KR101880357B1 - Triboelectric energy generator based on textile using shape memory polymer - Google Patents

Abstract

The present invention relates to a textile-based triboelectric energy generating device using a shape memory polymer.
The textile-based triboelectric energy generating device using the shape memory polymer according to the first embodiment of the present invention includes: a first textile; And at least one of the first textile and the second textile is woven into a conductive yarn coated with a shape memory polymer on the outside, and the first textile and the second textile are woven into a conductive yarn A conductive yarn-woven fabric having a shape memory polymer coated on the outside of the textiles, which is capable of generating frictional electricity by friction between the first textile and the second textile, By applying heat above the glass temperature of the shape memory polymer, the textile can self-recover.

Description

TECHNICAL FIELD [0001] The present invention relates to a triboelectric energy generating device using a shape memory polymer,

The present invention relates to a textile-based triboelectric energy generating device using a shape memory polymer.

Textile-based triboelectric energy power plant has a big problem in that the output of the energy generation device is lowered because it is not easy to separate after contact because the textile itself increases during friction movement.

1 is a conceptual diagram for explaining a problem of a textile-based triboelectric energy generating device according to the prior art.

As shown in FIG. 1, a textile-based triboelectric energy generating device generates triboelectricity by contacting friction materials made of textile with friction materials by friction. The triboelectricity can be continuously generated in the process of repeating whether the textiles are in contact with each other or not.

In order to maintain this process, the contact / separation of the textile should be easy, but in reality, the textile is increased by the continuous use, and because of the increase of the textile, separation after contact is difficult. Is lowered.

The present invention aims at solving the phenomenon that the output of the tactile-based triboelectric energy generating device is lowered by the increase of the textile itself during the friction exercise by using the shape memory polymer.

The textile-based triboelectric energy generating device using the shape memory polymer according to the first embodiment of the present invention includes: a first textile; And at least one of the first textile and the second textile is woven into a conductive yarn coated with a shape memory polymer on the outside, and the first textile and the second textile are woven into a conductive yarn A conductive yarn-woven fabric having a shape memory polymer coated on the outside of the textiles, which is capable of generating frictional electricity by friction between the first textile and the second textile, By applying heat above the glass temperature of the shape memory polymer, the textile can self-recover.

The first textile and the second textile are disposed one above the other and spaced apart from each other.

By forming a fine pattern on the surface of the shape memory polymers, the surface area of the textile is increased to improve the output by friction.

A textile-based triboelectric energy generating device using a shape memory polymer according to a second embodiment of the present invention includes: a first textile; And a second textile, wherein at least one of the first textile and the second textile has a shape in which a metal is disposed in a core shape and a shape memory polymer is coated on the outside of the thread, Wherein the first textile and the second textile are spaced apart from each other so as to allow friction by contact with each other, and friction electricity can be generated by friction between the first textile and the second textile, The textile can be self-recovered by applying heat above the glass temperature of the shape memory polymer to the conductive thread-woven fabric having the shape memory polymer coated on the outside of the textiles.

The first textile and the second textile are disposed one above the other and spaced apart from each other.

By forming a fine pattern on the surface of the shape memory polymers, the surface area of the textiles is increased to improve the output by friction.

A textile-based triboelectric energy generating device using a shape memory polymer according to a third embodiment of the present invention includes: a first textile; And a second textile, wherein one of the first textile and the second textile is woven into a conductive yarn coated with a first shape memory polymer on the outside, and the other is formed of a metal in the form of a core Wherein the first shape memory polymer and the second shape memory polymer are woven using a yarn in which a second shape memory polymer is coated on the outside of a yarn in which a polymer is arranged in a shell form on the outside, Wherein the first textile and the second textile are spaced apart from each other to allow friction by contact with each other, and friction electricity can be generated by friction between the first textile and the second textile, and the shape memory polymer The above-mentioned textiles can be self-recovered.

The first textile and the second textile are disposed one above the other and spaced apart from each other.

By forming a fine pattern on the surface of the shape memory polymers, the surface area of the textiles is increased to improve the output by friction.

A textile-based triboelectric energy generating device using a shape memory polymer according to a fourth embodiment of the present invention comprises: a first textile woven in a yarn; Wherein at least one of the first textile and the second textile is coated with a shape memory polymer, and the first textile and the second textile are frictionally contacted with each other Wherein the first and second textiles are arranged so as to be spaced apart from each other by a predetermined distance and are capable of generating frictional electricity by friction between the first textile and the second textile, The textile can be self-recovered.

A thread or a conductive thread is used in which the metal is arranged in the form of a core and the polymer is arranged in a shell form on the outside.

The first textile and the second textile are disposed one above the other and spaced apart from each other.

By forming a fine pattern on the surface of the shape memory polymers, the surface area of the textiles is increased to improve the output by friction.

A textile-based triboelectric energy generating device using a shape memory polymer according to an embodiment of the present invention is applicable to a garment or a wearable device.

According to the present invention, by applying heat to a textile to which a shape memory polymer is applied, the stretched textile is self-restored to its original state. Therefore, it is possible to solve the problem that the output of the textile-based triboelectric energy plant is reduced due to the sagging.

1 is a conceptual diagram for explaining a problem of a textile-based triboelectric energy generating device according to the prior art.
2 is a conceptual diagram for explaining a textile-based triboelectric energy generating device using a shape memory polymer.
FIG. 3 is a view showing a conductive seal coated with a shape memory polymer on a textile-based triboelectric energy generating device using a shape memory polymer according to a first embodiment of the present invention.
FIG. 4 is a view showing a state in which a shape memory polymer is coated on an outer surface of a textile-based triboelectric energy generating device using a shape memory polymer according to a second embodiment of the present invention.
FIG. 5 illustrates an example of a variety of methods of knitting yarns making up a textile according to an embodiment of the present invention.
FIGS. 6A and 6B illustrate the formation of fine patterns on the surface of shape memory polymers according to an embodiment of the present invention.
Figure 7 shows a schematic and sample photograph of a method of coating a shape memory polymer solution on a textile using spin coating according to one embodiment of the present invention.
FIG. 8 illustrates a state in which heat is applied to a textile using a shape memory polymer manufactured according to an embodiment of the present invention.
FIG. 9 shows a state in which heat is applied to a textile-based frictional electric energy generating device using a shape memory polymer manufactured according to an embodiment of the present invention.
FIG. 10 shows output values of a textile-based triboelectric energy generating device using a shape memory polymer fabricated according to an embodiment of the present invention.
Various embodiments are now described with reference to the drawings, wherein like reference numerals are used throughout the drawings to refer to like elements. For purposes of explanation, various descriptions are set forth herein to provide an understanding of the present invention. It is evident, however, that such embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to facilitate describing the embodiments.

The following description provides a simplified description of one or more embodiments in order to provide a basic understanding of embodiments of the invention. This section is not a comprehensive overview of all possible embodiments and is not intended to identify key elements or to cover the scope of all embodiments of all elements. Its sole purpose is to present the concept of one or more embodiments in a simplified form as a prelude to the more detailed description that is presented later.

The present invention is intended to solve a major problem that the output of the energy generating device is deteriorated because the textile itself is increased during the self-friction movement of the textile-based triboelectric energy power plant mentioned in the prior art, The shape memory polymer was applied to the textile to recover its original state when heat was applied.

Shape memory polymer materials capable of self-recovery to the original state using heat have glass temperatures in various temperature ranges. Therefore, if the shape memory polymer material is applied to the textile and the heat of the temperature coinciding with or exceeding the glass temperature of the shape memory polymer material is externally applied, the stretched textile itself is restored to its original state, The output can be restored.

If a textile-based triboelectric energy generating device is fabricated using a shape memory polymer with frictional heat and body temperature close to body temperature during physical exercise, Can solve the problem that the textile-based triboelectric energy plant is deformed. This method has a great advantage in that it is not necessary to externally apply the temperature separately.

2 is a conceptual diagram for explaining a textile-based triboelectric energy generating device using a shape memory polymer.

As shown in FIG. 2, in the case of a textile using a shape memory polymer, even if sagging occurs, heat can be applied to restore the original state of the textile. Thus, the output of the triboelectric energy generating element can be prevented from being reduced.

The textile-based triboelectric energy generating device using the shape memory polymer according to the first embodiment of the present invention includes: a first textile; And a second textile.

At least one of the first textile and the second textile is woven with a conductive yarn coated with a shape memory polymer on the outside.

FIG. 3 is a view showing a conductive seal coated with a shape memory polymer on a textile-based triboelectric energy generating device using a shape memory polymer according to a first embodiment of the present invention.

As shown in FIG. 3, a shape memory polymer solution is coated on the outside of the conductive chamber, and a conductive chamber coated with a shape memory polymer is prepared. In this case, the external shape memory polymer is a friction material involved in direct friction, and the conductive thread inside can serve as an electrode.

In the first embodiment of the present invention, the first textile and the second textile contact each other to generate triboelectricity. Therefore, in order to generate triboelectricity, the friction material of the first textile and the friction material of the second textile must be different. If both the first textile and the second textile are woven in a film coated with a shape memory polymer, the shapes of the shape memory polymer material that are in contact with each other must be different from each other. In this case, it is preferable that a large difference in charging characteristics is used on the triboelectric series so that the output of the triboelectricity generated is large.

Textiles are woven in a yarn, and various patterns can be produced according to the knitting method when the yarn is manufactured through various knitting methods, so that the output of the energy generating plant can be improved by increasing the surface area of the textile. Fig. 5 shows an example showing various knitting methods of yarn. Since the surface area of textile depends on the method of knitting the yarn (plain, double, rib, etc.), the output of the energy generating device is improved as the knitting method with a larger surface area is selected.

The first textiles and the second textiles may be arranged one above the other, as shown in FIG. 2, and spacers may be arranged therebetween. It does not matter which of the first textile and the second textile is disposed up. Friction can be generated by movement in the state of being arranged up and down one another, and thereby triboelectric energy can be generated. Since the triboelectric energy generating device using these textiles can be used for clothes and wearable devices, it is possible to generate triboelectric energy continuously due to the movement of the human body.

Further, in order to increase the output of the triboelectric energy, a fine pattern may be formed on the surface of the shape memory polymer. 6 shows a state where fine patterns are formed on the surfaces of the shape memory polymers. By forming fine patterns on the surfaces of the shape memory polymers, the surface area of the textiles can be increased, thereby increasing the triboelectric energy output due to friction.

In the specification of the present invention, a fine pattern can be formed by growing a nano-rod on a surface of a seal as shown in Figs. 6A to 6B to form a fine pattern, or to form a fine pattern through plasma etching.

A textile-based triboelectric energy generating device using a shape memory polymer according to a second embodiment of the present invention includes: a first textile; And a second textile, wherein at least one of the first textile and the second textile has a shape in which a metal is disposed in a core shape and a shape memory polymer is coated on the outside of the thread, The yarn is woven using the yarn.

FIG. 4 is a view showing a state in which a shape memory polymer is coated on an outer surface of a textile-based triboelectric energy generating device using a shape memory polymer according to a second embodiment of the present invention.

As shown in FIG. 4, a shape-memory polymer solution is coated on the outside of a thread made of a conductive thread (core) -memory shell (shell) having a core-shell structure to prepare a yarn coated with a shape memory polymer on the outside. In this case, the external shape memory polymer is a friction material involved in direct friction, and the conductive thread inside can serve as an electrode.

The second embodiment of the present invention is a case where the first textile and the second textile come into contact with each other to generate triboelectricity. Therefore, in order to generate triboelectricity, the friction material of the first textile and the friction material of the second textile must be different. If both the first textile and the second textile are woven in a film coated with a shape memory polymer, the shapes of the shape memory polymer material that are in contact with each other must be different from each other. In this case, it is preferable that a large difference in charging characteristics is used on the triboelectric series so that the output of the triboelectricity generated is large.

Textiles are woven in a yarn, and various patterns can be produced according to the knitting method when the yarn is manufactured through various knitting methods, so that the output of the energy generating plant can be improved by increasing the surface area of the textile. Fig. 5 shows an example showing various knitting methods of yarn. Since the surface area of textile depends on the method of knitting the yarn (plain, double, rib, etc.), the output of the energy generating device is improved as the knitting method with a larger surface area is selected.

The first textiles and the second textiles may be arranged one above the other, as shown in FIG. 2, and spacers may be arranged therebetween. It does not matter which of the first textile and the second textile is disposed up. Friction can be generated by movement in the state of being arranged up and down one another, and thereby triboelectric energy can be generated. Since the triboelectric energy generating device using these textiles can be used for clothes and wearable devices, it is possible to generate triboelectric energy continuously due to the movement of the human body.

Further, in order to increase the output of the triboelectric energy, a fine pattern may be formed on the surface of the shape memory polymer. 6 shows a state where fine patterns are formed on the surfaces of the shape memory polymers. By forming fine patterns on the surfaces of the shape memory polymers, the surface area of the textiles can be increased, thereby increasing the triboelectric energy output due to friction.

A textile-based triboelectric energy generating device using a shape memory polymer according to a third embodiment of the present invention includes: a first textile; And a second textile, wherein one of the first textile and the second textile is woven into a conductive yarn coated with a first shape memory polymer on the outside, and the other is formed of a metal in the form of a core And the second shape memory polymer is coated on the outside of the yarn in which the polymer is arranged in a shell form on the outside thereof.

The third embodiment corresponds to an example of the energy generation by friction between the textile woven in the manner of the first embodiment and the textile woven in the manner of the second embodiment. The contents of preparing textile yarns and weaving them have already been described above, so the repetitive explanation will be omitted.

The third embodiment of the present invention is a case where the first textile and the second textile are brought into contact with each other to generate triboelectricity and therefore the materials of the first shape memory polymer and the second shape memory polymer for generating triboelectricity are different Should be. In this case, it is preferable that a large difference in charging characteristics is used on the triboelectric series so that the output of the triboelectricity generated is large.

Textiles are woven in a yarn, and various patterns can be produced according to the knitting method when the yarn is manufactured through various knitting methods, so that the output of the energy generating plant can be improved by increasing the surface area of the textile. Fig. 5 shows an example showing various knitting methods of yarn. Since the surface area of textile depends on the method of knitting the yarn (plain, double, rib, etc.), the output of the energy generating device is improved as the knitting method with a larger surface area is selected.

The first textiles and the second textiles may be arranged one above the other, as shown in FIG. 2, and spacers may be arranged therebetween. It does not matter which of the first textile and the second textile is disposed up. Friction can be generated by movement in the state of being arranged up and down one another, and thereby triboelectric energy can be generated. Since the triboelectric energy generating device using these textiles can be used for clothes and wearable devices, it is possible to generate triboelectric energy continuously due to the movement of the human body.

Further, in order to increase the output of the triboelectric energy, a fine pattern may be formed on the surface of the shape memory polymer. 6 shows a state where fine patterns are formed on the surfaces of the shape memory polymers. By forming fine patterns on the surfaces of the shape memory polymers, the surface area of the textiles can be increased, thereby increasing the output of the triboelectric energy due to the friction.

In FIGS. 3 and 4, the shape memory polymer is coated on the seal itself. However, as a method of applying the shape memory polymer to the textile, a method of coating the shape memory polymer solution on the textile itself can also be used. By applying a shape memory polymer solution to various textiles such as polymer textiles and conductive textiles using a spin coater or a dip coater, it is possible to fabricate a shape memory polymer which is returned to its original state when heat is applied. Figure 7 shows a schematic and sample photograph of a method of coating a shape memory polymer solution on a textile using spin coating according to one embodiment of the present invention. As shown in Table 1 below, when the shape memory polymer is coated on the conductive textile, the conductive textile coated with the shape memory polymer solution has the advantage of being able to maintain the conductivity because the conductive polymer tends to penetrate into the shape memory polymer solution .

Conductive textile Conductive textile coated with shape memory polymer solution resistance 1.6Ω 3.2Ω

Table 1 shows the results of measuring the resistance of a sample after coating a shape memory polymer solution on a general conductive textile sample and a conductive textile. Resistance was measured for both samples, and as a result, both samples were found to be conductive. That is, the conductive textile maintains conductivity even after coating the shape memory polymer solution, and does not lose the existing electrical properties.

The tile-based triboelectric energy generating device using the shape memory polymer manufactured by coating the shape memory polymer solution to the textile itself corresponds to the fourth embodiment of the present invention. The textile- A triboelectric energy generating element comprises: a first textile woven in a yarn; And a second yarn woven fabric, wherein at least one of the first textile and the second textile is coated with a shape memory polymer. The contents of preparing textile yarns and weaving them have already been described above, so the repetitive explanation will be omitted. In addition, the parts described in the above embodiments and the repeated contents will be omitted.

FIG. 8 illustrates a state in which heat is applied to a textile using a shape memory polymer manufactured according to an embodiment of the present invention. FIG. 8 shows that when a shape is coated with a shape memory polymer, the textiles are returned to their original flat state after heat is applied to the textile using a heater (artificial sagging) .

FIG. 9 shows a state in which heat is applied to a textile-based frictional electric energy generating device using a shape memory polymer manufactured according to an embodiment of the present invention. Also in FIG. 9, it is confirmed that the textile is returned to its original flat state by applying heat to the textile using a heater as in FIG.

FIG. 10 shows output values of a textile-based triboelectric energy generating device using a shape memory polymer fabricated according to an embodiment of the present invention. 10 compares the triboelectric energy output value in the case of nylon textile and the triboelectric energy output value in the case of nylon textile coated with shape memory polymer.

A variety of materials can be used as the relative triboelectrification material that rubs against the textile using the shape memory polymer. In particular, conductive textile, polymer textile or the like can be used as a relative triboelectric material for application to clothing and wearable devices. Textile based triboelectric energy plant using shape memory polymer can be used in various triboelectric energy plant driving methods such as pushing mode, sliding mode, single electrode mode.

The textile-based triboelectric energy generation device using the shape memory polymer according to the present invention overcomes the limitations of the existing textile-based triboelectric energy power plant, so that the textile-based triboelectric energy plant using the shape memory polymer according to the present invention When applied to a smart garment or a wearable device, the output does not decrease due to the increase, and constant power can be supplied continuously. Therefore, a future-oriented information-processing device (UCP), a user interface (UI), a wireless body area network , WBAN).

The description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features presented herein.

Claims (15)

delete delete delete A first textile; And
A second textile,
Wherein at least one of the first textile and the second textile is woven using a yarn having a structure in which a shape memory polymer is coated on an outer side of a core-shell structure of a polymeric thread forming a conductive thread and a shell forming a core,
The first textile and the second textile being spaced apart from each other to allow friction by contact with each other,
The friction between the first textile and the second textile can generate electricity,
The textile is self-recoverable by applying heat above the glass temperature of the shape memory polymer to the yarn-woven textile in which the shape memory polymer is coated on the outside of the textiles,
Wherein the first textile and the second textile are woven to increase the surface area and form a fine pattern on the surface of the shape memory polymers to increase the surface area of the textiles to improve the output by friction,
Textile based triboelectric energy generation device using shape memory polymer.
5. The method of claim 4,
Wherein the first textile and the second textile are disposed one above the other and spaced apart from each other,
Textile based triboelectric energy generation device using shape memory polymer.
delete A first textile; And
A second textile,
Wherein one of the first textile and the second textile is woven into a conductive thread coated with a first shape memory polymer on the outside and the other is a conductive thread made of a core- It was woven using yarns of the shape memory polymer coated on the outside,
The material of the first shape memory polymer and the material of the second shape memory polymer are different,
The first textile and the second textile being spaced apart from each other to allow friction by contact with each other,
The friction between the first textile and the second textile can generate electricity,
The textiles can be self-recovered by applying heat above the glass temperature of the shape memory polymer to the textiles,
Wherein the first textile and the second textile are woven to increase the surface area and form a fine pattern on the surface of the shape memory polymers to increase the surface area of the textiles to improve the output by friction,
Textile based triboelectric energy generation device using shape memory polymer.
8. The method of claim 7,
Wherein the first textile and the second textile are disposed one above the other and spaced apart from each other,
Textile based triboelectric energy generation device using shape memory polymer.
delete delete delete delete delete A textile-based triboelectric energy generating device using the shape memory polymer according to any one of claims 4, 5, 7, and 8.
A wearable device to which a textile-based triboelectric energy generating device using a shape memory polymer according to any one of claims 4, 5, 7, and 8 is applied.

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