WO2020040387A1 - Method for manufacturing korean paper planar heating mat having replaceable blocks, and korean paper planar heating mat - Google Patents

Abstract

The present invention pertains to: a method for manufacturing a Korean paper planar heating mat having replaceable blocks; and a Korean paper planar heating mat. More specifically, the present invention pertains to: a method for manufacturing a Korean paper planar heating mat; and a Korean paper planar heating mat, wherein elasticity and foldability that cannot be achieved using conventional porous carbon and metal ion materials are achieved, thus making it possible to prevent hazards, such as malfunction or fire caused by short circuiting of electrode wires, in advance. To this end, a method for manufacturing a Korean paper planar heating mat according to the present invention comprises: a step for preparing a carbon nanofiber sheet by spinning nanofibers using an electro-spinning technique; a step for preparing a planar heating element by laminating and then bonding the carbon nanofiber sheet and Korean paper; and a step for installing a power supply unit for applying a current to the planar heating element.

Description

Manufacturing method of block replaceable Korean paper sheet heating sheet and Korean paper sheet heating sheet

The present invention relates to a method for manufacturing a block replaceable sheet heat generating sheet and a sheet of paper sheet heat generating sheet. More specifically, the method and method of manufacturing a Hanji surface heating sheet for securing the elasticity and foldability that cannot be solved by conventional porous carbon and metal ion materials to prevent risks such as malfunction or fire due to short circuit of electrode wire. It relates to a planar heating sheet.

The process of manufacturing fiber (pulp) and forming the final product from the paper mulberry, which is the raw material of Hanji, is a scientific product made by Korea's original method. It has been using eco-friendly materials by cultivation and cultivation without any damage, and our traditional Korean paper has various functionalities such as preservation and warmth, antibacterial, far-infrared radiation, and deodorizing property for more than 1,000 years. In particular, Hanji Jangpan manufactured using such Hanji has exploded in demand due to the boom in the construction of Hanok and Hanok type apartments due to consumers' interest in health such as atopic dermatitis.

An attempt has been made to apply a planar heating element to such a hanji board, and a conventional planar heating element is inserted into a resistive heating element inside a planar insulating radiator to be heated using far-infrared radiation caused by conduction heat of the heating element, or a current flows along one electrode line. Although the heating method is used, this method can cause problems such as poor heating performance or poor operation when the electrode line carrying current is broken, and also has a risk of fire due to short circuit of the electrode line. There is a limit to the situation.

In addition, the planar heating element is a situation that there is a lot of limitations to apply to the hanji board because of the lack of elasticity or folding.

Therefore, there is a need for improvement.

The technical problem to be solved in the present invention is to provide a method for producing a sheet of heat-resistant sheet of paper and a sheet of sheet-like heat generating sheet capable of securing elasticity and foldability that cannot be solved by conventional porous carbon and metal ion materials. It is to provide a method of manufacturing a Korean paper sheet heating sheet and a paper sheet sheet heating sheet that can prevent the risk of malfunction or fire due to short circuit of the electrode line in advance.

According to an aspect of the present invention, there is provided a method of manufacturing a planar heat generating plate according to the present invention, comprising: preparing a carbon nanofiber sheet by spinning nanofibers by an electrospinning method, and laminating the carbon nanofiber sheet and hanji And then combining to prepare a planar heating element and installing a power supply unit for applying a current to the planar heating element.

At this time, the preparing of the carbon nanofiber sheet may be a step of electrospinning the polymer solution of the pitch-based or polyacrylonitrile (PAN) -based polymer solution and the PAN fibers and the pitch-based fibers dissolved.

Alternatively, the preparing of the carbon nanofiber sheet may be a step of preparing the carbon nanofiber sheet using a carbon fiber nonwoven fabric or carbon fiber of a pitch system or a PAN system.

In addition, the preparing of the carbon nanofiber sheet may further include a post-treatment step for improving conductivity of the carbon fiber nonwoven fabric or carbon fiber of the pitch or PAN system.

At this time, the post-treatment step may be a step of nanomaterial synthesis and electrolytic / electroless plating treatment to improve the conductivity.

In addition, the preparing of the carbon nanofiber sheet may further include stabilizing and carbonizing the nanofibers after spinning the nanofibers by an electrospinning method.

In this case, the preparing of the planar heating element is a step of bonding the carbon nanofiber sheet and the hanji by pressing under a predetermined temperature and pressure, and before the step of pressing and bonding the carbon nanofiber sheet and the hanji, the carbon nano And applying a binder between the fiber sheet and the hanji.

At this time, the step of applying the binder, traditional paste, synthetic paste, polyvinyl acetate (PVA), polyethylene oxide (PEO), polyvinylidene fluoride (PVDF), polydimethylsiloxane (PDMS), polymethyl methacryl And applying a binder of at least one of latex (PMMA) and cyclohexane.

In addition, the Korean paper plane of the invention according to the invention includes a planar heating element that the carbon nanofiber sheet and Hanji is laminated and coupled, a support for supporting the plurality of the planar heating element is arranged and a power supply for applying a current to the planar heating element. .

The planar heating element may further include a frame surrounding the circumference of the carbon nanofiber sheet, and the hanji may be disposed on an upper surface of the frame.

In this case, the support part may be disposed on an outer circumferential surface of the frame such that the plurality of planar heating elements continuously arranged are fixed to each other.

The support part may include a first coupling member provided in one of the frames, a first coupling member having a fastening hole, and a second coupling member provided in the other neighboring frame and having a fastening protrusion inserted into the fastening hole. Can be.

Alternatively, a noise preventing member may be provided between the hanji and the carbon nanofiber sheet to prevent noise generated by friction between the hanji and the carbon nanofiber sheet.

Alternatively, a load supporting member may be provided between the hanji and the carbon nanofiber sheet to support a load applied to the hanji.

The planar heating element may include a plurality of carbon nanofiber sheets stacked in a vertical direction, and the power supply may include a plurality of electrode members supplying current to each of the carbon nanofiber sheets.

In this case, the power supply unit may further include a connection wire connecting the plurality of electrode members.

In addition, the lower surface of the frame may be provided with a heat insulating member.

The manufacturing method of the Korean paper sheet heat generating sheet and the Korean paper sheet heating sheet according to the present invention having the above-described structure can secure elasticity and foldability because the carbon nanofiber sheet and the sheet of paper is laminated by laminating to form a planar heating element, In addition, the use of the conductivity of the fiber sheet itself does not require the configuration of the electrode line, there is no risk of fire and performance reduction due to the short circuit of the electrode, it is possible to continue to use by replacing only the corresponding parts during maintenance and repair.

In addition, the use of traditional Korean paper can minimize the exposure and environmental pollution to electromagnetic waves and radon, as well as replace existing boilers through the heating plate of Korean paper, which can reduce the import of some crude oil and reduce greenhouse gas emissions. have.

1 is a schematic diagram of a Korean paper sheet heat generating plate according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of the portion I-I of FIG. 1.

3 is a view showing the results of analyzing the surface fiber image and the diameter of the carbon nanofiber sheet according to the present invention through a scanning electron microscope (SEM).

4 is a diagram illustrating a process of manufacturing a planar heating element according to the present invention.

5 is a view showing the results of evaluating the heat generation characteristics of the planar heating element according to the present invention.

6 is a view showing a result of performing the heat-generating characteristics evaluation of the planar heating element according to the present invention for 5 hours.

Figure 7 is a view showing a sheet of paper heat generation sheet according to the present invention according to the embodiment.

8 is a flow chart showing a method for manufacturing a sheet of paper sheet heat generation according to the present invention.

9 and 10 is a view showing a sheet of paper sheet heat generation according to another embodiment of the present invention.

11 is a view showing a first coupling member according to the present invention.

12 is a view showing a second coupling member according to the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like elements throughout the specification.

In this specification, terms such as "comprise" or "have" are intended to indicate that there is a feature, number, step, action, component, part, or combination thereof described in the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, parts, or combinations thereof. In addition, when a part such as a layer, film, region, plate, etc. is said to be "on" another part, this includes not only the case where another part is "directly" but also another part in the middle. Conversely, when a part such as a layer, film, region, plate, etc. is "below" another part, this includes not only the other part "below" but also another part in the middle.

1 is a schematic view of a sheet of heat sheet on a sheet of paper according to an embodiment of the present invention, Figure 2 is a cross-sectional view of a portion II of Figure 1, Figure 3 is a scanning electron microscope (SEM) of a carbon nanofiber sheet according to the present invention Figure 4 shows the results of analyzing the surface fiber phase and diameter through, Figure 4 is a view showing a process for producing a planar heating element according to the present invention, Figure 5 is a result of evaluating the heat generating characteristics of the planar heating element according to the present invention 6 is a view showing the results of the evaluation of the heating characteristics of the planar heating element according to the present invention for 5 hours, Figure 7 is a view showing the Korean paper sheet heat generating plate according to the embodiment 8 is a flowchart illustrating a method for manufacturing a Korean paper sheet heating sheet according to the present invention, and FIGS. 9 and 10 are views showing a Korean paper sheet heating sheet according to another embodiment of the present invention, and FIG. Bonn A diagram showing a first coupling member according to the command, Figure 12 shows a second coupling member according to the present invention.

1 and 2 are shown in the paper sheet heat generating sheet according to the present invention, the method of manufacturing such sheet is shown in Figure 8, by spinning the nanofibers by the electrospinning method carbon nanofiber sheet (10) Preparing a step (S100), and stacking the carbon nanofiber sheet 10 and the Hanji 20, and then combined to prepare a planar heating element 30 (S200) and applying a current to the planar heating element 30 It includes a step (S330) to install the power supply unit 40.

Electrospinning (Electrospinning) is a process for producing fibers through a jet (jet) of the electrically charged polymer solution and the melt, to produce a carbon nanofiber sheet 10 by spinning the nanofibers in this electrospinning method.

The carbon nanofiber sheet 10 and the Hanji 20 are manufactured in this way to produce a planar heating element 30, wherein the Hanji 20 is a high-density / high strength basis weight 200g / ㎡ or less traditional hanji (20) Is preferably used.

The planar heating element 30 manufactured as described above can cover a wide temperature range from low-power, thin-film low temperature zone (Watt density less than 0.5W / cm 2 or less) to high temperature, which is difficult to apply as a conventional metal heating element. The precise control of the temperature has the advantage of obtaining a high heating efficiency, in particular, the carbon nanofibers provided in the carbon nanofiber sheet 10 is about 100 times smaller than the ordinary carbon fiber, CO ₂ generated by combustion There is no discharge of SOx, NOx, etc., and it is an excellent material that can reduce manufacturing cost and material loss.

In addition, high-efficiency heat dissipation is possible without the occurrence of high inrush current, and the carbon nanofiber sheet 10 has a thermal expansion characteristic without a separate control system by applying a PTC (positive temperature coefficient) effect by controlling the microstructure. It also has the advantage that the effect of turning on and off the current can be achieved.

In addition, the planar heating element 30, which combines the carbon nanofiber sheet 10 and the Hanji 20, is a planar heating element 30 using a membrane in which the carbon nanostructure is bonded, and has a significantly smaller diameter. Faster reaction heat and temperature increase rate, excellent electrical energy efficiency due to improved conductivity due to low resistance, and can use radiation heat generated by electric current to improve problems such as pollution, electromagnetic waves, carbon dioxide, and radon. There is an advantage that can be secured to the human body.

As shown in FIG. 1, it is preferable to provide a power supply unit 40 so as to apply a current to the planar heating element 30.

At this time, the step of preparing the carbon nanofiber sheet 10 described above (S100), the electrospinning of the polymer solution of the pitch-based or polyacrylonitrile (PAN) -based polymer solution or PAN fibers and pitch-based fibers dissolved It may be a step.

As such a polymer solution, a polymer solution in which Oxy-PAN fibers are dissolved may also be used.

At this time, the polyacrylonitrile (PAN) -based polymer solution, the distance between the tip and the collector spinning the polymer solution 15 cm, voltage 15 kV, temperature 25 ± 2 ℃, humidity 50 ± 2%, feed rate 0.1ml / min It is preferable to electrospin under the conditions of.

However, these electrospinning conditions can be changed according to the situation.

Alternatively, the preparing of the carbon nanofiber sheet 10 (S100) may be a step of preparing the carbon nanofiber sheet 10 using a carbon fiber nonwoven fabric or carbon fiber of a pitch system or a PAN system.

In other words, a low-cost carbon fiber nonwoven fabric or discarded carbon fibers is used as the carbon nanofiber sheet 10.

At this time, the step of preparing the carbon nanofiber sheet 10 described above (S100), it is preferable to further include a post-treatment step for improving the conductivity of the carbon fiber nonwoven fabric or carbon fiber of the pitch-based or PAN-based.

This post-treatment step may be a step of synthesizing or electrolytic / electroless plating a nanomaterial for the conductivity enhancement. That is, a low-cost carbon fiber nonwoven or discarded carbon fiber is immersed in a conductive nanomaterial dissolving solution, or a low-cost carbon fiber nonwoven or discarded carbon fiber is impregnated with a nanomaterial having such conductivity. It is configured as possible. Alternatively, conductivity can be improved by polymerizing or cross-linking a nanomaterial having such conductivity.

In addition, the step (S100) of preparing the carbon nanofiber sheet 10 may further include stabilizing and carbonizing the nanofibers after spinning the nanofibers by an electrospinning method. The carbonization step is stabilized at 240 ° C. for 30 minutes at a heating rate of 5 ° C./min and then carbonized at 850 ° C. for 4 hours at a heating rate of 5 ° C./min.

As shown in Figure 3, it can be seen that the diameter gradually decreases according to the stabilization and carbonization process, it is preferable to perform a sufficient stabilization and carbonization process so that the diameter of the carbonized nanofibers is 100 ~ 300 nm. 3, it can be seen that the average diameter of the carbonized nanofibers is about 230 nm.

At this time, the step (S200) of preparing the planar heating element 30 may be a step (S200) of bonding the carbon nanofiber sheet 10 and the Hanji 20 by laminating under a predetermined temperature and pressure.

That is, after preparing the carbon nanofiber sheet 10 and the Hanji 20, respectively, it is bonded by a compression method through laminating (laminating).

At this time, before the step of pressing and bonding the carbon nanofiber sheet 10 and the Hanji 20, the carbon nanofiber sheet 10 and the Hanji for uniform lamination of the carbon nanofiber sheet 10 and the Hanji 20 And applying the binder (a) between the (20).

As shown in FIG. 4, the carbon nanofiber sheet 10 is cut according to a standard (a to d steps), and then the carbon nanofiber sheet 10 and the hanji 20 are laminated using a binder (a). Stacking (e to g step) to produce a planar heating element 30 (step h), in which the process of evenly applying the binder (a) over the entire area and drying after laminating is the most important, In the manufacture of the heating element 30, care must be taken not to cause a short circuit between the nanofiber membranes while maintaining the electrode portion of the nanofibers.

The step of applying the binder (a), traditional paste, synthetic paste, polyvinyl acetate (PVA), polyethylene oxide (PEO), polyvinylidene fluoride (PVDF), polydimethylsiloxane (PDMS), polymethyl meta It may be a step of applying the binder (a) of at least one of acrylate (PMMA), cyclohexane. In addition, when the binder (a) is applied, a coating method such as spraying a liquid binder (a) or applying with a brush may be used. In this case, it is important to apply the coating thickness to be constant.

In addition, the step of bonding and bonding the above-described carbon nanofiber sheet 10 and the Hanji 20, the carbon nanofiber sheet 10 and the time between 1 minute to 30 minutes in the temperature range between 50 ℃ ~ 100 ℃ The paper 20 may be pressed.

Thereafter, the step of installing the power supply unit 40 for applying a current to the planar heating element 30 (S330).

As such, when the temperature change is checked using a thermal imaging camera to evaluate the heat generation characteristics of the planar heating element 30 laminated and bonded through lamination of the carbon nanofiber sheet 10 and the Hanji 20 as shown in FIG. 5. same.

The planar heating element 30 having a sheet resistance of 44.2 Ω was connected to the electrode and the applied voltage was increased to 1, 3.75, 6, 10, and 15 V, respectively. High exothermic properties were shown. That is, it can be confirmed that the temperature of the entire area of the planar heating element 30 is uniformly distributed in a very short time.

In addition, as a result of connecting the planar heating element 30 having a sheet resistance of 88.2 Ω to the electrode and evaluating the heating characteristics for 5 hours, as shown in FIG. 6, the temperature of 72 ° C. to 73 ° C. was maintained for 5 hours. It can be seen that this can last without shorting or temperature reduction.

<Table 1> Result of Electromagnetic Shielding Performance (SE)

Table 1 summarizes the results of measuring electromagnetic wave shielding performance (SE) by plating a metal on the carbon nanofiber sheet 10 by electroless plating, and comparing the results of 3 seconds, 5 seconds, and 10 seconds by electroless plating. It can be confirmed that excellent electromagnetic shielding is possible.

In addition, the sheet of the invention according to the present invention is a planar heating element 30, the carbon nanofiber sheet 10 and the Korean paper 20 is coupled, the support portion for supporting the plurality of the planar heating element 30 is arranged and such a planar It includes a power supply unit 40 for applying a current to the heating element (30). That is, as shown in Figure 7, the planar heating element 30 is formed as a block of a predetermined size, and the block-shaped planar heating element 30 can be arranged to be used as a Hanji planar heating plate, if configured as described above There is a part that can be used by replacing only the surface heating element (30).

As illustrated in FIG. 2, the plywood support 60 may be provided to effectively support the planar heating element 30. The plywood support 60 is provided to reinforce the mechanical strength of the planar heating element 30, it is preferable that the electrical insulation function is also provided to ensure safety in the use process. In addition, the plywood support 60 is preferably provided with heat resistance so that even in the high temperature use process of the planar heating element 30 can be effectively supported.

In this case, as shown in FIG. 7, the above-mentioned support part may be a pressing frame 50 that partitions the plurality of planar heating elements 30.

In addition, the pressing frame 50 may be provided with a support protrusion 51 for pressing and supporting the upper surface of the adjacent planar heating element 30, the support protrusion 51 is formed in this way of the planar heating element 30 Stable support is possible.

Alternatively, the press member 50 may be provided with an energizing member 52 to allow the movement of current between adjacent planar heating elements 30. That is, the electric current applied through the power supply unit 40 is transmitted to the planar heating element 30 adjacently arranged through the conducting member 52.

In addition, the pressing frame 50 may include a plurality of pressing members 53 that can be separated from each other, as shown in FIG. 7. As described above, the planar heating element 30 according to the present invention is formed in a block form and is easy to install, and in the case of the planar heating element 30 which does not generate heat due to a failure, etc., only the planar heating element 30 of the corresponding portion After replacement, a new planar heating element 30 is installed. As described above, when the press frame 50 is formed of a plurality of press members 53 that can be separated from each other, the planar heating element 30 of a specific portion is separated. It becomes easy.

At this time, the lower portion of the pressing frame 50 may be provided with a fixing member 54 for fixing the position of the pressing frame 30 to support the plurality of planar heating element 30.

The fixing member 54 can be used by applying a waterproof silane agent to the lower part of the press mold 50, and not only prevents leakage, but also needs to be repaired by a high temperature silane agent when repair is required. After removing the press frame 50 by controlling the adhesive force can be easily replaced.

As shown in FIG. 9 and FIG. 10, the planar heating element 30 further includes a frame 31 surrounding the circumference of the carbon nanofiber sheet 10, and the Hanji 20 is formed on the upper surface of the frame 31. Can be arranged.

In this case, the frame 31 may be formed as a frame 31 of a block shape, and when the carbon nanofiber sheet 10 and the Hanji 20 are modularized using the frame 31 of the block type, the frame 31 may be installed. In the case of the planar heating element 30 that does not generate heat due to a failure, etc., it is easy to install a new planar heating element 30 after replacing only the planar heating element 30 of the corresponding portion.

The block-shaped frame 31 is installed in such a manner that the modular planar heating elements 30 are continuously arranged. At this time, the outer circumferential surface of the frame 31 is fixed such that the plurality of planar heating elements 30 arranged in series are fixed to each other. The above support may be disposed.

The support part includes a first coupling member 70 provided in one of the frames 31 and a second coupling member 80 provided in the other frame 31, and the first coupling member 70 and the first coupling member 70. Each planar heating element 30 is installed in such a manner that the second coupling member 80 is coupled to each other.

A fastening hole 71 into which the second coupling member 80 is inserted is formed in the first coupling member 70, and a fastening protrusion 81 inserted into the aforementioned fastening hole 71 in the second coupling member 80. ) Is formed.

In addition, an uneven structure may be formed in the first coupling member 70 such that the second coupling member 80 inserted into the fastening hole 71 may not be easily separated, and the second coupling member 80 may correspond to the uneven structure. Concave-convex structure can be formed.

As such, when the first coupling member 70 and the second coupling member 80 are provided on the outer circumferential surface of the frame 31, the modular planar heating element 30 can be easily assembled.

In addition, not only the carbon nanofiber sheet 10 but also various layers may be provided in the frame 31.

When the user is activated after the planar heating element 30 is installed, the user's load is applied to the planar heating element 30. In particular, the Hanji 20 is partially elastically deformed due to such a load, and the Hanji 20 is thus In the process of elastic deformation, the Hanji 20 and the carbon nanofiber sheet 10 may be relative to the movement, such that the noise due to friction may occur in the relative movement. Therefore, even in this case, it is preferable that the noise prevention member 90 is provided to prevent the noise generated by friction between the Hanji 20 and the carbon nanofiber sheet 10.

As the noise preventing member 90, a nonwoven fabric may be used, and the nonwoven fabric may be manufactured together so as to be integrally formed on the bottom surface of the Hanji 20 during manufacture of the Hanji 20.

In addition, the upper surface of the Hanji 20 may be provided with an outer finishing layer 21, the outer finishing layer 21 can be manufactured using a Hanji composite.

In addition, as described above, when the user is activated after the planar heating element 30 is installed, the user's load is applied to the planar heating element 30, and the carbon nanofiber sheet 10 is damaged due to the load of the user. A load supporting member 100 for supporting such a load may be provided between the Hanji 20 and the carbon nanofiber sheet 10 so as to prevent it.

The load supporting member 100 may use a stainless panel or the like, and any configuration may be used as long as the material has a rigidity capable of supporting a load of the user.

In addition, since the through hole 101 is formed in the load supporting member 100, heat generated in the carbon nanofiber sheet 10 may be smoothly transferred through the through hole 101.

The planar heating element 30 may have a plurality of carbon nanofiber sheet 10 stacked in a vertical direction. In this case, each carbon nanofiber sheet 10 may be provided with an electrode member 41 for supplying current. Can be.

In addition, one carbon nanofiber sheet 10 may be provided with a plurality of electrode members 41, and the current supplied through one electrode member 41 passes through the carbon nanofiber sheet 10 and then the other. As the current flows through the one electrode member 41, the carbon nanofiber sheet 10 generates heat.

In this case, the power supply 40 may further include a connection wire 42 connecting the plurality of electrode members 41 to each other. That is, the current supplied through the plug 43 can be supplied to any one electrode member 41, and the current can also be supplied to the other electrode member 41 through the connection wire 42. There is no need to provide a plurality of plugs (43) for.

In addition, the planar heating elements 30 adjacent to each other may be configured to allow current to move through the first coupling member 70 and the second coupling member 80 described above. That is, the current moving through the connecting wire 42 is configured to be moved to the adjacent planar heating element 30 through the first coupling member 70 and the second coupling member 80.

In addition, the lower surface of the frame 31 may be provided with a heat insulating member, and as the heat insulating member 110 is provided as described above, the heat generated from the carbon nanofiber sheet 10 is transferred only to the Korean paper 20 and the frame 31. ) Can be prevented from being lost to the outside.

Hanji 20 may be provided at the bottom of the frame 31, thereby reinforcing the mechanical strength, electrical insulation to ensure safety in the use process, heat resistance that can be effectively supported even at high temperature use process You can also secure.

Although an embodiment of the present invention has been described, the spirit of the present invention is not limited to the embodiments presented herein, and those skilled in the art who understand the spirit of the present invention may add or change elements within the same spirit. Other embodiments may be easily proposed by adding to, deleting, adding to, etc., but this will also be within the scope of the present invention.

Claims (12)

1. Preparing a carbon nanofiber sheet by spinning nanofibers by electrospinning;

   Preparing a planar heating element by laminating and bonding the carbon nanofiber sheet and Hanji; And

   Providing a power supply unit applying a current to the planar heating element;

   Method for producing a sheet of paper sheet heat generation comprising a.
2. The method of claim 1,

   Preparing the carbon nanofiber sheet,

   A method for producing a sheet of heat resistant sheet of Korean paper, characterized in that the step of electrospinning the polymer solution of the pitch-based or polyacrylonitrile (PAN) -based and the polymer solution in which the PAN fibers and pitch-based fibers are dissolved.
3. The method of claim 1,

   Preparing the carbon nanofiber sheet,

   A method of manufacturing a sheet of paper sheet heat generating sheet, characterized in that the step of preparing the carbon nanofiber sheet using a carbon fiber nonwoven fabric or carbon fiber of the pitch system or PAN system.
4. The method of claim 3,

   Preparing the carbon nanofiber sheet,

   Method for producing a sheet of heat-resistant Korean paper sheet further comprises a post-treatment step for improving the conductivity of the carbon fiber nonwoven fabric or carbon fiber of the pitch system or PAN system.
5. The method of claim 4, wherein

   The post-treatment step is a method for producing a sheet of paper heat-generating hanjang, characterized in that the step of nanomaterial synthesis and electrolytic / electroless plating to improve the conductivity.
6. The method of claim 1,

   Preparing the carbon nanofiber sheet,

   After spinning the nanofibers by the electrospinning method, stabilizing the carbon nanofibers and the step of carbonizing the manufacturing method of the planar heating sheet.
7. The method of claim 1,

   Preparing the planar heating element,

   Combining the carbon nanofiber sheet and Hanji by pressing under a predetermined temperature and pressure,

   Before the step of bonding the carbon nanofiber sheet and Hanji by bonding,

   Method for producing a sheet of paper heat-generating sheet, characterized in that it comprises the step of applying a binder between the carbon nanofiber sheet and Hanji.
8. The method of claim 7, wherein

   Applying the binder,

   At least any of traditional pools, synthetic pools, polyvinyl acetate (PVA), polyethylene oxide (PEO), polyvinylidene fluoride (PVDF), polydimethylsiloxane (PDMS), polymethyl methacrylate (PMMA), and cyclohexane Method for producing a sheet of paper sheet heating sheet characterized in that the step of applying a binder.
9. A planar heating element in which carbon nanofiber sheet and Hanji are laminated and bonded;

   A support part supporting a plurality of the surface heating elements to be arranged; And

   A power supply unit applying current to the planar heating element;

   Korean paper surface heating sheet containing.
10. The method of claim 9,

    The planar heating element further includes a frame surrounding the circumference of the carbon nanofiber sheet,

    The upper surface of the frame is the hanji on the surface of the sheet of paper is arranged.
11. The method of claim 10,

    Hanji plane heating sheet is disposed on the outer circumferential surface of the frame so that the plurality of planar heating elements arranged in series.
12. The method of claim 11,

    The support portion,

    A first coupling member provided in one of the frames and having a fastening hole; And

    A second coupling member provided in the other neighboring frame and having a fastening protrusion inserted into the fastening hole;

    Korean paper surface heating sheet containing.

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