JP2005138059A - 速硬化性光触媒体 - Google Patents
速硬化性光触媒体 Download PDFInfo
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- JP2005138059A JP2005138059A JP2003379173A JP2003379173A JP2005138059A JP 2005138059 A JP2005138059 A JP 2005138059A JP 2003379173 A JP2003379173 A JP 2003379173A JP 2003379173 A JP2003379173 A JP 2003379173A JP 2005138059 A JP2005138059 A JP 2005138059A
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- Prior art keywords
- photocatalyst
- fast
- curing
- layer
- compound
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000006243 chemical reaction Methods 0.000 claims description 17
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Abstract
【解決手段】 基材表面に設けられ、ペルオキソチタン酸及びアナターゼ型酸化チタンを含有する光触媒層と、該光触媒層上に設けられ、アルコキシシラン化合物及び/又はアルコキシシロキサン化合物を水及び有機溶媒中で反応させて得られるポリシロキサン化合物を含有する被覆層とを有する。被覆層の厚さが0.01〜0.5μm、光触媒層の厚さが、0.2〜10μmであることが好ましい。
Description
SiOxRy (I)
[式中、RはC1〜C4のアルコキシ基を表し、x、yは0≦x≦1.2、1.6≦y≦4であり、且つ2x+y=4である数値を表す。]で示される化合物であることを特徴とする請求項1〜4のいずれか記載の速硬化性光触媒体(請求項5)や、一般式(I)におけるRが、メトキシ基を表し、xが0.8であることを特徴とする請求項5記載の速硬化性光触媒体(請求項6)や、ペルオキソチタン酸が、ペルオキソチタン酸ゾルであることを特徴とする請求項1〜6のいずれか記載の速硬化性光触媒体(請求項7)や、ペルオキソチタン酸ゾルが、水溶性チタン化合物と塩基性物質との反応による水酸化チタンの生成工程と、水酸化チタンの洗浄工程と、洗浄した水酸化チタンと過酸化水素との反応工程により製造されたことを特徴とする請求項7記載の速硬化性光触媒体(請求項8)や、水溶性チタン化合物が、四塩化チタンであることを特徴とする請求項8記載の速硬化性光触媒体(請求項9)や、塩基性物質が、アンモニア水であることを特徴とする請求項7又は8記載の速硬化性光触媒体(請求項10)や、水酸化チタンの洗浄工程が、水酸化チタンを脱イオン水で洗浄した後、水酸化チタンを水に縣濁させ、この縣濁液に陽イオン交換樹脂及び陰イオン交換樹脂を添加し、水酸化チタンと陽イオン交換樹脂及び陰イオン交換樹脂とを直接接触させることにより不純物を除去する工程を含み、アンモニウムイオンの残留濃度が所定の範囲となるように反復して行われることを特徴とする請求項8〜10のいずれか記載の速硬化性光触媒体(請求項11)や、アンモニウムイオンの残留濃度が、50〜600ppmであることを特徴とする請求項11記載の速硬化性光触媒体(請求項12)や、アナターゼ型酸化チタンが、アナターゼ型酸化チタンゾルであることを特徴とする請求項1〜12のいずれか記載の速硬化性光触媒体(請求項13)や、アナターゼ型酸化チタンゾルが、ペルオキソチタン酸ゾルを80℃以上の温度で加熱して調製されるアナターゼ型酸化チタンの分散液であることを特徴とする請求項13記載の速硬化性光触媒体(請求項14)に関する。
100Lのイオン交換水に約50重量%の四塩化チタン溶液1Lを添加し、これに25重量%のアンモニア水を1L添加して充分攪拌した。静置後、生成した水酸化チタンが沈殿後、上澄み液を排出し、イオン交換水を適量添加して充分攪拌してから静置し、上澄み液を再度排出した。この洗浄操作を繰り返し、アンモニウムイオンを500ppmにした。これに35重量%過酸化水素を2L添加して攪拌したところ、黄色透明のペルオキソチタン酸ゾルを得た。
調製例1と同様にして四塩化チタンとアンモニア水を反応させた後、水酸化チタンの沈殿をアンモニウムイオンが約1000ppmになるまでイオン交換水で洗浄した。この水酸化チタンの分散液に陽イオン交換樹脂と陰イオン交換樹脂の混合イオン交換樹脂(商品名:SMNUPB、日本錬水株式会社製)を600g添加し、よく攪拌した後ナイロン製の網でイオン交換樹脂を濾別した。このときのアンモニウムイオンは200ppmであった。この液に35重量%過酸化水素を2L添加して攪拌した。黄色透明のペルオキソチタン酸ゾルを得た。
調製例2で得られたペルオキソチタン酸ゾルを約95℃で8時間加熱した。黄色白濁したアナターゼ型酸化チタンの分散液を得た。
また、0.02%メチレンブルー水溶液を表面にスプレーして着色し、1.0mw/cm2強度の紫外線を照射して、4時間以内の消色を観察し、光触媒活性を評価した。結果を表1に示す。
比較例として実施例と同様の光触媒層のみを成形したもの(比較例1、2)について、実施例と同様にして鉛筆引っかき値試験及び光触媒活性の評価を行った。結果を表1に示す。
また、0.02%メチレンブルー水溶液を表面にスプレーして着色し、2.7mw/cm2強度の紫外線を照射して、消色時間を測定した。結果を表2に示す。
比較例として実施例と同様の光触媒層のみを成形したもの(比較例3、4)について、実施例と同様にして鉛筆引っかき値試験及び消色時間を測定した。結果を表2に示す。
結果から、ポリシロキサンを塗布した壁材は防汚染性が高いことが明らかである。
Claims (14)
- 基材表面に設けられ、ペルオキソチタン酸及びアナターゼ型酸化チタンを含有する光触媒層と、該光触媒層上に設けられ、アルコキシシラン化合物及び/又はアルコキシシロキサン化合物を水及び有機溶媒中で反応させて得られるポリシロキサン化合物を含有する被覆層とを有することを特徴とする速硬化性光触媒体。
- 被覆層の厚さが、0.01〜0.5μmであることを特徴とする請求項1記載の速硬化性光触媒体。
- 光触媒層の厚さが、0.2〜10μmであることを特徴とする請求項1又は2記載の速硬化性光触媒体。
- 光触媒層と被覆層の2層積層構造体、又は、該2層積層構造体が2以上積層された多層積層構造体であることを特徴とする請求項1〜3のいずれか記載の速硬化性光触媒体。
- アルコキシシラン化合物及び/又はアルコキシシロキサン化合物が、一般式(I)
SiOxRy (I)
[式中、RはC1〜C4のアルコキシ基を表し、x、yは0≦x≦1.2、1.6≦y≦4であり、且つ2x+y=4である数値を表す。]で示される化合物であることを特徴とする請求項1〜4のいずれか記載の速硬化性光触媒体。 - 一般式(I)におけるRが、メトキシ基を表し、xが0.8であることを特徴とする請求項5記載の速硬化性光触媒体。
- ペルオキソチタン酸が、ペルオキソチタン酸ゾルであることを特徴とする請求項1〜6のいずれか記載の速硬化性光触媒体。
- ペルオキソチタン酸ゾルが、水溶性チタン化合物と塩基性物質との反応による水酸化チタンの生成工程と、水酸化チタンの洗浄工程と、洗浄した水酸化チタンと過酸化水素との反応工程により製造されたことを特徴とする請求項7記載の速硬化性光触媒体。
- 水溶性チタン化合物が、四塩化チタンであることを特徴とする請求項8記載の速硬化性光触媒体。
- 塩基性物質が、アンモニア水であることを特徴とする請求項7又は8記載の速硬化性光触媒体。
- 水酸化チタンの洗浄工程が、水酸化チタンを脱イオン水で洗浄した後、水酸化チタンを水に縣濁させ、この縣濁液に陽イオン交換樹脂及び陰イオン交換樹脂を添加し、水酸化チタンと陽イオン交換樹脂及び陰イオン交換樹脂とを直接接触させることにより不純物を除去する工程を含み、アンモニウムイオンの残留濃度が所定の範囲となるように反復して行われることを特徴とする請求項8〜10のいずれか記載の速硬化性光触媒体。
- アンモニウムイオンの残留濃度が、50〜600ppmであることを特徴とする請求項11記載の速硬化性光触媒体。
- アナターゼ型酸化チタンが、アナターゼ型酸化チタンゾルであることを特徴とする請求項1〜12のいずれか記載の速硬化性光触媒体。
- アナターゼ型酸化チタンゾルが、ペルオキソチタン酸ゾルを80℃以上の温度で加熱して調製されるアナターゼ型酸化チタンの分散液であることを特徴とする請求項13記載の速硬化性光触媒体。
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Cited By (15)
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JP2007289905A (ja) * | 2006-04-27 | 2007-11-08 | Takiron Co Ltd | 光触媒部材 |
WO2008018418A1 (fr) * | 2006-08-11 | 2008-02-14 | Kon Corporation | matériau contenant un photocatalyseur et matériau abaissant le titre de virus |
JP2010253465A (ja) * | 2009-03-28 | 2010-11-11 | Bekku Kk | 塗装方法 |
JP2010253466A (ja) * | 2009-03-28 | 2010-11-11 | Bekku Kk | 塗装方法 |
JP2013209558A (ja) * | 2012-03-30 | 2013-10-10 | Central Japan Railway Co | 薄膜形成方法 |
JP2015057491A (ja) * | 2010-10-26 | 2015-03-26 | 信越化学工業株式会社 | 常温硬化性高活性光触媒塗工液及びそれから得られる光触媒薄膜 |
JP2018502975A (ja) * | 2014-11-04 | 2018-02-01 | アライド バイオサイエンス, インコーポレイテッド | 自己汚染除去表面を形成するための組成物および方法 |
US10182570B2 (en) | 2014-11-04 | 2019-01-22 | Allied Bioscience, Inc. | Antimicrobial coatings formed from mixtures of silanes and amines |
US10258046B2 (en) | 2014-11-04 | 2019-04-16 | Allied Bioscience, Inc. | Antimicrobial coatings comprising quaternary silanes |
WO2019239808A1 (ja) * | 2018-06-11 | 2019-12-19 | 富士フイルム株式会社 | 光触媒複合材、サイネージ用ディスプレイ保護部材、タッチパネル用保護部材、太陽電池用保護部材、センサカバー用保護部材、サイネージ用ディスプレイ、タッチパネル、太陽電池、及び、センサカバー |
WO2019239810A1 (ja) * | 2018-06-11 | 2019-12-19 | 富士フイルム株式会社 | 光触媒複合材、サイネージ用ディスプレイ保護部材、タッチパネル用保護部材、太陽電池用保護部材、センサカバー用保護部材、サイネージ用ディスプレイ、タッチパネル、太陽電池、及び、センサカバー |
WO2019239809A1 (ja) * | 2018-06-11 | 2019-12-19 | 富士フイルム株式会社 | 光触媒複合材、サイネージ用ディスプレイ保護部材、タッチパネル用保護部材、太陽電池用保護部材、センサカバー用保護部材、サイネージ用ディスプレイ、タッチパネル、太陽電池、及び、センサカバー |
US10980236B2 (en) | 2014-11-04 | 2021-04-20 | Allied Bioscience, Inc. | Broad spectrum antimicrobial coatings comprising combinations of organosilanes |
US10993441B2 (en) | 2014-11-04 | 2021-05-04 | Allied Bioscience, Inc. | Antimicrobial coatings comprising organosilane homopolymers |
CN113646084A (zh) * | 2019-03-29 | 2021-11-12 | 日本电产株式会社 | 光学构件及其制造方法 |
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2003
- 2003-11-07 JP JP2003379173A patent/JP2005138059A/ja active Pending
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2007289905A (ja) * | 2006-04-27 | 2007-11-08 | Takiron Co Ltd | 光触媒部材 |
WO2008018418A1 (fr) * | 2006-08-11 | 2008-02-14 | Kon Corporation | matériau contenant un photocatalyseur et matériau abaissant le titre de virus |
JP2010253465A (ja) * | 2009-03-28 | 2010-11-11 | Bekku Kk | 塗装方法 |
JP2010253466A (ja) * | 2009-03-28 | 2010-11-11 | Bekku Kk | 塗装方法 |
JP2015057491A (ja) * | 2010-10-26 | 2015-03-26 | 信越化学工業株式会社 | 常温硬化性高活性光触媒塗工液及びそれから得られる光触媒薄膜 |
JP2013209558A (ja) * | 2012-03-30 | 2013-10-10 | Central Japan Railway Co | 薄膜形成方法 |
US10238114B2 (en) | 2014-11-04 | 2019-03-26 | Allied Bioscience, Inc. | Methods of preparing reactive mixtures of silanes and triethanolamine and polymers therefrom |
US10463046B2 (en) | 2014-11-04 | 2019-11-05 | Allied Bioscience, Inc. | Antimicrobial coatings capable of reducing the number of murine norovirus inoculated thereon |
US10182570B2 (en) | 2014-11-04 | 2019-01-22 | Allied Bioscience, Inc. | Antimicrobial coatings formed from mixtures of silanes and amines |
US10194664B2 (en) | 2014-11-04 | 2019-02-05 | Allied Bioscience, Inc. | Methods of preparing self-decontaminating surfaces using reactive silanes, triethanolamine and titanium anatase sol |
JP2018502975A (ja) * | 2014-11-04 | 2018-02-01 | アライド バイオサイエンス, インコーポレイテッド | 自己汚染除去表面を形成するための組成物および方法 |
US10258046B2 (en) | 2014-11-04 | 2019-04-16 | Allied Bioscience, Inc. | Antimicrobial coatings comprising quaternary silanes |
US10420342B2 (en) | 2014-11-04 | 2019-09-24 | Allied Bioscience, Inc. | Methods of coating a surface with an antimicrobial coating capable of reducing the number of murine norovirus inoculated thereon |
AU2015343153B2 (en) * | 2014-11-04 | 2018-05-24 | Allied Bioscience, Inc. | Composition and method to form a self decontaminating surface |
US11369114B2 (en) | 2014-11-04 | 2022-06-28 | Allied Bioscience, Inc. | Antimicrobial coatings comprising organosilane homopolymers |
US11033031B1 (en) | 2014-11-04 | 2021-06-15 | Allied Bioscience, Inc. | Broad spectrum antimicrobial coatings comprising combinations of organosilanes |
US10993441B2 (en) | 2014-11-04 | 2021-05-04 | Allied Bioscience, Inc. | Antimicrobial coatings comprising organosilane homopolymers |
US10980236B2 (en) | 2014-11-04 | 2021-04-20 | Allied Bioscience, Inc. | Broad spectrum antimicrobial coatings comprising combinations of organosilanes |
WO2019239809A1 (ja) * | 2018-06-11 | 2019-12-19 | 富士フイルム株式会社 | 光触媒複合材、サイネージ用ディスプレイ保護部材、タッチパネル用保護部材、太陽電池用保護部材、センサカバー用保護部材、サイネージ用ディスプレイ、タッチパネル、太陽電池、及び、センサカバー |
WO2019239810A1 (ja) * | 2018-06-11 | 2019-12-19 | 富士フイルム株式会社 | 光触媒複合材、サイネージ用ディスプレイ保護部材、タッチパネル用保護部材、太陽電池用保護部材、センサカバー用保護部材、サイネージ用ディスプレイ、タッチパネル、太陽電池、及び、センサカバー |
WO2019239808A1 (ja) * | 2018-06-11 | 2019-12-19 | 富士フイルム株式会社 | 光触媒複合材、サイネージ用ディスプレイ保護部材、タッチパネル用保護部材、太陽電池用保護部材、センサカバー用保護部材、サイネージ用ディスプレイ、タッチパネル、太陽電池、及び、センサカバー |
CN113646084A (zh) * | 2019-03-29 | 2021-11-12 | 日本电产株式会社 | 光学构件及其制造方法 |
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