TW201217553A - Coated article and method for making the same - Google Patents

Abstract

A coated article with durable antibacterial effect is provided. The coated article includes a substrate, a base layer formed on the substrate, a plurality of TiO2 layers and a plurality of Cu-Zn alloy layers formed on the base layer. The base layer is a titanium layer. Each one of the TiO2 layers and each one of the Cu-Zn alloy layers are deposited on each other. A portion of each Cu-Zn alloy layer embeds into each adjacent TiO2 layer due to porous structure of the TiO2 layer, which leads the Cu and Zn ions release slowly. So the coated article has long-lasting antibacterial effect. TiO2 of the TiO2 alloy layers can strengthen the antibacterial effect. A method for making the coated article is also provided.

Description

201217553 VI. Description of the Invention: [Technical Field] The present invention relates to a coated member and a method for preparing the coated member [0001] [Prior Art] [0002] The spread and infection of harmful bacteria is severely threatened by human health. In particular, in recent years, the spread and infection of SARS virus, avian flu, etc., have rapidly developed the application of antibacterial materials in the daily life. The application of antibacterial metals (^, such as Ag, etc.) on a substrate to form an antibacterial coated member has a wide range of applications on the market. The sterilization mechanism of the antibacterial coating member is: during the use of the coating member, the antibacterial metal coating will slowly release metal ions such as cu2+, Zn2+, and when a trace amount of metal ions having gypsum contact with the fine microorganisms, the metal The ions are strongly adsorbed by the wheel force and the negatively charged microorganisms. The metal ions penetrate the cell wall and react with the sulfhydryl groups and ammonia-grade proteins on the proteins in the bacteria, so that the eggs are destroyed by the materials, and the cells lose their ability to divide and proliferate and die. To achieve the purpose of sterilization. [0003] However, the thickness of the metal antibacterial coating is generally relatively thin, and is easy to wear, thereby reducing the resistance of the metal antibacterial coating to a lower level [invention] [0004] In view of this, it is necessary to provide an antibacterial A more durable film of money [0005] [0006] In addition, it is necessary to provide a method for preparing the above (four) pieces. - a key film member comprising a substrate, a primer layer formed on the surface of the rider, the primer layer being a layer of ruthenium. The plating material is formed on the bottom layer of the surface layer 2 and the layer of the epoch alloy, the plurality of T103 and plural 099136033 Form number Α0101 Page 4 / Total 12 pages 201217553

The Cu-Zn alloy layers are alternately arranged. [0007] A method for preparing a coated member, comprising the steps of: [0008] providing a substrate; [0009] forming a primer layer on a surface of the substrate, the primer layer being a Ti layer; Forming a Ti〇2 layer on the surface; forming a Cu-Zn alloy layer on the surface of the Ti〇2 layer; [0012] repeatedly forming a TiOg layer and a Cu-Zn alloy layer alternately to form an outermost layer of Ti〇2 layer Mineral film parts. [0013] The coated member of the present invention alternately sputters a Ti〇2 layer and a Cu-Zn alloy layer on the surface of the substrate, and the Ti〇2 layer is formed into a loose porous structure, and a part of the Cu-Zn alloy layer is referred to In the Ti〇2 layer, the rapid dissolution of Cu-Zn metal ions in the Cu-Zn alloy layer is hindered, so that the dissolution of Cu-Zn metal ions can be sustained, and the Cu-Zn alloy layer has a long-lasting antibacterial effect. At the same time, Ti〇2 in the Ti〇2 layer itself has an antibacterial effect, which can enhance the antibacterial effect of the coated parts and correspondingly prolong the service life of the coated parts. [0014] Referring to FIG. 1, a coated article 100 according to a preferred embodiment of the present invention includes a substrate 10, a primer layer 20 formed on the surface of the substrate 10, and a plurality of layers formed on the surface of the primer layer 20. 2 layers 30 and a plurality of Cu-Zn alloy layers 40, the plurality of Ti〇2 layers 30 and the plurality of Cu-Zn alloy layers 40 are alternately arranged, wherein the layer directly combined with the primer layer 20 is 1^〇9 layer 30, The outermost layer is 1^〇9 layer 30. In this embodiment, the number of layers of the plurality 1"2 layer 30 and the plurality of Cu-Zn alloy layers 40 may be 5 to 20 layers, respectively. 099136033 Form No. A0101 Page 5 of 12 0992062998-0 201217553 [0015] The material of the substrate 10 may be titanium or a titanium alloy. [0016] The underlayer 20 can be formed by magnetron sputtering. The underlayer is a Ti layer. The underlayer 20 may have a thickness of 100 to 200 nm. [0017] The plurality of layers 2 can be formed by magnetron sputtering. Each Ti〇2 layer 30 may have a thickness of 50 to 100 nm. When the layer 2 is sputtered, a lower deposition temperature and a deposition bias are used, so that the layer 2 has a better porous structure, and the Cu-Zn alloy layer 40 can be partially embedded. Go to the 1^〇2 layer 30. [0018] The plurality of Cu-Zn alloy layers 40 may be formed by magnetron sputtering. Each of the Cu-Zn alloy layers 40 may have a thickness of 200 to 300 nm. At the interface of each of the Cu-Zn alloy layer 40 and the adjacent each of the 乜〇2 layers 30, a portion of the Cu-Zn alloy layer 40 is embedded in the 〇2 layer 30, thereby bonding the Cu-Zn alloy layer 40. It acts as a holding and can release the dissolution of Cu-Zn metal ions, so that the Cu-Zn alloy layer 40 has a long-lasting antibacterial effect. [0019] A method for preparing a coated member 100 according to a preferred embodiment of the present invention includes the following steps: [0020] A substrate 10 is provided, which may be made of titanium or a titanium alloy. [0021] The substrate 10 is subjected to surface pretreatment. The surface pretreatment may include conventional steps of polishing the substrate 10, ultrasonic cleaning with anhydrous ethanol, and drying. [0022] The surface of the substrate 10 subjected to the above treatment is subjected to argon plasma cleaning to further remove impurities remaining on the surface of the substrate 10, and to improve the bonding force between the surface of the substrate 10 and the subsequent plating layer. The specific operation and process parameters are: base 099136033 Form number A0101 Page 6 / Total 12 pages 0992062998-0 201217553 [0023]

[0024] 991 [0025] 099136033 material 10 is placed in a coating chamber of a magnetron sputtering coating machine (not shown), the coating chamber is evacuated to 3xl0_5torr, and then the flow rate into the coating chamber is 100~300sccm (standard Argon gas (purity: 99.999%) in a state of ML/min), and a bias of -200 to -800 V was applied to the substrate 1 Torr, and the surface of the substrate 10 was subjected to argon electropolymerization cleaning, and the cleaning time was 3 〜 lOmin. A layer of the underlayer 20 is sputtered on the surface of the substrate after argon plasma cleaning by magnetron sputtering, and the underlayer 20 may be a Ti layer. Sputtering the underlayer 20 is performed in the magnetron deposition coating machine. The metal target is used, and the titanium target is a DC magnetron power source. When the plating is off, the titanium target is turned on, and argon gas is used as the working gas. The flow rate of the argon gas may be 300 to 500 sccm, and the substrate is subjected to a pressing pressure of -50 to -150 V, and the temperature of the coating chamber may be 1 〇〇 to i5 〇. «c, the film time can be 5~8min. The underlayer 20 may have a thickness of 1 〇〇 to 200 nm. The magnetron killing method continues to be used to sputter a Ti〇 2 layer 30 on the surface of the underlying layer 2〇. The titanium stem is made of a straight magnetic control power source using metal titanium. During the laser plating, the titanium target is turned on, and the reaction gas oxygen is introduced. The oxygen flow rate can be 2 〇 to 40 sccm, and the working gas argon gas is introduced. The argon oxygen flow rate can be 2 〇〇 to 350 sccm, and a DC bias is applied to the substrate 1 〇. The DC bias voltage can be _50~-150V, the temperature of the substrate 10 can be 70~13〇〇c, and the coating time can be 2~3min. The thickness of the layer 2 can be 50 to 1 〇〇 nm. Sputtering The Ti〇2 layer 30 uses a lower deposition temperature and a lower deposition bias to achieve a better porous structure of the Ti 2 layer 30. The Cu_Zn alloy layer 40 is sputtered on the surface of the layer 2 by magnetron sputtering. A copper-zinc alloy target is used, and the mass percentage of the steel in the steel-zinc alloy target is 8〇%~9〇%. The copper-shaped copper-shaped form number A0101 page 7/12 pages 0992062998-0 201217553 Control power supply. During sputtering, the copper-zinc alloy target is turned on, and the working gas nitrogen gas is introduced. The flow rate of the argon gas can be 20 to 50 sccm, and the coupling pulse bias is applied to the substrate. The turning pulse bias voltage can be -180 to -350 V, and the pulse frequency. It is 1 〇KHz, the pulse width is 2〇/zS, the temperature of the substrate 1〇 can be 7〇~13〇C, and the coating time can be 2~3min. The Cu-Zn alloy layer 40 may have a thickness of 200 to 3 Å. [0028] [0030] [0031] Referring to the above steps, repeating the alternate sputtering ^ (layer and Cu - Zn alloy layer, and the outermost layer is Ti 2 layer 30. Alternate splashing The number of plating times may be 5 to 20 times in total. The total thickness of the plurality of Ti〇2 layers 30 and the plurality of Cu-Zn alloy layers 4〇 may be 1 to 8/zm. The coated member 100 alternates on the surface of the substrate 10. The Ti layer is sputtered. The gold layer 40, the Τι〇2 layer 30 is formed into a loose porous structure, so that a part of the alloy layer 40 is intended to be added to the layer 2 〇, and the 合金% alloy layer 40 is Rapid dissolution of Cu-Zn metal ions acts as a barrier to slow release of Cu-Zn metal ions. The alloy layer (10) has a long-lasting antibacterial effect; while Tin " 2 in the Ti〇 layer 30 2 itself has an antibacterial effect 'enhanced the antibacterial effect of the coated member 1 ,, and the life of the coated member 100 is extended in response. FIG. 1 is a cross-sectional view of a rhodium-plated part according to a preferred embodiment of the present invention. [Main component symbol description] Coated parts: 100 Substrate: 10 dozens of bottom layer: 2 0 099136033 Form number A0101 Page 8 / Total 12 pages 0992062998-0 : 40 201217 553 [0032] 1^0. Layer: 30

* L

[0033] Cu-Zn alloy layer

099136033 Form No. A0101 Page 9 of 12 0992062998-0

Claims (1)

201217553 VII. Patent application scope: The mineral film member includes a substrate, a primer layer formed on the surface of the substrate, and the primer layer is τι′, the improvement is that the component further comprises a plurality of layers and a plurality of Μ 合金 alloy layers formed on the surface of the primer layer. The plural Τι〇 layer and the complex Cu-Zn alloy layer are alternately arranged. 2 The mineral film member according to the application of the patent scope, wherein the material of the substrate is Qin or Qin alloy. The coated member according to claim 1, wherein the underlayer is formed by magnetron reduction, and the underlayer has a thickness of 1 〇〇 to _ (10). If the application of the full-length coating is described, the plurality of Ti layer layers are formed in a magnetically controlled manner, and the thickness of each of the Ti02 layers is 502 to 100 nm. The mineral film member according to claim 1, wherein the plurality of Cu-Zn alloy layers are formed by magnetron sputtering, each of which. The thickness of the ^^^ alloy layer is 200 to 300 nm. The coated member according to claim 1, wherein the key film member is directly bonded to the underlayer, and the outermost layer of the plated member is a Ti layer. U. The coated article of claim 1, wherein the total thickness of the plurality of layers and the plurality of Cu-Zn alloy layers is i~gAm. A method for preparing a coated member, comprising the steps of: providing a substrate; forming a primer layer on a surface of the substrate, the underlayer being a Ti layer; forming a Ti〇2 layer on the surface of the underlayer; The surface of the 2 layers forms a Cu-Zn alloy layer; 099136033 Form No. A0101 Page 10 / Total 12 Page 0992062998-0 201217553 ίο Ο 11 Ο 12 Repeatly forming a Ti〇2 layer and a Cu-Ζη alloy layer to form the outermost layer is ^ 〇 2 layers of coated parts. The method for preparing a rhodium-plated member according to claim 8, wherein the step of forming the underlayer is as follows: a solid t (magnetic) method, a gold argon gas H is used as a gas, and an argon gas flow rate is 3〇〇~5〇OSCCm 'The biasing of the substrate is -50~-15〇v, the temperature of the coating chamber is 100~150°C, and the coating time is 5~8min. The method for preparing a coated member according to claim 8, wherein the forming of the Ti〇2_ step is carried out by a slave: a secret method (four) shot method, using a metal titanium, f oxygen is a reaction gas, and an oxygen flow rate It is 2〇~4〇Sccm, argon gas is used as working gas, helium gas flow is 2〇〇~35〇sccm, and DC bias is applied to the substrate to be -50~-15〇v, ''the temperature of the surface is ~13 (TC, coating time is 2~3miri.. For the preparation method of the mineral film part mentioned in the scope of claim 8 of the patent application, wherein the shape is below the core of the core: using the magnetron residual method to make the zinc-resistance The mass percentage of copper in the steel-zinc alloy & is m~_, the working gas is argon gas, the flow rate of chlorine gas is 2〇~50sccm, and the coupling pulse bias is applied to the substrate to _18〇~ _35〇v, the pulse frequency is paid z 'pulse width is 20", the temperature of the film chamber is 7〇~130°C, and the coating time is 2~3min. The film recording device according to item 8 of the patent application scope The preparation method, wherein the number of times of alternately forming the Ti〇2 layer and the Cu-Zrr alloy layer is 5~2 times 099136033 Form No. A0101 No. 11 / Total 12 0992062998-0