JP5744039B2 - 真空断熱パネルを製造する方法 - Google Patents
真空断熱パネルを製造する方法 Download PDFInfo
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- JP5744039B2 JP5744039B2 JP2012536717A JP2012536717A JP5744039B2 JP 5744039 B2 JP5744039 B2 JP 5744039B2 JP 2012536717 A JP2012536717 A JP 2012536717A JP 2012536717 A JP2012536717 A JP 2012536717A JP 5744039 B2 JP5744039 B2 JP 5744039B2
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Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Acoustics & Sound (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Thermal Insulation (AREA)
- Laminated Bodies (AREA)
Description
(a)直径が0.1〜10μmの短繊維からなるガラス繊維を水、シリカパウダー及び水酸化ナトリウムからなる水ガラスに分散させた後、無機バインダーとガラス繊維の撹拌過程、無機バインダーとガラス繊維の混合物をボード化する過程、圧着ロ−ルを用いて脱水した後、熱風によって乾燥する過程を有する製紙法を用いて4〜10mmの厚さで製造したガラス繊維ボードを1〜3枚積層し、直径が20μm以下の気孔を含み、80%以上の気孔率を有する芯材を形成すること;
(b)前記芯材表面に対し、熱融着性接着層、この熱融着性接着層にポリウレタン(PU)系樹脂を用いて接着されたAlホイル金属バリア層、このAlホイル金属バリア層にポリウレタン(PU)系樹脂を用いて接着された20〜30μmの厚さのナイロンフィルム、10〜14μmの厚さのポリエチレンテレフタレート層及びビニル系樹脂層を順に有する積層構造を有する外被材を形成すること;
(c)生石灰(CaO)粉末をクレープ紙及びポリプロピレン(PP)含浸不織布で形成されたパウチに包装して製造した2mm以下の厚さのゲッターを形成すること;
(d)前記ゲッターを前記芯材の上部に付着させる、または前記芯材の表面に挿入すること;及び
(e)前記外被材を用いて封止体を形成した後、(d)段階の芯材を入れて封止体内部の真空度が0.1〜10Paの真空状態で密封させることを含むこと
を含むことを特徴とする。
直径が0.1〜10μmの短繊維からなるガラス繊維を水、シリカパウダー及び水酸化ナトリウムからなる水ガラスに分散させた後、無機バインダーとガラス繊維の撹拌過程、無機バインダーとガラス繊維の混合物をボード化する過程、圧着ロ−ルを用いて脱水した後、熱風によって乾燥する過程を有する製紙法を用いて4〜10mmの厚さで製造したガラス繊維ボードを1〜3枚積層し、直径が20μm以下の気孔を含み、80%以上の気孔率を有する芯材;
前記芯材の上部に付着された、または前記芯材の表面凹部内に挿入され、生石灰(CaO)粉末をクレープ紙及びポリプロピレン(PP)含浸不織布で形成されたパウチに包装した形態である2mm以下の厚さのゲッター;及び
前記芯材表面に対し、熱融着性接着層、この熱融着性接着層にポリウレタン(PU)系樹脂を用いて接着されたAlホイル金属バリア層、このAlホイル金属バリア層にポリウレタン(PU)系樹脂を用いて接着された20〜30μmの厚さのナイロンフィルム、10〜14μmの厚さのポリエチレンテレフタレート層及びビニル系樹脂層を順に有する積層構造を有する外被材を含む前記外被材を用いて形成した封止体内部の真空度が0.1〜10Paの真空断熱パネルであることを特徴とする。
まず、図1を参照して説明したガラス繊維ボードを10×300×400mm(厚さ×幅×長さ)の大きさに製造した後、1〜3枚を積層して芯材を形成した。
10×300×400mm(厚さ×幅×長さ)のバインダーグラスウールタイプのガラス繊維ボードを製造した後、1〜3枚を積層して芯材を形成した。
図1を参照して説明したガラス繊維ボードを10×300×400mm(厚さ×幅×長さ)の大きさに製造した後、1〜3枚を積層して芯材を形成した。
図1を参照して説明したガラス繊維ボードを10×300×400mm(厚さ×幅×長さ)の大きさに製造した後、1〜3枚を積層して芯材を形成した。
上述した実施例及び比較例に係る真空断熱パネルを85℃の恒温チャンバにそれぞれ入れて10日間維持しながら、全体加熱を実施していないものと熱伝導率を比較した。このとき、熱伝導率の測定にはHC―074・300(英弘精機株式会社製)熱伝導測定器を使用した。次に、加速ファクターを適用して0〜10年までの熱伝導率を予測し、その結果を下記の表1及び図7に示した。
Claims (4)
- (a)直径が0.1〜10μmの短繊維からなるガラス繊維を水、シリカパウダー及び水酸化ナトリウムからなる水ガラスに分散させた後、無機バインダーとガラス繊維の撹拌過程、無機バインダーとガラス繊維の混合物をボード化する過程、圧着ロ−ルを用いて脱水した後、熱風によって乾燥する過程を有する製紙法を用いて4〜10mmの厚さで製造したガラス繊維ボードを1〜3枚積層し、直径が20μm以下の気孔を含み、80%以上の気孔率を有する芯材を形成すること;
(b)前記芯材表面に対し、熱融着性接着層、この熱融着性接着層にポリウレタン(PU)系樹脂を用いて接着されたAlホイル金属バリア層、このAlホイル金属バリア層にポリウレタン(PU)系樹脂を用いて接着された20〜30μmの厚さのナイロンフィルム、10〜14μmの厚さのポリエチレンテレフタレート層及びビニル系樹脂層を順に有する積層構造を有する外被材を形成すること;
(c)生石灰(CaO)粉末をクレープ紙及びポリプロピレン(PP)含浸不織布で形成されたパウチに包装して製造した2mm以下の厚さのゲッターを形成すること;
(d)前記ゲッターを前記芯材の上部に付着させる、または前記芯材の表面に挿入すること;及び
(e)前記外被材を用いて封止体を形成した後、(d)段階の芯材を入れて封止体内部の真空度が0.1〜10Paの真空状態で密封させることを含むことを特徴とする真空断熱パネルの製造方法。 - 前記ビニル系樹脂は、ポリ塩化ビニル(PVC)、ポリ酢酸ビニル(PVA)、ポリビニルアルコール(PVAL)、ポリビニルブチラール(PVB)、ポリ塩化ビニリデン(PVDC)樹脂より選ばれた一つ以上であることを特徴とする、請求項1に記載の真空断熱パネルの製造方法。
- 前記熱融着性接着層は、高密度ポリエチレン(HDPE)、低密度ポリエチレン(LDPE)、線形低密度ポリエチレン(LLDPE)、無延伸ポリプロピレン(CPP)、延伸ポリプロピレン(OPP)、ポリ塩化ビニリデン(PVDC)、ポリ塩化ビニル(PVC)、エチレン―酢酸ビニル共重合体(EVA)、エチレン―ビニルアルコール共重合体(EVOH)より選ばれた一つ以上のプラスチックフィルムであることを特徴とする、請求項1に記載の真空断熱パネルの製造方法。
- 前記生石灰(CaO)の純度は95%以上であることを特徴とする、請求項1に記載の真空断熱パネルの製造方法。
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