CN115466946A - Metal base material antifouling water coating with micro-nano structure surface - Google Patents
Metal base material antifouling water coating with micro-nano structure surface Download PDFInfo
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- CN115466946A CN115466946A CN202211117904.3A CN202211117904A CN115466946A CN 115466946 A CN115466946 A CN 115466946A CN 202211117904 A CN202211117904 A CN 202211117904A CN 115466946 A CN115466946 A CN 115466946A
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- 239000011248 coating agent Substances 0.000 title claims abstract description 57
- 238000000576 coating method Methods 0.000 title claims abstract description 57
- 239000002086 nanomaterial Substances 0.000 title claims abstract description 56
- 239000002184 metal Substances 0.000 title claims abstract description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 239000000463 material Substances 0.000 title claims abstract description 27
- 230000003373 anti-fouling effect Effects 0.000 title claims abstract description 17
- 239000010410 layer Substances 0.000 claims abstract description 45
- 230000007704 transition Effects 0.000 claims abstract description 26
- 239000002344 surface layer Substances 0.000 claims abstract description 25
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 16
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 14
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 14
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 12
- 238000004140 cleaning Methods 0.000 claims description 15
- 239000000758 substrate Substances 0.000 claims description 14
- 238000001035 drying Methods 0.000 claims description 6
- NLSFWPFWEPGCJJ-UHFFFAOYSA-N 2-methylprop-2-enoyloxysilicon Chemical compound CC(=C)C(=O)O[Si] NLSFWPFWEPGCJJ-UHFFFAOYSA-N 0.000 claims description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 3
- 238000003486 chemical etching Methods 0.000 claims description 3
- 238000005530 etching Methods 0.000 claims description 3
- 238000010329 laser etching Methods 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- FZHAPNGMFPVSLP-UHFFFAOYSA-N silanamine Chemical compound [SiH3]N FZHAPNGMFPVSLP-UHFFFAOYSA-N 0.000 claims description 3
- UKRDPEFKFJNXQM-UHFFFAOYSA-N vinylsilane Chemical compound [SiH3]C=C UKRDPEFKFJNXQM-UHFFFAOYSA-N 0.000 claims description 3
- 238000007761 roller coating Methods 0.000 claims description 2
- 239000010865 sewage Substances 0.000 abstract description 18
- 239000002245 particle Substances 0.000 abstract description 16
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract description 15
- 239000011863 silicon-based powder Substances 0.000 abstract description 15
- 238000000227 grinding Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 8
- 230000014759 maintenance of location Effects 0.000 abstract description 2
- 239000007787 solid Substances 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 230000002209 hydrophobic effect Effects 0.000 description 5
- 235000013312 flour Nutrition 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 240000002853 Nelumbo nucifera Species 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 2
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- XJKVPKYVPCWHFO-UHFFFAOYSA-N silicon;hydrate Chemical compound O.[Si] XJKVPKYVPCWHFO-UHFFFAOYSA-N 0.000 description 1
- 230000003075 superhydrophobic effect Effects 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
Images
Classifications
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- 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
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B17/00—Methods preventing fouling
- B08B17/02—Preventing deposition of fouling or of dust
- B08B17/06—Preventing deposition of fouling or of dust by giving articles subject to fouling a special shape or arrangement
- B08B17/065—Preventing deposition of fouling or of dust by giving articles subject to fouling a special shape or arrangement the surface having a microscopic surface pattern to achieve the same effect as a lotus flower
-
- 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
- C09D127/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers
- C09D127/02—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D127/12—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C09D127/18—Homopolymers or copolymers of tetrafluoroethene
-
- 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
- C23C26/00—Coating not provided for in groups C23C2/00 - C23C24/00
-
- 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
- C23C2222/00—Aspects relating to chemical surface treatment of metallic material by reaction of the surface with a reactive medium
- C23C2222/20—Use of solutions containing silanes
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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)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a metal base material antifouling water coating with a micro-nano structure surface, which comprises a transition layer and a micro-nano structure surface layer, wherein the transition layer is attached to the surface of a metal base material, and the micro-nano structure surface layer is attached to the surface of the transition layer; the transition layer is made of a metal-philic silane coupling agent; the material of the micro-nano structure surface layer is polytetrafluoroethylene. The micron-sized strip-shaped structure is hollowed, the hollowed part is of a columnar structure, and the air retention capacity is improved by the hollowed part, so that the contact area between water and a solid part is reduced when the water drops on the surface of the micro-nano structure coating, and the water drops can flow away more easily. The gap of the micron-sized strip-shaped structure is 5 microns, the particle size of the silicon powder particles generated in the grinding process is about 1-10 microns, and when sewage with the silicon powder particles falls onto the coating, most of the particles are clamped in the gap of the strip-shaped structure and then are taken away by water drops, so that the coating is not polluted.
Description
Technical Field
The invention relates to the technical field of antifouling of metal base materials, in particular to a metal base material antifouling water coating with a micro-nano structure surface.
Background
The sewage on the inner wall of the grinding machine is accumulated for a long time to form dirt, the surface quality of a machined part can be influenced when the sewage falls onto the machined workpiece after falling off, and the maintenance cost of the machine tool is increased. The waterproof coating is widely applied in the fields of aerospace, building industry and the like, the hydrophobic principle of lotus effect is mainly utilized, air can be reserved between micro-nano structures, the contact area between water drops and the surface is reduced, the water drops cannot infiltrate the surface with low surface energy, and the self-cleaning function is realized. Therefore, the coating structure can be designed according to the component characteristics (silicon powder and water) of the grinded sewage to prevent the sewage from staying on the inner wall of the grinding chamber, and the purpose of self-cleaning the inner wall of the grinding chamber is achieved.
At present, two main ways are available for constructing a super-hydrophobic surface, one is to construct a hydrophobic coating with low surface energy on a rough surface with a surface micro-nano structure, and the other is to construct a micro-nano structure on a surface with low surface energy; the hydrophobic micro-nano structure commonly used in the second mode comprises the following three types: the structure shown in fig. 3 is a layer ridge structure, which is composed of a base layer with a micron scale at the bottom and triangular pointed projections with a nanometer scale on the base layer; the structure shown in fig. 4 is a square column structure, which is composed of a micro-scale base layer at the bottom and a nano-scale square column structure on the base layer; the structure shown in fig. 5 is a hemispherical structure, which is composed of a micro-scale base layer and a nano-scale hemispherical structure thereon; the three structures can achieve the purpose of dewatering, but the self-cleaning function of sewage, especially sewage mixed with silicon powder, is poor.
Disclosure of Invention
In order to solve the problems in the prior art, the invention aims to design the metal substrate antifouling water coating with the micro-nano structure surface, which can realize the self-cleaning function of the silicon powder mixed sewage.
In order to achieve the purpose, the technical scheme of the invention is as follows: the metal base material antifouling water coating with the micro-nano structure surface comprises a transition layer and a micro-nano structure surface layer, wherein the transition layer is attached to the surface of the metal base material, and the micro-nano structure surface layer is attached to the surface of the transition layer;
the transition layer is made of a metal-philic silane coupling agent;
the material of the micro-nano structure surface layer is polytetrafluoroethylene.
Further, the thickness of the transition layer is 10-100 μm; the thickness of the micro-nano structure surface layer is 30-100 mu m, and the contact angle of the micro-nano structure surface layer and water is 150 degrees.
Furthermore, the micro-nano structure of the micro-nano structure surface layer consists of a micron-scale strip structure with a hollow middle and a nano-scale layer ridge structure, and the layer ridge structure is positioned on the strip structure; the width of each strip-shaped structure is 5 micrometers, the height of each strip-shaped structure is 10 micrometers, the gap between the two strip-shaped structures is 5 micrometers, and the hollowed part in the middle of each strip-shaped structure is a cylindrical structure with the diameter of 10 micrometers; the layer ridge structure is a triangular strip-shaped structure with the width of 4nm and the height of 5nm, and the gap between the ridges is 5nm.
Further, the silane coupling agent includes a vinyl silane, an amino silane, or a methacryloxy silane.
Further, the preparation method of the metal substrate antifouling water coating with the micro-nano structure surface comprises the following steps:
A. wiping and cleaning the surface of the metal base material by absolute ethyl alcohol and then drying the metal base material;
B. preparing a silane coupling agent into a dilute solution with the mass concentration of 0.5-1%, coating a transition layer with the thickness of 10-100 mu m on the surface of the cleaned metal base material, and airing;
C. coating polytetrafluoroethylene on the surface of a silane coupling agent, airing to form a polytetrafluoroethylene coating, etching a micron-scale strip-shaped structure and a nanometer-scale ridge structure on the polytetrafluoroethylene coating by using a laser etching or chemical etching method to form a micro-nano structure surface layer, wherein the directions of the strip-shaped structure and the ridge structure are both vertical downward.
Further, the transition layer is formed by coating a silane coupling agent on the metal substrate in a brush coating or roller coating mode and then drying to form a film.
Compared with the existing coating structure, the coating structure has the following beneficial effects:
1. the micro-nano structure surface designed by the invention is based on the hydrophobic principle of lotus effect, the micro-nano structure is constructed on the low surface energy material polytetrafluoroethylene, and the hydrophobic effect is realized by utilizing the micron-scale strip structure and the nano-scale ridge structure on the micron-scale strip structure.
2. The micron-sized strip-shaped structure is hollowed, the hollowed part is of a columnar structure, and the air retention capacity is improved by the hollowed part, so that the contact area between water and a solid part is reduced when the water drops on the surface of the micro-nano structure coating, and the water drops can flow away more easily.
3. The gap of the micron-sized strip-shaped structure is 5 microns, the particle size of the silicon powder particles generated in the grinding process is about 1-10 microns, and when sewage with the silicon powder particles falls onto the coating, most of the particles are clamped in the gap of the strip-shaped structure and then are taken away by water drops, so that the coating is not polluted.
4. The direction of the micron-scale strip-shaped structure and the direction of the nanometer-scale layer ridge structure are both vertical downward, and when silicon powder particles fall into gaps of the strip-shaped structures, the silicon powder particles are more easily taken away by water drops under the action of gravity, so that the self-cleaning function of the coating is realized.
Drawings
FIG. 1 is a schematic view of the structure of the coating of the present invention.
FIG. 2 is a schematic diagram of a structure of a micro-nano structure surface layer.
Fig. 3 is a micro-nano structure schematic diagram of a layer ridge structure.
Fig. 4 is a schematic diagram of a micro-nano structure of a square column structure.
Fig. 5 is a schematic diagram of a micro-nano structure of a hemispherical structure.
Fig. 6 is a schematic diagram of a process of implementing the self-cleaning function according to the present invention.
Fig. 7 is a schematic diagram of the process of implementing the self-cleaning function according to the present invention.
Fig. 8 is a third schematic diagram of the process of implementing the self-cleaning function according to the present invention.
In the figure: 1. the structure comprises a metal base material, 2 a transition layer, 3 a micro-nano structure surface layer, 31 a micron-scale strip structure and 32 a nano-scale ridge structure.
Detailed Description
The invention is further described below with reference to the accompanying drawings. As shown in fig. 1-2, the metal base material antifouling water coating with the micro-nano structure surface comprises a transition layer 2 and a micro-nano structure surface layer 3, wherein the transition layer 2 is attached to the surface of the metal base material 1, and the micro-nano structure surface layer 3 is attached to the surface of the transition layer 2;
the transition layer 2 is made of a metal-philic silane coupling agent;
the material of the micro-nano structure surface layer 3 is polytetrafluoroethylene.
Further, the thickness of the transition layer 2 is 10-100 μm; the micro-nano structure surface layer 3 is 30-100 mu m thick and has a contact angle of 150 degrees with water.
Further, the micro-nano structure of the micro-nano structure surface layer 3 is composed of a micron-scale strip structure with a hollow middle and a nano-scale layer ridge structure 32, and the layer ridge structure is positioned on the strip structure; the width of each strip-shaped structure is 5 micrometers, the height of each strip-shaped structure is 10 micrometers, the gap between the two strip-shaped structures is 5 micrometers, and the hollowed part in the middle of each strip-shaped structure is a cylindrical structure with the diameter of 10 micrometers; the layer ridge structure is a triangular strip-shaped structure with the width of 4nm and the height of 5nm, and the gap between the ridges is 5nm.
Further, the silane coupling agent includes a vinyl silane, an aminosilane, or a methacryloxy silane.
Further, the preparation method of the metal substrate antifouling water coating with the micro-nano structure surface comprises the following steps:
A. wiping and cleaning the surface of the metal substrate 1 by absolute ethyl alcohol and then drying the metal substrate;
B. preparing a silane coupling agent into a dilute solution with the mass concentration of 0.5-1%, coating a transition layer 2 with the thickness of 10-100 mu m on the surface of a cleaned metal substrate 1, and airing;
C. coating polytetrafluoroethylene on the surface of a silane coupling agent, airing to form a polytetrafluoroethylene coating, etching a micron-scale strip-shaped structure 31 and a nanometer-scale ridge structure 32 on the polytetrafluoroethylene coating by using a laser etching or chemical etching method to form a micro-nano structure surface layer 3, wherein the directions of the strip-shaped structure and the layer ridge structure are both vertical and downward.
Further, the transition layer 2 is formed by coating a silane coupling agent on the metal substrate 1 by brushing or rolling and then drying to form a film.
Fig. 6-8 show the process of the present invention for realizing self-cleaning function, fig. 6 shows that part of the silicon powder particles stay in the gaps of the micron-sized strip-shaped structure after the sewage containing silicon powder flows across the clean coating surface, fig. 7 shows that when the subsequent sewage flows across the coating surface again, the water drops in the sewage carry away the silicon powder particles that previously stayed on the coating surface along the gaps of the strip-shaped structure due to the gravity, and fig. 8 shows that the coating surface returns to the clean state again after the water drops carry away the silicon powder particles on the coating surface, so as to realize the self-cleaning function of the coating surface.
In specific implementation, the placing direction of the metal base material 1 is the same as the direction of the micro-nano structure, and the metal base material 1 is placed along the vertical direction, and the invention mainly aims at the self-cleaning coating of the inner wall of the grinding chamber, the sewage generated in the grinding process is mainly deionized water sewage containing silicon powder particles, and the particle size of the silicon powder particles generated in the grinding process is between 1 and 10 micrometers. Therefore when the sewage that contains the silica flour granule sputters the coating surface, because bar structure both sides are hollowed out, increased the ability of reserving of air, reduced the area of contact of sewage and coating surface, some sewage directly flows away, still a few silica flour granules can stay in lamellar structure's clearance, because bar structure and layer ridge structure all are along vertical direction, and, it can be because the factor of self gravity is given the sewage of coming to take away to reduce these silica flour granules that stay in the clearance, thereby realize the self-cleaning function on coating surface.
While specific embodiments of the invention have been described, it will be understood by those skilled in the art that the specific embodiments described are illustrative only and are not limiting upon the scope of the invention, as equivalent modifications and variations as will be made by those skilled in the art in light of the spirit of the invention are intended to be included within the scope of the appended claims.
Claims (6)
1. A metal substrate antifouling water coating with a micro-nano structure surface is characterized in that: the metal base material comprises a transition layer (2) and a micro-nano structure surface layer (3), wherein the transition layer (2) is attached to the surface of a metal base material (1), and the micro-nano structure surface layer (3) is attached to the surface of the transition layer (2);
the transition layer (2) is made of a metal-philic silane coupling agent;
the micro-nano structure surface layer (3) is made of polytetrafluoroethylene.
2. The metal substrate antifouling water coating with the micro-nano structure surface as claimed in claim 1, wherein: the thickness of the transition layer (2) is 10-100 μm; the thickness of the micro-nano structure surface layer (3) is 30-100 mu m, and the contact angle of the micro-nano structure surface layer with water is 150 degrees.
3. The metal substrate antifouling water coating with the micro-nano structure surface as claimed in claim 1, wherein: the micro-nano structure of the micro-nano structure surface layer (3) consists of a micron-scale strip structure with a hollow middle and a nano-scale layer ridge structure (32), and the layer ridge structure is positioned on the strip structure; the width of each strip-shaped structure is 5 micrometers, the height of each strip-shaped structure is 10 micrometers, the gap between the two strip-shaped structures is 5 micrometers, and the hollowed part in the middle of each strip-shaped structure is a cylindrical structure with the diameter of 10 micrometers; the layer ridge structure is a triangular strip-shaped structure with the width of 4nm and the height of 5nm, and the gap between the ridges is 5nm.
4. The metal substrate antifouling water coating with the micro-nano structure surface as claimed in claim 1, wherein: the silane coupling agent includes a vinyl silane, an amino silane, or a methacryloxy silane.
5. The metal substrate antifouling water coating with the micro-nano structure surface as claimed in claim 1, wherein: the preparation method of the metal base material antifouling water coating with the micro-nano structure surface comprises the following steps:
A. wiping and cleaning the surface of the metal base material (1) by absolute ethyl alcohol and then drying the metal base material;
B. preparing a silane coupling agent into a dilute solution with the mass concentration of 0.5-1%, coating a transition layer (2) with the thickness of 10-100 mu m on the surface of a cleaned metal base material (1), and airing;
C. the method comprises the steps of coating polytetrafluoroethylene on the surface of a silane coupling agent, airing to form a polytetrafluoroethylene coating, etching a micron-scale strip structure (31) and a nanometer-scale ridge structure (32) on the polytetrafluoroethylene coating by using a laser etching or chemical etching method to form a micro-nano structure surface layer (3), wherein the directions of the strip structure and the ridge structure are vertical downwards.
6. The metal substrate antifouling water coating with the micro-nano structure surface as claimed in claim 5, wherein: the transition layer (2) is formed by coating a silane coupling agent on the metal base material (1) in a brush coating or roller coating mode and then drying the coating to form a film.
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| CN202211117904.3A CN115466946B (en) | 2022-09-14 | 2022-09-14 | Metal substrate anti-fouling water coating with micro-nano structure surface |
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| CN202211117904.3A CN115466946B (en) | 2022-09-14 | 2022-09-14 | Metal substrate anti-fouling water coating with micro-nano structure surface |
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2022
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