CN114054317A - Coating structure, preparation method thereof, material product comprising coating structure and electronic product - Google Patents
Coating structure, preparation method thereof, material product comprising coating structure and electronic product Download PDFInfo
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- CN114054317A CN114054317A CN202010751963.0A CN202010751963A CN114054317A CN 114054317 A CN114054317 A CN 114054317A CN 202010751963 A CN202010751963 A CN 202010751963A CN 114054317 A CN114054317 A CN 114054317A
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- layer
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- 239000011248 coating agent Substances 0.000 title claims abstract description 86
- 239000000463 material Substances 0.000 title claims abstract description 27
- 238000002360 preparation method Methods 0.000 title abstract description 6
- 239000010410 layer Substances 0.000 claims abstract description 212
- 239000011241 protective layer Substances 0.000 claims abstract description 52
- 230000003287 optical effect Effects 0.000 claims abstract description 44
- 239000011247 coating layer Substances 0.000 claims abstract description 30
- 238000005282 brightening Methods 0.000 claims abstract description 13
- 239000000758 substrate Substances 0.000 claims description 48
- 239000003973 paint Substances 0.000 claims description 47
- 229910044991 metal oxide Inorganic materials 0.000 claims description 19
- 150000004706 metal oxides Chemical class 0.000 claims description 19
- 238000005507 spraying Methods 0.000 claims description 13
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 10
- 229910052738 indium Inorganic materials 0.000 claims description 10
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical group [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 claims description 10
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 7
- 229910052681 coesite Inorganic materials 0.000 claims description 7
- 229910052906 cristobalite Inorganic materials 0.000 claims description 7
- 230000002708 enhancing effect Effects 0.000 claims description 7
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- 239000010703 silicon Substances 0.000 claims description 7
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- 229910052682 stishovite Inorganic materials 0.000 claims description 7
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- 238000004519 manufacturing process Methods 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 5
- 238000005498 polishing Methods 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 claims description 4
- 125000004469 siloxy group Chemical group [SiH3]O* 0.000 claims description 4
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- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
- B05D5/06—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain multicolour or other optical effects
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
- B05D5/06—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain multicolour or other optical effects
- B05D5/061—Special surface effect
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
- B05D5/08—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
- B05D5/08—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface
- B05D5/083—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface involving the use of fluoropolymers
-
- 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
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- 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
- C09D171/00—Coating compositions based on polyethers obtained by reactions forming an ether link in the main chain; Coating compositions based on derivatives of such polymers
-
- 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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
-
- 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
- C09D201/00—Coating compositions based on unspecified macromolecular compounds
-
- 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
- C09D5/002—Priming paints
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/02—Pretreatment of the material to be coated
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/02—Pretreatment of the material to be coated
- C23C14/024—Deposition of sublayers, e.g. to promote adhesion of the coating
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/08—Oxides
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/08—Oxides
- C23C14/083—Oxides of refractory metals or yttrium
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/10—Glass or silica
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/12—Organic material
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/14—Metallic material, boron or silicon
- C23C14/16—Metallic material, boron or silicon on metallic substrates or on substrates of boron or silicon
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/14—Metallic material, boron or silicon
- C23C14/20—Metallic material, boron or silicon on organic substrates
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Laminated Bodies (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The embodiment of the invention discloses a coating structure, a preparation method thereof, a material product comprising the coating structure and an electronic product. The coating structure comprises an NCVM primer layer, an NCVM coating layer, a first transparent protective layer, an optical brightening film layer and a second transparent protective layer which are sequentially stacked on the surface of a base material. Through the coating structure, the embodiment of the invention can present better ceramic texture and improve the durability and the wear resistance of the ceramic.
Description
Technical Field
The embodiment of the invention relates to the technical field of material processing, in particular to a coating structure and a preparation method thereof, and a material product and electronic equipment comprising the coating structure.
Background
With the continuous progress of the production process and the improvement of the personalized requirements of people on electronic products, besides the hardware specification of the electronic products, the appearance design of the electronic products is also one of the factors influencing the user experience. For example, users want the casing used in the mobile phone to have not only exquisite appearance, but also the advantages of wear resistance, drop resistance, corrosion resistance, and the like.
In the related art, in order to maintain the durability and wear resistance of the optical coating layer, a conventional brightening process is performed on the inner surface of the substrate, and the outer surface of the substrate is hardened or coated with an AF coating layer. Because the optical coating layer is positioned on the inner surface of the base material, the whole appearance expressive force of the base material is damaged to a certain extent, and the decoration requirement of a high-end mobile phone is difficult to meet.
Disclosure of Invention
The technical problem mainly solved by the embodiment of the invention is to provide a coating structure, a preparation method thereof, a material product and an electronic product applying the coating structure, which can present better ceramic texture and improve the durability and wear resistance of the coating structure.
In order to achieve the above object, one technical solution adopted by the embodiments of the present invention is: in a first aspect, a coating structure is provided, comprising an NCVM primer layer, an NCVM film coating layer, a first transparent protective layer, an optical brightness enhancement film layer, and a second transparent protective layer, which are sequentially stacked on a surface of a substrate.
Optionally, the NCVM film plating layer is an indium layer;
the optical brightness enhancement film layer comprises a metal oxide layer, wherein the metal oxide in the metal oxide layer is selected from Ti2O5,ZrO2,SiO2At least one of (1).
Optionally, the indium layer has a thickness of 3 to 20 nm;
the thickness of the metal oxide layer is 30-200 nm.
Optionally, the first transparent protective layer is a low-molecular-weight ultraviolet curing hardening coating;
the thickness of the first transparent protective layer is 15-25 μm.
Optionally, the second transparent protective layer is a modified silicone coating comprising a compound having a molecular formula represented by the following chemical structural formula:
wherein-SiOR represents a siloxy group;
the thickness of the modified organic silicon coating is 3-15 mu m.
In some embodiments, the coating structure further comprises a primer layer and a pigmented paint layer sequentially laminated on the substrate surface, the NCVM primer layer being laminated on top of the pigmented paint layer;
wherein a thickness of the primer layer is partially removed by grinding before the colored paint layer is laminated on the primer layer.
In some embodiments, the primer layer comprises a first primer layer, a second primer layer, and a third primer layer, the color paint layer being laminated over the third primer layer;
the thicknesses of the first primer layer, the second primer layer, the third primer layer and the color paint layer are all 8-15 mu m, and the polishing removal amount of the third primer layer is 5-15 mu m.
In a second aspect, there is provided a method of making a coating structure as described above, comprising:
spraying a coating on the surface of the base material, and curing to form the NCVM primer layer;
forming the NCVM coating layer on the NCVM primer layer by a discontinuous coating technology;
forming the first transparent protective layer on the NCVM coating layer;
forming the optical brightening film layer on the first transparent protective layer through an optical coating process;
forming the second transparent protective layer on the optical brightness enhancing film layer.
Optionally, the NCVM film plating layer is an indium layer;
the optical brightness enhancement film layer comprises a metal oxide layer, wherein the metal oxide in the metal oxide layer is selected from Ti2O5,ZrO2,SiO2At least one of (1).
Optionally, the indium layer has a thickness of 3 to 20 nm;
the thickness of the metal oxide layer is 30-200 nm.
Optionally, the first transparent protective layer is a low-molecular-weight ultraviolet curing hardening coating;
the thickness of the first transparent protective layer is 15-25 μm.
Optionally, the second transparent protective layer is a modified silicone coating comprising a compound having a molecular formula represented by the following chemical structural formula:
wherein-SiOR represents a siloxy group;
the thickness of the modified organic silicon coating is 3-15 mu m.
In some embodiments, prior to spraying the coating on the substrate surface to form the NCVM primer layer after curing, the method of making further comprises:
spraying paint on the surface of the substrate to form a primer layer;
polishing the primer layer;
and spraying color paint on the primer layer to form a color paint layer.
In some embodiments, said spraying a paint on the surface of said substrate, forming a primer layer specifically comprises:
spraying paint three times on the surface of the substrate to form a first primer layer, a second primer layer and a third primer layer, wherein the thicknesses of the first primer layer, the second primer layer, the third primer layer and the colored paint layer are 8-15 μm;
the polishing primer layer specifically comprises:
and sanding the third primer layer, wherein the sanding removal amount of the third primer layer is 5-15 mu m.
In a third aspect, there is provided an article of material comprising a substrate, and a coating architecture as described above laminated to a surface of the substrate.
In a fourth aspect, an electronic product is provided, which includes a housing made of the material product as described above.
The embodiment of the invention has the beneficial effects that: different from the situation of the prior art, the coating structure provided by the embodiment of the invention comprises an NCVM primer layer, an NCVM coating layer, a first transparent protective layer, an optical brightening film layer and a second transparent protective layer which are sequentially laminated on the surface of a base material, wherein the transmission and reflection of light rays can be comprehensively improved by arranging the first transparent protective layer on the NCVM coating layer and arranging the optical brightening film layer on the first transparent protective layer, so that the coating structure presents a high-brightness ceramic texture; meanwhile, after part of the optical brightening film layer is abraded, the difference between an abraded area and an unworn area in vision is weakened and is not obvious due to the reflection luster of the NCVM coating layer, so that the durability and the wear resistance of the coating structure are improved.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.
FIG. 1 is a schematic view of a coating architecture of an embodiment of the present invention;
FIG. 2 is a schematic view of a coating architecture according to another embodiment of the present invention;
FIG. 3 is a schematic flow chart of a method of making a coating architecture according to an embodiment of the present invention.
Detailed Description
In order to facilitate an understanding of the invention, the invention is described in more detail below with reference to the accompanying drawings and specific examples. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for descriptive purposes only.
Example 1
Referring to fig. 1, the coating structure includes an NCVM primer layer 10, an NCVM film coating layer 30, a first transparent protective layer 50, an optical brightness enhancement film layer 70, and a second transparent protective layer 90, which are sequentially stacked on a surface of a substrate 200.
NCVM is an abbreviation of Non-conductive vacuum plating in english, and NCVM, namely, a discontinuous plating technique or a Non-conductive plating technique, is a high and new technique starting from ordinary vacuum plating, and means that a metal material is subjected to organic conversion by using specific means such as chemistry, physics and the like under a vacuum condition, so that the metal is converted into particles, deposited or adsorbed on the surface of a plastic material, and finally a plated film with a metal texture and without affecting a wireless communication transmission effect is formed.
The NCVM primer layer 10, which is a coating layer formed on the surface of the substrate 200 by spraying before the NCVM coating layer 30 is formed by a discontinuous coating technique or a non-conductive plating technique, is used to protect the surface of the substrate 200 and to enhance the adhesion of the NCVM coating layer 30 on the surface of the substrate 200, and has a thickness of 10-15 μm, so as to ensure that the NCVM coating layer 30 can be stably adhered to the surface of the substrate 200. Specifically, the NCVM primer layer 10 may be an Ultraviolet light Curing (UV) paint or a Polyurethane (PU) paint.
The NCVM coating 30 may be an indium, tin, or aluminum layer to reflect some of the light to improve the pattern, texture, and/or color on the substrate 200. In one embodiment, the NCVM coating 30 is an indium layer, so that the substrate 200 can be applied to electronic products with high requirements for wireless information transmission, for example, a mobile phone middle frame; the thickness of the indium layer is preferably 3 to 20nm, and if the thickness is too large, the light transmittance is low, adversely affecting the appearance expression of the substrate 200.
The first transparent protective layer 50 covers the NCVM coating layer 30, protects the NCVM coating layer 30, and may be closely combined with the NCVM primer layer 10. In some embodiments, the first transparent protective layer 50 is a low molecular weight uv curable hardened coating, which is made of raw materials mainly composed of a low molecular weight photosensitive resin with unsaturated bonds, a photoinitiator, a photo-curing agent, and a diluent.
Further, the first transparent protection layer 50 also has high hardness and high transparency, for example, the surface hardness is greater than or equal to 4H, and the transparency is greater than or equal to 85%, and the existing low molecular weight UV coating satisfying the hardness and transparency can be used for preparing the first transparent protection layer 50 (for example, the acrylic UV coating generated by shenzhenjirelta technology can be used).
The NCVM coating 30 has a loss of reflective gloss due to the covering of the first transparent protective layer 50, and thus in this embodiment, an optical brightness enhancement film layer 70 is further laminated on the first transparent protective layer 50.
The optical coating refers to a process of coating one (or more) layers of metal (or medium) films on the surface of an optical part, and the purpose of coating the film on the surface of the optical part is to meet the requirements of reducing or increasing light reflection, beam splitting, color separation, light filtering, polarization and the like. The commonly used coating methods include vacuum coating (one type of physical coating) and chemical coating, wherein the vacuum coating is to gasify a coating material through a specific heating source in a high vacuum environment, and then deposit the coating material on the surface of a base material to form a layer of transparent dielectric film, so as to increase the transmittance and brightness and improve the visual quality.
The optical brightness enhancement film layer 70 is a transparent dielectric film formed by an optical coating process, and the optical brightness enhancement film layer 70 has a brightness enhancement effect and can compensate for the loss of gloss caused by the coverage of the first transparent protective layer 50; the optical brightness enhancement film layer 70 and the first transparent protective layer 50 have better compatibility, and the NCVM coating layer 30, the first transparent protective layer 50 and the optical brightness enhancement film layer 70 can be superposed to further present a high-brightness ceramic texture.
The thickness of the optical brightness enhancement film layer 70 is 30-200 nm. In some embodiments, the optical brightness enhancing film layer 70 includes a metal oxide layer, the metal oxide in the metal oxide layer being selected from Ti2O5,ZrO2,SiO2At least one of (1), e.g. the metal oxide layer is Ti2O5Layer of either SiO2A layer of or including Ti2O5Layer and SiO2And (4) laminating the layers.
A second transparent protective layer 90 overlies the optical brightness enhancing film layer 70 and serves to protect the optical brightness enhancing film layer 70 and maximize the ceramic-like effect of the coating structure. In practice, even if a portion of the second transparent protective layer 90 at the outermost surface is abraded, resulting in abrasion of the optical brightness enhancement film layer 70, the visual difference between the abraded area and the unworn area is not significant due to the addition of the NCVM coating layer 30 below the first transparent protective layer 50, thereby improving the durability and abrasion resistance of the coating structure.
In some embodiments, the second transparent protective layer 90 may employ an AF coating.
In some embodiments, the second transparent protective layer 90 is a modified silicone coating that has a dual role of penetration and coverage. The modified organosiliconThe coating is prepared by taking perfluoropolyether and a silane coupling agent as main raw materials, and the dosage ratio of the perfluoropolyether to the silane coupling agent is about 1: 2. Wherein, the main chain of the perfluoropolyether is composed of an ether chain of-CF 2-O-CF 2-, and a silane coupling agent (the molecular general formula is R)3-Si-Y, R representing a hydrolysable group), by reaction to add two C-Si bonds to its main chain, a compound of formula:
by the modification, the adhesion of the modified silicone coating on the optical brightness enhancement film layer 70 is significantly improved, for example, 2 times higher than the adhesion of the AF coating.
The thickness of the modified organic silicon coating is 3-15 μm, the optical brightening film layer 70 can be well protected under the condition that the original gloss of the optical brightening film layer 70 is not affected, and the thickness of the existing commonly used AF coating or PU/UV coating is mostly less than 3 μm, so that the modified organic silicon coating in the embodiment has more excellent wear resistance compared with the existing protective coating.
In summary, the coating structure of the present embodiment includes the NCVM primer layer 10, the NCVM film coating layer 30, the first transparent protective layer 50, the optical brightening film layer 70 and the second transparent protective layer 90 sequentially stacked on the substrate surface, and by disposing the first transparent protective layer 50 on the NCVM film coating layer 30 and the optical brightening film layer 70 on the first transparent protective layer 50, the transmission and reflection of light can be comprehensively improved, and a high-brightness ceramic texture is presented; meanwhile, after part of the optical brightness enhancement film layer 70 is abraded, the visual difference between the abraded area and the unworn area can be weakened and is not obvious due to the reflection luster of the NCVM coating layer 30, so that the durability and the wear resistance of the coating structure are improved.
Example 2
Referring to fig. 2, the embodiment of the present invention further provides a coating structure, which is different from the above embodiment in that the coating structure further includes a primer layer 100 and a color paint layer 110 sequentially stacked on the surface of the substrate 200, the NCVM primer layer 10 is stacked on the color paint layer 110, and the NCVM primer layer 10 is mainly used for enhancing the adhesion of the NCVM coating layer 30 on the surface of the substrate 200.
The primer layer 100 is directly formed on the surface of the substrate 200, and serves to protect the surface of the substrate 200 and to enhance the adhesion of the color paint layer 30 on the surface of the substrate 200. In an embodiment, the primer layer 100 includes a first primer layer 101, a second primer layer 102 and a third primer layer 103, and the paint used for all of the first primer layer 101, the second primer layer 102 and the third primer layer 103 may be partially or completely the same or may be partially or completely different.
Optionally, the adhesion of the paint used for the first primer layer 101 on the surface of the substrate 200 is greater than the adhesion of the paint used for the second primer layer 102 on the surface of the substrate 200, and the paint used for the second primer layer 102 and the third primer layer 103 are the same, i.e., the primer layer 100 can be regarded as including only the first and second two primer layers, so that the first primer layer 101 serves as a connecting primer, which can improve the adhesion of the whole primer layer 100 on the surface of the substrate 200; on the other hand, by providing the first, second, and third primer layers 101, 102, and 103, the hardness of the entire primer layer 100 is also increased.
Optionally, the thickness of each of the first, second, and third primer layers 101, 102, and 103 is 8 to 15 μm to ensure that the primer layer 100 can achieve a certain hardness. The thicknesses of the first primer layer 101, the second primer layer 102 and the third primer layer 103 may be partially or completely the same, or may be partially or completely different, which is not limited in the embodiment of the present invention.
To improve orange peel and flatness of primer layer 100, the side of primer layer 100 remote from the surface of substrate 200 may be buffed, for example, in the above embodiment, the surface of third primer layer 103 may be buffed to a removal amount of 5 to 15 μm.
The color paint layer 110 is used to make the whole coating structure present a certain color, such as bluish purple, champagne, orange red, etc., and the color paint layer 110 is selected from the paint with the same type or similar paint performance as the paint of the second primer layer 102 or the third primer layer 103, so as to be better attached to the third primer layer 103.
Optionally, the thickness of the pigmented paint layer 110 is 8-15 μm. It is understood that in some embodiments, the coating structure may not include the color paint layer 110, and the primer layer 100 may be colored by itself or the color to be presented is the natural color of the substrate 200.
The NCVM primer layer 10 functions to connect the color paint layer 110 (or primer layer 100) and the NCVM plating layer 30, increasing the bonding force between the color paint layer 110 and the NCVM plating layer 30. The configuration of the NCVM primer layer 10, the NCVM coating layer 30, the first transparent protective layer 50, the optical brightness enhancement film layer 70 and the second transparent protective layer 90 is the same as the above embodiments, and the detailed description thereof is omitted.
In the present embodiment, the primer layer 100 and the color paint layer 110 on the surface of the substrate 200 can make the appearance of the substrate 200 to be diversified; the primer layer 100 comprises a first primer layer 101, a second primer layer 102 and a third primer layer 103, so that the surface of the substrate 200 can be better protected, and the adhesion of the whole primer layer 100 on the surface of the substrate 200 can be improved.
Example 3
The embodiment of the invention also provides a preparation method of the coating structure, which comprises the following steps:
(1) providing and treating a surface of a substrate;
(2) spraying paint three times on the surface of the substrate to respectively form a first primer layer, a second primer layer and a third primer layer;
(3) polishing the third primer layer;
(4) spraying a colored paint on the third primer layer to form a colored paint layer;
(5) spraying the coating on the colored paint layer, and curing to form an NCVM primer layer;
(6) forming an NCVM coating layer on the NCVM primer layer by a discontinuous coating technology;
(7) forming a first transparent protective layer on the NCVM coating layer;
(8) forming an optical brightening film layer on the first transparent protective layer through an optical coating process;
(9) a second transparent protective layer is formed over the optical brightness enhancing film layer.
In the step (1), different treatment methods are required for different base materials, optionally, a metal base material or a plastic base material is adopted in the embodiment, and for the metal base material (such as an aluminum alloy), the aluminum-plastic combined antenna seam can be polished by sand paper and subjected to E treatment; for plastic substrates, the injection mold parting line can be sanded with sandpaper.
In the step (2), the adhesion force of the paint used for the first primer layer on the surface of the substrate is greater than the adhesion force of the paint used for the second primer layer on the surface of the substrate, the paints used for the second primer layer and the third primer layer are the same, and the thicknesses of the three primer layers can be the same or different. The three primer layers are all cured by heating, and the baking conditions are all 110-130 ℃ and 15-30 min.
In step (3) above, the third primer layer may be similarly sanded, for example, by 800# sponge sandpaper +1500# sandpaper, and the thickness of the third primer layer is partially or completely removed after sanding.
In the step (4), the paint with the same type or similar paint performance as the paint used for the second primer layer or the third primer layer is selected as the colored paint.
In the step (5), the NCVM primer layer is a coating layer that is sprayed on the surface of the substrate 200 before the NCVM coating layer is formed by the discontinuous coating technique or the non-conductive plating technique, and is used to enhance the adhesion of the NCVM coating layer on the surface of the substrate. The NCVM primer layer may be an Ultraviolet light Curing (UV) paint or a Polyurethane (PU) paint, and has a thickness of 10-15 μm.
In the step (6), the NCVM coating layer formed by the discontinuous coating technique may reflect a part of light, thereby improving the pattern, texture and/or color on the substrate. Optionally, the NCVM plating layer is an indium layer, preferably 3-20nm thick.
In the step (7), the first transparent protective layer may be formed by spraying, evaporation, or coating. Optionally, the first transparent protective layer is a low-molecular-weight ultraviolet curing hardening coating, and has high hardness and high transparency, wherein the surface hardness is more than or equal to 4H, and the transparency is more than or equal to 85%.
In the above step(8) Wherein the optical brightness enhancement film layer comprises a metal oxide layer, wherein the metal oxide in the metal oxide layer is selected from Ti2O5,ZrO2,SiO2At least one of (1).
In the step (9) above, the second transparent protective layer may be formed on the optical brightness enhancement film layer by spraying, evaporation, coating, or the like.
In some embodiments, the second transparent protective layer is a modified silicone coating comprising a compound having the formula:
wherein-SiOR represents a siloxy group;
the thickness is 3-15 μm.
Those skilled in the art can understand that the embodiment of the coating structure (i.e., the product embodiment) in the embodiment of the present invention and the embodiment of the method for manufacturing the coating structure (i.e., the method embodiment) are based on the same inventive concept, and the technical content in the product embodiment is also applicable to the method embodiment, and therefore, the technical content in the product embodiment that is the same as the method embodiment is not described herein again.
The embodiment of the invention also provides a material product, which comprises a substrate and the coating structure laminated on the surface of the substrate, wherein the substrate comprises a metal substrate or a plastic substrate.
The invention also provides an electronic product which comprises a shell, wherein the shell is made of the material product. In practical application, the electronic product can be a mobile phone, a tablet personal computer, an intelligent watch and the like.
It should be understood, however, that the description herein of preferred embodiments of the present invention is not intended to limit the invention to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims. Moreover, the above technical features are combined with each other to form various embodiments which are not listed above, and all the embodiments are regarded as the scope of the present invention described in the specification; further, modifications and variations will occur to those skilled in the art in light of the foregoing description, and it is intended to cover all such modifications and variations as fall within the true spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A coating structure is characterized by comprising an NCVM primer layer, an NCVM coating layer, a first transparent protective layer, an optical brightening film layer and a second transparent protective layer which are sequentially stacked on the surface of a base material.
2. The coating architecture according to claim 1,
the NCVM coating layer is an indium layer;
the optical brightness enhancement film layer comprises a metal oxide layer, wherein the metal oxide in the metal oxide layer is selected from Ti2O5,ZrO2,SiO2At least one of (1).
3. The coating architecture according to claim 2,
the thickness of the indium layer is 3-20 nm;
the thickness of the metal oxide layer is 30-200 nm.
4. The coating architecture according to claim 1,
the first transparent protective layer is an ultraviolet curing hardening coating with low molecular weight;
the thickness of the first transparent protective layer is 15-25 μm.
5. The coating architecture according to claim 4,
the second transparent protective layer is a modified organic silicon coating, and the modified organic silicon coating comprises a compound with a molecular formula shown as the following chemical structural formula:
wherein-SiOR represents a siloxy group;
the thickness of the modified organic silicon coating is 3-15 mu m.
6. The coating architecture according to any one of claims 1-5,
the NCVM primer layer is laminated on the colored paint layer;
wherein a thickness of the primer layer is partially removed by grinding before the colored paint layer is laminated on the primer layer.
7. The coating architecture according to claim 6,
the primer layer comprises a first primer layer, a second primer layer and a third primer layer, and the colored paint layer is laminated on the third primer layer;
the thicknesses of the first primer layer, the second primer layer, the third primer layer and the color paint layer are all 8-15 mu m, and the polishing removal amount of the third primer layer is 5-15 mu m.
8. A method of making a coating architecture according to any one of claims 1 to 7, comprising:
spraying a coating on the surface of the base material, and curing to form the NCVM primer layer;
forming the NCVM coating layer on the NCVM primer layer by a discontinuous coating technology;
forming the first transparent protective layer on the NCVM coating layer;
forming the optical brightening film layer on the first transparent protective layer through an optical coating process;
forming the second transparent protective layer on the optical brightness enhancing film layer.
9. An article of material comprising a substrate and a coating architecture according to any one of claims 1 to 7 laminated to a surface of the substrate.
10. An electronic product comprising a housing, wherein the housing is made from the article of material of claim 9.
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