JP2001303274A - Coating molding and method for molding the same - Google Patents
Coating molding and method for molding the sameInfo
- Publication number
- JP2001303274A JP2001303274A JP2000124879A JP2000124879A JP2001303274A JP 2001303274 A JP2001303274 A JP 2001303274A JP 2000124879 A JP2000124879 A JP 2000124879A JP 2000124879 A JP2000124879 A JP 2000124879A JP 2001303274 A JP2001303274 A JP 2001303274A
- Authority
- JP
- Japan
- Prior art keywords
- tin
- powder
- product
- mixture
- noble metal
- 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.)
- Granted
Links
- 238000000576 coating method Methods 0.000 title claims abstract description 27
- 239000011248 coating agent Substances 0.000 title claims abstract description 26
- 238000000465 moulding Methods 0.000 title claims abstract description 12
- 238000000034 method Methods 0.000 title claims description 28
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 41
- 239000000843 powder Substances 0.000 claims abstract description 41
- 229910000510 noble metal Inorganic materials 0.000 claims abstract description 28
- 239000000203 mixture Substances 0.000 claims abstract description 21
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910001887 tin oxide Inorganic materials 0.000 claims abstract description 21
- 238000002347 injection Methods 0.000 claims abstract description 15
- 239000007924 injection Substances 0.000 claims abstract description 15
- 229910001128 Sn alloy Inorganic materials 0.000 claims abstract description 13
- 239000000919 ceramic Substances 0.000 claims abstract description 12
- 229910052751 metal Inorganic materials 0.000 claims description 19
- 239000002184 metal Substances 0.000 claims description 19
- 239000002245 particle Substances 0.000 claims description 8
- 239000007921 spray Substances 0.000 claims description 3
- 239000011941 photocatalyst Substances 0.000 abstract description 18
- 239000000243 solution Substances 0.000 abstract 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 56
- 239000010936 titanium Substances 0.000 description 15
- 229910052719 titanium Inorganic materials 0.000 description 15
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 14
- 239000011230 binding agent Substances 0.000 description 13
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 12
- 230000001699 photocatalysis Effects 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 238000000354 decomposition reaction Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 8
- 239000001301 oxygen Substances 0.000 description 8
- 229910052760 oxygen Inorganic materials 0.000 description 8
- 238000003980 solgel method Methods 0.000 description 8
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 7
- 239000007789 gas Substances 0.000 description 7
- 238000005422 blasting Methods 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- -1 superoxide ions Chemical class 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000004332 deodorization Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000005507 spraying Methods 0.000 description 5
- 229910001069 Ti alloy Inorganic materials 0.000 description 4
- 230000003373 anti-fouling effect Effects 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 230000001877 deodorizing effect Effects 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 238000000746 purification Methods 0.000 description 4
- 229910052709 silver Inorganic materials 0.000 description 4
- 239000004332 silver Substances 0.000 description 4
- 230000001954 sterilising effect Effects 0.000 description 4
- 230000000844 anti-bacterial effect Effects 0.000 description 3
- 230000003197 catalytic effect Effects 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 230000001590 oxidative effect Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 238000004659 sterilization and disinfection Methods 0.000 description 3
- 241000251468 Actinopterygii Species 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 241000252210 Cyprinidae Species 0.000 description 2
- 241000282412 Homo Species 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910006404 SnO 2 Inorganic materials 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000004566 building material Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000013522 chelant Substances 0.000 description 2
- 239000002781 deodorant agent Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 2
- 102100032566 Carbonic anhydrase-related protein 10 Human genes 0.000 description 1
- 102100033029 Carbonic anhydrase-related protein 11 Human genes 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 101000867836 Homo sapiens Carbonic anhydrase-related protein 10 Proteins 0.000 description 1
- 101000867841 Homo sapiens Carbonic anhydrase-related protein 11 Proteins 0.000 description 1
- 101001075218 Homo sapiens Gastrokine-1 Proteins 0.000 description 1
- 241000208125 Nicotiana Species 0.000 description 1
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 1
- 101100219325 Phaseolus vulgaris BA13 gene Proteins 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000011203 carbon fibre reinforced carbon Substances 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000005255 carburizing Methods 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000006806 disease prevention Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 210000005260 human cell Anatomy 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 229910001507 metal halide Inorganic materials 0.000 description 1
- 150000005309 metal halides Chemical class 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000013032 photocatalytic reaction Methods 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 239000010948 rhodium Substances 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
- Catalysts (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、脱臭、抗菌、防
汚といった分解機能及び親水機能など光触媒機能を有す
る酸化錫（SnO2）を、その光触媒機能を良好に発揮し得
る状態で成品の表面にコーティングすると共に、微量の
貴金属を担持させて前記光触媒コーティングの触媒機能
を助長すると共に、担持された貴金属の電荷分離効率の
向上による相乗効果により、空気等の気体、水その他の
液体等における有害物質の分解、浄化、人体の細胞等の
活性化等を行い得るコーティング成形物及びコーティン
グ成形物の成形方法に関し、より詳細には、金属又はセ
ラミック又はこれらの混合物から成る被処理成品の表面
に錫、錫合金又は錫と貴金属との混合物から成る粉体を
噴射することにより、被処理成品の表面に酸化錫被膜を
形成すると共に貴金属を担持させたコーティング成形物
及びその形成方法に関する。The present invention relates to a method for producing tin oxide (SnO 2 ) having a photocatalytic function such as a decomposing function such as deodorization, antibacterial and antifouling, and a hydrophilic function, in a state in which the photocatalytic function can be sufficiently exhibited. In addition to promoting the catalytic function of the photocatalytic coating by supporting a small amount of noble metal, the synergistic effect of improving the charge separation efficiency of the supported noble metal causes harm in gas such as air, water and other liquids. The present invention relates to a coated molded article capable of decomposing and purifying substances, activating human cells and the like, and a method of molding the coated molded article. More specifically, tin is applied to the surface of an article to be treated made of metal or ceramic or a mixture thereof. By spraying a powder consisting of a tin alloy or a mixture of tin and a noble metal, a tin oxide film is formed on Coated molded product was supported genus and a method of forming the same.
【０００２】[0002]
【従来の技術】従来から、優れた分解機能及び親水機能
を持つチタニアを主成分とする光触媒は多くの分野で利
用されている。その分解機能とは、太陽光や蛍光灯など
に含まれる紫外線をチタニアに照射すると、チタニア表
面に電子及び正孔が発生し、この電子が空気中の酸素を
還元してスーパーオキサイドイオン（O２）に、また正
孔はチタニア表面に付着した水分を酸化して水酸基ラジ
カル（OH）に変え、これらのスーパーオキサイドイオン
及び水酸基ラジカルが、チタニア表面の汚れなどの有機
化合物を酸化分解するものである。2. Description of the Related Art Conventionally, photocatalysts mainly composed of titania having excellent decomposition and hydrophilic functions have been used in many fields. When the titania is irradiated with ultraviolet rays contained in sunlight, fluorescent lamps, and the like, electrons and holes are generated on the titania surface, and these electrons reduce oxygen in the air to reduce superoxide ions (O 2 ) And the holes oxidize the moisture adhering to the titania surface to change into hydroxyl radicals (OH), and these superoxide ions and hydroxyl radicals oxidize and decompose organic compounds such as dirt on the titania surface. .
【０００３】また、親水機能とは前述のように紫外線の
照射によって生じたスーパーオキサイドイオン及び水酸
基がチタニア表面の疎水性分子を分解し、発生した水酸
基に空気中の水分が吸着して薄い水膜を作り、チタニア
表面が親水性を帯びるものであり、光触媒は前述の分解
機能と併せて、脱臭、抗菌、防汚を目的としてレンズ、
鏡、壁紙、カーテンなどの建材、家具などに多く利用さ
れている。[0003] As described above, the hydrophilic function means that superoxide ions and hydroxyl groups generated by the irradiation of ultraviolet rays decompose hydrophobic molecules on the titania surface, and moisture in the air is adsorbed on the generated hydroxyl groups to form a thin water film. The titania surface is hydrophilic, and the photocatalyst, together with the decomposition function described above, has a lens for the purpose of deodorization, antibacterial and antifouling,
It is widely used for building materials such as mirrors, wallpapers, curtains, and furniture.
【０００４】これらの光触媒機能を建材、家具といった
成品に利用する場合は、光触媒の主成分であるチタニア
を成品に含有させ、かつ十分な紫外線を照射させること
になるが、その一手法としてチタニア被膜を、対象とす
る被処理成品の表面に形成することが行われている。[0004] When these photocatalytic functions are used in products such as building materials and furniture, titania, which is a main component of the photocatalyst, is contained in the product and a sufficient amount of ultraviolet rays are irradiated. Is formed on the surface of a target product to be treated.
【０００５】そのチタニア被膜の形成方法としては、チ
タン自体が活性な金属であり、特に酸素との親和力が大
きいために酸化反応を起こしやすいことを利用して、チ
タン又はチタン合金から成る被処理成品の表面を酸化さ
せて、酸化被膜すなわちチタニア被膜を形成させる方法
がある。As a method for forming the titania film, an article to be treated made of titanium or a titanium alloy is utilized, taking advantage of the fact that titanium itself is an active metal, and particularly has a high affinity for oxygen and thus easily oxidizes. Is oxidized to form an oxide film, that is, a titania film.
【０００６】また、他のチタニア被膜の形成方法とし
て、ゾル・ゲル法とバインダ法が行われている。As other methods of forming a titania film, a sol-gel method and a binder method have been used.
【０００７】ゾル・ゲル法は、チタニアの前駆体である
チタニウムアルコキシドやチタニウムキレートなどの有
機系チタンのゾルをガラス、セラミックなどの耐熱性の
ある処理対象の被処理成品の表面にスプレーなどで塗布
し、乾燥させてゲルを作り、５００℃以上に加熱するこ
とで、強固なチタニア被膜を形成する方法である。被処
理成品の表面全体にチタニア粒子が存在するために、分
解力が高く、また高硬度なチタニア被膜を形成すること
ができる。In the sol-gel method, a sol of an organic titanium such as titanium alkoxide or titanium chelate, which is a precursor of titania, is applied to the surface of a heat-resistant product such as glass or ceramic by spraying. This is a method of forming a strong titania film by drying and drying to form a gel and heating it to 500 ° C. or higher. Since the titania particles are present on the entire surface of the article to be treated, a titania film having high decomposing power and high hardness can be formed.
【０００８】またバインダ法は、チタニア粒子を被処理
成品の表面にバインダで固定する方法であり、バインダ
としてはシリカなどの無機系、あるいはシリコーンなど
の有機系を用いている。ゾル・ゲル法との違いは、加熱
温度がバインダの硬化温度で済むため、約１００℃以下
の加熱で高温処理が不要な点である。[0008] The binder method is a method of fixing titania particles to the surface of a product to be treated with a binder, and uses an inorganic material such as silica or an organic material such as silicone as the binder. The difference from the sol-gel method is that since the heating temperature is only the curing temperature of the binder, heating at about 100 ° C. or less does not require high-temperature treatment.
【０００９】前述した従来の光触媒コーティング方法に
あっては、以下の問題点があった。The above-described conventional photocatalyst coating method has the following problems.
【００１０】（１）チタン又はチタン合金から成る被処
理成品の表面を酸化してチタニア被膜を形成する方法で
は、チタン自体が高価でありコスト高になるという問題
点や、またチタンは加工性が悪く利用分野が限られてし
まうという問題点があった。(1) The method of forming a titania film by oxidizing the surface of an article to be treated made of titanium or a titanium alloy is problematic in that titanium itself is expensive and costly, and that titanium has poor workability. There was a problem that the field of use was badly limited.
【００１１】（２）またゾル・ゲル法では、チタニアの
前駆体であるチタニウムアルコキシドやチタニウムキレ
ートなどの有機系チタンをチタニア被膜に変えるため
に、約５００℃以上の加熱処理を必要とするので、処理
対象の被処理成品に耐熱性が求められ、従ってガラス、
セラミックなどに限られ、仮に金属の表面にゾル・ゲル
法でチタニア被膜を形成しようとする場合には、高温加
熱処理によって、金属表面が酸化し、劣化や光沢の低下
など商品価値が下がるといった問題があった。(2) In the sol-gel method, a heat treatment at about 500 ° C. or more is required in order to convert an organic titanium such as titanium alkoxide or titanium chelate which is a precursor of titania into a titania film. Heat resistance is required for the product to be treated, and therefore glass,
If the titania film is to be formed on a metal surface by the sol-gel method, the problem is that the metal surface is oxidized by high-temperature heat treatment, and the commercial value is reduced, such as deterioration and loss of gloss. was there.
【００１２】さらに、ゾル・ゲル法では前記有機系チタ
ンを塗布する回数が多く、多くの手間がかかることや、
高価な設備を必要としコスト高であり、また有害な廃棄
物が発生するといった問題があった。Further, in the sol-gel method, the number of times of applying the organic titanium is large, and it takes much time and effort.
There are problems that expensive equipment is required, cost is high, and harmful waste is generated.
【００１３】（３）またバインダ法では、上記ゾル・ゲ
ル法の問題を解消し、多くの成品を処理対象とすること
ができる他、比較的コストが安いという反面、バインダ
として被処理成品との接着性が高く、しかも光触媒の分
解機能の影響を受けない材料を用いることが必要であ
り、バインダの選択が効果に影響を与えるという問題が
あった。(3) In the binder method, the problem of the sol-gel method can be solved and many products can be treated. In addition to the relatively low cost, the binder method is not compatible with the product to be treated. It is necessary to use a material that has high adhesiveness and is not affected by the decomposition function of the photocatalyst, and there is a problem that the selection of the binder affects the effect.
【００１４】またバインダ法ではゾル・ゲル法に比べ、
形成されたチタニア被膜の硬度が低いという問題があっ
た。これは、バインダ法によるチタニア被膜の硬度を高
めるためには、バインダを増やして接着力を高めれば良
いが、その場合、チタニアはバインダに対して相対的に
少なくなり、従って分解力が落ちる。逆に、バインダを
減らすと被処理成品の表面に露出するチタニアが増える
ので分解力が高まるが、接着力が低くなりチタニア被膜
が剥がれやすく、硬度が落ちるといった問題があった。In the binder method, compared to the sol-gel method,
There was a problem that the hardness of the formed titania film was low. In order to increase the hardness of the titania coating by the binder method, it is sufficient to increase the adhesive force by increasing the binder, but in that case, the titania becomes relatively small with respect to the binder, and thus the decomposition force is reduced. Conversely, when the amount of the binder is reduced, the titania exposed on the surface of the article to be treated increases, so that the decomposition force is increased. However, there is a problem that the adhesion is reduced, the titania film is easily peeled off, and the hardness is reduced.
【００１５】このような問題点を解消するために、本発
明の出願人は、被処理成品の表面にチタン又はチタン合
金の粉体を比較的簡易なブラスト法により噴射すること
で、被処理成品との接着力の高いチタニア被膜を光触媒
として被処理成品の表面に形成する光触媒コーティング
成形物及びその成形方法を出願している（特願平１０−
２３１７１号）。In order to solve such a problem, the applicant of the present invention has proposed that a powder of titanium or a titanium alloy is sprayed on the surface of a product to be treated by a relatively simple blasting method, so that the product to be treated is Application for a photocatalyst-coated molded article and a molding method for forming a titania film having a high adhesive strength with a photocatalyst on the surface of an article to be treated, as a photocatalyst (Japanese Patent Application No. 10-108)
No. 23171).
【００１６】[0016]
【発明が解決しようとする課題】前述の光触媒コーティ
ング成形物及びその成形方法による場合、成品の表面に
成された光触媒コーティングが有効に効果を発揮するか
否かは、光触媒が浴びる光、特に紫外線によるところが
大きい。そのためこの光触媒コーティング成形物は使用
される環境、条件等により、その分解機能、親水機能に
顕著な相違が現れる。特に、充分な光、紫外線の照射が
得られない環境において使用する場合には、光触媒を大
量にコーティングする必要があり、比較的コストが高価
なチタン又はチタン合金を大量に噴射する必要がある
等、コスト的な問題を有するものであった。In the case of the above-mentioned photocatalyst coating molded article and the molding method, it is determined whether or not the photocatalyst coating formed on the surface of the product exerts an effective effect by determining whether the photocatalyst is exposed to light, especially ultraviolet light. It depends largely. For this reason, the photocatalytic coating molded product has a remarkable difference in its decomposition function and hydrophilic function depending on the environment, conditions and the like in which it is used. In particular, when used in an environment where sufficient light and ultraviolet irradiation cannot be obtained, it is necessary to coat a large amount of a photocatalyst, and it is necessary to spray a relatively expensive titanium or titanium alloy in a large amount. However, it has a cost problem.
【００１７】また、噴射体としてのチタンは、融点が高
く被処理成品も高融点に限定され、又、チタン粉体が発
火する可能性を伴っていた。Further, titanium as an injection body has a high melting point, and the product to be treated is limited to a high melting point, and there is a possibility that titanium powder may ignite.
【００１８】そこで、本発明は、上記従来技術における
欠点を解消するためになされたものであり、使用環境の
変化、特に照射される紫外線量の変化による触媒の分解
機能、親水機能等に生じる差が少なく、従って使用環境
の変化によっても脱臭、抗菌、防汚等に安定した高い効
果を得ることができ、そして、窒素酸化物(Nox)の除去
においては、酸化チタンよりも高い効果を得ることがで
き、かつ、大量の光触媒をコーティングすることなく触
媒の機能を有効に発揮させることのできるコーティング
成形物及びその成形方法を提供することを目的とする。The present invention has been made in order to solve the above-mentioned drawbacks in the prior art, and there is a difference in a function of decomposing a catalyst and a hydrophilic function caused by a change in a use environment, particularly, a change in an amount of irradiated ultraviolet rays. Therefore, it is possible to obtain a stable and high effect on deodorization, antibacterial, antifouling, etc. even when the usage environment changes, and to obtain a higher effect than titanium oxide in removing nitrogen oxides (Nox). It is an object of the present invention to provide a coated molded article which can be used and can effectively exhibit the function of a catalyst without coating a large amount of a photocatalyst, and a method for molding the same.
【００１９】また、本発明は上記目的に加え、コーティ
ング成形物に担持された微量の貴金属による電荷分離の
効率が向上し、人体、その他の生物に対して好適な影響
を与えることのできる光触媒反応効果を激増するコーテ
ィング成形物及びその成形方法を提供することを目的と
する。Further, in addition to the above objects, the present invention improves the efficiency of charge separation by a trace amount of a noble metal carried on a coating molded product, and has a photocatalytic reaction capable of suitably affecting humans and other organisms. It is an object of the present invention to provide a coated molded product having a remarkable effect and a molding method thereof.
【００２０】[0020]
【課題を解決するための手段】上記目的を達成するため
に、本発明のコーティング成形物は、金属成品又はセラ
ミック又はこれらの混合体から成る成品の表面に酸化錫
被膜を形成すると共に、前記酸化錫被膜に微量の貴金
属、例えば光触媒コーティング組成物に対して重量比で
１０〜２０%の純度例えば９５．５％の銀を担持させて
成ることを特徴とする。In order to achieve the above-mentioned object, a coated molded article of the present invention forms a tin oxide film on the surface of a metal product or a ceramic or a mixture thereof, and forms the tin oxide film on the surface. The tin film is characterized in that a trace amount of a noble metal, for example, silver having a purity of 10 to 20% by weight, for example, 95.5%, based on the weight of the photocatalyst coating composition is supported.
【００２１】また、前記コーティング成形物は、金属成
品又はセラミック又はこれらの混合体から成る被処理成
品の表面に、錫、錫合金、又は錫と貴金属との混合物か
ら成る噴射粉体を噴射して成形することができる。The coating molded product is obtained by spraying an injection powder made of tin, a tin alloy, or a mixture of tin and a noble metal onto a surface of a product to be processed made of a metal product, a ceramic, or a mixture thereof. Can be molded.
【００２２】前記貴金属は、金、銀、銅、白金、パラジ
ウム、ロジウムなどの担持金属の粉体等を使用すること
ができ、前記錫、錫合金、又は錫又は、錫合金と貴金属
との混合物において、前記貴金属等担持金属の粉体０．
１wt%以上の混合体により前記噴射粉体とすることがで
きる。The noble metal may be a powder of a supported metal such as gold, silver, copper, platinum, palladium, and rhodium. The tin, tin alloy, tin, or a mixture of the tin alloy and the noble metal may be used. In the above, the powder of the supported metal such as the noble metal is used.
The above-mentioned sprayed powder can be obtained by using a mixture of 1 wt% or more.
【００２３】担持金属の貴金属等が多量となると、コス
ト高となり、また、錫の酸化が減少する。When the amount of the noble metal or the like as the supporting metal is large, the cost is increased and the oxidation of tin is reduced.
【００２４】さらに、前記錫、錫合金又は錫と貴金属と
の混合物の粉体を、平均粒径３００μm以下、好ましく
は３０〜１００μmとなし、この錫、錫合金、又は錫と
貴金属との混合物を含む前記噴射粉体を、噴射速度８０
m／sec以上又は噴射圧力０．３MPa以上で噴射すること
によりコーティング成形物を成形することができる。Further, the powder of the above-mentioned tin, tin alloy or a mixture of tin and a noble metal is made to have an average particle diameter of 300 μm or less, preferably 30 to 100 μm, and this tin, tin alloy or a mixture of tin and a noble metal is used. Containing the sprayed powder at an injection speed of 80
By spraying at m / sec or more or at a spray pressure of 0.3 MPa or more, a coating molded product can be formed.
【００２５】平均粒径３００μmを越えると、高速噴射
流に乗れないため、被膜が形成が困難であり、極端に粒
径の小さいものでは粉塵火災などの危険性を伴う。If the average particle size exceeds 300 μm, it is difficult to form a coating film because it cannot ride on a high-speed jet stream, and an extremely small particle size involves a risk of dust fire and the like.
【００２６】０．３MPa以下では、溶着、貴金属の担持
が困難であり、また、噴射速度の点からも酸化が促進で
きない。If the pressure is 0.3 MPa or less, it is difficult to deposit and carry a noble metal, and oxidation cannot be promoted in view of the injection speed.
【００２７】なお、前記噴射粉体は、その形状を球状又
は多角形状のいずれとすることもできる。The shape of the sprayed powder can be spherical or polygonal.
【００２８】また、本明細書では、主成分を錫とする粉
体を「錫、錫合金、又は錫と貴金属との混合物から成る
粉体」といい、この中には大気中の酸素と反応して表面
に安定な酸化被膜（SnO2等）が形成されているものも含
む。In this specification, a powder containing tin as a main component is referred to as “a powder composed of tin, a tin alloy, or a mixture of tin and a noble metal”, and includes a powder that reacts with oxygen in the atmosphere. And those having a stable oxide film (SnO 2 etc.) formed on the surface.
【００２９】ブラスト処理により、金属又はセラミック
又はこれらの混合体から成る被処理成品の表面に、錫、
錫合金、又は錫と貴金属との混合物から成る粉体（以
下、両者を総称して「錫粉体」という。）から成る噴射
粉体を高速の噴射速度で噴射すると、噴射粉体の被処理
成品の表面への衝突前後の速度変化により、エネルギー
不変の法則を考慮すると、熱エネルギーが生じる。この
エネルギー変換は、噴射粉体が衝突した変形部分のみで
行われるので、前記噴射粉体及び被処理成品の表面付近
に局部的に温度上昇が起こる。By the blast treatment, tin, tin,
When an injection powder made of a tin alloy or a powder of a mixture of tin and a noble metal (hereinafter, both are collectively referred to as “tin powder”) is injected at a high injection speed, the injection powder is processed. Due to the change in velocity before and after the product hits the surface, thermal energy is generated, taking into account the law of energy invariance. Since this energy conversion is performed only at the deformed portion where the injected powder collides, the temperature locally increases near the surfaces of the injected powder and the article to be processed.
【００３０】また、温度上昇は噴射粉体の衝突前の速度
に比例するので、噴射粉体の噴射速度を高速にすると、
噴射粉体及び被処理成品の表面の温度を上昇させること
ができる。このとき噴射粉体が被処理成品の表面で加熱
されるために、噴射粉体中の錫に含まれる錫が被処理成
品の表面に活性化吸着して拡散すると共に、大気中の酸
素と酸化反応を起こし、被処理成品の表面に光触媒機能
を有する酸化錫破膜が形成されると考えられる。Since the temperature rise is proportional to the speed of the powder before collision, if the injection speed of the powder is increased,
The surface temperature of the sprayed powder and the article to be treated can be increased. At this time, since the injected powder is heated on the surface of the product to be treated, tin contained in the tin in the injected powder is activated and adsorbed and diffused on the surface of the product to be processed, and at the same time, oxygen and oxygen in the atmosphere are oxidized. It is considered that a reaction occurs, and a tin oxide rupture film having a photocatalytic function is formed on the surface of the article to be treated.
【００３１】より詳細に説明するために、一般に行われ
る拡散浸透メッキを例に挙げると、例えば金属成品Ａを
金属粉末Ｂに埋めて温度ｔで拡散させると、浸炭が主と
してＣＯガスから行われるように、金属粉末Ｂから発生
する金属蒸気、又は金属粉末と添加剤の反応によって生
ずる金属ハロゲン化物蒸気から主として行われる。浸炭
を例にして考えると、鉄系の金属成品の表面に、ＣＯガ
スが単に外力や加熱その他の物理的方法によって簡単に
除去できるような物理的な付着をしただけでは、成品の
ＦｅとＣＯが反応を起こすことはできないが、さらに熱
その他のエネルギーをある一定以上与えるとＣＯガスは
Ｆｅ表面に活性化吸着をする。この活性化吸着をしたＣ
Ｏガスは二酸化炭素と炭素に熱解離をする。この反応に
よりできた炭素はＦｅの格子内に拡散して浸炭現象を起
こすものと考えられている。In order to explain in more detail, taking diffusion penetration plating which is generally performed as an example, for example, when a metal product A is buried in metal powder B and diffused at a temperature t, carburization is performed mainly from CO gas. This is mainly performed from metal vapor generated from the metal powder B or metal halide vapor generated by the reaction between the metal powder and the additive. Taking carburization as an example, if CO gas is merely physically attached to the surface of an iron-based metal product so that CO gas can be easily removed by external force, heating, or other physical methods, the product Fe and CO Cannot cause a reaction, but when heat or other energy is applied for a certain amount or more, the CO gas is activated and adsorbed on the Fe surface. This activated adsorbed C
O gas thermally dissociates into carbon dioxide and carbon. It is believed that the carbon produced by this reaction diffuses into the Fe lattice and causes carburization.
【００３２】上記の浸炭の現象を考慮すると、本発明に
おける光触媒コーティングは、被処理成品に以下に示す
ような過程で酸化錫被膜が形成されると考えられる。In consideration of the carburizing phenomenon described above, it is considered that the photocatalytic coating in the present invention forms a tin oxide film on the article to be treated in the following process.
【００３３】例えば、金属又はセラミック又はこれらの
混合物から成る被処理成品の表面に錫粉体を噴射速度８
０ｍ／ｓeｃ以上又は噴射圧力０．３ＭＰａ以上で噴射
し、被処理成品の表面に衝突させると衝突前後で、錫粉
体の速度が減少する。エネルギー不変の法則を考慮する
と、衝突時に被処理成品への衝突部が変形することによ
る内部摩擦により、熱エネルギーが生じて、この熱エネ
ルギーにより錫粉体が被処理成品の表面で加熱されるた
めに、錫が被処理成品に活性化吸着して拡散浸透し、さ
らには大気中の酸素と反応して酸化することにより、酸
化錫被膜が形成されると考えられる。For example, a tin powder is sprayed onto a surface of an article to be treated made of metal or ceramic or a mixture thereof at an injection speed of 8.
When the jet is injected at 0 m / sec or more or at an injection pressure of 0.3 MPa or more and collides with the surface of the article to be treated, the speed of the tin powder decreases before and after the collision. Considering the law of energy invariance, heat energy is generated due to internal friction caused by deformation of the collision part with the treated product at the time of collision, and this heat energy heats the tin powder on the surface of the treated product Then, it is considered that tin is activated and adsorbed on the article to be treated, diffuses and penetrates, and further reacts with oxygen in the atmosphere to oxidize, thereby forming a tin oxide film.
【００３４】なお、錫は融点が約２２３℃と低いため、
被処理成品の融点が低いものであっても上記溶融付着が
可能である。又、酸化錫は、価電子帯（ＶＢ）が酸素生
成電位よりも小さいので、酸化力の強さを示し、汚染物
質の分解処理に威力を発揮するものと考えられる。Since tin has a low melting point of about 223 ° C.,
The above-mentioned melt adhesion is possible even if the article to be treated has a low melting point. In addition, tin oxide has a valence band (VB) lower than the oxygen generation potential, and thus exhibits high oxidizing power, and is considered to be effective in decomposing pollutants.
【００３５】酸化錫は、2酸化チタンと共に、電極材料
として溶解せずに安定的に使用できる材料であり、従っ
て、水中においても溶解しない。Tin oxide is a material that can be used stably without dissolving with titanium dioxide as an electrode material, and therefore does not dissolve in water.
【００３６】また、この酸化錫被膜が形成される際、必
要に応じ錫粉体と共に貴金属を含む粉体が噴射されてい
るので、この粉体中に含まれる貴金属が酸化錫被膜中に
埋設された状態で、または酸化錫被膜の表面から一部露
出した状態で被処理成品の表面に付着し、微量の貴金属
がコーティング成形物の表面に担持される。When the tin oxide film is formed, a powder containing a noble metal is sprayed together with the tin powder as necessary, so that the noble metal contained in the powder is embedded in the tin oxide film. It adheres to the surface of the article to be treated in a state of being exposed or partially exposed from the surface of the tin oxide film, and a trace amount of noble metal is carried on the surface of the coated molded article.
【００３７】酸化錫被膜の形成と共に被処理成品の表面
に担持されこたれらの微量の貴金属は、例えば電荷分離
の効率が向上するものと考えられ、これにより、、酸化
錫被膜が有する防臭、殺菌等の効果や人体等に対する好
ましい触媒の作用効果が助長されてより一層の触媒能を
発揮するものと考えられる。It is considered that the trace amount of the noble metal carried on the surface of the article to be treated together with the formation of the tin oxide film improves, for example, the efficiency of charge separation. It is considered that the effect of sterilization and the like and the effect of the preferred catalyst on the human body and the like are promoted, and the catalytic activity is further enhanced.
【００３８】したがって、本発明によるコーティング成
形物は、酸化錫被膜の形成と、必要に応じ、微量の貴金
属の担持による相乗効果により、単に被処理成品の表面
に光触媒コーティングとして酸化錫被膜のみを形成した
場合に比較してより高い分解機能等を発揮する。Therefore, the coating molded product according to the present invention simply forms a tin oxide film only as a photocatalytic coating on the surface of the article to be treated, due to the synergistic effect of forming the tin oxide film and, if necessary, supporting a trace amount of noble metal. Demonstrates a higher decomposition function and the like as compared with the case where it is performed.
【００３９】なお、本発明は噴射粉体の衝突による温度
上昇を利用して、被処理成品の表面に酸化錫を活性化吸
着させ、かつ酸化反応させ、必要に応じ、貴金属を担持
させることを目的とするので、噴射粉体が前記熱エネル
ギーで瞬時に加熱されるよう、噴射粉体は重量の大きな
ショットではなく比較的小さなショットを用いる必要が
あるが、錫は他の金属などに比べ融点が低く、また熱電
導度も比較的低いために局所的に熱が集中しやすく、粒
径３００μmm以下、好ましくは粒径３０μｍ〜１００μ
ｍの粉末状の粉体を用いることが可能である。It should be noted that the present invention utilizes the temperature rise caused by the collision of the sprayed powder to activate and adsorb tin oxide on the surface of the article to be treated and cause an oxidation reaction to carry a noble metal as required. Since the target is used, it is necessary to use relatively small shots rather than heavy shots so that the powder is heated instantly by the thermal energy. Is low and the thermal conductivity is relatively low, so that heat is easily concentrated locally, and the particle size is 300 μm or less, preferably 30 μm to 100 μm.
m can be used.
【００４０】また、前述の温度上昇をより効率よくする
ためには、噴射粉体の形状を球状もしくは多角形状にす
ることが望ましい。In order to make the above-mentioned temperature rise more efficient, it is desirable that the shape of the sprayed powder be spherical or polygonal.
【００４１】また、錫は酸素との親和力が良く、表面に
酸化被膜を形成して安定化していることが多いが、この
酸化被膜を有する錫粉体を前述のように被処理成品の表
面に噴射した場合、被処理成品との衝突により瞬時に酸
化被膜は破壊し、したがって、錫が被処理成品の表面に
活性化吸着すると考えられる。Further, tin has a good affinity for oxygen and is often stabilized by forming an oxide film on its surface. As described above, tin powder having this oxide film is applied to the surface of the article to be treated. When sprayed, it is considered that the oxide film is instantaneously destroyed by the collision with the product to be treated, and thus the tin is activated and adsorbed on the surface of the product to be treated.
【００４２】[0042]
【発明の実施の形態】〔製造実施例〕本実施例で使用し
たブラスト装置は重力式ブラスト装置であるが、エア式
であれば吸込式のサイホン式、あるいは他のブラスト装
置でも良い。DESCRIPTION OF THE PREFERRED EMBODIMENTS [Manufacturing Example] The blasting device used in this embodiment is a gravity type blasting device, but may be a suction type siphon type or another type of blasting device as long as it is an air type.
【００４３】被処理成品であるアルミナボール（Al２O
３：９２．７％、SiO２：５．８％、直径８mm）を重力
式ブラスト装置のノズル先端に対峙して設けられたバレ
ル籠内に約１０kg投入し、このバレル籠内に投入された
セラミックボールに均等に噴射粉体を衝突させることが
できるようこのバレル籠を回転しながら噴射粉体を約１
０分間下記の処理条件で噴射して光触媒コーティング処
理を行った。Alumina balls (Al 2 O) to be treated
3: 92.7%, SiO 2: 5.8%, about 10kg poured into the barrel basket provided opposite the diameter 8 mm) to a nozzle tip of gravity blasting machine, thrown into the barrel basket While rotating the barrel cage, the injected powder is applied for about 1 hour so that the injected powder can collide with the ceramic balls evenly.
The photocatalytic coating treatment was performed by spraying for 0 minutes under the following treatment conditions.
【００４４】なお、本実施例では噴射粉体を構成する錫
粉体として純錫（Sn:99.5％、平均粒径45μm）を使用し
ている。 実施例１In this embodiment, pure tin (Sn: 99.5%, average particle size: 45 μm) is used as the tin powder constituting the sprayed powder. Example 1
【００４５】[0045]
【表１】 上記の加工条件により得られたコーティング成形物たる
アルミナボールは、その表面に酸化錫被膜が形成され好
適なコーティング成形物が形成された。[Table 1] The alumina ball, which is a coated molded product obtained under the above processing conditions, had a tin oxide film formed on its surface, and a suitable coated molded product was formed.
【００４６】このように形成されたコーティング成形物
は、そのままで、または容器に詰める等して室内、トイ
レ、自動車内、その他各種の場所に配置することによ
り、光触媒コーティングの分解機能などにより消臭、防
臭効果を発揮する消臭剤又は防臭剤として使用できる
他、マイナスイオン等により、例えば人体の細胞等を活
性化させ、または周辺環境のマイナスイオンの増加によ
り人にリフレッシュ感を与える等の効果をも有する。The coating molded product thus formed is placed in a room, toilet, automobile, or other various places as it is or packed in a container, etc., so that the photocatalytic coating has a deodorizing function. In addition to being able to be used as a deodorant or deodorant that exhibits a deodorizing effect, it also has the effect of activating, for example, cells of the human body with negative ions, or giving a refreshing feeling to humans by increasing negative ions in the surrounding environment. It also has
【００４７】また、本発明のコーティング成形物は、例
えば液体中においても好適に分解機能等を発揮し、且つ
溶解しないため、例えば水中に投入することにより、こ
のコーティング成形物の投入された水の防臭、殺菌、防
汚を図ることができる。特に紫外線の充分な照射を受け
られない室内や、容器内等において使用する場合におい
ても好適に分解機能等を発揮し、例えば観賞魚用水槽、
池、花瓶、浴槽、下水用の升内に直接又はネット内に封
入する等して本発明のコーティング成形物を投入するこ
とにより、水が悪臭を発生したりヌメリを発生したりす
ること等を好適に防止することができ、また水槽や池に
おいては観賞魚の病気発生防止等にも寄与するものとな
る。Further, the coated molded article of the present invention suitably exhibits a decomposing function and the like even in a liquid, and does not dissolve. Deodorization, sterilization and antifouling can be achieved. Especially when used indoors or inside a container where sufficient irradiation of ultraviolet rays cannot be received, it exhibits a decomposing function suitably, for example, an aquarium fish tank,
Ponds, vases, bathtubs, and the like, by putting the coating molded product of the present invention directly or in a net in a sewage box, etc., to prevent water from generating a bad smell or generating slime, etc. It can be suitably prevented, and also contributes to prevention of disease occurrence of ornamental fish in a water tank or pond.
【００４８】なお、前記実施例にあっては、被処理対象
としてアルミナボールを使用した例について説明したが
被処理対象の材質はこれに限定されるものではなく、各
種の金属又はセラミックに対して適用可能である。In the above-described embodiment, an example was described in which alumina balls were used as the object to be processed. However, the material to be processed is not limited to this, and various materials or ceramics may be used. Applicable.
【００４９】また、被処理対象となる金属成品又はセラ
ミック成品の形状は、前記実施例における球状のものに
限定されず、また、前述のように比較的小さいものであ
る必要はなく、その形状、大きさは制限されない。The shape of the metal or ceramic product to be processed is not limited to the spherical shape in the above-described embodiment, and need not be relatively small as described above. The size is not limited.
【００５０】比較例１Comparative Example 1
【表２】 以上説明した本発明のコーティング成形物を浄化装置に
用いた比較例1の比較結果試験を表３に示す。[Table 2] Table 3 shows a comparison result test of Comparative Example 1 in which the coating molded product of the present invention described above was used in a purification device.
【００５１】なお、下記表３に示す試験例において、被
処理対象は、アルミナのボールであり、他の処理条件に
ついては前記製造実施例と同様である。In the test examples shown in Table 3 below, the object to be treated is an alumina ball, and the other treatment conditions are the same as in the above-mentioned production example.
【００５２】また、本例において使用したコーティング
成形物は、アルミナのボール表面に酸化錫被膜のみを形
成して成る実施例１のコーティング成形物０．８kgを浄
化装置の200×300mmステンレス網にセットし、一方、比
較例は、アルミナボールに上記加工条件での銀担持酸化
チタン被膜を形成して成るコーティング成形物１kgを浄
化装置の200×300mmステンレス網にセットし、いずれも
紫外線ランプ（１５w）を照射して試験を行った。The coated molded product used in the present example was prepared by forming 0.8 kg of the coated molded product of Example 1 in which only a tin oxide film was formed on the surface of an alumina ball in a 200 × 300 mm stainless steel net of a purification device. On the other hand, in a comparative example, 1 kg of a coating molded product formed by forming a silver-supported titanium oxide film on alumina balls under the above-mentioned processing conditions was set in a 200 × 300 mm stainless steel screen of a purifying device, and each was an ultraviolet lamp (15 w). Was irradiated to perform a test.
【００５３】また、試験に使用したプラスチック水槽
は、室内に配置された、容量１０００リットル、浄化装
置（３００リットル）及びヒータ（設定水温２５℃）付
きのもので、この水槽内に体長約２０cmの鯉２０匹を飼
育している。また、屋内紫外線ランプ使用、前記水槽の
底には、砂利が約５０kgが敷かれている。The plastic water tank used for the test was a room equipped with a capacity of 1000 liters, a purifier (300 liters) and a heater (set water temperature of 25 ° C.). I breed 20 carps. An indoor ultraviolet lamp is used. About 50 kg of gravel is spread on the bottom of the water tank.
【００５４】試験例１Test Example 1
【表３】 以上の試験結果から、特に室内の紫外線ランプの照射に
よっても実施例１における酸化力により光触媒コーティ
ングの触媒機能により、消臭、殺菌等の分解機能等を有
効に発揮することが確認された。[Table 3] From the above test results, it was confirmed that the catalytic function of the photocatalyst coating by the oxidizing power in Example 1 effectively exerted the decomposition functions such as deodorization and sterilization even when irradiated with the ultraviolet lamp in the room.
【００５５】実施例２Embodiment 2
【表４】 比較例２ 比較例１と同様に製造した。[Table 4] Comparative example 2 It manufactured like Comparative example 1.
【００５６】次表５で示す試験例２で使用した水槽は、
屋外コンクリート池、容量12ｔ、浄化装置（８００リッ
トル）及び循環水温１８℃で、この水槽内に体長約２０
cm〜80cmの鯉１００匹を飼育している。また、南向き屋
外浄化装置の500×600mmステンレス網にそれぞれ、実施
例2及び比較例2をセットした。The water tank used in Test Example 2 shown in Table 5 was as follows:
Outdoor concrete pond, capacity 12t, purification device (800 liters) and circulating water temperature 18 ° C.
The breeder breeds 100 carps of 80 cm to 80 cm. In addition, Example 2 and Comparative Example 2 were set on a 500 × 600 mm stainless steel net of a south-facing outdoor purification device, respectively.
【００５７】試験例２Test Example 2
【表５】 実施例2においては錫が溶融付着時に表面が酸化するた
め溶出しないものと考えられる。又、銀を担持すること
により、より効果が得られたものと考えられる。[Table 5] In Example 2, it is considered that tin is not eluted because the surface is oxidized during the fusion adhesion. Further, it is considered that the effect was more obtained by supporting silver.
【００５８】実施例３Embodiment 3
【表６】 他は、実施例２と同じ、被処理成品がここでは小石であ
るが、表面全体に酸化錫被膜及び銀の担持も行われた。 試験例３ 実施例３と比較例１をそれぞれ100g、３０００cc,5人乗
りの乗用車、UVガラス使用で車内に放置した。共に約１
時間で、タバコ臭が消失した。[Table 6] Other than the above, as in Example 2, the product to be treated is pebbles here, but a tin oxide film and silver were also carried on the entire surface. Test Example 3 Each of Example 3 and Comparative Example 1 was left in a car of 100 g, 3000 cc, five-seater passenger car, and using UV glass. About 1
Over time, the smell of tobacco disappeared.
【００５９】以上の試験結果より、本願例にあっては光
触媒コーティングによるの消臭効果が得られるものと考
えられる。 試験例４ 上述実施例２と比較例１の窒素酸化物除去性能評価試験
結果を以下に示す。 試験条件 試験温度：15℃ 試験ガス：窒素酸化物（NO+NO2） 相対湿度：50% 紫外線照射条件：フ゛ラックライト15W×2本を7cmから照射ON, O
FFは、ONからOFFへの移行 無光：照明なし 10×10cmの箱にφ8mmのアルミナホ゛ール計175gを1段に並べた。From the above test results, it is considered that the photocatalytic coating can provide a deodorizing effect in the present example. Test Example 4 The results of the nitrogen oxide removal performance evaluation test of Example 2 and Comparative Example 1 are shown below. Test conditions Test temperature: 15 ° C Test gas: Nitrogen oxide (NO + NO 2 ) Relative humidity: 50% Ultraviolet irradiation condition: Irradiation of 2x Flux Light 15W x 7cm from ON, O
FF shifts from ON to OFF No light: No illumination A total of 175 g of φ8 mm alumina balls were arranged in a single box of 10 × 10 cm.
【００６０】[0060]
【表７】 [Table 7]
【００６１】[0061]
【表８】 以上のように、窒素酸化物の除去において、本願発明品
の効果が極めて高いことが実証された。[Table 8] As described above, it was proved that the present invention was extremely effective in removing nitrogen oxides.
【００６２】[0062]
【発明の効果】以上説明した本発明の構成により、本発
明のコーティング成形物は、光触媒コーティング又は光
触媒コーティングと共に貴金属を担持させたことによ
り、コーティングされた光触媒の触媒として防臭、殺
菌、NOx除去等の分解機能が発揮され、又、右機能が助
長されてより一層の分解機能等を発揮するものとなっ
た。According to the constitution of the present invention described above, the coated molded article of the present invention can support a photocatalyst coating or a noble metal together with a photocatalytic coating, thereby deodorizing, sterilizing, removing NOx, etc. as a catalyst of the coated photocatalyst. , And the right function was promoted to exhibit a further decomposition function.
【００６３】また、本発明のコーティング成形物の成形
方法にあっては、ブラスト法という比較的簡単な方法に
より、コストの低廉な錫を主たる素材としたから、比較
的安価に本発明のコーティング成形物を得ることができ
る。Further, in the method of forming a coated molded product of the present invention, tin is used as a main material, which is inexpensive by a relatively simple method called blasting. You can get things.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｂ０１Ｊ 37/02 ３０１ Ｂ０１Ｊ 37/02 ３０１Ｍ Ｂ３２Ｂ 15/04 Ｂ３２Ｂ 15/04 Ｚ Ｃ０４Ｂ 41/87 Ｃ０４Ｂ 41/87 Ｚ Ｃ２３Ｃ 24/04 Ｃ２３Ｃ 24/04 24/08 24/08 Ｂ // Ｂ３２Ｂ 9/00 Ｂ３２Ｂ 9/00 Ａ Ｆターム(参考） 4F100 AA19 AA20 AA28B AA28C AB01A AB21D AB21E AB24B AB24C AB24D AB24E AB31D AB31E AD00A BA02 BA03 BA04 BA05 BA06 BA07 BA10B BA10C BA13 DA01 DE01D DE01E EH46 EH46B EH46C EH462 EH61 EH61D EH61E EH612 GB08 GB16 GB33 JC00 JL06 YY00D YY00E 4G069 AA03 AA08 BA01A BA01B BA13A BA16A BA16B BA17 BA48A BB02A BB02B BB02C BB04A BB04B BC22A BC22B BC22C BC32A BC32B BC33A BC69A CA01 CA10 CA11 CA17 EA07 EB18X EB18Y FA03 FA04 FB24 4K044 AA01 AA11 BA08 BA10 BB01 BC02 CA23 CA27 CA29 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) B01J 37/02 301 B01J 37/02 301M B32B 15/04 B32B 15/04 Z C04B 41/87 C04B 41/87 Z C23C 24/04 C23C 24/04 24/08 24/08 B // B32B 9/00 B32B 9/00 A F term (reference) 4F100 AA19 AA20 AA28B AA28C AB01A AB21D AB21E AB24B AB24C AB24D AB24E AB31D AB31E AD00A BA02 BA03 BA04 BA05 BA06 BA07 BA10B BA10C BA13 DA01 DE01D DE01E EH46 EH46B EH46C EH462 EH61 EH61D EH61E EH612 GB08 GB16 GB33 JC00 JL06 YY00D YY00E 4G069 AA03 AA08 BA01A BA01B BA13A BA16A BA16B BA17 BA48A BB02A BB02B BB02C BB04A BB04B BC22A BC22B BC22C BC32A BC32B BC33A BC69A CA01 CA10 CA11 CA17 EA07 EB18X EB18Y FA03 FA04 FB24 4K044 AA01 AA11 BA08 BA10 BB01 BC02 CA23 CA27 CA29
Claims (7)
合体から成る成品の表面に酸化錫被膜を形成して成るコ
ーティング成形物。1. A coated article comprising a tin oxide film formed on a surface of a metal product, a ceramic product or a mixture thereof.
を担持して成ることを特徴とする請求項１記載のコーテ
ィング成形物。2. The coated molded article according to claim 1, wherein a noble metal is carried on the coated molded article.
合体から成る被処理成品の表面に、錫、錫合金又は錫又
は錫合金と貴金属との混合物から成る粉体から成る噴射
粉体を噴射して、請求項１又は２いずれか１項記載のコ
ーティング成形物を成形することを特徴とするコーティ
ング成形物の成形方法。3. An injection powder made of tin, a tin alloy, or a powder made of a mixture of tin or a tin alloy and a noble metal is sprayed onto a surface of a product to be processed made of a metal product, a ceramic, or a mixture thereof. A method for molding a coated molded article, comprising molding the coated molded article according to any one of claims 1 and 2.
ら成る噴射粉体は、前記貴金属の粉体０．１wt%以上を
含む混合物から成ることを特徴とする請求項３記載のコ
ーティング成形物の成形方法。4. The coated molded article according to claim 3, wherein said spray powder comprising a mixture of tin or a tin alloy and a noble metal comprises a mixture containing 0.1 wt% or more of said noble metal powder. Molding method.
／sec以上又は噴射圧力０．３MPa以上で行うことを特徴
とする請求項３又は４記載のコーティング成形物の成形
方法。5. An injection speed of the injection powder is 80 m.
The method according to claim 3 or 4, wherein the method is carried out at a pressure of at least / sec or at a pressure of at least 0.3 MPa.
物から成る粉体は、平均粒径３００μｍ以下、好ましく
は３０〜１００μｍである請求項３〜５いずれか１項記
載のコーティング成形物の成形方法。6. The coating molded product according to claim 3, wherein the powder comprising tin, a tin alloy, or a mixture of tin and a noble metal has an average particle size of 300 μm or less, preferably 30 to 100 μm. Molding method.
る請求項３〜６いずれか１項記載のコーティング成形物
の成形方法。7. The method for forming a coated product according to claim 3, wherein the sprayed powder has a spherical or polygonal shape.
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|---|---|---|---|
| JP2000124879A JP3335338B2 (en) | 2000-04-25 | 2000-04-25 | Coating molding and molding method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005257137A (en) * | 2004-03-10 | 2005-09-22 | Osaka Gas Co Ltd | Member for stove trivet and stove trivet |
| JP2009270176A (en) * | 2008-05-09 | 2009-11-19 | Fuji Kihan:Kk | Method for forming surface-strengthening film and surface-strengthened product |
| JP2016527078A (en) * | 2013-07-05 | 2016-09-08 | 日東電工株式会社 | Transparent photocatalytic coating and method for producing the same |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111514318B (en) * | 2020-04-15 | 2021-06-22 | 中国科学院宁波材料技术与工程研究所 | Sterilization method of cold spraying electrothermal coating |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005257137A (en) * | 2004-03-10 | 2005-09-22 | Osaka Gas Co Ltd | Member for stove trivet and stove trivet |
| JP2009270176A (en) * | 2008-05-09 | 2009-11-19 | Fuji Kihan:Kk | Method for forming surface-strengthening film and surface-strengthened product |
| JP2016527078A (en) * | 2013-07-05 | 2016-09-08 | 日東電工株式会社 | Transparent photocatalytic coating and method for producing the same |
| US10391482B2 (en) | 2013-07-05 | 2019-08-27 | Nitto Denko Corporation | Transparent photocatalyst coating and methods of manufacturing the same |
| US10710063B2 (en) | 2013-07-05 | 2020-07-14 | Nitto Denko Corporation | Transparent photocatalyst coating and methods of manufacturing the same |
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