A high-performance marine coating based on basalt fiber flakes and its preparation method

Abstract

This invention relates to the field of marine coating technology, specifically to a high-performance marine coating based on basalt fiber flakes and its preparation method. The coating comprises the following raw materials in parts by weight: 60-80 parts waterborne epoxy resin, 50-60 parts water, 20-30 parts filler, 3-5 parts curing agent, 2-4 parts colorant, 0.8-1.2 parts leveling agent, and 0.8-1.2 parts defoamer. In the preparation of this marine coating, the addition of filler, after treatment of horn powder, causes the amino groups of the collagen in the horn powder to undergo a free radical grafting reaction, forming polyvinyl ester branches. This increases the surface polar groups, enabling hydrogen bonding with the hydroxyl groups of the epoxy resin and forming a coating layer with methyl methacrylate, creating a three-dimensional network structure. This effectively improves the toughness of the coating, thereby enhancing its wear resistance.

Description

Technical Field

[0001] This invention relates to the field of marine coating technology, specifically to a high-performance marine coating based on basalt fiber flakes and its preparation method. Background Technology

[0002] Marine coatings are coatings used on various parts of a ship, providing protection and decoration for the ship's surface.

[0003] In existing technologies, marine coatings typically employ the addition of high-hardness granular materials to enhance wear resistance. However, a large number of fine particles results in a rough coating surface, generating significant friction under external forces, thus hindering the improvement of wear resistance. Therefore, this invention provides a high-performance marine coating based on basalt fiber flakes and its preparation method. Summary of the Invention

[0004] The purpose of this invention is to provide a high-performance marine coating based on basalt fiber flakes and its preparation method. The marine coating prepared by this invention not only has good wear resistance but also excellent adhesion, effectively improving the performance of marine coatings.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] In a first aspect, the present invention provides a high-performance marine coating based on basalt fiber flakes, comprising the following raw materials in parts by weight: 60-80 parts waterborne epoxy resin, 50-60 parts water, 20-30 parts filler, 3-5 parts curing agent, 2-4 parts color powder, 0.8-1.2 parts leveling agent, and 0.8-1.2 parts defoamer;

[0007] The filler is made by mixing basalt fiber scales and horn powder, with a mass ratio of basalt fiber scales to horn powder of 1:(0.2-0.3). The horn powder is modified before the base material is prepared.

[0008] Further, the method for modifying the horn powder is as follows: the horn powder is washed, dried, and then finely ground to a particle size of 10–20 μm. The ground horn powder is then added to a reaction vessel, along with a first mixed solution. After the mixture is homogenized, it is allowed to stand for 4–6 hours. The reaction vessel is then sealed and heated to 90–110°C. The stirring speed is set to 80–120 r / min, and the mixture is stirred at this constant temperature for 2–4 hours. The resulting product is washed with anhydrous ethanol and then added to a centrifuge set to 3000–4000 rpm. Centrifuge at 0 r / min for 8–12 min, obtain precipitate from the centrifuged product, send the precipitate to an oven, set the oven temperature to 50–60℃ and dry for 10–20 h to obtain coarse material, add the coarse material and the second mixture to a mixer, set the mixer temperature to 200–300 r / min and stir for 20–30 min, seal the obtained product in aluminum foil and press under a pressure of 10 MPa for 20–30 min, send the obtained product to an oven, set the oven temperature to 70–90℃ and dry for 4–6 h to complete the modification treatment of horn powder.

[0009] Furthermore, the mass of the first mixture is 20-30% of the mass of the horn powder, and the mass of the second mixture is 30-40% of the mass of the coarse material.

[0010] Further, the first mixture is prepared by the following method: vinyl acetate, N,N-dimethylformamide, potassium carbonate, cysteine, and silicone oil are added to a mixer, and the mixer is set to 80-120 r / min and stirred for 20-30 min to obtain the first mixture, wherein the mass ratio of each raw material is 1:(2-4):(1.2-1.4):(0.1-0.3):(0.4-0.6).

[0011] Further, the second mixture is prepared by the following method: deionized water, azobisisobutyronitrile, methyl methacrylate, and anhydrous ethanol are added to a mixer, and the mixer is set to 120-160 r / min and stirred for 10-20 min to obtain the second mixture, wherein the mass ratio of each raw material is 1:(0.02-0.04):(0.2-0.4):(0.3-0.5).

[0012] Further, the method for preparing the filler is as follows: basalt fiber flakes and the blend are added to a ball mill and milled at 300-400 r / min for 40-60 min. The resulting product is added to a mixer and stirred at 400-500 r / min for 20-30 min. Then, modified horn powder, methyl ethyl ketone (MEK), and deionized water are added to the mixer and stirred at 600-800 r / min for 40-60 min. The mass of MEK is 10-20% of the mass of basalt fiber, the mass of deionized water is 60-80% of the mass of MEK, and the mass of the blend is 10-20% of the mass of basalt fiber flakes.

[0013] Further, the blend is prepared by the following method: water-based acrylic resin and nano-silica are added to an ultrasonic disperser and treated at 200-300W for 10-20 minutes. The resulting product is added to a mixer, where BYK-110 dispersant, calcium stearate, and nano-cellulose are added. The mixer is set to 400-600r / min and stirred for 20-30 minutes to obtain the blend.

[0014] Further, the mass ratio of the waterborne acrylic resin to nano-silica is 1:(0.1-0.3), the mass of the BYK-110 dispersant is 0.6-0.8% of the mass of the waterborne acrylic resin, the mass of the calcium stearate is 2-4% of the mass of the waterborne acrylic resin, and the mass of the nano-cellulose is 3-5% of the mass of the waterborne acrylic resin.

[0015] Furthermore, the leveling agent is selected from acrylates, the defoamer is selected from mineral oil defoamers, and the curing agent is selected from fatty amine curing agents.

[0016] Secondly, the present invention also provides a method for preparing a high-performance marine coating based on basalt fiber flakes, comprising the following steps: weighing water-based epoxy resin, water, filler, curing agent, colorant, leveling agent and defoamer as needed and adding them to a mixer, setting the mixer to 600-800 r / min and stirring for 30-50 min to obtain the marine coating.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. In the preparation of marine coatings, the addition of fillers allows the amino groups of collagen in horn powder to undergo free radical grafting reactions after processing, forming polyvinyl ester branches. This increases the number of polar groups on the surface, enabling them to form hydrogen bonds with the hydroxyl groups of epoxy resin and to form a coating layer with methyl methacrylate, creating a three-dimensional network structure. This effectively improves the toughness of the coating and thus enhances the wear resistance of the marine coating.

[0019] 2. In this invention, by mixing basalt fiber flakes and horn powder in the filler system, the basalt fiber flakes, with their sheet-like structure, can be arranged in the coating to form a dense barrier, which can improve hardness and block the penetration of corrosive media. After the marine coating is applied, the basalt flakes bear the main frictional stress, while the horn powder, with its plastic deformation ability, plays the role of absorbing impact energy, thus establishing a rigid and flexible complementary structure and achieving a synergistic improvement in the wear resistance and adhesion of the marine coating.

[0020] 3. In this invention, during the preparation and processing of the filler, the internal pores of the horn powder can be eliminated by pressing, thereby reducing its surface roughness, reducing the surface stress concentration points after coating, and thus improving the wear resistance of the coating. Attached Figure Description

[0021] Figure 1 The flowchart presents a high-performance marine coating based on basalt fiber flakes and its preparation method. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0023] It should be noted that the raw materials used in the following embodiments are all commercially available.

[0024] Example 1:

[0025] The raw materials include the following parts by weight: 60 parts water-based epoxy resin, 50 parts water, 20 parts filler, 3 parts curing agent, 2 parts color powder, 0.8 parts leveling agent, and 0.8 parts defoamer;

[0026] The filler is made by mixing basalt fiber flakes and horn powder, with a mass ratio of basalt fiber flakes to horn powder of 1:0.2. The horn powder is modified before the base material is prepared.

[0027] The method for modifying horn powder is as follows: After washing and drying, the horn powder is finely ground to a particle size of 10 μm. The ground horn powder is then added to a reaction vessel, along with a first mixed liquid. After the mixture is homogenized, it is allowed to stand for 4 hours. The reaction vessel is then sealed and heated to 90°C. The stirring speed is set to 80 r / min, and the mixture is stirred at a constant temperature for 2 hours. The resulting product is washed with anhydrous ethanol and then added to a centrifuge. The centrifuge is set to 3000 r / min and centrifuged for 8 minutes. A precipitate is obtained from the centrifuged product and sent to an oven. The oven is set to 50°C and dried for 10 hours to obtain coarse material. The coarse material and a second mixed liquid are added to a mixer and stirred at 200 r / min for 20 minutes. The resulting product is sealed in aluminum foil and pressed under a pressure of 10 MPa for 20 minutes. The resulting product is then sent to an oven and dried at 70°C for 4 hours to complete the modification of the horn powder.

[0028] The mass of the first mixture is 20% of the mass of the horn powder, and the mass of the second mixture is 30% of the mass of the coarse material.

[0029] The first mixture was prepared by the following method: vinyl acetate, N,N-dimethylformamide, potassium carbonate, cysteine, and silicone oil were added to a mixer, and the mixer was set to 80 r / min and stirred for 20 min to obtain the first mixture. The mass ratio of each raw material was 1:2:1.2:0.1:0.4.

[0030] The second mixture was prepared by the following method: deionized water, azobisisobutyronitrile, methyl methacrylate, and anhydrous ethanol were added to a mixer, and the mixer was set to 120 r / min and stirred for 10 min to obtain the second mixture. The mass ratio of each raw material was 1:0.02:0.2:0.3.

[0031] The filler preparation method is as follows: basalt fiber flakes and the blend are added to a ball mill and milled at 300 r / min for 40 min. The resulting product is added to a mixer and stirred at 400 r / min for 20 min. Then, modified horn powder, methyl ethyl ketone (MEK), and deionized water are added to the mixer and stirred at 600 r / min for 4 min. The mass of MEK is 10% of the mass of basalt fiber, the mass of deionized water is 60% of the mass of MEK, and the mass of the blend is 10% of the mass of basalt fiber flakes.

[0032] The blend was prepared by the following method: water-based acrylic resin and nano-silica were added to an ultrasonic disperser and treated at 200W for 10 minutes. The resulting product was added to a mixer, and BYK-110 dispersant, calcium stearate, and nano-cellulose were added to the mixer. The mixer was set to 400r / min and stirred for 20 minutes to obtain the blend.

[0033] The mass ratio of waterborne acrylic resin to nano-silica is 1:0.1, the mass of BYK-110 dispersant is 0.6% of the mass of waterborne acrylic resin, the mass of calcium stearate is 2% of the mass of waterborne acrylic resin, and the mass of nano-cellulose is 3% of the mass of waterborne acrylic resin.

[0034] The leveling agent is acrylate, the defoamer is mineral oil defoamer, and the curing agent is fatty amine curing agent.

[0035] The preparation method of high-performance marine coating based on basalt fiber flakes includes the following steps: weighing water-based epoxy resin, water, filler, curing agent, color powder, leveling agent and defoamer as needed and adding them to a mixer, setting the mixer to 600 r / min and stirring for 30 min to obtain the marine coating.

[0036] Example 2:

[0037] The raw materials include the following parts by weight: 70 parts water-based epoxy resin, 55 parts water, 25 parts filler, 4 parts curing agent, 3 parts color powder, 1 part leveling agent, and 1 part defoamer;

[0038] The filler is made by mixing basalt fiber flakes and horn powder, with a mass ratio of basalt fiber flakes to horn powder of 1:0.25. The horn powder is modified before the base material is prepared.

[0039] The method for modifying horn powder is as follows: After washing and drying, the horn powder is finely ground to a particle size of 15μm. The ground horn powder is then added to a reaction vessel, along with a first mixed liquid. After the mixture is homogenized, it is allowed to stand for 5 hours. The reaction vessel is then sealed and heated to 100℃. The stirring speed is set to 100r / min, and the mixture is stirred at a constant temperature for 3 hours. The resulting product is washed with anhydrous ethanol and then added to a centrifuge. The centrifuge is set to 3500r / min and centrifuged for 10 minutes. A precipitate is obtained from the centrifuged product and sent to an oven. The oven is set to 55℃ and dried for 15 hours to obtain coarse material. The coarse material and a second mixed liquid are added to a mixer and stirred at 250r / min for 25 minutes. The resulting product is sealed in aluminum foil and pressed under a pressure of 10MPa for 25 minutes. The resulting product is then sent to an oven and dried at 80℃ for 5 hours to complete the modification of the horn powder.

[0040] The mass of the first mixture is 25% of the mass of the horn powder, and the mass of the second mixture is 35% of the mass of the coarse material.

[0041] The first mixture is prepared by the following method: vinyl acetate, N,N-dimethylformamide, potassium carbonate, cysteine, and silicone oil are added to a mixer, and the mixer is set to 100 r / min and stirred for 25 min to obtain the first mixture. The mass ratio of each raw material is 1:3:1.3:0.2:0.5.

[0042] The second mixture was prepared by the following method: deionized water, azobisisobutyronitrile, methyl methacrylate, and anhydrous ethanol were added to a mixer, and the mixer was set to 140 r / min and stirred for 15 min to obtain the second mixture. The mass ratio of each raw material was 1:0.03:0.3:0.4.

[0043] The filler preparation method is as follows: basalt fiber flakes and the blend are added to a ball mill and milled at 350 r / min for 50 min. The resulting product is added to a mixer and stirred at 450 r / min for 25 min. Then, modified horn powder, methyl ethyl ketone (MEK), and deionized water are added to the mixer and stirred at 700 r / min for 50 min. The mass of MEK is 15% of the mass of basalt fiber, the mass of deionized water is 70% of the mass of MEK, and the mass of the blend is 15% of the mass of basalt fiber flakes.

[0044] The blend was prepared by the following method: water-based acrylic resin and nano-silica were added to an ultrasonic disperser and treated at 250W for 15 minutes. The resulting product was added to a mixer, where BYK-110 dispersant, calcium stearate, and nano-cellulose were added. The mixer was set to 500r / min and stirred for 25 minutes to obtain the blend.

[0045] The mass ratio of waterborne acrylic resin to nano-silica is 1:0.2, the mass of BYK-110 dispersant is 0.7% of the mass of waterborne acrylic resin, the mass of calcium stearate is 3% of the mass of waterborne acrylic resin, and the mass of nano-cellulose is 4% of the mass of waterborne acrylic resin.

[0046] The leveling agent is acrylate, the defoamer is mineral oil defoamer, and the curing agent is fatty amine curing agent.

[0047] The preparation method of high-performance marine coating based on basalt fiber flakes includes the following steps: weigh water-based epoxy resin, water, filler, curing agent, color powder, leveling agent and defoamer as needed and add them to a mixer. Set the mixer to 700 r / min and stir for 40 min to obtain the marine coating.

[0048] Example 3:

[0049] The raw materials include the following parts by weight: 80 parts water-based epoxy resin, 60 parts water, 30 parts filler, 5 parts curing agent, 4 parts color powder, 1.2 parts leveling agent, and 1.2 parts defoamer;

[0050] The filler is made by mixing basalt fiber flakes and horn powder, with a mass ratio of basalt fiber flakes to horn powder of 1:0.3. The horn powder is modified before the base material is prepared.

[0051] The method for modifying horn powder is as follows: After washing and drying, the horn powder is finely ground to a particle size of 20 μm. The ground horn powder is then added to a reaction vessel, along with a first mixed liquid. After the mixture is homogenized, it is allowed to stand for 6 hours. The reaction vessel is then sealed and heated to 110°C. The stirring speed is set to 120 r / min, and the mixture is stirred at a constant temperature for 4 hours. The resulting product is washed with anhydrous ethanol and then added to a centrifuge. The centrifuge is set to 4000 r / min and centrifuged for 12 minutes. A precipitate is obtained from the centrifuged product and sent to an oven. The oven is set to 60°C and dried for 20 hours to obtain coarse material. The coarse material and a second mixed liquid are added to a mixer and stirred at 300 r / min for 30 minutes. The resulting product is sealed in aluminum foil and pressed under a pressure of 10 MPa for 30 minutes. The resulting product is then sent to an oven and dried at 90°C for 6 hours to complete the modification of the horn powder.

[0052] The mass of the first mixture is 30% of the mass of the horn powder, and the mass of the second mixture is 40% of the mass of the coarse material.

[0053] The first mixture was prepared by the following method: vinyl acetate, N,N-dimethylformamide, potassium carbonate, cysteine, and silicone oil were added to a mixer, and the mixer was set to 120 r / min and stirred for 30 min to obtain the first mixture. The mass ratio of each raw material was 1:4:1.4:0.3:0.6.

[0054] The second mixture was prepared by the following method: deionized water, azobisisobutyronitrile, methyl methacrylate, and anhydrous ethanol were added to a mixer, and the mixer was set to 160 r / min and stirred for 20 min to obtain the second mixture. The mass ratio of each raw material was 1:0.04:0.4:0.5.

[0055] The filler preparation method is as follows: basalt fiber flakes and the blend are added to a ball mill and milled at 400 r / min for 60 min. The resulting product is added to a mixer and stirred at 500 r / min for 30 min. Then, modified horn powder, methyl ethyl ketone (MEK), and deionized water are added to the mixer and stirred at 800 r / min for 60 min. The mass of MEK is 20% of the mass of basalt fiber, the mass of deionized water is 80% of the mass of MEK, and the mass of the blend is 20% of the mass of basalt fiber flakes.

[0056] The blend was prepared by the following method: water-based acrylic resin and nano-silica were added to an ultrasonic disperser and treated at 300W for 20 minutes. The resulting product was added to a mixer, and BYK-110 dispersant, calcium stearate, and nano-cellulose were added to the mixer. The mixer was set to 600r / min and stirred for 30 minutes to obtain the blend.

[0057] The mass ratio of waterborne acrylic resin to nano-silica is 1:0.3, the mass of BYK-110 dispersant is 0.8% of the mass of waterborne acrylic resin, the mass of calcium stearate is 4% of the mass of waterborne acrylic resin, and the mass of nano-cellulose is 5% of the mass of waterborne acrylic resin.

[0058] The leveling agent is acrylate, the defoamer is mineral oil defoamer, and the curing agent is fatty amine curing agent.

[0059] The preparation method of high-performance marine coating based on basalt fiber flakes includes the following steps: weigh water-based epoxy resin, water, filler, curing agent, color powder, leveling agent and defoamer as needed and add them to a mixer. Set the mixer to 800 r / min and stir for 50 min to obtain the marine coating.

[0060] Comparative Example 1: The difference between this comparative example and Example 1 is that the horn powder was not modified in this comparative example.

[0061] Comparative Example 2: The difference between this comparative example and Example 1 is that this comparative example does not contain the first mixture.

[0062] Comparative Example 3 differs from Example 1 in that an equal amount of nano-silica is used to replace the filler in this comparative example.

[0063] Comparative Example 4 differs from Example 1 in that it does not contain filler.

[0064] Performance testing: The marine coatings prepared in Examples 1, 2, 3, 1, 2, 3, and 4 were subjected to performance tests, and the test data are recorded in the table below:

[0065] Testing items Wear mass loss (mg) Adhesion rating Example 1 5.1 1 Example 2 4.9 0 Example 3 5.4 1 Comparative Example 1 8.9 2 Comparative Example 2 9.7 2 Comparative Example 3 11.4 3 Comparative Example 4 12.6 3

[0066] In the performance test, the test methods in GB / T1768-2006 were used to test the wear mass loss of the marine coatings prepared in Example 1, Example 2, Example 3, Comparative Example 1, Comparative Example 2, Comparative Example 3 and Comparative Example 4.

[0067] The adhesion grades of the marine coatings prepared in Examples 1, 2, 3, 1, 2, 3 and 4 were tested using the test methods in GB / T9286-2021.

[0068] It is evident that the abrasion resistance and adhesion properties of the marine coatings prepared in Comparative Examples 1, 2, 3, and 4 are all lower than those in Examples 1, 2, and 3. This indicates that in the preparation of marine coatings, the addition of fillers and the treatment of horn powder allow the amino groups of collagen in the horn powder to undergo free radical grafting reactions, forming polyvinyl ester branches. This increases the surface polar groups, enabling them to form hydrogen bonds with the hydroxyl groups of epoxy resin and to form a coating layer with methyl methacrylate, creating a three-dimensional network structure that effectively improves the toughness of the coating and thus enhances its abrasion resistance.

[0069] By using a mixture of basalt fiber flakes and horn powder in the filler system, the basalt fiber flakes can be arranged in the coating to form a dense barrier by utilizing their sheet-like structure. This not only increases the hardness but also blocks the penetration of corrosive media. After the marine coating is applied, the basalt flakes bear the main frictional stress, while the horn powder absorbs the impact energy by utilizing its plastic deformation ability. This establishes a rigid and flexible complementary structure, achieving a synergistic improvement in the wear resistance and adhesion of the marine coating.

[0070] During the preparation and processing of fillers, the internal pores of the horn powder can be eliminated by pressing, reducing its surface roughness and decreasing the stress concentration points on the surface after coating, thereby improving the wear resistance of the coating.

[0071] By comparing and analyzing the relevant data in the table, it can be seen that the marine coating prepared by this invention not only has good wear resistance but also excellent adhesion. This indicates that the high-performance marine coating based on basalt fiber flakes provided by this invention has a broader market prospect and is more suitable for widespread application.

[0072] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0073] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A high-performance marine coating based on basalt fiber flakes, characterized in that: The raw materials include the following parts by weight: 60-80 parts waterborne epoxy resin, 50-60 parts water, 20-30 parts filler, 3-5 parts curing agent, 2-4 parts color powder, 0.8-1.2 parts leveling agent, and 0.8-1.2 parts defoamer; The filler is made by mixing basalt fiber scales and horn powder, with a mass ratio of basalt fiber scales to horn powder of 1:(0.2-0.3). The horn powder is modified before the base material is prepared. The method for modifying the horn powder is as follows: the horn powder is washed, dried, and then finely ground to a particle size of 10–20 μm. The ground horn powder is then added to a reaction vessel, along with a first mixed solution. After the mixture is homogenized, it is allowed to stand for 4–6 hours. The reaction vessel is then sealed and heated to 90–110°C. The stirring speed is set to 80–120 r / min, and the mixture is stirred at this constant temperature for 2–4 hours. The resulting product is washed with anhydrous ethanol and then added to a centrifuge set to 3000–4000 r / min. Centrifuge at 8-12 min for 8-12 min, obtain precipitate from the centrifuged product, send the precipitate to an oven, set the oven temperature to 50-60℃ and dry for 10-20 h to obtain coarse material, add the coarse material and the second mixture to a mixer, set the mixer temperature to 200-300 r / min and stir for 20-30 min, seal the obtained product in aluminum foil, press under 10 MPa pressure for 20-30 min, send the obtained product to an oven, set the oven temperature to 70-90℃ and dry for 4-6 h to complete the modification treatment of horn powder; The first mixture is prepared by the following method: vinyl acetate, N,N-dimethylformamide, potassium carbonate, cysteine, and silicone oil are added to a mixer, and the mixer is set to 80-120 r / min and stirred for 20-30 min to obtain the first mixture. The mass ratio of each raw material is 1:(2-4):(1.2-1.4):(0.1-0.3):(0.4-0.6). The second mixture is prepared by the following method: deionized water, azobisisobutyronitrile, methyl methacrylate, and anhydrous ethanol are added to a mixer, which is set to 120-160 r / min and stirred for 10-20 min to obtain the second mixture. The mass ratio of each raw material is 1:(0.02-0.04):(0.2-0.4):(0.3-0.5).

2. The high-performance marine coating based on basalt fiber flakes according to claim 1, characterized in that, The mass of the first mixture is 20-30% of the mass of the horn powder, and the mass of the second mixture is 30-40% of the mass of the coarse material.

3. The high-performance marine coating based on basalt fiber flakes according to claim 1, characterized in that, The method for preparing the filler is as follows: basalt fiber flakes and the blend are added to a ball mill and milled at 300-400 r / min for 40-60 min. The resulting product is added to a mixer and stirred at 400-500 r / min for 20-30 min. Then, modified horn powder, methyl ethyl ketone (MEK), and deionized water are added to the mixer and stirred at 600-800 r / min for 40-60 min. The mass of MEK is 10-20% of the mass of basalt fiber flakes, the mass of deionized water is 60-80% of the mass of MEK, and the mass of the blend is 10-20% of the mass of basalt fiber flakes.

4. The high-performance marine coating based on basalt fiber flakes according to claim 3, characterized in that, The blend is prepared by the following method: water-based acrylic resin and nano-silica are added to an ultrasonic disperser and treated at 200-300W for 10-20 minutes. The resulting product is added to a mixer, where BYK-110 dispersant, calcium stearate, and nano-cellulose are added. The mixer is set to 400-600r / min and stirred for 20-30 minutes to obtain the blend.

5. The high-performance marine coating based on basalt fiber flakes according to claim 4, characterized in that, The mass ratio of the aqueous acrylic resin to the nano silica is 1:(0.1-0.3), the mass of the BYK-110 dispersant is 0.6-0.8% of the mass of the aqueous acrylic resin, the mass of the calcium stearate is 2-4% of the mass of the aqueous acrylic resin, and the mass of the nano cellulose is 3-5% of the mass of the aqueous acrylic resin.

6. The high-performance marine coating based on basalt fiber flakes according to claim 1, characterized in that, The leveling agent is selected from acrylates, the defoamer is selected from mineral oil defoamers, and the curing agent is selected from fatty amine curing agents.

7. A method for preparing a high-performance marine coating based on basalt fiber flakes according to any one of claims 1 to 6, characterized in that, The process includes the following steps: Weigh out water-based epoxy resin, water, filler, curing agent, colorant, leveling agent, and defoamer as needed and add them to a mixer. Set the mixer to 600-800 r / min and stir for 30-50 minutes to obtain the marine coating.

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