An elastic, electrically conductive yarn based on a loop reed braiding structure and its preparation method

Abstract

This application discloses an elastic triboelectric yarn based on a loop reed weaving structure and its preparation method, relating to the field of smart textiles and clothing. The elastic triboelectric yarn prepared using the method described in this application forms a basic reed hole structure within the loop reed elastic yarn group, which is key to achieving elastic elongation. Two elastic triboelectric yarns with different electronegativity in the power-generating yarn group are inserted into the reed hole structure according to a certain pattern, forming a multi-level loop reed structure. Under the action of various forces such as stretching and compression, the elastic triboelectric yarn generates electricity through the frictional effect of the elastic triboelectric yarns during contact and separation. While ensuring good tensile performance, it achieves self-generating power, enabling independent power generation from a one-dimensional single yarn. This compensates for the lack of self-powered power in the wearable industry. Furthermore, the resulting elastic triboelectric yarn has good tensile performance, high power generation stability, good durability, and light weight, making it suitable for wearable smart devices such as defibrillator vests, ECG sports clothing, and smart health care clothing.

Description

Technical Field

[0001] This application relates to the field of smart textiles and apparel, and in particular to an elastic electric yarn based on a loop reed weave structure and its preparation method. Background Technology

[0002] Currently, based on the power generation carrier, textiles that generate electricity based on the triboelectric effect mainly fall into two categories: The first category consists of two or more layers of fabric with different electronegativity in three-dimensional space. Under mechanical force, contact friction and relative movement occur between the different fabric planes, and charge transfer occurs between the fabric layers, achieving self-generation. The second category consists of fabrics woven from yarns with different electronegativity in a two-dimensional plane. Under mechanical force, the yarns with different electronegativity come into contact and slide against each other, completing the self-generation process. In other words, current development of triboelectric textiles mainly focuses on two-dimensional and three-dimensional scales, generating electricity through "surface-to-surface" and "line-to-line" interactions. The forms are relatively simple, and the structures are relatively complex. Summary of the Invention

[0003] In response to the aforementioned problems and technical needs, the applicant has proposed an elastic, electrically conductive yarn based on a loop reed weave structure and its preparation method. The technical solution of this application is as follows:

[0004] An elastic electric yarn based on a loop reed weaving structure, the elastic electric yarn includes a loop reed elastic yarn group and a power generating yarn group, the loop reed elastic yarn group includes two elastic yarns, the two elastic yarns are spirally intertwined to form multiple continuously arranged reed holes;

[0005] The power-generating yarn group includes cathode elastic triboelectric yarn and anode elastic triboelectric yarn with different electronegativity. Two elastic triboelectric yarns in the power-generating yarn group are sequentially and continuously inserted into the various reed holes formed by the loop elastic yarn group. Two elastic triboelectric yarns in the same power-generating yarn group are sequentially and continuously inserted into the same reed hole.

[0006] The two elastic triboelectric yarns in the power generation yarn group are used to connect electrical devices or energy storage devices. During the reciprocating stretching process of the elastic triboelectric yarns, the two elastic triboelectric yarns in the power generation yarn group continuously contact and separate, and complete charge transfer to output electrical energy to the electrical devices or energy storage devices.

[0007] The further technical solution is that the elastic triboelectric yarn includes N groups of generating yarns. The two elastic triboelectric yarns in the same generating yarn group are inserted into two adjacent reed holes with an interval of N-1 reed holes. The elastic triboelectric yarns in different generating yarn groups are inserted into different reed holes according to the same reed insertion rule, and N≥2.

[0008] The further technical solution is characterized in that two elastic triboelectric yarns in any i-th generating yarn group are sequentially and continuously inserted into i+k*N reed holes formed by the reed elastic yarn group, where 1≤i≤N, and k is an integer parameter with an initial value of 0 and continuously taking values.

[0009] A further technical solution involves roughening the surface of each elastic triboelectric yarn.

[0010] A further technical solution is that two elastic triboelectric yarns in the same power-generating yarn group are inserted into the same reed hole in opposite reed-threading directions, and the surfaces of the two elastic conductive yarns are in contact and can slide against each other.

[0011] A further technical solution is that, for any two elastic triboelectric yarns in a single power-generating yarn group:

[0012] When two elastic triboelectric yarns are in complete contact and rub against each other, the anode elastic triboelectric yarn loses electrons and the cathode elastic triboelectric yarn absorbs electrons, and the two elastic triboelectric yarns are in electrostatic equilibrium.

[0013] When the two elastic triboelectric yarns tend to separate from the contact state, the potential of the cathode elastic triboelectric yarn decreases, and the electrons absorbed by the cathode elastic triboelectric yarn flow through the electrical device or energy storage device and are guided to the ground; until the two elastic triboelectric yarns are completely separated, the two elastic triboelectric yarns return to the electrostatic equilibrium state.

[0014] When two elastic triboelectric yarns move from a separated state to a contact state, the potential of the cathode elastic triboelectric yarn increases, and electrons flow from the ground through the electrical device or energy storage device to the cathode elastic triboelectric yarn.

[0015] A method for preparing elastic electric yarn based on a loop reed weave structure, the method comprising:

[0016] Cathodic elastic triboelectric yarns and anodic elastic triboelectric yarns were prepared by using elastomer materials with two materials having different electronegativity.

[0017] A multi-level loop reed structure is formed by weaving cathode elastic triboelectric yarn, anode elastic triboelectric yarn, and two elastic yarns. In the multi-level loop reed structure, the two elastic yarns are spirally intertwined to form multiple continuously arranged reed holes, which constitute the loop reed elastic yarn group. The size of the reed holes can be adjusted. The cathode elastic triboelectric yarn and the anode elastic triboelectric yarn are sequentially and continuously passed into each reed hole formed by the loop reed elastic yarn group to form a power generating yarn group. The cathode elastic triboelectric yarn and the anode elastic triboelectric yarn are passed into the same reed hole.

[0018] By extracting electrical signals from the cathode elastic triboelectric yarn and the anode elastic triboelectric yarn, an elastic triboelectric yarn is prepared.

[0019] A further technical solution is that the method for preparing the cathode elastic triboelectric yarn and the anode elastic triboelectric yarn includes:

[0020] An anodic elastic triboelectric yarn is prepared by mixing an elastomer material with an anodic triboelectric material, using a metal conductive wire as the core material, and extruding a core-sheath structure anodic yarn using an extruder.

[0021] A cathode yarn mixture is obtained by mixing an elastomer material with a cathode triboelectric material. A core material is used as the core layer material, and a core-sheath structure cathode yarn is extruded using an extruder to prepare a cathode elastic triboelectric yarn.

[0022] A further technical solution is that the method for preparing the cathode elastic triboelectric yarn and the anode elastic triboelectric yarn also includes:

[0023] An anode elastic triboelectric yarn is prepared by passing the extruded core-sheath structure anode yarn through a bidirectional abrasive roller and roughening the surface.

[0024] The extruded core-sheath structure of the cathode yarn is passed through a bidirectional abrasive roller and its surface is roughened to prepare the cathode elastic triboelectric yarn.

[0025] The further technical solution is that the multi-level loop reed structure formed by weaving includes N groups of power generating yarns. The two adjacent reed holes through which the two elastic triboelectric yarns in the same power generating yarn group are inserted are spaced N-1 reed holes apart. The elastic triboelectric yarns in different power generating yarn groups are inserted into different reed holes according to the same reed insertion rule.

[0026] The beneficial technical effects of this application are:

[0027] This application discloses an elastic triboelectric yarn based on a loop reed weaving structure and its preparation method. The elastic triboelectric yarn prepared using the method of this application forms a basic reed hole structure in the loop reed elastic yarn group, which is the key to the elastic triboelectric yarn achieving elastic elongation. Two elastic triboelectric yarns with different electronegativity in the power generation yarn group are inserted into the reed hole structure according to a certain pattern to form a multi-level loop reed structure. Under the action of stretching and compression, the elastic triboelectric yarn achieves self-generation function through the triboelectric effect during the contact and separation process of the elastic triboelectric yarn, while ensuring good tensile performance of the elastic triboelectric yarn. It can realize independent power generation of a one-dimensional single yarn, making up for the shortcomings of the industry. Moreover, the elastic triboelectric yarn obtained in this way has good tensile performance, high power generation stability, good durability, and light weight, and can be used in wearable smart devices such as defibrillation vests, ECG sports clothes, and smart health care clothing.

[0028] Furthermore, the elastic triboelectric yarn of this application organically combines elastic yarn and elastic triboelectric yarn. The special multi-level reed weaving structure ensures that the dielectric density of the power-generating yarn does not change significantly during stretching, resulting in excellent power generation stability and high power output. Moreover, the preparation method of the elastic triboelectric yarn of this application is short and low-cost, and can be used for mass production. Attached Figure Description

[0029] Figure 1 This is a partial structural schematic diagram of the elastic electrostatic yarn in one embodiment of this application.

[0030] Figure 2 This is a flowchart of a method for preparing elastic electrostatic yarn according to one embodiment of this application.

[0031] Figure 3 This is a schematic diagram illustrating the power generation principle of the cathode elastic triboelectric yarn and the anode elastic triboelectric yarn in each power generation yarn group.

[0032] Figure 4 This is a schematic diagram of the preparation process of elastic electrostatic yarn in one example of this application. Detailed Implementation

[0033] The specific embodiments of this application will be further described below with reference to the accompanying drawings.

[0034] This application discloses an elastic electric yarn based on a loop reed weave structure. Please refer to [reference needed]. Figure 1 The elastic electric yarn includes a loop reed elastic yarn group 1 and a power-generating yarn group 2.

[0035] The loop reed elastic yarn group 1 includes two elastic yarns 11 and 12, which are spirally intertwined to form multiple continuously arranged reed holes, the size of which is adjustable.

[0036] The power-generating yarn group 2 includes a cathode elastic triboelectric yarn 21 and an anode elastic triboelectric yarn 22, which have different electronegativity. The two elastic triboelectric yarns in the power-generating yarn group are sequentially and continuously threaded into the various reed holes formed by the loop reed elastic yarn group.

[0037] Each elastic triboelectric yarn is sequentially and continuously threaded into the various reed holes formed by the loop elastic yarn group 1. According to the principle of threading, the same elastic triboelectric yarn is threaded in opposite directions in two adjacent reed holes, that is, the elastic triboelectric yarn is threaded from the inside out of one reed hole and then from the outside in the next reed hole. The two elastic triboelectric yarns in the same generating yarn group are sequentially and continuously threaded into the same reed hole. In order to achieve a better reed threading effect, the two elastic triboelectric yarns in the same generating yarn group are threaded into the same reed hole in opposite directions. That is, for example, if the cathode elastic triboelectric yarn 21 is threaded from the inside out of one reed hole, then the anode elastic triboelectric yarn 22 is threaded from the outside in the same reed hole. The surfaces of the two elastic conductive yarns are in contact and can slide against each other.

[0038] The two elastic triboelectric yarns in the power-generating yarn group 2 are used to connect to electrical devices or energy storage devices. The reed elastic yarn group 1 can change its yarn length under external force, which is the key part that gives the elastic triboelectric yarn its tensile properties. During the reciprocating stretching process of the elastic triboelectric yarn, the two elastic triboelectric yarns in the power-generating yarn group continuously contact, rub, and separate, completing charge transfer to output electrical energy to the electrical devices or energy storage devices. The process includes the following steps; please refer to the documentation. Figure 3 :

[0039] When two elastic triboelectric yarns come into complete contact and rub against each other, the anode triboelectric yarn loses electrons and the cathode triboelectric yarn absorbs electrons. Because the two elastic triboelectric yarns are in close contact, they are in a state of electrostatic equilibrium, and no electrons are transferred. Figure 3 As shown in (a) in the figure.

[0040] When two elastic triboelectric yarns tend to separate from their contact state, the potential of the cathode triboelectric yarn decreases, and the electrons absorbed by the cathode triboelectric yarn flow through the electrical device or energy storage device and are guided to the ground, such as... Figure 3 As shown in (b) above. Until the two elastic triboelectric yarns are completely separated, they return to a state of electrostatic equilibrium, with no electron transfer, as... Figure 3 As shown in (c) in the figure.

[0041] When two elastic triboelectric yarns move from a separated state to a contact state, the potential of the cathode triboelectric yarn increases, and electrons flow from the ground through the electrical device or energy storage device to the cathode triboelectric yarn, such as... Figure 3 As shown in (d) in the diagram. When the two elastic triboelectric yarns are in complete contact, the structure recovers to its original state as shown in the diagram. Figure 3 As shown in (a), the above process is repeated cyclically to stably output alternating current.

[0042] As described above, charge transfer is accomplished through the contact friction of two elastic triboelectric yarns. Therefore, in one embodiment, the surface of each elastic triboelectric yarn is roughened to facilitate friction between the elastic triboelectric yarns, which can better facilitate charge transfer and make the power output more stable.

[0043] Based on the elastic triboelectric yarn structure of this application, in one embodiment, the elastic triboelectric yarn may contain only one set of power-generating yarn group 2. In this power-generating yarn group 2, the two elastic triboelectric yarns are generally continuously threaded into consecutively arranged reed holes, that is, adjacent reed holes into which each elastic triboelectric yarn is threaded are arranged adjacently. Alternatively, the elastic triboelectric yarns may be threaded into the reed holes at intervals, that is, several other reed holes are spaced apart between adjacent reed holes into which each elastic triboelectric yarn is threaded. The number of intervening reed holes can be fixed or varied. However, in order to increase the contact friction between the elastic triboelectric yarns and maximize the electrical energy output, they are generally continuously threaded into consecutively arranged reed holes.

[0044] In another embodiment, the elastic electric yarn includes multiple sets of power-generating yarns, such as... Figure 1 In the elastic triboelectric yarn, not only is there a power-generating yarn group 2, but also a power-generating yarn group 3. Each power-generating yarn group contains two elastic triboelectric yarns, such as... Figure 1 The generating yarn group 3 includes cathode elastic triboelectric yarn 31 and anode elastic triboelectric yarn 32. When multiple generating yarn groups are included, each generating yarn group is threaded according to the same threading pattern, forming an interwoven structure.

[0045] That is, when the elastic triboelectric yarn includes N groups of generating yarns, the interval between two adjacent reed holes through which two elastic triboelectric yarns in the same generating yarn group pass is N-1 reed holes, and the elastic triboelectric yarns in different generating yarn groups pass through different reed holes according to the same reed-passing rule, where N≥2. Therefore, any two elastic triboelectric yarns in the i-th generating yarn group are sequentially and continuously passed through the (i+k*N)-th reed hole formed by the looped elastic yarn group, where 1≤i≤N, and k is an integer parameter with an initial value of 0 and continuously taking values. In this way, each reed hole is filled with elastic triboelectric yarn, the weave structure is tight, and the elastic triboelectric yarns in different generating yarn groups do not affect each other.

[0046] For example, in such Figure 1 In the structure, when N=2, the two elastic triboelectric yarns in the power-generating yarn group 2 are sequentially inserted into the 1st reed hole, the 3rd reed hole, the 5th reed hole, the 7th reed hole, and so on. Meanwhile, the two elastic triboelectric yarns in the power-generating yarn group 3 are sequentially inserted into the 2nd reed hole, the 4th reed hole, the 5th reed hole, the 6th reed hole, and so on.

[0047] The reed threading effect is similar when the number of N is larger. For example, when there are three sets of power-generating yarns, the two elastic friction electric yarns of the first power-generating yarn set are threaded into the 1st, 4th, 7th, 10th... reed holes in sequence. The two elastic friction electric yarns of the second power-generating yarn set are threaded into the 2nd, 5th, 8th, 11th... reed holes in sequence. The two elastic friction electric yarns of the third power-generating yarn set are threaded into the 3rd, 6th, 9th, 12th... reed holes in sequence.

[0048] This application also discloses a method for preparing elastic electric yarn based on a loop reed braiding structure. This method can be used to prepare elastic electric yarn with the structure disclosed in this application. Please refer to [link / reference]. Figure 2 The flowchart shown illustrates the preparation method, which includes:

[0049] Step 1: Cathodic and anodic triboelectric yarns are prepared by using an elastomer material and two materials with different electronegativity, respectively. This includes:

[0050] An anodic triboelectric yarn is prepared by mixing an elastomer material with an anodic triboelectric material to obtain an anodic yarn mixture, using a metal conductive wire as the core material, and extruding a core-sheath structure anodic yarn using an extruder. The anodic triboelectric materials used include polyurethane (PU), polyamide (PA6 or PA66), and aluminum (Al).

[0051] A cathode yarn mixture is prepared by mixing an elastomer material with a cathode triboelectric material. Using a metal conductive wire as the core material, a core-sheath structure cathode yarn is extruded from the cathode yarn mixture using an extruder, thus producing a cathode elastic triboelectric yarn. The cathode triboelectric materials used include polytetrafluoroethylene (PTFE), polyvinylidene fluoride (PVDF), polystyrene (PS), polyethylene terephthalate (PET), and ethylene-vinyl acetate copolymer (EVA).

[0052] The elastomer materials used include acrylonitrile-butadiene-styrene copolymer (ABS), styrene-butadiene-styrene block copolymer (SBS), thermoplastic polyurethane (TPU), and polyolefin (POE).

[0053] In another embodiment, to optimize the frictional effect between the elastic triboelectric yarns, the extruded anode yarn is not directly used as the anode elastic triboelectric yarn, and similarly, the extruded cathode yarn is not directly used as the cathode elastic triboelectric yarn. The process further includes: passing the extruded core-sheath structured anode yarn through a bidirectional abrasive roller to roughen its surface, thereby preparing the anode elastic triboelectric yarn. Similarly, passing the extruded core-sheath structured cathode yarn through a bidirectional abrasive roller to roughen its surface, thereby preparing the cathode elastic triboelectric yarn.

[0054] Step 2: A multi-level loop reed structure is formed by weaving the cathode elastic triboelectric yarn, the anode elastic triboelectric yarn, and two elastic yarns. In the multi-level loop reed structure, the two elastic yarns are spirally intertwined to form multiple continuously arranged reed holes, which constitute the loop reed elastic yarn group. The cathode elastic triboelectric yarn and the anode elastic triboelectric yarn are sequentially and continuously inserted into each reed hole formed by the loop reed elastic yarn group to form a power generating yarn group, and the cathode elastic triboelectric yarn and the anode elastic triboelectric yarn are inserted into the same reed hole.

[0055] When multiple power-generating yarn groups need to be made, the multi-level loop reed structure formed by weaving includes N power-generating yarn groups. The two elastic triboelectric yarns used to form the same power-generating yarn group are inserted into adjacent reed holes with an interval of N-1 reed holes. The elastic triboelectric yarns used in different power-generating yarn groups are inserted into different reed holes according to the same reed insertion rule.

[0056] This results in a multi-level reed structure, including reed holes formed by the elastic reed yarn group. This is the main part of the multi-level reed structure. Inserting elastic triboelectric yarns into the reed holes creates a new first-level reed structure, thus forming a multi-level reed structure. For example, in... Figure 1 In the middle, the loop reed elastic yarn group 1 forms the first-level loop reed structure, the power-generating yarn group 2 forms the second-level loop reed structure, and the power-generating yarn group 3 forms the third-level loop reed structure. The second-level loop reed structure and the third-level loop reed structure complement each other in the position of the first-level loop reed structure.

[0057] Step 3: Extract electrical signals from the cathode elastic triboelectric yarn and the anode elastic triboelectric yarn to prepare elastic triboelectric yarn.

[0058] In one preparation example, the preparation method includes the following steps; please refer to [reference needed]. Figure 4 :

[0059] (1) Preparation of cathode elastic triboelectric yarn. Acrylonitrile-butadiene-styrene copolymer (ABS) was selected as the elastomer material, and polytetrafluoroethylene (PTFE) was selected as the cathode triboelectric material. A certain amount of PTFE masterbatch and acrylonitrile-butadiene-styrene copolymer (ABS) were uniformly mixed at a mass ratio of 60:40 to obtain the cathode yarn mixture.

[0060] The cathode yarn mixture wound on the yarn feeding roller 41 is fed into the single screw extruder 42, and a 316 stainless steel wire with a diameter of 0.1 mm is used as the core wire. The extrusion temperature is set to 350℃, the extrusion speed is 10 cm / min, and the extruder nozzle diameter is 0.4 mm. The extruded cathode yarn has a core-sheath structure.

[0061] The extruded core-sheath structure of the cathode yarn is passed through the bidirectional abrasive roller 43, with vertical pressure of 10.0N and horizontal pressure of 10.0N. The yarn storage roller collects the cathode elastic triboelectric yarn after surface roughening treatment and winds it onto the yarn storage roller 44.

[0062] (2) Preparation of anodic elastic triboelectric yarn. Acrylonitrile-butadiene-styrene copolymer (ABS) was selected as the elastomer material, and polyurethane (PU) was selected as the anodic triboelectric material. A certain amount of polyurethane (PU) masterbatch and acrylonitrile-butadiene-styrene copolymer (ABS) were uniformly mixed at a mass ratio of 60:40 to obtain the anodic yarn mixture.

[0063] Similarly, the anode yarn mixture wound on the yarn feeding roller 41 is fed into the single screw extruder 42, and a 316 stainless steel wire with a diameter of 0.1 mm is used as the core wire. The extrusion temperature is set to 180℃, the extrusion speed is 10 cm / min, and the extruder nozzle diameter is 0.4 mm, resulting in a core-sheath structure anode yarn.

[0064] The extruded core-sheath structure anode yarn is passed through bidirectional abrasive roller 43, with vertical pressure of 10.0N and horizontal pressure of 10.0N. The yarn storage roller collects the anode elastic triboelectric yarn after surface roughening treatment and winds it onto the yarn storage roller 44.

[0065] (3) Use a rewinding machine 45 to wind the large roll of elastic triboelectric yarn wound on the yarn storage roller 44 into a small roll 46 for subsequent yarn weaving.

[0066] (4) Design the spiral intertwining structure of the reed elastic yarn group and the threading pattern of the elastic triboelectric yarn, and input them into the braiding program of the wire type braiding.

[0067] (5) Select 40D spandex yarn as elastic yarn, and use the small roll of 46 anode elastic triboelectric yarn and cathode elastic triboelectric yarn prepared above. Select wire braiding machine 47 and braid according to the braiding program in step (5). The raw material configuration is 2 tubes of spandex yarn, 2 tubes of anode elastic triboelectric yarn, and 2 tubes of cathode elastic triboelectric yarn. The braiding speed is 1.0m / min and the tension of the yarn storage disc is 5.0N.

[0068] The above descriptions are merely preferred embodiments of this application, and this application is not limited to the above embodiments. It is understood that other improvements and variations that can be directly derived or conceived by those skilled in the art without departing from the spirit and concept of this application should be considered to be included within the protection scope of this application.

Claims

1. An elastic electro-textile yarn based on a gill weaving structure, characterized in that, The elastic frictional yarn comprises a reed elastic yarn group and a power generation yarn group, the reed elastic yarn group comprises two elastic yarns, and the two elastic yarns are spirally interlaced to form a plurality of continuously arranged reed holes; The power generation yarn group comprises cathode elastic frictional yarns and anode elastic frictional yarns with different electronegativities, and the two elastic frictional yarns in the power generation yarn group are sequentially and reciprocally continuously inserted into each reed hole formed by the reed elastic yarn group, and the two elastic frictional yarns in the same power generation yarn group are sequentially and reciprocally continuously inserted into the same reed hole; The two elastic frictional yarns in the power generation yarn group are used for connecting an electric device or an energy storage device, and in the reciprocating stretching process of the elastic frictional yarn, the two elastic frictional yarns in the power generation yarn group continuously contact and separate to complete charge transfer and output electric energy to the electric device or the energy storage device.

2. The elastomeric friction yarn of claim 1, wherein, The elastic frictional yarn comprises N power generation yarn groups, the two elastic frictional yarns in the same power generation yarn group are inserted into two adjacent reed holes with an interval of N-1 reed holes, the elastic frictional yarns in different power generation yarn groups are inserted into different reed holes according to the same reed insertion rule, and N≥2.

3. The elastomeric friction yarn of claim 2, wherein, The two elastic frictional yarns in any i-th power generation yarn group are sequentially and reciprocally continuously inserted into i+k*N reed holes formed by the reed elastic yarn group, 1≤i≤N, and k is an integer parameter with a starting value of 0 and continuous values.

4. The elastomeric friction yarn of claim 1, wherein, The surface of each elastic frictional yarn is roughened.

5. The elastomeric friction yarn of claim 1, wherein, The two elastic frictional yarns in the same power generation yarn group are inserted into the same reed hole in opposite directions, and the surfaces of the two elastic conductive yarns are in contact and can slide relative to each other.

6. The elastomeric friction yarn of claim 1, wherein, For the two elastic frictional yarns in any power generation yarn group: When the two elastic frictional yarns are in complete contact and friction, the anode elastic frictional yarn loses electrons, the cathode elastic frictional yarn absorbs electrons, and the two elastic frictional yarns are in electrostatic equilibrium; When the two elastic frictional yarns tend to separate from the contact state, the potential of the cathode elastic frictional yarn decreases, the absorbed electrons of the cathode elastic frictional yarn flow to the ground through the electric device or the energy storage device; until the two elastic frictional yarns are completely separated, the two elastic frictional yarns are in electrostatic equilibrium again; When the two elastic frictional yarns tend to contact from the separated state, the potential of the cathode elastic frictional yarn increases, and the electrons flow from the ground to the cathode elastic frictional yarn through the electric device or the energy storage device.

7. A method of manufacturing an elastic electro-textile yarn based on a gill weaving structure, characterized in that, The preparation method comprises: The cathode elastic frictional yarn and the anode elastic frictional yarn are prepared by using an elastomer material and two materials with different electronegativities, respectively; The cathode elastic frictional yarn, the anode elastic frictional yarn and the two elastic yarns are woven to form a multi-stage reed structure, in the multi-stage reed structure, the two elastic yarns are spirally interlaced to form a plurality of continuously arranged reed holes to constitute a reed elastic yarn group, the size of the reed hole is adjustable, the cathode elastic frictional yarn and the anode elastic frictional yarn are sequentially and reciprocally continuously inserted into each reed hole formed by the reed elastic yarn group to form a power generation yarn group, and the cathode elastic frictional yarn and the anode elastic frictional yarn are inserted into the same reed hole; The elastic triboelectric yarns are subjected to electric signal extraction to obtain the elastic triboelectric yarns.

8. The production method according to claim 7, characterized by, The method for preparing the cathode elastic triboelectric yarn and the anode elastic triboelectric yarn comprises the following steps: An elastomer material is mixed with an anode triboelectric material to obtain an anode yarn mixture, a metal conductive wire is used as a core layer material, an extruder is used to extrude the anode yarn mixture to obtain an anode elastic triboelectric yarn with a core-sheath structure. An elastomer material is mixed with a cathode triboelectric material to obtain a cathode yarn mixture, a metal conductive wire is used as a core layer material, an extruder is used to extrude the cathode yarn mixture to obtain a cathode elastic triboelectric yarn with a core-sheath structure.

9. The production method according to claim 8, characterized by, The method for preparing the cathode elastic triboelectric yarn and the anode elastic triboelectric yarn further comprises the following steps: The extruded anode yarn with the core-sheath structure is passed through a bidirectional grinding roller to perform roughening treatment on the surface to obtain the anode elastic triboelectric yarn. The extruded cathode yarn with the core-sheath structure is passed through a bidirectional grinding roller to perform roughening treatment on the surface to obtain the cathode elastic triboelectric yarn.

10. The method of claim 7, wherein, In the multi-stage circle reed structure formed by weaving, N groups of power generation yarns are included, the interval between two adjacent reed holes through which two elastic triboelectric yarns in the same power generation yarn group pass is N-1 reed holes, and the elastic triboelectric yarns in different power generation yarn groups are arranged in different reed holes according to the same reed insertion rule.

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