JP2014503054A - フェノール樹脂硬化発泡体からなる真空断熱材用芯材とそれを用いた真空断熱材及びその製造方法 - Google Patents
フェノール樹脂硬化発泡体からなる真空断熱材用芯材とそれを用いた真空断熱材及びその製造方法 Download PDFInfo
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Abstract
【選択図】図1
Description
図2を参照すると、芯材100を、気泡110の中心部を基準に切断した際に表れる平均粒径Dが50〜500μmになるようにすることが分かる。
実施例1
先ず、前記図1で説明したフェノール樹脂硬化発泡体中、気孔の平均粒径が100μmで、独立気泡率が1%で、空隙率が97%のフェノール樹脂硬化発泡体で構成され、8×190×250mm(厚さ×幅×長さ)の大きさに製造して真空断熱材用芯材として使用した。
前記実施例1と同一条件で真空断熱材を製造するが、芯材は気孔の平均粒径が100μmで、独立気泡率が5%で、空隙率が93%のフェノール樹脂硬化発泡体で構成され、8×190×250mm(厚さ×幅×長さ)の大きさに製造した。
前記実施例1と同一条件で真空断熱材を製造するが、芯材は気孔の平均粒径が100μmで、独立気泡率が10%で、空隙率が90%の芯材を8×190×250mm(厚さ×幅×長さ)の大きさに製造した。
前記実施例1と同一条件で真空断熱材を製造するが、芯材は気孔の平均粒径が100μmで、独立気泡率が20%で、空隙率が90%の芯材を8×190×250mm(厚さ×幅×長さ)の大きさに製造した。
前記実施例1と全ての条件が同一な真空断熱材を製造するが、芯材はガラス繊維ボードだけで構成され、8×190×250mm(厚さ×幅×長さ)の大きさに製造した。
前記実施例1と全ての条件が同一な真空断熱材を製造するが、芯材は気孔の平均粒径が150μmで、独立気泡率が2%で、空隙率が95%のポリウレタン発泡体で構成され、8×190×250mm(厚さ×幅×長さ)の大きさに製造した。
前記実施例1と全ての条件が同一な真空断熱材を製造するが、芯材は気孔の平均粒径が100μmで、独立気泡率が50%で、空隙率が90%のフェノール樹脂硬化発泡体で構成され、8×190×250mm(厚さ×幅×長さ)の大きさに製造した。
前記実施例1と全ての条件が同一な真空断熱材を製造するが、芯材は気孔の平均粒径が200μmで、独立気泡率が80%で、空隙率が60%のフェノール樹脂硬化発泡体で構成され、8×190×250mm(厚さ×幅×長さ)の大きさに製造した。
前記の実施例1〜4及び比較例1〜4に従い製造された真空断熱材を85℃の恒温チャンバーにそれぞれ入れ、3ヶ月間維持しながら、全体加熱を行わなかったものと熱伝導率を比較しながら実施した。このとき、熱伝導率の測定にはHC−074−200(EKO社製造)熱伝導測定器を使用した。次に、加速ファクターを用いて0〜10年までの熱伝導率を予測し、結果は断熱値(W/mK)に換算して下記[表1]のように表れた。
Claims (10)
- 独立気泡率(Closed Cell Content)が20%以下のフェノール樹脂硬化発泡体で形成されたことを特徴とする真空断熱材用芯材。
- 前記フェノール樹脂硬化発泡体は、
50〜500μmの気泡を含むことを特徴とする請求項1に記載の真空断熱材用芯材。 - 前記気泡は、
外周面に0.5〜30μmの微細ホールが形成されていることを特徴とする請求項2に記載の真空断熱材用芯材。 - 前記フェノール樹脂硬化発泡体は、50%以上の空隙率を有することを特徴とする請求項1に記載の真空断熱材用芯材。
- 請求項1〜4のいずれかに記載のフェノール樹脂硬化発泡体からなる芯材;及び
前記芯材を真空包装する外被材;を含むことを特徴とする真空断熱材。 - 前記真空断熱材は、
前記芯材に付着または挿入されて25%以上の吸水率を有するゲッター(getter)剤をさらに含むことを特徴とする請求項5に記載の真空断熱材。 - 前記外被材は、
外部から、表面保護層、金属バリア層及び接着層の積層構造を有することを特徴とする請求項5に記載の真空断熱材。 - 前記表面保護層は、ポリエチレンテレフタレート(PET)及びナイロン(nylon)フィルムの積層構造を有し、
前記金属バリア層はアルミニウムホイル(Foil)で形成され、
前記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)、未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−アセト酸ビニル共重合体(EVA)及びエチレン−ビニルアルコール共重合体(EVOH)から選ばれた一つ以上を含むことを特徴とする請求項7に記載の真空断熱材。 - 前記表面保護層と金属バリア層間の接着及び金属バリア層と接着層間の接着は、それぞれポリウレタン(PU)系樹脂によって接着されたことを特徴とする請求項7に記載の真空断熱材。
- 請求項1〜4のいずれかに記載のフェノール樹脂硬化発泡体芯材を製造すること;
前記芯材を50〜250℃の温度で0.5〜10Paの圧力を10〜200分間加え、残余物質を除去処理すること;及び
前記芯材を外被材で覆った後、真空包装すること;を含むことを特徴とする真空断熱材の製造方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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KR10-2010-0134982 | 2010-12-24 | ||
KR1020100134982A KR101263577B1 (ko) | 2010-12-24 | 2010-12-24 | 페놀수지 경화 발포체로 이루어진 진공단열재용 심재와 이를 이용한 진공단열재 및 그 제조 방법 |
PCT/KR2011/009481 WO2012086954A2 (ko) | 2010-12-24 | 2011-12-08 | 페놀수지 경화 발포체로 이루어진 진공단열재용 심재와 이를 이용한 진공단열재 및 그 제조 방법 |
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US (1) | US20130260078A1 (ja) |
EP (1) | EP2657278B1 (ja) |
JP (1) | JP5695212B2 (ja) |
KR (1) | KR101263577B1 (ja) |
CN (1) | CN103298865B (ja) |
WO (1) | WO2012086954A2 (ja) |
Cited By (3)
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JP2014214856A (ja) * | 2013-04-30 | 2014-11-17 | 大日本印刷株式会社 | 真空断熱材の製造方法、および真空断熱材用外包材 |
WO2016084763A1 (ja) * | 2014-11-26 | 2016-06-02 | 旭硝子株式会社 | 真空断熱材およびその製造方法 |
JP2017507811A (ja) * | 2014-02-12 | 2017-03-23 | ユッチンソン | 有機エアロゲルを有する真空断熱ボード |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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US9057472B2 (en) * | 2012-11-01 | 2015-06-16 | Ragui Ghali | Insulation material |
KR101521685B1 (ko) * | 2012-12-06 | 2015-05-20 | (주)엘지하우시스 | 멜라민 수지 경화 발포체로 이루어진 진공단열재용 심재와 이를 이용한 진공단열재 및 그 제조방법 |
US10632708B2 (en) | 2016-02-29 | 2020-04-28 | Alienus Film Llc | Insulating film |
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Also Published As
Publication number | Publication date |
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EP2657278A4 (en) | 2014-10-22 |
EP2657278A2 (en) | 2013-10-30 |
WO2012086954A2 (ko) | 2012-06-28 |
KR20120073011A (ko) | 2012-07-04 |
EP2657278B1 (en) | 2017-06-21 |
CN103298865A (zh) | 2013-09-11 |
JP5695212B2 (ja) | 2015-04-01 |
KR101263577B1 (ko) | 2013-05-13 |
CN103298865B (zh) | 2016-01-06 |
US20130260078A1 (en) | 2013-10-03 |
WO2012086954A3 (ko) | 2012-10-04 |
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