WO2024252508A1 - 樹脂部材 - Google Patents
樹脂部材 Download PDFInfo
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- WO2024252508A1 WO2024252508A1 PCT/JP2023/020927 JP2023020927W WO2024252508A1 WO 2024252508 A1 WO2024252508 A1 WO 2024252508A1 JP 2023020927 W JP2023020927 W JP 2023020927W WO 2024252508 A1 WO2024252508 A1 WO 2024252508A1
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- resin
- titanium oxide
- resin member
- particles
- coating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/03—Powdery paints
Definitions
- the present invention relates to a resin member, and more specifically, to a resin member that has self-cleaning properties.
- Titanium oxide has a photocatalytic effect that causes oxidation when exposed to light energy, and can oxidize and decompose organic matter such as pollutants and odorous substances. In addition, it also exhibits antibacterial and antiviral effects, so by coating the surface of a component with it, it can impart self-cleaning properties that keep the surface clean.
- the photocatalytic effect of titanium oxide is higher when the crystal structure is anatase than when it is rutile, and the anatase titanium oxide transforms to rutile at temperatures above 700°C, reducing the photocatalytic effect.
- Patent Document 1 discloses that by enlarging the particle size of titanium oxide particles through granulation, it is possible to suppress the transition of titanium oxide from anatase to rutile due to heat during thermal spraying, and to improve the remaining ratio of anatase titanium oxide.
- the photocatalytic coating material described in Patent Document 1 does not sufficiently suppress the transition of titanium oxide to the rutile type, resulting in low photocatalytic effect and deterioration of the resin substrate due to the oxidizing action of titanium oxide.
- the present invention was made in consideration of the problems associated with the conventional technology, and its purpose is to provide a resin component with a photocatalytic coating that has a high photocatalytic effect on the surface and can prevent deterioration of the resin substrate.
- the inventors discovered that the above objective could be achieved by forming a photocatalytic coating with a sea-island structure in which anatase-type titanium oxide particles are dispersed like islands in a sea of metal material, and thus completed the present invention.
- the resin workpiece of the present invention has a photocatalytic coating on the surface of a resin substrate.
- the photocatalytic coating is characterized in that it has a sea-island structure in which anatase type titanium oxide particles are dispersed like islands in a sea of metal material.
- the method for producing a resin member of the present invention is a method for producing the above-mentioned resin member. and a coating step of spraying the raw material particles in a non-molten state onto the surface of the resin substrate to form a photocatalytic film,
- the raw material particles include metal-plated anatase titanium oxide particles and metal particles
- the coating step includes a process of lowering the temperature of the raw material particles colliding with the resin substrate to 100 to 150° C.
- the method further comprises a step of polishing and/or grinding the surface of the formed photocatalytic coating to expose the anatase type titanium oxide particles.
- the photocatalytic coating has a sea-island structure in which anatase-type titanium oxide particles are dispersed in the form of islands in a sea of metal material, making it possible to provide a resin part with a photocatalytic coating that achieves both a high photocatalytic effect and prevention of deterioration of the resin substrate.
- FIG. 2 is a cross-sectional view showing an example of the structure of the resin member of the present invention.
- the resin member of the present invention is provided on the surface of a resin substrate with a photocatalytic coating having a sea-island structure in which anatase type titanium oxide particles are dispersed like islands in a sea of metal material.
- the photocatalytic coating of the present invention has anatase-type titanium oxide particles dispersed like islands in a sea of metal material, and the anatase-type titanium oxide particles are surrounded by the metal material.
- the light that enters the photocatalytic coating is reflected by the sea of metal material and does not penetrate to the vicinity of the resin substrate, so even if the titanium oxide particles are present near the resin substrate, deterioration of the resin substrate due to the oxidizing action of the titanium oxide particles can be prevented.
- a sea of metallic material means that metallic materials are joined together and are continuous, and the joining may be not only metallurgical but also mechanical, and does not mean that there are no interfaces or voids in the metallic material.
- the photocatalytic coating can be formed by cold spraying raw material particles containing metal-plated anatase titanium oxide particles and metal particles onto a resin substrate.
- the cold spray method is a method of forming a coating by colliding raw material particles in a solid phase with a substrate using a supersonic flow of working gas without melting or gasifying the raw material particles.
- This cold spray method allows the photocatalytic coating to be formed at low temperatures, and there is no need to heat the anatase-type titanium oxide particles above their transition temperature, as is the case with other thermal spray methods. This prevents the titanium oxide particles from transitioning from anatase to rutile, and provides a high photocatalytic effect.
- the Vickers hardness of the above metal material is preferably 700 (Hv) or less, more preferably 500 (Hv) or less, and even more preferably 400 (Hv) or less.
- the above metal material also plays a role as a binder that forms the photocatalytic coating, and by having a Vickers hardness of the metal material of 700 (Hv) or less, the metal particles that make up the sea of the above metal material undergo significant plastic deformation upon collision, improving the strength of the coating.
- the above metal materials are ductile and malleable, and can be plastically deformed, so the metal particles that form the sea of metal material sprayed onto the resin substrate by the cold spray method sink into the resin substrate, plastically deform and adhere, forming irregular irregularities at the interface with the resin substrate and bonding through an anchor effect.
- the metal particles that penetrate into these irregularities and adhere closely to the resin substrate not only bond to the resin substrate, but also undergo plastic deformation due to subsequent collisions with metal particles and metal-plated titanium oxide particles, receiving and holding these subsequently colliding raw material particles and preventing them from bouncing back.
- metal particles collide with the metal particles that are bonded to the resin substrate by the anchor effect described above, and these are metallurgically bonded to each other, forming a sea of metal material.
- the metal-plated anatase-type titanium oxide particles in the raw material particles are metallurgically bonded to the metal material through the metal plating on their surfaces, forming a photocatalytic coating in which the anatase-type titanium oxide particles are dispersed like islands in a sea of metal material.
- the above photocatalytic coating preferably has a cross-sectional area percentage of the sea of metal material of more than 50% and not more than 95%, more preferably 55-90%, and even more preferably 60-80%, although this depends on the thickness.
- the area percentage of the sea of the metal particle material is 50 area % or more, a photocatalytic coating with high adhesion strength can be formed, and when it is 95 area % or less, the content of anatase type titanium oxide particles is increased, resulting in a high photocatalytic effect. That is, if the area percentage of the metal particles exceeds 95%, the titanium oxide particles are reduced and the photocatalytic effect is reduced. Also, if it is 50% or less, as described below, the metal particles also play a role as a binder, and the coating strength may decrease.
- the metallic material particles of a single metal or an alloy can be used.
- the metal element include copper (Cu), aluminum (Al), nickel (Ni), chromium (Cr), iron (Fe), silver (Ag), titanium (Ti), zinc (Zn), and magnesium (Mg).
- the above alloy may be an alloy containing 50 mass% or more of one metal selected from the group consisting of copper (Cu), aluminum (Al), nickel (Ni), chromium (Cr), iron (Fe), silver (Ag), titanium (Ti), zinc (Zn), and magnesium (Mg).
- one metal selected from the group consisting of copper (Cu), aluminum (Al), nickel (Ni), chromium (Cr), iron (Fe), silver (Ag), titanium (Ti), zinc (Zn), and magnesium (Mg).
- copper and silver have antibacterial properties, so it is preferable to use copper or silver alone or an alloy containing 50% or more by mass of these metals.
- the use of elemental copper (Cu), aluminum (Al), nickel (Ni), chromium (Cr), and silver (Ag) can impart luster and shine to the photocatalytic coating, while the use of elemental iron (Fe) and titanium (Ti) can form a matte photocatalytic coating.
- the tactile feel can be improved, while a surface roughness (Ra) in the range of 5 to 25 ⁇ m can create a luxurious feel with a grained texture, and by making the surface roughness (Ra) less than 5 ⁇ m, the metallic luster can be improved.
- the average particle size of the metal particles is preferably 10 to 50 ⁇ m, and more preferably 20 to 40 ⁇ m. This increases the kinetic energy of the motion during cold spraying, improving the efficiency of film formation. Furthermore, when the thickness of the photocatalytic coating is about 100 ⁇ m, if the particle size of the metal particles exceeds 50 ⁇ m, the metal particles will be more likely to fall off during polishing and grinding, and in addition, the metal particles will become larger, reducing the uniform dispersion of the titanium oxide particles on the surface of the photocatalytic coating.
- the metal-plated titanium oxide particles can be anatase-type titanium oxide particles with an average particle size of 0.01 ⁇ m to 2 ⁇ m that are plated with a metal or alloy that can be used for the metal material.
- the above metal-plated titanium oxide particles can be formed by supporting a palladium (Pd) catalyst on the surface of titanium oxide particles and then performing electroless plating.
- anatase-type titanium oxide particles that support copper within the particles exhibit a photocatalytic effect not only with ultraviolet light but also with visible light, making them suitable for use indoors where there is little ultraviolet light, as they can provide self-cleaning properties.
- titanium oxide particles is TKP-103 manufactured by Teika.
- the resin member of the present invention has self-cleaning properties, so it can be used favorably for automobile resin parts such as handles and door knobs that are prone to adhesion of sebum stains, as well as for transport equipment resin parts, electronic equipment resin parts, home appliance resin parts, office resin parts, housing resin parts, and medical and hygiene resin parts.
- the method for producing a resin part of the present invention includes a coating step in which raw material particles containing metal-plated anatase-type titanium oxide particles and metal particles are sprayed onto the surface of a resin substrate by a cold spray method to form a photocatalytic coating, and a step in which the surface of the photocatalytic coating formed in the coating step is polished and/or ground to expose the anatase-type titanium oxide particles.
- the cold spray method uses a working gas at about 500 to 600°C, which does not melt the raw material particles, and forms a coating by colliding the raw material particles in a solid state with a substrate using a supersonic flow of the working gas in an unmolten state without melting or gasifying the raw material particles.
- this cold spray method the metal particles in the raw material particles collide at supersonic speed and undergo plastic deformation to form a coating. Unlike other thermal spray methods, this method can minimize changes in the properties of the raw material particles due to heat, preventing the titanium oxide particles from transitioning from anatase to rutile.
- the nozzle spraying the raw material particles is placed close to the metal substrate to prevent a drop in the temperature and kinetic energy of the raw material particles, causing the raw material particles to collide with the metal substrate.
- a coating is formed on a resin substrate, so the distance between the nozzle that sprays the raw material particles and the resin substrate is increased to lower the temperature of the working gas below the heat resistance temperature of the resin substrate.
- the working gas is sprayed at 500-600°C, and the temperature is lowered to 100-150°C before the raw material particles collide with the resin substrate. This makes it possible to prevent deformation and deterioration of the resin substrate due to the working gas.
- the working gas expands and its temperature drops when it is sprayed from the nozzle. If the distance between the nozzle and the resin substrate is too close, the temperature of the working gas will not drop sufficiently and the resin substrate will melt. Conversely, if the distance is too far, not only will the working gas become too cold, but the speed of the raw material particles will decrease and adhesion to the resin substrate will decrease, so it is preferable that the distance between the nozzle and the resin substrate is about 150 mm.
- the resin substrate is a thermoplastic resin
- the kinetic energy of the raw material particles is converted into thermal energy by the collision, and the thermoplastic resin at the site of collision with the raw material particles melts locally and fuses to the colliding raw material particles, which, combined with the bonding due to the anchor effect described above, improves the bonding strength between the resin substrate and the photocatalytic coating.
- the speed at which the raw material particles can be embedded into the resin substrate by the cold spray method and bonded by the anchor effect is preferably 200 to 500 m/s, although this depends on factors such as the hardness of the resin substrate.
- the method for manufacturing a resin member of the present invention includes a step of polishing and grinding the surface of the formed photocatalytic coating after the above-mentioned coating step.
- the titanium oxide particles in the raw material particles have a metal-plated surface, so by polishing and grinding the surface of the photocatalytic coating, the metal plating comes off and the anatase-type titanium oxide is exposed on the surface of the photocatalytic coating, thereby exerting the photocatalytic effect.
- Example 1 A palladium (Pd) catalyst was supported on the surface of anatase type titanium oxide particles (JA-1 manufactured by Teika Co., Ltd.), and electroless plating was performed to obtain anatase type titanium oxide particles having a copper-plated surface.
- anatase type titanium oxide particles JA-1 manufactured by Teika Co., Ltd.
- Cold spray conditions Apparatus: PCS-1000 (manufactured by Plasma Giken Kogyo)
- the cross section of the resin member produced in Example 1 was observed using energy dispersive X-ray spectroscopy (SEM-EDX) and elemental analysis of the photocatalytic coating was performed. As a result, it was confirmed that anatase-type titanium oxide particles were dispersed in islands in a sea of metal material, forming an island structure, and that deterioration of the resin substrate by titanium oxide could be prevented.
- SEM-EDX energy dispersive X-ray spectroscopy
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- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Catalysts (AREA)
Abstract
Description
そして、上記光触媒被膜が、金属材料の海にアナターゼ型酸化チタン粒子が島状に分散した海島構造であることを特徴とする。
そして、非溶融状態の原料粒子を上記樹脂基材表面に吹き付けて光触媒被膜を形成する被覆工程を備え、
上記原料粒子が、金属メッキされたアナターゼ型酸化チタン粒子と金属粒子とを含み、
上記被覆工程が、上記樹脂基材に衝突する上記原料粒子の温度を100~150℃に低下させる処理を含み、
さらに、形成した光触媒被膜光触媒被膜の表面を研磨及び/又は研削し、上記アナターゼ型酸化チタン粒子を露出させる工程を有することを特徴とする。
本発明の樹脂部材について詳細に説明する。
本発明の樹脂部材は、樹脂基材の表面に、金属材料の海にアナターゼ型酸化チタン粒子が島状に分散した海島構造の光触媒被膜を備える。
すなわち、金属粒子の面積%が95%を超えると酸化チタン粒子が減少して光触媒作用が低下してしまう。また、50%以下のであると、後述するように、金属粒子はバインダーとしての役割をも担っているので、被膜強度が低下することがある。
上記金属単体としては、銅(Cu)、アルミニウム(Al)、ニッケル(Ni)、クロム(Cr)、鉄(Fe)、銀(Ag)、チタン(Ti)、亜鉛(Zn)、マグネシウム(Mg)を挙げることができる。
これにより、コールドスプレー時の運動の運動エネルギーが大きくなって被膜形成効率を向上させることができる。
また、光触媒被膜の厚さが100μm程度である場合、金属粒子の粒径が50μm超えると研磨研削時に金属粒子が脱落し易くなり、加えて、金属粒子が大きくなるため光触媒被膜表面の酸化チタン粒子の均一分散性が低下してしまう。
次に、上記樹脂部材を製造する方法について詳細に説明する。
本発明の樹脂部材の製造方法は、コールドスプレー法により、金属メッキされたアナターゼ型酸化チタン粒子と金属粒子とを含む原料粒子を樹脂基材表面に吹き付け、光触媒被膜を形成する被覆工程と、上記被覆工程で形成した光触媒被膜光触媒被膜の表面を研磨及び/又は研削し、上記アナターゼ型酸化チタン粒子を露出させる工程を有する。
アナターゼ型酸化チタン粒子(テイカ製JA-1)の表面にパラジウム(Pd)触媒を担持させて無電解メッキし、表面が銅でメッキされたアナターゼ型酸化チタン粒子を得た。
コールドスプレー条件
装置:PCS-1000(プラズマ技研工業製)
作動ガス : N2ガス、噴射圧3MPa、噴射温度600℃
ノズル~基材間距離 : 150mm
(樹脂基材に衝突時の原料粒子の温度100℃、原料粒子の衝突速度300m/s)
2 光触媒被膜
21 アナターゼ型酸化チタン粒子
22 金属材料
3 樹脂基材
Claims (8)
- 樹脂基材表面に光触媒被膜を備える樹脂部材であって、
上記光触媒被膜が、金属材料の海にアナターゼ型酸化チタン粒子が島状に分散した海島構造であることを特徴とする樹脂部材。
- 上記光触媒被膜は、その断面の金属材料の海の面積%が50%を超え95%以下であることを特徴とする請求項1に記載の樹脂部材。
- 上記金属材料のビッカース硬度が、700(Hv)以下であることを特徴とする請求項1に記載の樹脂部材。
- 上記樹脂基材と光触媒被膜とが、少なくともアンカー効果により接合していることを特徴とする請求項1に記載の樹脂部材。
- 表面粗さ(Ra)が、25μm以下であることを特徴とする請求項1に記載の樹脂部材。
- 自動車用樹脂部品、輸送機器用樹脂部品、電子機器用樹脂部品、家電用樹脂部品、事務用樹脂部品、住宅用樹脂部品及び医療衛生用樹脂部品から成る群から選ばれた樹脂部品を構成していることを特徴とする請求項1~5のいずれか1つの項に記載の樹脂部材。
- 上記請求項1~5のいずれか1つの項に記載の樹脂部材を製造する方法であって、
非溶融状態の原料粒子を上記樹脂基材表面に吹き付けて光触媒被膜を形成する被覆工程を備え、
上記原料粒子が、金属メッキされたアナターゼ型酸化チタン粒子を含み、
上記被覆工程が、上記樹脂基材に衝突する上記原料粒子の温度を100~150℃に低下させる処理を含み、
さらに、形成した光触媒被膜光触媒被膜の表面を研磨及び/又は研削し、上記アナターゼ型酸化チタン粒子を露出させる工程を有することを特徴とする樹脂部材の製造方法。
- 上記被覆工程が、上記原料粒子を200~500m/sで上記樹脂基材に衝突させる処置を含むことを特徴とする請求項7に記載の樹脂部材の製造方法。
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202380098237.5A CN121152678A (zh) | 2023-06-06 | 2023-06-06 | 树脂部件 |
| PCT/JP2023/020927 WO2024252508A1 (ja) | 2023-06-06 | 2023-06-06 | 樹脂部材 |
| JP2025525482A JPWO2024252508A1 (ja) | 2023-06-06 | 2023-06-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2023/020927 WO2024252508A1 (ja) | 2023-06-06 | 2023-06-06 | 樹脂部材 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2024252508A1 true WO2024252508A1 (ja) | 2024-12-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2023/020927 Ceased WO2024252508A1 (ja) | 2023-06-06 | 2023-06-06 | 樹脂部材 |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPWO2024252508A1 (ja) |
| CN (1) | CN121152678A (ja) |
| WO (1) | WO2024252508A1 (ja) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000334311A (ja) * | 1999-05-28 | 2000-12-05 | Shinshu Ceramics:Kk | 光触媒機能体及びその製造方法 |
| JP2005058900A (ja) * | 2003-08-12 | 2005-03-10 | Nobuyuki Koura | 金属と光触媒粒子との複合材及びその製造方法 |
| JP3944551B2 (ja) | 2004-02-26 | 2007-07-11 | 地方独立行政法人 岩手県工業技術センター | 光触媒被覆材の製造方法 |
| JP2008524010A (ja) * | 2004-12-17 | 2008-07-10 | インテグラン・テクノロジーズ・インコーポレーテッド | 微細粒金属およびポリマー材料を含む物品 |
| JP2009066594A (ja) * | 2007-08-17 | 2009-04-02 | Kyushu Institute Of Technology | 可視光応答型光触媒皮膜とその製造方法及びそれらを用いた殺菌方法並びに殺菌装置 |
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2023
- 2023-06-06 CN CN202380098237.5A patent/CN121152678A/zh active Pending
- 2023-06-06 JP JP2025525482A patent/JPWO2024252508A1/ja active Pending
- 2023-06-06 WO PCT/JP2023/020927 patent/WO2024252508A1/ja not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000334311A (ja) * | 1999-05-28 | 2000-12-05 | Shinshu Ceramics:Kk | 光触媒機能体及びその製造方法 |
| JP2005058900A (ja) * | 2003-08-12 | 2005-03-10 | Nobuyuki Koura | 金属と光触媒粒子との複合材及びその製造方法 |
| JP3944551B2 (ja) | 2004-02-26 | 2007-07-11 | 地方独立行政法人 岩手県工業技術センター | 光触媒被覆材の製造方法 |
| JP2008524010A (ja) * | 2004-12-17 | 2008-07-10 | インテグラン・テクノロジーズ・インコーポレーテッド | 微細粒金属およびポリマー材料を含む物品 |
| JP2009066594A (ja) * | 2007-08-17 | 2009-04-02 | Kyushu Institute Of Technology | 可視光応答型光触媒皮膜とその製造方法及びそれらを用いた殺菌方法並びに殺菌装置 |
Non-Patent Citations (1)
| Title |
|---|
| BERNASCONI ROBERTO, CARRARA ELENA, HOOP MARCUS, MUSHTAQ FAJER, CHEN XIANGZHONG, NELSON BRADLEY J., PANÉ SALVADOR, CREDI CATERINA, : "Magnetically navigable 3D printed multifunctional microdevices for environmental applications", ADDITIVE MANUFACTURING, vol. 28, 1 August 2019 (2019-08-01), NL , pages 127 - 135, XP093246969, ISSN: 2214-8604, DOI: 10.1016/j.addma.2019.04.022 * |
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| CN121152678A (zh) | 2025-12-16 |
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