WO2022220340A1 - Method for manufacturing translucent polymer composite material, and translucent polymer composite material manufactured thereby - Google Patents

Abstract

The present invention relates to a method for manufacturing a translucent conductive polymer composite material having translucent properties, high conductivity, and exothermic properties, and to a translucent conductive polymer composite material manufactured thereby. The translucent conductive polymer composite material manufactured according to the method for manufacturing a translucent conductive polymer composite material of the present invention has high conductivity and exothermic properties that are excellent properties of a carbon-based filler (especially carbon nanotube) and bromobutyl rubber (BIIR). In addition, it is possible to address the limitations in terms of transparency of a conventional carbon composite material by manufacturing a translucent composite material having high conductivity and exothermic properties by forming uniform holes.

Description

Manufacturing method of translucent polymer composite material and translucent polymer composite material prepared accordingly

The present invention relates to a method for producing a translucent conductive polymer composite material having translucency, high conductivity, and exothermic properties, and to a translucent conductive polymer composite material manufactured thereby.

Carbon nanotubes (CNTs) were discovered by a Japanese scientist in 1991, and it took 20 years to mass-produce and apply a material with electrical properties higher than copper, thermal properties higher than diamond, and mechanical properties thousands of times that of steel. It has become an abnormality, and foreign substances are being applied as additives to various substances.

Carbon nanotubes mainly use materials containing carbon nanotubes, and development of materials having functions such as tensile strength, antistatic properties, conductivity, thermal conductivity, far-infrared emission and electromagnetic wave shielding is being actively conducted. For example, by using a polymer such as polyamide, polyester, polyether or polyimide, silicone, rubber, or an inorganic material such as glass or ceramic material as a matrix, and dispersing carbon nanotubes in the matrix, Many studies have been made regarding a composite material having functions such as antistatic, electrical conductivity, thermal conductivity and electromagnetic wave shielding, and a laminate in which the composite material is laminated.

In particular, recently, carbon-based materials have been widely used as materials for heating elements, but carbon-based materials are opaque materials and have a disadvantage in that they are difficult to apply to windows of houses or automobiles, or parts that require transparency of displays or touch panel elements. of carbon-based composite materials are opaque and have a problem in that their properties change when they have transparency.

In addition, as one of the rubber-based polymers, bromobutyl rubber (BIIR) has characteristics such as high tensile strength, vibration reduction, low permeability, and high resistance to aging and weathering. The reality is that the technology and application method for stably dispersing in the polymer matrix are lacking, so it cannot be applied in more various fields.

Accordingly, there is an urgent need for the development of a composite material having translucency while having higher conductivity, heat generation and mechanical properties by dispersing carbon nanotubes in a uniform and stable state in a polymer.

(Prior art document) Republic of Korea Patent Publication No. 10-2019-0083551

The present invention provides a method for producing a semi-transparent conductive polymer composite material having excellent translucency and heat generation property by forming uniform holes using a laser in order to solve the transparency limitation of the conventional carbon material, and a semi-transparent conductive polymer composite material manufactured according to the method To provide a transparent conductive polymer composite material.

In order to solve the above problem,

The present invention in one embodiment, (A) mixing bromobutyl rubber (BIIR) and hexane; (B) after mixing the carbon-based filler and isopropyl alcohol, sonicating by adding a dimethyl silicone oil (MEP) solution; (C) adding the mixture mixed in step (A) to the mixture mixed in step (B) and stirring; (D) hardening by injecting the mixture mixed in step (C) into a hot press; And, (E) provides a method for producing a translucent conductive polymer composite material comprising the step of forming a plurality of holes using a laser after the curing.

In step (A), bromobutyl rubber (BIIR) may be mixed in a composition ratio of 1 to 10 w/v%.

In step (B), the carbon-based filler and isopropyl alcohol may be mixed in a weight ratio of 1:50 to 1:500.

The content of the carbon-based filler in step (B) may be 1 to 35 wt%.

The step (C) may further include the step of additionally adding hexane so that the volume ratio of hexane and isopropyl alcohol to the mixture mixed in step (C) becomes 5:1 to 1:1.

In the step (D), the holes may be uniformly formed in a side-by-side arrangement or a staggered arrangement.

The carbon-based filler may be one selected from the group consisting of carbon nanotubes (CNT), graphene, artificial graphite, activated carbon, carbon black, and carbon fibers.

In addition, in one embodiment, the present invention provides a translucent conductive polymer composite material manufactured according to the method for manufacturing the translucent conductive polymer composite material.

The semi-transparent conductive polymer composite material prepared according to the method for producing a semi-transparent conductive polymer composite material of the present invention has high conductivity, which is an excellent property of both carbon-based fillers (especially carbon nanotubes) and bromobutyl rubber (BIIR). And it is possible to solve the limitations of transparency of the conventional carbon material by producing a translucent composite material having high conductivity and heat-generating properties as it is by forming uniform holes and having exothermic properties.

In addition, the translucent conductive polymer composite material according to the present invention can be attached or used as a curtain, which has visibility to see the outside landscape, can block the view from the outside, and serves as a planar heating element in winter for the purpose of cold protection can be used as

1 is a flowchart showing a method of manufacturing a translucent conductive polymer composite material according to the present invention.

2 is a schematic view showing the arrangement of holes in the translucent conductive polymer composite material according to the present invention.

3 is a tensile strength (Tensile strength), tensile strain (Tensile strain) and tensile stress (Tensile stress) measurement results (a to c) and Tensile test according to the hole arrangement according to Examples 1 and 5 according to the present invention; The photograph (d) of the specimen after that is shown.

4 is a graph showing tensile stress according to strain in Examples 1 to 8;

5 is an image showing photographs (a and b) and exothermic characteristics (c and d) of specimens prepared according to Comparative Example 1 and Example 1 in the present invention.

6 is a graph showing the exothermic temperature and exothermic cycle characteristics of the specimens prepared according to Comparative Example 1 and Example 1 in the present invention [(a) Comparative Example 1, (b) Example 1, (c) Comparison Example 1 vs Example 1].

7 is a graph showing the exothermic rate and exothermic cycle at 40W of the specimens prepared according to Comparative Examples 1 and 1 in the present invention [(a) Comparative Example 1, (b) Example 1, (c) Comparative Example 1 vs Example 1].

8 is a photograph taken according to the focal point by installing the translucent conductive polymer composite material according to the present invention on a window.

Since the present invention can have various changes and can have various embodiments, specific embodiments are illustrated in the drawings and will be described in detail in the detailed description.

However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present invention.

In the present invention, terms such as "comprises" or "have" are intended to designate that the features, numbers, steps, operations, components, parts, or combinations thereof described in the specification exist, but one or more other features It is to be understood that this does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Hereinafter, the present invention will be described in detail.

Conventional carbon-based composite materials having high conductivity and heating properties are opaque, and there is a problem in that properties change when they have transparency. In order to solve this problem, the present invention relates to a method for manufacturing a translucent composite material having high conductivity and heat-generating properties as it is by forming a hole in a carbon-based rubber composite material, and to a translucent conductive polymer composite material manufactured according to the method.

The present invention comprises the steps of (A) mixing bromobutyl rubber (BIIR) and hexane; (B) after mixing the carbon-based filler and isopropyl alcohol, sonicating by adding a dimethyl silicone oil (MEP) solution; (C) adding the mixture mixed in step (A) to the mixture mixed in step (B) and stirring; (D) hardening by injecting the mixture mixed in step (C) into a hot press; And, (E) provides a method for producing a translucent conductive polymer composite material comprising the step of forming a plurality of holes using a laser after the curing.

In the present invention, bromobutyl rubber (BIIR), hexane, carbon nanotube (CNT), carbon black, metal fiber, isopropyl alcohol and dimethyl silicone oil (MEP) are widely used in the art, so detailed descriptions are omitted. .

Hereinafter, the present invention will be described in detail with reference to FIG. 1 .

1 is a schematic view showing a method of manufacturing a translucent conductive polymer composite material according to the present invention.

Referring to FIG. 1, the method for producing a translucent conductive polymer composite material according to the present invention comprises the steps of (A) mixing bromobutyl rubber (BIIR) and hexane; (B) after mixing the carbon-based filler and isopropyl alcohol, sonicating by adding a dimethyl silicone oil (MEP) solution; (C) adding the mixture mixed in step (A) to the mixture mixed in step (B) and stirring; (D) hardening by injecting the mixture mixed in step (C) into a hot press; and (E) forming a plurality of holes using a laser after the curing.

First, in step (A), bromobutyl rubber (BIIR) is added to hexane and mixed by stirring.

The bromobutyl rubber (BIIR) is one of the polymers with excellent flexibility, elasticity, chemical stability and solubility, and in particular, has excellent self-healing properties and is used as a material for filling cracks or irregular holes in tires or ships.

The hexane is one of the non-polar solvents and is used as a solvent for uniformly dispersing the bromobutyl rubber (BIIR).

In the step (A), bromobutyl rubber (BIIR) may be mixed in a composition ratio of 1 to 10 w/v%, preferably in a composition ratio of 4 w/v%. At the 4 w/v% composition ratio, the dispersion degree of bromobutyl rubber (BIIR) in hexane is high and handling is easy, so that bromobutyl rubber (BIIR) can be more effectively dispersed uniformly.

Next, in step (B), the carbon-based filler and isopropyl alcohol may be mixed and sonicated, and then dimethyl silicone oil (MEP) may be added and mixed.

After mixing the carbon-based filler with isopropyl alcohol, it is treated with ultrasonic waves for 10 to 60 minutes, preferably for 30 minutes.

As the carbon-based filler, the carbon-based filler may be one selected from the group consisting of carbon nanotubes (CNT), graphene, artificial graphite, activated carbon, carbon black, and carbon fibers. The dried carbon-based filler tends to agglomerate strongly, which is caused by van der Waals force to form bundles and aggregate, thereby minimizing surface energy by minimizing interfacial contact with the solvent. is the action to do.

In the present invention, in order to disperse the agglomerated carbon-based filler, the agglomerated carbon-based filler is mixed with isopropyl alcohol and then sonicated to disperse the carbon-based filler.

Since the solvent mixed with the carbon-based filler should be evaporated without leaving air for excellent conductivity when the solvent is evaporated later, it is preferable to use isopropyl alcohol. Specifically, the isopropyl alcohol has a stable structure composed of three carbons and one oxygen, so that a material having a hydrophobic part or a hydrophilic part easily contacts the surface of the carbon-based filler.

In addition, the carbon-based filler partially dissolved in isopropyl alcohol is completely mixed through ultrasonic waves.

The ultrasonic treatment breaks the van der Waals force between the mutual surfaces of the aggregated carbon-based filler bundle by applying a physical force, and separates the carbon-based filler into a single carbon-based filler. In the present invention, the ultrasonic treatment method is a bath sonication method in which the ultrasonic treatment is performed while maintaining the temperature below room temperature, preferably 10 to 23 ° C. within a time of 10 to 60 minutes to minimize damage to the carbon-based filler as well as to stabilize the dispersion. can

The ultrasonic wave intensity (spatial peak pulse average intensity: ISPPA) in the frequency range of about 40 to 5,000 kHz by using ultrasonic waves that vary between about 50 to 1,000 mW, it is possible to obtain a stable dispersion in which the carbon-based filler is evenly dispersed.

In addition, when using a solvent other than isopropyl alcohol and ultrasonic method as the solvent and other physical methods, the carbon-based filler cannot be completely separated and stably dispersed in the solvent, so isopropyl alcohol and ultrasonication are performed together It is preferable to do

The carbon-based filler and isopropyl alcohol are mixed in a weight ratio of 1:50 to 1:500, preferably 1:95 to 1:450 by weight. When the weight ratio of isopropyl alcohol based on the carbon-based filler is out of the above range, the aggregated carbon-based filler may not be separated and the separated carbon-based filler may not be stably dispersed in isopropyl alcohol.

In addition, when the carbon-based filler is carbon nanotube (CNT), the content of carbon nanotube (CNT) in the mixture is 1 to 35 wt%, preferably 5 to 20 wt%. It is possible to prepare a self-healing conductive rubber composite material in which carbon nanotubes (CNTs) are uniformly dispersed within the above range, and maintain properties such as excellent electrical conductivity, thermal conductivity and elasticity of carbon nanotubes (CNTs).

After adding a dimethyl silicone oil (MEP) solution to the mixed mixture, it is sonicated.

The ultrasonic treatment is performed under the same conditions as the ultrasonic treatment performed on the carbon-based filler and isopropyl alcohol, but for 5 to 20 minutes, preferably 10 to 15 minutes. If the ultrasonic treatment time is less than the lower limit, dimethyl silicone oil (MEP) cannot wrap the carbon-based filler, and if it exceeds the upper limit, it may rather prevent the dimethyl silicone oil (MEP) from wrapping the carbon-based filler, and in the future Immiscible with bromobutyl rubber (BIIR).

The dimethyl silicone oil (MEP) comes into contact with the hydrophobic part of isopropyl alcohol, and surrounds the dispersed carbon-based filler by ultrasonication.

The viscosity of the dimethyl silicone oil (MEP) is 70 to 200 cSt, preferably 100 to 150 cSt, and when the viscosity is less than the lower limit, the carbon-based filler cannot be wrapped, and when it exceeds the upper limit, the carbon-based filler is added to the solution It can be difficult to disperse within.

The dimethyl silicone oil (MEP) solution is a dimethyl silicone oil (MEP) solution having a concentration of 0.1 to 1%, preferably 0.2 to 0.5%. When the concentration of the dimethyl silicone oil (MEP) solution is less than the lower limit, the carbon-based filler cannot be wrapped, and when it exceeds the upper limit, a more stable dispersion cannot be obtained.

Next, in step (C), the mixture mixed in step (A) is added to the mixture mixed in step (B) and stirred.

Stir the mixture mixed in step (C) at 500 to 1,500 rpm for 30 minutes so that excess hexane and isopropyl alcohol are first mixed and bromobutyl rubber (BIIR) is completely dissolved in the carbon-based filler solution. may be doing

Next, the mixture mixed in step (C) may be injected into a hot press and then cured. Specifically, the mixture mixed in step (C) may be injected into a hot press, which is a molding die, and then cured at 120° C. and 4,000 psi for 10 minutes.

In addition, by preparing the mixture mixed in step (D) in the form of a planar invention film or window, the translucent conductive polymer composite material according to the present invention can be attached to a window or used as a curtain, and a planar heating element in winter It can be used for cold weather purposes.

Before step (C), the step of evaporating the solvent present in the mixture mixed in step (B) may be further included.

Finally, in step (E), a plurality of holes may be formed in the cured composite material using a laser. By forming the hole, a translucent conductive polymer composite material can be manufactured.

The laser may be using a CO ₂ laser cutting system.

The size (diameter) of the holes may be 0.5 to 2 mm, preferably 1 mm, and the spacing between the holes may be 0.5 to 2 mm, preferably 1 mm.

The holes may be uniformly formed in a side-by-side arrangement or a staggered arrangement.

2 is a schematic view showing the arrangement of holes in the translucent conductive polymer composite material.

Referring to FIG. 2 , in a side-by-side arrangement, holes are formed in the same column in all rows, and in a staggered arrangement, holes are formed by alternating rows between rows.

The holes may have similar tensile strength according to the side-by-side arrangement or the staggered arrangement, but in the case of the staggered arrangement, the tensile strain may be greater than that of the side-by-side arrangement of the composite material.

The translucent conductive polymer composite material is manufactured in a solution method, so it is easy to handle. It has a low cost effect.

The semi-transparent conductive polymer composite material prepared according to the method for producing the semi-transparent conductive polymer composite material of the present invention has excellent properties of high conductivity and By producing a translucent composite material that has exothermic properties and uniform holes to form high conductivity and heat-generating properties as it is, it is possible to solve the limitations of transparency of conventional carbon materials.

In addition, in one embodiment, the present invention provides a translucent conductive polymer composite material manufactured according to the method for manufacturing the translucent conductive polymer composite material.

The translucent conductive polymer composite material according to the present invention can be attached or used as a curtain, which has visibility to see the outside landscape, can block the view from the outside, and is used as a planar heating element in winter for cold protection purposes This is possible.

Hereinafter, the present invention will be described in more detail through Examples and the like according to the present invention, but the scope of the present invention is not limited by the Examples presented below.

[Example]

Example 1. Preparation of Translucent Conductive Polymer Composite Material Containing 5% by Weight of CNTs (Forming Holes in Staggered Arrangement)

A 4% (w/v) solution of bromobutyl rubber (BIIR) in hexane was prepared. Then, 5% (w / w) of carbon nanotubes (CNT) was added to isopropyl alcohol to disperse, and 4% (w / w) of dimethyl silicone oil (MEP) solution was added to the carbon nanotube (CNT) solution. added and sonicated. Then, the bromobutyl rubber (BIIR) solution was slowly added to the carbon nanotube (CNT) solution and mixed at the maximum speed for 30 minutes. Thereafter, isopropyl alcohol and hexane used as solvents were evaporated, a carbon nanotube (CNT)-bromobutyl rubber (BIIR) composite material was injected into a hot press, and a 0.5 micron thickness gauge was used at 120° C., 4000 psi. It was cured for 10 minutes. A translucent conductive polymer composite material was prepared by forming a plurality of holes in a staggered arrangement using a laser (CO ₂ laser cutting system, hole diameter 1 mm, spacing 1 mm) in the cured composite material.

Example 2. Preparation of Translucent Conductive Polymer Composite Material Containing 10% by Weight of CNT (Forming Holes in Staggered Arrangement)

A translucent conductive polymer composite material was prepared in the same manner as in Example 1, except that 10% (w/w) carbon nanotube (CNT) was used.

Example 3. Preparation of Translucent Conductive Polymer Composite Material Containing 15% by Weight of CNTs (Formation of Holes in Staggered Arrangement)

A translucent conductive polymer composite material was prepared in the same manner as in Example 1, except that 15% (w/w) carbon nanotube (CNT) was used.

Example 4. Preparation of Translucent Conductive Polymer Composite Material Containing 20% by Weight of CNT (Forming Holes in Staggered Arrangement)

A translucent conductive polymer composite material was prepared in the same manner as in Example 1, except that 20% (w/w) carbon nanotube (CNT) was used.

Example 5 Preparation of Translucent Conductive Polymer Composite Material Containing 5% by Weight of CNT (Positioning Holes in Side by Side Arrangement)

A translucent conductive polymer composite material was prepared in the same manner as in Example 1, except that a plurality of holes were formed in a side by side arrangement in the cured composite material using a laser.

Example 6. Preparation of Translucent Conductive Polymer Composite Material Containing 10% by Weight of CNT (Positioning Holes in Side by Side Arrangement)

A translucent conductive polymer composite material was prepared in the same manner as in Example 5, except that 10% (w/w) carbon nanotube (CNT) was used.

Example 7. Preparation of Translucent Conductive Polymer Composite Material Containing 15% by Weight of CNTs (Positioning Holes in Side by Side Arrangement)

A translucent conductive polymer composite material was prepared in the same manner as in Example 5, except that 15% (w/w) carbon nanotube (CNT) was used.

Example 8. Preparation of Translucent Conductive Polymer Composite Material Containing 20% by Weight of CNTs (Positioning Holes in Side by Side Arrangement)

A translucent conductive polymer composite material was prepared in the same manner as in Example 5, except that 20% (w/w) carbon nanotubes (CNT) were used.

Comparative Example 1: Preparation of a conductive polymer composite material without pores containing 5 wt% of CNT

It was prepared in the same manner as in Example 1, except that only the curing step was performed without the step of forming a hole.

Comparative Example 2: Preparation of non-porous conductive polymer composite material containing 10% by weight of CNT

It was carried out in the same manner as in Comparative Example 1, but was prepared by using 10% (w/w) carbon nanotubes (CNT).

Comparative Example 3: Preparation of non-porous conductive polymer composite material containing 15% by weight of CNT

It was carried out in the same manner as in Comparative Example 1, but was prepared by using 15% (w/w) carbon nanotubes (CNT).

Comparative Example 4: Preparation of a conductive polymer composite material without pores containing 20 wt% of CNT

It was carried out in the same manner as in Comparative Example 1, but was prepared by using 20% (w/w) carbon nanotubes (CNT).

Experimental Example 1: Measurement of surface resistance and electrical conductivity

Table 1 below is a table showing the surface resistance and electrical conductivity of the carbon-based conductive polymer composite materials prepared according to Comparative Examples 1 to 4, respectively (in the case of Examples, it is difficult to measure the surface resistance due to holes).

Sample (n=2)	Surface Resistivity (Ohm/sq)	Electrical Conductivity (S/cm)
Comparative Example 1	45.40±9.83	0.50±0.06
Comparative Example 2	10.81±4.33	1.95±0.58
Comparative Example 3	5.92±1.51	3.12±0.91
Comparative Example 4	1.88±2.24	3.76±0.42

Referring to Table 1, as the content of carbon nanotubes (CNT) increased, the surface resistance decreased from 45.40±9.83 to 1.88±2.24 Ω/sq, and the electrical conductivity increased from 0.56±0.06 to 3.76±0.42 S/cm. did. Through this, carbon nanotubes (CNTs) uniformly dispersed in a bromobutyl rubber (BIIR) matrix provide efficient electrical properties to the electrically conductive elastomer composite film to maintain a uniform connection between the tubes and conductive carbon nanotubes (CNTs). ) was confirmed to effectively filter the network.

Experimental Example 2: Tensile Analysis

The specimens according to Examples 1 to 5 were tested at a size of 20×50 mm and a head speed of 500 mm/min.

Figure 3 shows the results of tensile strength and tensile strain (Tensile strain) measurement according to the hole arrangement according to Examples 1 and 5 and photographs of the specimen after the tensile test.

Referring to FIG. 3 , it was confirmed that the tensile strength was similar depending on the location of the hole, but the tensile strain was larger in the staggered arrangement.

4 is a graph showing tensile stress according to strain in Examples 1 to 8;

Referring to FIG. 4 , depending on the content of the carbon nanotubes, similar tensile stresses were exhibited for each arrangement of pores, and the staggered arrangement was higher than the side-by-side arrangement according to the arrangement of the pores.

Experimental Example 3: Planar heating characteristic analysis

Heating condition: After cutting Comparative Examples 1 and 1 to a size of 150 × 210 mm ² and attaching conductive copper tape to both ends to connect them, a voltage of 20 to 58V and a current of 0.34 to 0.91A were supplied with a DC power supply. It was heated at 10-50W of power.

Temperature change measurement: An infrared thermal image was taken using a FLIR IR camera to measure temperature change.

Heating rate measurement: The heating rate of Comparative Example 1 and Example 1 was measured at an average of 40W by supplying an average voltage of 50V and an average current of 0.8A as a DC power supply, and the measurement environment was an average of 25°C, 42-48% relative humidity. was measured in

Measurement of exothermic cycle: The measurement of the exothermic cycle of Comparative Example 1 and Example 1 was measured under the same conditions as the measurement of the exothermic rate, and in order to check the safety and continuity of heat generation, heat was generated at 40W for 5 minutes and cooled for 5 minutes. One exothermic cycle was measured.

5 is an image showing photographs and exothermic characteristics of specimens prepared according to Comparative Example 1 and Example 1. FIG. It was confirmed that the translucency was exhibited in Example 1 with uniform interlacing holes as compared with Comparative Example 1 without holes, and it was confirmed that the highest heating temperature was higher and the heating uniformity was also better.

6 is a graph comparing the heating rate while heating the specimens prepared according to Comparative Example 1 and Example 1 at 10 to 50 W, respectively [control is Comparative Example 1, ST (semi transparency) is Example 1, at this time One heating temperature is within a 150×150 mm box. average exothermic temperature]. In the case of the translucent conductive polymer composite material with holes formed compared to the composite material without holes, the maximum heating temperature is higher and the heat generation rate and cooling rate are faster due to the uniform transfer of heat due to the uniform arrangement of the holes. could It was found that this was an ideal shape as a heating element.

7 is a graph showing the exothermic rate and exothermic cycle at 40W of the specimens prepared according to Comparative Examples 1 and 1 [(a) Comparative Example 1, (b) Example 1, (c) Comparative Example 1 vs. Example 1 (control is Comparative Example 1, ST (semi transparency) is Example 1), at this time, the indicated exothermic temperature is within a 150 × 150 mm box average exothermic temperature]. This shows a high heating effect even at a low power of 40W, and the thermal stability according to the heating cycle was the same for both samples.

Referring to FIGS. 5 to 7 , it was found that the heat-generating properties of the translucent conductive polymer composite material with holes were better than the composite material without holes.

Experimental Example 4: Translucency Analysis

Translucency was confirmed by installing the translucent conductive polymer composite material prepared in Example 1 on a window.

8 shows a photograph according to the focus of the translucent conductive polymer composite material installed on the window.

Referring to FIG. 8 , it was confirmed that the translucent conductive polymer composite material according to the present invention has translucency in the photograph taken with the focus on the composite material and the photograph with the focus on the landscape.

Claims (7)

1. (A) mixing bromobutyl rubber (BIIR) and hexane;

   (B) after mixing the carbon-based filler and isopropyl alcohol, sonicating by adding a dimethyl silicone oil (MEP) solution;

   (C) adding the mixture mixed in step (A) to the mixture mixed in step (B) and stirring;

   (D) hardening by injecting the mixture mixed in step (C) into a hot press; and,

   (E) A method for producing a translucent conductive polymer composite material comprising the step of forming a plurality of holes using a laser after the curing.
2. The method of claim 1,

   In the step (A), bromobutyl rubber (BIIR) is mixed in a composition ratio of 1 to 10 w/v%. Method for producing a translucent conductive polymer composite material.
3. The method of claim 1,

   In the step (B), the carbon-based filler and isopropyl alcohol are mixed in a weight ratio of 1:50 to 1:500. Method for producing a translucent conductive polymer composite material.
4. The method of claim 1,

   The method for producing a translucent conductive polymer composite material, characterized in that the content of the carbon-based filler in step (B) is 1 to 35 wt%.
5. The method of claim 1,

   The method of manufacturing a translucent conductive polymer composite material, characterized in that in the step (D), the holes are uniformly formed in a side-by-side arrangement or a staggered arrangement.
6. The method of claim 1,

   The carbon-based filler is a method of manufacturing a translucent conductive polymer composite material, characterized in that one selected from the group consisting of carbon nanotubes (CNT), graphene, artificial graphite, activated carbon, carbon black, and carbon fiber.
7. A semi-transparent conductive polymer composite material manufactured according to the method of any one of claims 1 to 6.

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