KR20180004624A - Carbon nanotubes and conductive polymer composite material produced is mixed utilization and efficient composition - Google Patents

Abstract

The present invention relates to a conductive composition including a carbon nanotube, a conductive polymer complex body, and various substances. More specifically, a carbon nanotube and a conductive polymer complex body, which are physically, chemically, and electrically excellent, are injected and spread into ceramic, silicon, epoxy, and urethane and formed into a conductor, and thus, the composition is able to be applied to a heating element, an electromagnetic wave shielding agent, an electromagnetic wave absorbing agent, a heat radiation plate, a sound absorbing agent, and a cathode agent. Moreover, since the resistance value is controlled in accordance with the injection amount of the conductive polymer complex body and the carbon nanotube, the composition is able to be used as a heating element, an electromagnetic wave shielding agent, an electromagnetic wave absorbing agent, a heat radiation plate, a sound absorbing agent, and a cathode agent in accordance with a purpose.

Description

(Carbon nanotubes and conductive polymer composite materials are produced by mixing and synthesizing carbon nanotubes with conductive polymer complexes.

The present invention relates to a conductive composition containing carbon nanotubes, conductive polymer complexes and various materials, and more particularly, to a conductive composition comprising carbon nanotubes and conductive polymer complexes excellent in physical, chemical and electrical properties, injected and dispersed in ceramic, silicone, An electromagnetic wave shielding agent, an electromagnetic wave absorbent, a heat sink, a soundproofing material, a sound absorbing material, a negative electrode material, etc., by producing a conductor by molding. In addition, by adjusting the resistance value of the carbon nanotubes and the conductive polymer composite, the carbon nanotubes and conductive polymer complexes, which can be used as heating elements, electromagnetic wave shielding agents, electromagnetic wave absorbents, heat sinks, soundproofing agents, sound absorbing agents, To a composition with high utilization and efficiency.

Generally, a resistance (heat) is an object that transfers energy by converting electric energy into heat energy and radiating heat to the outside, and is widely used in various household appliances or industrial fields. Depending on the material, a metal resistor, a nonmetal resistor, Resistors. Recently, many studies have been made on the manufacturing and application of resistors in many countries due to the new awareness of energy saving and environmental problems.

However, since the metal resistor has a small deformation at high temperature, good workability and good oxidation resistance, it generates heat at a high pressure, so that a magnetic field generated when a current flows is harmful and usually uses a high voltage AC power source. However, conventional resistors made by adding barium and titanium other additives to ceramics, one kind of other resistance bodies, have a disadvantage that the magnetic field generated when a current flows is harmful to the human body and the consumed power is high.

On the other hand, carbon resistors among non-metallic resistors are most widely used, and graphite (carbon) resistors are used as resistance heating elements that generate heat by directly energizing them, and various high-temperature heating elements that utilize heat generated by high frequency induction. The graphite heating element has a merit that it conveys heat and electricity well, has a small thermal expansion, is excellent in heat resistance and impact resistance, chemically stable at high temperature, has chemical resistance and good workability, but has a disadvantage that mechanical strength is lower than that of metal have.

Graphite heating elements have various advantages, but they require special equipments and technologies such as high pressure or high temperature in solidification molding process, so they are not economical and have a small solidified size. In order to produce desired shapes, they must be machined using machine tools Therefore, secondary processing costs are required.

Further, the graphite powder has a problem that the fine powder is buried on the surface even after molding.

In order to solve the above problems, carbon nanotubes (CNTs) instead of graphite are being developed. Carbon nanotubes have received wide interest due to their simple structure and excellent mechanical and electrical properties. Many structures and practical applications for carbon nanotubes have been proposed in fields such as electronic devices, heterojunction devices, electron emitters, and other industrial fields, and composites containing carbon nanotubes have been widely used in the fields of electrostatic discharge, devices, capacitors, EMI shielding, It can be applied to a number of applications including electromagnetic wave-free heating elements.

However, since the composite containing carbon nanotubes has difficulty in forming and mechanical strength, and has a problem in water resistance, it is currently used as a method of uniformly spraying or printing a film-like resin (RESIN) There is a limitation that it is mainly used.

Korean Patent No. 10-0749886 Korean Patent No. 10-1055631

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a carbon nanotube-conductive polymer composite material having excellent resistance (heat generation) by mixing it with ceramics, silicone, epoxy, .

The amount of the carbon nanotubes and the conductive polymer composite included in the present invention can control the resistance according to the purpose of use.

 The present invention can also be applied to a heating element, an electromagnetic wave shielding agent, an electromagnetic wave absorbent, a heat sink, a soundproofing material, a sound absorbing material, a negative electrode material, and the like.

The present invention also provides carbon nanotubes and conductive polymer composite compositions that are manufactured by incorporating carbon nanotubes, conductive polymer complexes, ceramics, silicones, epoxies, and urethanes, and thus have excellent productivity at low cost and excellent performance.

In order to solve the above problems,

As a pre-treatment method for making carbon nanotubes into a variety of utilization and high-efficiency resistors, rapid heating at 100 to 120 ° C. and heat treatment are performed to remove moisture contained in the carbon nanotubes.

Preparing a mixture of the carbon nanotubes and the conductive polymer composite by mixing the carbon nanotubes and the conductive polymer complex in 100 parts by weight of the carbon nanotubes and 5 to 100 parts by weight of the conductive polymer;

Molding a mixture including 100 parts by weight of the carbon nanotube and the conductive polymer composite, and 5 to 60 parts by weight of the ceramic according to the purpose of molding;

 Molding the carbon nanotubes and the conductive polymer composite into a structure for forming an air layer of a material by using a foaming agent when dispersing the carbon nanotubes in a material using one of silicon, epoxy, and urethane in addition to ceramics; To

(Thermally conductive) body made of carbon nanotubes and conductive polymer complexes.

The details of other embodiments are included in the detailed description.

The carbon nanotubes and the conductive polymer composite according to the present invention can be prepared by dispersing carbon nanotubes and conductive polymer composites in ceramic, silicone, epoxy, and urethane to control the amount of carbon nanotubes and conductive polymer complexes, A sound absorbing agent, a negative electrode agent, and the like.

In addition, when the carbon nanotubes and the conductive polymer composite are formed and dispersed in ceramic, silicon, or epoxy urethane, which is another material, as compared with the resistance values dispersed in the carbon nanotubes, conductive polymers, and other materials, It has several tens to hundreds of times less resistance, and has features such as low cost, excellent performance, and excellent productivity, which makes carbon nanotubes and conductive polymer composites more efficient.

In addition, since it has low viscosity and can be produced in any shape, it is excellent in workability, and its process is simple, commercialization is easy, and mass production is possible.

In addition, since a heating element is provided using carbon nanotubes having a very high thermal conductivity of 1,800 to 6,000 W / mk, a small amount of carbon nanotubes can provide excellent thermal conductivity, heat generation and electric conductivity even under low voltage.

1 is a schematic diagram for preparing a composition.

Advantages and features of embodiments of the present invention and methods of achieving them will be apparent with reference to the embodiments of the appended claims. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. The following terms are defined in consideration of the functions in the embodiments of the present invention, which may vary depending on the intention of the user, the intention or the custom of the operator. Therefore, the definition should be based on the contents throughout this specification.

The composition according to the present invention can be prepared by mixing carbon nanotubes and conductive polymer complexes and then mixing them with ceramics, silicones, epoxies, urethanes, Can be formed in various ways.

Carbon nanotubes are exothermic materials having excellent mechanical strength and properties and thermal conduction characteristics, and have an anisotropic structure with a length of several tens to several tens of micrometers and a length of several tens to several hundreds of micrometers. In carbon nanotubes, one carbon atom is bonded to three different carbon atoms and has a structure in which a graphene sheet having a hexagonal honeycomb pattern is wound in a tube shape.

It is mechanically stable (about 100 times as much as iron) due to its structural characteristics, and has excellent chemical stability. Its electric resistance is about 10 ^-1 ~ 10 ^-4 Ω. It is made of graphite or carbon And has a lower density than fibers and the like. In addition, since the length ratio to diameter (L / R) is high, it is advantageous to form a network structure by adding a small amount when dispersed in the polymer resin, and to easily form an electric conduction network and obtain excellent electric conductivity.

In order to make a mixture of the carbon nanotubes and the conductive polymer complex, the selected carbon nanotubes are rapidly heated at 100 to 120 ° C, and then subjected to a dispersion process by ultrasonic treatment in an acidic solution. Through the above process, the mixture of the carbon nanotubes and the conductive polymer complex can improve the dispersibility and the mixing property with the conductive polymer.

100 parts by weight of the carbon nanotubes prepared as described above include 5 to 100 parts by weight of the conductive polymer to produce a carbon nanotube and a conductive polymer composite. And more preferably 1 to 60 parts by weight based on 100 parts by weight of the carbon nanotubes to form a composite, it is possible to form a composite having higher conductivity and higher efficiency. Electromagnetic wave shielding agent, electromagnetic wave absorbing agent, heat sink, soundproofing agent, sound absorbing agent, negative electrode agent, etc. according to the purpose of use by dispersing the amount of the conductive polymer complex in the carbon nanotube. The carbon nanotubes and the conductive polymer composite can be easily mixed with ceramics and other materials and can be produced with higher efficiency by controlling the weight of the carbon nanotubes according to the purpose.

The carbon nanotube and the conductive polymer composite may contain 5 to 70 parts by weight, preferably 5 to 60 parts by weight, based on 100 parts by weight of the heat generating material according to the present invention. When the carbon nanotubes and the conductive polymer complex are contained in an amount of less than 5 parts by weight, the electrical conductivity of the composition is lowered and the resistance is increased. Therefore, the heat generation efficiency of the heating element is poor and the effect of electromagnetic shielding agent, electromagnetic wave absorbent, heat sink, soundproofing agent, sound absorbing agent, If it is more than 60 parts by weight, the bonding strength with the substance to be bonded is lowered and the strength is lowered, so that the durability is weak and the molding is not easy.

Therefore, when 5 to 60 parts by weight of the carbon nanotube and the conductive polymer composite are contained, the resistor has sufficient electrical conductivity and thermal conductivity, and the mechanical strength is not deteriorated with good processability and moldability.

Meanwhile, the carbon nanotubes are classified into single-walled carbon nanotubes and multi-walled carbon nanotubes according to the number of graphene sheets constituting the wall of the tube, Nanotubes may be present in the form of bundles.

The carbon nanotubes may be single walled carbon nanotubes (SWNTs), double-walled carbon nanotubes (DWNTs), thin multi-walled carbon nanotubes And may be at least one selected from multi-walled carbon nanotubes (MWNTs), and preferably multi-walled carbon nanotubes can be used.

The carbon nanotubes may have a diameter of 1 to 20 nm and a length of 1 to 100 탆. If the length of the carbon nanotubes is less than 1 mu m, the durability of the carbon nanotubes may be lowered and the electrical conductivity may be lowered, resulting in insufficient heat generation. If the length exceeds 100 mu m, the surface of the composition may be uneven.

Embodiments of the present invention are applied to respective materials of ceramics, silicones, epoxies, and urethane.

For example, a carbon nanotube, a conductive polymer composite, and a ceramic are mixed with each other at a predetermined ratio to produce a resistor. At this time, the carbon nanotubes are prepared in the form of powder, and the mixture of the conductive polymer complex in powder state and the mixed and dispersed mixture can be dispersed in the ceramic.

The conductive polymer material may be at least one selected from the group consisting of polypropylene (PP), polyoxymethylene (POM), acrylonitrile-butadiene-styrene resin, nylon (PA), polyvinylchloride (PC), polyethylene (PE), modified polyphenylene oxide Polybutylene terephthalate, PPS (polyphenylenesulfide), PTFE (polytetrafluoroethylene), PPA (Polyphthalamide), PC (Polycarbonate), PS (Polystyrene) and UHMW-PE (Ultra High Molecular Weight Polyethylene) .

On the other hand, the carbon nanotubes are heat-treated before mixing to prepare the carbon nanotubes, the conductive polymer composite and the ceramic mixture composition. This is to remove the moisture contained in the carbon nanotubes and rapidly heated at 100 to 120 ° C. It is possible to improve the performance of the composition prepared by increasing the mixing and dispersibility and removing moisture when the conductive polymer is mixed with other materials by rapidly heating to remove moisture.

In addition, carbon nanotubes can be further dispersed before being dispersed in conductive polymers and ceramics. That is, the carbon nanotubes are carbon nanotubes dispersed through the carbon nanotube dispersion process and are uniformly dispersed in the respective materials of the conductive polymer.

Carbon nanotubes are easily formed by bundle or agglomerate structure composed of a plurality of carbon nanotubes because aggregation by van der Waals force between carbon nanotubes is likely to occur, Agglomerates should be dispersed through the carbon nanotube dispersion process before use.

As a method of dispersing carbon nanotubes, there is a method of dispersing carbon nanotubes in a solution, such as ultrasonic treatment. For example, a method in which carbon nanotubes are put in a solvent and the carbon nanotubes are dispersed in a solvent through ultrasonic treatment can be used. At this time, it is also possible to increase the hydrophilicity (hydrophilicity) of the carbon nanotubes by adding a substance such as a surfactant to the solvent in the ultrasonic treatment.

In the present invention, the carbon nanotubes can be ultrasonicated in an acidic solution before being dispersed in the ceramic. The acidic solution may be nitric acid, sulfuric acid, hydrochloric acid, or a mixture thereof. In this case, the dispersion may be carried out for 10 to 120 minutes. For example less than 2 hours under ultrasound at 50 to 60 Hz in nitric acid. This is problematic in that the crystallinity of the carbon nanotubes is deteriorated when the ultrasonic treatment is performed for more than 2 hours. In addition, when the carbon nanotubes are dispersed in the acidic solution as described above, the dispersibility of the carbon nanotubes and the mixing property of the conductive polymer and the ceramic can be improved.

In this specification, a method of ultrasonically treating carbon nanotubes in an acidic solution by a method of dispersing carbon nanotubes has been described. However, the present invention is not limited thereto and any method may be used as long as it is a method of dispersing carbon nanotubes.

The carbon nanotubes dispersed through the carbon nanotube dispersion process undergo a dispersion process with the conductive polymer complex.

In this case, the carbon nanotubes and the conductive polymer complex are mixed and dispersed in the ceramics by the rotation dispersion by the squeak,

a. How to mix and mix by applying heat to materials to be mixed

b. Mixing the substances to be mixed in a solvent

c. A method in which a monomer to be mixed is mixed and then polymerized can be used.

The amount of the carbon nanotubes and the conductive polymer composite dispersed in the ceramics may be 5 to 60 parts by weight based on 100 parts by weight of the total of the carbon nanotubes, the conductive polymer composite, and the ceramics. Other materials may be in monomeric form, carbon nanotubes in dispersed powder form, and conductive polymer in liquid or powder form.

The dispersing device disperses the carbon nanotubes and the conductive polymer complex dispersed in various materials. The dispersing device is not particularly limited and any material provided with ultrasonic devices can be used. Specifically, the carbon nanotubes and the conductive polymer complex are dispersed in the monomer while maintaining the temperature inside the flask above the melting point of the monomer using a double jacket flask. At this time, water is flowed into the double jacket by using a circulating device and the temperature of the flask is maintained by keeping the water temperature constant.

Next, the carbon nanotubes and the conductive polymer composite are uniformly dispersed in the ceramic by irradiating ultrasonic waves to the carbon nanotube and the conductive polymer composite ceramic. Specifically, the ultrasonic wave is applied to the flask through the ultrasonic device to operate the stirring device to progress the dispersion. At this time, the ultrasonic irradiation time may be 5 minutes to 6 hours. If the ultrasonic irradiation time exceeds 6 hours, there is a problem that the carbon nanotubes may be destroyed. If the irradiation time is less than 5 minutes, dispersion is not achieved properly.

When the carbon nanotubes are dispersed in ceramics by irradiating ultrasonic waves, the viscosity of the mixture is lowered to improve the workability in the production of a heating element. In addition, when comparing before and after dispersion, the viscosity after dispersion in the same composition ratio is 1.5 To about 2 times, so that the composition ratio of the carbon nanotubes can be increased by 1.5 to 2 times in order to realize the same viscosity, so that the amount of the carbon nanotubes contained in the heating body is increased to improve the heating efficiency of the heating body .

In addition, the mixing efficiency of the carbon nanotubes and the ceramic is increased to smooth the surface of the heating element, and the electrical conductivity is improved by lowering the resistance, thereby increasing the efficiency of the composition.

On the other hand, carbon nanotubes, conductive polymer complexes and ceramics can be mixed by mixing screws to increase the synthesis. The mixing screw used in this case is formed with a plurality of auxiliary mixing parts in the screw thread, and the auxiliary mixing parts are formed by shifting the auxiliary mixing parts located on both sides of the screw thread formed by projecting a plurality of screw threads in the screw threads in opposite directions. At this time, the auxiliary mixing portion may be formed so as to be inclined. In this case, when viewed from the side of the screw, that is, the direction perpendicular to the screw longitudinal direction, the plurality of auxiliary mixing portions may have a shape of 'V'.

As described above, by using the mixing screw in which the auxiliary mixing portion is further formed in the screw thread, the carbon nanotubes and the conductive polymer composite are uniformly dispersed evenly in the ceramic, thereby achieving smooth mixing.

Accordingly, the carbon nanotubes and the conductive polymer composite may be dispersed in the ceramic and the mixture may be injection-molded to obtain a composition. The composition may be used as a heating element.

At this time, in order to form a more uniform molecular structure in consideration of the characteristics of the carbon nanotubes, it is preferable to inject (compress) the carbon nanotubes at a compression ratio of 3.5 to 5: 1.

On the other hand, the mixture in which the carbon nanotubes and the conductive polymer composite are dispersed and mixed in the ceramic can be made of a thermosetting material, and the composition can be prepared using the masterbatch.

The molded composition may be subjected to further post-treatment to prevent grain structure and morphological structural deformations, which may be accomplished multiple times by heating at 90-130 < 0 > C for 40-80 minutes and cooling for 20-40 minutes Can be repeated 2 to 5 times.

The composition of the present invention can be produced in various shapes such as circular or rectangular plate, spherical, and rod shapes, and an air layer can be formed by using a foaming agent. Thus, And the like.

In addition, since the antibody directly generates heat on the surface when the power of the composition is connected by connecting the electrodes, heat loss due to heat transfer can be minimized, and at the same time, a rapid temperature rise rate can be obtained. This can reduce power consumption and can be manufactured in various forms for use such as heat insulation, insulation, or heating. In addition, the present invention can be used in various forms in related industries. For example, the composition according to the present invention can be used for a heating sheet, a hot air fan, an exothermic thermostat or an exothermic radiator, and an electromagnetic wave shielding and absorbing agent can prevent electromagnetic waves emitted from a mobile phone and a TV. And the soundproofing agent can be used as a soundproofing agent in the interior of a vehicle, outside, a recording room, or a speaker.

Hereinafter, the present invention will be described in more detail with reference to the following examples, which should not be construed as limiting the scope of the present invention.

≪ Example 1 >

Carbon nanotubes (multi-wall, powder type, diameter 10 nm, length 50 μm) were heat-treated at 100 ° C to remove moisture.

Carbon nanotubes were treated with 70% nitric acid (HNO ₃ ) and dispersed by ultrasonic treatment (40 W, 55 Hz) for 20 minutes. Neutralized through filtering after dispersion, and then dried in an oven at 60 ° C

A mixture containing 100 parts by weight of carbon nanotubes and 70 parts by weight of a conductive polymer was prepared to prepare a carbon nanotube and a conductive polymer composite.

100 parts by weight of the carbon nanotubes and the conductive polymer composite were put in a double jacket flask with respect to 55 parts by weight of the ceramic, and the mixture was stirred (25 to 30 DEG C, 300 rpm, 5 hours).

The mixture was irradiated with ultrasound (300 W, 60 Hz) using a disperser for 4 hours and agitated (400 rpm) to evenly disperse the carbon nanotubes and the conductive polymer complex in the ceramic.

A rectangular parallelepiped resistance heating body having a width of 8 cm and a length of 2 cm and a thickness of 5 mm was prepared by the above-mentioned process in which a carbon nanotube and a conductive polymer composite were uniformly dispersed, and the product was molded in a vacuum state in a vacuum state .

≪ Example 2 >

Carbon nanotubes (multi-wall, powder type, diameter 10 nm, length 50 μm) were heat-treated at 100 ° C to remove moisture.

Carbon nanotubes were treated with 70% nitric acid (HNO ₃ ) and dispersed by ultrasonic treatment (40 W, 55 Hz) for 20 minutes. Neutralized through filtering after dispersion, and then dried in an oven at 60 ° C

A mixture containing 100 parts by weight of carbon nanotubes and 70 parts by weight of a conductive polymer was prepared to prepare a carbon nanotube and a conductive polymer composite.

80 parts by weight of the carbon nanotubes and the conductive polymer composite were put into a double jacket flask with respect to 60 parts by weight of silicone, and the mixture was stirred (25 to 30 DEG C, 300 rpm, 5 hours).

The mixture was irradiated with ultrasound (300 W, 60 Hz) for 4 hours using a dispersing machine and agitated (400 rpm) to uniformly disperse the carbon nanotubes and the conductive polymer complex in silicon.

A rectangular parallelepiped resistor having a width of 8 cm, a length of 2 cm, and a thickness of 5 mm was produced from the silicon in which the carbon nanotubes and the conductive polymer composite were uniformly dispersed.

≪ Example 3 >

Carbon nanotubes (multi-wall, powder type, diameter 10 nm, length 50 μm) were heat-treated at 100 ° C to remove moisture.

Carbon nanotubes were treated with 70% nitric acid (HNO ₃ ) and dispersed by ultrasonic treatment (40 W, 55 Hz) for 20 minutes. Neutralized through filtering after dispersion, and then dried in an oven at 60 ° C

A mixture containing 100 parts by weight of carbon nanotubes and 80 parts by weight of a conductive polymer was prepared to prepare a carbon nanotube and conductive polymer composite.

95 parts by weight of a carbon nanotube and a conductive polymer composite were charged into a double jacket flask with respect to 10 parts by weight of epoxy, and the mixture was stirred (25 to 30 DEG C, 300 rpm, 5 hours).

The mixture was irradiated with ultrasound (300 W, 60 Hz) for 4 hours using a dispersing machine and agitated (400 rpm) to evenly disperse the carbon nanotubes and the conductive polymer complex in the epoxy.

A rectangular parallelepiped resistance heating body having a width of 8 cm and a length of 2 cm and a thickness of 5 mm was prepared through the above process, in which the carbon nanotubes and the conductive polymer composite were uniformly dispersed.

<Example 4>

Carbon nanotubes (multi-wall, powder type, diameter 10 nm, length 50 μm) were heat-treated at 100 ° C to remove moisture.

Carbon nanotubes were treated with 70% nitric acid (HNO ₃ ) and dispersed by ultrasonic treatment (40 W, 55 Hz) for 20 minutes. Neutralized through filtering after dispersion, and then dried in an oven at 60 ° C

A mixture containing 100 parts by weight of carbon nanotubes and 90 parts by weight of a conductive polymer was prepared to prepare a carbon nanotube and a conductive polymer composite.

90 parts by weight of a carbon nanotube and a conductive polymer composite were charged into a double jacket flask with respect to 50 parts by weight of urethane, and the mixture was stirred (25 to 30 DEG C, 300 rpm, 5 hours).

The mixture was irradiated with ultrasound (300 W, 60 Hz) for 4 hours using a dispersing machine and stirred (400 rpm) to uniformly disperse the carbon nanotubes and the conductive polymer complex in the urethane.

A rectangular parallelepiped resistor having a width of 8 cm, a length of 2 cm, and a thickness of 5 mm was prepared by dispersing the carbon nanotubes and the conductive polymer composite uniformly.

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 as defined by the following claims It can be understood that

Claims (5)

Wherein the mixture of the carbon nanotubes and the conductive polymer complex comprises 5 to 100 parts by weight of the conductive polymer in 100 parts by weight of the carbon nanotubes to form a mixture of the carbon nanotubes and the conductive polymer complex;
Wherein the carbon nanotubes and the conductive polymer complex are prepared by forming a mixture containing 100 parts by weight of the carbon nanotubes and the conductive polymer composite, and 5 to 60 parts by weight of the ceramic according to the purpose of the molding. Compositions with high utilization and efficiency.
The method according to claim 1,
In addition to the above ceramics, carbon nanotubes and conductive polymer complexes can be formed from a composition of carbon nanotubes and conductive polymer complexes using one of silicon, epoxy, and urethane, and air layers are formed by using a foaming agent during dispersion. Compositions with high utilization and efficiency.
The method according to claim 1,
As a pretreatment method for the carbon nanotubes, rapid heating at 100 to 120 ° C. and heat treatment are performed to remove water contained in the carbon nanotubes. Composition.
The method of claim 3,
Wherein the carbon nanotubes to be subjected to the pretreatment have a diameter of 1 to 20 nm and a length of 1 to 100 탆, wherein the carbon nanotubes and the conductive polymer composite have high utilization and efficiency.
The method of claim 3,
The carbon nanotube may be a single walled carbon nanotube (SWNT), a double-walled carbon nanotube (DWNT), a thin multi-walled carbon nanotube, Wherein the carbon nanotube is at least one selected from the group consisting of carbon nanotubes, carbon nanotubes (MWNTs), and multi-walled carbon nanotubes (MWNTs).

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