CN118957834A - A friction nano-electricity generating fabric and its application - Google Patents
A friction nano-electricity generating fabric and its application Download PDFInfo
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- CN118957834A CN118957834A CN202411404253.5A CN202411404253A CN118957834A CN 118957834 A CN118957834 A CN 118957834A CN 202411404253 A CN202411404253 A CN 202411404253A CN 118957834 A CN118957834 A CN 118957834A
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
- A41D31/02—Layered materials
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
- A41D31/04—Materials specially adapted for outerwear characterised by special function or use
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D1/00—Woven fabrics designed to make specified articles
- D03D1/0088—Fabrics having an electronic function
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D13/00—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
- D03D13/008—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft characterised by weave density or surface weight
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
- D03D15/208—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads cellulose-based
- D03D15/217—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads cellulose-based natural from plants, e.g. cotton
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
- D03D15/233—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads protein-based, e.g. wool or silk
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
- D03D15/233—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads protein-based, e.g. wool or silk
- D03D15/235—Cashmere or silk
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
- D03D15/242—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads inorganic, e.g. basalt
- D03D15/25—Metal
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
- D03D15/242—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads inorganic, e.g. basalt
- D03D15/275—Carbon fibres
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
- D03D15/283—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads synthetic polymer-based, e.g. polyamide or polyester fibres
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/40—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads
- D03D15/43—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads with differing diameters
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/40—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads
- D03D15/47—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads multicomponent, e.g. blended yarns or threads
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
- D03D15/533—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads antistatic; electrically conductive
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- 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
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
- D10B2201/01—Natural vegetable fibres
- D10B2201/02—Cotton
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2211/00—Protein-based fibres, e.g. animal fibres
- D10B2211/01—Natural animal fibres, e.g. keratin fibres
- D10B2211/02—Wool
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2211/00—Protein-based fibres, e.g. animal fibres
- D10B2211/01—Natural animal fibres, e.g. keratin fibres
- D10B2211/04—Silk
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D10B2321/04—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polymers of halogenated hydrocarbons
- D10B2321/042—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polymers of halogenated hydrocarbons polymers of fluorinated hydrocarbons, e.g. polytetrafluoroethene [PTFE]
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2403/00—Details of fabric structure established in the fabric forming process
- D10B2403/01—Surface features
- D10B2403/011—Dissimilar front and back faces
- D10B2403/0114—Dissimilar front and back faces with one or more yarns appearing predominantly on one face, e.g. plated or paralleled yarns
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- Engineering & Computer Science (AREA)
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- Chemical & Material Sciences (AREA)
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- Woven Fabrics (AREA)
Abstract
The invention discloses a friction nano power generation fabric and application thereof, and belongs to the technical fields of functional textile cloth and friction nano power generators. The invention is based on a woven fabric reorganization design, employing a specific yarn configuration such that one side of the fabric functions as an electrode while the other side acts as a dielectric material. When the dielectric material surfaces of the two layers of fabrics are contacted and then separated, frictional charge transfer occurs between interfaces based on the principle of a friction nano generator, electrons realize transition between the two layers of fabrics, so that potential difference and current are generated between electrode materials at two sides, and conversion from mechanical energy to electric energy is realized.
Description
Technical Field
The invention relates to a friction nano power generation fabric and application thereof, and belongs to the technical fields of functional textile cloth and friction nano power generators.
Background
Tribo-nano generators (TENG, triboelectric Nanogenerator) are an emerging energy capture technology that uses the wiping effect and the charge-induced effect to convert mechanical energy into electrical energy. However, most friction nano-generators today rely on rigid materials, limiting their application in flexible, wearable devices.
The existing friction nano-generator is mostly based on hard materials, such as metal, polymer films and the like, and the materials are easy to lose efficacy under dynamic deformation conditions such as bending, stretching and the like, so that the requirements of flexible electronic devices are difficult to meet. Although some research has begun to explore the use of flexible materials in TENGs, most of these flexible TENGs suffer from limited material choices, complex manufacturing processes, low power generation efficiency, and the like. The existing flexible TENG mostly adopts single polymer materials, such as Polydimethylsiloxane (PDMS), polyvinylidene fluoride (PVDF), and the like, and the material selection is single, so that the requirement of diversified applications is difficult to meet. The fabrication process of flexible TENG typically involves complex micro-nanostructure fabrication processes such as etching, deposition, etc., which are not only costly, but also difficult to achieve in mass production. And the flexible TENG is easy to generate structural relaxation in the dynamic deformation process, so that the friction charge transfer efficiency is reduced, and the overall power generation efficiency is low.
To overcome the above problems, researchers have attempted to integrate friction nano-generator technology into fabrics, and to improve the wearability and application range of TENG by utilizing the flexibility and diversity of fabrics. A Fabric-based friction nano-generator (Fabric-based TENG) achieves a flexible, wearable friction nano-generating function by weaving conductive and dielectric yarns into a Fabric. However, the existing fabric-based TENG still has shortcomings in terms of material selection, weaving process and power generation efficiency, and is particularly characterized in terms of selection of conductive yarns and dielectric yarns, complexity of weaving process, power generation efficiency and durability and the like.
The existing textile-based TENG mostly adopts conductive polymer yarns and conventional yarns, but the materials generally show the triboelectric effect and the charge transfer efficiency, and high-efficiency power generation is difficult to realize. Like the Chinese patent CN108796755B, the composite yarn containing the conductive inner core is used as warp and weft to be organized by the existing textile technology to obtain the power generation fabric, and the outer layer material of the composite yarn and the conductive inner core are coated by adopting a winding mode, so that the preparation process is very complex, and the composite yarn containing the filament conductive inner core is reported at home and abroad. And the conductive inner core of the yarn can randomly emerge on the surface layer of the outer layer material, so that the metal wire is coated with poor effect, and the charge collection efficiency and the triboelectric effect of the metal wire are affected. And the elasticity of the yarn is poor, and the stretching and impact of the open weft insertion pair warp yarn are difficult to bear in the manufacturing process, so that the conductive inner core of the yarn is further caused to be emerged on the surface layer of the outer layer material. The existing fabric-based TENG mostly adopts complex weaving processes, such as multi-layer weaving, alternate weaving and the like, which not only increase the manufacturing cost, but also limit the feasibility of mass production. In the dynamic use process of the existing textile-based TENG, frictional charge is easily lost due to slippage and relaxation among fibers, so that the power generation efficiency and durability are not high.
Despite the above problems, research into fabric-based friction nano-generators has made some important progress. For example, some researchers have tried to use novel conductive materials such as graphene yarns, carbon nanotube yarns, etc., which have excellent conductivity and flexibility, significantly improving the power generation efficiency of TENG. By optimizing the weave structure of the fabric, such as with a double layer weave, a multi-layer composite structure, etc., researchers have improved the transfer efficiency of triboelectric charges and durability of the fabric. Textile-based TENG has been successfully applied to the fields of wearable electronic devices, intelligent clothing, self-powered sensors and the like, and has demonstrated a broad application prospect.
However, these research results are mostly in laboratory stage, and many challenges are still faced in practical application, such as reducing cost, simplifying manufacturing process, improving power generation efficiency and durability, etc. Therefore, there is a need for a low cost and high efficiency friction nano-generating fabric suitable for mass production to meet market demand.
In summary, the existing friction nano-generator technology has many limitations in flexible and wearable applications, and although the fabric-based friction nano-generator has a certain progress, the material selection, the weaving process, the power generation efficiency and the like still need to be improved. The invention aims to provide a friction nanometer power generation fabric based on a woven fabric, which realizes low-cost, large-scale production and high-efficiency power generation through innovative yarn configuration and weaving process and provides a new solution for flexible and wearable electronic equipment.
Disclosure of Invention
The invention aims to solve the technical problems of the existing friction nano power generation fabric and provides the friction nano power generation fabric which is low in cost and suitable for mass production.
The technical scheme of the invention is as follows:
One of the purposes of the invention is to provide a friction nano electricity generation fabric, which comprises a first conductive fabric and a second conductive fabric which are distributed in a layered manner, wherein friction between the first conductive fabric and the second conductive fabric realizes electricity generation;
The first conductive fabric and the second conductive fabric are both made by adopting a recombinant weaving process, one surface of the first conductive fabric shows Yi Shidian sub-characteristics, and the other surface is an electrode; the second conductive fabric exhibits readily available electrical characteristics on one side and an electrode on the other side.
Further defined, the first conductive fabric adopts a weft double structure, the dielectric material yarns with volatile electrons are surface weft yarns and warp yarns, and the conductive yarns are inner weft yarns; the second conductive fabric adopts weft double weave, the dielectric material yarns with easy-to-obtain electrons are surface weft yarns and warp yarns, and the conductive yarns are inner weft yarns.
Further defined, the volatile and readily available dielectric yarns are larger in diameter than the conductive yarns and the outer weft completely covers the inner weft.
Further defined, the first conductive fabric adopts a warp double structure, the yarns of the dielectric material with volatile electrons are surface warp yarns and weft yarns, and the conductive yarns are inner warp yarns; the second conductive fabric adopts a warp double structure, the dielectric material yarns with easy available electrons are surface warp yarns and weft yarns, and the conductive yarns are inner warp yarns.
Further defined, the diameter of the volatile and accessible dielectric material yarns is greater than the diameter of the conductive yarns, and the surface warp completely covers the inner warp.
Further defined, the material of the volatile electronic dielectric material yarn is wool yarn, silk, cotton yarn, nylon 6 or nylon 66.
Further defined, the readily available electronic yarn of dielectric material is polytetrafluoroethylene or polyvinylidene fluoride.
Further defined, the conductive yarn is silver-plated yarn, metal wire, metal blended yarn, graphene yarn or carbon nanotube yarn.
Another object of the present invention is to provide a friction nano-generating device comprising the above friction nano-generating fabric.
It is a further object of the present invention to provide a wearable device comprising the friction nano-generating device described above.
The invention has the beneficial effects that:
The invention is based on a woven fabric reorganization design, employing a specific yarn configuration such that one side of the fabric functions as an electrode while the other side acts as a dielectric material. When the dielectric material surfaces of the two layers of fabrics are contacted and then separated, frictional charge transfer occurs between interfaces based on the principle of a friction nano generator, electrons realize transition between the two layers of fabrics, so that potential difference and current are generated between electrode materials at two sides, and conversion from mechanical energy to electric energy is realized. Compared with the prior art, the invention has the following advantages:
(1) The invention adopts weft double-weave or warp double-weave weaving technology to manufacture the generating fabric, so that the surfaces of two sides of the generating fabric are respectively represented as a dielectric material layer and an electrode layer, and then the generating fabric can effectively convert mechanical energy into electric energy based on the design of the principle of a contact separation friction nano generator. The fabric production equipment adopted by the invention is generally applicable, meets the production conditions of most enterprises, has simple and efficient manufacturing process, can realize large-scale production, and has excellent market popularization potential.
(2) The yarn used for preparing the power generation fabric is rich in variety, can cover various common yarns, can be seamlessly combined with clothing materials, and is particularly suitable for effectively collecting mechanical energy generated by a human body in the running, running and other exercise processes and converting the mechanical energy into electric energy with high efficiency.
(3) In addition, the fabric prepared by the method is flexible in appearance design, and yarn colors and tissue points can be freely changed on the basis of meeting the requirement of the recombinant fabric design elements, so that colorful appearance designs are realized, and the personalized requirements of different consumers are met.
In conclusion, the invention has simple and efficient preparation process, excellent wearable comfort and universality, wide application range, large-size and large-scale production and good industrialization prospect.
Drawings
FIG. 1 is a schematic diagram of a friction nano-generator;
FIG. 2 is a schematic diagram of a friction nano-generator friction power generation process;
FIG. 3a is a schematic view of the yarn arrangement of the first conductive fabric of example 1;
FIG. 3b is a schematic cross-sectional yarn view of the first conductive fabric of example 1;
FIG. 3c is a schematic front view of the first conductive fabric of example 1;
FIG. 3d is a schematic representation of the reverse side of the first conductive fabric of example 1;
FIG. 3e is a graph of electrical output performance of the friction nano-generator of example 1 prepared at 3cm 5 cm;
FIG. 4a is a schematic view of the yarn arrangement of the first conductive fabric of example 2;
FIG. 4b is a schematic cross-sectional yarn view of the first conductive fabric of example 2;
FIG. 4c is a schematic front view of the first conductive fabric of example 2;
FIG. 4d is a schematic representation of the reverse side of the first conductive fabric of example 2;
Fig. 4e is a graph of electrical output performance of the friction nano-generator of example 2 prepared at 3cm x 5 cm;
FIG. 5 is a schematic diagram of a first conductive fabric of example 3;
FIG. 6 is a schematic diagram of a first conductive fabric of example 4;
In the figure, 1-electrode layer of the first conductive fabric, 2-electrode layer of the second conductive fabric, 3-dielectric material layer of the second conductive fabric with easily available electrons, 3, 4-dielectric material layer with easily available electrons, 5-warp, 6-weft, 7-weft, 8-warp, 9-weft and 10-weft.
Detailed Description
The present invention will be described in further detail with reference to the following examples in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The experimental methods used in the following examples are conventional methods unless otherwise specified. The materials, reagents, methods and apparatus used, without any particular description, are those conventional in the art and are commercially available to those skilled in the art.
Detailed description of the preferred embodiments
A friction nano-generating fabric comprises a first conductive fabric and a second conductive fabric which are distributed in a layered mode, wherein the first conductive fabric and the second conductive fabric are woven by using weft double weave.
Warp yarns of the first conductive fabric are dielectric materials of volatile electrons; the weft yarn is divided into two systems, the surface weft yarn is a dielectric material yarn with the same volatile electron as the warp yarn, and the inner weft yarn is a conductive yarn. The design of the first fabric-guiding weave structure accords with the design characteristics of weft double weave, weft weave points of dielectric material on the front surface of the fabric cover weft weave points of electrode material yarns, namely the dielectric material yarns with volatile electrons are surface weft and are displayed on the front surface of the fabric to form a dielectric material layer; the conductive yarn is weft-in, and is displayed on the back surface of the fabric to form an electrode layer, and the diameter of the dielectric material yarn with volatile electrons is larger than that of the conductive yarn, and the weft-in is completely covered by the weft-in.
Warp yarns of the second conductive fabric are dielectric materials with readily available electrons; the weft yarns are divided into two systems, the surface weft yarns are dielectric material yarns with the same easily available electrons as the warp yarns, and the inner weft yarns are conductive yarns. The design of the second fabric-guiding weave structure accords with the design characteristics of weft double weave, weft weave points of dielectric material on the front surface of the fabric cover weft weave points of electrode material yarns, namely the dielectric material yarns with easy-to-obtain electrons are surface weft yarns and are displayed on the front surface of the fabric to form a dielectric material layer; the conductive yarn is weft-in, and is displayed on the back surface of the fabric to form an electrode layer, and the diameter of the easy electronic dielectric material yarn is larger than that of the conductive yarn, and the weft-in is completely covered by the weft-in.
Specifically, the material of the dielectric material yarn with volatile electrons is common short fibers or filaments such as wool yarn, silk, cotton yarn, nylon 6 or nylon 66. The dielectric material yarn material with easily available electrons is a dielectric material with easily available electrons such as polytetrafluoroethylene or polyvinylidene fluoride, and the like, so that the electrons can be efficiently captured in the contact separation process. The conductive yarn is silver-plated yarn, metal wire, metal blended yarn, graphene yarn or carbon nano tube yarn.
The friction nano-generator based on the friction nano-generating fabric is shown in fig. 1, wherein the dielectric material layer 4 of the first conductive fabric with the electrons easy to obtain is opposite to the dielectric material layer 3 of the second conductive fabric, and the electrode layer 1 of the first conductive fabric is connected with the electrode layer 2 of the second conductive fabric through a wire.
The schematic diagram of the friction power generation of the friction power generator is shown in fig. 2, and the friction power generation process is as follows in fig. 2: when the dielectric material layer of the first conductive fabric with the electron-volatile dielectric material layer of the second conductive fabric is contacted and then separated (i to ii), based on the principle of friction nano generator, friction charge transfer occurs between interfaces (iii), electrons jump between dielectric materials, thus generating voltage between electrode materials at two sides (iv), which can reach 20V, and conversion from mechanical energy to electric energy is realized.
Detailed description of the preferred embodiments
A friction nano-generating fabric comprises a first conductive fabric and a second conductive fabric which are distributed in a layered mode, wherein the first conductive fabric and the second conductive fabric are woven by using warp double organization.
The weft yarn of the first conductive fabric is a dielectric material with volatile electrons; the warp yarn is divided into two systems, the surface warp is the same volatile electronic dielectric material yarn as the weft yarn, and the inner warp is the conductive yarn. The design of the first fabric-guiding weave structure accords with the design characteristics of warp double weave, and warp weave points of electrode material yarns are covered by warp weave points of dielectric material on the front surface of the fabric, namely the dielectric material yarns with volatile electrons are surface warp and are displayed on the front surface of the fabric to form a dielectric material layer; the conductive yarn is an inner warp, the conductive yarn is displayed on the back surface of the fabric to form an electrode layer, and the diameter of the dielectric material yarn with the volatile electrons is larger than that of the conductive yarn, so that the inner warp is completely covered by the surface warp.
The weft yarn of the second conductive fabric is a dielectric material with easily available electrons; the warp yarn is divided into two systems, the surface warp is a dielectric material yarn with the same easily available electrons as the weft yarn, and the inner warp is a conductive yarn. The design of the structure of the second fabric is in accordance with the design characteristics of warp double organization, and warp organization points of electrode material yarns are covered by warp organization points of dielectric material on the front surface of the fabric, namely the dielectric material yarns with easily obtained electrons are used as surface warp and are displayed on the front surface of the fabric to form a dielectric material layer; the conductive yarn is an inner warp, the conductive yarn is displayed on the back surface of the fabric to form an electrode layer, and the diameter of the dielectric material yarn which is easy to electron is larger than that of the conductive yarn, and the surface warp completely covers the inner warp.
The working principle of the friction nano generator based on the friction nano power generation fabric is as follows: when the dielectric material layers of the first conductive fabric and the second conductive fabric are contacted and then separated, frictional charge transfer occurs between interfaces based on the principle of a friction nano generator, electrons jump between dielectric materials, so that potential difference and current are generated between electrode materials at two sides, and conversion from mechanical energy to electric energy is realized.
Example 1
A friction nano-generating fabric is woven by using weft double weave. Specific:
The yarn arrangement of the first conductive fabric is schematically shown in fig. 3a, wherein warp yarn 5 and surface weft yarn 7 are wool yarns, inner weft yarn 6 is silver-plated nylon yarns, the diameters of warp yarn 5 and surface weft yarn 7 are 26Nm, and the diameter of inner weft yarn 6 is 70D/3. As shown in fig. 3a, the weft tissue points of the surface weft 7 are more than the weft tissue points of the inner weft 6, the weft tissue points of the inner weft 6 are the weft tissue points of the surface weft 7 up and down, and the surface weft 7 is thicker, and the yarns can generate extrusion sliding due to beating-up force in the weaving process, and the weft tissue points of the surface weft 7 can cover the weft tissue points of the inner weft 6. The cloth cover effect shown in fig. 3c is formed on the front side of the fabric, the front side of the fabric is only provided with wool yarns, the cloth cover effect shown in fig. 3d is formed on the back side of the fabric, and the silver-plated nylon yarns are arranged on the wool yarns. The schematic cross section in the weft direction of the fabric is shown in fig. 3b, warp yarn 5 and surface weft yarn 7 are wool yarns, and inner weft yarn 6 is silver-plated nylon yarn. A layer 4 of a dielectric material exhibiting volatile electrons in the form of wool yarn on one side and an electrode layer 1 exhibiting silver-plated nylon yarn on the other side are obtained.
The second conductive fabric has the same structure as the first conductive fabric, only the materials of the yarns are different, the specific warp yarns 5 and the surface weft yarns 7 are polytetrafluoroethylene yarns, and the inner weft yarns 6 are silver-plated nylon yarns. A dielectric material layer 3 is obtained which exhibits readily available electrons in the form of polytetrafluoroethylene yarn on one side and an electrode layer 2 with silver-plated nylon yarn on the other side.
The first conductive fabric and the second conductive fabric obtained as described above are placed as shown in fig. 1, the dielectric material layer 4 of the first conductive fabric for electrons is opposite to the dielectric material layer 3 of the second conductive fabric for electrons, and the electrode layer 1 of the first conductive fabric and the electrode layer 2 of the second conductive fabric are connected by wires. The dielectric material layer 4 of the first conductive fabric with electrons easy to get is contacted and separated with the dielectric material layer 3 of the second conductive fabric, the dielectric material layer 4 of electrons easy to get generates friction charge transfer between the section of the dielectric material layer 3 of electrons easy to get, electrons jump between the dielectric materials, thus produce the voltage between electrode materials of both sides, as shown in figure 3e, the sample with the size of 3cm x 5cm, the output voltage with the frequency of 2Hz, the highest voltage can reach 20V.
Example 2
A friction nano-generating fabric is woven by using weft double weave. Specific:
A schematic representation of the yarn arrangement of the first conductive fabric is shown in FIG. 4a, weft yarn 10 and top warp yarn 8 are wool yarns, bottom warp yarn 9 is silver plated nylon yarns, the diameter of weft yarn 10 and top warp yarn 8 is 26Nm, and the diameter of bottom warp yarn 9 is 70D/3. As shown in FIG. 4a, the surface meridian 8 has more organized points than the inner meridian 9, the inner meridian 9 has both the left and right organized points of the surface meridian 8, and the surface meridian 8 is thicker, so the organized points of the surface meridian 8 cover the organized points of the inner meridian 9. The cloth cover effect shown in fig. 4c is formed on the front side of the fabric, the front side of the fabric is only provided with wool yarns, the cloth cover effect shown in fig. 4d is formed on the back side of the fabric, and the silver-plated nylon yarns are arranged on the wool yarns. The schematic cross section in the weft direction of the fabric is shown in fig. 4b, weft yarn 10 and surface warp yarn 8 are wool yarns, and inner warp yarn 9 is silver-plated nylon yarn. A layer 4 of a dielectric material exhibiting volatile electrons in the form of wool yarn on one side and an electrode layer 1 exhibiting silver-plated nylon yarn on the other side are obtained.
The second conductive fabric has the same structure as the first conductive fabric, only the materials of the yarns are different, the specific weft yarns 10 and the surface warp yarns 8 are polytetrafluoroethylene yarns, and the inner warp yarns 9 are silver-plated nylon yarns. A dielectric material layer 3 is obtained which exhibits readily available electrons in the form of polytetrafluoroethylene yarn on one side and an electrode layer 2 with silver-plated nylon yarn on the other side.
The first conductive fabric and the second conductive fabric obtained as described above are placed as shown in fig. 1, the dielectric material layer 4 of the first conductive fabric for electrons is opposite to the dielectric material layer 3 of the second conductive fabric for electrons, and the electrode layer 1 of the first conductive fabric and the electrode layer 2 of the second conductive fabric are connected by wires. The dielectric material layer 4 of the first conductive fabric with electrons easy to get is contacted and separated with the dielectric material layer 3 of the second conductive fabric, the dielectric material layer 4 of electrons easy to get generates friction charge transfer between the section of the dielectric material layer 3 of electrons easy to get, electrons jump between the dielectric materials, thus the potential difference is generated between the electrode materials at both sides, as shown in figure 4e, the sample with the size of 3cm x 5cm, the output voltage with the frequency of 2Hz, the highest voltage can reach 150V.
Example 3
The first conductive fabric was prepared using a double weft weave with different side effects as shown in fig. 5, wherein colored patches are weft weave points and non-colored patches show warp weave points. The warp yarn and the surface weft yarn of the specific first conductive fabric are wool yarns, and the inner weft yarn is silver-plated nylon yarn; in FIG. 5, the ordinate I-VIII is the surface weft yarn and the abscissa 1-8 is the inner weft yarn. The weave structure according to fig. 5 is designed such that the weft weave points of the front wool yarn of the fabric cover the weft weave points of the silver-plated nylon yarn. A layer 4 of a dielectric material exhibiting volatile electrons in the form of wool yarn on one side and an electrode layer 1 exhibiting silver-plated nylon yarn on the other side are obtained.
The second conductive fabric has the same structure as the first conductive fabric, only the yarns are different in material, the specific warp yarns and the surface weft yarns are polytetrafluoroethylene yarns, and the inner weft yarns are silver-plated nylon yarns. A dielectric material layer 3 is obtained which exhibits readily available electrons in the form of polytetrafluoroethylene yarn on one side and an electrode layer 2 with silver-plated nylon yarn on the other side.
The first conductive fabric and the second conductive fabric obtained as described above are placed as shown in fig. 1, the dielectric material layer 4 of the first conductive fabric for electrons is opposite to the dielectric material layer 3 of the second conductive fabric for electrons, and the electrode layer 1 of the first conductive fabric and the electrode layer 2 of the second conductive fabric are connected by wires. The dielectric material layer 4 of the first conductive fabric, which is easy to obtain electrons, is contacted with and separated from the dielectric material layer 3 of the second conductive fabric, the dielectric material layer 4 of the easy to obtain electrons generates friction charge transfer between the sections of the dielectric material layer 3 of the easy to obtain electrons, and electrons are transited between the dielectric materials, so that voltage and current are generated between electrode materials at two sides.
Example 4
The first conductive fabric was prepared using a double warp knit with double satin weave as shown in fig. 6, wherein colored patches are warp knit points and non-colored patches show weft knit points. The weft yarn and the surface warp of the specific first conductive fabric are wool yarns, and the inner warp is silver-plated nylon yarns; in FIG. 3, the abscissa I-VIII represent the exterior meridians and the ordinate 1-8 represent the interior meridians. The weave point of the front wool yarn of the fabric was designed to cover the weave point of the silver plated nylon yarn according to the weave structure of fig. 6. A layer 4 of a dielectric material exhibiting volatile electrons in the form of wool yarn on one side and an electrode layer 1 exhibiting silver-plated nylon yarn on the other side are obtained.
The second conductive fabric has the same structure as the first conductive fabric, only the yarns are different in material, the specific weft yarns and the surface warp are polytetrafluoroethylene yarns, and the inner warp is silver-plated nylon yarns. A dielectric material layer 3 is obtained which exhibits readily available electrons in the form of polytetrafluoroethylene yarn on one side and an electrode layer 2 with silver-plated nylon yarn on the other side.
The first conductive fabric and the second conductive fabric obtained as described above are placed as shown in fig. 1, the dielectric material layer 4 of the first conductive fabric for electrons is opposite to the dielectric material layer 3 of the second conductive fabric for electrons, and the electrode layer 1 of the first conductive fabric and the electrode layer 2 of the second conductive fabric are connected by wires. The dielectric material layer 4 of the first conductive fabric, which is easy to obtain electrons, is contacted with and separated from the dielectric material layer 3 of the second conductive fabric, the dielectric material layer 4 of the easy to obtain electrons generates friction charge transfer between the sections of the dielectric material layer 3 of the easy to obtain electrons, and electrons are transited between the dielectric materials, so that voltage and current are generated between electrode materials at two sides.
The above description is merely a preferred embodiment of the present invention, and since the person skilled in the art can make appropriate changes and modifications to the above-described embodiment, the present invention is not limited to the above-described embodiment, and some modifications and changes of the present invention should fall within the scope of the claims of the present invention.
Claims (8)
1. The friction nano electricity generation fabric is characterized by comprising a first conductive fabric and a second conductive fabric which are distributed in a layered manner, wherein friction between the first conductive fabric and the second conductive fabric realizes electricity generation;
The first conductive fabric and the second conductive fabric are both made by adopting a recombinant weaving process, one surface of the first conductive fabric shows Yi Shidian sub-characteristics, and the other surface is an electrode; one side of the second conductive fabric is characterized by easy-to-obtain electronic characteristics, and the other side is an electrode;
The first conductive fabric adopts weft double weave, the dielectric material yarns of volatile electrons are surface weft yarns and warp yarns, and the conductive yarns are inner weft yarns; the second conductive fabric adopts weft double weave, the easily-obtained electronic dielectric material yarns are surface weft yarns and warp yarns, and the conductive yarns are inner weft yarns;
The diameters of the dielectric material yarns with the volatile electrons and the dielectric material yarns with the readily available electrons are larger than those of the conductive yarns, and the surface wefts completely cover the inner wefts.
2. The friction nano electricity generation fabric is characterized by comprising a first conductive fabric and a second conductive fabric which are distributed in a layered manner, wherein friction between the first conductive fabric and the second conductive fabric realizes electricity generation;
The first conductive fabric and the second conductive fabric are both made by adopting a recombinant weaving process, one surface of the first conductive fabric shows Yi Shidian sub-characteristics, and the other surface is an electrode; one side of the second conductive fabric is characterized by easy-to-obtain electronic characteristics, and the other side is an electrode;
the first conductive fabric adopts a warp double structure, the yarns of the dielectric material with volatile electrons are surface warp yarns and weft yarns, and the conductive yarns are inner warp yarns; the second conductive fabric adopts a warp double structure, the dielectric material yarns with easy-to-obtain electrons are surface warp yarns and weft yarns, and the conductive yarns are inner warp yarns.
3. The friction nano-generating fabric according to claim 2, wherein the diameter of the volatile and the available electric yarns is larger than that of the conductive yarns, and the surface warp is completely covered with the inner warp.
4. A friction nano electricity generating fabric according to claim 1 or 2, wherein the yarn material of the dielectric material of the volatile electronics is wool yarn, silk, cotton yarn, nylon 6 or nylon 66.
5. A friction nano electricity generating fabric according to claim 1 or 2, wherein the yarn material of the dielectric material from which electrons are easily obtained is polytetrafluoroethylene or polyvinylidene fluoride.
6. The friction nano power generation fabric according to claim 1 or 2, wherein the conductive yarn is silver-plated yarn, metal wire, metal blended yarn, graphene yarn or carbon nanotube yarn.
7. A friction nano-generating device, characterized by comprising the friction nano-generating fabric according to any one of claims 1 to 6.
8. A wearable device comprising the friction nano-generating device of claim 7.
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| CN109750403A (en) * | 2017-11-01 | 2019-05-14 | 北京纳米能源与系统研究所 | Power-generating fabrics, wearable devices, and sensors based on triboelectric nanogenerators |
| CN112261870A (en) * | 2019-05-21 | 2021-01-22 | 世联株式会社 | Grass-control sheet and method for producing the same |
| CN117595703A (en) * | 2023-12-05 | 2024-02-23 | 大连工业大学 | Three-dimensional woven friction nano generator with interval structure and preparation method thereof |
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| CN106537623A (en) * | 2014-04-16 | 2017-03-22 | 帝人株式会社 | Transducer which uses fibers and uses electric signal as output or input |
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