JP2006161945A - 真空断熱材 - Google Patents
真空断熱材 Download PDFInfo
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- JP2006161945A JP2006161945A JP2004353718A JP2004353718A JP2006161945A JP 2006161945 A JP2006161945 A JP 2006161945A JP 2004353718 A JP2004353718 A JP 2004353718A JP 2004353718 A JP2004353718 A JP 2004353718A JP 2006161945 A JP2006161945 A JP 2006161945A
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Abstract
【解決手段】断熱性のコア材300 を表裏の外装体内に封入し、内部を真空排気した構成の真空断熱材10であって、表裏のいずれか一方の外装体を、ガスバリア層としてアルミニウム箔層を構成層中に有する積層フィルムA100 とし、他方の外装体を、ガスバリア層として無機酸化物蒸着層を多層有するバリアフィルム層を構成層中に2層有する積層フィルムB200 とする。
【選択図】図1
Description
レンフィルム層〔コア材側〕構成の積層フィルムであり、かつ、他方の外装体が、〔外側〕凸版印刷株式会社製GXフィルム(商品名)層/ナイロンフィルム層/凸版印刷株式会社製GXフィルム(商品名)層/高密度ポリエチレンフィルム層〔コア材側〕構成の積層フィルムであることを特徴とする第1の発明に記載の真空断熱材である。
高密度ポリエチレンフィルム層(240)〔コア材側〕構成の積層フィルムB(200)を作製し、次に、上述した積層フィルムAと積層フィルムBを用い、表側の外装体が積層フィルムA(100)で裏側の外装体が積層フィルムB(200)からなる包装袋を作製し、そして、内側に断熱性コア材(300)として粉末シリカの成形体を真空密封して、図1(a)に示す実施例1の真空断熱材(10)を作製したものである。なお、積層フィルムのコア側に用いられる高密度ポリエチレン層は、シーラント層であり、真空断熱材の端面からのバリア低下を防止して真空度維持のために、密度0.941〜0.965の高密度ポリエチレンが用いられる。また、ナイロンフィルム層は、耐ピンホール性を付与するために用いるものである。なお、積層フィルムBの構成順は、〔外側〕ナイロンフィルム層/凸版印刷株式会社製GXフィルム(商品名)層/凸版印刷株式会社製GXフィルム(商品名)層/高密度ポリエチレンフィルム層〔コア材側〕構成又は〔外側〕凸版印刷株式会社製GXフィルム(商品名)層/凸版印刷株式会社製GXフィルム(商品名)層/ナイロンフィルム層/高密度ポリエチレンフィルム層〔コア材側〕構成としてもよい。
実施例で作製した図1(b)に示す積層フィルムA(100)を用い、実施例と同様に、表側の外装体と裏側の外装体が積層フィルムAからなる包装袋を作製し、そして、内側に断熱性コア材として粉末シリカの成形体を真空密封して、比較例1の真空断熱材を作製した。
12μm厚の無機酸化物蒸着層を1層有するバリアフィルムである凸版印刷株式会社製GLフィルム(商品名)にウレタン系接着材を3g/m2 塗布して25μm厚のナイロンフィルムを貼り合わせ、この2層の積層フィルムのナイロンフィルム面にウレタン系接着材を3g/m2 塗布して50μm厚の高密度ポリエチレンを貼り合わせて、図2に示す〔外側〕凸版印刷株式会社製GLフィルム(商品名)層(410)/ナイロンフィルム層(420)/高密度ポリエチレンフィルム層(430)〔コア材側〕構成の積層フィルムC(400)を作製し、次に、この積層フィルムCを用い、実施例と同様に、表側の外装体と裏側の外装体が積層フィルムCからなる包装袋を作製し、そして、内側に断熱性コア材として粉末シリカの成形体を真空密封して、比較例2の真空断熱材を作製した。
次に、実施例、比較例1及び比較例2の3種類の真空断熱材について、その特性を比較評価した。評価結果を表1及び表2に示す。表1は、真空断熱材のガスバリア性及び熱伝導の特性評価結果であり、表2は、外装体である積層フィルムの防湿性及び突刺強度の特性評価結果である。
び積層フィルムCと比較して突刺強度に劣り、積層フィルムCは、防湿性が積層フィルムAに比較して劣る。
100……積層フィルムA
110……ポリエチレンテレフタレートフィルム層
120,220,420……ナイロンフィルム層
130……アルミニウム箔層
140,240,430……高密度ポリエチレンフィルム層
200……積層フィルムB
210,230……凸版印刷株式会社製GXフィルム(商品名)層
300……断熱性コア材
400……積層フィルムC
410……凸版印刷株式会社製GLフィルム(商品名)層
Claims (2)
- 断熱性コア材を表裏の外装体内に封入し、内部を真空排気した構成の真空断熱材において、表裏のいずれか一方の外装体が、ガスバリア層としてアルミニウム箔層を構成層中に有する積層フィルムであり、かつ、他方の外装体が、ガスバリア層として無機酸化物蒸着層を多層有するバリアフィルム層を構成層中に少なくとも2層有する積層フィルムであることを特徴とする真空断熱材。
- 表裏のいずれか一方の外装体が、〔外側〕ポリエチレンテレフタレートフィルム層/ナイロンフィルム層/アルミニウム箔層/高密度ポリエチレンフィルム層〔コア材側〕構成の積層フィルムであり、かつ、他方の外装体が、〔外側〕凸版印刷株式会社製GXフィルム(商品名)層/ナイロンフィルム層/凸版印刷株式会社製GXフィルム(商品名)層/高密度ポリエチレンフィルム層〔コア材側〕構成の積層フィルムであることを特徴とする請求項1記載の真空断熱材。
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JP2004353718A JP4649969B2 (ja) | 2004-12-07 | 2004-12-07 | 真空断熱材 |
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JP2004353718A JP4649969B2 (ja) | 2004-12-07 | 2004-12-07 | 真空断熱材 |
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JP2006161945A true JP2006161945A (ja) | 2006-06-22 |
JP4649969B2 JP4649969B2 (ja) | 2011-03-16 |
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JP2010261517A (ja) * | 2009-05-08 | 2010-11-18 | Panasonic Corp | 袋体、および真空断熱材 |
EP2910838A1 (en) * | 2014-02-24 | 2015-08-26 | Whirlpool Corporation | Multi-section core vacuum insulation panels with hybrid barrier film envelope |
US9599392B2 (en) | 2014-02-24 | 2017-03-21 | Whirlpool Corporation | Folding approach to create a 3D vacuum insulated door from 2D flat vacuum insulation panels |
US9752818B2 (en) | 2015-12-22 | 2017-09-05 | Whirlpool Corporation | Umbilical for pass through in vacuum insulated refrigerator structures |
US9835369B2 (en) | 2012-04-02 | 2017-12-05 | Whirlpool Corporation | Vacuum insulated structure tubular cabinet construction |
US9833942B2 (en) | 2012-04-11 | 2017-12-05 | Whirlpool Corporation | Method to create vacuum insulated cabinets for refrigerators |
US9840042B2 (en) | 2015-12-22 | 2017-12-12 | Whirlpool Corporation | Adhesively secured vacuum insulated panels for refrigerators |
US10018406B2 (en) | 2015-12-28 | 2018-07-10 | Whirlpool Corporation | Multi-layer gas barrier materials for vacuum insulated structure |
US10030905B2 (en) | 2015-12-29 | 2018-07-24 | Whirlpool Corporation | Method of fabricating a vacuum insulated appliance structure |
US10041724B2 (en) | 2015-12-08 | 2018-08-07 | Whirlpool Corporation | Methods for dispensing and compacting insulation materials into a vacuum sealed structure |
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CN107816601B (zh) | 2016-09-12 | 2021-08-20 | 松下电器产业株式会社 | 真空隔热件 |
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JPS62266296A (ja) * | 1986-05-12 | 1987-11-19 | 日本酸素株式会社 | 断熱体の製造方法 |
JP2002172727A (ja) * | 2000-09-22 | 2002-06-18 | Wipak Walsrode Gmbh & Co Kg | 高バリヤーフィルムであるラミネートフィルム及びその真空絶縁パネルへの使用 |
JP2004308691A (ja) * | 2003-04-02 | 2004-11-04 | Nisshinbo Ind Inc | 真空断熱材及びその製造方法 |
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Patent Citations (3)
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JPS62266296A (ja) * | 1986-05-12 | 1987-11-19 | 日本酸素株式会社 | 断熱体の製造方法 |
JP2002172727A (ja) * | 2000-09-22 | 2002-06-18 | Wipak Walsrode Gmbh & Co Kg | 高バリヤーフィルムであるラミネートフィルム及びその真空絶縁パネルへの使用 |
JP2004308691A (ja) * | 2003-04-02 | 2004-11-04 | Nisshinbo Ind Inc | 真空断熱材及びその製造方法 |
Cited By (48)
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JP2010261517A (ja) * | 2009-05-08 | 2010-11-18 | Panasonic Corp | 袋体、および真空断熱材 |
US10697697B2 (en) | 2012-04-02 | 2020-06-30 | Whirlpool Corporation | Vacuum insulated door structure and method for the creation thereof |
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US9833942B2 (en) | 2012-04-11 | 2017-12-05 | Whirlpool Corporation | Method to create vacuum insulated cabinets for refrigerators |
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EP2910838A1 (en) * | 2014-02-24 | 2015-08-26 | Whirlpool Corporation | Multi-section core vacuum insulation panels with hybrid barrier film envelope |
US9599392B2 (en) | 2014-02-24 | 2017-03-21 | Whirlpool Corporation | Folding approach to create a 3D vacuum insulated door from 2D flat vacuum insulation panels |
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