KR20190033840A - Self-generating flooring using triboelectric power generation and its manufacturing method - Google Patents

Abstract

The present invention relates to a self-generating floor material using triboelectric power generation and a manufacturing method thereof, and more specifically, to a self-generating floor material using triboelectric power generation and a manufacturing method thereof, which use triboelectric power generation having the high power generation when walking in a space where the self-generating floor material is installed.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a self-generating floor material using triboelectric power generation,

The present invention relates to a self-generating floor material using triboelectric power generation and a method of manufacturing the same, and more particularly, to a self-generating floor material using triboelectric power generated when walking in a space provided with the self- And a manufacturing method thereof.

Various attempts have been made to develop an energy harvesting technique that converts external energy applied to the electric energy by using a photoelectric, piezoelectric or triboelectric device and accumulates it come.

In the case of solar power generation, which is a representative example of the energy harvesting technology, a commercialized power generation panel is produced. However, since the power generation amount of the panel is highly dependent on the amount of sunshine, the power generation is not uniform, It was difficult to apply in a space that does not exist.

In addition, in the case of power generation using the piezoelectric element disclosed in Korean Patent No. 10-1489998, since the ceramic and the like used in the device are robust, flexibility and power generation amount are low, and therefore, it is applied to commercial flooring in commercial or residential space There was no problem.

KR 10-1489998 B (Notification day: 2015.02.06)

It is an object of the present invention to provide a self-generating flooring material which can be applied to an underground space not irradiated with light or an indoor / outdoor space having a small amount of light irradiation, and a method for manufacturing the same. A lower electrode layer sequentially stacked from the bottom; Transport layer; Elastic layer; An active layer; An upper electrode layer; A self-generating flooring material using triboelectric power generation having high power generation through friction between the active layer and the transmission layer when walking in a space where the self-generating flooring material is manufactured, Method.

In order to achieve the above object,

A triboelectric generator (100);

And a decorative material layer (200) laminated on the triboelectric generator (100).

In this case, the triboelectric generator 100 includes a lower electrode layer 110 sequentially stacked from below; A transfer layer 120; An elastic layer 130; An active layer 140; An upper electrode layer 150; . ≪ / RTI >

Alternatively, the triboelectric generator 100 may include a transfer layer 120 sequentially stacked from below; An elastic layer 130; An active layer 140; An upper electrode layer 150; . ≪ / RTI >

Alternatively, the triboelectric generator 100 may include a lower electrode layer 110 sequentially stacked from below; An elastic layer 130; An active layer 140; An upper electrode layer 150; . ≪ / RTI >

In addition,

(a) manufacturing the triboelectric generator (100);

(b) laminating a decorative material layer (200) on the triboelectric generator (100); (1) according to the present invention.

The self-generated flooring according to the present invention has the effect of accumulating the triboelectricity generated by the walking and using it as an environmentally friendly alternative energy source.

Further, the self-generated flooring according to the present invention has a high power generation efficiency.

In addition, the self-generated flooring according to the present invention can be used as an always-on power source without power generation limitation through power generation using friction.

Further, the manufacturing method of the self-generating floor material according to the present invention can be modularized and large-area, and thus can be manufactured in various structures.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view showing a laminated structure of a self-generating floor material in which a triboelectric generator is laminated on a floor material. FIG.
Figure 2a is a side cross-sectional view schematically showing a triboelectric generator.
FIG. 2B is a cross-sectional side view schematically illustrating a charging phenomenon generated by contact between an active layer and a transmission layer due to an external pressure caused by walking or the like on the triboelectric generator of FIG. 2A.
FIG. 2C is a view showing a current flowing when the active layer and the transfer layer are separated from each other after the external pressure is removed from the triboelectric generator of FIG. 2B.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view showing a laminated structure of a self-generating floor material in which a triboelectric generator is laminated on a floor material. FIG.

Referring to FIG. 1, a self-generating flooring 1 according to an embodiment of the present invention includes a triboelectric generator 100; A decorative layer 200 laminated on the triboelectric generator 100; .

The configuration of the present invention will be described in detail as follows.

Referring to FIG. 2A, the triboelectric generator 100 includes a lower electrode layer 110 sequentially stacked from below; A transfer layer 120; An elastic layer 130; An active layer 140; An upper electrode layer 150; . ≪ / RTI >

The lower electrode layer 110 and the upper electrode layer 150 may be a metal having a high free electron density.

(Al), copper (Cu), magnesium (Mg), tungsten (W), iron (Fe), platinum (Pt), gold (Au), silver (Ag), tantalum And may be one selected from the group consisting of titanium (Ti), palladium (Pd), ruthenium (Ru), and alloys thereof.

The thickness of the lower electrode layer 110 and the upper electrode layer 150 may be in the form of a foil or a plate having a thickness of 1-1000 mu m, 10-900 mu m, or 10-300 mu m. If it is less than the above range, the durability is lowered due to shrinkage and expansion due to the temperature change, and when it exceeds the above range, it becomes too heavy and it is difficult to fabricate a stable structure.

The materials of the lower electrode layer 110 and the upper electrode layer 150 may be the same or different.

The transmission layer 120 and the active layer 140 may be formed on the lower electrode layer 110 and below the upper electrode layer 150, respectively.

One of the transfer layer 120 and the active layer 140 is easy to lose electrons when rubbing and is easily charged with electrons easily and the other is easily charged. The active layer 140 may be negatively charged, one of which is positive and the other of which is negatively charged due to the difference in electronegativity during rubbing.

The transmission layer 120 and the active layer 140 may be formed of a material such as polytetrafluoroethylene, perfluoroalkoxy alkane, fluorinated ethylene propylene, polyacrylonitrile, Polyacrylonitrile-vinyl chloride, polybisphenol carbonate, polychloroether, polyvinylidine chloride, polystyrene, polyethylene, polyacrylonitrile, and the like. Polypropylene, polyimide, Kapton, polyvinyl chloride, polydimethylsiloxane, and nylon. It is also possible to use one or more selected from the group consisting of polypropylene, polyimide, Kapton, polyvinyl chloride, polydimethylsiloxane and nylon.

In one embodiment of the transmission layer 120 and the active layer 140, the transmission layer 120 is nylon, and the active layer 140 is a Teflon series of perfluoroalkoxyalkane or polytetrafluoroethylene. .

The transmission layer 120 may be a metal nylon plated on the lower surface of the transmission layer 120 and the active layer 140 may be formed of a perfluoroalkoxyalkane Or a Teflon series of polytetrafluoroethylene.

In this case, since the metal plated on the lower surface of the nylon of the transfer layer 120 serves as the lower electrode layer 110, the electric balance movement phenomenon occurs due to the imbalance of the charge with the upper electrode layer 150, The lower electrode layer 110 may be omitted.

The metal may be the same as the metal used for the lower electrode layer 110 or the upper electrode layer 150.

In another specific example of the transmission layer 120 and the active layer 140, the active layer 140 may be a perfluoroalkoxyalkane, and the transmission layer 120 may be omitted.

In this case, when the active layer 140 is rubbed with the lower electrode layer 110, different charges are induced in the upper and lower sides of the lower electrode layer 110 due to the difference in electronegativity, The electric equilibrium movement phenomenon occurs and the current can flow.

In addition, the transmission layer 120 and the active layer 140 may be in the form of a film, a sheet, a fabric, or a nonwoven fabric.

The thickness of the transmission layer 120 may be 10-3000 μm, 500-2500 μm, or 1500-2500 μm. If the thickness is less than the above range, it is difficult to produce a flat structure. If the thickness exceeds the above range, the uniformity of the surface of the transmission layer 120 is lowered and the cost of raw materials is increased.

The thickness of the active layer 140 may be 1-1000 mu m, 10-500 mu m, or 10-200 mu m. When the thickness is less than the above range, it is difficult to produce a flat structure. If the thickness exceeds the above range, the surface uniformity of the active layer 140 is lowered and the cost of raw materials is increased.

Alternatively, the stacking positions of the transfer layer 120 and the active layer 140 may be reversed.

The elastic layer 130 of the triboelectric generator 100 according to the present invention is a layer positioned between the transmission layer 120 and the active layer 140 and may be a layer of the transmission layer 120 and the active layer 130 It is possible to make contact and separation possible.

More specifically, when normal pressure is applied to the decorative material layer 200 of the floor material, the elastic layer 130 contracts to allow the active layer 140 to contact the transmission layer 120, The elastic layer 130 may be recovered and the active layer 140 may be separated from the transmission layer 120. FIG. That is, the active layer 140 may be repeatedly brought into contact with and separated from the transfer layer 120 to generate triboelectricity.

The elastic layer 130 is not limited as long as it is a material having an elastic force. Examples of the elastic layer 130 include silicone (e.g., silicone sponge), polyvinyl chloride, polyethylene, ethylene vinyl acetate copolymer, , A foam of one kind of resin selected from the group consisting of polystyrene, polyurethane, and polyurethane.

Or natural rubber or silicone, polyolefin, polystyrene, polyester, polyvinyl chloride, polyamide, and urethane. And one type of synthetic rubber which is one kind of synthetic rubber.

The elastic layer 130 may have various shapes such as a sheet type, a mesh type, an arch type, and the like.

For example, if the elastic layer 130 is a mesh type, it may have a mesh spacing of 0.5 - 15 cm, or 1-10 cm. If the area is less than the above range, the contact area of the active layer 140 with the transmission layer 120 decreases and the power generation amount decreases. If the range is exceeded, the active layer 140 deteriorates in contact with the transmission layer 120, It is preferable to have a gap within the above range because friction is not generated and power generation amount is lowered.

The thickness of the elastic layer 130 may be 0.1-10 mm, 0.5-8 mm, or 1-5 mm. If the thickness of the active layer 140 is less than the above range, the separation of the active layer 140 from the transmission layer 120 is lowered, and the continuous generation of friction does not occur, It may be deformed, and it is preferable that it is within the above range.

2B, when the active layer 140 is brought into contact with the transfer layer 120 due to contraction of the elastic layer 130 due to external pressure caused by walking or the like, The active layer 140 may be negatively charged and the transfer layer 120 may be positively charged.

Referring to FIG. 2C, when the external pressure is released, the active layer 140 is separated from the transfer layer 120 by restoration of the elastic layer 130, and the upper electrode layer 150 and the lower electrode layer 110 by electrostatic induction.

At this time, electrical equilibrium movement occurs due to the unbalance of the generated charges, so that electrons can move from the lower electrode layer 110 to the upper electrode layer 150 to flow a current.

The generated current may be stored in a capacitor (not shown) and then used as a driving power source.

The decorative material layer 200 laminated on the triboelectric generator 100 may be a sheet, a tile, a floor, or a base plate as a commonly used flooring material.

The thickness of the decorative material layer 200 may be 0.1-20 mm, or 0.1-10 mm. If the lower limit of the above range is exceeded, the lower elastic layer 130 can not be shrunk to generate triboelectricity, so that the triboelectricity of the lower triboelectricity generator 100 is within the above range desirable.

The self-generated flooring according to the present invention has the effect of accumulating the triboelectricity generated by the walking and using it as an environmentally friendly alternative energy source.

Further, the self-generated flooring according to the present invention has a high power generation efficiency.

In addition, the self-generated flooring according to the present invention can be used as an always-on power source without power generation limitation through power generation using friction.

Next, a method of manufacturing the self-generating flooring material 1 of the present invention will be described in detail.

The manufacturing method of the self-generating flooring material (1)

(a) manufacturing a triboelectric generator (100);

(b) laminating a decorative material layer (200) on the triboelectric generator (100); .

The step (a) of manufacturing the triboelectric generator (100)

(a1) preparing a lower electrode layer 110 and an upper electrode layer 150;

(a2) depositing a transmission layer 120 on the lower electrode layer 110;

(a3) stacking an elastic layer 130 on the transfer layer 120;

(a4) stacking the active layer 140 on the elastic layer 130;

(a5) laminating the transfer layer 120, the elastic layer 130, and the active layer 140 in a laminated state;

(a6) stacking an upper electrode layer 150 on the active layer 140; .

The description of the lower electrode layer 110 and the upper electrode layer 150 in the above (a1) or (a6) is the same as described above, so the overlapping description will be omitted.

The transfer layer 120 and the active layer 140 may be formed by processing the materials of the transfer layer 120 and the active layer 140 described above in the form of a film, a sheet, a fabric, or a nonwoven fabric .

In (a3), the elastic layer 130 may be formed by processing the material of the elastic layer 130 described above into a sheet form through a T-die extrusion process or a calendering process.

Alternatively, in each of the layers (a2) to (a4), the step of laminating each layer may be a step of coating an adhesive between the layers, or laminating each layer by using an adhesive tape or an adhesive film on one side or both sides thereof.

The adhesive, the adhesive tape or the adhesive film used in the lamination may be any conventional adhesive, an adhesive tape or an adhesive film, and a description thereof will be omitted.

In (a5), heat or pressure may be applied to the laminate of the transfer layer 120, the elastic layer 130, and the active layer 140.

The temperature of the heat applied at the time of plywood is preferably 50-350 ° C, and preferably 60-280 ° C. If it is less than the above range, there is a problem that the plywood can not be smoothly performed. If it exceeds the above range, it may be damaged by heat damage, so it is preferable to apply heat within the above range.

In addition, it is preferable that the pressure applied to the plywood is 0.01 to 10 bar, preferably 2 to 8 bar. When it is less than the above range, the plywood efficiency is lowered, and if it exceeds the above range, it is preferable to apply the pressure within the above range because the layer may be damaged.

Alternatively, the step of stacking the transfer layer 120 on the lower electrode layer 110 in (a2) may include a step of coating or printing the material of the transfer layer 120 on the lower electrode layer 110 to form a layer.

Alternatively, the step of stacking the active layer 140 on the elastic layer 130 may include coating or printing the active layer 140 on the elastic layer 130.

The coating process may be a conventional commercialized coating process such as gravure coating, dip coating, bar coating, slat die coating, roll to roll coating.

Alternatively, in step (a3), the step of laminating the elastic layer 130 on the transfer layer 120 may include a step of extrusion-coating the elastic layer 130 on the transfer layer 120 by T-die coating .

When the decorative material layer 200 is a tile or a floor in the step (b), an adhesive is coated on the upper part of one module of the triboelectric generator 100 manufactured in (a), or an adhesive tape or an adhesive film And a tile or a floor may be laminated.

In the case where the decorative material layer 200 is a sheet or a planar sheet in the step (b), N pieces of the triboelectricity generator module 100 manufactured in the step (a) And then an adhesive is coated on the upper part thereof or a sheet or a laminate is laminated on one or both sides using an adhesive tape or an adhesive film.

The method of manufacturing the self-generating floor material according to the present invention can be modularized and large-sized, and thus can be manufactured in various structures.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention. Such changes and modifications are intended to be within the scope of the appended claims.

<Examples>

1. Triboelectric generator manufacturing

(Example 1)

A double-sided adhesive tape is attached to the upper electrode layer 110 using the material of each layer having the thickness shown in Table 1 below, and the transmission layer 120 is laminated on the tape.

Next, the adhesive tape is applied to the upper portion of the transfer layer 120, and the elastic layer 130 is laminated on the adhesive layer.

Next, the adhesive tape is attached to the upper portion of the elastic layer 130, and the active layer 140 is laminated on the adhesive tape.

Next, the tacky tape is attached to the active layer 140, and the upper electrode layer 150 is laminated on the adhesive layer to manufacture the triboelectric generator 100.

(Comparative Example 1)

A triboelectric generator (100) was manufactured in the same manner as in Example 1 except that a general iron spring instead of a silicon sponge was used as the elastic layer.

(Comparative Example 2)

The triboelectric generator 100 was manufactured in the same manner as in Example 1 except that the elastic layer was not provided.

thickness
(mm) Example 1 Comparative Example 1 Comparative Example 2 In the upper electrode layer 150, 0.12 Aluminum foil Aluminum foil Aluminum foil In the active layer 140, 0.05 Perfluoroalkoxyalkane (PFA) film
Perfluoroalkoxyalkane (PFA) film
Perfluoroalkoxyalkane (PFA) film
The elastic layer (130) 3 Silicone sponge
Iron spring - The transfer layer 120, 2 Nylon fabric plated with silver - Nylon fabric plated with silver In the lower electrode layer 110, 0.12 Aluminum foil Aluminum foil Aluminum foil

2. Manufacture of self-generating flooring

A self-supporting flooring 1 is produced by laminating a double-sided adhesive tape on the triboelectric generator manufactured in the above 1 and then laminating a decorative material layer 200 in the form of a sheet having a thickness of 4.5 mm.

<Experimental Example>

Voltage, current and instantaneous power were measured when the self-generating floor material 1 of Example 1 and Comparative Example 1-2 prepared above was stepped on, and is shown in Table 2 below.

Example 1 Comparative Example 1 Comparative Example 2 Voltage (V) 43.8 32.8 0 Current (mA) 0.096 0.056 0 Instantaneous power (mW) 4.2 1.84 0

As shown in Table 2, the self-generated flooring according to the present invention gives an instantaneous power (P) of 4.2 mW, while the self-generating flooring of Comparative Example 1 has an instantaneous power of 1.84 mW, It was found that the electric power generation amount was very low as compared with the power generation type flooring material and that the self generation flooring material of Comparative Example 2 did not contain the elastic layer and did not generate the triboelectricity.

1: Self-generating flooring material 100: Friction electric generator
200: a decorative material layer 110: a lower electrode layer
120: transmission layer 130: elastic layer 140: active layer 150: upper electrode layer

Claims (16)

A triboelectric generator (100);
A decorative layer 200 laminated on the triboelectric generator 100; Wherein the self-generating flooring is a self-generating flooring. The method according to claim 1,
The triboelectric generator includes a lower electrode layer 110 sequentially stacked from below; A transfer layer 120; An elastic layer 130; An active layer 140; An upper electrode layer 150; Wherein the self-generating flooring is a self-generating flooring. 3. The method of claim 2,
The lower electrode layer 110 and the upper electrode layer 150 may be formed of a metal such as aluminum (Al), copper (Cu), magnesium (Mg), tungsten (W), iron (Fe), platinum (Pt) Is a metal selected from the group consisting of tantalum (Ag), tantalum (Ta), titanium (Ti), palladium (Pd), ruthenium (Ru) and alloys thereof. 3. The method of claim 2,
Wherein the thickness of the lower electrode layer (110) and the upper electrode layer (150) is 1-1000 mu m. 3. The method of claim 2,
Wherein the transfer layer (120) is nylon or a nylon having metal plating on the lower surface thereof. 3. The method of claim 2,
Wherein the active layer (140) is a Teflon-based one selected from the group consisting of polytetrafluoroethylene and perfluoroalkoxyalkane. 3. The method of claim 2,
The elastic layer 130 may be made of one kind of resin selected from the group consisting of silicone, polyvinyl chloride, polyethylene, ethylene vinyl acetate copolymer, polystyrene, and polyurethane It is preferable to use a foamed material or natural rubber, a silicone, a polyolefin, a polystyrene, a polyester, a polyvinyl chloride, a polyamide or a urethane. And one selected from the group consisting of one selected from the group consisting of rubber materials. 3. The method of claim 2,
Wherein the elastic layer (130) is a sheet type, a mesh type, or an arch type. 3. The method of claim 2,
Wherein the thickness of the elastic layer (130) is 0.1-10 mm. The method according to claim 1,
Wherein the decorative material layer (200) is a sheet, a tile, a floor or a plank. The method according to claim 1,
The triboelectric generator 100 includes a transfer layer 120 sequentially stacked from below; An elastic layer 130; An active layer 140; An upper electrode layer 150; Wherein the self-generating flooring is a self-generating flooring. The method according to claim 1,
The triboelectric generator 100 includes a lower electrode layer 110 sequentially stacked from below; An elastic layer 130; An active layer 140; An upper electrode layer 150; Wherein the self-generating flooring is a self-generating flooring. 12. The method of claim 11,
Wherein the transfer layer (120) is nylon plated with metal on the lower surface. 13. The method of claim 12,
Wherein the active layer 140 is a Teflon-based one selected from the group consisting of polytetrafluoroethylene and perfluoroalkoxy alkane. (a) manufacturing the triboelectric generator (100) of any one of claims 1 to 14;
(b) laminating a decorative material layer (200) on the triboelectric generator (100); (1). &Lt; / RTI &gt; 16. The method of claim 15,
The step (a) of manufacturing the triboelectric generator (100)
(a1) preparing a lower electrode layer 110 and an upper electrode layer 150;
(a2) depositing a transmission layer 120 on the lower electrode layer 110;
(a3) stacking an elastic layer 130 on the transfer layer 120;
(a4) stacking the active layer 140 on the elastic layer 130;
(a5) laminating the transfer layer 120, the elastic layer 130, and the active layer 140 in a laminated state;
(a6) stacking an upper electrode layer 150 on the active layer 140; (A2) to (a4), wherein the step of laminating each layer is a step of coating an adhesive between the layers, or laminating each layer by using an adhesive tape or an adhesive film on one or both sides thereof. (1).

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