JP4375938B2 - Aluminum building material with infrared reflection function - Google Patents
Aluminum building material with infrared reflection function Download PDFInfo
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- JP4375938B2 JP4375938B2 JP2002088465A JP2002088465A JP4375938B2 JP 4375938 B2 JP4375938 B2 JP 4375938B2 JP 2002088465 A JP2002088465 A JP 2002088465A JP 2002088465 A JP2002088465 A JP 2002088465A JP 4375938 B2 JP4375938 B2 JP 4375938B2
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Description
【０００１】
【発明の属する技術分野】
本発明は、サッシ、カーテンウォール、屋根板等のアルミニウム建材で、赤外線反射機能を有するアルミニウム建材に関するものである。
【０００２】
【従来の技術】
アルミニウム建材のうちアルミニウムサッシは図２にも示すように、アルミサッシは複数のアルミ型材で組み立てられている。図２中、１０はサッシ枠、１１は障子枠、１２は障子枠１１に嵌め込まれるガラスで、このようなサッシ枠１０や障子枠１１はすべてアルミ型材で組み立てられる。１３は建物躯体、１４はシーリング材である。
【０００３】
前記アルミ型材はアルミニウム合金の押出し形材から作られ、アルミ表面は耐食性に優れた処理がされている。
【０００４】
例えば、長尺アルミサッシ形材の縦吊り表面処理工程として、前処理、陽極酸化（アルミニウムを陽極とし、電気化学的な処理により表面に酸化皮膜を生成する）、電解着色（アルミニウム陽極酸化皮膜を電気化学的に処理し、金属や金属酸化物などを皮膜中に析出し着色した皮膜を生成させる）、湯洗の各工程の後、塗料槽を配置し、塗装を行う。
【０００５】
【発明が解決しようとする課題】
アルミニウムサッシの素材であるアルミニウム自体は熱伝導率が高＜、木材に比ベて熱を伝え、熱く成りやすい。
【０００６】
また、アルミサッシに塗装を施す場合に、この塗装を太陽熱を遮熱する塗料とした場合に当該塗料は白系が中心の着色塗料のみであり、アルミの有する金属感を生かした表面処理が出来なかった。
【０００７】
本発明の目的は前記従来例の不都合を解消し、塗装の透明性を保持しできるので、アルミの金属感を生かしたまま太陽熱を遮蔽して温度上昇を抑えることができる赤外線反射機能を有するアルミニウム建材を提供することにある。
【０００８】
【問題を解決するための手段】
本発明は前記目的を達成するため、アルミニウムまたはアルミニウム合金の表面に、陽極酸化皮膜または化成皮膜を生成させ、その上に、顔料とビヒクルとを主成分とし、顔料は近赤外線領域で反射を示し、ＪＩＳ Ａ５７５９に定義される日射反射率が３０％以上で、可視光線透過率を２０％以上になるよう、有機系または有機系および無機系の下記太陽熱遮蔽顔料αを分散した太陽熱遮蔽塗料を３μｍ〜３０μｍの膜厚で塗布したことを要旨とするものである。
太陽熱遮蔽顔料α：粒子径が０．０１μｍ〜１０μｍの範囲において、中心粒子径を定め、中心粒子径を持つ粒子が、分散顔料全体の２０％以上を占め、粒度分布範囲は、中心の粒子径よりプラスマイナス８０％以内に分布し、塗料の樹脂組成物とこの太陽熱遮蔽顔料との固形物量比は、１００／０．５〜１００／２０である。
【０００９】
請求項１記載の本発明によれば、表面に日射反射率の高い顔料を分散した遮蔽塗料を３μｍ〜３０μｍ塗布したので、これが太陽熱遮蔽塗料として太陽光を反射することで、従来のクリアー塗装と比較して、アルミニウム建材の表面温度上昇を抑えられることができる。
【００１０】
しかも、アルミニウムまたはアルミニウム合金の表面に、陽極酸化皮膜または化成皮膜を生成させ、その上に日射反射率の高い顔料を分散した遮熱塗料を塗布したもので、アルミニウムまたはアルミニウム合金の表面に直接塗布した場合と比べて密着性は良好であり、また、陽極酸化皮膜または化成皮膜はアルミ表面に皮膜を形成する事で防食性の向上も得られる。
【００１１】
また、前記太陽熱遮蔽塗料は太陽熱遮蔽顔料を０．０１μｍ〜１０μｍに分散し、遮熱塗料の樹脂組成物と太陽熱遮蔽顔料との固形物重量比は、１００／０．５〜１００／２０で、遮熱塗料を３μｍ〜１０μｍの膜厚で塗装する。太陽熱遮蔽顔料を０．０１μｍ〜１０μｍに分散してあるので、塗膜は透明またはやや濁る程度で、アルミの素材観を維持しながら、遮熱効果がある。
【００１２】
前記作用に加えて、太陽熱遮蔽塗料として、日射反射率が一定範囲内にある顔料を用いて簡単に遮熱性を向上させることができる。
【００１３】
【発明の実施の形態】
以下、本発明の実施の形態を図面で詳細に説明する。図１は本発明の赤外線反射機能を有するアルミニウムサッシの１実施形態を示す要部の縦断側面図で、図中１はアルミニウムまたはアルミニウム合金である。
【００１４】
本発明はアルミニウムまたはアルミニウム合金１の表面に陽極酸化皮膜または化成皮膜２を生成させ、その上に太陽熱遮蔽塗料３を塗布した。
【００１５】
太陽熱遮蔽塗料３の膜厚は３μｍ〜１０μｍである。
【００１６】
アルミニウムまたはアルミニウム合金１は、形材の場合はＡ６０６３合金が押出速度などの生産性、強度、加工性に優れて好適である。
【００１７】
太陽熱遮蔽クリアー塗料は、顔料とビヒクルとを主成分とし、顔料は近赤外線領域で反射を示し、ＪＩＳ Ａ５７５９に定義される日射反射率が３０％以上で、可視光線透過率を２０％以上になるよう、有機系または有機系および無機系の太陽熱遮蔽顔料を単独又は複数を混合してなるものである。
【００１８】
太陽熱遮蔽電着塗料は、酸価が１５〜１６０、水酸基価が２０〜２５０であるビニル系ポリカルポン酸樹脂４０〜８０重量部およびアルコキシル化メチロールメラミン樹脂２０〜６０重量部を加えて（ａ）成分とし、この（ａ）成分１００重量部に対して（ｂ）成分としてオキサゾリン基含有ビニル系共重合体２〜５０重量部を混合し、塩基性化合物で部分的に中和し、これを水に分散してなるエマルジョンを４０℃〜還流温度で加熱して得られる生成物を有効成分とし、これに日射反射率の良い顔料を分散してなるものである。但し、電着塗料の配合は、これに限るものではない。
【００１９】
太陽熱遮蔽スプレー塗料は、フッ素樹脂７０重量部、に日射反射率の良い顔料を２重量部分散し、フッ化シリケートを８重量部添加し、塗料液とし、硬化剤に２０重量部のイソシアネート添加してなるものである。スプレー塗料の配合は、これに限るものではなく、アクリル樹脂塗料、ポリエステル樹脂塗料、シリコン樹脂塗料などがある。
【００２０】
顔料は、近赤外線領域で反射を示し、ＪＩＳ Ａ５７５９に定義される日射反射率が３０％以上で、有機系または有機系および無機系の太陽熱遮蔽顔料を分散し単独又は複数を混合してなるものである。
【００２１】
遮熱顔料としては、下記のものから選定する。
太陽熱遮蔽顔料１：タイペークＣＲ−９７ 石原産業（株）製
太陽熱遮蔽顔料２：タイペークＴＴＯ−５５ 石原産業（株）製
太陽熱遮蔽顔料３：FASTOGEN BULE RSK 大日本インキ化学工業（株）製
太陽熱遮蔽顔料４：NanoTek （TiO2）シーアイ化成（株）製
太陽熱遮蔽顔料５：NanoTek （コバルトブルー）シーアイ化成（株）製
太陽熱遮蔽顔料６：NanoTek （コバルトグリーン）シーアイ化成（株）製
太陽熱遮蔽顔料６：NanoTek （Ｆｅ２ Ｏ３ ）シーアイ化成（株）製
前記顔料に限らず、太陽熱を遮蔽するものであれば良い。
【００２２】
なお、太陽熱遮蔽顔料の粒径は０．０１μｍ〜１０μの範囲において、中心粒子径を定め、中心粒子径を持つ粒子が、分散顔料全体の２０％以上を占め、粒度分布範囲は、中心の粒子径よりプラスマイナス８０％以内に分散し、粒度分布がシャープであることが好ましい。粗い粒子、ブロードな粒度分布の顔料を使用すると、透明感が無くなり、アルミ素材の外観を損ねる。
【００２３】
次に、本発明の遮熱アルミニウムサッシの性能を確認するために行った試験について説明する。試験装置としては図３に示すように試験箱５に試験板４で蓋をし、これを電源８に接続する赤外線灯７で一定時間（例えば約２０分間）照射するとともに、試験箱５内部に配設する温度センサー６で試験板４の温度を計測し、記録計９に記録した。
【００２４】
＜実施例１＞
使用した太陽熱遮蔽電着塗料３は、電着塗料 [００１９の電着塗料配合]と太陽熱遮蔽顔料[NanoTek （TiO2）シーアイ化成（株）製] からなり、塗膜の調整方法として、アルミニウムの表面に、ブロンズ色の陽極酸化被膜を生成させ、 [００１８] に記載の太陽熱遮蔽電着塗料を膜厚５〜１０μｍになるよう電着塗装し、１２０℃で２０分焼き付けたアルミパネルの試験板４を作成した。また、太陽熱遮蔽電着塗料を添加しないものを比較サンプル（現行品）とした。
【００２５】
図４に顔料割合いに応じた分光反射性能の差を示す。また、下記表１に膜厚一定（１０μｍ）の場合の裏面温度の相違を示す。
【表１】
＜実施例２＞
使用した太陽熱遮蔽電着塗料は、太陽熱遮蔽スプレー塗料によるもので、配合例を下記の示す。
太陽熱遮蔽スプレー塗料配合 〔重量部〕
フッ素樹脂 [ダイキン工業（株）ゼッフルＧＫ−５００シリーズ] ７０
イソシアネート[日本ポリウレタン（株）製] ２０
太陽熱遮蔽顔料[NanoTek （TiO2）シーアイ化成（株）製] ２
シリケート [ダイキン工業（株）フッ化シリケート] ８
（合計１００）
【００２７】
塗膜の調整方法として、アルミニウムの表面に、ブロンズ色の陽極酸化被膜を生成させ、[００２０]に記載の太陽熱遮蔽スプレー塗料を膜厚１０〜２０μｍになるようスプレー塗装し、１２０℃で２０分焼き付けたアルミパネルの試験板４を作成した。また、太陽熱遮蔽電着塗料を添加しないものを比較サンプル（現行品）とした。
【００２８】
図５に顔料割合いに応じた分光反射性能の差を示す。また、下記表２に膜厚一定（１０μｍ）の場合の裏面温度の相違を示す。
【表２】
前記実施例１の太陽熱遮蔽電着塗料と実施例２の太陽熱遮蔽スプレー塗料との間に、太陽熱遮熱データーの差は見られず、両塗料共良好な結果を示した。
【００３０】
また、前記実施例１の電着の場合で、顔料の分散粒度と粒度分布を変えた塗膜の可視光線透過率と目視透明観の測定結果を下記表３に示す。
【表３】
この表３からも知見できるように、中心粒度が小さく、粒度分布がシャープであれば、遮熱顔料を多く配合しても、可視光線透過率を２０％以上に保ちながら、塗膜の分光反射率を上げる事ができることが知見できる。
【００３２】
さらに、同様に前記実施例１の電着の場合で、添加量と粒径を一定として膜厚を変化させた場合の分光反射率、可視光線透過率、目視透明観を計測結果を下記表４に示す。
【表４】
また、同様に前記実施例１の電着の場合で、膜厚を一定として、添加量と粒径を変化させた場合の分光反射率、可視光線透過率、目視透明観を計測結果を下記表５に示す。
【表５】
前記表４、表５からは、膜厚は分光反射率や可視光線透過率には影響するものの膜厚１０μｍでも目視透明観は衰えず、また、顔料の平均粒径、添加量は膜厚５μｍの場合は目視透明観に影響を与えることが判る。
【００３５】
【発明の効果】
以上述べたように本発明のアルミニウム建材は、塗装の透明性を保持しできるので、アルミの金属感を生かしたまま太陽熱を遮蔽して温度上昇を抑えることができるものである。
【図面の簡単な説明】
【図１】 本発明の赤外線反射機能を有するアルミニウムサッシの１実施形態を示す要部の縦断側面面である。
【図２】 アルミニウムサッシの一例を示す断面図である。
【図３】 遮熱性を評価するための試験装置の１例を示す概略図である。
【図４】 電着の場合の分光反射性能を示すグラフである。
【図５】 スプレー塗料による場合の分光反射性能を示すグラフである。
【符号の説明】
１…アルミニウムまたはアルミニウム合金
２…陽極酸化皮膜または化成皮膜
３…太陽熱遮蔽塗料
４…試験板
５…試験箱
６…温度センサー
７…赤外線灯
８…電源
９…記録計
１０…サッシ枠
１１…障子枠
１２…ガラス
１３…建物躯体
１４…シーリング材[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an aluminum building material such as a sash, a curtain wall, and a roof plate, which has an infrared reflection function.
[0002]
[Prior art]
Among aluminum building materials, as shown in FIG. 2, the aluminum sash is assembled with a plurality of aluminum molds. In FIG. 2, 10 is a sash frame, 11 is a shoji frame, 12 is glass fitted in the
[0003]
The aluminum mold is made of an extruded shape of an aluminum alloy, and the aluminum surface is treated with excellent corrosion resistance.
[0004]
For example, as a vertical surface treatment process for a long aluminum sash profile, pretreatment, anodic oxidation (aluminum is used as an anode, and an oxide film is formed on the surface by electrochemical treatment), electrolytic coloring (aluminum anodic oxide film) Electrochemical treatment is performed to deposit a metal or metal oxide in the film to form a colored film), and after each step of hot water washing, a paint tank is placed and coating is performed.
[0005]
[Problems to be solved by the invention]
Aluminum itself, which is the material of the aluminum sash, has a high thermal conductivity, and it conducts heat more easily than wood, and it tends to become hot.
[0006]
Also, when applying paint to an aluminum sash, if this paint is used as a paint that shields against solar heat, the paint is only a white-based colored paint, and surface treatment that makes use of the metallic feeling of aluminum cannot be performed. It was.
[0007]
The object of the present invention is to eliminate the disadvantages of the conventional example and maintain the transparency of the coating. Therefore, the aluminum having an infrared reflecting function capable of suppressing the temperature rise by shielding the solar heat while taking advantage of the metallic feeling of the aluminum. To provide building materials.
[0008]
[Means for solving problems]
In order to achieve the above object, the present invention forms an anodized film or a chemical conversion film on the surface of aluminum or an aluminum alloy, on which a pigment and a vehicle are the main components, and the pigment exhibits reflection in the near infrared region. 3 μm of a solar heat-shielding paint in which the following solar heat-shielding pigment α, organic or organic and inorganic, is dispersed so that the solar reflectance defined in JIS A5759 is 30% or more and the visible light transmittance is 20% or more. The gist is that it is applied with a film thickness of ˜30 μm.
Solar heat-shielding pigment α: In the range of 0.01 μm to 10 μm in particle diameter, the central particle diameter is determined, and the particles having the central particle diameter occupy 20% or more of the entire dispersed pigment, and the particle size distribution range is the central particle diameter Further, it is distributed within plus or
[0009]
According to the first aspect of the present invention, the shielding coating in which a pigment having high solar reflectance is dispersed is applied to the surface of 3 μm to 30 μm. In comparison, an increase in the surface temperature of the aluminum building material can be suppressed.
[0010]
In addition, an anodized film or chemical conversion film is formed on the surface of aluminum or aluminum alloy, and a thermal barrier coating in which a pigment with high solar reflectance is dispersed is applied directly to the surface of aluminum or aluminum alloy. Compared to the case, the adhesion is better, and the anodic oxide film or the chemical conversion film can be improved in corrosion resistance by forming a film on the aluminum surface.
[0011]
The solar heat-shielding paint has a solar heat-shielding pigment dispersed in 0.01 μm to 10 μm, and a weight ratio of solids between the resin composition of the heat-shielding paint and the solar heat shielding pigment is 100 / 0.5 to 100/20. A thermal barrier paint is applied with a film thickness of 3 μm to 10 μm. Since the solar heat shielding pigment is dispersed in 0.01 μm to 10 μm, the coating film is transparent or slightly turbid, and has a heat shielding effect while maintaining the aluminum material view.
[0012]
In addition to the above-described effects, the heat shielding property can be easily improved by using a pigment having a solar reflectance within a certain range as a solar heat shielding paint.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a longitudinal side view of a main part showing an embodiment of an aluminum sash having an infrared reflecting function according to the present invention, in which 1 is aluminum or an aluminum alloy.
[0014]
In the present invention, an anodic oxide film or
[0015]
The film thickness of the solar
[0016]
In the case of aluminum or aluminum alloy 1, A6063 alloy is preferable because it is excellent in productivity such as extrusion speed, strength, and workability.
[0017]
The solar heat-shielding clear paint is mainly composed of a pigment and a vehicle. The pigment exhibits reflection in the near infrared region, and the solar reflectance defined in JIS A5759 is 30% or more, and the visible light transmittance is 20% or more. Thus, organic or organic and inorganic solar heat shielding pigments are used alone or in combination.
[0018]
The solar heat-shielding electrodeposition coating composition is obtained by adding 40 to 80 parts by weight of a vinyl-based polycarponic acid resin having an acid value of 15 to 160 and a hydroxyl value of 20 to 250 and 20 to 60 parts by weight of an alkoxylated methylol melamine resin. 2 to 50 parts by weight of the oxazoline group-containing vinyl copolymer as component (b) is mixed with 100 parts by weight of component (a) and partially neutralized with a basic compound. A product obtained by heating the dispersed emulsion at 40 ° C. to reflux temperature is used as an active ingredient, and a pigment having good solar reflectance is dispersed therein. However, the composition of the electrodeposition paint is not limited to this.
[0019]
The solar heat shielding spray paint is made by dispersing 2 parts by weight of a pigment having good solar reflectance in 70 parts by weight of a fluororesin, adding 8 parts by weight of fluorinated silicate to form a coating liquid, and adding 20 parts by weight of isocyanate to the curing agent. It will be. The formulation of the spray paint is not limited to this, and there are acrylic resin paint, polyester resin paint, silicon resin paint, and the like.
[0020]
The pigment shows reflection in the near-infrared region, has a solar reflectance defined by JIS A5759 of 30% or more, and is formed by dispersing organic or organic and inorganic solar heat shielding pigments alone or in combination. It is.
[0021]
The heat shielding pigment is selected from the following.
Solar Heat Shielding Pigment 1: Taipei CR-97 Ishihara Sangyo Co., Ltd. Solar Heat Shielding Pigment 2: Typeke TTO-55 Ishihara Sangyo Co., Ltd. Solar Shielding Pigment 3: FASTOGEN BULE RSK Dainippon Ink & Chemicals, Inc. Solar Heat Shielding Pigment 4: NanoTek (TiO2) Solar heat shielding pigment manufactured by C-I Kasei Co., Ltd. 5: NanoTek (Cobalt Blue) Solar heat-shielding pigment manufactured by C-I Kasei Co., Ltd. 6: Solar heat-shielding pigment manufactured by NanoTek (Cobalt Green) C-I Kasei Co., Ltd. 6: NanoTek (Fe 2 O 3 ) Not limited to the pigments manufactured by CI Kasei Co., Ltd., as long as they can shield solar heat.
[0022]
The particle size of the solar heat-shielding pigment is in the range of 0.01 μm to 10 μm, and the center particle size is determined. The particles having the center particle size occupy 20% or more of the total dispersed pigment, and the particle size distribution range is the center particle. It is preferable that it is dispersed within plus or minus 80% of the diameter and the particle size distribution is sharp. When pigments with coarse particles and broad particle size distribution are used, the transparency is lost and the appearance of the aluminum material is impaired.
[0023]
Next, a test conducted to confirm the performance of the heat-shielding aluminum sash of the present invention will be described. As shown in FIG. 3, the test device is covered with a
[0024]
<Example 1>
The used solar heat shielding
[0025]
FIG. 4 shows the difference in spectral reflection performance depending on the pigment ratio. Table 1 below shows the difference in the back surface temperature when the film thickness is constant (10 μm).
[Table 1]
<Example 2>
The used solar heat shielding electrodeposition paint is a solar heat shielding spray paint, and a blending example is shown below.
Contains solar heat spray paint (parts by weight)
Fluororesin [Daikin Industries, Ltd. Zeffle GK-500 Series] 70
Isocyanate [Nippon Polyurethane Co., Ltd.] 20
Solar heat-shielding pigment [NanoTek (TiO2) manufactured by CII Kasei Co., Ltd.] 2
Silicate [Daikin Industries, Ltd. Fluorosilicate] 8
(100 in total)
[0027]
As a method for adjusting the coating film, a bronze-colored anodic oxide coating was formed on the surface of aluminum, and the solar heat shielding spray coating described in [0020] was spray-coated so as to have a film thickness of 10 to 20 μm. A baked aluminum
[0028]
FIG. 5 shows the difference in spectral reflection performance depending on the pigment ratio. Table 2 below shows the difference in the back surface temperature when the film thickness is constant (10 μm).
[Table 2]
There was no difference in the solar heat shielding data between the solar heat shielding electrodeposition paint of Example 1 and the solar heat shielding spray paint of Example 2, and both paints showed good results.
[0030]
Table 3 below shows the measurement results of the visible light transmittance and visual transparency of the coating film in which the dispersed particle size and particle size distribution of the pigment were changed in the case of the electrodeposition of Example 1.
[Table 3]
As can be seen from Table 3, if the central particle size is small and the particle size distribution is sharp, the spectral reflection of the coating film is maintained while maintaining a visible light transmittance of 20% or more even if a large amount of heat shielding pigment is blended. It can be found that the rate can be increased.
[0032]
Similarly, in the case of the electrodeposition of Example 1, the measurement results of spectral reflectance, visible light transmittance, and visual transparency when the film thickness is changed with the addition amount and the particle size being constant are shown in Table 4 below. Shown in
[Table 4]
Similarly, in the case of electrodeposition of Example 1, the measurement results are shown in the following table for the spectral reflectance, visible light transmittance, and visual transparency when the film thickness is constant and the addition amount and particle size are changed. As shown in FIG.
[Table 5]
From Tables 4 and 5, although the film thickness affects the spectral reflectance and the visible light transmittance, the visual transparency does not deteriorate even at a film thickness of 10 μm, and the average particle diameter and the added amount of the pigment are 5 μm in film thickness. In the case of, it can be seen that the visual transparency is affected.
[0035]
【The invention's effect】
As described above, since the aluminum building material of the present invention can maintain the transparency of the coating, it is possible to suppress the rise in temperature by shielding solar heat while taking advantage of the metallic feeling of aluminum.
[Brief description of the drawings]
FIG. 1 is a longitudinal side view of an essential part showing an embodiment of an aluminum sash having an infrared reflection function of the present invention.
FIG. 2 is a cross-sectional view showing an example of an aluminum sash.
FIG. 3 is a schematic view showing an example of a test apparatus for evaluating heat shielding properties.
FIG. 4 is a graph showing spectral reflection performance in the case of electrodeposition.
FIG. 5 is a graph showing the spectral reflection performance when spray paint is used.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Aluminum or
Claims (1)
太陽熱遮蔽顔料α：粒子径が０．０１μｍ〜１０μｍの範囲において、中心粒子径を定め、中心粒子径を持つ粒子が、分散顔料全体の２０％以上を占め、粒度分布範囲は、中心の粒子径よりプラスマイナス８０％以内に分布し、塗料の樹脂組成物とこの太陽熱遮蔽顔料との固形物量比は、１００／０．５〜１００／２０である。An anodized film or a chemical conversion film is formed on the surface of aluminum or an aluminum alloy, on which a pigment and a vehicle are the main components, the pigment exhibits reflection in the near infrared region, and the solar reflectance defined in JIS A5759 Is 30% or more, and the solar heat shielding paint in which the following solar heat shielding pigment α of organic type or organic type and inorganic type is dispersed is applied with a film thickness of 3 μm to 10 μm so that the visible light transmittance is 20% or more. An aluminum building material having a feature of reflecting infrared rays.
Solar heat-shielding pigment α: In the range of 0.01 μm to 10 μm in particle diameter, the central particle diameter is determined, and the particles having the central particle diameter occupy 20% or more of the entire dispersed pigment, and the particle size distribution range is the central particle diameter Further, it is distributed within plus or minus 80%, and the solid content ratio between the resin composition of the paint and the solar heat shielding pigment is 100 / 0.5 to 100/20.
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| Application Number | Priority Date | Filing Date | Title |
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| JP2002088465A JP4375938B2 (en) | 2002-03-27 | 2002-03-27 | Aluminum building material with infrared reflection function |
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| JP2002088465A JP4375938B2 (en) | 2002-03-27 | 2002-03-27 | Aluminum building material with infrared reflection function |
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| JP4375938B2 true JP4375938B2 (en) | 2009-12-02 |
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| JP2010000460A (en) * | 2008-06-20 | 2010-01-07 | Tohoku Univ | Radiation heat transfer control film |
| CN110670795B (en) * | 2019-10-11 | 2021-08-20 | 陕西理工大学 | Stone-plastic curtain wall board and preparation method thereof |
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| JP4138129B2 (en) * | 1999-01-26 | 2008-08-20 | 勝夫 三木 | Solar heat shielding paint |
| JP3578059B2 (en) * | 1999-07-22 | 2004-10-20 | 住友金属工業株式会社 | Solar heat reflective painted metal plate |
| JP2001032399A (en) * | 1999-07-22 | 2001-02-06 | Sumitomo Metal Ind Ltd | Thermal insulating construction material equipped with heat reflection function |
| JP2002020647A (en) * | 2000-07-05 | 2002-01-23 | Dainippon Ink & Chem Inc | Black pigment composition |
| JP2003166305A (en) * | 2001-09-20 | 2003-06-13 | Sankyo Alum Ind Co Ltd | Heat-insulative aluminum curtain wall |
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