Friction-resistant anticorrosive paint and production process thereof

Abstract

The invention relates to the technical field of water-based coatings, and particularly discloses a friction-resistant anticorrosive coating and a production process thereof. The friction-resistant anticorrosive paint is mainly prepared from the following raw materials: a water-based acrylic emulsion, a water-based epoxy emulsion, a water-based fluorocarbon emulsion, modified silicon dioxide, adipic dihydrazide, oleic acid, a wetting dispersant, a coalescing agent, a base material wetting agent, an anti-settling agent, a defoaming agent and deionized water. The modified silicon dioxide is obtained by treating silicon dioxide with gamma-piperazinyl propyl methyl dimethoxy silane, N-(N-acetyl leucyl)-3-amino propyl triethoxy silane, 3-(methacryloyloxy) propyl triethoxy silane and diacetone acrylamide, and the modified silicon dioxide is obtained by treating silicon dioxide with gamma-piperazinyl propyl methyl dimethoxy silane, N-(N-acetyl leucyl)-3-amino propyl triethoxy silane, 3-(methacryloyloxy) propyl triethoxy silane and diacetone acrylamide. According to the friction-resistant anticorrosive paint, through mutual cooperation of the raw materials, a paint film is flat and smooth in appearance, good in glossiness, attractive and natural, has the advantages of being high in impact resistance, high in adhesive force and good in friction resistance, and meets market requirements.

Description

Technical Field

[0001] The present application relates to the technical field of water-based coatings, and more specifically, to a friction-resistant and anti-corrosion coating and a production process thereof. Background Art

[0002] Paint is one of the most widely used anti-corrosion methods. Common paints mainly include oil-based paint and water-based paint. Oil-based paint is also a traditional paint, which contains organic solvents. Organic solvents evaporate during use and easily cause air pollution. Water-based paint is an environmentally friendly paint, which contains no organic solvents, is non-toxic and safe to construct, and has received widespread attention and application. Water-based paints are classified according to performance into anti-corrosion paints, insulating paints, high-temperature resistant paints, aging-resistant paints, etc. For anti-corrosion paints, they have been used in industrial equipment, bridges, ships and other fields, and can protect the substrate, play a good anti-corrosion effect, and extend the service life of equipment or structures. The existing anti-corrosion paints often use water-based acrylic emulsions as raw materials, and add wetting dispersants, film-forming aids, substrate wetting agents and other additives to the raw materials. Although the anti-corrosion paint has a good anti-corrosion effect, due to the complexity and diversity of the external environment, the paint film may crack due to friction, and in severe cases, the film may peel off, that is, the friction resistance is limited and still needs to be improved. Summary of the invention

[0003] In order to improve the friction resistance of the friction-resistant anti-corrosion coating, the present application provides a friction-resistant anti-corrosion coating and a production process thereof.

[0004] In the first aspect, the present application provides a friction-resistant anti-corrosion coating, which adopts the following technical solution: A friction-resistant anti-corrosion coating, which is mainly made of the following raw materials in parts by weight: 50-70 parts of aqueous acrylic emulsion, 20-40 parts of aqueous epoxy emulsion, 5-15 parts of aqueous fluorocarbon emulsion, 9-11 parts of modified silicon dioxide, 2-4 parts of adipic acid dihydrazide, 4-6 parts of oleic acid, 1-3 parts of wetting dispersant, 2-4 parts of film-forming aid, 1-3 parts of substrate wetting agent, 0.5-1.5 parts of anti-settling agent, 0.5-1.5 parts of defoaming agent, and 55-65 parts of deionized water; The modified silicon dioxide is obtained by treating silicon dioxide with gamma-piperazine propyl methyl dimethoxy silane, N-(N-acetyl leucyl)-3-aminopropyl triethoxy silane, 3-(methacryloyloxy) propyl trimethoxy silane and diacetone acrylamide.

[0005] The friction-resistant anti-corrosion coating of the present application, through the mutual coordination between the raw materials, makes the paint film have an impact resistance of >60cm, a tensile strength of >8MPa, a hardness of 5H, and a friction mass loss of <0.7mg / 1000r. It shows the advantages of high impact resistance, strong adhesion, and good friction resistance, and can meet market demand.

[0006] The friction-resistant anticorrosive coating of the present application is based on water-based acrylic emulsion, water-based epoxy emulsion, and water-based fluorocarbon emulsion as raw materials, and modified silica, adipic acid dihydrazide, and oleic acid are added on this basis. In the modified silica, γ-piperazine propyl methyl dimethoxy silane, N-(N-acetyl leucyl)-3-aminopropyl triethoxy silane, 3-(methacryloyloxy) propyl trimethoxy silane, and diacetone acrylamide are grafted on the surface of silica, and active groups such as primary amine, secondary amine, amide, ester, and ketone carbonyl are introduced. The ketone carbonyl in the modified silica can react with the amino group in adipic acid dihydrazide, increase the crosslinking density, and enhance the performance of the paint film. The synergistic enhancement between modified silica and oleic acid is also utilized to increase the interaction and bonding force between the raw materials, improve the integrity of the paint film, make the paint film show higher impact resistance, pull-off strength and friction resistance, and make the paint film appearance smooth and smooth, with good gloss and natural beauty.

[0007] Optionally, the friction-resistant and anti-corrosion coating is mainly made of the following raw materials in parts by weight: 44-65 parts of aqueous acrylic emulsion, 25-35 parts of aqueous epoxy emulsion, 8-12 parts of aqueous fluorocarbon emulsion, 9.5-10.5 parts of modified silica, 2.5-3.5 parts of adipic acid dihydrazide, 4.5-5.5 parts of oleic acid, 1.5-2.5 parts of wetting dispersant, 2.5-3.5 parts of film-forming aid, 1.5-2.5 parts of substrate wetting agent, 0.8-1.2 parts of anti-settling agent, 0.8-1.2 parts of defoaming agent, and 58-62 parts of deionized water.

[0008] By adopting the above technical scheme, the raw material ratio of the friction-resistant anti-corrosion coating is optimized, the adhesion and friction resistance of the paint film are further increased, the paint film exhibits better comprehensive performance, the friction-resistant anti-corrosion coating exhibits better quality and use effect, and the application range is expanded.

[0009] Optionally, the modified silica is prepared by the following method: adding silica to water and mixing, then adding γ-piperazinepropylmethyldimethoxysilane, N-(N-acetyleucyl)-3-aminopropyltriethoxysilane, and 3-(methacryloyloxy)propyltrimethoxysilane, stirring for 1-3 hours, then adding diacetone acrylamide and mixing, then adding an initiator aqueous solution, stirring for 1-3 hours, filtering, washing, and drying to obtain modified silica.

[0010] Optionally, the weight ratio of the silica, γ-piperazinepropylmethyldimethoxysilane, N-(N-acetyleucyl)-3-aminopropyltriethoxysilane, 3-(methacryloyloxy)propyltrimethoxysilane, and diacetone acrylamide is 10:(2-4):(2-4):(0.5-1.5):(1-3).

[0011] By adopting the above technical scheme, γ-piperazinylpropylmethyldimethoxysilane, N-(N-acetylleucyl)-3-aminopropyltriethoxysilane, and 3-(methacryloyloxy)propyltrimethoxysilane are first grafted on the surface of silica using siloxy groups, and then a polymerization reaction occurs in the presence of an initiator, and diacetone acrylamide is grafted on the surface of silica to obtain modified silica. The modified silica of the present application adds raw materials in steps, which not only facilitates the preparation of the modified silica, but also facilitates the full mixing, grafting, and reaction of the raw materials, thereby ensuring the stability of the preparation of the modified silica.

[0012] Optionally, the weight ratio of the silica to the initiator aqueous solution is 10:(0.5-1.5).

[0013] By adopting the above technical solution, the amount of the initiator aqueous solution added is optimized to ensure a more complete reaction, ensure the stability of the modified silica preparation and the use effect, and enhance the friction resistance of the paint film. In multiple embodiments, the weight ratio of silica to the initiator aqueous solution is 10:1, and the weight ratio can also be set to 10:0.5, 10:0.8, 10:1.2, 10:1.5 as needed, but it is not limited to the listed values, and other values ​​not listed within the numerical range are also applicable.

[0014] Optionally, the mass concentration of the initiator aqueous solution is 5-10%.

[0015] By adopting the above technical solution, the mass concentration of the initiator aqueous solution is optimized to facilitate the preparation of the initiator aqueous solution. In multiple embodiments, the mass concentration of the initiator aqueous solution is 8%, and the mass concentration can also be set to 5%, 6%, 7%, 9%, 10% as needed, but it is not limited to the listed values, and other values ​​not listed within the numerical range are also applicable.

[0016] Optionally, the initiator aqueous solution is one or more of an ammonium persulfate aqueous solution, a sodium persulfate aqueous solution, and a potassium persulfate aqueous solution.

[0017] By adopting the above technical solution, the initiator aqueous solution is optimized, which is convenient for the selection of the initiator aqueous solution, and ammonium persulfate, sodium persulfate and potassium persulfate are abundant in source and low in price.

[0018] Optionally, the weight ratio of silicon dioxide to water is 1:(5-15). In multiple embodiments, the weight ratio of silicon dioxide to water is 1:10, and the weight ratio can also be set to 1:5, 1:8, 1:12, 1:15 as needed, but is not limited to the listed values, and other values ​​not listed within the numerical range are also applicable.

[0019] Optionally, the average particle size of the silicon dioxide is 1-5 μm.

[0020] By adopting the above technical solution, the average particle size of silicon dioxide is optimized, silicon dioxide is evenly dispersed in the raw material, and the modification effect of silicon dioxide and the use effect of modified silicon dioxide are guaranteed. In multiple embodiments, the average particle size of silicon dioxide is 3 μm, and the average particle size can also be set to 1 μm, 2 μm, 4 μm, 5 μm as needed, but it is not limited to the listed values, and other values ​​not listed within the numerical range are also applicable.

[0021] Optionally, the aqueous acrylic emulsion is aqueous acrylic emulsion Soluryl RV-4916; the aqueous epoxy emulsion is aqueous epoxy emulsion EP-E-2053PM; and the aqueous fluorocarbon emulsion is aqueous fluorocarbon emulsion CF-303.

[0022] By adopting the above technical scheme, water-based acrylic emulsion, water-based epoxy emulsion and water-based fluorocarbon emulsion are optimized, which not only facilitates the selection of water-based acrylic emulsion, water-based epoxy emulsion and water-based fluorocarbon emulsion, but also ensures the stability of the performance of the friction-resistant anti-corrosion coating, facilitates the processing of the friction-resistant anti-corrosion coating, and at the same time can also utilize the mutual cooperation between them to enhance the mechanical properties, adhesion, water resistance, corrosion resistance and friction resistance of the paint film, so that the paint film exhibits better comprehensive performance.

[0023] Optionally, the wetting and dispersing agent is wetting and dispersing agent TEGO760W; the film-forming aid is film-forming aid DALPAD 292; the substrate wetting agent is substrate wetting agent TEGO 4100; the anti-settling agent is hydroxyethyl cellulose, and the hydroxyethyl cellulose is hydroxyethyl cellulose QP4400H; and the defoaming agent is defoaming agent TEGO 830.

[0024] In a second aspect, the present application provides a production process of the friction-resistant anti-corrosion coating, which adopts the following technical solution: A production process of the friction-resistant anti-corrosion coating comprises the following steps: mixing an aqueous acrylic emulsion, an aqueous epoxy emulsion, and an aqueous fluorocarbon emulsion, then adding deionized water, adipic acid dihydrazide, oleic acid, a wetting dispersant, a film-forming aid, a substrate wetting agent, an anti-settling agent, and a defoaming agent, and then adding modified silicon dioxide to obtain the friction-resistant anti-corrosion coating.

[0025] By adopting the above technical solution, the processing of friction-resistant and anti-corrosion coating is facilitated.

[0026] In summary, this application has at least the following beneficial effects: The friction-resistant anti-corrosion coating of the present application adds modified silicon dioxide, adipic acid dihydrazide and oleic acid to the raw materials. The modified silicon dioxide is grafted with γ-piperazinepropylmethyldimethoxysilane, N-(N-acetyleucyl)-3-aminopropyltriethoxysilane, 3-(methacryloyloxy)propyltrimethoxysilane and diacetone acrylamide, and active groups such as primary amine groups, secondary amine groups, amide groups, ester groups and ketocarbonyl groups are introduced on the surface. The cross-linking density is increased by reacting the ketone carbonyl group on the surface of modified silica with the amine group in adipic acid dihydrazide. The synergistic enhancement between modified silica and oleic acid is also achieved to increase the interaction and bonding force between the raw materials, thereby improving the integrity of the paint film. The paint film has the advantages of high impact resistance, strong adhesion and good friction resistance. The impact resistance of the paint film is greater than 60cm, the pulling strength is greater than 8MPa, the hardness is 5H, and the friction mass loss is less than 0.7mg / 1000r. At the same time, the paint film has a smooth appearance, good gloss, and a natural appearance, which meets market demand. DETAILED DESCRIPTION

[0027] In order to make the present application easier to understand, the present application will be further described in detail below in conjunction with the examples, which are merely illustrative and are not intended to limit the scope of application of the present application. The raw materials or components used in the present application can be obtained through commercial channels or conventional methods unless otherwise specified.

[0028] Preparation Example Preparation Example 1 A modified silicon dioxide is prepared by the following method: Add 10g of silicon dioxide to 100g of water and stir for 10min. Then add 3g of γ-piperazinepropylmethyldimethoxysilane, 3g of N-(N-acetylleucyl)-3-aminopropyltriethoxysilane, and 1g of 3-(methacryloyloxy)propyltrimethoxysilane and stir for 2h. Then add 2g of diacetone acrylamide and stir for 5min. Then add 1g of initiator aqueous solution and stir for 2h. Then filter and wash with water three times, with 100g of water used each time. Then dry to obtain modified silicon dioxide.

[0029] The average particle size of silicon dioxide is 3 μm, and the silicon dioxide is selected from Shenzhen Jitian Chemical Co., Ltd.; the initiator aqueous solution is an ammonium persulfate aqueous solution, and the mass concentration of the ammonium persulfate aqueous solution is 8%.

[0030] Preparation Example 2 A modified silica, which is different from Preparation Example 1 in that, in the preparation method of the modified silica, the added amounts of γ-piperazinylpropylmethyldimethoxysilane, N-(N-acetylleucyl)-3-aminopropyltriethoxysilane, 3-(methacryloyloxy)propyltrimethoxysilane, and diacetoneacrylamide are different, and the added amount of γ-piperazinylpropylmethyldimethoxysilane is 2g, the added amount of N-(N-acetylleucyl)-3-aminopropyltriethoxysilane is 4g, the added amount of 3-(methacryloyloxy)propyltrimethoxysilane is 0.5g, and the added amount of diacetoneacrylamide is 3g.

[0031] Preparation Example 3 A modified silica, which is different from Preparation Example 1 in that, in the preparation method of the modified silica, the added amounts of γ-piperazinylpropylmethyldimethoxysilane, N-(N-acetylleucyl)-3-aminopropyltriethoxysilane, 3-(methacryloyloxy)propyltrimethoxysilane, and diacetoneacrylamide are different, and the added amount of γ-piperazinylpropylmethyldimethoxysilane is 4g, the added amount of N-(N-acetylleucyl)-3-aminopropyltriethoxysilane is 2g, the added amount of 3-(methacryloyloxy)propyltrimethoxysilane is 1.5g, and the added amount of diacetoneacrylamide is 1g. Example

[0032] Table 1 Amount of each raw material used in friction-resistant anticorrosion coatings (unit: ×10g) Example Example 1 Example 2 Example 3 Example 4 Example 5 Water-based acrylic emulsion 60 50 55 65 70 Waterborne epoxy emulsion 30 35 40 25 20 Water-based fluorocarbon emulsion 10 8 12 5 15 Modified silica 10 10.5 11 9 9.5 Adipic acid dihydrazide 3 3.5 2.5 4 2 Oleic acid 5 4.5 6 5.5 4 Wetting and dispersing agents 2 1 1.5 3 2.5 Film-forming aids 3 3.5 2 4 2.5 Substrate wetting agent 2 3 1 2.5 1.5 Anti-settling agent 1 1.5 0.5 0.8 1.2 Defoaming agent 1 1.5 0.5 1.2 0.8 Deionized water 60 65 55 62 58 Example 1 A friction-resistant anti-corrosion coating, the raw materials and raw material ratios of which are shown in Table 1.

[0033] Wherein, the aqueous acrylic emulsion is aqueous acrylic emulsion Soluryl RV-4916; the aqueous epoxy emulsion is aqueous epoxy emulsion EP-E-2053PM; the aqueous fluorocarbon emulsion is aqueous fluorocarbon emulsion CF-303; the wetting dispersant is wetting dispersant TEGO760W; the film-forming aid is film-forming aid DALPAD 292; the substrate wetting agent is substrate wetting agent TEGO 4100; the anti-settling agent is hydroxyethyl cellulose, and the hydroxyethyl cellulose is hydroxyethyl cellulose QP4400H; the defoaming agent is defoaming agent TEGO830; and the modified silica is prepared by the method of Preparation Example 1.

[0034] A production process of a friction-resistant anti-corrosion coating comprises the following steps: Add water-based epoxy emulsion and water-based fluorocarbon emulsion to water-based acrylic emulsion and stir for 5 minutes. Then add deionized water, adipic acid dihydrazide, oleic acid, wetting dispersant, film-forming aid, substrate wetting agent, anti-settling agent, defoaming agent and stir for 10 minutes. Then add modified silica and stir for 15 minutes to obtain friction-resistant anticorrosion coating.

[0035] Embodiment 2-5 A friction-resistant anti-corrosion coating, which differs from Example 1 in that the raw material ratios of the friction-resistant anti-corrosion coating are different, and the raw material ratios of the friction-resistant anti-corrosion coatings of Examples 2-5 are shown in Table 1.

[0036] Example 6 A friction-resistant anti-corrosion coating, which differs from Example 1 in that the source of modified silicon dioxide in the raw materials of the friction-resistant anti-corrosion coating is different, and the modified silicon dioxide is prepared by the method of Preparation Example 2.

[0037] Example 7 A friction-resistant anti-corrosion coating, which differs from Example 1 in that the source of modified silicon dioxide in the raw materials of the friction-resistant anti-corrosion coating is different, and the modified silicon dioxide is prepared by the method of Preparation Example 3.

[0038] Comparative Example Comparative Example 1 A friction-resistant anti-corrosion coating, which differs from Example 1 in that an equal amount of silicon dioxide is used to replace modified silicon dioxide in the raw materials of the friction-resistant anti-corrosion coating.

[0039] Comparative Example 2 A friction-resistant anti-corrosion coating, which differs from Example 1 in that, in the raw materials of the friction-resistant anti-corrosion coating, in the preparation method of modified silicon dioxide, an equal amount of 3-(methacryloyloxy)propyltrimethoxysilane is used to replace γ-piperazinepropylmethyldimethoxysilane and N-(N-acetyleucyl)-3-aminopropyltriethoxysilane.

[0040] Comparative Example 3 A friction-resistant anti-corrosion coating, which differs from Example 1 in that, in the raw materials of the friction-resistant anti-corrosion coating, in the preparation method of modified silica, an equal amount of γ-piperazinylpropylmethyldimethoxysilane is used to replace N-(N-acetylleucyl)-3-aminopropyltriethoxysilane.

[0041] Comparative Example 4 A friction-resistant anti-corrosion coating, which differs from Example 1 in that, in the raw materials of the friction-resistant anti-corrosion coating, in the preparation method of modified silica, an equal amount of N-(N-acetyleucyl)-3-aminopropyltriethoxysilane is used to replace γ-piperazinylpropylmethyldimethoxysilane.

[0042] Comparative Example 5 A friction-resistant anti-corrosion coating, which differs from Example 1 in that, in the raw materials of the friction-resistant anti-corrosion coating, modified silica and oleic acid are replaced by equal amounts of aqueous acrylic emulsion.

[0043] Comparative Example 6 A friction-resistant anti-corrosion coating, which differs from Example 1 in that an equal amount of modified silicon dioxide is used to replace oleic acid in the raw materials of the friction-resistant anti-corrosion coating.

[0044] Comparative Example 7 A friction-resistant anti-corrosion coating, which differs from Example 1 in that an equal amount of oleic acid is used to replace modified silica in the raw materials of the friction-resistant anti-corrosion coating.

[0045] Performance Testing The friction-resistant and anti-corrosion coatings obtained in Examples 1-7 and Comparative Examples 1-7 were respectively taken as samples, and the following performance tests were performed on the samples. The test results are shown in Table 2.

[0046] Among them, the impact resistance of the samples was tested in accordance with GB / T1732-2020 "Determination of impact resistance of paint films".

[0047] According to GB / T5210-2006 “Pull-off adhesion test for paints and varnishes”, the pull-off strength of the sample is tested.

[0048] According to GB / T6739-2022 "Determination of paint film hardness by pencil method for paints and varnishes", the hardness of the sample is tested.

[0049] According to GB / T5478-2008 "Test method for rolling wear of plastics", the friction mass loss of the sample is tested.

[0050] Table 2 Test results As can be seen from Table 2, the paint film obtained by the friction-resistant anticorrosion coating of the present application has high impact resistance and pull-off strength, with an impact resistance of 65-68cm and a pull-off strength of 8.1-8.4MPa, showing high mechanical properties and adhesion. And it also has a high hardness of 5H. At the same time, it also has a low friction mass loss, with a friction mass loss of 0.53-0.65mg / 1000r, showing high friction resistance. The friction-resistant anticorrosion coating of the present application has the advantages of high impact resistance, strong adhesion and good friction resistance through the mutual coordination between the raw materials, and can meet market demand.

[0051] Comparative Examples 1-2 are compared. In Comparative Example 1, silicon dioxide is added to the raw materials of the friction-resistant anticorrosion coating; in Comparative Example 2, modified silicon dioxide is added to the raw materials of the friction-resistant anticorrosion coating, and the silicon dioxide is treated with 3-(methacryloyloxy)propyltrimethoxysilane and diacetone acrylamide. It can be seen that by modifying silicon dioxide, the compatibility can be significantly increased, and the impact resistance and pulling strength of the paint film can be improved, while the friction mass loss can be significantly reduced.

[0052] Compare Example 1 with Comparative Examples 2-4. In the preparation method of modified silica in Comparative Example 2, 3-(methacryloyloxy)propyltrimethoxysilane and diacetone acrylamide are used to treat silica; in the preparation method of modified silica in Comparative Example 3, γ-piperazinepropylmethyldimethoxysilane, 3-(methacryloyloxy)propyltrimethoxysilane and diacetone acrylamide are used to treat silica; in the preparation method of modified silica in Comparative Example 4, N-(N-acetyleucyl)-3-aminopropyltriethoxysilane, 3-(methacryloyloxy)propyltrimethoxysilane and diacetone acrylamide are used to treat silica; in the preparation method of modified silica in Example 1, γ-piperazinepropylmethyldimethoxysilane, N-(N-acetyleucyl)-3-aminopropyltriethoxysilane, 3-(methacryloyloxy)propyltrimethoxysilane and diacetone acrylamide are used to treat silica. It can be seen from this that on the basis of treating silica with 3-(methacryloyloxy)propyltrimethoxysilane and diacetone acrylamide, γ-piperazinepropylmethyldimethoxysilane and N-(N-acetylleucyl)-3-aminopropyltriethoxysilane are further grafted, and the synergistic effect between them is utilized to further improve the use effect of the modified silica, and make the paint film exhibit better impact resistance, adhesion and friction resistance.

[0053] Example 1 is compared with comparative examples 5-7. In comparative example 5, no modified silica and oleic acid are added to the raw materials of the friction-resistant anti-corrosion coating; in comparative example 6, modified silica is added to the raw materials of the friction-resistant anti-corrosion coating; in comparative example 7, oleic acid is added to the raw materials of the friction-resistant anti-corrosion coating; in example 1, modified silica and oleic acid are added to the raw materials of the friction-resistant anti-corrosion coating. It can be seen that by adding modified silica and oleic acid to the raw materials of the friction-resistant anti-corrosion coating at the same time and utilizing the synergistic effect therebetween, the impact resistance, pulling strength and friction resistance of the paint film can be significantly increased, so that the friction-resistant anti-corrosion coating exhibits better quality and use effect.

[0054] It should be noted that the embodiments described above are only used to explain the present application and do not constitute any limitation to the present application. The present application is described with reference to typical embodiments, but it should be understood that the words used therein are descriptive and explanatory words, rather than restrictive words. The present application may be modified as specified within the scope of the claims of the present application, and the present invention may be revised without departing from the scope and spirit of the present application. Although the present application described therein relates to specific methods, materials and embodiments, it does not mean that the present application is limited to the specific examples disclosed therein. On the contrary, the present application can be extended to all other methods and applications with the same functions.

Claims

1. A friction-resistant and anti-corrosion coating, Features: It is mainly made of the following raw materials in parts by weight: 50-70 parts of water-based acrylic emulsion, 20-40 parts of water-based epoxy emulsion, 5-15 parts of water-based fluorocarbon emulsion, 9-11 parts of modified silicon dioxide, 2-4 parts of adipic acid dihydrazide, 4-6 parts of oleic acid, 1-3 parts of wetting and dispersing agent, 2-4 parts of film-forming aid, 1-3 parts of substrate wetting agent, 0.5-1.5 parts of anti-settling agent, 0.5-1.5 parts of defoaming agent, and 55-65 parts of deionized water; The modified silicon dioxide is obtained by treating silicon dioxide with gamma-piperazine propyl methyl dimethoxy silane, N-(N-acetyl leucyl)-3-aminopropyl triethoxy silane, 3-(methacryloyloxy) propyl trimethoxy silane and diacetone acrylamide.

2. A friction-resistant anti-corrosion coating according to claim 1, Features: The friction-resistant anti-corrosion coating is mainly made of the following raw materials in parts by weight: 44-65 parts of aqueous acrylic emulsion, 25-35 parts of aqueous epoxy emulsion, 8-12 parts of aqueous fluorocarbon emulsion, 9.5-10.5 parts of modified silicon dioxide, 2.5-3.5 parts of adipic acid dihydrazide, 4.5-5.5 parts of oleic acid, 1.5-2.5 parts of wetting dispersant, 2.5-3.5 parts of film-forming aid, 1.5-2.5 parts of substrate wetting agent, 0.8-1.2 parts of anti-settling agent, 0.8-1.2 parts of defoaming agent and 58-62 parts of deionized water.

3. The friction-resistant anti-corrosion coating according to claim 1, Features: The modified silica is prepared by the following method: adding silica to water and mixing, then adding γ-piperazinepropylmethyldimethoxysilane, N-(N-acetylleucyl)-3-aminopropyltriethoxysilane, and 3-(methacryloyloxy)propyltrimethoxysilane, stirring for 1-3 hours, then adding diacetone acrylamide and mixing, then adding an initiator aqueous solution, stirring for 1-3 hours, filtering, washing, and drying to obtain the modified silica.

4. The friction-resistant anti-corrosion coating according to claim 3, Features: The weight ratio of the silicon dioxide, γ-piperazinepropylmethyldimethoxysilane, N-(N-acetylleucyl)-3-aminopropyltriethoxysilane, 3-(methacryloyloxy)propyltrimethoxysilane and diacetone acrylamide is 10:(2-4):(2-4):(0.5-1.5):(1-3).

5. The friction-resistant anti-corrosion coating according to claim 3, Features: The weight ratio of the silicon dioxide to the initiator aqueous solution is 10:(0.5-1.5).

6. The friction-resistant anti-corrosion coating according to claim 5, Features: The mass concentration of the initiator aqueous solution is 5-10%.

7. The friction-resistant anti-corrosion coating according to claim 5, Features: The initiator aqueous solution is one or more of an ammonium persulfate aqueous solution, a sodium persulfate aqueous solution, and a potassium persulfate aqueous solution.

8. The friction-resistant anti-corrosion coating according to claim 3, Features: The average particle size of the silicon dioxide is 1-5 μm.

9. The friction-resistant anti-corrosion coating according to claim 1, Features: The water-based acrylic emulsion is water-based acrylic emulsion Soluryl RV-4916; the water-based epoxy emulsion is water-based epoxy emulsion EP-E-2053PM; and the water-based fluorocarbon emulsion is water-based fluorocarbon emulsion CF-303.

10. A process for producing the friction-resistant and anti-corrosion coating according to any one of claims 1 to 9, Features: The method comprises the following steps: mixing water-based acrylic emulsion, water-based epoxy emulsion and water-based fluorocarbon emulsion, then adding deionized water, adipic acid dihydrazide, oleic acid, a wetting dispersant, a film-forming aid, a substrate wetting agent, an anti-settling agent and a defoaming agent, and then adding modified silicon dioxide to obtain a friction-resistant and anti-corrosion coating.

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