JP7158405B2 - 複合放射冷却膜、複合放射冷却膜材料及びその応用 - Google Patents
複合放射冷却膜、複合放射冷却膜材料及びその応用 Download PDFInfo
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Description
複合放射冷却膜は、上から下に順に配置された第二放射層、第一放射層及び金属反射層を含む。
複合放射冷却膜は、上から下に順に配置された第二放射層、第一放射層及び金属反射層を含む。
実施例3の複合放射冷却膜が実施例1の複合放射冷却膜と異なる点は、第二放射層の外表面に凸部を有し、凸部が表面にマイクロ構造を有するロールを利用して、エンボス加工により形成され、凸部の高さが1μmであることである。
実施形態4の複合放射冷却膜が実施例1の複合放射冷却膜と異なる点は、第二放射層の外表面が凸部を有し、凸部が表面にマイクロ構造を有するロールを利用して、エンボス加工により形成され、凸部の高さが100μmであることである。
実施例5の複合放射冷却膜が実施例1の複合放射冷却膜と異なる点は、第二放射層において、第二セルの平均孔径が50nmであり、第一放射層において、第一セルの平均孔径が20nmであることである。
実施例6の複合放射冷却膜が実施例1の複合放射冷却膜と異なる点は、第二放射層において、第二セルの平均孔径が1nmであり、第一放射層において、第一セルの平均孔径が1μmであることである。
実施例7の複合放射冷却膜が実施例2の複合放射冷却膜と異なる点は、第一放射層において、第一放射層における第一セルの体積分率は1%であり、体積分率が約2%であるセラミックマイクロビーズが第一セルに埋め込まれ、第二放射層において、第二放射層における第二セルの体積分率は1%であり、体積分率が約1%であるSiO2粒子が第二セルに埋め込まれることである。
複合放射冷却膜は、上から下に順に配置された第二放射層、第一放射層、第一金属反射層、中間層及び第二金属反射層を含む。
複合放射冷却膜は、上から下に順に配置された第二放射層、第一放射層、第一金属反射層、中間層、第二金属反射層及び樹脂反射層を含む。
複合放射冷却膜は、上から下に順に配置された第二放射層、第一放射層、第一金属反射層、中間層、第二金属反射層及び樹脂反射層をに含む。
実施例11の複合放射冷却膜が実施例2の複合放射冷却膜と異なる点は、第一放射層において、第一セルの平均孔径が10μmであり、第一放射層における第一セルの体積分率は10%であり、体積分率が約8%であるセラミックマイクロビーズが第一セルに埋め込まれ、第二放射層において、第二セルの平均孔径が100nmであり、第二放射層における第二セルの体積分率は8%であり、体積分率が約3%であるSiO2粒子が第二セルに埋め込まれることである。
複合放射冷却膜は、上から下に順に配置された放射層及び金属反射層を含む。
複合放射冷却膜は、上から下に順に配置された放射層及び金属反射層を含む。
複合放射冷却膜は、上から下に順に配置された放射層及び金属反射層を含む。
複合放射冷却膜は、上から下に順に配置された第二放射層、第一放射層及び金属反射層を含む。
複合放射冷却膜は、上から下に順に配置された第二放射層、第一放射層及び金属反射層を含む。
複合放射冷却膜は、上から下に順に配置された第二放射層、第一放射層及び金属反射層を含む。
複合放射冷却膜は、上から下に順に配置された放射層及び金属反射層を含む。
複合放射冷却膜は、上から下に順に配置された第二放射層、第一放射層及び金属反射層を含む。
複合放射冷却膜は、上から下に順に配置された第二放射層、第一放射層及び金属反射層を含む。
内部の長さ、幅、高さがそれぞれ800nm、800nm、80nmであるプラスチック材料の水槽の上表面に複合放射冷却膜を配置し、複合放射冷却膜は、上から下に順に配置された第一放射層及び金属反射層を含む。
Claims (23)
- 最上層と、前記最上層の下方に配置された反射層とを含む複合放射冷却膜において、前記最上層は、第一ポリマー及び第二ポリマーを含み、前記第一ポリマーは、TPXポリマー、PETポリマー及びPENポリマーの少なくとも一種であり、前記第二ポリマーは、PVDFポリマー、PMMAポリマー及びポリウレタンポリマーの少なくとも一種であり、前記複合放射冷却膜は、300nm~2500nmの帯域の太陽光に対して80%を超える反射率を有し、
前記最上層は、前記反射層に隣接する第一放射層と、前記反射層から離れた第二放射層とを含み、前記第一放射層の材料は前記第一ポリマーを含み、前記第一放射層は複数の第一セルをさらに含み、複数の前記第一セルが前記第一放射層の内部に配置され、前記第二放射層の材料は前記第二ポリマーを含み、前記第二放射層は複数の第二セルをさらに含み、複数の前記第二セルが前記第二放射層の内部に配置され、前記第一セルの平均孔径は、1μm~20μmであり、前記第二セルの平均孔径は、1nm~200nmであり、
前記第一放射層の厚さは、10μm~300μmであり、前記第二放射層の厚さは、5μm~150μmであることを特徴とする複合放射冷却膜。 - 前記第一放射層における前記第一セルの体積分率は1%~20%であり、前記第二放射層における前記第二セルの体積分率は1%~20%であることを特徴とする、請求項1に記載の複合放射冷却膜。
- 前記第一放射層は、前記第一セルの少なくとも一部に埋め込まれた第一添加剤をさらに含み、及び/又は、
前記第二放射層は、第二セルの少なくとも一部に埋め込まれた第二添加剤をさらに含むことを特徴とする、請求項1又は請求項2に記載の複合放射冷却膜。 - 前記第一添加剤の平均粒径は、1μm~20μmであり、及び/又は、
前記第二添加剤の平均粒径は、1nm~200nmであることを特徴とする、請求項3に記載の複合放射冷却膜。 - 前記第一放射層における前記第一添加剤の体積分率は0%~20%であり、前記第二放射層における前記第二添加剤の体積分率は0%~20%であることを特徴とする、請求項3に記載の複合放射冷却膜。
- 前記第一添加剤及び前記第二添加剤は、それぞれ無機フィラーを含み、前記無機フィラーは、ガラスマイクロビーズ、セラミックマイクロビーズ、酸化ケイ素粒子、炭化ケイ素粒子、窒化ケイ素粒子、硫酸バリウム粒子及び炭酸カルシウム粒子の少なくとも一種であり、及び/又は、
前記第一添加剤及び前記第二添加剤は、それぞれ有機フィラーを含み、前記有機フィラーは、C-O、C-Cl、C-F、C-N、C-Si、Si-Oの官能基を有するポリマーの少なくとも一種を含むことを特徴とする、請求項3に記載の複合放射冷却膜。 - 前記有機フィラーは、ポリエチレンテレフタレート、ポリブチレンテレフタレート、ポリエチレンナフタレート、ポリカーボネート、ポリ塩化ビニル、ポリメタクリル酸メチル、ポリフッ化ビニリデン、ポリテトラフルオロエチレン、パーフルオロエチレンプロピレンコポリマー、ポリジメチルシロキサン、ウレタン樹脂の少なくとも一種であることを特徴とする、請求項6に記載の複合放射冷却膜。
- 前記第一添加剤及び前記第二添加剤は、それぞれ有機フィラーを含み、前記有機フィラーは、ポリ4-メチルペンテン、ポリ-4-メチル-1-ペンテン、ポリエチレン、ポリプロピレン及びポリスチレンの少なくとも一種であることを特徴とする、請求項3に記載の複合放射冷却膜。
- 前記第二放射層は、前記第一放射層から離れた表面に凸部が分布することを特徴とする、請求項1に記載の複合放射冷却膜。
- 前記凸部の高さは、1μm~100μmであることを特徴とする、請求項9に記載の複合放射冷却膜。
- 前記反射層は、金属反射層を含み、前記金属反射層は、金、銀、アルミニウム、銅、亜鉛の少なくとも一種を含むことを特徴とする、請求項1に記載の複合放射冷却膜。
- 前記金属反射層は、前記最上層に隣接する第一金属反射層と、前記最上層から離れた第二金属反射層とを含み、前記第一金属反射層の材料は、前記第二金属反射層の材料と同じであっても異なっていてもよく、前記第一金属反射層の厚さは、5nm~200nmであり、前記第二金属反射層の厚さは5nm~200nmであることを特徴とする、請求項11に記載の複合放射冷却膜。
- 前記金属反射層は、前記第一金属反射層と第二金属反射層とを接続することに用いられる中間層をさらに含むことを特徴とする、請求項12に記載の複合放射冷却膜。
- 前記反射層は、複数の第三セルを有する樹脂反射層を含むことを特徴とする、請求項1に記載の複合放射冷却膜。
- 前記第三セルの平均孔径は、0.2μm~20μmであることを特徴とする、請求項14に記載の複合放射冷却膜。
- 前記樹脂反射層は、順に配置される第一樹脂反射層、第二樹脂反射層及び第三樹脂反射層を含み、前記第三セルは、前記第二樹脂反射層に形成されることを特徴とする、請求項14又は請求項15に記載の複合放射冷却膜。
- 前記第二樹脂反射層における前記第三セルの体積分率は、2%~30%であることを特徴とする、請求項16に記載の複合放射冷却膜。
- 前記樹脂反射層の厚さは、25μm~300μmであることを特徴とする、請求項14に記載の複合放射冷却膜。
- 前記樹脂反射層の材料は、ポリ4-メチルペンテン、ポリエチレンテレフタレート、ポリブチレンテレフタレート、ポリエチレンナフタレート、アクリロニトリル-ブタジエン-スチレン共重合体、ポリスチレン、ポリプロピレン及びポリカーボネートの少なくとも一種を含むことを特徴とする、請求項14に記載の複合放射冷却膜。
- 前記反射層は、前記最上層に隣接する金属反射層と、前記最上層から離れた樹脂反射層とを含むことを特徴とする、請求項1に記載の複合放射冷却膜。
- 前記請求項1~請求項20の中のいずれか一項に記載の複合放射冷却膜を含む複合放射冷却膜材料は、前記複合放射冷却膜と基材を複合することによって形成され、前記複合放射冷却膜の反射層が前記基材に近い表面に配置されることを特徴とする複合放射冷却膜材料。
- 前記基材は、金属、プラスチック、ゴム、アスファルト、防水材料、コンクリート、セメント、織布、織物、木材、セラミックタイル、ガラス製品又は有機合成材料の少なくとも一種であることを特徴とする、請求項21に記載の複合放射冷却膜材料。
- 前記請求項1~請求項20の中のいずれか一項に記載の複合放射冷却膜の応用は、前記複合放射冷却膜を熱放散体に設置し、且つ前記複合放射冷却膜を熱放散体と熱的に接続させることを含むことを特徴とする複合放射冷却膜の応用。
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