CN117417667A - Super-amphiphobic composite coating for marine equipment and preparation method thereof - Google Patents
Super-amphiphobic composite coating for marine equipment and preparation method thereof Download PDFInfo
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- 239000011248 coating agent Substances 0.000 title claims abstract description 50
- 239000002131 composite material Substances 0.000 title claims abstract description 23
- 238000002360 preparation method Methods 0.000 title claims abstract description 6
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 claims abstract description 34
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 claims abstract description 20
- XMWRBQBLMFGWIX-UHFFFAOYSA-N C60 fullerene Chemical compound C12=C3C(C4=C56)=C7C8=C5C5=C9C%10=C6C6=C4C1=C1C4=C6C6=C%10C%10=C9C9=C%11C5=C8C5=C8C7=C3C3=C7C2=C1C1=C2C4=C6C4=C%10C6=C9C9=C%11C5=C5C8=C3C3=C7C1=C1C2=C4C6=C2C9=C5C3=C12 XMWRBQBLMFGWIX-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910003472 fullerene Inorganic materials 0.000 claims abstract description 15
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 20
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 16
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 15
- 238000002156 mixing Methods 0.000 claims description 15
- 239000000843 powder Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 10
- 235000019400 benzoyl peroxide Nutrition 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 9
- 239000013078 crystal Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 239000000725 suspension Substances 0.000 claims description 6
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- 238000004544 sputter deposition Methods 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 claims description 4
- 238000000227 grinding Methods 0.000 claims description 4
- 238000005406 washing Methods 0.000 claims description 4
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 3
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 238000004132 cross linking Methods 0.000 claims description 3
- 238000010992 reflux Methods 0.000 claims description 3
- 229910000077 silane Inorganic materials 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 abstract description 5
- 239000002245 particle Substances 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000009991 scouring Methods 0.000 abstract description 3
- 229920010741 Ultra High Molecular Weight Polyethylene (UHMWPE) Polymers 0.000 abstract description 2
- 230000003993 interaction Effects 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 18
- 239000000463 material Substances 0.000 description 17
- 239000000047 product Substances 0.000 description 9
- 230000003373 anti-fouling effect Effects 0.000 description 7
- 239000000758 substrate Substances 0.000 description 5
- 241001474374 Blennius Species 0.000 description 4
- 235000019441 ethanol Nutrition 0.000 description 4
- 230000002209 hydrophobic effect Effects 0.000 description 4
- 230000003075 superhydrophobic effect Effects 0.000 description 4
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
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- DCAYPVUWAIABOU-UHFFFAOYSA-N hexadecane Chemical compound CCCCCCCCCCCCCCCC DCAYPVUWAIABOU-UHFFFAOYSA-N 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000001878 scanning electron micrograph Methods 0.000 description 2
- 239000013535 sea water Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- XDLMVUHYZWKMMD-UHFFFAOYSA-N 3-trimethoxysilylpropyl 2-methylprop-2-enoate Chemical compound CO[Si](OC)(OC)CCCOC(=O)C(C)=C XDLMVUHYZWKMMD-UHFFFAOYSA-N 0.000 description 1
- 239000004709 Chlorinated polyethylene Substances 0.000 description 1
- 238000005033 Fourier transform infrared spectroscopy Methods 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- CHIHQLCVLOXUJW-UHFFFAOYSA-N benzoic anhydride Chemical compound C=1C=CC=CC=1C(=O)OC(=O)C1=CC=CC=C1 CHIHQLCVLOXUJW-UHFFFAOYSA-N 0.000 description 1
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- 235000006408 oxalic acid Nutrition 0.000 description 1
- 239000006223 plastic coating Substances 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 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
- C09D123/00—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers
- C09D123/02—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D123/04—Homopolymers or copolymers of ethene
- C09D123/06—Polyethene
-
- 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
- C09D5/08—Anti-corrosive paints
-
- 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
- C09D5/1681—Antifouling coatings characterised by surface structure, e.g. for roughness effect giving superhydrophobic coatings or Lotus effect
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The application relates to a marine tool super-amphiphobic composite coating and a preparation method thereof. The ultra-high molecular weight polyethylene (UHMWPE) coating prepared by the invention is added with the mechanical property of the second phase particle ZnO toughening coating, the interaction of the second phase particle and the multiphase microstructure further reduces the low surface energy of the coating, and then the grafted fullerene (Ful) increases the ultra-hydrophobicity of the strong coating, and compared with the common UHMWPE coating, the Ful/ZnO@UHMWPE ultra-amphiphobic coating has higher corrosion resistance and mechanical strength and stronger wear resistance, solves the problem of sea wave scouring existing on the surface of sea equipment, and has excellent anti-biofouling performance.
Description
Technical Field
The invention belongs to the technical field of protective coating materials of marine equipment, and particularly relates to a super-amphiphobic composite coating material of marine equipment and a preparation method thereof.
Background
Engineering equipment working in the ocean is free from scouring corrosion of sea waves and fouling of the equipment by organisms at any time. The super-amphiphobic composite coating for resisting scouring and resisting bioerosion of marine equipment has the characteristics of super-oleophobic property and super-hydrophobic property, and is an efficient anti-corrosion and anti-fouling material.
At presentPure TiO was used in the study of (C) 2 Or Ultra High Molecular Weight Polyethylene (UHMWPE) coating materials, have some problems. For example, the coatings prepared by the invention patent CN 106833040a and the publication No. CN 111035805 are poor in antifouling property and have to be improved in hydrophobicity. The ultra-high molecular weight polyethylene coating prepared as in the invention patent publication No. CN 102861713A is deficient in abrasion resistance. The silver high chlorinated polyethylene coated steel plate prepared by the novel practical patent publication No. CN 2818137Y is difficult to resist biofouling performance. The coating prepared by the invention can be sprayed onto the substrate by adopting a thermal spraying technology, and the mode is convenient and is not limited by the substrate.
The UHMWPE has self-lubricity so that the wear resistance is more excellent, and the surface adhesion is low, so that the UHMWPE is more suitable for engineering equipment than common engineering materials. In order to enable the UHMWPE coating to be more suitable for marine equipment, a low-surface-energy material which is both antifouling and wear-resistant and suitable for the marine equipment is prepared, modified ZnO grafted styrene is added to the surface of UHMWPE to serve as a second-phase particle toughening coating, and then fullerene is grafted to strengthen self-repairing and superhydrophobicity of the UHMWPE. The Ful/ZnO@UHMWPE super-amphiphobic coating prepared by the application has unique covalent bonds, so that the coating has self-repairing property and mechanical strength, is a low-surface-energy material and has excellent super-hydrophobic performance, and meanwhile, the problem of poor durability of the super-hydrophobic coating is solved due to the fact that the second-phase particles are used as substrates. According to the method, the ZnO modified grafted styrene and fullerene are grafted on the UHMWPE coating, so that the conductivity of the prepared coating is improved. The presence of fullerenes also increases the conductivity of ZnO and inhibits the adsorption of organisms on its surface by the antistatic effect. The hydrophobic wear-resistant antifouling coating can be well solved in the market by combining the hydrophobic wear-resistant antifouling coating with an ultra-high molecular weight polyethylene material.
Disclosure of Invention
The primary purpose of the invention is: the antifouling wear-resistant composite hydrophobic coating material is prepared by selecting materials, has antifouling wear-resistant performance, slows down corrosion and erosion of sea water to the surface of a sea tool substrate, has higher hydrophobicity and low surface energy, and reduces damage to the surface of the substrate caused by adsorption of various organisms and microorganisms in the sea.
In order to achieve the above purpose, the invention is realized by the following technical scheme:
the super-amphiphobic composite coating material is characterized by comprising the following raw materials in parts by weight:
1) UHMWPE; 2) Fullerene crystal (C) 70 ) The method comprises the steps of carrying out a first treatment on the surface of the 3) ZnO; 4) Styrene; 5)
A silane coupling agent; 6) Dibenzoyl oxide (BPO); 7) Acetone.
The composite coating material is prepared by adopting a method comprising the following steps:
1) modification of ZnO with silane, 2) grafting of modified ZnO with styrene, 3) modification of fullerene crystal (C) 70 ) Mixing with the product obtained in the step 2), and performing ultrasonic treatment and drying treatment; 4) Mixing UHMWPE and the product prepared in the step 3) according to the ratio of 20:1-10:1, grinding and mixing; 5) And 4) sputtering the mixed product in the step 4) under a vacuum condition to obtain the super-amphiphobic composite coating.
Further, the fullerene is C 60 And or C70, the average diameter of which is 1 to 20nm.
The preparation method of the super-amphiphobic composite coating comprises the following steps:
1) 2-4 parts of nano ZnO powder is dispersed in ethanol solution by ultrasonic, the pH value is regulated to 4.5-5.5, and 3-6 parts of silane coupling agent is added for modification. Ultrasonic treatment, transferring to a three-neck flask, and condensing and refluxing. Cooled to room temperature, repeatedly centrifugally washed by deionized water and ethanol solution, and dried in vacuum.
2) Adding 1-2 parts of modified ZnO and 0.5-1 part of dibenzoyl peroxide (BPO) into 90-120 parts of acetone, sealing and stirring, adding 15-20 parts of styrene into a beaker filled with the solution, heating in a water bath, cooling to room temperature, centrifuging the obtained product by using acetone, washing and drying.
Grafting ratio:where η is the load factor, m 0 Is of the shape of burningMass, eta before burning 0 The weight loss ratio of the blank was 11.1%
3) And (3) mixing fullerene with the modified ZnO prepared in the second step according to a ratio of 1:1-1:5, and carrying out covalent crosslinking on the mixture and ZnO to prepare suspension with a concentration of 5% -20%, stirring and carrying out ultrasonic treatment. After deposition, drying in vacuum.
4) Mixing UHMWPE and the product obtained in step 3) according to a ratio of 20:1-10:1, and grinding and mixing by a planetary ball mill.
5) And (3) sputtering the mixed product obtained in the step 4) for 5-10 min under vacuum. Thus obtaining the super-amphiphobic composite coating.
Compared with the prior art, the invention has the following beneficial effects:
(1) Compared with UHMWPE coating, the composite coating prepared by the invention has stronger wear resistance, and the SEM scanning images shown in fig. 2 and 3 can observe the combination of fullerene covalent bonds and PE under high magnification, so that the superhydrophobicity of the coating is enhanced.
(2) From fig. 4, it can be seen that the friction and wear properties of the coating are examined in seawater medium, and the coating prepared by the method has better friction properties than the common UHMWPE coating.
(3) As can be seen from FIG. 5, the invention has higher hydrophobic property and can be applied to the use environment of marine equipment.
(4) The coefficient of friction of the coating was measured with a ball and disc tribometer. As shown in fig. 6, the results demonstrate that the coefficient of friction produced is lower and the anti-scour benefits are better than conventional UHMWPE coatings.
(5) According to seaweed attaching experiments, the material can effectively inhibit seaweed reproduction, which means that the material has higher anti-corrosion characteristics than common engineering plastic coatings. As shown in fig. 7.
Drawings
FIG. 1 is a technical roadmap for preparing Ful/ZnO@UHMWPE super-amphiphobic coating
FIG. 2 SEM image of the surface morphology of Ful/ZnO@UHMWPE super-amphiphobic coating, the nano ZnO content (wt%) is (a) 0, (b) 0.3, (c) 0.5, (d) 0.7
FIG. 3 SEM image of the surface morphology of UHMWP raw powder
FIG. 4 friction and wear test of Ful/ZnO@UHMWPE coating
FIG. 5Ful/ZnO@UHMWPE superhydrophobic contact angle test
FIG. 6 coefficient of friction test of Ful/ZnO@UHMWPE coating
FIG. 7Ful/ZnO@UHMWPE seaweed attachment experiment
FIG. 8 tensile properties of Ful/ZnO@UHMWPE coating versus ZnO content: tensile Strength (TS) and Compressive Strength (CS); tensile Modulus (TM) and Compressive Modulus (CM)
FIG. 9 FTIR contrast spectra of Ful@UHMWPE and Ful/ZnO@UHMWPE
The effect of temperature on the melt viscosity of Ful/zno@uhmwpe composite material of fig. 10 (γ= 242.3s -1 )
Detailed Description
The technical route of the present invention is further described below by way of specific examples, but the scope of the present invention is not limited to the specific examples.
Examples
3g of nano ZnO powder is taken, after ultrasonic oscillation for 3 hours, the nano ZnO powder is dissolved in 250mL of ethanol solution, 1mL of oxalic acid solution (2M) is used for regulating the pH value to 5, 3g of 3- (methacryloyloxy) propyl trimethoxy silane is slowly added, then ultrasonic oscillation is carried out for 1 hour, and then the nano ZnO powder is transferred into a 500mL three-neck flask for condensation reflux reaction for 9 hours at 80 ℃. Cooling to room temperature, repeatedly centrifuging and washing the reaction product by absolute ethyl alcohol and deionized water, and drying in vacuum at 100 ℃ for 12 hours.
2g of modified ZnO and 1g of dibenzoyl peroxide (BPO) are added into 100mL of acetone, the mixture is stirred for 20min in a sealing way, 20mL of styrene is added into a beaker filled with the solution, the mixture is heated for 8h in a water bath at 80 ℃, the mixture is cooled to room temperature, and the obtained product is centrifuged by acetone, washed and dried.
Fullerene crystal (C 70 ) Mixing the modified and grafted ZnO with ZnO according to a ratio of 1:1, carrying out covalent crosslinking on the modified and grafted ZnO, preparing a suspension with a concentration of 10%, and placing the suspension in room temperature for stirring for 1h and carrying out ultrasonic treatment for 1h.
After the suspension had been deposited, it was dried in vacuo at 100℃for 1h.
Mixing UHMWPE and the material additive according to a ratio of 15:1, mechanically mixing the dried powder for 12 hours by using a planetary ball mill, using ethanol as a medium, setting a ball-material ratio of 20:1 and a rotating speed of 300r/min, and drying the product in vacuum at 100 ℃ to obtain the composite powder.
Ar + The current intensity was kept constant at 25mA, ar + The light source is 25cm away from the target, the beam point is adjusted to cover the maximum surface of the test piece, the incident angle is 45 degrees, and the mixed product in the previous step is subjected to sputtering treatment for 5min under the vacuum condition. The super-amphiphobic composite coating can be obtained.
Performance testing
To evaluate the mechanical properties of pure UHMWPE and Ful/zno@uhmwpe composites, compression, tension and microhardness tests were performed. Compression and tension tests were performed using a universal tester. The dimensions of the compressed sample were 9mm by 25mm 3 The compressed length is 25mm. The average aspect ratio of all samples was about 2.8, which resulted in deformation of the double tube. Unless early failure occurred, all tests were performed at a crosshead speed of 5mm/min until the compression displacement reached 10mm. The stress-strain curves were used to calculate the mean and standard deviation of compressive strength and modulus for the five samples. The tensile test results were calculated using ASTM D638 with a crosshead speed of 5mm/min. The stress-strain graph is used to calculate the mean and standard deviation of tensile strength, tensile modulus and elongation at break for 5 samples. Microhardness testing was performed using an Shimadzu microhardness tester Type-M. The vickers hardness number (Hmv) was determined from the following formula:
H_mv＝1854.4×P/d^2
where d is the diagonal length measurement (μm) of the pyramidal indentation of the sample surface and P is the test load (g) of the diamond indenter. The test load of micro hardness indentation on the surface of the sample is 50g, and the indentation time is 10s. To calculate the mean and standard deviation, six measurements were taken for each sample.
To evaluate the hydrophobicity of Ful/zno@uhmwpe, contact angle tests were performed with ionized water and n-hexadecane as test liquids, 4 μl of test liquid was aspirated with a small needle tube and slowly dropped onto the coating surface, and the contact angles generated by 2 different polarity test liquids and the sample surface were tested by an optical contact angle tester. To reduce the error, three different points are selected for each experimental sample to be tested, and the average value is taken as the actual measurement result. The contact angle of the droplet with the solid surface was determined by a Wenzel model. The Wenzel equation is:
cosθ w ＝(γ sv -γ sl )/γ lv ＝rcosθ γ
r＝S A /S G
wherein θ is w Apparent contact angle, θ, for a roughened solid surface γ An intrinsic contact angle of an absolute smooth, uniform, inert ideal solid, r represents the surface roughness of the material, S A Representing the actual area of the rough surface S G Representing the projected area of the roughened surface.
Other tests such as friction and abrasion tests, friction coefficient tests, seaweed attachment experiments and the like are completed by adopting a conventional test method.
Claims (8)
1. The super-amphiphobic composite coating is characterized by comprising the following components: UHMWPE, fullerene crystals, znO and styrene;
the composite coating is prepared by adopting a method comprising the following steps:
1) ZnO is modified by silane;
2) Modified ZnO grafted styrene;
3) Mixing fullerene crystals with the modified and grafted ZnO prepared in the step 2) according to the ratio of 1:1-1:5, and carrying out ultrasonic and drying treatment;
4) Mixing UHMWPE and the product prepared in the step 3) according to the ratio of 20:1-10:1, grinding and mixing;
5) And (3) sputtering the mixed product obtained in the step 4) under a vacuum condition to obtain the super-amphiphobic composite coating.
2. The super-amphiphobic composite coating according to claim 1, wherein the fullerene crystal is C 60 And or C 70 The average diameter is 1-20 nm.
3. A method for preparing the super-amphiphobic composite coating as recited in claim 1, comprising the steps of:
1) Modifying nano ZnO by silane, condensing and refluxing, washing and drying:
2) Adding the modified ZnO and dibenzoyl peroxide (BPO) into acetone, stirring, adding styrene into a beaker filled with the solution, heating in a water bath, cooling to room temperature, centrifuging the obtained product with acetone, washing and drying;
3) Mixing fullerene high crystals with the modified and grafted ZnO prepared in the step 2), stirring at room temperature, and carrying out ultrasonic treatment and drying treatment;
4) Mixing UHMWPE and the product prepared in the step 3) according to the ratio of 20:1-10:1, grinding and mixing;
5) And (3) sputtering the mixed product obtained in the step 4) under a vacuum condition to obtain the super-amphiphobic composite coating.
4. The method according to claim 3, wherein in step 1), the nano ZnO powder is ultrasonically dispersed in an ethanol solution, the pH is adjusted to 4.5-5.5, a silane coupling agent is added to modify the nano ZnO powder, the nano ZnO powder is ultrasonically treated, and then the nano ZnO powder is transferred, condensed and refluxed, cooled, centrifugally washed and vacuum dried.
5. The method according to claim 3, wherein in the step 2), 1 to 2 parts of the modified ZnO and 0.5 to 1 part of dibenzoyl peroxide (BPO) are added into acetone, the mixture is stirred in a sealed manner, 15 to 20 parts of styrene is added into a beaker filled with the solution, heated in a water bath, cooled, centrifuged, washed and dried.
6. The preparation method according to claim 3, wherein in the step 3), fullerene and modified and grafted ZnO prepared in the step 2) are mixed according to a ratio of 1:1-1:5, and are subjected to covalent crosslinking to prepare a suspension with a concentration of 5% -20%, and the suspension is stirred, subjected to ultrasonic treatment, deposited and dried in vacuum.
7. The method according to claim 3, wherein the step 5) is performed with the mixed product of the step 4) under vacuum for 5 to 10 minutes.
8. Use of the super-amphiphobic composite coating of claim 1, wherein: the method is applied to marine equipment.
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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