KR20180011935A - Ingradients of conducting dispersion containing metal particles and nanocarbon materials, and their fabrication method - Google Patents

Abstract

The present invention relates to a conductive dispersion composition having a metal particle and nano-carbon, and a method for manufacturing the same. The method for manufacturing the conductive dispersion composition having the metal particle and the nano-carbon comprises: a step of preparing a complex particle of a metal particle/nano-carbon-core/shell structure, wherein the nano-carbon is coated on a surface of the metal particle; a step of reforming a surface of the complex particle; and a step of forming a higher-order structure composition through a multiple hydrogen bonding reaction by mixing an isocyanate-based compound and a pyrimidine-based compound with the complex particle having the reformed surface. Therefore, the present invention easily distributes materials without using a dispersant by applying a functional group for a multiple hydrogen bond to the nano-carbon. The present invention increases conductivity by applying the complex particle having the metal particle having high conductivity and the nano-carbon. The present invention does not use the dispersant, thereby preventing reduction of the conductivity caused by the dispersant.

Description

TECHNICAL FIELD [0001] The present invention relates to a conductive dispersion composition containing metal particles and nanocarbons,

The present invention relates to a conductive dispersion composition containing metal particles and nanocarbons, and more particularly, to a method of preparing a conductive dispersion composition comprising metal nanoparticles and nanocarbons, and more particularly, The present invention relates to a conductive dispersion composition comprising one metal particle and a nano-carbon and a method for producing the same.

BACKGROUND ART Conductive carbon nanomaterials such as carbon nanotubes (CNT), graphite, graphene, carbon black, and carbon fiber are generally used for coloring, shielding, transparent electrodes, It can be applied to various technical fields such as antistatic, electromagnetic wave shielding, energy generation and storage electrode material, heat radiation material, polymer composite, metal composite, ceramic composite, conductive fiber and the like. In order to satisfy requirements that can be applied to various technical fields such as the production of a carbon nano material in the form of a coating or a fiber, a method of producing a dilute solution or a dispersion of a high viscosity paste type in which carbon nanomaterial is finely and uniformly dispersed It is important.

Dispersants such as surfactants, copolymer polymers, and ionic liquids are essentially used to prepare coating liquids or pastes containing carbon nanomaterials. This is because the conventional carbon nanotube dispersion composition and its preparation method, the conductive coating liquid composition containing the carbon nanotube dispersion composition and the carbon nanotube dispersion composition thereof, the carbon nanotube dispersion composition, the carbon black dispersion, ≪ / RTI > When the carbon nanomaterial dispersion is prepared using the dispersing material as described above, although dispersion is easy, there arises a problem that conductivity is lacking. Stable dispersions of ferromagnetic carbon-coated metal nanoparticles: preparation via surface initiated atom transfer radical polymerization, J. Mater. Chem., 2012, 22, 12064 'is a technique of dispersing carbon nanomaterials by repulsing charges by combining a polymer having a charge after surface modification of the carbon nanomaterial. In this case, the cost of the charged polymer is considerable, and since the molecular weight of the polymer is much larger than that of the carbon nanomaterial, it takes up a large proportion in the dispersion and has a disadvantage that the amount of the polymer is increased and the conductivity is reduced.

Accordingly, when a conductive coating liquid or a conductive face using a conductive carbon nanomaterial is manufactured while maintaining the conductivity of a carbon nanomaterial without using a dispersant, costs can be reduced and the process can be simplified. In addition, when metal particles having high conductivity are introduced together with the carbon nanomaterial, a high conductivity dispersion of the carbon nanomaterial and the metal particles can be obtained. However, since metal oxide particles have a high surface oxidation degree, there is a problem in that when the dispersion is simply prepared by mixing the carbon nanomaterial and the metal particles, the conductivity of the dispersion is gradually reduced.

Korean Patent Application Publication No. 10-2016-0029715 Korean Patent Application Publication No. 10-2016-0066494

J. Mater. Chem., 2012, 22, 12064

Accordingly, an object of the present invention is to provide a conductive dispersion composition comprising metal particles and nanocarbons that are easily dispersed in a material without using a dispersant by introducing a functional group capable of forming multiple hydrogen bonds in the nanocarbon, and a method of manufacturing the same will be.

In addition, it is possible to increase the conductivity by applying the composite particles including the metal particles having high conductivity and the nanocarbon, and to improve the conductivity by using the metal particles and the nano-carbon which can prevent the conductivity from being reduced through the dispersant without using the dispersant And to provide a dispersion composition and a method for producing the same.

The above object can be accomplished by a method of manufacturing a composite particle, comprising: preparing a composite particle of metal particles / nano-carbon / core / shell structure coated with nanocarbon on the surface of metal particles; Surface-modifying the composite particle; A step of mixing the isocyanate compound and the pyrimidine compound to the surface-modified composite particle to form a high-order structural composition through a multiple hydrogen bonding reaction, and then conducting the preparation of a conductive dispersion composition comprising the metal particle and the nano- ≪ / RTI >

Here, the step of surface-modifying the composite particles may include a step of surface-modifying the surface of the nanocarbon to have a hydroxyl group (-OH) or a carboxyl group (-COOH), and the hydroxyl group or the carboxyl group may be mixed with an acid Wherein the acid is selected from the group consisting of hydrochloric acid (HCl), sulfuric acid (H ₂ SO ₄ ), nitric acid (HNO ₃ ), phosphoric acid (H ₃ PO ₄ ), hydrogen peroxide (H ₂ O ₂ ) .

Also, the multiple hydrogen bonding reaction is carried out by a reaction between a hydrogen donor, a hydrogen acceptor or an ionic hydrogen bond acceptor (D +). In the multiple hydrogen bonding reaction, The arrangement is preferably selected from the group consisting of ADA-DAD, ADD-DAA, AAA-DDD, and cationic AAA-DDD + pairs. AADD-DDAA-ADDA-DAAD, AAAD-DDDA, ADAA-DADD, AAAA-DDDD, and cationic AAAA-DDDD +.

The isocyanate compound is a compound having a plurality of isocyanate groups and is represented by the formula R1 (NCO) n, wherein n is an integer of 2 to 4, R1 is an aliphatic, alicyclic, araliphatic, aromatic, Type functional group, and the isocyanate-based compound is at least one selected from the group consisting of ethylene diisocyanate, 1,4-tetramethylene diisocyanate, 1,6-hexamethylene diisocyanate (HDI), 1,12-dodecane diisocyanate, Diisocyanate, cyclohexane-1,3-diisocyanate, cyclohexane-1,4-diisocyanate, 1-isocyanato-3,3,5-trimethyl-5-isocyanatomethyl- Cyclohexane, 2,4-hexahydrotoluene diisocyanate, 2,6-hexahydrotoluene diisocyanate, hexahydro-1,3-phenylene diisocyanate, hexahydro-1,4-phenylene diisocyanate , Perhydro-2,4'-diphenylmethane diisocyanate, perhydro-4,4'-diphenylmethane diisocyanate, 1,3-phenylene diisocyanate, 1,4-phenylene diisocyanate, 1,4 Diol diisocyanate (DDI), 4,4'-stilbene diisocyanate, 3,3'-dimethyl-4,4'-biphenylene diisocyanate (TODI), toluene 2,4-diisocyanate, Diisocyanate (TDI), diphenylmethane-2,4'-diisocyanate (MDI), 2,2'-diphenylmethane diisocyanate (MDI), diphenylmethane-4,4'-diisocyanate And naphthylene-1,5-isocyanate (NDI), 2,2-methylenediphenyl diisocyanate, 5,7-diisocyanatonaphthalene-1,4-dione, isophorone diisocyanate, m- 3,3-dimethoxy-4,4-biphenylene diisocyanate, 3,3-dimethoxybenzidine-4,4-diisocyanate, toluene 2,4-diisocyanate, (Ethylene glycol), triphenylmethane triisocyanate, diphenylmethane triisocyanate, butane-1,2,2-triisocyanate, trimethylolpropane tolylene di (propylene glycol), and toluene 2,4-diisocyanate end- Isocyanurate having a large number of hexamethylene diisocyanates, iminooxadiazine having a large number of hexamethylene diisocyanates, polymethylene polyphenyl isocyanate, and a mixture thereof, as well as isocyanurate trimers, 2,4,4-diphenyl ether triisocyanates, And the like.

The pyrimidine-based compound has an amine group (-NH ₂ ) which reacts with an isocyanate compound to form a urethane group (-NHCOO-) at the 2-position, a hydroxyl group (-OH) (C = O) at the 4-position, and the pyrimidine-based compound has at least one of an aliphatic, alicyclic, araliphatic, aromatic and heterocyclic functional group at positions 5 and 6 The pyrimidine-based compound is preferably a 2-amino-6-methyl-1H-pyrido [2,3-d] pyrimidin- d] pyridin-4 (3H) -one, 2-amino-4-hydroxy-5-pyrimidinecarboxylic acid ethyl ester, 2- Hydroxy-6-methylpyrimidine, 2-amino-5,6-dimethyl-4-hydroxypyrimidine, and mixtures thereof.

Wherein the metal element comprises at least one element selected from the group consisting of silicon (Si), copper (Cu), nickel (Ni), cobalt (Co), iron (Fe) Wherein the nano-carbon is selected from the group consisting of Ag, Cr, W, Pt, Pd and alloys thereof. The nano-carbon is selected from the group consisting of carbon nanotubes, graphite, It is preferably selected from the group consisting of graphene, carbon fiber, active carbon, carbon black and mixtures thereof.

The above object can also be achieved by mixing an isocyanate compound and a pyrimidine compound with a composite particle of a metal particle / nano-carbon / core / shell structure having metal particles as cores and nanocarbons as shells Wherein a conductive dispersion having a high-order structural composition through multiple hydrogen bonds is formed, wherein the nitrogen element content is at least 1 wt% based on the total weight of the high-order structural composition, and the conductive dispersion composition comprising the metal particles and the nano- .

The metal particles may be at least one selected from the group consisting of Si, Cu, Ni, Co, Fe, Ag, Cr, ), Palladium (Pd), and alloys thereof. The nano-carbon is selected from the group consisting of carbon nano tube, graphite, graphene, carbon fiber, active carbon carbon, carbon black, and mixtures thereof.

The isocyanate compound is a compound having a plurality of isocyanate groups and is represented by the formula R1 (NCO) n, n is an integer of 2 to 4, R1 is an aliphatic, alicyclic, araliphatic, It is preferably at least one of a heterocyclic functional group.

The pyrimidine-based compound has an amine group (-NH ₂ ) which reacts with an isocyanate compound to form a urethane group (-NHCOO-) at the 2-position, a hydroxyl group (-OH) (C = O) at the 4-position, and the pyrimidine-based compound has at least one of an aliphatic, alicyclic, araliphatic, aromatic and heterocyclic functional group at positions 5 and 6 desirable.

According to the structure of the present invention described above, by introducing a functional group capable of forming multiple hydrogen bonds in the nano-carbon, an effect of facilitating dispersion among materials can be obtained without using a dispersant.

Also, the conductivity can be increased by applying the composite particles including the metal particles having high conductivity and the nanocarbon, and the conductivity can be prevented from being reduced through the dispersant without using the dispersant.

1 is a flowchart of a method for producing a conductive dispersion composition comprising metal particles and nano-carbon according to an embodiment of the present invention,
FIG. 2 is a schematic view showing a process of synthesizing multiple hydrogen bonds on the surface of nano-carbon,
Figure 3 is a photograph showing a conductive dispersion composition,
FIG. 4 is a transmission electron micrograph of the graphene-coated nickel particles according to Example 2,
5 is a graph comparing the resistances of the nickel particles and the composite particles according to Example 2. Fig.

Hereinafter, a conductive dispersion composition including metal particles and nano-carbon according to an embodiment of the present invention and a method of manufacturing the same will be described in detail with reference to the drawings.

As a method of preparing the conductive dispersion composition, first, composite particles coated with nano-carbon on the surface of metal particles are prepared (S1).

In order to coat the nanocarbon on the surface of the metal particles, metal particles are first prepared. The metal particles include silicon, copper, nickel, cobalt, iron, silver, , Chromium (Cr), tungsten (W), platinum (Pt), palladium (Pd), and alloys thereof. When the metal particles are continuously exposed in the air, the surface is oxidized and the conductivity is decreased. Therefore, the nano-carbon layer is formed by coating the surface of the metal particles with nano-carbon so that the metal particles do not contact with oxygen. The composite particles having the nanocarbon layer formed on the surface of the metal particles are thus prepared.

In the case of nanocarbon coated on the surface of metal particles, carbon nanotubes, graphite, graphene, carbon fiber, active carbon, carbon black, And mixtures thereof. In addition to these, nano-carbon is not limited and can be used.

As a method of coating nanocarbon on the surface of such metal particles, methods such as ultrasonic irradiation, hydrothermal reaction and the like can be used. Since this method is a general method, detailed description is omitted. The composite particles thus formed are composite particles having a metal particle / nano-carbon / core / shell structure in which metal particles are used as a core and nano-carbon is used as a shell.

The composite particle of the metal particle / nano-carbon / core / shell structure is surface-modified (S2).

Surface modification of nano-carbon surfaces to allow multi-hydrogen bonding to nanocarbons coated on the surface of composite particles. The surface modification is carried out such that a hydroxyl group (-OH) or a carboxyl group (-COOH) is introduced onto the surface of the nano-carbon. A different method is used depending on the kind of the nano-carbon of the surface modification method. In general, it is preferable to introduce a hydroxyl group or a carboxyl group on the surface of the nano-carbon through mixing with the acid and stirring the mixture. The acid is selected from the group consisting of hydrochloric acid (HCl), sulfuric acid (H ₂ SO ₄ ), nitric acid (HNO ₃ ), phosphoric acid (H ₃ PO ₄ ), hydrogen peroxide (H ₂ O ₂ ) But is not limited thereto.

A composite particle dispersion composition comprising a higher-order structural composition is formed through multi-hydrogen bonding reaction on the surface-modified composite particles (S3).

An isocyanate-based compound and a pyrimidine-based compound are mixed and reacted with the nano-carbon surface-modified composite particles to form a composite particle dispersion composition, which is obtained through multiple hydrogen bonding in a composite particle dispersion A higher order structural composition is formed. As a method of forming the composite particle dispersion, the composite particles are dispersed in a solvent, mixed with an isocyanate compound, and heated and stirred to introduce an isocyanate group into the surface of the composite particle. The pyrimidine compound is added thereto, and the mixture is heated and stirred to conduct multiple hydrogen bonding to form a composite particle dispersion composition. A high-order structural composition is present in the resulting composite particle dispersion composition through multiple hydrogen bonds. FIG. 2 shows a process for synthesizing a nano-carbon having quadruple hydrogen bonding, wherein a nano-carbon having a carboxyl group reacts with an isocyanate-based compound and reacts with the pyrimidine-based compound to form a high- do. The higher order structural composition means a composition comprising multiparticulates and multiple hydrogen bonds, and the composite particle dispersion composition means a state in which the higher order structural composition is mixed with a solvent.

The process of multiple hydrogen bonding is composed of a hydrogen donor, a hydrogen acceptor, and an ionic hydrogen bond acceptor, wherein the arrangement of D, D +, and A is tritium AADD-DDAA-ADDA-DAAD, AAAD-DDDA, and ADAA-DDD + are one of the structures having a pair of ADA-DAD, ADD-DAA, AAA- DDD and cationic AAA- -DADD, AAAA-DDDD, and cationic AAAA-DDDD + structures, it is preferable to introduce at least one functional group.

As the isocyanate compound in the functional group capable of multiple hydrogen bonding in this way, a compound having a plurality of isocyanate groups is used and can be represented by R1 (NCO) n. Wherein n is an integer from 2 to 4, and R1 can be at least one of an aliphatic, alicyclic, araliphatic, aromatic, and heterocyclic functional group. Preferred isocyanate compounds include ethylene diisocyanate, 1,4-tetramethylene diisocyanate, 1,6-hexamethylene diisocyanate (HDI), 1,12-dodecane diisocyanate, cyclobutane-1,3-diisocyanate, Cyclohexane-1,3-diisocyanate, cyclohexane-1,4-diisocyanate, 1-isocyanato-3,3,5-trimethyl-5-isocyanatomethyl- Hexahydrotoluene diisocyanate, 2,6-hexahydrotoluene diisocyanate, hexahydro-1,3-phenylene diisocyanate, hexahydro-1,4-phenylene diisocyanate, perhydro-2,4'-di 1,4-phenylene diisocyanate, 1,4-dodecyl diisocyanate (DDI), 4, 4-phenylenediisocyanate, perhydro-4,4'-diphenylmethane diisocyanate, 4'-stilbene diisocyanate, 3,3'-dimethyl-4,4'-biphenyl Diisocyanate (TODI), toluene 2,4-diisocyanate, toluene 2,6-diisocyanate (TDI), diphenylmethane-2,4'-diisocyanate (MDI), 2,2'-diphenylmethane diisocyanate (MDI), diphenylmethane-4,4'-diisocyanate (MDI), and naphthylene-1,5-isocyanate (NDI), 2,2'-methylene diphenyl diisocyanate, 5,7-diisocyanatonaphthalene 1,4-dione, isophorone diisocyanate, m-xylene diisocyanate, 3,3'-dimethoxy-4,4'-biphenylene diisocyanate, 3,3'-dimethoxybenzidine- (Ethylene glycol), triphenylmethane triisocyanate, diphenylmethane triisocyanate, butane-2,4-diisocyanate, polyisocyanate, diphenylmethane diisocyanate, diphenylmethane diisocyanate, 1,2,2'-triisocyanate, trimethylolpropane tolylenediisocyanate Diphenyl ether triisocyanate, isocyanurate having a plurality of hexamethylene diisocyanates, iminooxadiazine having a large number of hexamethylene diisocyanates, polymethylene polyphenyl isocyanate, and mixtures thereof ≪ / RTI >

A pyrimidine-based compound which reacts with an isocyanate compound to form a multiple hydrogen bond has an amine group (-NH ₂ ) which forms a urethane group (-NHCOO-) at the 2-position and a hydroxyl group -OH) or a ketone group (-C = O) at the 4-position is used, but it is not limited thereto. The pyrimidine compound may have at least one of an aliphatic, alicyclic, araliphatic, aromatic and heterocyclic functional group at positions 5 and 6. Such pyrimidine-based compounds can be prepared by reacting 2-amino-6-methyl-1H-pyrido [2,3-d] pyrimidin- Amino-4-hydroxy-5-pyrimidinecarboxylic acid ethyl ester, 2-amino-6-ethyl-4-hydroxypyrimidine, 2- Methylpyrimidine, 2-amino-5,6-dimethyl-4-hydroxypyrimidine, and mixtures thereof.

It is preferable that the nitrogen element is contained in an amount of 1% by weight or more based on the total weight of the high-order structural composition contained in the composite particle dispersion composition thus obtained. In the case of a nitrogen element, it is an element existing from an isocyanate-based compound and a pyrimidine-based compound. When the nitrogen element is less than 1% by weight based on the total weight of the high-order structural composition, it means that the hydrogen bond is small. Therefore, it is preferable that the nitrogen element is contained in an amount of 1 wt% or more in order to form a tritium hydrogen bonding or a quadruple hydrogen bonding as in the present invention.

Hereinafter, embodiments of the present invention will be described in more detail.

≪ Example 1 >

(Si) composite particles coated on the outer surface with a nano-carbon layer were prepared, and the composite particles were mixed with hydrogen peroxide (H ₂ O ₂ ) and treated at 50 to 100 ° C for 12 hours to form a hydroxy group Lt; / RTI > The mixture is dispersed in a dimethylformamide solvent at a concentration of 100 mg / L, and then toluene diisocyanate is mixed and stirred at 100 ° C for 12 hours to introduce an isocyanate group. Then, 2-amino-4-hydroxy-6-methyl-pyrimidine was mixed with the isocyanate group-introduced composite particles, and the mixture was stirred at 100 ° C for 20 hours, High order structure compounds were formed by introducing a higher-order structural functional group having a nitrogen-rich 2-ureido-4 [1H] pyrimidinone structure. After the introduction of the functional groups, the particles were separated by centrifugation and dispersed in an aqueous solution. As a result, a uniformly dispersed paste was obtained as shown in FIG.

≪ Example 2 >

A 5 g nickel (Ni) particle powder from which a surface oxide film had been removed was added to 500 ml of xylene, and graphene was synthesized on the surface of the nickel particles by ultrasonic method to form a graphene layer of a nickel / graphene-core / Nickel particles are produced. 4 shows a transmission electron microscope image of a nickel composite particle coated with a graphene layer. This was mixed with hydrogen peroxide in the same manner as in Example 1 to introduce a hydroxy group into the surface of the graphene and dispersed in a solvent of dimethylformamide at a concentration of 100 mg / L. Then, toluene diisocyanate was mixed at 100 ° C For 12 hours to introduce an isocyanate group. Then, 2-amino-4-hydroxy-6-methyl-pyrimidine was mixed with the isocyanate group-introduced composite particles, and the mixture was stirred at 100 ° C for 20 hours, (2-ureido-4 [1H] pyrimidinone) structure, which is rich in nitrogen content, was introduced in such a manner as to proceed with the reaction.

The conductive paste was prepared by dispersing the nickel / graphene-core / shell high-order structure composition having high-order structure functional groups in dimethylformamide and then coated on the substrate to form an electrode, followed by sintering through photopolymerization. 5 is a graph showing the resistance change at a relative humidity of 80% and a temperature of 80 캜. As a result of forming an electrode through a conductive paste having a uniform dispersion of the high-order structural composition introduced therein and photo-baking, no change in electrical resistance at high temperature and high humidity was observed by the graphene layer. On the other hand, in the case of nickel particles not having graphene coating and having no uniform dispersibility, it was confirmed that resistance increases with time due to high humidity and temperature. This means that the graphene protects the nickel particles to prevent oxidation of the nickel and at the same time does not prevent the introduction of the higher order structural functional groups to prevent the oxidation of the nickel by the graphene protection layer.

The composite particles having a higher order structure formed by the multiple hydrogen bonding can be formed in the form of a dispersion in an aqueous solution or an organic solvent at a concentration of 0.01 g / L or more without adding any additional dispersant. That is, since a separate dispersant is not added, the problem of decreasing the conductivity due to the dispersant is solved, and thereby the cost reduction and the simplification of the process can be obtained when the conductive coating liquid or paste is manufactured. In addition, since a dispersing agent is not required, there is an advantage that it is possible to combine various binder materials and metals and metal oxides. Particularly, in the case of the present invention, because of the high-order structure of the composite particles including the metal particles, it is advantageous to obtain higher conductivity than the high-order structure composed of the nano carbon material by the metal particles.

Claims (20)

A method for preparing a conductive dispersion composition comprising metal particles and nano-carbon,
Preparing composite particles of a metal particle / nano-carbon / core / shell structure coated with nanocarbon on the surface of metal particles;
Surface-modifying the composite particle;
A step of mixing the isocyanate compound and the pyrimidine compound to the surface-modified composite particle to form a high-order structural composition through a multiple hydrogen bonding reaction, and then conducting the preparation of a conductive dispersion composition comprising the metal particle and the nano- Way. The method according to claim 1,
The step of surface-modifying the composite particles comprises:
Wherein the surface of the nano-carbon is surface-modified to have a hydroxyl group (-OH) or a carboxyl group (-COOH). 3. The method of claim 2,
The hydroxyl group or the carboxyl group is formed by mixing with an acid and stirring the acid, and the acid is reacted with an acid such as hydrochloric acid (HCl), sulfuric acid (H ₂ SO ₄ ), nitric acid (HNO ₃ ), phosphoric acid (H ₃ PO ₄ ) H ₂ O ₂ ), and a mixture thereof. The method of producing a conductive dispersion composition according to claim 1, wherein the metal particles and the nano-carbon are mixed. The method according to claim 1,
Wherein the multiple hydrogen bonding reaction is a reaction between a hydrogen donor (D) donor, an acceptor (A), or an ionic hydrogen bonder (D +). ≪ / RTI > 5. The method of claim 4,
Wherein the arrangement of the tritium bonds in the multiple hydrogen bonding reaction is one of a structure consisting of ADA-DAD, ADD-DAA, AAA-DDD, and cationic AAA-DDD + ≪ / RTI > 5. The method of claim 4,
The quadrivalent hydrogen bonding sequence in the multiple hydrogen bonding reaction may be any of the structures consisting of pairs of ADAD-DADA-AADD-DDAA-ADDA-DAAD, AAAD-DDDA, ADAA-DADD, AAAA- DDDD, and cationic AAAA- And the metal particles and the nano-carbon. The method according to claim 1,
The isocyanate compound is a compound having a plurality of isocyanate groups and is represented by the formula R1 (NCO) n, wherein n is an integer of 2 to 4, R1 is an aliphatic, alicyclic, araliphatic, aromatic, Type functional group, and the nano-carbon. The method according to claim 1,
The isocyanate compound may be at least one selected from the group consisting of ethylene diisocyanate, 1,4-tetramethylene diisocyanate, 1,6-hexamethylene diisocyanate (HDI), 1,12-dodecane diisocyanate, cyclobutane- Cyclohexane-1,3-diisocyanate, cyclohexane-1,4-diisocyanate, 1-isocyanato-3,3,5-trimethyl-5-isocyanatomethyl- Hexahydrotoluene diisocyanate, 2,6-hexahydrotoluene diisocyanate, hexahydro-1,3-phenylene diisocyanate, hexahydro-1,4-phenylene diisocyanate, perhydro-2,4'-di 1,4-phenylene diisocyanate, 1,4-dodecyl diisocyanate (DDI), 4, 4-phenylenediisocyanate, perhydro-4,4'-diphenylmethane diisocyanate, 4'-stilbene diisocyanate, 3,3'-dimethyl-4,4'-biphenylene di Toluene 2,4-diisocyanate, toluene 2,6-diisocyanate (TDI), diphenylmethane-2,4'-diisocyanate (MDI), 2,2'-diphenylmethane diisocyanate (MDI), diphenylmethane-4,4'-diisocyanate (MDI), and naphthylene-1,5-isocyanate (NDI), 2,2-methylenediphenyl diisocyanate, 5,7-diisocyanatonaphthalene- 1,4-dione, isophorone diisocyanate, m-xylene diisocyanate, 3,3-dimethoxy-4,4-biphenylene diisocyanate, 3,3-dimethoxybenzidine-4,4-diisocyanate, (Ethylene glycol), triphenylmethane triisocyanate, diphenylmethane triisocyanate, butane-1,2,2 (2,4-diisocyanate), 2,4-diisocyanate, - triisocyanate, trimethylolpropane tolylene diisocyanate trimmer, 2,4,4- Isocyanurate having a number of hexamethylene diisocyanates, iminooxadiazine having a number of hexamethylene diisocyanates, polymethylene polyphenyl isocyanate, and mixtures thereof. The metal is selected from the group consisting of A method of making a conductive dispersion composition comprising particles and nano-carbon. The method according to claim 1,
The pyrimidine-based compound has an amine group (-NH ₂ ) which reacts with an isocyanate compound to form a urethane group (-NHCOO-) at the 2-position, a hydroxyl group (-OH) A method for preparing a conductive dispersion composition comprising metal particles and a nano-carbon having a ketone group (-C = O) at the 4-position. The method according to claim 1,
Wherein the pyrimidine-based compound has at least one of an aliphatic, alicyclic, araliphatic, aromatic and heterocyclic functional group at positions 5 and 6, and a method for producing a conductive dispersion composition comprising the metal particle and the nano- . The method according to claim 1,
The pyrimidine-based compound can be obtained by reacting 2-amino-6-methyl-1H-pyrido [2,3-d] pyrimidin- Amino-4-hydroxy-5-pyrimidinecarboxylic acid ethyl ester, 2-amino-6-ethyl-4-hydroxypyrimidine, 2- Amino-5,6-dimethyl-4-hydroxypyrimidine, and mixtures thereof. The method of preparing a conductive dispersion composition comprising the metal particles and the nano-carbon . The method according to claim 1,
Wherein the nitrogen element is contained in an amount of 1 wt% or more based on the total weight of the high-order structural composition. The method according to claim 1,
The metal particles may be at least one selected from the group consisting of Si, Cu, Ni, Co, Fe, Ag, Cr, W, Palladium (Pd), and alloys comprising the same. ≪ Desc / Clms Page number 24 > The method according to claim 1,
The nano-carbon may be a carbon nanotube, a graphite, a graphene, a carbon fiber, an active carbon, a carbon black, and a mixture thereof. ≪ / RTI > wherein the metal particles and nano-carbon are selected from the group consisting of metal particles and nano-carbon. In a conductive dispersion composition comprising metal particles and nano-carbon,
The isocyanate-based compound and the pyrimidine-based compound are mixed with the composite particles of the metal particle / nano-carbon / core / shell structure having the metal particles as the core and the nano-carbon as the shell, A conductive dispersion composition comprising metal particles and nano-carbons, wherein a conductive dispersion having a higher order structural composition is formed, wherein the nitrogen element content is at least 1 wt% based on the total weight of the higher order structural composition. 16. The method of claim 15,
The metal particles may be at least one selected from the group consisting of Si, Cu, Ni, Co, Fe, Ag, Cr, W, Palladium (Pd) and alloys containing the same. ≪ Desc / Clms Page number 24 > 16. The method of claim 15,
The nano-carbon may be a carbon nanotube, a graphite, a graphene, a carbon fiber, an active carbon, a carbon black, and a mixture thereof. ≪ / RTI > wherein the metal particles and the nano-carbon are selected from the group consisting of metal nanoparticles and nanocarbons. 16. The method of claim 15,
The isocyanate compound is a compound having a plurality of isocyanate groups and is represented by the formula R1 (NCO) n, wherein n is an integer of 2 to 4, R1 is an aliphatic, alicyclic, araliphatic, aromatic, Type functional group, and a nano-carbon. 16. The method of claim 15,
The pyrimidine-based compound has an amine group (-NH ₂ ) which reacts with an isocyanate compound to form a urethane group (-NHCOO-) at the 2-position, a hydroxyl group (-OH) A conductive dispersion composition comprising metal particles and a nano-carbon, characterized in that it has a ketone group (-C = O) in position 4. 16. The method of claim 15,
Wherein the pyrimidine-based compound has at least one of an aliphatic, alicyclic, araliphatic, aromatic and heterocyclic functional group at positions 5 and 6, and the metal particle and the nano-carbon.

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