JP2014184673A - Thermal insulation structure and thermal insulation coating composition - Google Patents

Thermal insulation structure and thermal insulation coating composition Download PDF

Info

Publication number
JP2014184673A
JP2014184673A JP2013061841A JP2013061841A JP2014184673A JP 2014184673 A JP2014184673 A JP 2014184673A JP 2013061841 A JP2013061841 A JP 2013061841A JP 2013061841 A JP2013061841 A JP 2013061841A JP 2014184673 A JP2014184673 A JP 2014184673A
Authority
JP
Japan
Prior art keywords
thermal barrier
average
scaly
barrier coating
powder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2013061841A
Other languages
Japanese (ja)
Other versions
JP5976578B2 (en
Inventor
Tatsuya Kano
達弥 加納
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aisin Chemical Co Ltd
Original Assignee
Aisin Chemical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Aisin Chemical Co Ltd filed Critical Aisin Chemical Co Ltd
Priority to JP2013061841A priority Critical patent/JP5976578B2/en
Publication of JP2014184673A publication Critical patent/JP2014184673A/en
Application granted granted Critical
Publication of JP5976578B2 publication Critical patent/JP5976578B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

PROBLEM TO BE SOLVED: To always exhibit high thermal insulation properties.SOLUTION: Flaky powder in which the average area of the flat surface is 200 μm, and also, the ratio of the average circumferential length to the average area is 0.3 or lower is used. Since the ruggedness of the outer circumferential surface of the flaky grains is reduced and irregularly reflecting heat rays can be reduced, thus heat rays absorbed on a vehicle can be reduced to improve its thermal insulation properties.

Description

本発明は、輻射熱を反射する遮熱塗膜をもつ遮熱構造物と、その遮熱塗膜を形成する遮熱用塗料組成物に関する。   The present invention relates to a thermal barrier structure having a thermal barrier coating that reflects radiant heat, and a thermal barrier coating composition that forms the thermal barrier coating.

自動車の床下には、エキゾーストマニホールドとマフラーとを連結する排気管が配設されている。この排気管は、通過する排ガスによってかなりの高温となる。そこで、排気管の熱が車室内に伝達されたり、周辺のゴム部品やシール材などが熱劣化するのを防止するために、主にアルミニウムを素材とする遮熱板を排気管の周辺に取り付けることが行われている。   An exhaust pipe that connects the exhaust manifold and the muffler is disposed under the floor of the automobile. The exhaust pipe becomes very hot due to the exhaust gas passing therethrough. Therefore, in order to prevent the heat of the exhaust pipe from being transmitted to the passenger compartment and the surrounding rubber parts and sealing materials from being thermally deteriorated, a heat shield plate mainly made of aluminum is attached around the exhaust pipe. Things have been done.

この遮熱板は、例えば特開2004−308534号公報などに記載されているように、排気管と間隔を隔てた状態で車体に取り付ける必要があり、取り付け工数が多大であるとともに、部品点数が多いという問題がある。さらに振動による脱落を防止する必要があり、また軽量化の要請もあるため、遮熱板を廃止しようとする機運がある。   For example, as described in Japanese Patent Application Laid-Open No. 2004-308534, the heat shield plate needs to be attached to the vehicle body with a distance from the exhaust pipe. There is a problem that there are many. In addition, it is necessary to prevent the dropout due to vibration, and there is a demand for weight reduction, so there is a move to abolish the heat shield.

そこで遮熱板に代えて、遮熱塗料を車体床下などに塗装して排気管からの輻射熱を反射させることが考えられる。例えば特開2006−335949号公報には、大粒径の二酸化チタンと、シリカ粉又はシリケート粉を含有する遮熱塗料組成物が記載されている。また特開2006−045447号公報には、中空球状又は鱗片状の低熱伝導体と、構造助剤及びシランカップリング剤を含有する遮蔽塗料組成物が記載されている。   In view of this, it is conceivable to reflect the radiant heat from the exhaust pipe by coating a thermal barrier paint under the floor of the vehicle body instead of the heat shield plate. For example, Japanese Patent Application Laid-Open No. 2006-335949 describes a thermal barrier coating composition containing titanium dioxide having a large particle size and silica powder or silicate powder. Japanese Patent Application Laid-Open No. 2006-045447 discloses a shielding coating composition containing a hollow spherical or scaly low thermal conductor, a structure aid and a silane coupling agent.

これらの公報には、遮熱塗料組成物を塗装した試験板に20cmの距離から赤外線を30分間照射したとき、無塗装の試験板に比べて表面温度が約40℃低下したことが記載されている。しかしこれらの公報には、塗装膜厚が100〜400μmが好ましく、膜厚が100μm未満では遮熱特性が低下すると記載されている。そのため一般的な塗料に比べて高膜厚に塗装しなければならず、塗装工程及び乾燥工程における工数が多大となり、また塗装時のタレを防止する必要があるなど塗料の設計工数が多大となるという問題があった。   These publications describe that when the test plate coated with the thermal barrier coating composition was irradiated with infrared rays for 30 minutes from a distance of 20 cm, the surface temperature decreased by about 40 ° C. compared to the uncoated test plate. Yes. However, these publications describe that the coating film thickness is preferably 100 to 400 μm, and that the heat shielding property is lowered when the film thickness is less than 100 μm. Therefore, it has to be applied with a high film thickness compared to general paints, which requires a lot of man-hours in the painting process and the drying process, and also requires a lot of man-hours in paint design, such as the need to prevent sagging during painting. There was a problem.

また瓦などの屋根材を通して室内の温度が上昇するという問題があり、野地板の上にアルミシートなどの遮熱シートを貼ることが検討されている。しかしアルミシートなどを貼る場合には、日光反射や滑りなどにより作業時の負担が大きいという問題がある。そこで特開2009−046970号公報には、裏面に低放射率金属膜が設けられた屋根材が記載されている。この屋根材によれば、このような問題を回避することができ、室内温度の上昇を抑制することができる。   In addition, there is a problem that the temperature of the room rises through roof materials such as tiles, and it has been studied to paste a heat shielding sheet such as an aluminum sheet on the base plate. However, when an aluminum sheet or the like is pasted, there is a problem that the burden during work is large due to sunlight reflection or slippage. Japanese Patent Application Laid-Open No. 2009-046970 describes a roof material having a low emissivity metal film on the back surface. According to this roofing material, such a problem can be avoided and an increase in room temperature can be suppressed.

特開2009−046970号公報には、低放射率金属膜の形成方法として、アルミ箔などを貼る方法、ショットピーニング法により金属膜を形成する方法、金属メッキする方法などが例示されている。しかしいずれの方法も、工数が多大となるという問題があった。   Japanese Patent Application Laid-Open No. 2009-046970 exemplifies a method of forming a low emissivity metal film, such as a method of attaching an aluminum foil, a method of forming a metal film by a shot peening method, a method of metal plating, and the like. However, each method has a problem that man-hours are large.

そこで特開2012−066578号公報には、少なくとも平坦表面が熱線に対する反射率95%以上の金属からなる鱗片状粉末を20体積%以上含む塗膜をもつ遮熱構造物が記載されている。この遮熱構造物によれば、塗膜厚が8μmと薄くても十分な遮熱特性が発現される。塗膜厚が薄いほど塗膜中のビヒクル量が低減されるため、ビヒクルに吸収される熱量が低減され遮熱特性が向上する。   Japanese Patent Application Laid-Open No. 2012-065578 describes a heat shield structure having a coating film containing at least 20 vol% of scaly powder made of a metal having a flat surface with a reflectance of 95% or more with respect to heat rays. According to this heat shielding structure, sufficient heat shielding properties are exhibited even when the coating thickness is as thin as 8 μm. As the coating thickness is thinner, the amount of vehicle in the coating is reduced, so that the amount of heat absorbed by the vehicle is reduced and the heat shielding characteristics are improved.

特開2004−308534号公報JP 2004-308534 A 特開2006−335949号公報JP 2006-335949 A 特開2006−045447号公報JP 2006-045447 A 特開2009−046970号公報JP 2009-046970 A 特開2012−066578号公報JP 2012-065578 A

ところが特許文献5に記載された遮熱構造物においては、鱗片状粉末の形状によって遮熱特性が変動するという現象があり、鱗片状粉末の種類によっては十分な遮熱特性が得られないという問題があった。   However, in the heat shield structure described in Patent Document 5, there is a phenomenon that the heat shield characteristics vary depending on the shape of the flaky powder, and depending on the type of the flaky powder, there is a problem that sufficient heat shield characteristics cannot be obtained. was there.

本発明はこのような事情に鑑みてなされたものであり、常に高い遮熱特性が発現されるようにすることを解決すべき課題とする。   This invention is made | formed in view of such a situation, and makes it the subject which should be solved to always make a high thermal-insulation characteristic express.

上記課題を解決する本発明の遮熱構造物の特徴は、基体と、基体の表面に形成された遮熱塗膜と、からなる遮熱構造物であって、
遮熱塗膜は、平坦表面を有する鱗片状粉末を20体積%以上含有し、
鱗片状粉末の少なくとも平坦表面は熱線に対する反射率が95%以上の金属からなり、鱗片状粉末は平坦表面の平均面積が200μm2以上であり、かつ平均面積に対する平均周長の比が0.3以下であり、鱗片状粉末は遮熱塗膜の厚み方向に複数枚含まれ、遮熱塗膜の表面から透視したときに鱗片状粉末が互いに重なり合って基体の表面を覆っていることにある。
A feature of the heat shield structure of the present invention that solves the above problems is a heat shield structure comprising a base and a thermal barrier coating film formed on the surface of the base,
The thermal barrier coating contains 20% by volume or more of scaly powder having a flat surface,
At least the flat surface of the flaky powder is made of a metal having a reflectance of 95% or more with respect to heat rays, and the flaky powder has an average area of the flat surface of 200 μm 2 or more and a ratio of the average circumference to the average area of 0.3. A plurality of scaly powders are included in the thickness direction of the thermal barrier coating film, and the scaly powders overlap each other and cover the surface of the substrate when viewed through the surface of the thermal barrier coating film.

また本発明の遮熱構造物を形成できる遮熱塗料組成物の特徴は、ビヒクルと、平坦表面を有する鱗片状粉末とを含有してなり、鱗片状粉末は全固形分中に20体積%以上含まれ、鱗片状粉末の少なくとも平坦表面は熱線に対する反射率が95%以上の金属からなり、鱗片状粉末は平坦表面の平均面積が200μm2以上であり、かつ平均面積に対する平均周長の比が0.3以下であることにある。 The thermal barrier coating composition capable of forming the thermal barrier structure of the present invention is characterized by comprising a vehicle and a flaky powder having a flat surface, and the flaky powder is 20% by volume or more in the total solid content. And at least the flat surface of the scaly powder is made of a metal having a reflectance of 95% or more with respect to heat rays, the scaly powder has an average area of the flat surface of 200 μm 2 or more, and the ratio of the average circumference to the average area is It is in being 0.3 or less.

本発明の遮熱構造物に形成されている遮熱塗膜は、熱線に対する反射率が95%以上の金属からなる平坦表面を有する鱗片状粉末を含んでいる。ここで、鱗片状粉末が互いに重なることなく密に被遮熱体を覆えば、その平坦表面で熱線が反射されて被遮熱体に到達しにくくなるため、1層の鱗片状粉末層を有する遮熱塗膜を形成することで高い遮熱効果が発現される。   The thermal barrier coating film formed on the thermal barrier structure of the present invention includes a scaly powder having a flat surface made of a metal having a reflectance of 95% or more with respect to heat rays. Here, if the scaly powder covers the heat shield densely without overlapping each other, the heat ray is reflected on the flat surface and it is difficult to reach the heat shield, thus having a single scaly powder layer. By forming a thermal barrier coating film, a high thermal barrier effect is exhibited.

しかし、鱗片状粉末が互いに重なることなく密に被遮熱体を覆うように遮熱塗料組成物を塗布することは困難である。そこで本発明の遮熱構造物によれば、鱗片状粉末は熱線に対する反射率が95%以上と高く、しかも平均面積が200μm2以上の平坦表面を有している。このような鱗片状粉末が遮熱塗膜の厚み方向に複数枚含まれて基体の表面を重なり合って覆っていることから高い遮熱効果が発現される。 However, it is difficult to apply the thermal barrier coating composition so that the scaly powders do not overlap each other so as to cover the target thermal shield densely. Therefore, according to the heat shielding structure of the present invention, the scaly powder has a high reflectivity with respect to heat rays of 95% or more and a flat surface with an average area of 200 μm 2 or more. Since a plurality of such scaly powders are included in the thickness direction of the thermal barrier coating and the surface of the substrate is overlapped and covered, a high thermal barrier effect is exhibited.

ここで、本発明にいう鱗片状粉末は一定の形状を有するものではなく、その形状には大小のばらつきを有する。このため本発明では、遮熱構造物に含有される鱗片状粉末を少なくとも30個測定したときの平坦表面の面積の平均値を平均面積とし、平均の周長を平均周長と呼ぶ。   Here, the scaly powder referred to in the present invention does not have a certain shape, and the shape has a large or small variation. For this reason, in this invention, the average value of the area of the flat surface when measuring at least 30 scale-like powder contained in a heat-shielding structure is made into an average area, and an average circumference is called an average circumference.

以下、本発明の遮熱構造物の作用を図1に基づいて説明する。図1はモデルとしての概念図である。したがって図1では鱗片状粉末が全て平行状態になっているが、これに限るものではなく、実際には平行ではないものも含まれる。   Hereinafter, the effect | action of the heat-insulating structure of this invention is demonstrated based on FIG. FIG. 1 is a conceptual diagram as a model. Accordingly, in FIG. 1, all of the scaly powders are in a parallel state, but the present invention is not limited to this, and actually includes powders that are not parallel.

遮熱塗膜1には鱗片状粒子2が20体積%以上含まれ、鱗片状粒子2の平坦表面20においては熱線が反射して外部へ放出されるが、鱗片状粒子2の平坦表面20と交差する外周表面21で反射した熱線は、必ずしも外部へ放出されず遮熱塗膜1の内部へ向かうものが存在する。遮熱塗膜1内部へ向かった熱線は、存在するビヒクル3に吸収され遮熱塗膜1の温度が上昇するので、遮熱特性が低下してしまう。すなわち平坦表面20と交差する外周表面21に凹凸が多いほど、つまり平坦表面20の面積に対して周長が長くなるほど乱反射する熱線量が多くなる。したがって外周表面21の凹凸を少なくするほど、つまり平坦表面20の面積に対して周長を短くするほど、ビヒクルに吸収される熱線を少なくでき、遮熱特性が向上すると考えた。   The thermal barrier coating 1 contains 20% by volume or more of the scaly particles 2 and heat rays are reflected and released to the outside on the flat surface 20 of the scaly particles 2, but the flat surface 20 of the scaly particles 2 Some of the heat rays reflected by the intersecting outer peripheral surfaces 21 are not necessarily emitted to the outside but are directed toward the inside of the thermal barrier coating 1. The heat rays directed toward the inside of the thermal barrier coating film 1 are absorbed by the existing vehicle 3 and the temperature of the thermal barrier coating film 1 rises, so that the thermal barrier properties are deteriorated. That is, as the outer peripheral surface 21 intersecting the flat surface 20 has more irregularities, that is, the longer the peripheral length with respect to the area of the flat surface 20, the more the heat dose that is diffusely reflected. Therefore, it was considered that the heat ray absorbed by the vehicle can be reduced and the heat shielding characteristics improved as the unevenness of the outer peripheral surface 21 is reduced, that is, the peripheral length is shortened with respect to the area of the flat surface 20.

そこで本発明の遮熱構造物に含まれる鱗片状粉末は、平坦表面の平均面積が200μm2以上であり、かつ平均面積に対する平均周長の比が0.3以下である。このような鱗片状粉末を用いることで、外周表面の凹凸が少なくなり、乱反射する熱線を低減することができるため、ビヒクルに吸収される熱線を少なくでき遮熱特性が向上する。 Therefore, the scaly powder contained in the heat shield structure of the present invention has an average area of a flat surface of 200 μm 2 or more and a ratio of the average circumference to the average area of 0.3 or less. By using such scaly powder, irregularities on the outer peripheral surface are reduced, and the heat rays that are irregularly reflected can be reduced, so that the heat rays absorbed by the vehicle can be reduced and the heat shielding characteristics are improved.

すなわち本発明の遮熱構造物によれば、遮熱塗膜が熱源からの輻射熱を反射するため、従来用いられている遮蔽板を廃止することができる。したがって自動車工業分野においては、遮蔽板の組付工数及び部品点数を大きく低減することができる。   That is, according to the heat shield structure of the present invention, since the heat shield coating reflects radiant heat from the heat source, the conventionally used shield plate can be eliminated. Therefore, in the automotive industry field, the number of steps for assembling the shielding plate and the number of parts can be greatly reduced.

また本発明の遮熱構造物によれば、遮熱塗膜は熱線に対して約95%以上の高い反射率を有しているので、遮熱塗膜側から加熱された場合熱線を効率よく反射することができ、遮熱塗膜の反対側から加熱された場合、あるいは遮熱構造物自体が熱を帯びている場合、遮熱塗膜からの放射熱がきわめて小さいという効果が発現される。例えば瓦などの屋根材の裏面側に遮熱塗膜を形成すれば、直射日光によって屋根材が熱くなった場合であってもその裏面側の雰囲気温度を低くすることができ、室内の温度上昇を抑制することができる。   Further, according to the heat shield structure of the present invention, the heat shield coating film has a high reflectance of about 95% or more with respect to the heat rays, so that the heat rays are efficiently applied when heated from the heat shield coating side. When it can be reflected and heated from the opposite side of the thermal barrier coating, or when the thermal barrier structure itself is heated, the effect is that the radiant heat from the thermal barrier coating is extremely small . For example, if a thermal barrier coating is formed on the back side of roofing materials such as tiles, the ambient temperature on the back side can be lowered even when the roofing material is heated by direct sunlight, and the temperature inside the room rises. Can be suppressed.

また本発明の遮熱塗料組成物は、例えば8μm程度の膜厚となるように塗布するだけで遮熱塗膜を形成することができる。したがってタレ止め性などを考慮する必要がないので塗料設計が容易であり、かつ塗料の使用量も少ないのできわめて経済的である。   In addition, the thermal barrier coating composition of the present invention can form a thermal barrier coating film by simply applying the thermal barrier coating composition to a thickness of, for example, about 8 μm. Therefore, since it is not necessary to consider sagging prevention properties, the paint design is easy and the amount of paint used is small, which is very economical.

本発明の遮熱構造物における作用を説明する遮熱塗膜の要部拡大断面図である。It is a principal part expanded sectional view of the thermal-insulation coating film explaining the effect | action in the thermal-insulation structure of this invention. 実施例において遮熱塗膜の遮熱特性を測定する方法を示す説明図である。It is explanatory drawing which shows the method of measuring the thermal-insulation characteristic of a thermal-insulation coating film in an Example.

本発明の遮熱構造物は、基体と、遮熱塗膜とからなる。基体としては特に制限されず、例えば自動車床下の排気管に対向する部位、エンジンルームのエンジンに対向する部品やダッシュパネルなど、熱源に対向して配置される被遮熱体、あるいは瓦などの屋根材、外壁材など表面は加熱されるけれども反対側へ熱を伝えるのが好まれない物体が例示される。また基体の材質は、金属、樹脂、ゴムなど特に制限されない。   The heat shield structure of the present invention comprises a substrate and a heat shield coating film. The substrate is not particularly limited, for example, a part facing the exhaust pipe under the automobile floor, a part facing the engine in the engine room, a dash panel, a heat shield to be placed facing the heat source, or a roof such as a tile. Examples include materials that are heated on the surface, such as wood and outer wall materials, but do not prefer to conduct heat to the opposite side. The material of the base is not particularly limited, such as metal, resin, rubber.

遮熱塗膜は、基体の熱源に対向する表面又は熱せられる表面と反対側表面に形成することができる。遮熱塗膜は鱗片状粉末を含有してなり、鱗片状粉末は、遮熱塗膜の厚さ方向に対して平坦表面が互いにその一部どうしが又は大部分どうしが重なるように配向して遮熱塗膜の厚さ方向に複数枚含まれ、遮熱塗膜の表面から透視したときに鱗片状粉末が互いに重なり合って被遮熱体の表面を覆っている。鱗片状粉末は、遮熱塗膜中に20体積%以上含まれ、遮熱塗膜の厚さ方向に3枚以上含まれていることが望ましい。このようにすることにより、塗膜を100μm以上のように厚くする必要がなく、通常の塗膜範囲である20μmでも十分効果を発揮できる。さらに10μm以下の例えば8μmという薄膜であっても高い遮熱効果が発現される。   The thermal barrier coating can be formed on the surface of the substrate facing the heat source or on the surface opposite to the surface to be heated. The thermal barrier coating film contains scale-like powder, and the scale-like powder is oriented so that the flat surfaces overlap each other partly or mostly with respect to the thickness direction of the thermal barrier coating film. A plurality of sheets are included in the thickness direction of the thermal barrier coating, and when viewed through the surface of the thermal barrier coating, scaly powders overlap each other and cover the surface of the thermal shield. It is desirable that the scaly powder is contained in an amount of 20% by volume or more in the thermal barrier coating film, and is contained in three or more sheets in the thickness direction of the thermal barrier coating film. By doing in this way, it is not necessary to thicken a coating film as 100 micrometers or more, and even if it is 20 micrometers which is a normal coating-film range, a sufficient effect can be exhibited. Further, even a thin film of 10 μm or less, for example, 8 μm, exhibits a high heat shielding effect.

遮熱塗膜は、本発明の遮熱塗料組成物から形成されているので、以下、遮熱塗料組成物の組成を説明することで遮熱塗膜の構成の説明に代える。   Since the thermal barrier coating film is formed from the thermal barrier coating composition of the present invention, hereinafter, the composition of the thermal barrier coating composition will be described to replace the description of the configuration of the thermal barrier coating film.

本発明の遮熱塗料組成物は、水性塗料、有機溶媒型塗料、粉体塗料のいずれの形態であってもよいが、溶媒又は分散媒を含む液状塗料であることが望ましい。粉体塗料では、鱗片状粉末の配向が困難となる場合がある。   The thermal barrier coating composition of the present invention may be in the form of an aqueous coating, an organic solvent-type coating, or a powder coating, but is preferably a liquid coating containing a solvent or a dispersion medium. In powder coating, it may be difficult to orient the scaly powder.

液状塗料の場合には、本発明の遮熱塗料組成物は、ビヒクルと、ビヒクルを溶解又は分散する液状媒体と、鱗片状粉末と、を主たる構成要素とする。ビヒクルとしては、アクリル樹脂、ポリ酢酸ビニル樹脂、塩化ビニル樹脂、塩化ビニリデン樹脂、熱可塑性エラストマなどの熱可塑性樹脂、BR、SBR、NBR、CR、EPDM、フッ素ゴムなどのゴム類など、溶媒又は分散媒が蒸発することで被膜を形成するものを用いることができる。場合によっては、ポリオールとイソシアネートからなるウレタン樹脂、フェノール樹脂、エポキシ樹脂、などの熱硬化性樹脂を用いることも可能である。できるだけ熱線の吸収率が低いものを選択することが望ましい。   In the case of a liquid paint, the thermal barrier coating composition of the present invention mainly comprises a vehicle, a liquid medium in which the vehicle is dissolved or dispersed, and a scaly powder. Vehicles include acrylic resins, polyvinyl acetate resins, vinyl chloride resins, vinylidene chloride resins, thermoplastic resins such as thermoplastic elastomers, BR, SBR, NBR, CR, EPDM, rubbers such as fluoro rubber, solvents or dispersions What forms a film when a medium evaporates can be used. In some cases, it is possible to use a thermosetting resin such as a urethane resin composed of a polyol and an isocyanate, a phenol resin, or an epoxy resin. It is desirable to select one having a heat ray absorption rate as low as possible.

ビヒクル及び液状媒体としては、水系エマルジョンを用いることが特に好ましい。水は揮発しにくいため塗布されたウェット塗膜中において鱗片状粉末がより配向し易くなり、膜厚が薄くても鱗片状粉末が被遮熱体の表面を覆い易くなる。この水系エマルジョンとしては、アクリルエマルジョン、シリコンアクリルエマルジョン、ウレタンエマルジョン、ウレタンアクリルエマルジョン、SBRエマルジョン、エポキシエマルジョンなどが例示され、また、水ガラス、コロイダルシリカ、シリケートなどの無機バインダも用途に応じて各種選択して用いることができる。   It is particularly preferable to use an aqueous emulsion as the vehicle and the liquid medium. Since water does not easily volatilize, the scaly powder is more easily oriented in the applied wet coating film, and the scaly powder easily covers the surface of the heat shield even when the film thickness is thin. Examples of water-based emulsions include acrylic emulsions, silicon acrylic emulsions, urethane emulsions, urethane acrylic emulsions, SBR emulsions, and epoxy emulsions. Various inorganic binders such as water glass, colloidal silica, and silicate can be selected depending on the application. Can be used.

鱗片状粉末は、少なくともその表面が熱線に対する反射率95%以上の金属から形成されたものであり、鱗片状の金属粉末あるいは、ガラス、雲母、タルクなどの鱗片状粉末表面に金属光輝層を形成した粉末などを用いることができる。   The scaly powder is formed from a metal having a surface reflectance of 95% or more at least on the surface of the heat, and a metallic glitter layer is formed on the scaly metal powder or on the scaly powder surface of glass, mica, talc, etc. Used powder can be used.

熱線に対する反射率が95%以上の金属としては、アルミニウム、金、銀、インジウム、銅などが例示される。中でも、波長4μmの遠赤外線の反射率が99%と高いアルミニウムが最も望ましい。なお熱線とは、近赤外線、中赤外線、遠赤外線をいい、一部の可視光も含まれる。また雲母、タルクなどの鱗片状粉末表面に金属光輝層を形成するには、蒸着法、スパッタリング法などのPVD法、あるいは無電解めっきなどのCVD法を用いて形成することができる。   Examples of the metal having a reflectance with respect to heat rays of 95% or more include aluminum, gold, silver, indium, and copper. Among these, aluminum having a reflectance of 99%, which is a far infrared ray having a wavelength of 4 μm, is most desirable. The heat ray means near infrared, middle infrared, or far infrared, and some visible light is also included. In addition, in order to form a metallic bright layer on the surface of a scaly powder such as mica and talc, it can be formed using a PVD method such as a vapor deposition method or a sputtering method, or a CVD method such as electroless plating.

またベースフィルムの表面に蒸着法などを用いて薄い金属層を形成し、ベースフィルムから金属層を剥離した後に粉砕して鱗片状粉末とすることもできる。   Alternatively, a thin metal layer may be formed on the surface of the base film by vapor deposition, and the metal layer may be peeled off from the base film and then pulverized to obtain a scaly powder.

鱗片状粉末の形態としては、アスペクト比(平均粒径/厚み)が10〜500の範囲にあることが望ましく、厚さは0.1μm〜5μmの範囲にあることが望ましい。アスペクト比が10より小さいと、塗布時に厚さ方向に重なるように配向しにくくなり、被遮熱体の表面を被覆しにくくなるため遮熱性能が低下する。またアスペクト比が500より大きくなると、スプレー塗布が困難となる。さらに鱗片状粉末の厚さが0.1μmより薄くなると、塗料製造時に破損してアスペクト比が小さくなる場合があり、5μmより厚くなると薄膜で塗布した場合に塗膜表面粗度が大きくなったり、塗膜中から鱗片状粉末が脱落する場合もある。   As for the form of the scaly powder, the aspect ratio (average particle diameter / thickness) is preferably in the range of 10 to 500, and the thickness is preferably in the range of 0.1 μm to 5 μm. When the aspect ratio is smaller than 10, it is difficult to align the layers so as to overlap in the thickness direction during coating, and it becomes difficult to cover the surface of the heat shield, so that the heat shielding performance is lowered. If the aspect ratio is greater than 500, spray coating becomes difficult. Furthermore, when the thickness of the scaly powder is less than 0.1 μm, the aspect ratio may be reduced due to damage during coating production, and when it is thicker than 5 μm, the coating film surface roughness increases when applied as a thin film, In some cases, the scaly powder falls off from the coating film.

鱗片状粉末は、塗料固形分中に20体積%以上含有されている。鱗片状粉末の含有量が20体積%より少ないと、遮熱塗膜を厚膜に形成しないと遮熱性能が不十分となり、タレが生じたりコストが高くなる。また鱗片状粉末の含有量が60体積%より多くなると、塗膜の成膜が困難となり被遮熱体から剥離する場合もある。   The scaly powder is contained in a solid content of the paint by 20% by volume or more. When the content of the scaly powder is less than 20% by volume, the heat shielding performance becomes insufficient unless the thermal barrier coating film is formed in a thick film, resulting in sagging and high cost. On the other hand, when the content of the scaly powder is more than 60% by volume, it is difficult to form a coating film and the film may be peeled off from the heat shield.

鱗片状粉末は平坦表面の平均面積が200μm2以上であり、かつ平均面積に対する平均周長の比が0.3以下である。平坦表面の平均面積が200μm2未満では、各鱗片状粉末の周長の合計がきわめて大きくなり、外周表面で乱反射する熱線が多くなるため、遮熱特性が低下する。また平均面積に対する平均周長の比が0.3を超えると、外周表面の凹凸が多くなって外周表面で乱反射する熱線が多くなるため、遮熱特性が低下する。なお平均面積の上限は特に規定されないが、平均面積が大きくなると粒径も大きくなり、塗膜表面の平滑性が低下したり、スプレーガンが詰まったりするようになるので、そうならない程度の平均面積が上限となる。 The scaly powder has an average area of a flat surface of 200 μm 2 or more and a ratio of the average circumference to the average area of 0.3 or less. When the average area of the flat surface is less than 200 μm 2 , the sum of the circumferences of the scaly powders becomes extremely large, and the heat rays that are irregularly reflected on the outer peripheral surface increase, so that the heat shielding characteristics are deteriorated. On the other hand, if the ratio of the average circumference to the average area is more than 0.3, the unevenness on the outer peripheral surface increases, and the heat rays that are irregularly reflected on the outer peripheral surface increase, so that the heat shielding characteristics are deteriorated. The upper limit of the average area is not particularly specified, but the average area is so large that the particle size increases as the average area increases, and the smoothness of the coating film surface decreases and the spray gun becomes clogged. Is the upper limit.

本発明の遮熱塗料には、ビヒクル及び鱗片状粉末以外の他の固形分は極力含まないことが望ましい。遮熱塗膜中に他の固形分が存在すると、他の固形分が熱を吸収するため遮熱塗膜の温度が高くなり、その熱が被遮熱体に伝熱される結果、遮熱性能が低下してしまう。しかしながら本発明の遮熱塗料は、タレ止め剤、シランカップリング剤、可塑剤などの各種助剤、有機・無機顔料、体質顔料などの顔料などを、遮熱特性に影響の無い範囲で含むこともできる。   The thermal barrier paint of the present invention preferably contains as little solid content as possible other than the vehicle and the flaky powder. If other solids are present in the thermal barrier coating, the other thermal solids absorb the heat and the temperature of the thermal barrier coating increases, and the heat is transferred to the thermal shield, resulting in thermal barrier performance. Will fall. However, the thermal barrier paint of the present invention contains various additives such as sagging inhibitors, silane coupling agents, plasticizers, pigments such as organic and inorganic pigments, extender pigments, etc. within a range that does not affect the thermal barrier properties. You can also.

本発明の遮熱塗料は、基体の表面に直接塗布してもよいし、基体の表面に下塗り塗膜や中塗り塗膜が形成されている場合には、その塗膜の表面に塗布することもできる。   The thermal barrier coating of the present invention may be applied directly to the surface of the substrate, or if an undercoat or intermediate coating is formed on the surface of the substrate, apply to the surface of the coating. You can also.

以下、実施例、比較例及び試験例により本発明の実施態様を具体的に説明する。   Hereinafter, embodiments of the present invention will be specifically described with reference to Examples, Comparative Examples, and Test Examples.

固形分:50質量%、Tg:−16℃、粒子径:220nmのスチレン・ブタジエンゴム(SBR)エマルジョン(「A7032」旭化成ケミカルズ社製)を50質量部と、厚さ0.5μmの鱗片状アルミニウム粉末(平坦表面の平均面積:3014μm2、平均周長:267μm)を60質量%含む水性アルミペースト30質量部とを混合し、ミキサーで撹拌して本実施例の遮熱塗料組成物を調製した。この遮熱塗料組成物には、全固形分中に鱗片状アルミニウム粉末が41.9質量%、体積比で20.7体積%含まれている。 50 parts by mass of styrene-butadiene rubber (SBR) emulsion (“A7032” manufactured by Asahi Kasei Chemicals) having a solid content of 50% by mass, Tg of −16 ° C., and a particle size of 220 nm, and scaly aluminum having a thickness of 0.5 μm 30 parts by mass of an aqueous aluminum paste containing 60% by mass of powder (average area of flat surface: 3014 μm 2 , average circumference: 267 μm) was mixed and stirred with a mixer to prepare a thermal barrier coating composition of this example. . This thermal barrier coating composition contains 41.9% by mass of a scaly aluminum powder in a total solid content of 20.7% by volume.

なお、この鱗片状アルミニウム粉末は、球状のアルミニウムアトマイズ粉末を扁平に潰して製造されたものである。また平均面積と平均周長は、画像解析によって30個の鱗片状アルミニウム粒子の面積と周長を計測して求めた。平均面積に対する平均周長の比は、0.09である。   This scaly aluminum powder is produced by flattening a spherical aluminum atomized powder. The average area and average circumference were determined by measuring the area and circumference of 30 scaly aluminum particles by image analysis. The ratio of the average circumference to the average area is 0.09.

厚さ0.5μm、平坦表面の平均面積:515μm2、平均周長:91μmの鱗片状アルミニウム粉末を用いたこと以外は実施例1と同様にして遮熱塗料組成物を調製した。この鱗片状アルミニウム粉末は、球状のアルミニウムアトマイズ粉末を扁平に潰して製造されたものであり、平均面積に対する平均周長の比は0.18である。 A thermal barrier coating composition was prepared in the same manner as in Example 1 except that scaly aluminum powder having a thickness of 0.5 μm, an average area of a flat surface: 515 μm 2 , and an average peripheral length: 91 μm was used. This scaly aluminum powder is produced by flattening a spherical aluminum atomized powder, and the ratio of the average circumference to the average area is 0.18.

厚さ0.5μm、平坦表面の平均面積:789μm2、平均周長:128μmの鱗片状アルミニウム粉末を用いたこと以外は実施例1と同様にして遮熱塗料組成物を調製した。この鱗片状アルミニウム粉末は、球状ではなく不定形のアルミニウムアトマイズ粉末を扁平に潰して製造されたものである。この鱗片状アルミニウム粉末の平均面積に対する平均周長の比は0.16である。 A thermal barrier coating composition was prepared in the same manner as in Example 1 except that scaly aluminum powder having a thickness of 0.5 μm, a flat surface average area: 789 μm 2 , and an average peripheral length: 128 μm was used. This scaly aluminum powder is produced by flattening a non-spherical, irregularly shaped aluminum atomized powder. The ratio of the average circumference to the average area of the scaly aluminum powder is 0.16.

厚さ0.5μm、平坦表面の平均面積:203μm2、平均周長:58μmの鱗片状アルミニウム粉末を用いたこと以外は実施例1と同様にして遮熱塗料組成物を調製した。この鱗片状アルミニウム粉末は、球状のアルミニウムアトマイズ粉末を扁平に潰して製造されたものである。この鱗片状アルミニウム粉末の平均面積に対する平均周長の比は0.29である。 A thermal barrier coating composition was prepared in the same manner as in Example 1 except that scaly aluminum powder having a thickness of 0.5 μm, an average area of a flat surface: 203 μm 2 , and an average circumference: 58 μm was used. This scaly aluminum powder is produced by flattening a spherical aluminum atomized powder. The ratio of the average circumference to the average area of the scaly aluminum powder is 0.29.

[比較例]
厚さ0.5μm、平坦表面の平均面積:133μm2、平均周長:64μmの鱗片状アルミニウム粉末を用いたこと以外は実施例1と同様にして遮熱塗料組成物を調製した。この鱗片状アルミニウム粉末は、球状ではなく不定形のアルミニウムアトマイズ粉末を扁平に潰して製造されたものである。この鱗片状アルミニウム粉末の平均面積に対する平均周長の比は0.48である。
[Comparative example]
A thermal barrier coating composition was prepared in the same manner as in Example 1 except that scaly aluminum powder having a thickness of 0.5 μm, an average area of a flat surface: 133 μm 2 , and an average circumference of 64 μm was used. This scaly aluminum powder is produced by flattening a non-spherical, irregularly shaped aluminum atomized powder. The ratio of the average circumference to the average area of the scaly aluminum powder is 0.48.

<試験例>
実施例1−4と比較例の遮熱塗料組成物に用いた鱗片状アルミニウム粉末の、平均面積(A)、平均周長(B)、平均面積(A)に対する平均周長(B)の比(B/A)、平坦表面が真円形と仮定したときに平均面積(A)から算出される仮定周長(C)、仮定周長(C)に対する平均周長(B)の比(B/C)をまとめて表1に示す。
<Test example>
Ratio of average circumference (B) to average area (A), average circumference (B), and average area (A) of the scaly aluminum powders used in the thermal barrier coating compositions of Example 1-4 and the comparative example (B / A), the assumed circumference (C) calculated from the average area (A) when the flat surface is assumed to be a true circle, the ratio of the average circumference (B) to the assumed circumference (C) (B / C) is summarized in Table 1.

予め電着塗膜が形成されたSPCC−SD鋼板(0.8×70×150mm)を用意し、エアスプレーにて実施例1−4と比較例の遮熱塗料組成物をそれぞれ塗布し(希釈なし)、130℃で20分間加熱した。これを2回繰り返して遮熱塗膜を形成した。遮熱塗膜の平均膜厚は、それぞれ20μmである。   SPCC-SD steel plates (0.8 × 70 × 150 mm) on which an electrodeposition coating was formed in advance were prepared, and each of the thermal barrier coating compositions of Examples 1-4 and Comparative Examples was applied by air spray (dilution) None) and heated at 130 ° C. for 20 minutes. This was repeated twice to form a thermal barrier coating. The average film thickness of the thermal barrier coating is 20 μm, respectively.

図2に示すように、370℃に加熱されたセラミック製ホットプレート4の表面から35mm離れた位置に、得られた試験片100を遮熱塗膜20がホットプレート4に対向するようにそれぞれ配置し、表面温度計5を用いて試験片100の遮熱塗膜20と反対側の表面温度をそれぞれ測定した。5分間未満の加熱時間でそれぞれ表面温度が略一定となり、その後はそれぞれその温度近傍で推移したので、試験開始後5分〜30分の表面温度の平均値を算出し結果を表1に示す。   As shown in FIG. 2, the obtained test specimens 100 are arranged at positions 35 mm away from the surface of the ceramic hot plate 4 heated to 370 ° C. so that the thermal barrier coating 20 faces the hot plate 4. Then, the surface temperature of the test piece 100 on the side opposite to the thermal barrier coating film 20 was measured using the surface thermometer 5. Since the surface temperature became substantially constant in each heating time of less than 5 minutes and then changed in the vicinity of the temperature, the average value of the surface temperature was calculated from 5 minutes to 30 minutes after the start of the test, and the results are shown in Table 1.

Figure 2014184673
Figure 2014184673

表1より、平均面積(A)が200μm2以上であり、かつ平均面積(A)に対する平均周長(B)の比(B/A)が0.3以下であれば、また、仮定周長に対する平均周長の比(B/C)が1.4以下であれば、表面温度が105℃以下となり、比較例に比べて高い遮熱特性が発現されていることがわかる。 From Table 1, if the average area (A) is 200 μm 2 or more and the ratio (B / A) of the average circumference (B) to the average area (A) is 0.3 or less, the assumed circumference If the ratio (B / C) of the average perimeter to 1.4 is 1.4 or less, the surface temperature is 105 ° C. or less, and it can be seen that a higher heat shielding characteristic is exhibited as compared with the comparative example.

さらに、平均面積が実施例1のように3000μm2を超えた大きな鱗片状粒子を用いることなく、平均面積が800μm2以下であっても、平坦表面が真円形と仮定したときに平均面積(A)から算出される仮定周長(C)に対する平均周長(B)の比(B/C)が1.3以下の鱗片状粉末を用いることで、比較例に比べて表面温度が低下していることがわかる。 Furthermore, without using a large scale-like particles having an average surface area exceeds 3000 .mu.m 2 as in Example 1, the average area is not more 800 [mu] m 2 or less, the average area when the flat surface is assumed true circle (A ) The ratio of the average circumference (B) to the assumed circumference (C) calculated from (B / C) is 1.3 or less, and the surface temperature is reduced compared to the comparative example. I understand that.

本発明の遮熱塗料組成物を基体の各種熱源に対向する表面、あるいは熱源と反対側の表面に塗布し乾燥させるだけで、本発明の遮熱構造物を形成することができる。本発明の遮熱構造物は、自動車分野、建築分野、家電分野など各種分野に適用することができる。   The heat-shielding structure of the present invention can be formed simply by applying the heat-shielding coating composition of the present invention to the surface of the substrate facing various heat sources or the surface opposite to the heat source and drying. The heat shield structure of the present invention can be applied to various fields such as the automobile field, the building field, and the home appliance field.

1:遮熱塗膜 2:鱗片状粒子 3:ビヒクル
20:平坦表面 21:外周表面
4:ホットプレート 100:試験片 5:表面温度計
1: Thermal barrier coating film 2: Scale-like particles 3: Vehicle
20: Flat surface 21: Outer peripheral surface 4: Hot plate 100: Test piece 5: Surface thermometer

Claims (5)

基体と、基体の表面に被覆された遮熱塗膜と、からなる遮熱構造物であって、
該遮熱塗膜は、平坦表面を有する鱗片状粉末を20体積%以上含有し、
該鱗片状粉末の少なくとも該平坦表面は熱線に対する反射率が95%以上の金属からなり、該鱗片状粉末は該平坦表面の平均面積が200μm2以上であり、かつ該平均面積に対する平均周長の比が0.3以下であり、該鱗片状粉末は該遮熱塗膜の厚み方向に複数枚含まれ、遮熱塗膜の表面から透視したときに鱗片状粉末が互いに重なり合って基体の表面を覆っていることを特徴とする遮熱構造物。
A thermal barrier structure comprising a substrate and a thermal barrier coating film coated on the surface of the substrate,
The thermal barrier coating film contains 20% by volume or more of scaly powder having a flat surface,
At least the flat surface of the scaly powder is made of a metal having a reflectance of 95% or more with respect to heat rays, the scaly powder has an average area of the flat surface of 200 μm 2 or more, and an average circumference with respect to the average area. The ratio is 0.3 or less, and a plurality of the scaly powders are included in the thickness direction of the thermal barrier coating, and when viewed through the surface of the thermal barrier coating, the scaly powders overlap each other to cover the surface of the substrate. A heat shield structure characterized by covering.
前記平坦表面が真円形と仮定したときに前記平均面積から算出される仮定周長に対する前記平均周長の比が1.4以下である請求項1に記載の遮熱構造物。   The heat shield structure according to claim 1, wherein a ratio of the average circumference to an assumed circumference calculated from the average area when the flat surface is assumed to be a true circle is 1.4 or less. 前記平均面積が800μm2以下の場合において、前記平坦表面が真円形と仮定したときに前記平均面積から算出される仮定周長に対する前記平均周長の比が1.3以下である請求項1に記載の遮熱構造物。 The ratio of the average circumference to the assumed circumference calculated from the average area when the flat surface is assumed to be a perfect circle when the average area is 800 µm 2 or less is 1.3 or less. The heat shield structure described. 前記遮熱塗膜は膜厚が20μm以下である請求項1〜3のいずれかに記載の遮熱構造物。   The thermal barrier structure according to claim 1, wherein the thermal barrier coating film has a thickness of 20 μm or less. 請求項1〜4のいずれかに記載の遮熱構造物を製造するのに用いられる遮熱塗料組成物であって、ビヒクルと、平坦表面を有する鱗片状粉末とを含有してなり、
該鱗片状粉末は全固形分中に20体積%以上含まれ、該鱗片状粉末の少なくとも該平坦表面は熱線に対する反射率が95%以上の金属からなり、該鱗片状粉末は該平坦表面の平均面積が200μm2以上であり、かつ該平均面積に対する平均周長の比が0.3以下であることを特徴とする遮熱塗料組成物。
A thermal barrier coating composition used for manufacturing the thermal barrier structure according to any one of claims 1 to 4, comprising a vehicle and a scaly powder having a flat surface,
The scaly powder is contained in a total solid content of 20% by volume or more, and at least the flat surface of the scaly powder is made of a metal having a reflectance of 95% or more with respect to heat rays, and the scaly powder is an average of the flat surface. A thermal barrier coating composition having an area of 200 μm 2 or more and a ratio of an average circumference to the average area of 0.3 or less.
JP2013061841A 2013-03-25 2013-03-25 Thermal barrier structure and thermal barrier coating composition Active JP5976578B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2013061841A JP5976578B2 (en) 2013-03-25 2013-03-25 Thermal barrier structure and thermal barrier coating composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2013061841A JP5976578B2 (en) 2013-03-25 2013-03-25 Thermal barrier structure and thermal barrier coating composition

Publications (2)

Publication Number Publication Date
JP2014184673A true JP2014184673A (en) 2014-10-02
JP5976578B2 JP5976578B2 (en) 2016-08-23

Family

ID=51832700

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2013061841A Active JP5976578B2 (en) 2013-03-25 2013-03-25 Thermal barrier structure and thermal barrier coating composition

Country Status (1)

Country Link
JP (1) JP5976578B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017140748A (en) * 2016-02-09 2017-08-17 株式会社エフコンサルタント Laminate, and formation method of laminate
JP6209806B1 (en) * 2017-01-09 2017-10-11 株式会社ブイオーシーダイレクト Building
JP2018193441A (en) * 2017-05-15 2018-12-06 輝明 嘉納 Thermal radiation/insulation fireproof coating material and combination of thermal radiation/insulation fireproof coating material with additive
JP2020019903A (en) * 2018-08-01 2020-02-06 日本ペイント・インダストリアルコ−ティングス株式会社 Low infrared radiation coating composition

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011118347A (en) * 2009-11-06 2011-06-16 Fujifilm Corp Heat-ray shielding material
JP2012066578A (en) * 2010-08-24 2012-04-05 Aisin Chemical Co Ltd Heat shield structure and heat shield coating composition
JP2013036383A (en) * 2011-08-08 2013-02-21 Aisin Chemical Co Ltd Heat insulation sound absorption material, method of manufacturing the same and heat insulation sound absorption structure

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011118347A (en) * 2009-11-06 2011-06-16 Fujifilm Corp Heat-ray shielding material
JP2012066578A (en) * 2010-08-24 2012-04-05 Aisin Chemical Co Ltd Heat shield structure and heat shield coating composition
JP2013036383A (en) * 2011-08-08 2013-02-21 Aisin Chemical Co Ltd Heat insulation sound absorption material, method of manufacturing the same and heat insulation sound absorption structure

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017140748A (en) * 2016-02-09 2017-08-17 株式会社エフコンサルタント Laminate, and formation method of laminate
JP6209806B1 (en) * 2017-01-09 2017-10-11 株式会社ブイオーシーダイレクト Building
JP2018111939A (en) * 2017-01-09 2018-07-19 株式会社ブイオーシーダイレクト Architectural structure
JP2018193441A (en) * 2017-05-15 2018-12-06 輝明 嘉納 Thermal radiation/insulation fireproof coating material and combination of thermal radiation/insulation fireproof coating material with additive
JP2020019903A (en) * 2018-08-01 2020-02-06 日本ペイント・インダストリアルコ−ティングス株式会社 Low infrared radiation coating composition

Also Published As

Publication number Publication date
JP5976578B2 (en) 2016-08-23

Similar Documents

Publication Publication Date Title
JP5280498B2 (en) Thermal barrier structure and thermal barrier coating composition
JP5976578B2 (en) Thermal barrier structure and thermal barrier coating composition
CN101531855B (en) Composite metal hollow medium microsphere insulating coating
JP3794824B2 (en) Thermal barrier paint
WO2004076173A1 (en) Reflector-use precoat metal plate
JP2008238814A (en) Coated steel sheet, processed article, and panel for flat screen television
WO2015064218A1 (en) Black coated metal plate
CN102844629B (en) For the manufacture method of the absorber coating of solar energy heating, such coating and its application
JP4653386B2 (en) Surface-treated metal plate with excellent heat resistance and casing using the same
JP4844295B2 (en) Painted steel sheets, processed products, and thin TV panels
CN102732145B (en) Bi-component polyurethane coating with low infrared emissivity and preparation method thereof
JP4369761B2 (en) Heating element cover excellent in heat absorption, surface-treated metal plate therefor, and applications thereof
JP2006192716A (en) Surface-treated metal, its manufacturing method and surface treatment liquid
JP4730245B2 (en) Painted steel sheets, processed products, and flat panel TVs
JP6466077B2 (en) Painted metal plate
JP2014145027A (en) Coating material composition excellent in heat shield
CN108912901A (en) A kind of heat insulation coating and preparation method thereof
JP6540825B2 (en) Coated metal plate
JP2002264254A (en) Coated metal sheet with superb heat shielding properties and manufacturing method therefor
JP6343505B2 (en) Exterior materials for construction
CN110684416B (en) Preparation method of water-based intelligent heat-insulating and heat-dissipating coating
CN116042071A (en) Infrared stealth coating and preparation method thereof
JP2022184445A (en) Coated metal plate and coating material
TW201111166A (en) Precoated metal plate
KR101467091B1 (en) Bio color steel sheet with radiating far infrared and method for manufacturing the same

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20140905

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20150430

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20150507

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20151124

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20160113

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20160414

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20160607

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20160623

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20160720

R150 Certificate of patent or registration of utility model

Ref document number: 5976578

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250