JP2012066578A - Heat shield structure and heat shield coating composition - Google Patents
Heat shield structure and heat shield coating composition Download PDFInfo
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Abstract
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.
本発明は上記した事情に鑑みてなされたものであり、遮熱塗膜の膜厚が２０μｍ程度の一般的な膜厚であっても十分な遮熱特性を発揮できる遮熱構造物を提供することを解決すべき課題とする。 The present invention has been made in view of the above circumstances, and provides a thermal barrier structure capable of exhibiting sufficient thermal barrier characteristics even if the thermal barrier coating film has a general film thickness of about 20 μm. This is a problem to be solved.
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、基体の表面に被覆された遮熱塗膜と、からなる遮熱構造物であって、
遮熱塗膜は、鱗片状粉末を含有してなり、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、遮熱塗膜の厚さ方向に対して平坦表面が互いに平行に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 coated on the surface of the base,
The thermal barrier coating film contains scale-like powder, and at least the flat surface of the scale-like powder is made of a metal having a reflectance of 95% or more for heat rays,
The scaly powder is oriented so that the flat surfaces overlap each other in parallel to the thickness direction of the thermal barrier coating, and is included in the thickness direction of the thermal barrier coating, and is seen through from the surface of the thermal barrier coating The scaly powders overlap each other and cover the surface of the substrate.
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、鱗片状粉末とを含有してなり、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％以上の金属からなることにある。 Further, 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, and at least a flat surface of the flaky powder has a heat ray reflectivity of 95% or more. It consists of metal.
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。鱗片状粉末を含む液状塗料を塗布すると、鱗片状粉末はアスペクト比が高いため、その平坦表面が厚さ方向に対して傾きを有し互いに平行となるように配向する。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. When a liquid paint containing scaly powder is applied, since the scaly powder has a high aspect ratio, the flat surfaces are oriented so that the flat surfaces are inclined and parallel to each other in the thickness direction. 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、遮熱塗膜は厚さ方向に複数枚の鱗片状粉末を含んでいる。このように構成したことで、塗布時のばらつきを考慮しても、また遮熱塗膜の膜厚が２０μｍ以下と薄くても、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の大部分を覆うようになり、鱗片状粉末の平坦表面が熱線を反射することで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 shield structure of the present invention, the heat shield coating film includes a plurality of scaly powders in the thickness direction. Even if the variation at the time of application is taken into account, and the film thickness of the thermal barrier coating is as thin as 20 μm or less, the scaly powders are mutually seen when viewed through the surface of the thermal barrier coating. It overlaps and covers most of the surface of the heat shield, and the flat surface of the scaly powder reflects the heat rays, so that a high heat shielding effect is expressed.
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.
入射した単位エネルギー「１」に対して、反射、吸収、透過の起こる割合を、それぞれ反射率、吸収率、透過率といい、次の関係が成り立つ。 For the incident unit energy “1”, the ratios at which reflection, absorption, and transmission occur are referred to as reflectance, absorption, and transmittance, respectively, and the following relationship holds.
反射率＋吸収率＋透過率＝１
またキルヒホッフの法則より、吸収率＝放射率となる。
Reflectivity + absorbance + transmittance = 1
Further, from Kirchhoff's law, the absorptivity = emissivity.
通常の不透明な物質なら透過率≒０であるので、放射率と反射率は、以下の関係式が成り立つ。 Since the transmittance of an ordinary opaque substance is 0, the following relational expression holds between the emissivity and the reflectance.
放射率≒１−反射率
すなわち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、放射率は約５％以下となり、放射特性がきわめて低い。したがって本発明の遮熱構造物が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。
Emissivity ≈ 1-reflectance That is, according to the heat shield structure of the present invention, the heat shield coating film has a high reflectivity of about 95% or more with respect to heat rays, so the emissivity is about 5% or less. The radiation characteristics are extremely low. Therefore, when the thermal barrier structure of the present invention is heated from the opposite side of the thermal barrier coating, or when the thermal barrier structure itself is heated, the effect that the radiant heat from the thermal barrier coating is extremely small is obtained. Expressed. 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平行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。なお「平坦表面が互いに平行に重なるように配向する」とは、平坦表面が平行な状態で重なるように配向しているものだけでなく、平行に近い状態で重なるように配向しているものも含んでいることを意味している。 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 are parallel to each other in the thickness direction of the thermal barrier coating layer, or some of them overlap each other. A plurality of sheets are included in the thickness direction of the thermal barrier coating film, and when viewed through the surface of the thermal barrier coating film, the scaly powders overlap each other to cover the surface of the thermal shield body. “Orienting so that flat surfaces overlap in parallel” means not only those in which flat surfaces are aligned in a parallel state but also those in which they are aligned so as to overlap in a state close to parallel. It means that it contains.
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で、遮熱塗膜が８μｍという薄膜であっても高い遮熱効果が発現される。 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, even if a heat-shielding coating film is a thin film of 8 micrometers, a high heat-shielding effect is expressed.
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。できるだけ赤外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 as low an infrared absorption rate 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 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ことが望ましい。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。 It is desirable that the scaly powder is contained in an amount of 20% by volume or more in the coating solid content. 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.
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８３．３質量部と、径：５４μｍ、厚さ：０．５μｍの鱗片状アルミニウム粉末を６０質量％含む水性アルミペースト（「Hydrolan-212」エカルト社製）を１６．７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１９．４質量％、体積比で８．０体積％含まれている。 Solid content: 50% by mass, Tg: -16 ° C., particle size: 220 nm styrene-butadiene rubber (SBR) emulsion (“A7032” manufactured by Asahi Kasei Chemicals), 83.3 parts by mass, diameter: 54 μm, thickness: 16.7 parts by mass of an aqueous aluminum paste (“Hydrolan-212” manufactured by Ecart Co., Ltd.) containing 60% by mass of 0.5 μm of flaky aluminum powder is mixed with agitation and stirred with a mixer to form the thermal barrier coating composition of this example. A product was prepared. This thermal barrier coating composition contains 19.4% by mass of scaly aluminum powder in a total solid content, and 8.0% by volume.
実施例１と同様のＳＢＲエマルジョンを７１．４質量部と、実施例１と同様の水性アルミペーストを２８．６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３２．４質量％、体積比で１４．８体積％含まれている。 71.4 parts by mass of the same SBR emulsion as in Example 1 and 28.6 parts by mass of the same aqueous aluminum paste as in Example 1 were mixed and stirred with a mixer to produce the thermal barrier coating composition of this example. Was prepared. This thermal barrier coating composition contains 32.4% by mass of scale-like aluminum powder in the total solid content, and 14.8% by volume.
実施例１と同様のＳＢＲエマルジョンを６２．５質量部と、実施例１と同様の水性アルミペーストを３７．５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。
[比較例１]
実施例１と同様のＳＢＲエマルジョンのみを比較例１の遮熱塗料組成物を調製した。この遮熱塗料組成物には、鱗片状アルミニウム粉末が含まれていない。
[比較例２]
実施例１と同様のＳＢＲエマルジョンを２２．５質量部と、実施例１と同様の水性アルミペーストを７７．５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８０．５質量％、体積比で６０．０体積％含まれている。
＜試験例１＞
実施例１−３と比較例１−２の遮熱塗料組成物の構成を表１に示す。
62.5 parts by mass of the same SBR emulsion as in Example 1 and 37.5 parts by mass of the same aqueous aluminum paste as in Example 1 were mixed and stirred with a mixer to obtain the thermal barrier coating composition of this example. Was prepared. 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.
[Comparative Example 1]
The thermal barrier coating composition of Comparative Example 1 was prepared using only the same SBR emulsion as in Example 1. This thermal barrier coating composition does not contain scaly aluminum powder.
[Comparative Example 2]
22.5 parts by mass of the same SBR emulsion as in Example 1 and 77.5 parts by mass of the same aqueous aluminum paste as in Example 1 were mixed and stirred with a mixer to obtain the thermal barrier coating composition of this example. Was prepared. This thermal barrier coating composition contains 80.5% by mass of scaly aluminum powder in a total solid content, and 60.0% by volume in a volume ratio.
<Test Example 1>
Table 1 shows the configurations of the thermal barrier coating compositions of Example 1-3 and Comparative Example 1-2.
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１−３と比較例１−２の遮熱塗料組成物をそれぞれ塗布し（希釈なし）、１３０℃で２０分間加熱してそれぞれ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。なお比較例２の遮熱塗料組成物は成膜しなかったので、試験例から除外した。 SPCC-SD steel plate (0.8 × 70 × 150 mm) on which an electrodeposition coating was formed in advance was prepared, and the thermal barrier coating compositions of Example 1-3 and Comparative Example 1-2 were respectively applied by air spray. (No dilution) and heated at 130 ° C. for 20 minutes to form respective thermal barrier coatings. The average film thickness of the thermal barrier coating is 20 μm, respectively. Since the thermal barrier coating composition of Comparative Example 2 did not form a film, it was excluded from the test examples.
図１に示すように、３７０℃に加熱されたホットプレート１の表面から３５ｍｍ離れた位置に、遮熱塗膜２０がホットプレート１に対向するように得られた試験片２をそれぞれ配置し、表面温度計３を用いて試験片２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分の平均温度を算出し結果を表２及び図２に示す。
As shown in FIG. 1, the
表２及び図２から、鱗片状アルミニウム粉末を８．０体積％含むだけで表面温度が急激に低下し、鱗片状アルミニウム粉末の含有量が増えるにつれて表面温度が徐々に低下していることがわかる。すなわち鱗片状アルミニウム粉末を８．０体積％以上含むことで、高い遮熱効果が発現していることが明らかである。
＜試験例２＞
試験例１と同様の予め電着塗膜が形成されたＳＰＣＣ−ＳＤ鋼板を用意し、実施例３の遮熱塗料組成物をエアスプレーにて乾燥膜厚が８μｍ、２０μｍ、５０μｍ、８０μｍとなるようにそれぞれ塗布し、１３０℃で２０分間加熱してそれぞれ遮熱塗膜を形成した。得られた試験片を用い、試験例１と同様にして試験片の遮熱塗膜と反対側の表面温度を測定した。試験開始後５分〜３０分の平均温度を算出し結果を表３に示す。
From Table 2 and FIG. 2, it can be seen that the surface temperature is drastically lowered only by containing 8.0% by volume of the scaly aluminum powder, and the surface temperature gradually decreases as the content of the scaly aluminum powder increases. . That is, it is clear that a high heat-shielding effect is manifested by containing not less than 8.0 vol% of scaly aluminum powder.
<Test Example 2>
The same SPCC-SD steel plate with an electrodeposition coating film as in Test Example 1 was prepared, and the dry film thickness was 8 μm, 20 μm, 50 μm, and 80 μm by air spraying the thermal barrier coating composition of Example 3. Each was coated and heated at 130 ° C. for 20 minutes to form a thermal barrier coating. Using the obtained test piece, the surface temperature of the test piece opposite to the thermal barrier coating film was measured in the same manner as in Test Example 1. The average temperature from 5 minutes to 30 minutes after the start of the test is calculated and the results are shown in Table 3.
表３から明らかなように、遮熱塗膜の膜厚に関わらず表面温度は略一定であり、鱗片状アルミニウム粉末を２０．７体積％含む遮熱塗膜は８μｍという薄い膜厚でも十分な遮熱特性を有している。 As apparent from Table 3, the surface temperature is substantially constant regardless of the thickness of the thermal barrier coating, and a thermal barrier coating containing 20.7% by volume of scaly aluminum powder is sufficient even with a thin thickness of 8 μm. Has heat shielding properties.
ここで、試験例２における膜厚８μｍの遮熱塗膜中の鱗片状アルミニウム粉末の積層枚数は、膜厚×鱗片状アルミニウム粉末の含有量（体積％）／鱗片状アルミニウム粉末の厚さで算出され、８×０．２０７／０．５≒３．３となる。すなわち鱗片状アルミニウム粉末が遮熱塗膜の厚さ方向に平均して３枚以上積層されていることで、遮熱塗膜が８μｍという薄い膜厚でも十分な遮熱特性を発現している。 Here, the number of scale-like aluminum powders laminated in the thermal barrier coating film having a film thickness of 8 μm in Test Example 2 is calculated by film thickness × content (volume%) of scale-like aluminum powder / thickness of scale-like aluminum powder. 8 × 0.207 / 0.5≈3.3. That is, the scaly aluminum powder is laminated in an average of three or more in the thickness direction of the thermal barrier coating film, so that the thermal barrier coating film exhibits sufficient thermal barrier characteristics even with a thin film thickness of 8 μm.
すなわち図３に拡大断面図を示すように、試験例２における膜厚８μｍの遮熱塗膜５には鱗片状のアルミニウム粉末５０が厚さ方向に重なるように配向した状態で含まれ、厚さ方向に平均して約３．３枚のアルミニウム粉末５０が積層されている。したがって遮熱塗膜５の表面から透視したときに、アルミニウム粉末５０が互いに平行に重なり合って鋼板４の表面を覆っている。したがって熱源からの輻射熱は、遮熱塗膜５に含まれる鱗片状のアルミニウム粉末５０によって反射されるため、鋼板４への伝熱を抑制することができる。
That is, as shown in an enlarged cross-sectional view in FIG. 3, the thermal
片面に施釉された素焼きの陶板（厚さ１５ｍｍ）を用意し、その裏面に実施例３の遮熱塗料組成物をエアスプレーにて乾燥膜厚が８μｍとなるように塗装し、１３０℃で２０分間加熱して遮熱塗膜を形成した。
[比較例３]
実施例４と同様の陶板を用意し、その裏面にショットピ−ニング法によって厚さ３μｍの錫膜を形成した。
[比較例４]
実施例４と同様の陶板を比較例４とした。裏面は、何もコートされていない素焼き面である。
＜試験例３＞
図４に示すように、各陶板６の施釉表面から１６０ｍｍの距離だけ離れた位置から赤外ランプ７を照射し、照射開始から３０分後に遮熱塗膜７の表面から５０ｍｍの距離にある測定点における雰囲気温度を測定した。結果を図５に示す。
An unglazed porcelain plate (thickness 15 mm) glazed on one side is prepared, and the thermal barrier coating composition of Example 3 is applied to the back side by air spray so that the dry film thickness is 8 μm, and is 20 at 130 ° C. A thermal barrier coating was formed by heating for minutes.
[Comparative Example 3]
A porcelain plate similar to that in Example 4 was prepared, and a tin film having a thickness of 3 μm was formed on the back surface thereof by a shot peening method.
[Comparative Example 4]
A ceramic plate similar to that in Example 4 was designated as Comparative Example 4. The back surface is an unglazed surface on which nothing is coated.
<Test Example 3>
As shown in FIG. 4, the
図５より、実施例４の遮熱構造物によれば、何も塗布していない比較例４に比べて雰囲気温度が約８．５℃低くなることがわかり、きわめて低い放射特性を示すことが明らかである。また比較例３に比べても低放射特性を示すこともわかり、錫膜を形成するより簡単な方法で安価に、低放射特性を示す遮熱塗膜を形成することができる。 From FIG. 5, it can be seen that according to the heat shield structure of Example 4, the ambient temperature is about 8.5 ° C. lower than that of Comparative Example 4 in which nothing is applied, and extremely low radiation characteristics are exhibited. it is obvious. Moreover, it turns out that a low radiation characteristic is also shown compared with the comparative example 3, and the thermal barrier coating film which shows a low radiation characteristic can be formed cheaply by a simpler method of forming a tin film.
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.
４：鋼板 ５：遮熱塗膜 ５０：アルミニウム粉末（鱗片状粉末） 4: Steel plate 5: Thermal barrier coating 50: Aluminum powder (flaky powder)
Claims (6)
該遮熱塗膜は、鱗片状粉末を含有してなり、該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、
該鱗片状粉末は、該遮熱塗膜の厚さ方向に対して該平坦表面が互いに平行に重なるように配向して該遮熱塗膜の厚さ方向に複数枚含まれ、該遮熱塗膜の表面から透視したときに該鱗片状粉末が互いに重なり合って該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 a scaly powder, and at least a 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 is oriented so that the flat surfaces overlap each other in parallel to the thickness direction of the thermal barrier coating, and is included in the thickness direction of the thermal barrier coating. A heat-shielding structure characterized in that the scaly powders overlap each other and cover the surface of the substrate when viewed through the surface of the film.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014184673A (en) * | 2013-03-25 | 2014-10-02 | Aisin Chemical Co Ltd | Thermal insulation structure and thermal insulation coating composition |
| JP2014210428A (en) * | 2013-04-04 | 2014-11-13 | 日鉄住金鋼板株式会社 | Coated metal plate |
| JP2015124360A (en) * | 2013-12-27 | 2015-07-06 | 大日本塗料株式会社 | Far infrared reflective coating material, formation method of coating film, and coated article |
| JP2015164765A (en) * | 2014-03-03 | 2015-09-17 | アイシン化工株式会社 | Heat insulation material and method of producing the same |
| WO2016031236A1 (en) * | 2014-08-27 | 2016-03-03 | セーレン株式会社 | Heat-shielding roofing underlayment material |
| CN106183122A (en) * | 2016-07-07 | 2016-12-07 | 无锡市华东电力设备有限公司 | A kind of Heat-insulation metal material |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH054072A (en) * | 1991-01-22 | 1993-01-14 | Noboru Matsuda | Heat insulating paint |
| JPH06298819A (en) * | 1993-04-09 | 1994-10-25 | Showa Denko Kk | Photocurable composition containing metallic pigment |
| JPH09109306A (en) * | 1995-10-17 | 1997-04-28 | Pajiero Seizo Kk | Top for vehicle |
| JP2000212475A (en) * | 1999-01-26 | 2000-08-02 | Katsuo Miki | Solar heat shielding paint |
| JP2006347542A (en) * | 2006-07-14 | 2006-12-28 | Nippon Paint Co Ltd | Interior material for automobile |
-
2011
- 2011-08-01 JP JP2011168027A patent/JP5280498B2/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH054072A (en) * | 1991-01-22 | 1993-01-14 | Noboru Matsuda | Heat insulating paint |
| JPH06298819A (en) * | 1993-04-09 | 1994-10-25 | Showa Denko Kk | Photocurable composition containing metallic pigment |
| JPH09109306A (en) * | 1995-10-17 | 1997-04-28 | Pajiero Seizo Kk | Top for vehicle |
| JP2000212475A (en) * | 1999-01-26 | 2000-08-02 | Katsuo Miki | Solar heat shielding paint |
| JP2006347542A (en) * | 2006-07-14 | 2006-12-28 | Nippon Paint Co Ltd | Interior material for automobile |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014184673A (en) * | 2013-03-25 | 2014-10-02 | Aisin Chemical Co Ltd | Thermal insulation structure and thermal insulation coating composition |
| JP2014210428A (en) * | 2013-04-04 | 2014-11-13 | 日鉄住金鋼板株式会社 | Coated metal plate |
| JP2015124360A (en) * | 2013-12-27 | 2015-07-06 | 大日本塗料株式会社 | Far infrared reflective coating material, formation method of coating film, and coated article |
| JP2015164765A (en) * | 2014-03-03 | 2015-09-17 | アイシン化工株式会社 | Heat insulation material and method of producing the same |
| WO2016031236A1 (en) * | 2014-08-27 | 2016-03-03 | セーレン株式会社 | Heat-shielding roofing underlayment material |
| JPWO2016031236A1 (en) * | 2014-08-27 | 2017-06-22 | セーレン株式会社 | Thermal insulation under the roof |
| CN106183122A (en) * | 2016-07-07 | 2016-12-07 | 无锡市华东电力设备有限公司 | A kind of Heat-insulation metal material |
| WO2019225487A1 (en) * | 2018-05-24 | 2019-11-28 | 大倉工業株式会社 | Radiant heat reflective film and automobile interior material |
| CN112867633A (en) * | 2018-05-24 | 2021-05-28 | 大仓工业株式会社 | Radiant heat reflective film and interior material for automobile |
| JPWO2019225487A1 (en) * | 2018-05-24 | 2021-06-17 | 大倉工業株式会社 | Radiant heat reflective film and interior materials for automobiles |
| JP7108691B2 (en) | 2018-05-24 | 2022-07-28 | 大倉工業株式会社 | Radiant heat reflection film and automotive interior materials |
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