CN111676597B - Friction nanometer generator based on collagen/polyurethane electrostatic spinning material - Google Patents

Friction nanometer generator based on collagen/polyurethane electrostatic spinning material Download PDF

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CN111676597B
CN111676597B CN202010413739.0A CN202010413739A CN111676597B CN 111676597 B CN111676597 B CN 111676597B CN 202010413739 A CN202010413739 A CN 202010413739A CN 111676597 B CN111676597 B CN 111676597B
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polyurethane
collagen
electrostatic spinning
spinning
friction material
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CN111676597A (en
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俞昊
吕莎莎
黄涛
张欣
朱美芳
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Donghua University
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Donghua University
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    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/0007—Electro-spinning
    • D01D5/0015—Electro-spinning characterised by the initial state of the material
    • D01D5/003—Electro-spinning characterised by the initial state of the material the material being a polymer solution or dispersion
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/0007—Electro-spinning
    • D01D5/0061—Electro-spinning characterised by the electro-spinning apparatus
    • D01D5/0069—Electro-spinning characterised by the electro-spinning apparatus characterised by the spinning section, e.g. capillary tube, protrusion or pin
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
    • D01D5/30—Conjugate filaments; Spinnerette packs therefor
    • D01D5/34—Core-skin structure; Spinnerette packs therefor
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F4/00—Monocomponent artificial filaments or the like of proteins; Manufacture thereof
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
    • D01F6/70—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyurethanes
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/02—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from cellulose, cellulose derivatives, or proteins
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/10—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one other macromolecular compound obtained by reactions only involving carbon-to-carbon unsaturated bonds as constituent
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4326—Condensation or reaction polymers
    • D04H1/4358—Polyurethanes
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4374—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece using different kinds of webs, e.g. by layering webs
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    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
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    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/005—Synthetic yarns or filaments
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/005—Synthetic yarns or filaments
    • D04H3/009—Condensation or reaction polymers
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/02—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
    • H02N1/00—Electrostatic generators or motors using a solid moving electrostatic charge carrier
    • H02N1/04—Friction generators
    • D—TEXTILES; PAPER
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    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2401/00—Physical properties
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    • D10B2401/061—Load-responsive characteristics elastic
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    • D10B2505/00—Industrial

Abstract

The invention relates to a friction nanometer generator based on a collagen/polyurethane electrostatic spinning material, which comprises the collagen/polyurethane electrostatic spinning material. The output voltage of the polymer-based friction nano-generator obtained by electrostatic spinning of the collagen and the polyurethane is obviously improved.

Description

Friction nanometer generator based on collagen/polyurethane electrostatic spinning material
Technical Field
The invention belongs to the field of friction nano generators, and particularly relates to a friction nano generator based on a collagen/polyurethane electrostatic spinning material.
Background
The polyurethane has excellent performances of wear resistance, hydrolysis resistance, microorganism resistance and the like, and the polyurethane nanofiber membrane prepared by the electrostatic spinning technology has certain elasticity besides the wear resistance and also has good histocompatibility and blood compatibility; the collagen is prepared by extracting collagen from bovine achilles tendon, fish skin and the like, can be derived from aquatic organisms and terrestrial animals, has wide sources, is a triple-helix special protein formed by three peptide chains, has a plurality of special functions, is negatively charged above an allelic point, can form polyampholyte with positively charged polyurethane, and realizes performance complementation.
The electrostatic spinning polymer-based nanofiber has light weight and ultra-strong flexibility, so that the electrostatic spinning polymer-based nanofiber becomes a very good technology for preparing a nano generator.
Disclosure of Invention
The invention aims to provide a friction nano generator based on a collagen/polyurethane electrostatic spinning material, and provides a new preferable friction material for the friction nano generator.
According to the friction nano generator, the collagen/polyurethane electrostatic spinning film is used as a friction material, and aluminum is used as the friction material and an electrode material.
The friction nano-generator comprises a first friction material, a second friction material and an electrode material, wherein the electrode material is arranged on the lower surface of the second friction material, the first friction material and the second friction material are arranged oppositely, and the first friction material and the second friction material can be in contact and separated under the action of external force.
The first friction material is an aluminum material; the second friction material is a collagen/polyurethane electrostatic spinning film.
The collagen/polyurethane electrostatic spinning material comprises the following components: the composite electrostatic spinning nano-fiber membrane comprises one of a multilayer collagen/polyurethane composite electrostatic spinning nanofiber superposed membrane, a skin-core structure collagen/polyurethane composite electrostatic spinning fiber membrane and a collagen/polyurethane electrostatic spinning membrane.
The multilayer collagen/polyurethane composite electrostatic spinning nanofiber superposed membrane is prepared by the following method: respectively transferring the collagen spinning solution and the polyurethane spinning solution into different injectors, placing the two injectors on a propulsion pump, performing electrostatic spinning by using double-needle-head spraying at the spinning voltage of 5-25 KV, the propulsion speed of 0.1-5 ml/h, the receiving distance of 5-30 cm and the humidity of 20-70%, and recording the obtained collagen/polyurethane composite electrostatic spinning membrane as A; when the solutions of the two injectors are collagen, performing electrostatic spinning to obtain a membrane B; the solution of the two syringes is polyurethane, and the membrane obtained by electrostatic spinning is marked as C; during electrostatic spinning collection, the spinning sequence can be ABC, ACB, BAC, BCA, CAB or CBA, and films with various thicknesses, such as ABCCABC … …, can be collected, so as to obtain a multilayer collagen/polyurethane composite electrostatic spinning nanofiber laminated film.
Further, the collagen/polyurethane composite electrostatic spinning film is specifically marked as a: and respectively placing the two solutions in different injectors, applying voltage by using the same propelling pump but different needles, and receiving the fiber yarns at the needle tip of the spinneret by using the grounded aluminum foil to obtain the disordered nanofiber membrane A.
The skin-core structure collagen/polyurethane composite electrostatic spinning fiber membrane is prepared by the following method: respectively transferring the collagen spinning solution and the polyurethane spinning solution into different injectors, placing the two injectors on a propulsion pump, using a coaxial needle and a polyurethane solution as a core layer at a spinning voltage of 5-25 KV, a receiving distance of 5-30 cm and a humidity of 20-70%, wherein the propulsion speed is 1ml/h, the collagen solution as a skin layer at a propulsion speed of 0.1-0.5 ml/h, and performing electrostatic spinning to obtain the skin-core structure collagen/polyurethane composite electrostatic spinning fiber membrane.
The solvent of the collagen spinning solution is glacial acetic acid or hexafluoroisopropanol; the solvent of the polyurethane spinning solution is one or more of N, N-dimethylformamide DMF, hexafluoroisopropanol, trifluoroethanol TFE and trichloromethane TCM.
The polyurethane material is a polymer material containing urethane bonds.
Further, the polyurethane includes, but is not limited to, polyether polyurethane, polyester polyurethane, or thermoplastic polyurethane.
Further, the solvent of the polyurethane spinning solution is one of N, N-dimethylformamide DMF, hexafluoroisopropanol, and a mixed solution of trifluoroethanol TFE and trichloromethane TCM.
The concentration of the collagen spinning solution is 8-15% (wt%); the concentration of the polyurethane spinning solution is 18-25%.
Further, the collagen spinning solution is specifically prepared by dissolving collagen in a solvent, and stirring the solution by slight heating until the collagen is completely dissolved to prepare a spinning collagen spinning solution; the polyurethane spinning solution specifically comprises: and (3) dissolving polyurethane in a solvent, and heating to 80 ℃ until the polyurethane is completely dissolved to prepare a polyurethane spinning solution.
The fiber device for receiving the nanofiber membrane by the double-needle electrostatic spinning and the coaxial-needle electrostatic spinning is a roller or a flat plate.
The needle type electrospinning is not limited to a double needle, but a multiple needle may be applicable.
The invention provides an application of the friction nano generator.
Advantageous effects
(1) Compared with a pure polyurethane-based friction nano-generator and a pure collagen-based friction nano-generator, the polymer-based friction nano-generator obtained by electrostatic spinning of collagen and polyurethane has the advantage that the output voltage is obviously improved.
(2) The method has simple process and easy operation.
(3) The invention uses double needles for electrostatic spinning, and has the advantages that two different polymers can be dissolved by using different solvents without mutual interference, and a double-component film and a single-component film can be superposed during collection; the coaxial needle can be used for electrostatic spinning, the spun fiber is of a skin-core structure, and the output performance of the friction nano generator prepared from the fiber film can be improved by two different spinning technologies except that the appearance of the fiber is changed.
(4) The collagen/polyurethane composite nanofiber membrane has certain elasticity and biocompatibility, and has high-quality skin feel.
Drawings
FIG. 1 is a diagram of a double needle electrospinning apparatus;
FIG. 2 is a drawing of a coaxial electrospinning apparatus;
fig. 3 is a schematic diagram of a triboelectric nanogenerator.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
Wherein the polyurethane granule type is 1195A10004 CNF3310528, available from Shanghai BASF Limited; the collagen is bovine achilles tendon collagen.
The structure of the triboelectric nanogenerator is shown in fig. 3.
Example 1
Weighing 0.4g of collagen, dissolving the collagen in 5ml of glacial acetic acid, stirring for about 30min on a magnetic stirrer, and heating for about 10 min at 70-80 ℃ to completely dissolve the collagen uniformly without bubbles; then 2g of the polyurethane pellets were weighed, dissolved in 18g N, N-Dimethylformamide (DMF) and heated at 80 ℃ until the dissolution was uniform and free of bubbles. Then placing the two obtained spinning solutions in different injectors for double-needle electrostatic spinning, wherein the spinning voltage is 15kV, the receiving distance is 15cm, the propelling speed is 1ml/h, and the relative humidity is 20%, so as to obtain the collagen/polyurethane composite electrostatic spinning nanofiber; then, reserving the composite membrane on the collecting device, placing the collagen solution into two injectors, and continuously performing electrostatic spinning under the same condition; and after spinning is finished, the electrostatic spinning membrane on the collecting device is still remained, the polyurethane solution is placed in two injectors to continue electrostatic spinning under the same condition, and finally, after the spinning is finished, the obtained nascent fiber membrane is exposed in the air for 24 hours, so that the solvent is fully volatilized, and the three-layer collagen/polyurethane composite electrostatic spinning nanofiber superposed membrane is obtained. The pure polyurethane electrostatic spinning fiber membrane and the aluminum electrode are combined to prepare a friction nano generator #1, the pure collagen fiber membrane and the aluminum electrode are combined to prepare a friction nano generator #2, the three layers of the collagen/polyurethane fiber membrane and the aluminum electrode are combined to prepare a friction nano generator #3, the output voltage of the friction nano generator #3 is tested, the output voltage of the friction nano generator #3 is the highest, and the output voltage is respectively improved by about 200V compared with the output voltage of the friction nano generator #1 and about 100V compared with the output voltage of the friction nano generator # 2.
Example 2
Weighing 0.4g of collagen, dissolving the collagen in 5ml of glacial acetic acid, stirring for about 30min on a magnetic stirrer, and heating for about 10 min at 70-80 ℃ to completely dissolve the collagen uniformly without bubbles; then 2g of the polyurethane pellets were weighed, dissolved in 18g of N, N-Dimethylformamide (DMF) and heated at 80 ℃ until the dissolution was uniform and free of bubbles. And then placing the two obtained spinning solutions in different injectors for coaxial electrostatic spinning, wherein the polyurethane solution is a core layer, the advancing speed is 1ml/h, the collagen spinning solution is a skin layer, the advancing speed is 0.5ml/h, the spinning voltage is 15kV, the receiving distance is 15cm, the advancing speed is 1ml/h, and the relative humidity is 20%. And exposing the obtained nascent fiber membrane in the air for 24 hours to fully volatilize the solvent, thereby obtaining the collagen/polyurethane skin core electrostatic spinning nano-fiber. The method comprises the steps of combining a pure polyurethane electrostatic spinning fiber membrane with an aluminum electrode to prepare a friction nano generator #1, combining a pure collagen fiber membrane with an aluminum electrode to prepare a friction nano generator #2, combining a collagen/polyurethane skin-core electrostatic spinning nano fiber aluminum electrode to prepare a friction nano generator #3, and testing the output voltage of the friction nano generator #3, wherein the output voltage of the friction nano generator #3 is the highest and is respectively improved by about 350V compared with the output voltage of the #1 and about 200V compared with the output voltage of the # 2.

Claims (5)

1. A friction nano-generator is characterized by comprising a first friction material, a second friction material and an electrode material, wherein the electrode material is arranged on the lower surface of the second friction material, the first friction material and the second friction material are oppositely arranged, and the first friction material and the second friction material can be contacted and separated under the action of external force;
wherein the first friction material is an aluminum material; the second friction material is a collagen/polyurethane composite electrostatic spinning nanofiber superposed film with a multilayer structure;
the multilayer collagen/polyurethane composite electrostatic spinning nanofiber superposed membrane is prepared by the following method: respectively transferring the collagen spinning solution and the polyurethane spinning solution into injectors, placing the two injectors on a propulsion pump, performing electrostatic spinning by using double-needle spraying at the spinning voltage of 5-25 KV, the propulsion speed of 0.1-5 ml/h, the receiving distance of 5-30 cm and the humidity of 20-70%, and recording the obtained collagen/polyurethane composite electrostatic spinning membrane as A; when the solutions of the two injectors are collagen, performing electrostatic spinning to obtain a membrane B; the solution of the two syringes is polyurethane, and the membrane obtained by electrostatic spinning is marked as C; and during electrostatic spinning collection, the spinning sequence can be one of ABC, ACB, BAC, BCA, CAB and CBA, and the multilayer collagen/polyurethane composite electrostatic spinning nanofiber superposed membrane is obtained.
2. The tribo-nanogenerator according to claim 1, wherein the collagen spinning solution is prepared from glacial acetic acid or hexafluoroisopropanol; the solvent of the polyurethane spinning solution is one or more of N, N-dimethylformamide DMF, hexafluoroisopropanol, trifluoroethanol TFE and trichloromethane TCM; the polyurethane is polyether polyurethane, polyester polyurethane or thermoplastic polyurethane.
3. The triboelectric nanogenerator of claim 1, wherein the concentration of the collagen spinning solution is 8% to 15% (wt%); the concentration of the polyurethane spinning solution is 18-25% (wt%).
4. The triboelectric nanogenerator of claim 1, wherein the electrostatic filament receiving device is a drum or a flat plate.
5. Use of a triboelectric nanogenerator as claimed in claim 1.
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