JP2008194974A - 断熱材及びその製造方法 - Google Patents
断熱材及びその製造方法 Download PDFInfo
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Abstract
【解決手段】断熱性成形体、好ましくはBET比表面積が15〜500m2/gで且つ一次粒子径が0.003〜1μmであるシリカ微粒子、アルミナ微粒子、ケイ酸アルミニウム微粒子もしくはこれらの混合物を含む断熱性成形体の表面の少なくとも一部に、シート状の多孔質材料が、平均粒子径0.05〜50μmの無機粒子と、金属アルコキシド化合物の加水分解物及び金属酸化物のゾルの少なくとも一方とを含むバインダーにより接着されている断熱材。
【選択図】図1
Description
(1)断熱性成形体の表面の少なくとも一部に、シート状の多孔質材料が、平均粒子径0.05〜50μmの無機粒子と、金属アルコキシド化合物の加水分解物及び金属酸化物のゾルの少なくとも一方とを含むバインダーにより接着されていることを特徴とする断熱材。
(2)断熱性成形体が、BET比表面積が15〜500m2/gで且つ一次粒子径が0.003〜1μmであるシリカ微粒子、アルミナ微粒子、ケイ酸アルミニウム微粒子もしくはこれらの混合物を含むことを特徴とする上記(1)記載の断熱材。
(3)断熱性成形体が、繊維状物質及び乳白材の少なくとも一方を含有することを特徴とする上記(1)または(2)記載の断熱材。
(4)多孔質材料が、無機質の繊維状物質を含有する抄造体、織布あるいは不織布であることを特徴とする上記(1)〜(3)の何れか1項に記載の断熱材。
(5)断熱性成形体と、シート状の多孔質材料とを、平均粒子径0.05〜50μmの無機粒子と、金属アルコキシド化合物及び金属酸化物のゾルの少なくとも一方と、溶媒とを含有するスラリー状の接着剤により接着することを特徴とする断熱材の製造方法。
(6)断熱性成形体と多孔質材料とを重ね合わせ、前記多孔質材料の上から接着剤を塗布して浸透させた後、乾燥することを特徴とする上記(5)記載の断熱材の製造方法。
(7)溶媒が、水:アルコール重量比が0:100〜70:30の範囲である水とアルコールの混合液であることを特徴とする上記(5)または(6)記載の断熱材の製造方法。
(8)接着剤が、有機増粘剤を含有することを特徴とする上記(5)〜(7)の何れか一項に記載の断熱材の製造方法。
一次粒子径が0.012μmで、BET比表面積が200m2/gであるシリカ微粒子75重量部、平均径10μmで平均繊維長6mmのシリカ繊維5重量部、および炭化ケイ素20重量部を均一になるまで混合し、この混合物を加圧成形して500mm×500mm×25mm、密度240kg/m3で、熱伝導率0.025W/m・K(100℃)の断熱性成形体を得た。
ケイ酸アルミニウムを主原料として含有する抄造体の代わりに、厚さ0.2mm、目付200g/m2のガラスクロスを用いたこと以外は実施例1と同様な処方で断熱材を作製した。
接着剤の調製において、シリカゾルを添加せず、その代わりにエタノールを8重量部、アルキルセルロースを0.4重量部添加したこと以外は、実施例1と同様な処方で断熱材を作製した。
接着剤の調製において、テトラエトキシシランを添加せず、その代わりにエタノールを8重量部添加したこと以外は、実施例1と同様な処方で断熱材を作製した。
接着剤の調製において、シリカ粒子の平均粒子径を30μmにしたこと以外は、実施例1と同様な処方で断熱材を作製した。
実施例1と同様にして作製された断熱性成形体から、100mm×30mmの試験体を切り出し、支点間距離80mmで3点曲げ試験を行ったところ23Nの荷重で破断した。
接着剤の調製において、シリカ粒子を添加しないこと以外は、実施例1と同様な処方で断熱材を作製した。
接着剤の調製において、シリカ粒子及びシリカゾルを添加せず、その代わりにエタノールを8重量部添加したこと以外は、実施例1と同様な処方で断熱材を作製した。
接着剤の調製において、シリカ粒子及びテトラエトキシシランを添加せず、その代わりにエタノールを8重量部添加したこと以外は、実施例1と同様な処方で断熱材を作製した。
接着剤の調製において、エタノールを5重量部、水を77重量部とした以外は、実施例1と同様な処方で断熱材を作製した。
2 多孔質材料
3 接着剤
4 刷毛
5 ローラ
6 空気
7 断熱性成形体への接着剤の浸透部分
Claims (8)
- 断熱性成形体の表面の少なくとも一部に、シート状の多孔質材料が、平均粒子径0.05〜50μmの無機粒子と、金属アルコキシド化合物の加水分解物及び金属酸化物のゾルの少なくとも一方とを含むバインダーにより接着されていることを特徴とする断熱材。
- 断熱性成形体が、BET比表面積が15〜500m2/gで且つ一次粒子径が0.003〜1μmであるシリカ微粒子、アルミナ微粒子、ケイ酸アルミニウム微粒子もしくはこれらの混合物を含むことを特徴とする請求項1記載の断熱材。
- 断熱性成形体が、繊維状物質及び乳白材の少なくとも一方を含有することを特徴とする請求項1または2記載の断熱材
- 多孔質材料が、無機質の繊維状物質を含有する抄造体、織布あるいは不織布であることを特徴とする請求項1〜3の何れか1項に記載の断熱材。
- 断熱性成形体と、シート状の多孔質材料とを、平均粒子径0.05〜50μmの無機粒子と、金属アルコキシド化合物及び金属酸化物のゾルの少なくとも一方と、溶媒とを含有するスラリー状の接着剤により接着することを特徴とする断熱材の製造方法。
- 断熱性成形体と多孔質材料とを重ね合わせ、前記多孔質材料の上から接着剤を塗布して浸透させた後、乾燥することを特徴とする請求項5記載の断熱材の製造方法。
- 溶媒が、水:アルコール重量比が0:100〜70:30の範囲である水とアルコールの混合液であることを特徴とする請求項5または6記載の断熱材の製造方法。
- 接着剤が、有機増粘剤を含有することを特徴とする請求項5〜7の何れか一項に記載の断熱材の製造方法。
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| JP2007033484A JP5081464B2 (ja) | 2007-02-14 | 2007-02-14 | 断熱材及びその製造方法 |
| CNA2008100061442A CN101245887A (zh) | 2007-02-14 | 2008-02-13 | 隔热材料及其制造方法 |
| US12/068,958 US20080193788A1 (en) | 2007-02-14 | 2008-02-13 | Heat insulating material and method for producing the same |
| KR1020080013083A KR101330659B1 (ko) | 2007-02-14 | 2008-02-13 | 단열재 및 그 제조방법 |
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Cited By (8)
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| JP2011073959A (ja) * | 2009-09-02 | 2011-04-14 | Nichias Corp | 断熱材 |
| JP2011163483A (ja) * | 2010-02-12 | 2011-08-25 | Isolite Insulating Products Co Ltd | 高性能断熱材及びその製造方法 |
| JP2011162902A (ja) * | 2010-02-08 | 2011-08-25 | Nichias Corp | 断熱材及びその製造方法 |
| WO2012050035A1 (ja) * | 2010-10-14 | 2012-04-19 | ニチアス株式会社 | 断熱材および断熱材の製造方法 |
| CN108422722A (zh) * | 2018-02-02 | 2018-08-21 | 深圳前海优容科技有限公司 | 一种涂布机烘箱、二氧化硅复合绝热材料及其制备方法 |
| KR20180115471A (ko) * | 2017-04-13 | 2018-10-23 | 한국과학기술연구원 | 탄소복합소재와 이종소재의 접착 및 분리 제어기술 |
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| JP2024142871A (ja) * | 2023-03-30 | 2024-10-11 | イソライト工業株式会社 | 断熱シート及びその製造方法 |
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| JP7629953B2 (ja) | 2023-03-30 | 2025-02-14 | イソライト工業株式会社 | 断熱シート及びその製造方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20080076777A (ko) | 2008-08-20 |
| KR101330659B1 (ko) | 2013-11-15 |
| US20080193788A1 (en) | 2008-08-14 |
| CN101245887A (zh) | 2008-08-20 |
| JP5081464B2 (ja) | 2012-11-28 |
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