 1, wherein the method comprises the following steps: the polyurethane content in the superfine fiber synthetic leather is 30-40 wt%.
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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CN102312376A (en) * 2011-07-07 2012-01-11 武汉纺织大学 Preparation method of composite conductive fabric with spray polymerization
WO2015002825A1 (en) * 2013-07-02 2015-01-08 The University Of Connecticut Electrically conductive synthetic fiber and fibrous substrate, method of making, and use thereof
CN108342526A (en) * 2018-02-11 2018-07-31 南京工业大学 A kind of regulatable leather of novel electric property
CN109022638A (en) * 2018-06-11 2018-12-18 四川大学 The low reflection of one kind, high-selenium corn electromagnetic shielding material and preparation method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102168371A (en) * 2011-03-08 2011-08-31 四川大学 Method for in-situ polymerizing and preparing polypyrrole-coated polylactic acid electrospun composite membrane
CN102312376A (en) * 2011-07-07 2012-01-11 武汉纺织大学 Preparation method of composite conductive fabric with spray polymerization
WO2015002825A1 (en) * 2013-07-02 2015-01-08 The University Of Connecticut Electrically conductive synthetic fiber and fibrous substrate, method of making, and use thereof
CN108342526A (en) * 2018-02-11 2018-07-31 南京工业大学 A kind of regulatable leather of novel electric property
CN109022638A (en) * 2018-06-11 2018-12-18 四川大学 The low reflection of one kind, high-selenium corn electromagnetic shielding material and preparation method thereof

Non-Patent Citations (2)

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Title
"Conducting Leathers for Smart Product Applications";Jima Demisie Wegene 等;《Industrial & Engineering Chemistry Research》;20141104;第53卷(第47期);第18209-18215页 *
"The anisotropic structure of electro conductive leather studied by Van der Pauw method";Aulon SHABANI 等;《Textile & Leather Review》;20190510;第2卷(第3期);第136-144页 *

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