JP2001179112A - Method of sticking/fixing titanium dioxide to three- dimensional and two-dimensional structures and contact method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To produce a photocatalyst contact material by fixing titanium dioxide fine powdery material onto the surface of a curved filament of a thermoplastic polypropylene or the flat surface of a two-dimensional structure with a binder or the binder and cement so that the titanium oxide fine powdery material is exposed, and to decompose harmful substances contained in the natural atmosphere by strong oxidation power of the photocatalytic reaction. SOLUTION: A method of producing the photocatalyst contact material comprises sticking/fixing titanium dioxide fine powdery material onto the surface of a three-dimensional permeable contact material composed of curved filaments of a thermoplastic polypropylene or the surface of an inorganic two-dimensional structure. The contact method comprises bringing the natural atmosphere or the like into contact with the photocatalyst contact material and oxidizing/decomposing organic compounds, organic chlorine compounds, volatile hydrocarbons, NOx, SOx, oil content, exhaust gases from automobiles, or the like contained in the atmosphere by the photocatalytic reaction of the titanium dioxide.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the production of a three-dimensional permeable contact material for the photocatalytic reaction of titanium dioxide (6), in which a plurality of filaments (1) are curved and point-adhered to form an irregular solid. The present invention relates to the production of a three-dimensionally transparent TiO2 contact material (8) by exposing and fixing powdery titanium dioxide (6) to the surface of the three-dimensional structure forming a space (2) with an adhesive (4). The present invention also relates to the production of the three-dimensionally permeable TiO2 contact material (8) in which the cement (5) is fixed with an adhesive, and the cement is used as a fixed bed, and titanium dioxide is exposed and fixed to the linear surface of the three-dimensional structure. The three-dimensional permeable TiO2 contact material (8) penetrates, contacts, and permeates water, natural atmosphere, and the like, and is exposed and fixed to a three-dimensional permeable contact material (8) of a photocatalytic reaction of titanium dioxide (6).
And that. The three-dimensional permeable TiO2 contact material (8) having the titanium dioxide (6) exposed and fixed to water,
The present invention relates to a contact method for obtaining a more efficient photocatalytic reaction from the excellent contact property of a three-dimensional structure having a large specific surface area and a high porosity by permeating, contacting, and transmitting natural atmosphere, and an arrangement and installation as a contact material. Adhesive (4) and cement (5)
Using a two-dimensional structure of inorganic concrete,
The present invention relates to a method of fixing titanium dioxide (6) to a metal or resin surface such as an iron material or an aluminum material. And using the two-dimensional structure to which titanium dioxide (6) is fixed as a contact material for a photocatalytic reaction.

[0002]

The present invention relates to a three-dimensional structure comprising a curved irregular three-dimensional space (2) formed by curving a plurality of filaments of a thermoplastic material and bonding them in a three-dimensional network. Related to manufacturing. The present invention relates to the production of a three-dimensionally permeable structure (8) in which a large amount of fine powdered titanium dioxide (6) is exposed and fixed on the entire surface of a curved filament (1) with an adhesive (4). The present invention relates to a photocatalytic three-dimensionally permeable contact material that allows the three-dimensionally permeable TiO2 structure (8) to which titanium dioxide is exposed and fixed to permeate, contact, and transmit water and natural atmosphere. And the above-mentioned three-dimensional permeable TiO having titanium dioxide exposed and fixed
(2) The present invention relates to a contact method for permeating, contacting, and permeating water and natural air through a contact material (8) to make photocatalytic reaction more efficient, a method of arranging and installing the contact material, and a method of applying ultraviolet light. Using an adhesive (4) and cement (5), titanium dioxide (6) is fixed to metal and resin surfaces such as inorganic concrete, iron material, and aluminum material having a flat two-dimensional structure. And manufacturing a two-dimensional structure. And using the two-dimensional structure to which titanium dioxide (6) is fixed as a contact material for a photocatalyst.

[0003]

2. Description of the Related Art Titanium dioxide uses organic energy in water and air due to the strong oxidative power of photocatalytic reaction using ultraviolet light as energy.
Environmental purification technology that oxidizes and decomposes organic chlorine compounds, volatile hydrocarbons, NOx, SOx, oil slicks, automobile exhaust gas, and the like into water and carbon dioxide is a technology discovered in Japan more than 10 years ago. I can see it. Among them, the conventional technology relating to a contact material having titanium dioxide fixed thereon is mainly a thin film obtained by spraying a sol of titanium dioxide onto a two-dimensional material such as an inorganic metal, glass, concrete, or a tile. There is a coating method such as a high temperature baking fixation at 60 ° C., a low temperature baking fixation at 60 to 120 ° C., and other spray coating, dip dipping, and gravure printing. In this case, most of the contact material is supported in a plane on the surface of the material having the two-dimensional structure. The amount of titanium dioxide fixed in an exposed state where ultraviolet light hits the smooth surface is extremely small. Among them, those that have been put into practical use include photocatalytic fluorescent lamps, glass cups, and NOx.
There is a concrete secondary product installed on the roadside zone to reduce the amount of waste, or a tile with titanium dioxide baked on the surface. In addition, a photocatalytic reaction was discovered with a flat plate-shaped contact material formed into a honeycomb shape with a thickness of 2 cm incorporating some activated carbon, inorganic fibers, and pulp. At present, the practical application is only a fraction of the cost of the month. In particular,
The technique of fixing titanium dioxide to the contact material is a technique that has been put to practical use until now, which is applied to concrete by applying titanium dioxide to the thin and wide area, or mounted inside a highway tunnel with a fluorescent lamp supported on the glass surface. Bake on glass mixed with glass, tiles, and use it for building materials for toilets and wall materials. Also, install a honeycomb-shaped contact material in an air purifier and sell it to a major manufacturer. In most cases, the method of carrying out the photocatalytic reaction for a long time or semipermanently continues.

[0004] When a photocatalytic reaction is expected by applying ultraviolet rays to a contact material supporting titanium dioxide, the larger the amount of titanium dioxide in the fine powder exposed and fixed to the contacting surface, the larger the result of the original photocatalytic reaction of titanium dioxide. Can be obtained. The amount of titanium dioxide supported on the surface of glass, tile, concrete, paint, etc. thinly and widely stretched is a few percent of the applied amount, and it spreads thinly, widely, and unevenly on the surface of a two-dimensional structure. Most of the contact material is a two-dimensionally structured flat body having a very small amount of exposed titanium dioxide. When contacting the plane of the two-dimensional structure with water, the atmosphere, etc., it is not possible for water and air to contact the slightly exposed titanium dioxide on average only by sliding on the plane of the two-dimensional structure. It is clear that the variation in the contact results in a significant variation in the decomposition results. This is due to the fact that the results of titanium dioxide itself, when compared with the two-dimensional structure of contact material with titanium dioxide exposed and fixed to less than a few percent of the surface area, have a tremendous difference. Will be. Further, when a planar two-dimensional structure is used as a contact material such as water or air, the structural strength of the two-dimensional structure can be obtained by viscous resistance, frictional resistance or the like.

[0005]

One of the problems to be solved by the present invention is that a fine powder of titanium dioxide is added to a permeable contact material formed by a curved filament (1) made of polypropylene, which is an organic compound produced. How to fix (6) to the wire surface (1). The idea is to decompose the organic matter by the photocatalytic reaction of titanium dioxide to support the peeling and falling off for as long as possible. The second problem is that the permeable contact material is required to have strong water resistance to withstand pressure such as water flow, viscous resistance of air flow and frictional resistance, structural strength with friction resistance, and a large specific surface area for storing dust and the like. , Thereby clogging, contact,
To produce a three-dimensional structurally permeable contact material (8) formed by a curved line of polypropylene which satisfies the porosity which secures the permeability and the contradictory structural conditions. Adhesive (4) is a method of fixing a large amount of fine powder of titanium dioxide (6) on the surface of the three-dimensional structure permeable contact material formed by a curved line of the organic compound polypropylene. And The permeable three-dimensional contact material (8) is made of a thermoplastic polypropylene of an organic compound as a raw material, and a large amount of titanium dioxide (6) is exposed and fixed to the surface of the striated organic compound with an adhesive (4). TiO2 contact material (8). In addition, a large amount of fine powder of titanium dioxide is exposed and fixed on the surface of the three-dimensionally permeable structure with an adhesive with an inorganic cement as a fixed bed so that the titanium dioxide does not peel off or fall off. Making the TiO2 contact material (8).
Three-dimensional permeable TiO with a large amount of titanium dioxide exposed and fixed
(2) Organic compounds, organic chlorine compounds, volatile hydrocarbons, NOx that penetrate, contact, and permeate water and natural atmosphere in a state where ultraviolet light is applied to the contact material (8) to cause a photocatalytic reaction of titanium dioxide (6). Oxidative decomposition of SOx, SOx, oil film, automobile exhaust gas, etc. A method of arranging and installing the three-dimensionally permeable TiO2 contacting material (8) for permeating, contacting, and transmitting the three-dimensionally permeable TiO2 contacting material (8) with water, natural atmosphere, and the like, and irradiating ultraviolet rays. A method of fixing titanium dioxide (6) to a metal or resin surface such as an inorganic concrete, iron material, or aluminum material having a flat two-dimensional structure, and using the two-dimensional structure as a contact material for a photocatalyst.

[0006]

Means for Solving the Problems The present invention is configured as follows to achieve the above object. A thermoplastic material is extruded from a plurality of nozzles having different wire diameters of large, medium, and small holes drilled in a mold, and the cooling liquid level is solidified before the wires are solidified. (The diameters of the wires vary depending on the thickness of the wire diameter and are welded to each other by drawing large, medium and small arcs). A method characterized by the production of a three-dimensional linear void structure having a three-dimensional structure composed of an irregular three-dimensional space (2) created by a formed linear filament. The linear three-dimensional void structure forming the three-dimensional structure is defined in a cylindrical shape, a flat shape, a box shape, or the like by a setting form, and is taken out at a constant speed by a take-off device.
Forms a three-dimensional three-dimensional void structure consisting of a cylindrical (FIG. 1), flat (FIG. 2), and box-shaped (FIG. 3) filaments that form a three-dimensional network formed by cooling and solidifying with cooling water. It is characterized by doing. The three-dimensional three-dimensional void structure (hereinafter referred to as the three-dimensional structure) formed by the filament (1) defined in the cylindrical shape (FIG. 1), the flat shape (FIG. 2), and the box shape (FIG. 3) is water. The three-dimensional structure, wherein the three-dimensional structure is a permeable contact material that allows natural air or the like to penetrate and permeate the structure. The three-dimensional structure in a three-dimensional network state defined by the cylindrical shape (FIG. 1), the flat shape (FIG. 2), and the box shape (FIG. 3) has a specific surface area of 60 m ² / m by changing the take-up speed. ^{3 ~100m 2}
/ M ³ , and a porosity of about 80.0% to 95.0%.
The cylindrical shape (FIG. 1), flat plate shape (FIG. 2), box shape (FIG. 3)
Wherein the powdery titanium dioxide (6) is fixed to the three-dimensional structure having a three-dimensional network consisting of a wide specific surface area and a high porosity of the filament (1). Original structure.

The adhesive (4) is applied to the entire surface (1) of the curved linear surface forming the three-dimensional structure, wherein the wide specific surface area and the high porosity are arbitrarily defined. It is applied and solidified (FIGS. 4 and 5) while the powdered anatase type titanium dioxide (6) is exposed on the surface of the applied adhesive (4). Alternatively, the titanium dioxide (6) immersed in water is stirred and solidified while being exposed on the entire surface (1) of the three-dimensional structure coated with the adhesive (4). 4) A photocatalyst-permeable three-dimensional structure composed of curved filaments fixed to (4) (FIGS. 1 and 2).

An adhesive (4) is applied to the entire surface (1) of the filaments constituting the three-dimensional structure according to claim 3, and the cement (5) kneaded with water before the adhesive is solidified. )
To the adhesive surface (4) to solidify the adhesive. Cement (5)
Before the powder is solidified, the powdered titanium dioxide (6) is sprayed on the entire cement surface (5) and solidified in a state of being exposed. Alternatively, a three-dimensional photocatalyst having titanium dioxide exposed and fixed, characterized in that cement (5) titanium dioxide (5) is kneaded with water and adhered and solidified on the wire surface (FIGS. 6 and 7). Contact material (8).

[0010] An adhesive (4) is applied to a surface of a metal, resin, or the like, such as concrete, iron material, aluminum material, etc., having a flat two-dimensional structure according to claim 4, and water is applied before the adhesive solidifies. The cement (5) kneaded with the above is attached and solidified. Before the cement (5) is solidified, titanium dioxide (6) is sprayed over the entire surface of the cement and solidified and supported in an exposed state.
Alternatively, a metal and resin product such as concrete, iron material, aluminum material and the like, which form a plate-shaped two-dimensional structure, characterized in that cement (5) titanium dioxide (6) is kneaded with water and adhered and solidified on the wire surface. Photocatalyst two-dimensional structure contact material fixed on the surface of. (FIGS. 8, 9, and 10)

The three-dimensionally transparent Ti according to claim 5
The irregular solid space (2) formed by the curved filaments (1) that fix the titanium dioxide (6) in a state where it is exposed on the surface of the o2 contact material (8) penetrates and contacts water and natural atmosphere. ,
In the case of transmission, the one-sided surface of the three-dimensional permeable TiO2 contact material (8) penetrates while touching the impermeable wall (9),
A contact method (FIG. 11), which relates to a method of arranging and installing the three-dimensionally permeable TIO2 contact material (8) to be contacted and transmitted, and applying ultraviolet light. When ultraviolet rays are applied to the three-dimensionally transparent TiO2 contact material (8) to permeate, contact, and transmit water and natural atmosphere, the curved filament (1) to which the titanium dioxide (6) constituting the structure is fixed cannot be formed. A contact method of permeating and contacting a regular three-dimensional space (2) from one side and allowing it to penetrate in a free direction (FIG. 12). The contact method (FIG. 13), which relates to a method of arranging the three-dimensionally permeable TIO2 contact material (8) obliquely and efficiently irradiating the three-dimensional structure with ultraviolet light from a fluorescent lamp from the side thereof (FIG. 13). .

[0012]

According to the present invention, the thermoplastic material is extruded from a plurality of nozzles having different wire diameters of large, medium and small with a melted wire <1> and cooled before the wire is solidified. Adjacent other lines that bend at the liquid surface (the diameter of the curve varies depending on the diameter of the wire, and can be welded together by drawing large, medium, and small arcs to create an irregular three-dimensional space) It comes into contact with the strip surface and welds, and it is taken off at a constant speed by a take-off device.
The wire (1) is fixed to a cylindrical shape (FIG. 1), a flat plate shape (FIG. 2), and a box shape (FIG. 3) that form a three-dimensional net formed by cooling and solidifying. The structure defined as a cylinder (FIG. 1), a flat plate (FIG. 2), and a box (FIG. 3) is adjusted to the speed of the take-off device to have a specific surface area of 50 m ^{2 to} 100 m ² / m ³ and a porosity of 80%. An arbitrary linear three-dimensional void structure of about ９５95.5% can be formed.

[0013] The tertiary shape defined as a cylindrical shape (FIG. 1), a flat plate shape (FIG. 2), and a box shape (FIG. 3) having a specific surface area of 60 m ^{2 to} 100 m ² / m ³ and a porosity of about 80% to 95.5%. If a water flow or air flow is used as a contact material that penetrates, contacts, or permeates the original structure, the water flow or air flow is split into two by each line and collides with an irregular three-dimensional space, causing the flow to collapse one after another. This increases the chances of contact with the wire surface and increases the contact efficiency. Water,
Pressurization of viscous resistance, frictional resistance, impact, etc. from the flow of air is transformed into individual line vibrations based on the welded contacts of elastic curved filaments, resulting in extreme viscosity and friction resistance. ,
The three-dimensional permeable contact material having impact resistance is a unique structure that can sufficiently withstand pressurization due to the flow of water, air, or the like.

The above-mentioned tertiary shape is defined as a cylindrical shape (FIG. 1), a flat plate shape (FIG. 2), and a box shape (FIG. 3) having a specific surface area of 50 m ^{2 to} 100 m ² / m ³ and a porosity of about 83% to 95.5%. When water and natural atmosphere penetrate, contact and permeate the original permeable TiO2 contact material, its large specific surface area complements the contact and storage properties, and the high porosity complements the clogging property and the permeability. This means that the large surface area of the line is that a large amount of fine powder of titanium dioxide having a size of several microns is exposed and fixed on the surface of the striated wire, and its adhesion, contactability and decomposability itself are obtained. The high porosity maintains the clogging and permeability of the voids due to the attachment when water and air flow penetrates, contacts, and penetrates, and irradiates ultraviolet rays to titanium dioxide on the deep line surface of the three-dimensional structure. These are unique structural functions created by the three-dimensional structure.

An adhesive (1) is applied to the surface of the striated line of the three-dimensionally permeable TiO2 contact material made of thermoplastic polypropylene.
The titanium dioxide exposed and fixed in step (1) does not peel or fall off from the adhesive (4) on the wire surface even after 18 months with the ultraviolet light of the artificial light source. A large amount of titanium dioxide exposed and fixed on the surface of the striated cement as a fixed floor is left for one year in a state of being exposed to the sun's natural light on a veranda, and the titanium dioxide is slightly peeled off. Sufficiently fixed to the surface of the filament.

The three-dimensionally permeable structure, which has been fixed in a large amount on the surface of a filament, which is an organic compound of thermoplastic polypropylene, with the titanium dioxide exposed by an adhesive (4), has passed 18 months with the ultraviolet light of an artificial light source. Even if titanium dioxide is peeled off
Not falling off means that if it is irradiated with ultraviolet rays from a fluorescent lamp, it will be economical that it can be sufficiently used as a contact material for water, natural atmosphere and the like. The three-dimensional transparent Ti
The contactability and decomposability of the o2 contact material show the results of titanium dioxide itself, indicating that there is a tremendous difference as compared with the conventional two-dimensional structure material supporting titanium dioxide. .

Ultraviolet rays are applied to the three-dimensional permeable TiO2 contact material in which a large amount of fine powder of titanium dioxide is exposed and fixed on the surface of the filament having a large surface area of about 60 m ^{2 to} 100 m ² / m ³ , and water and natural atmosphere are exposed. Organic compounds, organic chlorine compounds, volatile hydrocarbons, NO
It functions well as a contact material that oxidizes and decomposes x, SOx, oil, automobile exhaust gas, etc. with strong oxidizing power of photocatalytic reaction.

Conventional methods for supporting titanium dioxide on the surface of an inorganic material such as a two-dimensionally structured flat iron material, metal such as aluminum, tile, glass, and secondary concrete products are as follows:
A small amount is exposed on the surface of the material.In the case of a contact material such as water or natural atmosphere, the air current and the water flow will bounce off the surface and rebound. The ratio is naturally small, and its contact property and decomposability depend on the amount of titanium dioxide exposed and the opportunity for UV irradiation.

An adhesive is applied to the surface of an inorganic material such as a two-dimensionally planar iron material, metal such as aluminum, tile, glass, and a secondary product of concrete, and an inorganic cement is sprayed onto the surface to spray titanium dioxide. Adhere as a fixed bed, on which titanium dioxide is fixed. Alternatively, a method of kneading cement / titanium dioxide with water and spraying it onto the surface of the adhesive to solidify the adhesive can greatly expand the photocatalytic reaction application of titanium dioxide. The reason is that the amount of titanium dioxide fixed on the surface is large,
2. Titanium dioxide can be easily supported on the surface of the secondary structure. 3. Adhesive can be easily applied to smooth surface, uneven surface, etc. 4. Inorganic cement is made of titanium dioxide. With the fixed bed, no ultraviolet rays reach the adhesive and no decomposition reaction of titanium dioxide occurs, so that titanium dioxide can be stably supported for a long period of time.

The above three-dimensional permeable TiO2 contact material was installed as a contact material for an air activation device, and a test for confirming the bactericidal effect of Staphylococcus aureus was performed. 1. Testing organization: Kitasato Center for Environmental Studies Biology Laboratory 2. Test name: Bactericidal effect confirmation test of air activation device Test equipment: Air activation equipment consisting of a combination of black lamp and contact material with titanium dioxide fixed Test strain: Staphylococcus aur
4. eus IFO 12732 Staphylococcus aureus Test method: Put the test equipment in a 1m x 1m x 1 box,
The test is performed under the following operation time and operating conditions. 6. Action time 7. Operating conditions The spray of the bacteria is performed by spraying the bacterial suspension into the box at a pressure of 0.5 kg / cm ² using a sprayer having a spray particle having the highest distribution of 1.0 to 3.0 μm. The bacteria method is used for the collection of bacteria. 10 liter / min flow rate for 10 minutes (air 1
(00 liters) Air is sucked into the Inviger, and the collected bacteria are collected on a trypticase soy agar medium (BBL) at 36 ° C for 7 hours.
After culturing for 2 hours, the number of colonies generated is counted, and the number of suspended bacteria per 100 liters of air is determined. 8. Test results: The results of the bacterial count measurement are shown below. 9. Which was subjected to results strongest virus degradation test airborne high load test, a few bacteria were sprayed into the limited space of 1 m ³ 6.7
× 10 ⁴ is a load that is as high as about two orders of the number of bacteria suspended in the general atmosphere, and shows excellent decomposition ability as a contact material for TiO2 cement.

The ability of the three-dimensionally permeable TiO2 contact material as a contact material for oxidatively decomposing nitrogen oxides in natural atmosphere was verified. 1. Test name: Test on the performance of reducing nitrogen oxides in the atmosphere Test method: A test specimen having a thickness of 2.0 cm was subjected to a general air permeability test. 2. UV light is irradiated with natural light. Test method: Simultaneous measurement was performed at two points at the front entrance and the rear exit of a 2.0 cm thick test specimen, and the evaluation was made based on the concentration difference. 4. Test result: Natural air permeates in the in-plane direction of the flat three-dimensional permeable TiO2 contact material in a three-dimensional net state having a thickness of 2.0 cm,
It shows that suspended nitrogen oxides (NOx) decomposed on average 26.3%, and the three-dimensional permeable TiO2 contact material has excellent ability to oxidatively decompose nitrogen oxides (NOx) in natural atmosphere It is shown that.

[0022]

Embodiments of the present invention will be described below in detail.

[Brief description of the drawings]

FIG. 1 shows an outer peripheral surface of the three-dimensional structure forming a three-dimensional network,
2 shows a cross section of a cylindrical permeable three-dimensional structure in which an internal hollow portion is defined. FIG. 2 shows a cross-section of a permeable contact material in which the three-dimensional structure forming a three-dimensional network is fixed in a plate shape. FIG. 3 is a cross-sectional view of a permeable contact material in which the three-dimensional structure forming a three-dimensional network is defined in a box shape. FIG. 4 is a schematic cross-sectional view in which an adhesive (4) is applied to the peripheral surface of the filament main body (1) and solidified in a state where fine powder titanium dioxide (6) is exposed on the entire surface of the filament. FIG. 5 is a sectional view taken along line AA ′ of FIG. FIG.
Is to apply an adhesive (4) to the peripheral surface of the filament (1) forming the three-dimensional structure in a three-dimensional network state, and to bond and cement cement kneaded with water before the adhesive (4) solidifies. FIG. 4 is a schematic cross-sectional view in which a fine powder of titanium dioxide is applied to the cement surface, and the cement is solidified to fix the titanium dioxide in a large amount with the titanium dioxide exposed on the surface. FIG. 7 is a sectional view taken along the line AA ′ of FIG. FIGS. 8, 9, and 10 are schematic cross-sectional views in which titanium dioxide is fixed to the surface of a two-dimensional structure such as metals, resins, and the like, such as concrete, iron, and aluminum, with an adhesive and cement. FIG. 11 is a schematic cross-sectional view of a one-contact method in which a three-dimensional permeable structure having titanium dioxide exposed and fixed is adhered on one side to an opaque wall surface to permeate, contact, and transmit water and natural atmosphere. FIG.
2 is a cross-sectional view of a method in which the penetration, contact, and transmission of a three-dimensional permeable structure having titanium dioxide exposed and fixed to water and the natural atmosphere are not restricted. FIG.
3 is a cross-sectional view of a method in which a three-dimensionally permeable structure on which titanium dioxide is exposed and fixed is arranged obliquely and efficiently irradiates ultraviolet rays from a fluorescent lamp.

[Explanation of symbols]

 1. Streak 2. Irregular three-dimensional space Hollow part 4. Adhesive 5. Cement 6. 6. titanium dioxide 7. Two-dimensional opaque wall surface Three-dimensional permeable TiO2 contact material

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) C04B 41/65 C04B 41/65

Claims (5)

[Claims] 1. A thermoplastic raw material is extruded from a plurality of nozzles having different wire diameters of large, medium, and small holes drilled in a mold, and the thermoplastic raw material is extruded by a cooling liquid level before solidifying the wire. Make it meander (the diameter varies depending on the wire diameter,
A three-dimensional structure consisting of an irregular three-dimensional space (2), which is welded in contact with the surface of other adjacent filaments (1) which are welded to each other by drawing small and medium arcs, and which are formed by curved filaments A method characterized by the production of the formed linear three-dimensional void structure. The linear three-dimensional void structure forming the three-dimensional structure is cylindrical, flat,
In a cylindrical shape (FIG. 1) and a flat plate shape (FIG. 1), the wire (1) is solidified by cooling water and solidified by cooling water. 2), characterized in that a three-dimensional three-dimensional void structure formed by box-shaped (FIG. 3) filaments is formed. The three-dimensional three-dimensional void structure (hereinafter referred to as the three-dimensional structure) formed by the filament (1) defined in the cylindrical shape (FIG. 1), the flat shape (FIG. 2), and the box shape (FIG. 3) is water. The three-dimensional structure, wherein the three-dimensional structure is a permeable contact material that allows natural air or the like to penetrate and permeate the structure.
The cylindrical shape (FIG. 1), flat plate shape (FIG. 2), box shape (FIG. 3)
The three-dimensional structure forming a three-dimensional network state as defined in
By changing the take-off speed, the specific surface area is 60 m ² / m
^{3 to} 100 m ² / m ³ , porosity 80.0% to 95.0%
The three-dimensional structure, wherein the degree can be arbitrarily determined. The cylindrical shape (FIG. 1), the flat shape (FIG. 2),
Fixing the powdered titanium dioxide (6) to the three-dimensional structure having a three-dimensional network consisting of a large specific surface area and a high porosity of the filaments (1) in a box shape (FIG. 3). The three-dimensional structure described above. 2. An adhesive (4) is applied to the entire surface (1) of the curved striated line forming the three-dimensional structure in which a large specific surface area and a high porosity are arbitrarily defined. The powdered anatase-type titanium dioxide (6) is bonded and solidified in a state where the powdered anatase-type titanium dioxide (6) is exposed on the surface of the applied adhesive (4) (FIGS. 4 and 5).
Alternatively, the entire surface of the three-dimensional structure on which the adhesive (4) is applied by stirring the titanium dioxide (6) soaked in water (1)
A photocatalyst-permeable three-dimensional structure (FIG. 1 and FIG. 2) comprising curved filaments to which titanium dioxide (4) is fixed, wherein the three-dimensionally transparent T
io2 contact material (8)). 3. An adhesive (4) is applied to the entire surface (1) of the striated surface constituting the three-dimensional structure, and a cement (5) kneaded with water before the adhesive solidifies. Adhere to surface (4) and solidify. Before the cement (5) is solidified, powdery titanium dioxide (6) is sprayed onto the entire surface (5) of the cement and solidified in a state of being exposed. Alternatively, a three-dimensional photocatalyst having titanium dioxide exposed and fixed, characterized in that cement (5) titanium dioxide (5) is kneaded with water and adhered and solidified on the wire surface (FIGS. 6 and 7). Contact material (8)
(Hereinafter referred to as three-dimensional permeable TiO2 contact material). 4. An adhesive (4) applied to a surface of a metal, resin, etc., such as concrete, iron material, aluminum material, etc., having a flat two-dimensional structure, and kneaded with water before the adhesive solidifies. (5) is attached and solidified. Before the cement (5) is solidified, titanium dioxide (6) is sprayed over the entire surface of the cement and solidified and supported in an exposed state. Alternatively, a metal and resin product such as concrete, iron material, aluminum material and the like, which form a plate-shaped two-dimensional structure, characterized in that cement (5) titanium dioxide (6) is kneaded with water and adhered and solidified on the wire surface. Photocatalyst two-dimensional structure contact material fixed on the surface of. (FIG. 8,
(FIGS. 9 and 10) 5. An irregular three-dimensional space (2) formed by a curved filament (1) that constitutes the three-dimensional permeable TiO2 contact material (8) and fixes the titanium dioxide (6) in an exposed state on the surface. ) Permeates, contacts, and permeates water and the natural atmosphere,
Arrangement and installation of the three-dimensionally permeable TIO2 contacting material (8), which penetrates, contacts, and transmits the three-dimensionally permeable TiO2 contacting material (8) while one side thereof is in contact with the non-transparent wall surface (9); A contact method (FIG. 11), which relates to a method to be applied. When ultraviolet rays are applied to the three-dimensionally transparent TiO2 contact material (8) to permeate, contact, and transmit water and natural atmosphere, the curved filament (1) to which the titanium dioxide (6) constituting the structure is fixed cannot be formed. A contact method of permeating and contacting a regular three-dimensional space (2) from one side and allowing it to penetrate in a free direction (FIG. 12). The contact method according to the present invention relates to a method of arranging the three-dimensionally permeable TIO2 contact material (8) obliquely and irradiating the three-dimensionally permeable TIO2 contact material with ultraviolet light from a fluorescent lamp from the side thereof. (FIG. 13).