KR102516028B1 - High-voltage switchgear, low-voltage switchgear, motor control panel, and distribution board with thermal insulation functional powder coating applied - Google Patents
High-voltage switchgear, low-voltage switchgear, motor control panel, and distribution board with thermal insulation functional powder coating applied Download PDFInfo
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- 238000000576 coating method Methods 0.000 title claims abstract description 59
- 239000000843 powder Substances 0.000 title claims abstract description 58
- 239000011248 coating agent Substances 0.000 title claims abstract description 43
- 238000009413 insulation Methods 0.000 title claims abstract description 36
- 238000009826 distribution Methods 0.000 title claims description 5
- 239000000945 filler Substances 0.000 claims abstract description 27
- 229920005989 resin Polymers 0.000 claims abstract description 24
- 239000011347 resin Substances 0.000 claims abstract description 24
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims abstract description 19
- 239000003822 epoxy resin Substances 0.000 claims abstract description 13
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 13
- 239000010457 zeolite Substances 0.000 claims abstract description 13
- 229910021536 Zeolite Inorganic materials 0.000 claims abstract description 12
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229920000728 polyester Polymers 0.000 claims abstract description 12
- ISAOCJYIOMOJEB-UHFFFAOYSA-N benzoin Chemical compound C=1C=CC=CC=1C(O)C(=O)C1=CC=CC=C1 ISAOCJYIOMOJEB-UHFFFAOYSA-N 0.000 claims description 10
- 238000010248 power generation Methods 0.000 claims description 8
- 239000006057 Non-nutritive feed additive Substances 0.000 claims description 7
- 244000028419 Styrax benzoin Species 0.000 claims description 5
- 235000000126 Styrax benzoin Nutrition 0.000 claims description 5
- 235000008411 Sumatra benzointree Nutrition 0.000 claims description 5
- 229960002130 benzoin Drugs 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 235000019382 gum benzoic Nutrition 0.000 claims description 5
- 238000004146 energy storage Methods 0.000 claims description 4
- 239000003963 antioxidant agent Substances 0.000 claims description 2
- 230000003078 antioxidant effect Effects 0.000 claims 1
- 230000000052 comparative effect Effects 0.000 description 29
- 239000003973 paint Substances 0.000 description 20
- 238000011156 evaluation Methods 0.000 description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 11
- 239000007788 liquid Substances 0.000 description 9
- 239000000758 substrate Substances 0.000 description 8
- 238000002360 preparation method Methods 0.000 description 7
- 229910000838 Al alloy Inorganic materials 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 6
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- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
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- 229910010413 TiO 2 Inorganic materials 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical group C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 2
- 239000012767 functional filler Substances 0.000 description 2
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- 239000012855 volatile organic compound Substances 0.000 description 2
- 206010003645 Atopy Diseases 0.000 description 1
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- 229920006328 Styrofoam Polymers 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 229940106691 bisphenol a Drugs 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
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- GYZLOYUZLJXAJU-UHFFFAOYSA-N diglycidyl ether Chemical compound C1OC1COCC1CO1 GYZLOYUZLJXAJU-UHFFFAOYSA-N 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
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- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
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- 239000004408 titanium dioxide Substances 0.000 description 1
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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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/03—Powdery paints
- C09D5/032—Powdery paints characterised by a special effect of the produced film, e.g. wrinkle, pearlescence, matt finish
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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
- C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
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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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/03—Powdery paints
- C09D5/033—Powdery paints characterised by the additives
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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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
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- Chemical Kinetics & Catalysis (AREA)
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Abstract
Description
본 발명은 전기 기기용 단열 기능성 분체도료에 관한 것이다.The present invention relates to a heat insulating functional powder coating for electrical equipment.
분체도료는 유해한 용제의 사용없이 제품의 표면에 깨끗한 표면의 도막을 입히고, 다양한 외부환경의 영향으로부터 제품의 외관을 보호할 수 있어서 산업용 기기로부터 생활가전에 이르기까지 거의 모든 분야에 널리 사용되고 있다. 하지만 일반 분체도료는 제품에서 발생하는 열에너지를 제어할 수 있는 기능이 없다. Powder coatings are widely used in almost all fields, from industrial devices to household appliances, because they can coat the surface of products with a clean surface coating without using harmful solvents and protect the appearance of products from the influence of various external environments. However, general powder coatings do not have the ability to control the thermal energy generated by the product.
최근의 많은 전자·전기기기 제품은 성능의 향상과 집적화가 크게 높아지면서 내부 발열문제의 해소 및 관리가 중요한 이슈로 부상하게 되면서, 새로운 기능성 도료의 수요가 발생하였다.Recently, as many electronic and electrical device products have greatly improved performance and integration, solving and managing internal heat problems has emerged as an important issue, resulting in a demand for new functional paints.
방열 분체도료와 함께 단열 분체도료는 발열제어의 기능을 갖는 소재로서, 발생하는 열을 차단하여 열의 전달과 온도상승을 억제하는 기능을 갖는다. 지금까지 단열 기능을 갖는 소재로는 스티로폼으로 대중화되어 있는 구조재와 다량의 실리카 입자를 포함하는 용제형(액상) 도료가 상용화되어 있으나, 각각의 소재는 화재위험 및 환경안전의 위험성에 의해 사용이 제한되는 추세이다.Insulation powder coating, along with heat dissipation powder coating, is a material that has a function of controlling heat generation, and has a function of suppressing heat transfer and temperature rise by blocking generated heat. Styrofoam, a popular structural material, and solvent-type (liquid) paints containing a large amount of silica particles have been commercialized as materials with an insulating function, but the use of each material is limited due to fire risk and environmental safety risks. trend to become
하지만, 현재까지 분체도료에 단열 기능성을 부가한 분체도료는 개발된 바 없다.However, until now, powder coatings in which thermal insulation functionality is added to powder coatings have not been developed.
한편, 액상 도료는 용제에서 발생되는 다양한 휘발성 유기화합물들이 인체에 유해하여 아토피와 같은 피부질환이나 호흡기질환을 유발시키기도 하며, 대기도 오염시키는 단점이 있다.On the other hand, liquid paint has a disadvantage in that various volatile organic compounds generated from solvents are harmful to the human body, causing skin diseases such as atopy or respiratory diseases, and polluting the air.
이에 반해, 분체 도료는 용제를 사용하지 않기 때문에 액상 도료처럼 휘발성 유기화합물이 발생되지 않아 액상 도료에 비해 친환경적이고, 인체에도 유해하지 않으며, 원하는 두께의 도막을 손쉽게 얻을 수 있는 장점이 있다. 또한, 분체도료는 기재 표면 보호, 광택 등의 개선 목적으로도 많은 제품에 광범위한 코팅기술로 적용되고 있다.On the other hand, since powder paint does not use a solvent, it does not generate volatile organic compounds like liquid paint, so it is more environmentally friendly than liquid paint, is not harmful to the human body, and has the advantage of being able to easily obtain a coating film of a desired thickness. In addition, powder coatings are applied as a wide range of coating technologies to many products for the purpose of improving the surface protection of substrates and gloss.
상술한 바와 같은 도료의 특성으로 인해 최근에는 액상 도료의 사용이 자제되고, 분체 도료의 사용이 장려되고 있는 실정이나, 단열 기능성을 갖는 도료로는 액상 도료의 형태로 건축구조물 도장 용도로 시중에 판매중일 뿐이다.Due to the characteristics of paints as described above, the use of liquid paints has recently been discouraged and the use of powder paints has been encouraged. However, paints with insulation functionality are sold in the form of liquid paints for the purpose of painting building structures. only in the middle
이에, 본 발명자들은 단열 기능성 분체도료 제조기술을 연구하던 중, 단열 기능성 필러로서 제올라이트 및 황산바륨을 조합하여 사용할 경우, 제조단가를 현저히 절감할 수 있을 뿐만 아니라, 분체도료의 경화가 잘 이루어지고 표면이 매끄럽게 잘 코팅되며, 또한 단열 성능 역시 충분히 달성함을 확인하여, 본 발명을 완성하였다.Accordingly, the inventors of the present invention, while researching a technology for manufacturing a functional heat insulating powder coating, found that, when using a combination of zeolite and barium sulfate as a heat insulating functional filler, the manufacturing cost can be significantly reduced, and the powder coating can be well cured and the surface The present invention was completed by confirming that the coating was smoothly and well, and that the heat insulation performance was also sufficiently achieved.
본 발명의 목적은 전기 기기용 단열 기능성 분체도료를 제공하는 것이다.An object of the present invention is to provide a heat insulating functional powder coating for electrical equipment.
본 발명의 다른 목적은 상기 전기 기기용 단열 기능성 분체도료를 포함하는 전기 기기를 제공하는 것이다.Another object of the present invention is to provide an electrical device comprising the heat insulating functional powder coating for the electrical device.
상기 목적을 달성하기 위하여,In order to achieve the above purpose,
본 발명은 폴리에스터(polyester) 및 에폭시 수지(epoxy resin)를 포함하는 베이스 수지; 및 The present invention is a base resin including polyester (polyester) and epoxy resin (epoxy resin); and
제1 단열 필러로서, 제올라이트;를 포함하는, 전기 기기용 단열 기능성 분체도료를 제공한다.As the first heat insulating filler, it provides a heat insulating functional powder coating for electrical devices, including zeolite.
또한, 본 발명은 상기 전기 기기용 단열 기능성 분체도료를 포함하는 전기 기기를 제공한다.In addition, the present invention provides an electrical device including the heat insulating functional powder coating for the electrical device.
본 발명에 따른 전기 기기용 단열 기능성 분체도료는 분체도료의 경화가 잘 이루어지고 표면이 매끄럽게 잘 코팅되며, 또한 단열 성능 역시 우수한 효과가 있다.The heat-insulating functional powder coating for electric devices according to the present invention is well cured, the surface is well coated, and also has excellent thermal insulation performance.
도 1은 본 발명의 제조예 1에 따른 베이스 수지의 (a)경화 전 및 (b)경화 후 화학구조식을 나타낸 도이다.
도 2는 비교예 1 및 2, 비교예 5, 실시예 1 및 2의 단열 분체도료를 알루미늄합금 기재에 도포한 다음 경화 후 표면 상태를 디지털 카메라로 촬영한 사진이다.
도 3은 비교예 5, 실시예 1 및 2의 단열 분체도료를 알루미늄합금 기재에 도포한 다음 경화 후 표면 상태를 SEM으로 촬영한 이미지이다.
도 4는 단열 분체도료의 단열 특성을 평가하기 위한 실험장치 셋팅을 나타낸 모식도이다.
도 5는 제조예 1, 실시예 1 및 2의 분체도료를 알루미늄합금 기재에 코팅한 후 Hot/Cold Plate 상에 놓고 시간 경과에 따른 표면온도(T2) 변화를 나타낸 그래프이다.1 is a diagram showing the chemical structure of a base resin (a) before curing and (b) after curing according to Preparation Example 1 of the present invention.
2 is a photograph taken with a digital camera of the surface state after the heat insulating powder coatings of Comparative Examples 1 and 2, Comparative Example 5, and Examples 1 and 2 were applied to an aluminum alloy substrate and then cured.
3 is an image taken by SEM of the surface state after the heat-insulating powder coating of Comparative Example 5 and Examples 1 and 2 was applied to an aluminum alloy substrate and then cured.
Figure 4 is a schematic diagram showing the experimental device settings for evaluating the heat insulating properties of the heat insulating powder coating.
5 is a graph showing the change in surface temperature (T2) over time after coating the powder coatings of Preparation Example 1 and Examples 1 and 2 on an aluminum alloy substrate and then placing it on a Hot / Cold Plate.
이하, 본 발명을 상세히 설명한다.Hereinafter, the present invention will be described in detail.
전기 기기용 단열 기능성 분체도료Insulation functional powder coating for electrical equipment
본 발명은 폴리에스터(polyester) 및 에폭시 수지(epoxy resin)를 포함하는 베이스 수지; 및The present invention is a base resin including polyester (polyester) and epoxy resin (epoxy resin); and
제1 단열 필러로서, 제올라이트;를 포함하는, 전기 기기용 단열 기능성 분체도료를 제공한다.As the first heat insulating filler, it provides a heat insulating functional powder coating for electrical devices, including zeolite.
본 발명에 따른 전기 기기용 단열 기능성 분체도료에 있어서, 제2 단열 필러로서, 황산바륨을 더 포함할 수 있다.In the heat-insulating functional powder coating for electric devices according to the present invention, barium sulfate may be further included as the second heat-insulating filler.
본 발명에 따른 전기 기기용 단열 기능성 분체도료에 있어서, 상기 베이스 수지는 폴리에스터 60 내지 80 중량부 및 에폭시 수지 20 내지 40 중량부 혼합하여 사용할 수 있고, 바람직하게는 폴리에스터 70 중량부 기준 에폭시 수지 27-33 중량부 사용할 수 있으며, 더욱 바람직하게는 폴리에스터 70 중량부 기준 에폭시 수지 29-31 중량부 사용할 수 있다. 만약, 상기 구성요소 함량범위를 벗어나면 분체도료의 물리적 특성을 달성할 수 없는 문제가 있을 수 있다.In the heat insulating functional powder coating for electric devices according to the present invention, the base resin may be used by mixing 60 to 80 parts by weight of polyester and 20 to 40 parts by weight of an epoxy resin, preferably based on 70 parts by weight of polyester epoxy resin. 27-33 parts by weight may be used, and more preferably 29-31 parts by weight of the epoxy resin based on 70 parts by weight of polyester may be used. If the content of the above components is out of range, there may be a problem in that the physical properties of the powder coating cannot be achieved.
본 발명에 따른 전기 기기용 단열 기능성 분체도료에 있어서, 가공조제로서 왁스, 벤조인, 산화방지제 및 레벨링제로 이루어진 군으로부터 선택되는 1종 이상의 첨가제를 더 포함하는 것일 수 있다. 바람직하게는, 상기 첨가제는 벤조인 및 레벨링제의 혼합물을 이용하는 것일 수 있다.In the heat insulating functional powder coating for electric devices according to the present invention, one or more additives selected from the group consisting of wax, benzoin, antioxidants and leveling agents may be further included as a processing aid. Preferably, the additive may be a mixture of benzoin and a leveling agent.
본 발명에 따른 전기 기기용 단열 기능성 분체도료에 있어서, 각 구성요소의 함량은 다음과 같을 수 있다. 만약, 각 구성요소의 함량이 아래 정의된 범위를 벗어날 경우에는 단열 기능성이 저하되는 문제와 분체도료로서 요구되는 물리적 특성을 만족하지 못하거나, 경화가 일어나지 않는 문제가 있을 수 있다.In the heat insulating functional powder coating for electric devices according to the present invention, the content of each component may be as follows. If the content of each component is out of the range defined below, there may be a problem of deterioration of thermal insulation functionality, failure to satisfy physical properties required as a powder coating, or failure to cure.
베이스 수지 100 중량부 기준;Based on 100 parts by weight of the base resin;
제1 단열 필러로서, 제올라이트 40-60 중량부, 바람직하게는 45-55 중량부, 더욱 바람직하게는 48-52 중량부.As the first insulating filler, 40-60 parts by weight of zeolite, preferably 45-55 parts by weight, more preferably 48-52 parts by weight.
만약, 제2 단열 필러를 더 포함할 경우에는,If the second heat insulating filler is further included,
베이스 수지 100 중량부 기준;Based on 100 parts by weight of the base resin;
제1 단열 필러로서, 제올라이트 20-30 중량부; 및As the first insulating filler, 20-30 parts by weight of zeolite; and
제2 단열 필러로서, 황산바륨 20-30 중량부.As the second insulating filler, 20-30 parts by weight of barium sulfate.
바람직하게는,Preferably,
베이스 수지 100 중량부 기준;Based on 100 parts by weight of the base resin;
제1 단열 필러로서, 제올라이트 24.5-25.5 중량부; 및As the first insulating filler, 24.5 to 25.5 parts by weight of zeolite; and
제2 단열 필러로서, 황산바륨 24.5-25.5 중량부.As the second insulating filler, 24.5-25.5 parts by weight of barium sulfate.
상기 전기 기기의 일례로는, 고압배전반, 저압배전반, 전동기제어반, 분전반, 태양광발전용인버터, 태양광발전접속함, 태양광발전지지대, 에너지저장장치, 자동제어반, 계측제어장치 등을 들 수 있다.Examples of the electric devices include high-voltage switchboards, low-voltage switchboards, motor control panels, distribution boards, inverters for photovoltaic power generation, solar power junction boxes, photovoltaic power generation supports, energy storage devices, automatic control panels, instrument control devices, and the like. there is.
전기 기기electrical appliance
본 발명은 상기 전기 기기용 단열 기능성 분체도료를 포함하는 전기 기기를 제공한다.The present invention provides an electrical device comprising the heat insulating functional powder coating for the electrical device.
상기 전기 기기의 일례로는, 고압배전반, 저압배전반, 전동기제어반, 분전반, 태양광발전용인버터, 태양광발전접속함, 태양광발전지지대, 에너지저장장치, 자동제어반, 계측제어장치 등을 들 수 있다.Examples of the electric devices include high-voltage switchboards, low-voltage switchboards, motor control panels, distribution boards, inverters for photovoltaic power generation, solar power junction boxes, photovoltaic power generation supports, energy storage devices, automatic control panels, instrument control devices, and the like. there is.
이하, 본 발명을 하기의 실시예에 의하여 더욱 상세하게 설명한다. 단, 하기의 실시예는 본 발명을 예시하는 것일 뿐, 본 발명의 내용이 하기의 실시예에 의해 한정되는 것은 아니다.Hereinafter, the present invention will be described in more detail by the following examples. However, the following examples are merely illustrative of the present invention, and the contents of the present invention are not limited by the following examples.
<제조예 1> 베이스 수지의 제조<Production Example 1> Preparation of base resin
수지는 폴리에스터(polyester) 70.3 중량부 및 에폭시 레진(epoxy resin) 29.7 중량부 혼합하여 경화시켜 제조하였다. 이때, 폴리에스터는 카르복실기(Carboxylic group: -COOH)를 갖는 Carboxyl polyester(alymers HC7803, INOPOL., CO. Ltd), 에폭시는 비스페놀-A형의 Glycidyl ether 형태의 Epoxy resin(YD-013K, 국도화학(주))을 구입하여 사용하였고, 이들의 경화 형태는 도 1과 같다.The resin was prepared by curing by mixing 70.3 parts by weight of polyester and 29.7 parts by weight of epoxy resin. At this time, polyester is carboxyl polyester (alymers HC7803, INOPOL., CO. Ltd) having a carboxyl group (Carboxylic group: -COOH), and epoxy is bisphenol-A type glycidyl ether type Epoxy resin (YD-013K, Kukdo Chemical ( Note)) was purchased and used, and their cured form is shown in FIG.
도 1은 본 발명의 제조예 1에 따른 베이스 수지의 (a)경화 전 및 (b)경화 후 화학구조식을 나타낸 도이다.1 is a diagram showing the chemical structure of a base resin (a) before curing and (b) after curing according to Preparation Example 1 of the present invention.
<실시예 및 비교예> 단열 분체도료의 제조<Examples and Comparative Examples> Preparation of thermal insulation powder coating
베이스 수지, 단열 필러 및 가공조제를 혼합하여 단열 분체도료를 제조하였다.A heat insulating powder coating was prepared by mixing the base resin, the heat insulating filler, and the processing aid.
베이스 수지는 제조예 1의 수지를 이용하였다.As the base resin, the resin of Preparation Example 1 was used.
단열 필러는 입도 2 내지 5μm 수준의 이산화티타늄(titanium dioxide, TiO2; 쌍용화학), 평균입도 40 μm 수준의 에어로겔(제조사: 지오스 에어로바, 모델명: AP 40), 평균입도 4 μm 수준의 다공성 실리카(제조사: 지오스 에어로바, 모델명: D4), 입도 5-10 μm 수준의 황산바륨(제조사: 대명화학) 및 평균입도 5 μm 수준의 제올라이트(제조사: JST, 모델명: JST MS40) 중 1종 이상의 분말을 이용하였다.The insulation filler is titanium dioxide (TiO 2 ; Ssangyong Chemical) with a particle size of 2 to 5 μm, airgel with an average particle size of 40 μm (manufacturer: Geos Aerobar, model name: AP 40), and porous silica with an average particle size of 4 μm. (Manufacturer: Geos Aerobar, model name: D4), barium sulfate with a particle size of 5-10 μm (manufacturer: Daemyung Chemical) and zeolite with an average particle size of 5 μm (manufacturer: JST, model name: JST MS40). was used.
가공조제(첨가제)는 벤조인(제조사: 미원상사) 및 레벨링제(제조사: KSCT, 모델명: PCL 63F)의 혼합물을 사용하였다.A processing aid (additive) used a mixture of benzoin (manufacturer: Miwon Corporation) and leveling agent (manufacturer: KSCT, model name: PCL 63F).
상기 베이스 수지, 단열 필러 및 가공조제를 하기 표 1과 같이 혼합하여 단열 분체도료를 제조하였다. 구체적으로, 상기 베이스 수지, 단열 필러 및 가공조제를 모두 슈퍼믹서를 사용하여 사전 혼합한 후에 150℃ 온도로 설정된 twin extruder 장치에 투입하고 압출하여 혼합조성물 칩(compound chip)을 제조하고, 이것을 냉동분쇄기를 사용하여 15-20 μm 입도 수준으로 분쇄함으로써 최종적으로 실시예 및 비교예의 단열 분체도료를 준비하였다.A heat insulating powder coating was prepared by mixing the base resin, heat insulating filler, and processing aid as shown in Table 1 below. Specifically, the base resin, insulation filler, and processing aid are all pre-mixed using a super mixer, and then put into a twin extruder device set at a temperature of 150 ° C and extruded to prepare a mixed composition chip (compound chip), which is frozen and shredded Finally, heat insulating powder coatings of Examples and Comparative Examples were prepared by grinding to a particle size of 15-20 μm using.
상기 표 1의 단열 필러 중에서, 에어로겔, 다공성 실리카 및 제올라이트는 단열제 성분으로 잘 알려져 있는 성분이고, 이산화티타늄(TiO2) 및 황산바륨은 무기 필러로서 조합하여 사용하였다.Among the insulating fillers in Table 1, airgel, porous silica, and zeolite are well-known components of the insulating material, and titanium dioxide (TiO 2 ) and barium sulfate were used in combination as inorganic fillers.
<실험예 1> 경화 상태 및 표면 상태 평가<Experimental Example 1> Evaluation of cured state and surface state
(1) 경화 상태 평가(1) Evaluation of curing state
비교예 1 내지 6 및 실시예 1의 단열 분체도료를 알루미늄합금(Al 6061) 기재에 도포한 다음 경화가 잘 이루어지는지 확인하였다.The heat-insulating powder coatings of Comparative Examples 1 to 6 and Example 1 were applied to an aluminum alloy (Al 6061) substrate, and then it was confirmed whether curing was performed well.
그 결과, 비교예 3 및 4는 경화가 이루어지지 않아 사용할 수 없음을 확인할 수 있었다. 나머지 비교예 1 및 2, 비교예 5, 실시예 1 및 2는 모두 경화가 잘 이루어지는 것을 확인할 수 있었다.As a result, it was confirmed that Comparative Examples 3 and 4 could not be used because curing did not occur. It was confirmed that all of Comparative Examples 1 and 2, Comparative Example 5, and Examples 1 and 2 were well cured.
본 실험을 통해 단열 필러로 '다공성 실리카'를 다량 사용한 샘플(비교예 3 및 4)은 경화가 이루어지지 않아 분체도료의 단열 필러로는 사용할 수 없음을 확인하였다. 참조로, 액상도료에서는 단열 필러로 다공성 실리카를 사용할 수 있다.Through this experiment, it was confirmed that samples using a large amount of 'porous silica' as an insulating filler (Comparative Examples 3 and 4) could not be used as an insulating filler for powder coatings because they were not cured. For reference, in liquid paints, porous silica can be used as an insulating filler.
(2) 표면 상태 평가(2) Evaluation of surface condition
먼저, 상기 경화 상태 평가에서 경화가 잘 이루어지는 비교예 1 및 2, 비교예 5, 실시예 1 및 2의 표면 상태를 육안으로 평가하였고, 그 결과를 도 2에 나타내었다.First, in the curing state evaluation, the surface states of Comparative Examples 1 and 2, Comparative Example 5, and Examples 1 and 2, which were well cured, were visually evaluated, and the results are shown in FIG. 2 .
도 2는 비교예 1 및 2, 비교예 5, 실시예 1 및 2의 단열 분체도료를 기재에 도포한 다음 경화 후 표면 상태를 디지털 카메라로 촬영한 사진이다.Figure 2 is a photograph taken with a digital camera of the surface state after the heat insulating powder coatings of Comparative Examples 1 and 2, Comparative Example 5, and Examples 1 and 2 were applied to a substrate and then cured.
도 2에 나타난 바와 같이, 비교예 1 및 2는 표면 상태가 매우 거칠어 도료로 사용하기 힘든 수준임을 확인하였고, 비교예 5는 표면 상태가 약간 거칠게 나타남을 확인하였으며, 실시예 1 및 실시예 2는 표면이 매끄러워 상태가 우수함을 확인할 수 있었다. 즉, 종래 액상 도료에 첨가하는 단열 기능성 필러로서 알려진 에어로겔, 다공성실리카 및 제올라이트 중에서, 에어로겔 및 다공성 실리카는 분체도료의 단열 필러로는 사용할 수 없음을 알 수 있었다.As shown in FIG. 2, it was confirmed that Comparative Examples 1 and 2 had a very rough surface condition, making it difficult to use as a paint, and Comparative Example 5 confirmed that the surface condition was slightly rough. It was confirmed that the surface was smooth and in excellent condition. That is, among airgels, porous silicas, and zeolites known as heat insulating functional fillers added to conventional liquid paints, it was found that airgels and porous silicas could not be used as heat insulating fillers for powder coatings.
이에, 비교예 5, 실시예 1 및 2의 표면 상태를 더욱 상세하게 관찰하기 위하여 도료막 단면을 SEM으로 촬영하였고, 그 결과를 도 3에 나타내었다.Therefore, in order to observe the surface state of Comparative Example 5 and Examples 1 and 2 in more detail, the cross-section of the paint film was photographed by SEM, and the results are shown in FIG. 3.
도 3은 비교예 5, 실시예 1 및 2의 단열 분체도료를 알루미늄합금 기재에 도포한 다음 경화 후 표면 상태를 SEM으로 촬영한 이미지이다.3 is an image taken by SEM of the surface state after the heat-insulating powder coating of Comparative Example 5 and Examples 1 and 2 was applied to an aluminum alloy substrate and then cured.
도 3에 나타난 바와 같이, 비교예 5는 표면 거칠기가 관찰되는 반면에, 실시예 1 및 2는 모두 표면이 매우 매끄럽게 나타남을 확인할 수 있었다.As shown in FIG. 3 , while surface roughness was observed in Comparative Example 5, it was confirmed that both Examples 1 and 2 had very smooth surfaces.
본 실험예 1을 통해 비교예 5는 표면이 다소 거칠어 도료로 사용하기 어렵지만, 실시예 1 및 2는 도료로 사용하기에 표면 상태가 우수함을 확인하였다.Through Experimental Example 1, it was confirmed that Comparative Example 5 had a somewhat rough surface and was difficult to use as a paint, but Examples 1 and 2 had excellent surface conditions to be used as a paint.
본 실험결과를 통해 단열 필러로 에어로겔을 포함한 샘플(비교예 1, 2 및 5)은 표면이 거칠어 분체도료의 단열필러로 사용할 수 없음을 확인하였다. 참조로, 액상도료에서는 단열 필러로 에어로겔을 사용할 수 있다.Through this experimental result, it was confirmed that the samples (Comparative Examples 1, 2, and 5) containing airgel as an insulating filler could not be used as an insulating filler for powder coatings due to their rough surfaces. For reference, in liquid paint, airgel can be used as an insulating filler.
<실험예 2> 단열 분체도료의 열기(heat) 및 냉기(cold) 단열 특성 평가<Experimental Example 2> Evaluation of heat and cold insulation properties of thermal insulation powder coating
단열 분체도료의 열기 및 냉기 단열 특성을 도 4에 나타낸 바와 같이 실험장치를 셋팅하고, 핫/콜드 플레이트 상에 샘플을 올려놓고 플레이트 설정 온도까지 충분히 포화되도록 최대 960분 경과한 후, 표면온도(T2)를 측정하여 단열 성능을 평가하였다.As shown in FIG. 4, the heat and cold insulation properties of the heat-insulating powder coating set the experimental apparatus, put the sample on the hot / cold plate, and after a maximum of 960 minutes elapsed so that it was sufficiently saturated to the set temperature of the plate, the surface temperature (T2 ) was measured to evaluate the insulation performance.
도 4는 단열 분체도료의 단열 특성을 평가하기 위한 실험장치 셋팅을 나타낸 모식도이다.Figure 4 is a schematic diagram showing the experimental device settings for evaluating the heat insulating properties of the heat insulating powder coating.
(1) 열기(heat) 단열 특성 평가(1) Evaluation of heat insulation properties
알루미늄합금 기재에 비교예 1 내지 6 및 실시예 1의 단열 분체도료를 도포한 다음 경화한 샘플을 실험에 사용하였다.The heat-insulating powder coatings of Comparative Examples 1 to 6 and Example 1 were applied to aluminum alloy substrates and cured samples were used in the experiment.
도 4의 Hot Plate 온도(T1)를 70℃로 셋팅하고, 시간 경과에 따른 표면온도(T2, ℃)를 측정하였다. 실험실의 대기온도는 23℃이었다.The hot plate temperature (T1) in FIG. 4 was set to 70 ° C, and the surface temperature (T2, ° C) was measured over time. The ambient temperature of the laboratory was 23 °C.
표 2에 나타난 바와 같이, 단열 성능 측면에서는 에어로겔을 포함한 샘플(비교예 1 및 2)이 가장 우수할 것으로 예상되었으나, 실시예 1 및 2 샘플이 에어로겔을 포함하지 않음에도 불구하고 단열 성능이 우수하게 나타남을 확인할 수 있었다.As shown in Table 2, in terms of thermal insulation performance, the samples containing airgel (Comparative Examples 1 and 2) were expected to be the best, but the samples of Examples 1 and 2 showed excellent thermal insulation performance even though they did not contain airgel. could be confirmed to appear.
또한, 초기 30분 경과시의 온도가 일반분체도료보다 25-26℃ 낮은 온도로 단열분체도막에서 대기로 열을 전달하지 못하는 것을 의미한다. 이는 시간이 지남에 따라 서서히 온도가 포화 상태에 도달 하지만 다공질의 필러내 기공 부분에서 열을 머금고 있음을 의미한다.In addition, the temperature at the time of the initial 30 minutes is 25-26 ℃ lower than that of general powder coating, which means that heat cannot be transferred from the heat insulating powder coating to the atmosphere. This means that although the temperature gradually reaches saturation over time, heat is stored in the pore portion of the porous filler.
그러나, 앞선 실험예 1에서 비교예 1, 2 및 5는 표면이 거칠어 도료로 사용할 수 없음을 확인하였었고, 단열 분체도료로 사용할 수 있는 샘플은 실시예 1 및 2만 가능하다. 또한, 실시예 1 및 2의 단열 특성을 비교하여 보면 실시예 1 대비 실시예 2가 더욱 단열 성능이 우수함을 확인할 수 있다.However, in Experimental Example 1 above, it was confirmed that Comparative Examples 1, 2 and 5 could not be used as paints due to their rough surfaces, and only Examples 1 and 2 could be used as heat insulating powder coatings. In addition, when comparing the thermal insulation properties of Examples 1 and 2, it can be confirmed that Example 2 has more excellent thermal insulation performance compared to Example 1.
(2) 냉기(cold) 단열 특성 평가(2) Evaluation of cold insulation characteristics
상기 단열 특성 평가에서 사용한 핫 플레이트 대신 콜드 플레이트를 사용한 것을 제외하고는 동일하게 실험하였다.The same experiment was performed except that a cold plate was used instead of the hot plate used in the evaluation of the thermal insulation properties.
도 4의 Cold Plate 온도(T1)를 -15℃로 셋팅하고, 시간 경과에 따른 표면온도(T2, ℃)를 측정하였다. 실험실의 대기온도는 23℃이었다.The cold plate temperature (T1) of FIG. 4 was set to -15 ° C, and the surface temperature (T2, ° C) was measured over time. The ambient temperature of the laboratory was 23 °C.
표 3에 나타난 바와 같이, 일반 분체도료 대비 실시예 1 및 2의 냉기 단열 특성이 현저히 우수함을 확인할 수 있다. 또한, 실시예 1 및 2의 냉기 단열 특성을 비교하여 보면 실시예 1 대비 실시예 2가 냉기 단열 특성이 더욱 우수함을 확인할 수 있다.As shown in Table 3, it can be confirmed that the cold air insulation properties of Examples 1 and 2 are significantly superior to that of general powder coatings. In addition, when comparing the cold air insulation properties of Examples 1 and 2, it can be confirmed that Example 2 has more excellent cold air insulation properties compared to Example 1.
상기 나타난 바와 같이, 열기 및 냉기 단열 특성 평가결과는 유사한 경향을 나타내었다.As shown above, the evaluation results of heat and cold air insulation properties showed similar tendencies.
제조예 1, 실시예 1 및 2의 T2 표면온도 측정값을 도 5에 나타내었다.The T2 surface temperature measurement values of Preparation Example 1 and Examples 1 and 2 are shown in FIG. 5 .
<실험예 3> 베이스 수지 및 단열 필러의 최적 함량비 도출 평가<Experimental Example 3> Derivation evaluation of optimal content ratio of base resin and insulating filler
본 실험예 3에서는 열기(heat) 단열 특성 평가를 통해 실시예 2를 기준으로 한 구성요소의 최적 함량비를 알아보기 위하여, 표 4와 같이 구성요소의 함량을 달리한 샘플에 대하여 실험을 실시하였다. 실험방법은 실험예 2의 단열 특성 평가와 동일하게 실시하였다.In this Experimental Example 3, in order to find out the optimal content ratio of the components based on Example 2 through heat insulation property evaluation, experiments were conducted on samples with different component contents as shown in Table 4 . The experimental method was carried out in the same way as in the evaluation of the insulation properties of Experimental Example 2.
70
70
30
30
25.0
25.0
25.0
25.0
표 4에 나타난 바와 같이, 실시예 1-2 내지 1-4, 그리고 실시예 2-2 내지 2-4의 샘플에서 단열 특성이 우수하게 나타남을 확인할 수 있었다. 참조로, 단열 도료 기술분야에서 T2 온도가 1℃만 향상되어도 현저한 수준이라 볼 수 있다.As shown in Table 4, it was confirmed that the samples of Examples 1-2 to 1-4 and Examples 2-2 to 2-4 showed excellent thermal insulation properties. For reference, in the field of heat insulating paint technology, even if the T2 temperature is improved by only 1 ° C, it can be seen as a remarkable level.
<실험예 4> 열전도도 평가<Experimental Example 4> Evaluation of thermal conductivity
이에, 본 실험에서는 샘플의 열전도도를 평가하였다.Therefore, in this experiment, the thermal conductivity of the sample was evaluated.
(제조예 1)general powder
(Production Example 1)
표 5에 나타난 바와 같이, 일반분체(제조예 1) 대비는 실시예 1 및 실시예 2의 열전도도가 현저히 낮게 나타났고, 실시예 1 대비는 실시예 2의 열전도도가 더욱 낮게 나타나 단열 성능이 우수함을 확인할 수 있었다.As shown in Table 5, compared to the normal powder (Production Example 1), the thermal conductivity of Examples 1 and 2 was significantly lower, and the thermal conductivity of Example 2 was lower than that of Example 1, indicating that the insulation performance was improved. excellence was confirmed.
바람직한 실시예들을 중심으로 살펴보았다. 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자는 본 발명이 본 발명의 본질적인 특성에서 벗어나지 않는 범위에서 변형된 형태로 구현될 수 있음을 이해할 수 있을 것이다. 그러므로 개시된 실시예들은 한정적인 관점이 아니라 설명적인 관점에서 고려되어야 한다. 본 발명의 범위는 전술한 설명이 아니라 특히 청구범위에 나타나 있으며, 그와 동등한 범위 내에 있는 모든 차이점은 본 발명에 포함된 것으로 해석되어야 할 것이다.We looked around the preferred embodiments. Those of ordinary skill in the art to which the present invention pertains will understand that the present invention can be implemented in a modified form without departing from the essential characteristics of the present invention. Therefore, the disclosed embodiments should be considered from an illustrative rather than a limiting point of view. The scope of the present invention is particularly indicated in the claims rather than the foregoing description, and all differences within the equivalent range should be construed as being included in the present invention.
Claims (9)
상기 베이스 수지 100 중량부 기준 제1 단열 필러로서, 제올라이트 24.5-25.5 중량부; 및
상기 베이스 수지 100 중량부 기준 제2 단열 필러로서, 황산바륨 24.5-25.5 중량부;를 포함하는, 전기 기기용 단열 기능성 분체도료.
A base resin including 29-31 parts by weight of an epoxy resin based on 70 parts by weight of polyester;
As the first insulating filler based on 100 parts by weight of the base resin, 24.5 to 25.5 parts by weight of zeolite; and
24.5-25.5 parts by weight of barium sulfate as the second insulating filler based on 100 parts by weight of the base resin;
상기 베이스 수지는 왁스, 벤조인, 산화방지제 및 레벨링제로 이루어진 군으로부터 선택되는 1종 이상의 가공조제를 더 포함하는 것을 특징으로 하는, 전기 기기용 단열 기능성 분체도료.
According to claim 1,
The base resin further comprises at least one processing aid selected from the group consisting of wax, benzoin, antioxidant, and leveling agent, a heat-insulating functional powder coating for electric devices.
상기 전기 기기는 고압배전반, 저압배전반, 전동기제어반, 분전반, 태양광발전용인버터, 태양광발전접속함, 태양광발전지지대, 에너지저장장치, 자동제어반 또는 계측제어장치인 것을 특징으로 하는, 전기 기기용 단열 기능성 분체도료.
According to claim 1,
The electrical device is a high voltage switchboard, a low voltage switchboard, a motor control panel, a distribution board, an inverter for solar power generation, a solar power junction box, a solar power generation support, an energy storage device, an automatic control panel or an instrumentation control device, characterized in that Thermal insulation functional powder coating.
An electrical device comprising the heat-insulating functional powder coating for electrical devices of claim 1.
상기 전기 기기는 고압배전반, 저압배전반, 전동기제어반, 분전반, 태양광발전용인버터, 태양광발전접속함, 태양광발전지지대, 에너지저장장치, 자동제어반 또는 계측제어장치인 것을 특징으로 하는, 전기 기기.According to claim 8,
The electrical device is a high voltage switchboard, a low voltage switchboard, a motor control panel, a distribution board, an inverter for solar power generation, a solar power junction box, a solar power generation support, an energy storage device, an automatic control panel or an instrumentation control device, characterized in that .
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| KR101296285B1 (en) | 2013-04-12 | 2013-08-13 | 주식회사 엠.에스.라이팅 | Eco-friendly powdery paints and luminaire using thereof |
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| KR101464306B1 (en) * | 2012-10-08 | 2014-11-24 | 차인회 | Adiabatic and insulativepaint composition |
| KR101312314B1 (en) * | 2012-10-26 | 2013-09-27 | 주식회사 대화 정밀화학 | Composition for flooring and coating method of flooring |
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