JP2009242198A - 多孔質自立粘土膜及びその製造法 - Google Patents
多孔質自立粘土膜及びその製造法 Download PDFInfo
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- JP2009242198A JP2009242198A JP2008092850A JP2008092850A JP2009242198A JP 2009242198 A JP2009242198 A JP 2009242198A JP 2008092850 A JP2008092850 A JP 2008092850A JP 2008092850 A JP2008092850 A JP 2008092850A JP 2009242198 A JP2009242198 A JP 2009242198A
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- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 3
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- Silicates, Zeolites, And Molecular Sieves (AREA)
Abstract
【解決手段】粘土を主要成分として構成され、粘土層状結晶が積層した構造を有し、自立膜として用いることができ、粘土層状結晶間に空隙を有し、かつ当該粘土層状結晶を貫通し、粘土膜表面に達する孔を有することを特徴とする多孔質自立粘土膜。
【選択図】図1
Description
また、本発明は、上記多孔質自立粘土膜からなる断熱シート材を提供するものである。
さらに本発明は、粘土を主要成分とする原料を、水又は水を含む液体に分散させ、均一な粘土分散液を得、この分散液を容器に注入し又は物体表面に塗布した後、分散媒である液体を除去して粘土膜を作製し、当該粘土膜に微細な孔開け加工を施した後、加熱処理することを特徴とする上記多孔質自立粘土膜の製造法を提供するものである。
(1)粘土膜の製造
粘土として、0.95グラムの天然モンモリロナイト(クニピアP、クニミネ工業株式会社製)を、60cm3の蒸留水に加え、プラスチック製密封容器に、テフロン(登録商標)製回転子とともに入れ、激しく振とうし、均一な分散液を得た。この分散液に、添加剤として、イプシロン−カプロラクタム(和光純薬工業株式会社製)を0.05グラム含む水溶液を加え、得られた分散液を、底面が平坦であり、底面の形状が円形であり、その直径の長さが約15cmの真鍮製トレイに注ぎ、分散液を水平に静置し、粘土粒子をゆっくりと沈積させるとともに、トレイの水平を保った状態で、強制送風式オーブン中で50℃の温度条件下で5時間乾燥して、厚さ約30μmの均一な水溶性高分子複合粘土薄膜を得た。生成した粘土薄膜をトレイから剥離して粘土膜を得た。その粘土膜を、10cm平方に切り、温度20℃、相対湿度70%のオーブンに12時間保管し、その後、アルミホイルに挟んで、油圧プレスで200kNで加圧しながら、250℃で30分加熱して、白色の多孔質粘土膜を得た。
熱伝導率測定結果から、2mm間隔以上で穴加工を行うことにより、熱伝導率は無加工の発泡膜と同程度の値を示した。
また、発泡処理前の粘土膜含水率は発泡形状に大きく影響し、約20%の含水率となる条件が好適であった。但し長時間の加湿や膜が直接水と接した場合は、膜の脆弱化により発泡不良となる傾向を示した。
Claims (8)
- 粘土を主要成分として構成され、粘土層状結晶が積層した構造を有し、自立膜として用いることができ、粘土層状結晶間に空隙を有し、かつ当該粘土層状結晶を貫通し、粘土膜表面に達する孔を有することを特徴とする多孔質自立粘土膜。
- 前記粘土層状結晶を貫通し、粘土膜表面に達する孔の孔径が1mm以下である請求項1記載の多孔質自立粘土膜。
- 前記粘土層状結晶を貫通し、粘土膜表面に達する孔が、1〜3mm間隙で設けられている請求項1記載の多孔質自立粘土膜。
- 自立膜として利用可能な機械的強度とフレキシビリティーを有する請求項1〜3のいずれか1項記載の多孔質自立粘土膜。
- 熱伝導率が0.01〜0.1W/mKである請求項1〜4のいずれか1項記載の多孔質自立粘土膜。
- 粘土層状結晶間の空隙が、粘土膜全体において均質である請求項1〜5のいずれか1項記載の多孔質自立粘土膜。
- 請求項1〜6のいずれか1項記載の多孔質自立粘土膜からなる断熱シート材。
- 粘土を主要成分とする原料を、水又は水を含む液体に分散させ、均一な粘土分散液を得、この分散液を容器に注入し又は物体表面に塗布した後、分散媒である液体を除去して粘土膜を作製し、当該粘土膜に微細な孔開け加工を施した後、加熱処理することを特徴とする請求項1記載の多孔質自立粘土膜の製造法。
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63185871A (ja) * | 1986-09-11 | 1988-08-01 | 松下電工株式会社 | 無機層状多孔体の製法 |
JP2005104133A (ja) * | 2003-09-08 | 2005-04-21 | National Institute Of Advanced Industrial & Technology | 粘土配向膜及びその製造方法 |
JP2005200290A (ja) * | 2003-12-17 | 2005-07-28 | National Institute Of Advanced Industrial & Technology | ナイロン複合粘土膜及びその製造方法 |
JP2006077237A (ja) * | 2004-08-10 | 2006-03-23 | National Institute Of Advanced Industrial & Technology | 粘土配向膜からなる保護膜 |
JP2006188418A (ja) * | 2004-12-10 | 2006-07-20 | National Institute Of Advanced Industrial & Technology | 多孔質粘土膜及びその製造方法 |
JP2007042693A (ja) * | 2005-07-29 | 2007-02-15 | National Institute Of Advanced Industrial & Technology | フレキシブル基板 |
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2008
- 2008-03-31 JP JP2008092850A patent/JP5294249B2/ja active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63185871A (ja) * | 1986-09-11 | 1988-08-01 | 松下電工株式会社 | 無機層状多孔体の製法 |
JP2005104133A (ja) * | 2003-09-08 | 2005-04-21 | National Institute Of Advanced Industrial & Technology | 粘土配向膜及びその製造方法 |
JP2005200290A (ja) * | 2003-12-17 | 2005-07-28 | National Institute Of Advanced Industrial & Technology | ナイロン複合粘土膜及びその製造方法 |
JP2006077237A (ja) * | 2004-08-10 | 2006-03-23 | National Institute Of Advanced Industrial & Technology | 粘土配向膜からなる保護膜 |
JP2006188418A (ja) * | 2004-12-10 | 2006-07-20 | National Institute Of Advanced Industrial & Technology | 多孔質粘土膜及びその製造方法 |
JP2007042693A (ja) * | 2005-07-29 | 2007-02-15 | National Institute Of Advanced Industrial & Technology | フレキシブル基板 |
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