JP4458912B2 - 無機基材の遮熱性塗膜形成方法 - Google Patents
無機基材の遮熱性塗膜形成方法 Download PDFInfo
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- Application Of Or Painting With Fluid Materials (AREA)
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Description
(2)工程(1)で得られた該塗料(I)の乾燥塗膜上に、平均1次粒子径が400nm未満の二酸化チタン(B)及びシリコン系樹脂エマルションを含有する水性無機系塗料(II)を塗装し、乾燥する工程、
を含むことを特徴とする無機基材の遮熱性塗膜形成方法。
(2)工程(1)で得られた該塗料(I)の乾燥塗膜上に、更に水性無機系塗料(I)を塗装し、乾燥する工程、及び
(3)工程(2)で得られた該塗料(I)の乾燥塗膜上に、平均1次粒子径が400nm未満の二酸化チタン(B)及びシリコン系樹脂エマルションを含有する水性無機系塗料(II)を塗装し、乾燥する工程、
を含むことを特徴とする無機基材の遮熱性塗膜形成方法。
本発明の無機基材の遮熱性塗膜形成方法は、
(1)無機基材表面に、水性無機系塗料(I)を塗装し、乾燥する工程、及び(2)工程(1)で得られた該塗料(I)の乾燥塗膜上に、水性無機系塗料(II)を塗装し、乾燥する工程、を含むことを特徴とする無機基材の遮熱性塗膜形成方法I、並びに
(1)無機基材表面に、水性無機系塗料(I)を塗装し、乾燥する工程、(2)工程(1)で得られた該塗料(I)の乾燥塗膜上に、更に水性無機系塗料(I)を塗装し、乾燥する工程、及び(3)工程(2)で得られた該塗料(I)の乾燥塗膜上に、水性無機系塗料(II)を塗装し、乾燥する工程、を含むことを特徴とする無機基材の遮熱性塗膜形成方法II、に係るものである。
本発明方法を適用できる無機基材としては、例えば、セメント系材料、珪酸カルシウム系材料、石膏系材料等の無機質材料を主成分として製造される無機多孔質基材等を挙げることができる。
本発明方法に用いられる水性無機系塗料(I)は、平均1次粒子径が400〜2,000nm程度の範囲内の二酸化チタン(A)及びシリコン系樹脂エマルションを、必須成分として含有する。
本発明方法に用いられる水性無機系塗料(II)は、平均1次粒子径が400nm未満程度の二酸化チタン(B)及びシリコン系樹脂エマルションを、必須成分として含有する。
温度計、サーモスタット、攪拌器、還流冷却器、及び滴下装置を備えた容量2リットルの反応容器に、脱イオン水50部、ドデシルベンゼンスルホン酸ソーダ0.05部を仕込み、82℃まで昇温した。この反応容器中に、下記モノマー乳化物(1)を3時間かけて滴下した。モノマー乳化物(1)の滴下終了後、その中に下記モノマー乳化物(2)を1時間かけて滴下し、その後82℃で2時間熟成した後、40℃まで冷却して、乳白色のコア・シェル型共重合体エマルションを得た。得られた共重合体エマルションの固形分は40%、平均粒子径120nmであった。
下記表1記載の配合組成で、水性無機系塗料(I−1)〜(I−6)及び水性無機塗料(II−1)を製造した。
(1)試験素材として下記無機基材(i)及び(ii)を用意した。
上記で得られた各試験塗板について、付着性、下地隠蔽性、温冷サイクル、耐凍害性、耐候性及び遮熱温度の性能試験に供した。試験方法は、以下の通りである。
○:剥離した塗膜がなく付着性良好、△:被塗面と水性無機系塗料(I)との間で剥離した塗膜が30%未満であり、付着性やや不良、×:被塗面と水性無機系塗料(I)との間で剥離した塗膜が30%以上であり、付着性不良。
○:下地が完全に隠蔽されている、△:下地がやや透けて見える、×:下地が透けて見える。
○:100サイクルで塗膜に異変が見られない、△:50サイクル未満で塗膜にワレ、ハガレがみられる、×:10サイクル未満で塗膜にワレ、ハガレが見られる。
○:塗膜に異変が見られない、◇:塗板の一部に1mm以下の微細なワレが見られる、△:塗板の一部にワレ、ハガレが見られる、×:塗板全体にワレ、ハガレが見られる。
○:光沢に変化がほとんどない、△:光沢がやや低下、×:光沢が著しく低下。
Claims (10)
- (1)無機基材表面に、平均1次粒子径が400〜2,000nmの範囲内の二酸化チタン(A)及びシリコン系樹脂エマルションを含有する水性無機系塗料(I)を塗装し、乾燥する工程、及び
(2)工程(1)で得られた該塗料(I)の乾燥塗膜上に、平均1次粒子径が400nm未満の二酸化チタン(B)及びシリコン系樹脂エマルションを含有する水性無機系塗料(II)を塗装し、乾燥する工程、
を含むことを特徴とする無機基材の遮熱性塗膜形成方法。 - 無機基材表面が、シーラーが塗装、乾燥されているものである請求項1に記載の無機基材の遮熱性塗膜形成方法。
- 二酸化チタン(A)及び(B)の屈折率が、1.80〜3.00である請求項1に記載の無機基材の遮熱性塗膜形成方法。
- 水性無機系塗料(I)が、中空微粒子(C)をさらに含有している請求項1に記載の無機基材の遮熱性塗膜形成方法。
- 請求項1に記載の方法により、無機基材上に遮熱性塗膜が形成されてなる塗装体。
- (1)無機基材表面に、平均1次粒子径が400〜2,000nmの範囲内の二酸化チタン(A)及びシリコン系樹脂エマルションを含有する水性無機系塗料(I)を塗装し、乾燥する工程、
(2)工程(1)で得られた該塗料(I)の乾燥塗膜上に、更に水性無機系塗料(I)を塗装し、乾燥する工程、及び
(3)工程(2)で得られた該塗料(I)の乾燥塗膜上に、平均1次粒子径が400nm未満の二酸化チタン(B)及びシリコン系樹脂エマルションを含有する水性無機系塗料(II)を塗装し、乾燥する工程、
を含むことを特徴とする無機基材の遮熱性塗膜形成方法。 - 無機基材表面が、シーラーが塗装、乾燥されているものである請求項6に記載の無機基材の遮熱性塗膜形成方法。
- 二酸化チタン(A)及び(B)の屈折率が、1.80〜3.00である請求項6に記載の無機基材の遮熱性塗膜形成方法。
- 水性無機系塗料(I)が、中空微粒子(C)をさらに含有している請求項6に記載の無機基材の遮熱性塗膜形成方法。
- 請求項6に記載の方法により、無機基材上に遮熱性塗膜が形成されてなる塗装体。
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| JP5441453B2 (ja) * | 2009-03-11 | 2014-03-12 | アキレス株式会社 | めっき下地層を形成する下地塗料、それを用いる筐体の製造方法及びそれにより製造される筐体 |
| JP6571950B2 (ja) * | 2015-02-26 | 2019-09-04 | ケイミュー株式会社 | 塗装基材及び塗装基材の製造方法 |
| JP6649798B2 (ja) * | 2015-03-04 | 2020-02-19 | ベック株式会社 | 被膜形成方法 |
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