A method for preparing a composition for titanium peroxide film

Description: TECHNICAL FIELD [Detailed description of the invention]

【0001】

[Technical field to which the invention belongs]

The present invention relates to a method for forming a titanium oxide film in which the components of a solution for forming a titanium oxide film are improved.

【0002】

[Conventional technology]

According to the conventional technique, a titanium film forming solution synthesized by reacting a titanium hydroxide gel with a hydrogen peroxide solution can be obtained by synthesizing titanium oxide fine particles produced by heating the solution to 80 ° C. or higher. It is disclosed as an invention of a titanium film forming method in which a titanium film forming solution is applied to a substrate, heated and dried, and has excellent adhesion to the substrate.

【0003】

When a substrate coated with a titanium oxide film by the conventional technique as described above is irradiated with weak ultraviolet rays from the sun, a fluorescent lamp, or a mercury lamp as a light source, a strong oxidizing action occurs, and harmful substances such as organic substances are oxidatively decomposed. .. The marketability of products in which a photocatalyst that utilizes the oxidizing action of ultraviolet rays using titanium oxide as a medium is applied to and impregnated into a substrate is rapidly increasing. In this way, when titanium oxide is applied or impregnated on the surface of the substrate, it absorbs the light energy generated from weak ultraviolet rays and activates it on the surface of the substrate, removing pollutants such as NOx and CO2, and removing pollutants such as NOx and CO2 from the atmosphere. The water purification effect, antibacterial and bactericidal effects are improved.

【0004】

[Problems to be Solved by the Invention]

As described above, the photocatalyst using titanium oxide as a medium according to the conventional technique requires the sun, a fluorescent lamp, and a mercury lamp as a light source for generating a small amount of ultraviolet rays, so that titanium oxide is used in a place not exposed to light. The oxidative action does not work sufficiently, for example, in the inner wall of a large facility such as a tunnel, ballast tank, dark room, or inside a late-night bus, a tank, a clog box, etc., a photocatalyst using titanium oxide as a medium by the conventional technique is used. Has the drawback that it cannot perform antibacterial and sterilization sufficiently effectively. Therefore, inventions such as a titanium oxide film forming method that does not require a light source as described above and a combined use with a metal-based antibacterial agent are considered important.

【0005】

[Means to solve the problem]

In the method for producing a titanium oxide film forming solution of the present invention, a titanium oxide film forming solution (A) synthesized by reacting a titanium hydroxide gel with a hydrogen peroxide solution and the solution (A) are heated to produce titanium oxide. Titanium oxide film formation by mixing an aqueous solution of capsaicin, magnetic iron ore, tourmaline, and silica fine powder with a solution for forming a titanium oxide film (A + B) synthesized by mixing with a solution (B) that produced fine particles. It is characterized by improving the method of producing a solution for use.

【0006】

When the titanium oxide film formed by the method of the present invention is applied or impregnated into various substrates and dried to form a protective film on the surface of the substrate, it is effective as a photocatalyst even in a place without a light source.

【0007】

BEST MODE FOR CARRYING OUT THE INVENTION

The solution for forming a titanium oxide film by the method of the present invention is a solution (A) synthesized by reacting a titanium hydroxide gel with a hydrogen peroxide solution, and the solution is heat-treated at 80 ° C or higher to produce titanium oxide fine particles. The titanium oxide solution (A + B) synthesized by mixing with the solution containing (B) is used as the base. This titanium oxide solution (A + B) is suitable for coating on a neutral and non-acid resistant substrate, has low production cost and excellent adhesion to the substrate, and is peroxotitanium (PTA solution) depending on the application. , Peroxo modified anatase sol (PA sol) and TPX sol, which are commercially available under trade names.

【0008】

The titanium oxide film-forming solution of the present invention is an aqueous solution obtained by dissolving fine powders of capsaicin, magnetic iron ore, tolumarin and silica in distilled water in the titanium oxide film-forming solution commercially available as the above-mentioned TPX sol. It is mixed and synthesized.

【0009】

In this case, the concentration of the capsaicin fine powder aqueous solution mixed with the above-mentioned titanium oxide film forming solution is preferably adjusted in the range of 0.01% to 15%.

【0010】

Similarly, the concentration of the above-mentioned magnetite fine powder aqueous solution is preferably adjusted in the range of 10% to 40%.

【0011】

Similarly, the concentration of the above-mentioned tourmaline fine powder aqueous solution is preferably adjusted to the range of 0.5% to 15%.

【0012】

Further, similarly, the concentration of the above-mentioned fine aqueous silica powder solution is preferably adjusted in the range of 1% to 5%.

【0013】

[Example]

As described above, the capsaicin fine powder contained in the solution forming the titanium oxide film according to the present invention prevents barnacles, oysters, etc. from adhering to the substrate when the solution is applied or impregnated into the substrate and dried. It also has the effect of preventing feeding damage caused by rats and the like on the substrate. For example, when a substrate such as a fixed net coated with a titanium oxide film containing capsaicin fine powder, sprayed and dried was left in the sea for 6 months, barnacles and oysters hardly adhered.

【0014】

Furthermore, the magnetic iron ore fine powder contained in the solution forming the titanium oxide film according to the present invention deviates from its original orbit and emits electromagnetic waves (light) having different wavelengths when some energy is applied to or deprived of its constituent electrons. Since it has an action, the oxidizing action of titanium oxide is activated by this minute amount of ultraviolet rays.

【0015】

Therefore, the conventional photocatalyst has no effect such as antibacterial property unless it is irradiated with ultraviolet rays at all. However, in the substrate coated or impregnated with the solution forming the titanium oxide film according to the present invention and dried, the sun or fluorescent lamp is used. The action of antibacterial, antifungal, air purification, water purification, etc. by the oxidizing action of the activated titanium oxide as described above is promoted without the need for an external light source such as.

【0016】

In general, a titanium oxide film has a higher refractive index than diamond, so a substrate such as glass coated with a titanium oxide film on its surface may glow iridescent or the glass may be extremely transparent. It often declined. However, according to the method for forming a titanium oxide film according to the present invention, the transparency of the glass does not decrease at all when the silica fine powder contained in the solution is coated on the glass or sprayed and dried.

【0017】

When the solution for forming a titanium oxide film according to the present invention is applied to the bottom of a large ship, a sewage ditch, a seawater intake of an electric power company, etc., which is not reachable by ultraviolet rays, and dried, it is possible to prevent the adhesion of barnacles and oysters. ..

【0018】

As described above, the solution according to the method for forming a titanium oxide film of the present invention uses a solution for forming a titanium oxide film commercially available as a TPX sol as a base, and therefore, depending on the characteristics of the base, it can be applied to a substrate. It has excellent adhesion to the substrate, and can be dried at room temperature even when it is coated and dried by a method such as spraying on a substrate. Therefore, the fine particles of capsaicin, magnetite, tourmaline, and silica contained in the constituent solution of the titanium oxide film coating solvent according to the present invention, which are mixed and synthesized in the titanium oxide film forming solution, are not easily released from the substrate, and they are not easily released from the substrate. The photocatalytic utility of is not deteriorated.

【0019】

[Effect of the invention]

When the solution for forming a titanium oxide film by the method of the present invention is applied to an inner wall of a large structure, for example, a tunnel, a ballast tank storage, etc., which is arranged in a place where there is no light source that generates ultraviolet rays, the conventional photocatalyst is used. Antibacterial, antifungal, pollution prevention, and air purification effects can be mentioned.

【0020】

Under normal conditions, the inner surface of various substrates such as chests of drawers in homes, lockers in school facilities, and shoes, which are placed in places not exposed to ultraviolet rays, is coated or impregnated with the solution for forming a titanium oxide film by the method of the present invention. In some cases, the antibacterial, antifungal, pollution-preventing, and air-purifying effects of conventional photocatalysts can be mentioned.

【0021】

According to the method of the present invention, since capsine, which is a component of the titanium oxide film forming solution, has a high insect repellent effect, it is possible to prevent the wiring of the electric system that causes computer failure from being eaten by rats and ants. Can be done.

【0022】

Further, capsaicin contained in the solution for forming a titanium oxide film by the method of the present invention prevents barnacles, oysters, etc. from adhering to aquaculture shelves, set nets, etc. placed deep in the sea where sunlight is difficult to reach, and promotes fishery-related industries. Can contribute to.