A method for preparing a composition for titanium peroxide film

1. field the invention

The invention relates to a method for preparing a composition for forming a titanium peroxide film, a composition for forming a titanium peroxide film, a Titanperoxidfilm and its use.

2. Background technology

Heretofore, a in the art The method has been disclosed wherein a composition for forming a titanium peroxide by mixing a Titanhydratgels with a peroxide is produced. From the resulting Composition could Titanperoxidpartikel by calcination at a temperature of about 80 ° C are formed. Films obtained by calcining and drying of said composition are prepared, exhibit excellent adhesion to a substrate, when coated therewith becomes.

Upon irradiation with weak ultraviolet rays from such as sunlight, a fluorescent or from a mercury lamp Such react applied to the substrate films such that adverse Substances that are composed of organic compounds, oxidized and destroyed will. Thus, said compositions have rapidly its importance found on the market as a photo catalyst that by coating and impregnating of substrates thus allows an oxidation reaction by the ultraviolet Rays excited by the Titanperoxidfilmmedium.

As described above, by Absorbing light energy from weak ultraviolet rays the Titanperoxidfilm on the surface of the substrate coated therewith or impregnated is activated so that pollutants, including NO_x and Co₂destroyed can be. In this way, the said composition and carrying it derived films to improve the purification process Air and water at. You can also for antibacterial and disinfecting reactions are applied.

As stated earlier, the required as Photocatalyst applied Titanperoxidfilmmedium prior art ultraviolet rays or sunlight, a fluorescent radiated from a mercury lamp. Therefore fails Oxidation with said photocatalyst when no light source available is. Said photocatalyst therefore has a drawback insofar on, as with him the inner walls a great Structure as a tunnel, a ballast tank or a dark compartment and the inside of a darkened Buskörpers, a dresser or a Shoe cabinet is not enough can be well disinfected.

Under these circumstances, it is very important as have been considered, a method of providing a titanium peroxide film invent, which functions as Oxidatonskatalysator without that a light source needs is, above reference is made thereto. It seemed also desirable to applied film with an antibacterial metal medium and apply.

Summary the invention

By the invention, a method for the preparation of an improved composition to form a Titanium peroxide specified and made available. According to the invention are particles of capsaicin, magnetite and tourmaline with silica (silicon dioxide) blended, each component suspended in distilled water or is dispersed. The silica may also be in the form of an aqueous solution be used. The resulting mixture is then treated with a Base comprising a Titanhydratgel, and with a peroxide compounded. From the resultant composition can Titanperoxidpartikel formed by calcination at a temperature of more than 80 ° C will.

If a protective film on the surface of a substrate formed that coated with the composition of the invention or impregnated is, said film serving as an oxidation catalyst without external light source responds.

thus the invention provides a A process for the preparation of an improved composition for indicated formation of a titanium peroxide, which as a photocatalyst the effect to stimulate antibacterial or mildew-resistant reactions and for decomposition of harmful substances and for the purification of air, even in the absence of ultraviolet light, exerts. It can therefore on the inner surface of a great Structure such as a tunnel, a ballast tanks, etc., which no exposure to light are exposed, be effectively applied.

The invention is also a improved composition for forming a titanium peroxide film provided, the effect of antibacterial for excitation or Mold-resistant Reactions and the expiration of pollutants and for cleaning exerts of air, even if as to the inner surfaces of a plurality of articles Wardrobes, cabinets is or shoes, etc. applied which normally with no Light source are irradiated.

The invention by using of caps (a) icin an improved composition for forming a Titanperoxifilms having excellent insecticidal or general pesticidal activity ready. Therefore, also rats and ants are prevented from electrical cables in damaging circuits what general as cause computer problems or shorts <?page 3?>could.

The invention is further a improved composition for forming a titanium peroxide film provided, through which crabs and oysters prevented are to adhere to culture nets or fixed shore nets, which are lowered deep into the sea and thus not of ultraviolet Light can be achieved. The invention therefore provides a contribution, to revive the fishing industry.

Detailed description

According to the invention, a composition for forming a titanium peroxide by mixing particles of caps (a) icin, magnetite and tourmaline with silica in distilled Water. The mixture thus obtained is then reacted with a base, comprising Titanhydratgel, and with a peroxide compounded to to obtain a mixture, which by calcination Titanperoxidpartikel forming at a temperature of more than 80 ° C.

Said base is neutral or has a pH-value of approx. 7 It is suitable for application on a non-acid-resistant substrate. The Base can inexpensively produced and yet excels in adhesion to the Substrate made. It is commercially available under the brand name "peroxo Titanium (PTA composition)", "peroxo anatase sol (PS-sol) "and" TPX sol "available.

Preferably, in the invention used as a base "TPX sol". said TPX sol is offered as a composition containing 0.85 wt .-% Titanium peroxide diluted, 91.5 wt .-% of distilled water containing. The base to form the titanium peroxide is with particles of caps (a) icin, magnetite and tourmaline and with Silica, which are all dispersed in distilled water, mixed.

The caps (a) icin content of the final mixture is preferably in the range of 0.01 to 15 wt .-%, based on the total composition of the invention. The amount of the caps (a) icins varies in its raw material in accordance with the natural conditions as its Country of origin and its kind. It is therefore not the caps (a) icin amount strictly limited to the application in the above range.

Likewise, the magnetite particles are preferably with the further components in the range of 10 to 40 wt .-% mixed, based on the total composition of the invention. However, the amount of the magnetite particles is not also use in the above-mentioned range limited.

The Turmalinpartikel preferably with Additional components in the range of 0.5 to 15 wt .-% mixed, based on the total composition of the invention. though is the amount of Turmalinpartikel also not limited to use limited in the above range.

Further, the silica with the other is Components in the range of 1 to 5 wt .-% mixed, based on the total composition of the invention. However, the amount on silica also not restricted to the application in the above range.

The magnetite particles in the Composition of the invention are included, generate electromagnetic Waves of different wavelengths (A light source), when some energy is introduced or from the Electron of the magnetite is taken when these natural from their Orbit emerge. Accordingly, influences the very small amount ultraviolet light emitted from said particles is, the titanium oxide that its oxidation is so excited.

The grid of Turmalinpartikel has a little magnetic polarity on, the electricity is charged under pressure application, whereby light emitted becomes. By so emitted light carrying Turmalinpartikel for excitation in the oxidation of the titanium oxide.

Photocatalysts, as previously are disclosed in the prior art, fail to provide an antibacterial or anti-mildew effect, if they do not are irradiated with ultraviolet rays. In contrast, no Such a light source such as sunlight or light from a fluorescent lamp, needed to impart these properties to a substrate coated with the coated composition of the invention is or impregnated. The antibacterial and / or anti-mildew effects and an air and water purification are increased by the oxidations are stimulated by the composition of the invention.

example 1

A composition is prepared by mixing and stirring 15 wt.% magnetite, 15 wt.% Turmalinpartikeln, 5 wt .-% Silica and 1.5 wt .-% Capsicinpartikeln with 62.5 wt .-% of distilled Water. The composition is then mixed with 0.85 wt .-% TPX sol compounded.

Steel plates and flexible plates of H300xW300xD6 mm were coated with the composition of the invention and with uncoated Plates of the same species compared. All plates were in the sea sunk deep enough to shade ultraviolet rays before and so their regular carry out investigation. Three months later, Seaweed, crabs and small shells found that the uncoated Test plates were adhered, while said seaweed, etc. on the surfaces of the coated Plates not at all was found. After 6 months were also favorable results occupied, ie, on the surfaces the uncoated Test plates were grown crabs, etc., while not adhering <?page 4?>matter on the surfaces the coated test plates were visible.

In the present example the resolution or dispersing each component in the composition increased with a small amount of methyl alcohol, which to said distilled water was added. The same applies to the other Embodiments.

example 2

A composition was prepared by Mixing and stirring of 10 wt .-% magnetite particles, 10 wt .-% Turmalinpartikeln, 0.2 Wt .-% silica and 2 wt .-% Capsicinpartikeln with 77 wt .-% of distilled Water. Said composition was then treated with 0.85 wt .-% of commercially available TPX mixed.

All surfaces in an amount up to 40 cm deep of a supplied covered polyvinyl container of H25xW30xD70 cm were coated with this composition and dried at room temperature. Some roaches were in the said container given, which is brought to the exclusion of ultraviolet rays. It was observed that all the roaches in uncoated Part of said container gathered.

example 3

A composition according to the invention was prepared by mixing all the components in the above preferred Areas with the base of a TPX sol prepared. Samples were prepared by Application of the compositions thus prepared on an electric wire prepared, on which cheese was uniformly applied as a paste. Another electric wire, on which only cheese without the composition was applied as a paste, was used for comparison used. It was observed that none of the coated with the composition wires was partly eaten by rats, whereas this is the for the comparative electrical wires Case was.

As indicated by the above-described Examples occupied, can with the composition of the invention when them on the floor of a large Vessel, the inner surface a sewer or a discharge of seawater for a power plant etc. is applied and dried, where no light goes, prevents be that crabs and oysters clinging.

As previously indicated, in a composition of the invention TPX sol as the base used, to give a Titanperoxidfilm. Therefore, the composition of the container Invention the excellent adhesion of said TPX sol. Further, the coating method is simple, as by spraying, and it is dried at normal temperature, both of the adhesive effect not impaired. Also, none of the components of the composition of the invention as the Capsizin-, magnetite and Turmalinpartikel and the silica, whereby always, separated from the base. It follows that the effect as a photocatalyst, the composition of the Invention is given, does not deteriorate in the long run.