WO2014051295A1 - 방열 도료 조성물 및 방열 구조체 - Google Patents
방열 도료 조성물 및 방열 구조체 Download PDFInfo
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- WO2014051295A1 WO2014051295A1 PCT/KR2013/008491 KR2013008491W WO2014051295A1 WO 2014051295 A1 WO2014051295 A1 WO 2014051295A1 KR 2013008491 W KR2013008491 W KR 2013008491W WO 2014051295 A1 WO2014051295 A1 WO 2014051295A1
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- Prior art keywords
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- heat dissipation
- carbon
- solvent
- coating composition
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Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/08—Materials not undergoing a change of physical state when used
- C09K5/10—Liquid materials
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/17—Amines; Quaternary ammonium compounds
Definitions
- the present invention relates to a heat dissipation coating composition and a heat dissipation structure. More specifically, the present invention relates to a heat dissipation coating composition and a heat dissipation structure that enable formation of a heat dissipation layer having excellent salt water resistance, film strength, adhesion or scratch resistance, etc., with excellent heat dissipation in various products.
- the LED device is a semiconductor device that is very sensitive to temperature, and there is a concern that serious problems such as lifespan and malfunction due to temperature rise during driving are seriously generated. For this reason, it is further required to suppress the rise of the temperature of the LED headlamp or the like to prolong the life and to suppress the malfunction.
- the present invention is to provide a heat dissipation coating composition that enables the formation of a heat dissipation layer having excellent heat dissipation resistance and excellent salt water resistance, film strength, adhesion or scratch resistance to various products such as LED headlamps.
- the present invention also provides a heat dissipation structure such as a heat dissipation layer formed from the heat dissipation coating composition and having excellent heat dissipation, and having excellent salt water resistance, film strength, adhesion, scratch resistance, and the like.
- the present invention is an epoxy resin; Curing agent; A carbon-based filler to which a functional group including at least one selected from the group consisting of an amine group, an amide group, a carboxyl group and a hydroxy group is bound; And it provides a heat dissipation coating composition comprising a solvent.
- the present invention also provides a cured product of an epoxy resin in which the epoxy group is ring-opened to form a crosslinked structure; And a carbon-based filler to which a functional group including at least one selected from the group consisting of an amine group, an amide group, a carboxyl group, and a hydroxy group is bonded.
- a heat dissipation paint composition and a heat dissipation structure according to an embodiment of the present invention will be described.
- epoxy resin comprising: Curing agent; A carbon-based filler having a functional group including at least one selected from the group consisting of an amine group, an amide group, a carboxyl group and a hydroxy group; And a heat dissipation coating composition comprising a solvent.
- Such a heat-dissipating coating composition includes, for example, a carbon-based filler having a surface-bonded specific functional group capable of hydrogen bonding together with an epoxy resin having at least one epoxy group and a curing agent.
- a heat dissipation paint When the composition is applied around a product requiring heat dissipation, such as an LED headlamp, and the curing proceeds, the epoxy groups in the epoxy resin are ring-opened as shown in Banung Formula 1 below to form crosslinked structures between the epoxy groups by interaction with the curing agent. Accordingly, a heat radiation structure such as a cured product of the epoxy resin and a heat radiation layer including the same may be formed:
- the carbon-based filler having the specific functional group surface-bonded can be uniformly dispersed.
- the specific functional group of the carbon-based filler and the epoxy group-derived oxygen forming the crosslinked structure It is expected that hydrogen bonds can be formed.
- the schematic chemical structure of the bond form that forms the hydrogen bond is shown in Reaction Equation 2 below:
- the carbon-based filler may exhibit better compatibility with the epoxy resin and its cured product.
- the carbon-based filler may be more uniformly dispersed in the heat dissipation structure, thereby exhibiting a better and more uniform effect.
- the heat dissipation structure obtained from the heat dissipation coating composition of the embodiment may exhibit excellent effects due to the carbon-based filler, which is the heat conductive and heat dissipating material, and thus may exhibit excellent heat dissipation characteristics. Due to the excellent miscibility between the carbon-based fillers, it can exhibit improved overall physical properties such as excellent saline resistance, film strength, substrate adhesion, scratch resistance and hardness.
- the heat dissipation coating composition of one embodiment it is possible to effectively release the heat generated therefrom without suppressing the temperature rise without forming a mechanical heat dissipation structure such as a fan around the LED headlamp, as a result, the LED The life of the headlamp can be further improved.
- the heat dissipation coating composition of one embodiment of the present invention such as pumps, evaporators, engines, heaters, boiler piping, communication equipment, motors, batteries, housing material electrode materials, semiconductors, game machines, displays such as OLED devices, mobile phones, home appliances, automobiles , Construction, medical equipment, ships, airplanes, aerospace, It is possible to form a heat radiation structure such as a heat radiation layer exhibiting excellent heat dissipation characteristics and other physical properties around military facilities and equipment or heat exchangers.
- various curing agent components capable of curing the epoxy resin may be used, and for example, an imidazole-based curing agent may be used.
- the carbon-based filler is any carbon-based filler known to exhibit heat dissipation and thermal conductivity, for example, single-walled carbon nano-leave, double-walled carbon nano-leave, multi-walled carbon nanotubes, graphene Or pentene graphene oxide, graphene nanoplates, graphite, carbon black or carbon-metal composites.
- the functional group bonded to the carbon-based filler may be any functional group including an amine group, an amide group, a carboxyl group, or a hydroxyl group in the structure, and such functional group is directly bonded to the surface of the carbon-based filler, It may be couple
- Carbon-based fillers bonded to these functional groups may have a chemical structure represented by the following formula (1):
- R 2 is the same as or different from each other, and a single bond or a C 1-20 Alkylene,
- R 3 is the same as or different from each other, and is hydrogen or alkyl having 1 to 20 carbon atoms ,
- the heat dissipation structure formed from the heat dissipation paint composition of the embodiment shows more excellent heat dissipation characteristics and miscibility, and the physical properties thereof can be further improved.
- any solvent that enables proper dissolution of each component can be used as the solvent, for example, an aqueous solvent such as water, an alcohol solvent, a ketone solvent, an amine solvent At least one selected from the group consisting of a solvent, an amine solvent, an ester solvent, an amide solvent, a halogenated hydrocarbon solvent, an ether solvent, and a furan solvent may be used.
- an aqueous solvent such as water, an alcohol solvent, a ketone solvent, an amine solvent
- At least one selected from the group consisting of a solvent, an amine solvent, an ester solvent, an amide solvent, a halogenated hydrocarbon solvent, an ether solvent, and a furan solvent may be used.
- composition of one embodiment in addition to each component described above, one kind selected from the group consisting of conventional additives such as dispersants, leveling agents, dispersion stabilizers, pH adjusting agents, sedimentation inhibitors, surfactants, wetting agents and thickeners. It may further include the above additives.
- conventional additives such as dispersants, leveling agents, dispersion stabilizers, pH adjusting agents, sedimentation inhibitors, surfactants, wetting agents and thickeners. It may further include the above additives.
- any dispersant known to be usable in a coating composition or resin composition including a carbon-based filler or the like may be used without any particular limitation.
- Representative examples of such a dispersant include a modified acrylate dispersant; Modified polyurethane acrylic copolymer dispersants; Polyacetal dispersants; Acrylic acid, methyl methacrylate, Acrylic dispersants such as alkyl (C1-C10) acrylate, vinyl acrylate, or 2-ethylnuclear acrylate; Polycarbonate dispersants; Styrene-based dispersants such as styrene or alphamethylstyrene; Polyester-based dispersants; Polyphenylene ether-based dispersants; Polyolefin dispersants; Acrylonitrile-butadiene-styrene copolymer dispersants; Polyarylate-based dispersants; Polyamide-based dispersants; Polyamideimide-based dispersants; Polyarylsulf
- additives known as product name BYK series and the like may be representatively used, and various other leveling agents may be used.
- the dispersion stabilizer an anionic surfactant, a cationic surfactant, a nonionic surfactant, a wetting agent, or a wettability improving agent may be used, and the dispersibility of carbon-based fillers in other resin compositions or coating compositions may be stabilized. Any additive known to be present can be used. Each of these additives may be any known or commercially available in the art.
- composition of one embodiment described above can be applied to any substrate such as a metal substrate, such as Al heat sink, plastic substrate or fiber substrate with high adhesion, and not only to the elements such as the LED headlamp described above, but also the pump, evaporator, engine Heaters, boiler piping, communication equipment, motors, batteries, housing materials, electrode materials, semiconductors, game machines, OLED devices, displays, mobile phones, home appliances, automobiles, construction, medical devices, ships, airplanes, aerospace equipment, military facilities, Excellent heat dissipation around equipment or heat exchanger, etc. It can be applied to form a heat radiation structure such as.
- a heat dissipation structure formed from the heat dissipation coating composition described above.
- a heat radiation structure is a cured product of an epoxy resin in which an epoxy group is ring-opened to form a crosslinked structure; And a carbon-based filler to which a functional group including at least one selected from the group consisting of an amine group, an amide group, a carboxyl group, and a hydroxy group is bonded.
- the carbon-based filler may be uniformly dispersed in the cured product of the epoxy resin, and in particular, due to excellent miscibility with the cured product with the epoxy resin, it may be more uniformly dispersed to exhibit excellent properties.
- the heat dissipation structure may exhibit not only excellent heat dissipation characteristics but also improved overall physical properties such as excellent saline resistance, film strength, substrate adhesion, scratch resistance, and hardness due to excellent compatibility.
- Such excellent properties can be expected because the functional groups bonded to the carbon-based filler interact with each other through the epoxy group-derived oxygen and hydrogen bond in the cured product of the epoxy resin.
- the heat dissipation structure is not only used for the above-described devices such as LED headlamps, but also for displays such as pumps, evaporators, engines, heaters, boiler piping, communication equipment, motors, batteries, housing materials, electrode materials, semiconductors, game machines, OLED devices, and the like. It can be applied to various products such as mobile phones, home appliances, automobiles, construction, medical devices, ships, airplanes, aerospace equipment, military facilities and equipment or heat exchangers, and can exhibit excellent heat dissipation characteristics and other physical properties. It may have a form such as a heat radiation layer formed from the coating composition of one embodiment.
- a heat-dissipating coating composition which provides a heat-dissipating structure exhibiting excellent physical properties such as excellent salt water resistance, film strength, substrate adhesion, scratch resistance and hardness, together with excellent heat dissipation characteristics. do.
- the LED headlamp Without forming a heat dissipation structure such as a fan around, the heat generated therefrom can be effectively released to suppress the temperature rise, and as a result, the life of the LED headlamp can be further improved.
- the heat-dissipating coating composition of the present invention is a pump, evaporator, engine, heater, boiler piping, communication equipment, motors, battery housing materials, electrode materials, semiconductors, game machines, displays such as OLED devices, mobile phones, home appliances, automobiles, It enables the formation of heat-dissipating structures such as heat-dissipating layers that exhibit excellent heat dissipation characteristics and other physical properties around construction, medical devices, ships, airplanes, aerospace equipment, military facilities and equipment, or heat exchangers.
- FIG. 1 is a view schematically showing a method and apparatus configuration for measuring heat dissipation characteristics in an embodiment.
- Figure 2 is a graph showing the heat dissipation characteristics of the AI plate coated with the heat dissipation coating composition of Examples 1 and 2 and the AI plate of Comparative Example 1 not coated.
- FIG. 3 is a view showing a poor coating state when coated with a heat dissipating coating composition of Comparative Example 2.
- Example 4 is a view showing the surface characteristics and the salt water resistance evaluation results of the coating film, respectively, when coating the heat-dissipating coating composition of Example 1, Example 2 and Comparative Example 2.
- FIG. 6 is a view schematically showing a heat sink structure (applicable to various fin thicknesses and pitches) when the heat dissipation performance is confirmed in various heat sink structures using the heat dissipation paint composition of Example 2.
- FIG. 6 is a view schematically showing a heat sink structure (applicable to various fin thicknesses and pitches) when the heat dissipation performance is confirmed in various heat sink structures using the heat dissipation paint composition of Example 2.
- FIG. 7 is a graph illustrating the heat radiation performance evaluation result of FIG. 6.
- the preheated mixture was surface treated by injection into a surface treatment reactor at a temperature of 350 ° C. and a subcritical water of 230 atm to 250 atm.
- ammonia water was injected under high pressure at a flow rate of 0.20 g / min at a pressure of 230 to 250 atm and a temperature of 300 to 350 ° C. at a 4/5 point relative to the inlet of the surface treatment reaction.
- the surface-treated product was again cooled to 200 ° C. first, and then cooled down to a temperature of about 25 ° C., thereby obtaining 9.8 g of product which was continuously surface-treated.
- the heat-dissipating coating composition of Preparation Example 3 was used as the composition of Example 1 and spray-coated to an untreated aluminum specimen having a thickness of horizontal * vertical * thickness 70 * 70 * 1 to a thickness of 10um. Curing conditions were carried out in an oven at 130 ° C, 30 minutes.
- thermocouple was attached to the LED PCB for temperature measurements. Watts entered 20W and observed changes in silver.
- the dispersion was prepared in the same manner as in Preparation Example 2, but 90 g of the modified polyurethane-based dispersant was added instead of the modified polyacrylate-based dispersant as a dispersing aid, and the heat-dissipating coating composition of Example 2 was prepared in the same manner as in Preparation Example 3.
- the temperature change was measured in the same manner as in Example 1 from the prepared heat-dissipating coating composition of Comparative Example 2 to evaluate the heat-dissipating effect of the heat-dissipating coating composition.
- Example 3 For the heat dissipation coating composition of Comparative Example 3, the temperature change was measured in the same manner as in Example 1 to evaluate the heat dissipation effect of the heat dissipation coating composition. Graphs relating to heat dissipation characteristics measured in Examples 1 and 2 and Comparative Example 1 are as shown in FIG. 2. 2, it was confirmed that when the heat dissipation layer formed from the heat dissipation coating composition of the embodiment was added, excellent heat dissipation characteristics were expressed. However, in Comparative Example 2, the heat dissipation characteristics evaluation could not be performed because the coating film was poor and the nozzle was frequently clogged during spray coating. 3, this phenomenon can be confirmed.
- Adhesion According to ASTM D 3359, it is divided into 6 steps from 5B, which is excellent in adhesion, to 0B, which is poor in adhesion. Display.
- Salt water resistance According to ASTM standards, the degree of chlorination of the coating surface at a specific time is visually evaluated and judged (by visual evaluation with a photograph as shown in FIG. 4 to determine).
- Example 2 and Comparative Examples 3 and 4 in the specimen of the embodiment, it was confirmed that the excellent hardness, salt water resistance, adhesion and surface properties of the heat dissipation layer is implemented, and the dispersion stability of the paint is also excellent.
- the comparison of the heat dissipation characteristics measured in Example 2 and Comparative Examples 3 and 4 is as shown in Table 4 below.
- paint stability and surface properties, adhesion of the heat dissipation layer (JIS D0202; ⁇ M2.5), salt water resistance (240hr, about 30 ° C, 5% brine concentration; ASTM B117), pencil hardness and scratch resistance (ASTM D 3363-92a) and the like are also shown in Table 4 below, and FIG. 5 compares the coating film surface characteristics and the salt water resistance evaluation results of Example 2 with Comparative Examples 3 and 4.
- Example 2 and Comparative Examples 3 and 4 showed a similar heat dissipation effect, but only Example 2 was confirmed that the saline resistance.
- Example 2 was applied to various heat sink structures to check the heat dissipation performance. More specifically, in the heat sink structure shown in Figure 6, the heat dissipation performance was confirmed by varying the thickness and pitch of the fins, the results of the check and evaluation are summarized in Table 5 and FIG. Referring to Table 5 and Figure 7, when using the heat dissipation coating composition of the embodiment, excellent heat dissipation effect can be implemented in a variety of heat sink structure, the optimal design is the best heat dissipation effect at the thickness of the fin 1mm, pitch 6mm I could see it implemented. TABLE 5
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Abstract
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Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/431,604 US20150275061A1 (en) | 2012-09-28 | 2013-09-23 | Heat dissipation paint composition and heat dissipation structure |
JP2015534380A JP6039085B2 (ja) | 2012-09-28 | 2013-09-23 | 放熱塗料組成物および放熱構造体 |
EP13841604.5A EP2902459B1 (en) | 2012-09-28 | 2013-09-23 | Heat dissipation paint composition and heat dissipation structure |
CN201380058643.5A CN104769057A (zh) | 2012-09-28 | 2013-09-23 | 散热涂料组合物及散热结构 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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KR20120109475 | 2012-09-28 | ||
KR10-2012-0109475 | 2012-09-28 |
Publications (1)
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WO2014051295A1 true WO2014051295A1 (ko) | 2014-04-03 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/KR2013/008491 WO2014051295A1 (ko) | 2012-09-28 | 2013-09-23 | 방열 도료 조성물 및 방열 구조체 |
Country Status (6)
Country | Link |
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US (1) | US20150275061A1 (ko) |
EP (1) | EP2902459B1 (ko) |
JP (1) | JP6039085B2 (ko) |
KR (1) | KR101773589B1 (ko) |
CN (1) | CN104769057A (ko) |
WO (1) | WO2014051295A1 (ko) |
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US10587018B2 (en) * | 2015-05-26 | 2020-03-10 | Lg Chem, Ltd. | Battery module including heat radiation paint coating layer |
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Also Published As
Publication number | Publication date |
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EP2902459A4 (en) | 2016-05-25 |
EP2902459B1 (en) | 2019-07-10 |
KR20140043031A (ko) | 2014-04-08 |
EP2902459A1 (en) | 2015-08-05 |
KR101773589B1 (ko) | 2017-08-31 |
US20150275061A1 (en) | 2015-10-01 |
CN104769057A (zh) | 2015-07-08 |
JP2015537063A (ja) | 2015-12-24 |
JP6039085B2 (ja) | 2016-12-07 |
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