CN114806397A - Green self-repairing type super-smooth surface marine antifouling coating and preparation method thereof - Google Patents
Green self-repairing type super-smooth surface marine antifouling coating and preparation method thereof Download PDFInfo
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- CN114806397A CN114806397A CN202210280991.8A CN202210280991A CN114806397A CN 114806397 A CN114806397 A CN 114806397A CN 202210280991 A CN202210280991 A CN 202210280991A CN 114806397 A CN114806397 A CN 114806397A
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- 238000000576 coating method Methods 0.000 title claims abstract description 61
- 239000011248 coating agent Substances 0.000 title claims abstract description 58
- 230000003373 anti-fouling effect Effects 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 239000004205 dimethyl polysiloxane Substances 0.000 claims abstract description 48
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims abstract description 48
- 239000000314 lubricant Substances 0.000 claims abstract description 13
- 239000004005 microsphere Substances 0.000 claims abstract description 12
- -1 polydimethylsiloxane Polymers 0.000 claims abstract description 10
- 239000002002 slurry Substances 0.000 claims description 14
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 10
- 239000012790 adhesive layer Substances 0.000 claims description 10
- 238000005187 foaming Methods 0.000 claims description 10
- 238000004987 plasma desorption mass spectroscopy Methods 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 7
- 238000004528 spin coating Methods 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 5
- 229920002545 silicone oil Polymers 0.000 claims description 5
- 238000002791 soaking Methods 0.000 claims description 5
- 238000009210 therapy by ultrasound Methods 0.000 claims description 5
- 239000005662 Paraffin oil Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 239000004088 foaming agent Substances 0.000 claims description 2
- 239000002608 ionic liquid Substances 0.000 claims description 2
- 239000011159 matrix material Substances 0.000 claims description 2
- 239000010702 perfluoropolyether Substances 0.000 claims description 2
- 235000013870 dimethyl polysiloxane Nutrition 0.000 claims 4
- CXQXSVUQTKDNFP-UHFFFAOYSA-N octamethyltrisiloxane Chemical compound C[Si](C)(C)O[Si](C)(C)O[Si](C)(C)C CXQXSVUQTKDNFP-UHFFFAOYSA-N 0.000 claims 1
- 238000012360 testing method Methods 0.000 abstract description 14
- 241000195493 Cryptophyta Species 0.000 abstract description 10
- 230000000844 anti-bacterial effect Effects 0.000 abstract description 10
- 241000894006 Bacteria Species 0.000 abstract description 8
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- 239000000463 material Substances 0.000 abstract description 5
- 239000013535 sea water Substances 0.000 abstract description 4
- 230000035699 permeability Effects 0.000 abstract description 3
- 230000003746 surface roughness Effects 0.000 abstract description 3
- 230000014759 maintenance of location Effects 0.000 abstract description 2
- 230000001133 acceleration Effects 0.000 abstract 1
- 238000009991 scouring Methods 0.000 abstract 1
- 239000000758 substrate Substances 0.000 abstract 1
- 239000011521 glass Substances 0.000 description 16
- 230000000052 comparative effect Effects 0.000 description 7
- 238000001035 drying Methods 0.000 description 7
- 238000005485 electric heating Methods 0.000 description 6
- 239000006185 dispersion Substances 0.000 description 5
- 241000195649 Chlorella <Chlorellales> Species 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000011056 performance test Methods 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 2
- LOKCTEFSRHRXRJ-UHFFFAOYSA-I dipotassium trisodium dihydrogen phosphate hydrogen phosphate dichloride Chemical compound P(=O)(O)(O)[O-].[K+].P(=O)(O)([O-])[O-].[Na+].[Na+].[Cl-].[K+].[Cl-].[Na+] LOKCTEFSRHRXRJ-UHFFFAOYSA-I 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002953 phosphate buffered saline Substances 0.000 description 2
- 239000006137 Luria-Bertani broth Substances 0.000 description 1
- 206010048038 Wound infection Diseases 0.000 description 1
- 230000010065 bacterial adhesion Effects 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
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- AMTWCFIAVKBGOD-UHFFFAOYSA-N dioxosilane;methoxy-dimethyl-trimethylsilyloxysilane Chemical compound O=[Si]=O.CO[Si](C)(C)O[Si](C)(C)C AMTWCFIAVKBGOD-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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- 244000005700 microbiome Species 0.000 description 1
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- 239000002994 raw material Substances 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 229940083037 simethicone Drugs 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000013112 stability test Methods 0.000 description 1
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Classifications
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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
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
-
- 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
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1656—Antifouling paints; Underwater paints characterised by the film-forming substance
- C09D5/1662—Synthetic film-forming substance
- C09D5/1675—Polyorganosiloxane-containing compositions
-
- 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
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1687—Use of special additives
Abstract
The invention discloses a green self-repairing type super-smooth surface marine antifouling coating and a preparation method thereof, wherein polydimethylsiloxane is used as a substrate material of the coating, and non-crosslinked thermal expansion microspheres are doped into the polydimethylsiloxane for curing and forming, a specially designed microporous structure is established on the surface of the coating, the surface roughness of the coating is improved, the stability of a surface lubricating layer is favorably kept, the lubricant has good permeability in the polydimethylsiloxane, the lubricant on the green self-repairing surface can be migrated from the interior of the polydimethylsiloxane, so that the locally lost surface lubricating layer can be rapidly repaired in a short time, the retention rate of the lubricant is still more than 80 percent under a seawater repeated scouring acceleration test, the coating has good stability, and only a small amount of bacteria and algae are adhered to the surface after the characteristics of an antibacterial test and an algae adhesion test, the antifouling rate and the antibacterial rate are both more than 99 percent.
Description
Technical Field
The invention belongs to the technical field of polymer coating materials, and relates to a green self-repairing type super-smooth surface marine antifouling coating and a preparation method thereof.
Background
The adhesion, growth and reproduction of microorganisms at material interfaces are ubiquitous natural phenomena. From a technical, health or economic point of view, the attachment and growth of organisms on the surface of materials is called biofouling, which is ubiquitous and difficult to prevent, and which brings many troubles to our lives, hinders industrial activities and even poses dangers, especially in the medical and marine industries. For example, microbes contaminate medical equipment and medical devices, and the initial stage of infection of the devices is reversible adhesion of bacteria on the surface of the material; biomedical implants, once adhered by mold, are prone to wound infection or medical accidents.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a green self-repairing type super-smooth surface marine antifouling coating and a preparation method thereof, wherein Polydimethylsiloxane (PDMS) is used as a matrix, non-crosslinked thermal Expansion Microspheres (EM) with the particle size of about 5-10 mu m are selected as a raw material (foaming agent) for preparing porous PDMS, and a lubricant is added to prepare the coating, and the preparation method comprises the following specific steps:
(1) preparation of EM/PDMS slurry:
adding EM into PDMS, and stirring for 60-80 minutes to uniformly disperse EM in PDMS to obtain dispersed slurry;
(2) preparing an adhesive layer:
leveling the dispersion slurry obtained in the step (1) by using a coating machine, pre-curing for more than 16 hours at room temperature, and then placing the mixture in an electric heating constant-temperature drying oven to enable EM to foam at constant temperature to form an adhesive layer;
(3) preparing a porous material:
immersing the sample in the step (2) in DMF, performing ultrasonic treatment for 3-4 hours to dissolve EM, and then cleaning DMF by using ethanol to obtain a porous PDMS coating;
(4) preparing an antifouling coating:
and (3) completely soaking the sample in the step (3) in a lubricant for 48-60h, then placing in a vacuum environment for 3-4 h, sucking the residual air of the sample, and rotating at 400-600rpm for 8-12 s by using a spin coating spin coater to remove the redundant silicon oil on the surface of the sample, thereby obtaining the environment-friendly green self-repairing type super-smooth surface marine antifouling coating.
The non-crosslinked thermal Expansion Microspheres (EM) in the step (1) are Ackso low-temperature foaming microspheres 031DU40 with the particle size of about 5-10 μm.
The mass ratio of EM to PDMS in the step (1) is 1: 4-10.
The temperature of constant-temperature foaming in the electric heating constant-temperature drying box in the step (2) is 90-110 ℃, and the time is 1.5-2.5 hours.
The ultrasonic power in the step (3) is 400-600W.
The lubricant in the step (4) comprises silicone oil, perfluoropolyether, paraffin oil or ionic liquid and the like.
The invention has the beneficial effects that:
according to the invention, a specially designed microporous structure is established on the surface of the coating, so that the surface roughness of the coating is improved, and the stability of a surface lubricating layer is favorably maintained; the lubricant has good permeability in PDMS, so that the locally damaged surface lubricating layer can be automatically repaired within a certain time.
Drawings
FIG. 1 is a primary structural view of a coating;
FIG. 2 is a graph showing the results of a Chlorella adhesion test;
FIG. 3 is a graph showing the results of the antibacterial test.
Detailed Description
The technical solution of the invention is further explained and illustrated in the form of specific embodiments.
Example 1
A preparation method of a green self-repairing type super-smooth surface marine antifouling coating comprises the following specific steps:
(1) preparation of EM/PDMS slurry:
adding 0.6g of EM into 2.4g of PDMS according to the mass ratio of the EM (Ackso low-temperature foaming microspheres 031DU40 with the particle size of about 5-10 mu m) to the PDMS being 1:4, and stirring for 60 minutes to uniformly disperse the EM in the PDMS to obtain dispersion slurry;
(2) preparing an adhesive layer:
coating the dispersed slurry obtained in the step (1) on a wire bar coater with an area of 2cm 2 After the dispersion is pre-cured for 16 hours at room temperature, the glass sheet is placed in an electric heating constant-temperature drying oven to be dried for 2 hours at 100 ℃ so that EM is foamed to form an adhesive layer;
(3) preparing a porous material:
immersing the sample in the step (2) into DMF to dissolve EM, performing ultrasonic treatment at 500W for 3.5 hours, and then cleaning the DMF by using ethanol to obtain a porous PDMS coating;
(4) preparing an antifouling coating:
and (3) completely soaking the sample in the step (3) in dimethyl silicone oil for 48h, then placing in a vacuum environment for 3 h, sucking the residual air in the sample until no bubbles emerge, and finally, rotating at 500rpm for 10 s by using a spin-coating glue-homogenizing instrument to remove the redundant silicon oil on the surface of the sample to obtain the environment-friendly green self-repairing type super-smooth surface marine antifouling coating which is named as P-PDMS/OG 25% and has the thickness of 400.21 microns.
Example 2
A preparation method of a green self-repairing type super-smooth surface marine antifouling coating comprises the following specific steps:
(1) preparation of EM/PDMS slurry:
adding 0.6g of EM into 3g of PDMS according to the mass ratio of the EM (Ackso low-temperature foaming microspheres 031DU40 with the particle size of about 5-10 mu m) to the PDMS being 1:5, and stirring for 70 minutes to uniformly disperse the EM in the PDMS to obtain dispersed slurry;
(2) preparing an adhesive layer:
coating the dispersed slurry obtained in the step (1) on a wire bar coater with an area of 2cm 2 After the dispersion is pre-cured for 20 hours at room temperature, the glass sheet is placed in an electric heating constant-temperature drying oven to be dried for 2.5 hours at 90 ℃ so that EM is foamed to form an adhesive layer;
(3) preparing a porous material:
immersing the sample in the step (2) into DMF to dissolve EM, carrying out 400W ultrasonic treatment for 4 hours, and then cleaning DMF by using ethanol to obtain a porous PDMS coating;
(4) preparing an antifouling coating:
and (3) completely soaking the sample in the step (3) in the dimethyl silicone oil for 60 hours, then placing the sample in a vacuum environment for 4 hours, sucking the residual air of the sample until no bubbles emerge, and finally, rotating the sample at 400rpm for 12 seconds by using a spin-coating glue-homogenizing instrument to remove the redundant silicone oil on the surface of the sample to obtain the environment-friendly green self-repairing type super-smooth surface marine antifouling coating which is named as P-PDMS/OG 20% and has the thickness of 403.35 microns.
Example 3
A preparation method of a green self-repairing type super-smooth surface marine antifouling coating comprises the following specific steps:
(1) preparation of EM/PDMS slurry:
adding 0.6g of EM into 6g of PDMS according to the mass ratio of the EM (Ackso low-temperature foaming microspheres 031DU40 with the particle size of about 5-10 mu m) to the PDMS being 1:10, and stirring for 80 minutes to uniformly disperse the EM in the PDMS to obtain dispersed slurry;
(2) preparing an adhesive layer:
coating the dispersed slurry in the step (1) on a plane with an area of 2cm by a wire bar coater 2 After the dispersion is pre-cured for 18 hours at room temperature, the glass sheet is placed in an electric heating constant-temperature drying oven to be dried for 1.5 hours at 110 ℃ so as to enable EM to foam and form an adhesive layer;
(3) preparing a porous material:
immersing the sample in the step (2) into DMF to dissolve EM, performing ultrasonic treatment at 600W for 3 hours, and then cleaning DMF by using ethanol to obtain a porous PDMS coating;
(4) preparing an antifouling coating:
and (3) completely soaking the sample in the step (3) in paraffin oil for 50h, then placing the sample in a vacuum environment for 3.5 h, sucking the residual air of the sample until no bubbles emerge, and finally, rotating the sample at 600rpm for 8 s by using a spin-coating glue-homogenizing instrument to remove the redundant paraffin oil on the surface of the sample to obtain an environment-friendly green self-repairing type super-smooth surface marine antifouling coating which is named as P-PDMS/OG 10% and has the thickness of 409.58 microns.
FIG. 1 is a basic structure diagram of a coating, wherein EM is added into PDMS, and a porous structure coating is obtained after DMF treatment.
Comparative example 1
The preparation method of the PDMS/OG coating comprises the following specific steps:
(1) preparing an adhesive layer:
2.4g PDMS was applied flat to an area of 2cm using a wire bar coater 2 Pre-curing the glass sheet for 16 hours at room temperature, and drying the glass sheet in an electric heating constant-temperature drying oven for 2 hours at 100 ℃;
(2) preparing an antifouling coating:
the sample is completely soaked in the simethicone for 48h, then placed in a vacuum environment for 3 h, the residual air in the sample is sucked until no air bubbles emerge, and finally, the excess silicon oil on the surface of the sample is removed by rotating the sample at 500rpm for 10 s by using a spin-coating spin coater to obtain a PDMS/OG coating with the thickness of 398.21 microns.
Stability test
The sample of example 1 was used for seawater wash test, and the retention of the lubricant on the surface of the coating was still greater than 80% in 15 days of repeated seawater wash accelerated test, indicating that it has good stability.
Anti-algae adhesion performance test
Selecting a blank glass sheet, a glass sheet adhered with the PDMS/OG coating of the comparative example 1 and a glass sheet adhered with the transparent marine antifouling coating of the examples 1-3 to carry out an anti-algae adhesion performance test, wherein the specific test process is as follows:
the chlorella is taken as an experimental algae species, various sample pieces are immersed in the chlorella culture solution and photographed by a fluorescence microscope, all photographs are photographed under the same conditions (exposure time, contrast, brightness and magnification), and the algae adhesion fouling resistance of the various sample pieces on the 1 st day and the 25 th day is represented.
As shown in FIG. 2, it can be seen from FIG. 2 that a great amount of algae are attached to the glass blank, the amount of attachment of comparative example 1 is slightly reduced but not significantly reduced compared to the glass blank, the amount of attachment of example 3 is less than that of comparative example 1, the amount of attachment of example 2 is less than that of example 3, the amount of attachment of chlorella on the surface of the sample of example 1 on day 25 is not significantly changed from the density on day 1, and almost no attachment is generated, which indicates that the coatings of examples 1 to 3 can effectively inhibit the adhesion fouling of algae, the coatings of example 1 have the most excellent algae adhesion resistance, and the samples of examples 2 to 3 exhibit a certain algae adhesion fouling resistance, but are not particularly good, mainly due to the low content of EM foaming bubbles in the marine antifouling coatings of examples 2 to 3.
Test of antibacterial Property
Selecting a blank glass sheet, a glass sheet adhered with the PDMS/OG coating of the comparative example 1 and a glass sheet adhered with the transparent marine antifouling coating of the examples 1-3 to carry out an antibacterial performance test, wherein the specific test process is as follows:
coli colonies were inoculated into 40 mL of LB broth, cultured with stirring at 200rpm at 37 ℃ for about 24 hours, then extracted by centrifugation, washed 3 times with Phosphate Buffered Saline (PBS) and diluted to a concentration of 108CFU/mL, then the uv-sterilized samples were put into the e-coli solution, subjected to an antibacterial test in a 37 ℃ shaking incubator, and after 5 days, the samples were taken out, gently washed 3 times with 0.9 wt.% NaCl solution, to remove non-adhering bacteria, and then, adhesion of the bacteria to randomly selected 5 sites on the surface of the samples was recorded using a photomicrograph.
As shown in FIG. 3, it can be seen from FIG. 3 that the P-PDMS/OG coating significantly inhibited bacterial adhesion, the number of bacteria adsorbed on the surface of the sample increased with time, and the P-PDMS/OG 25% still maintained good antibacterial adhesion ability in the 5-day bacterial fouling test, as compared to the blank glass plate, and only a small amount of bacteria adhered to the surface thereof was observed, about 8 cells/mm 2 Compared with the PDMS/OG coated glass sheet and the blank glass sheet obtained in the comparative example 1, the adhesion of bacteria on the P-PDMS/OG is obviously inhibited, and the inhibition rate of the P-PDMS/OG 25% in the long-term antibacterial adhesion is the best, and is as high as 99.3%.
The coating surfaces of the embodiments 1 to 3 establish a specially designed microporous structure, so that the surface roughness of the coating is improved, the stability of the surface lubricating layer is kept, the lubricant such as silicon oil has good permeability in polydimethylsiloxane, the lubricant on the green self-repairing surface can migrate from the interior of the polydimethylsiloxane, the locally lost surface lubricating layer is rapidly repaired in a short time, and only a small amount of bacteria and algae are adhered to the surface through the characterization of an antibacterial test (5 days) and an algae adhesion test (25 days), and the antifouling rate and the antibacterial rate are both more than 99%.
As can be seen from the above examples and comparative examples, the environment-friendly green self-repairing type super-smooth surface marine antifouling coating has excellent antifouling performance, can resist seawater immersion for a long time, and has a simple preparation method.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (7)
1. A green self-repairing type super-smooth surface marine antifouling coating is characterized in that polydimethylsiloxane is used as a matrix, non-crosslinked thermal expansion microspheres with the particle size of 5-10 mu m are used as a foaming agent, and a lubricant is added to prepare the coating.
2. The preparation method of the green self-repairing type ultra-smooth surface marine antifouling coating as claimed in claim 1, is characterized by comprising the following specific steps:
(1) adding the non-crosslinked thermal expansion microspheres into polydimethylsiloxane, and stirring for 60-80 minutes to obtain dispersed slurry;
(2) leveling the dispersed slurry obtained in the step (1) by using a coating machine, pre-curing at room temperature, and foaming at constant temperature to form an adhesive layer;
(3) immersing the sample in the step (2) into DMF, performing ultrasonic treatment for 3-4 hours, and cleaning with ethanol to obtain a porous PDMS coating;
(4) and (4) completely soaking the sample obtained in the step (3) in a lubricant for 48-60h, then placing the sample in a vacuum environment for 3-4 h, and rotating the sample for 8-12 seconds at 400-600rpm by using a spin-coating spin coater to obtain the green self-repairing type super-smooth surface marine antifouling coating.
3. The preparation method of the green self-repairing type ultra-smooth surface marine antifouling coating as claimed in claim 2, wherein the non-crosslinked thermal expansion microspheres in the step (1) are low-temperature foaming microspheres with the particle size of about 5-10 μm.
4. The preparation method of the green self-repairing type ultra-smooth surface marine antifouling coating as claimed in claim 2, wherein the mass ratio of the non-crosslinked thermal expansion microspheres and the polydimethylsiloxane in the step (1) is 1: 4-10.
5. The preparation method of the green self-repairing type ultra-smooth surface marine antifouling coating as claimed in claim 2, wherein the foaming temperature in the step (2) is 90-110 ℃ and the foaming time is 1.5-2.5 hours.
6. The method for preparing the green self-repairing type ultra-smooth surface marine antifouling coating as claimed in claim 2, wherein the ultrasonic power in the step (3) is 400-600W.
7. The method for preparing the green self-repairing type ultra-smooth surface marine antifouling coating according to claim 2, wherein the lubricant in the step (4) comprises silicone oil, perfluoropolyether, paraffin oil or ionic liquid.
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CN115558415A (en) * | 2022-11-03 | 2023-01-03 | 中海石油(中国)有限公司 | Novel marine antifouling coating based on polydopamine ball oil storage and preparation method thereof |
CN116179079A (en) * | 2023-03-14 | 2023-05-30 | 清华大学 | Anti-icing coating and preparation method and application thereof |
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