JPH09268280A - Antistaining construction material for interior - Google Patents

Antistaining construction material for interior

Info

Publication number
JPH09268280A
JPH09268280A JP7879396A JP7879396A JPH09268280A JP H09268280 A JPH09268280 A JP H09268280A JP 7879396 A JP7879396 A JP 7879396A JP 7879396 A JP7879396 A JP 7879396A JP H09268280 A JPH09268280 A JP H09268280A
Authority
JP
Japan
Prior art keywords
thin film
photocatalyst
thin layer
construction material
supported
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.)
Pending
Application number
JP7879396A
Other languages
Japanese (ja)
Inventor
Takeyoshi Fujishiro
武義 藤代
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Plastics Inc
Original Assignee
Mitsubishi Plastics Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Plastics Inc filed Critical Mitsubishi Plastics Inc
Priority to JP7879396A priority Critical patent/JPH09268280A/en
Publication of JPH09268280A publication Critical patent/JPH09268280A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/52—Multiple coating or impregnating multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/60—Agents for protection against chemical, physical or biological attack
    • C04B2103/67—Biocides
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/80—Optical properties, e.g. transparency or reflexibility

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Finishing Walls (AREA)

Abstract

PROBLEM TO BE SOLVED: To obtain an antistaining construction material for interior which is resistant to staining even with tobacco tar and/or ash with high-evenness antistaining treatment and durability without hygienic hazard by forming a thin layer of silicate salt on the surface of a construction material having smooth surface and allowing the thin layer to carry a photocatalyst. SOLUTION: A fine powder of a compound of the formula: SiOx (x is 1.5-2.5) having particle sizes of a 2-6μm is dispersed in an organic solvent, directly coated on the surfaces of a construction material having smooth surfaces and heat-treated at 100-800 deg.C depending on the kinds of the construction material to form a sintered thin layer of silicate salt (A1 ). Then, a thin layer of a photocatalyst (A2 ) is supported on the thin layer (A1 ) by the sol-gel technique. In a preferred embodiment, layers A1 and A2 are adjusted in their thickness to 0.01-1μm, respectively. In addition, an antimicrobial is contained in the thin layer A2 .

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【発明の属する技術分野】本発明は、各種の微細な塵埃
などが浮遊する室内に使用される防汚建材に関するもの
であって、特に喫煙の際発生するヤニや灰のような極め
て微細な有機物によっても汚染されることのない防汚建
材に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an antifouling building material used in a room in which various kinds of fine dust are suspended, and particularly, extremely fine organic matter such as tar and ash generated during smoking. Antifouling building materials that are not contaminated by

【０００２】[0002]

【従来の技術】一般に、室内には各種の微細な塵埃など
が浮遊しており、浮遊する塵埃が室内の壁、天井、柱な
どの建材に付着しこれらを汚染することがある。そのた
めに、合成樹脂板、化粧合板、金属板などの建材類の表
面に、ポリエチレン、ポリプロピレンなどのポリオレイ
ン系樹脂や、表面硬度が高く透明性に優れたポリエチレ
ンテレフタレートなどのポリエステル樹脂からなる樹脂
シートを貼着して建材の汚染を防止している。2. Description of the Related Art Generally, various kinds of fine dust and the like are suspended in a room, and the suspended dust may adhere to building materials such as walls, ceilings and columns in the room to contaminate them. Therefore, on the surface of building materials such as synthetic resin plate, decorative plywood, and metal plate, a resin sheet made of polyethylene resin such as polyethylene or polypropylene, or polyester resin such as polyethylene terephthalate having high surface hardness and excellent transparency. Is attached to prevent contamination of building materials.

【０００３】また住居などの居住空間の臭いを除くもの
として、建材類の表面に酸化チタンなどの光触媒を担持
させることが提案されている。Further, it has been proposed to carry a photocatalyst such as titanium oxide on the surface of building materials in order to eliminate the odor of a living space such as a house.

【０００４】[0004]

【発明が解決しようとする課題】しかし前者の場合、建
材類の表面に直接あるいは接着剤を介在させて樹脂シー
トを貼着しなければならないので、施工性に難があると
ともに、工数増になるという難点がある。また後者の場
合は、建材類の表面に直接酸化チタンなどの液状の光触
媒をゾル−ゲル法で塗布し担持させるものであるため、
合成樹脂、木材などの建材類の表面に薄膜状に塗布する
際、その建材類の表面状態によっては液状の光触媒が液
滴になり、均一に光触媒を担持させることが極めて難し
い。However, in the former case, the resin sheet has to be adhered to the surface of the building material directly or with an adhesive interposed, so that the workability is difficult and the number of steps is increased. There is a drawback. In the latter case, the liquid photocatalyst such as titanium oxide is directly applied to the surface of the building material by the sol-gel method to be carried,
When a thin film is applied to the surface of a building material such as synthetic resin or wood, the liquid photocatalyst becomes droplets depending on the surface condition of the building material, and it is extremely difficult to uniformly support the photocatalyst.

【０００５】[0005]

【課題を解決するための手段】本発明は、各種の微細な
塵埃などが浮遊する場所に使用される建材の汚染を防止
するためのものであって、建材の表面を前処理すること
によって、光触媒を均一な薄膜状に担持させることを可
能にしたものである。すなわち本発明の要旨は、室内に
使用される防汚処理建材であって、平滑な表面を有する
建材の表面に珪酸塩の薄膜を焼結形成し、その珪酸塩の
薄膜上に、光触媒の薄膜をゾル−ゲル法で担持させたこ
とを特徴とする室内用防汚建材にある。またその光触媒
の薄膜中に抗菌剤が含有されている室内用防汚建材をも
提供するものである。The present invention is intended to prevent the contamination of building materials used in places where various kinds of fine dust and the like float, by pretreating the surface of the building materials, The photocatalyst can be supported on a uniform thin film. That is, the gist of the present invention is an antifouling treated building material used indoors, in which a thin film of silicate is formed by sintering on the surface of a building material having a smooth surface, and a thin film of a photocatalyst is formed on the thin film of silicate. Is carried by a sol-gel method. Further, the present invention also provides an indoor antifouling building material containing an antibacterial agent in the photocatalyst thin film.

【０００６】[0006]

【発明の実施の形態】以下、本発明を詳しく説明する。
本発明の建材は平滑な表面を有するものであって、フイ
ルム、シート、板などの形状をしているものが代表的で
あるがそれらには限られない。材質は、ポリ塩化ビニル
樹脂、ポリカーボネート樹脂、アクリル樹脂などの合成
樹脂からなるもの、これらの合成樹脂シートを鋼板に貼
り合わせた積層体、アルミニウム、ステンレスなどの金
属材料、各種のガラス材、化粧合板などが挙げられる。BEST MODE FOR CARRYING OUT THE INVENTION The present invention is described in detail below.
The building material of the present invention has a smooth surface and is typically in the shape of a film, a sheet, a plate or the like, but is not limited thereto. The material is made of synthetic resin such as polyvinyl chloride resin, polycarbonate resin, acrylic resin, a laminated body in which these synthetic resin sheets are attached to a steel plate, metal materials such as aluminum and stainless steel, various glass materials, and decorative plywood. And so on.

【０００７】この建材の表面に形成される珪酸塩の薄膜
は、ＳｉＯｘ（但しｘ＝１．５〜２．５）で表される珪
酸塩の粉末（例えば粒径２〜６μｍのもの）を有機溶剤
に分散させて液状とし、それを建材に直接塗布し、建材
の種類に合わせて１００〜８００℃で加熱することによ
って焼結形成させたものである。The thin film of silicate formed on the surface of this building material is made of organic silicate powder (for example, having a particle size of 2 to 6 μm) represented by SiOx (where x = 1.5 to 2.5). It is made into a liquid form by dispersing it in a solvent, is directly applied to a building material, and is sintered and formed by heating at 100 to 800 ° C. according to the type of building material.

【０００８】珪酸塩薄膜の厚さは０．０１μｍ〜１μ
ｍ、特に０．０５μｍ〜０．２μｍの範囲が好ましい。
０．０１μｍ未満であると薄膜を均一に焼結形成させる
ことが困難となり、また１μｍよりも厚いと珪酸塩の薄
膜に亀裂が発生しやすくなる。この珪酸塩薄膜の上に形
成する光触媒の薄膜は、酸化チタン、酸化鉄、酸化タン
グステン、酸化ニツケルなどの半導体であって、これら
を単独で、または複数併用してもよい。これらの半導体
に白金、ロジウム、銅などの金属を添加すると、触媒活
性が増し、焼結形成時の温度が比較的低温になり好まし
い。The thickness of the silicate thin film is 0.01 μm to 1 μm.
m, particularly preferably in the range of 0.05 μm to 0.2 μm.
If it is less than 0.01 μm, it becomes difficult to uniformly form a thin film by sintering, and if it is thicker than 1 μm, cracks are likely to occur in the silicate thin film. The thin film of the photocatalyst formed on this silicate thin film is a semiconductor such as titanium oxide, iron oxide, tungsten oxide, nickel oxide, etc. These may be used alone or in combination. It is preferable to add a metal such as platinum, rhodium or copper to these semiconductors because the catalytic activity is increased and the temperature at the time of sintering formation becomes relatively low.

【０００９】この光触媒薄膜は、前記半導体とイソプロ
パノールなどのアルコール類との反応によって得られる
チタンなどのアルコキシドからゾル−ゲル法によってゾ
ルを作り、塗布法などにより珪酸塩薄膜の上に塗布した
後乾燥させ、これを２００〜８００℃で加熱することに
より前記半導体の薄膜を焼結塗着させることにより形成
される。This photocatalyst thin film is prepared by making a sol from an alkoxide such as titanium obtained by the reaction of the semiconductor with alcohols such as isopropanol by a sol-gel method, applying it on the silicate thin film by a coating method, and then drying. Then, by heating this at 200 to 800 ° C., the semiconductor thin film is formed by sintering.

【００１０】光触媒薄膜の担持厚さは、０．０１μｍ〜
１μｍ、好ましくは臨界厚さの点から０．２μｍ〜０．
５μｍである。０．０１μｍ未満であると薄膜を均一に
焼結形成させることが困難である。また１μｍよりも厚
いと半導体薄膜に亀裂が発生しやすくなる。The supported thickness of the photocatalyst thin film is 0.01 μm to
1 μm, preferably 0.2 μm to 0.
5 μm. If it is less than 0.01 μm, it is difficult to uniformly form a thin film by sintering. If it is thicker than 1 μm, cracks are likely to occur in the semiconductor thin film.

【００１１】光触媒薄膜には抗菌剤を含有させるのが好
ましく、抗菌剤としては、銀、銅および亜鉛から選ばれ
た金属のイオンを担持したゼオライト固体粒子などを用
いることができ、これらを単独で、または複数併用して
もよい。その添加量は光触媒に対して０．０１〜１０重
量％、好ましくは０．２５〜５重量％である。The photocatalyst thin film preferably contains an antibacterial agent. As the antibacterial agent, solid zeolite particles carrying ions of a metal selected from silver, copper and zinc can be used. , Or a plurality thereof may be used in combination. The amount added is 0.01 to 10% by weight, preferably 0.25 to 5% by weight, based on the photocatalyst.

【００１２】本発明の表面に光触媒薄膜を担持させた建
材が、塵埃による汚染を防止できるのは、その建材類を
居住空間で使用している際、この光触媒に波長４１０ｎ
ｍ以下の紫外線を含む光線が照射されることにより建材
類の表面およびその付近に電荷の分離が起こり、価電子
帯に正孔が、伝導帯に電子が生成し、正孔は表面に吸着
したＨ2 Ｏと反応してＯＨラジカルを生成し、このＯＨ
ラジカルが室内に浮遊する微細な塵埃、例えばたばこの
ヤニや灰を分解して汚染を防止し得るものと推測され
る。The building material having a photocatalyst thin film supported on the surface of the present invention can prevent contamination by dust because the photocatalyst has a wavelength of 410n when the building material is used in a living space.
Irradiation with light rays containing ultraviolet rays of m or less causes charge separation on the surface of building materials and its vicinity, holes are generated in the valence band and electrons are generated in the conduction band, and the holes are adsorbed on the surface. Reacts with H 2 O to generate OH radicals,
It is speculated that the radicals may decompose fine dust floating in the room, such as cigarette tar and ash, to prevent pollution.

【００１３】また建材類の表面に珪酸塩を焼結形成する
ことにより、光触媒が均一な薄膜状に担持できるのは、
焼結形成した珪酸塩によって、ゾルないし湿潤ゲル状の
光触媒に対する表面張力が低下することによるものと推
測される。By sintering silicate on the surface of building materials, the photocatalyst can be supported in a uniform thin film.
It is presumed that the silicate formed by sintering lowers the surface tension of the photocatalyst in the form of sol or wet gel.

【００１４】[0014]

【実施例】【Example】

（実施例１）厚さ５ｍｍ、大きさ１００ｍｍ角のポリ４
フツ化エチレン材の表面に、ＳｉＯ2 をアセトンに濃度
１０％で分散させた溶液を塗布して厚さ０．１μｍの薄
膜を形成し、これを８００℃に加熱することにより焼結
して、ＳｉＯ2 塗着試料を得た。(Example 1) Poly 4 having a thickness of 5 mm and a size of 100 mm square
A solution in which SiO 2 was dispersed in acetone at a concentration of 10% was applied to the surface of the fluoroethylene material to form a thin film having a thickness of 0.1 μm, and the thin film was heated to 800 ° C. to sinter it. A sample coated with SiO 2 was obtained.

【００１５】さらにそのＳｉＯ2 層の上に、チタンとイ
ソプロパノールとの反応によって得られるチタンのアル
コキシドからゾル−ゲル法によってチタンイソプロポキ
シド；Ｔｉ（ＯＣ3 Ｈ7 ）4 のゾルを作り、このゾルを
デイツプコーテイング法により厚さ０．２μｍコートし
た後、オーブンで乾燥して８００℃で加熱することによ
り、光触媒の酸化チタン層を焼結、担持した酸化チタン
薄膜担持試料を得た。Further, on the SiO 2 layer, a sol of titanium isopropoxide; Ti (OC 3 H 7 ) 4 is prepared from the alkoxide of titanium obtained by the reaction of titanium and isopropanol by the sol-gel method, and this sol is prepared. Was coated by a deep coating method to a thickness of 0.2 μm, dried in an oven and heated at 800 ° C. to obtain a titanium oxide thin film-supported sample in which the titanium oxide layer of the photocatalyst was sintered and supported.

【００１６】この酸化チタン薄膜担持試料を用い、その
酸化チタン薄膜担持面積を測定した結果、酸化チタンは
表面積のほぼ１００％に担持されていた。その酸化チタ
ン層に次の環境テストを行い、ＳＩＭＳ法により測定し
た結果、表面の炭素量は１ｐｐｍ未満であった。The titanium oxide thin film-supported sample was used to measure the titanium oxide thin film-supported area. As a result, titanium oxide was supported on almost 100% of the surface area. The titanium oxide layer was subjected to the following environmental test and measured by SIMS. As a result, the amount of carbon on the surface was less than 1 ppm.

【００１７】「環境テスト」試料の表面に、抽出法で採
取したたばこのヤニ１本分のタール１ｍｇ（１．０×１
０-2ｍｇ／ｃｍ2 ）を塗布し、これを波長４１０ｎｍ以
下の紫外線を含む光線を照射している雰囲気中に１２０
分放置後、これを取り出してＳＩＳＭ法により表面の元
素分析の炭素量を測定した。On the surface of the "environmental test" sample, 1 mg of tar (1.0 x 1
0 -2 mg / cm 2 ) and apply it to an atmosphere irradiating with a ray containing ultraviolet rays having a wavelength of 410 nm or less for 120 minutes.
After standing for a minute, this was taken out and the carbon content of the elemental analysis of the surface was measured by the SISM method.

【００１８】（比較例１）実施例１と同様にして生成し
たチタンイソプロポキシド；Ｔｉ（ＯＣ3 Ｈ7 ）4 のゲ
ルを、厚さ５ｍｍ、大きさ１００ｍｍ角のポリ４フツ化
エチレン材の表面に、直接、デイツプコーテイング法に
より厚さ０．２μｍにコートした後、オーブンで乾燥し
て８００℃で加熱することにより、光触媒の酸化チタン
層を焼結、担持した酸化チタン薄膜担持試料を得た。(Comparative Example 1) A titanium isopropoxide; Ti (OC 3 H 7 ) 4 gel produced in the same manner as in Example 1 was applied to a poly 4 fluorinated ethylene material having a thickness of 5 mm and a size of 100 mm square. A titanium oxide thin film-supported sample in which the titanium oxide layer of the photocatalyst was sintered and supported by directly coating the surface to a thickness of 0.2 μm by the dip coating method, followed by drying in an oven and heating at 800 ° C. Obtained.

【００１９】この酸化チタン薄膜担持試料を用い、実施
例１と同様の評価を行った結果、酸化チタンは表面積の
ほぼ４０％にしか担持されていなかった。また環境テス
トの結果、酸化チタン担持箇所は表面の炭素量は１ｐｐ
ｍ未満であったが、担持されていない箇所では塗布した
ほぼ全量の１．０×１０-2ｍｇ／ｃｍ2 が付着してい
た。Using this titanium oxide thin film-supported sample, the same evaluation as in Example 1 was carried out. As a result, titanium oxide was supported on only about 40% of the surface area. Also, as a result of the environmental test, the carbon amount on the surface of the titanium oxide supporting portion is 1 pp.
Although it was less than m, almost all the applied amount of 1.0 × 10 -2 mg / cm 2 was attached to the unsupported portion.

【００２０】（実施例２）実施例１において、光触媒の
酸化チタンに抗菌剤として銀・銅担持ゼオライトを添加
した以外は実施例１と同様にして酸化チタン薄膜担持試
料を得た。酸化チタン薄膜担持面積を測定した結果、酸
化チタンは表面積のほぼ１００％に担持されていた。環
境テストを行い、ＳＩＭＳ法により測定した結果、表面
の炭素量は１ｐｐｍ未満であった。Example 2 A titanium oxide thin film-supported sample was obtained in the same manner as in Example 1 except that the silver / copper-supported zeolite as an antibacterial agent was added to the titanium oxide as the photocatalyst. As a result of measuring the titanium oxide thin film supporting area, titanium oxide was supported on almost 100% of the surface area. As a result of environmental test and measurement by SIMS method, the amount of carbon on the surface was less than 1 ppm.

【００２１】（比較例２）比較例１において、光触媒の
酸化チタンに抗菌剤として銀・銅担持ゼオライトを添加
した以外は比較例１と同様にして酸化チタン薄膜担持試
料を得た。酸化チタン薄膜担持面積を測定した結果、酸
化チタンは表面積のほぼ４０％にしか担持されていなか
った。また環境テストの結果、酸化チタン担持箇所は表
面の炭素量は１ｐｐｍ未満であったが、担持されていな
い箇所では塗布したほぼ全量の１．０×１０-2ｍｇ／ｃ
ｍ2 が付着していた。Comparative Example 2 A titanium oxide thin film-supported sample was obtained in the same manner as in Comparative Example 1 except that silver-copper-supported zeolite was added as an antibacterial agent to titanium oxide as a photocatalyst. As a result of measuring the supporting area of the titanium oxide thin film, titanium oxide was supported on only about 40% of the surface area. As a result of the environmental test, the amount of carbon on the surface of the titanium oxide-supported portion was less than 1 ppm, but almost 1.0% 10 -2 mg / c of the applied amount was applied to the unsupported portion.
m 2 was attached.

【００２２】[0022]

【発明の効果】本発明は、塵埃などが浮遊する室内に使
用される建材であって、建材類の表面に珪酸塩の薄膜を
塗着して前処理を行い、その表面に光触媒を担持させる
ことによって、光触媒を均一な薄膜状に担持でき、建材
表面をむらなく防汚処理することができる。しかもここ
で使用する珪酸塩および各種光触媒は衛生的に無害であ
るとともに長期間の使用にも十分耐えるものである。ま
た抗菌剤を添加することによって室内に浮遊する細菌な
どが一時的に建材に付着しても殺菌し繁殖を抑えること
ができる。INDUSTRIAL APPLICABILITY The present invention is a building material used in a room where dust or the like floats. A thin film of silicate is applied to the surface of the building material for pretreatment, and a photocatalyst is supported on the surface. As a result, the photocatalyst can be supported in a uniform thin film, and the surface of the building material can be uniformly treated for antifouling. Moreover, the silicate and various photocatalysts used here are sanitary and harmless, and can withstand long-term use. In addition, by adding an antibacterial agent, even if bacteria or the like floating in the room temporarily adhere to the building material, they can be sterilized to suppress the reproduction.

Claims (2)

【特許請求の範囲】[Claims] 【請求項１】 室内に使用される防汚処理建材であっ
て、平滑な表面を有する建材の表面に珪酸塩の薄膜を焼
結形成し、その珪酸塩の薄膜上に、光触媒の薄膜をゾル
−ゲル法で担持させたことを特徴とする室内用防汚建
材。1. An antifouling treated building material used indoors, wherein a thin film of a silicate is formed by sintering on the surface of a building material having a smooth surface, and a thin film of a photocatalyst is sol on the thin film of the silicate. -An indoor antifouling building material characterized by being loaded by the gel method. 【請求項２】 光触媒の薄膜中に抗菌剤が含有されてい
ることを特徴とする請求項１記載の室内用防汚建材。2. The indoor antifouling building material according to claim 1, wherein the photocatalytic thin film contains an antibacterial agent.
JP7879396A 1996-04-01 1996-04-01 Antistaining construction material for interior Pending JPH09268280A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7879396A JPH09268280A (en) 1996-04-01 1996-04-01 Antistaining construction material for interior

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7879396A JPH09268280A (en) 1996-04-01 1996-04-01 Antistaining construction material for interior

Publications (1)

Publication Number Publication Date
JPH09268280A true JPH09268280A (en) 1997-10-14

Family

ID=13671760

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7879396A Pending JPH09268280A (en) 1996-04-01 1996-04-01 Antistaining construction material for interior

Country Status (1)

Country Link
JP (1) JPH09268280A (en)

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