Self-polishing antifouling agent based on nano cerium oxide and preparation method thereof

Abstract

The invention discloses a self-polishing antifouling agent based on nano cerium oxide and a preparation method thereof. The self-polishing antifouling agent comprises the following components in parts by weight: 20-30 parts of acrylic resin, 10-20 parts of nano cerium oxide, 3-5 parts of a base material, 10-15 parts of a mixed solvent, 1-3 parts of an anti-settling agent, 3-5 parts of talcum powder and 2-4 parts of a plasticizer. The invention has the following beneficial effects: long-term antifouling and resistance-reducing effects are achieved, and the sailing efficiency and the service life of ships and ocean facilities can be significantly improved and prolonged; nano cerium oxide is used for replacing part of cuprous oxide, so that the use amount of harmful antifouling agent is reduced, and the environmental protection requirement is met; the preparation method is simple in process, easy to operate and suitable for industrial production; the prepared antifouling agent has excellent antifouling effect and environmental protection performance, and can significantly reduce the adhesion biomass of ships and marine facilities.

Description

Technical Field

[0001] The invention belongs to the technical field of self-polishing antifouling agents, and in particular relates to a self-polishing antifouling agent based on nano cerium oxide and a preparation method thereof. Background Art

[0002] There are many organisms in the ocean that will attach to the bottom of ships and underwater marine facilities. These attached organisms are extremely harmful to ships and underwater marine facilities, significantly increasing the hull mass, increasing navigation resistance, affecting the ship's speed, and thus increasing fuel consumption; it is reported that for every 10um increase in the roughness of the bottom surface of the ship, the fuel loss will increase by 1%, and the attached organisms will accelerate the corrosion of the ship and increase the number of on-site maintenance; attached organisms also have a serious impact on marine facilities such as offshore drilling platforms, seawater pipelines, and sonar hoods. Among the methods of preventing marine biofouling, the use of antifouling coatings is the most widely used and effective means.

[0003] Self-polishing antifouling agents usually exist as part of self-polishing antifouling paints. This type of paint is formulated with organic metal copolymers as the base material and has self-polishing properties during navigation. It is mainly used for antifouling of ship bottoms.

[0004] An environmentally friendly self-polishing antifouling coating with publication number CN101948654A discloses that the coating is composed of 34-50% hydrolyzed polyolefin resin, 25-30% cuprous oxide, 20-30% isophorone and 4-6% antifouling additive in terms of mass percentage.

[0005] Although traditional antifouling coatings have solved this problem to a certain extent, the harmful ingredients in them, such as cuprous oxide, have caused environmental pollution. Therefore, it is particularly important to develop an environmentally friendly and efficient antifouling agent. Summary of the invention

[0006] The purpose of the present invention is to provide a self-polishing antifouling agent based on nano-cerium oxide and a preparation method thereof, which reduces the usage of harmful antifouling agents while ensuring excellent antifouling effect, thereby meeting environmental protection requirements.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a self-polishing antifouling agent based on nano-cerium oxide, comprising acrylic resin, nano-cerium oxide, a base material, a mixed solvent, an anti-settling agent, talcum powder, and a plasticizer, wherein the weight ratio is: 20-30 parts of acrylic resin, 10-20 parts of nano-cerium oxide, 3-5 parts of the base material, 10-15 parts of the mixed solvent, 1-3 parts of the anti-settling agent, 3-5 parts of the talcum powder, and 2-4 parts of the plasticizer.

[0008] As a preferred technical solution of the present invention, the base material is rosin.

[0009] As a preferred technical solution of the present invention, the anti-settling agent is organic bentonite.

[0010] As a preferred technical solution of the present invention, the mixed solvent is ethanol, aromatic hydrocarbons and water.

[0011] As a preferred technical solution of the present invention, the plasticizer is one of phthalate and benzoate.

[0012] The present invention also discloses a method for preparing a self-polishing antifouling agent based on nano-cerium oxide, comprising the following steps:

[0013] Dissolve all the acrylic resin in the mixed solvent and stir to fully dissolve it;

[0014] Add nano cerium oxide, base material, anti-settling agent, talcum powder and plasticizer in sequence;

[0015] Stirring to fully mix the components;

[0016] High-speed dispersion is performed to make each component evenly dispersed in the solvent;

[0017] After grinding, high-speed dispersion is performed again to obtain a uniform antifouling agent.

[0018] As a preferred technical solution of the present invention, the rotation speed of the high-speed dispersion is 1000-3000r / min.

[0019] As a preferred technical solution of the present invention, the grinding speed is 150-200r / min, and the grinding time is 5-10min.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] It has long-term antifouling and drag reduction effects, and can significantly improve the navigation efficiency and service life of ships and marine facilities. By using nano-cerium oxide to replace part of cuprous oxide, the amount of harmful antifouling agents used is reduced, which meets environmental protection requirements.

[0022] The preparation method of the invention has simple process, is easy to operate and is suitable for industrial production; the prepared antifouling agent has excellent antifouling effect and environmental protection performance, and can significantly reduce the attached biomass of ships and marine facilities. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The present invention is a flow chart for preparing the self-polishing antifouling agent. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] Example 1

[0026] See also Figure 1 , which is the first embodiment of the present invention, provides a self-polishing antifouling agent based on nano cerium oxide, including acrylic resin, nano cerium oxide, base material, mixed solvent, anti-settling agent, talcum powder, and plasticizer, calculated by weight ratio: 20 parts of acrylic resin, 10 parts of nano cerium oxide, 3 parts of base material, 10 parts of mixed solvent, 1 part of anti-settling agent, 3 parts of talcum powder, and 2 parts of plasticizer; the base material is rosin; the anti-settling agent is organic bentonite; the mixed solvent is ethanol, aromatic hydrocarbons and water; the plasticizer is phthalate; nano cerium oxide has halogenated peroxide enzyme antifouling activity, can replace part of traditional cuprous oxide antifouling agents, and reduce their usage; the base material uses rosin, which can improve the comprehensive performance of the antifouling agent; talcum powder is used to improve the precipitation performance and make the product storage stable; the use of plasticizer further improves the comprehensive performance of the antifouling agent.

[0027] The antifouling agent of the invention has long-term antifouling and drag-reducing effects, and can significantly improve the navigation efficiency and service life of ships and marine facilities; by using nano-cerium oxide to replace part of cuprous oxide, the amount of harmful antifouling agents used is reduced, which meets environmental protection requirements.

[0028] A method for preparing a self-polishing antifouling agent based on nano-cerium oxide comprises the following steps:

[0029] Dissolve all the acrylic resin in the mixed solvent and stir to fully dissolve it;

[0030] Add nano cerium oxide, base material, anti-settling agent, talcum powder and plasticizer in sequence;

[0031] Stirring to fully mix the components;

[0032] Perform high-speed dispersion at a speed of 1000r / min to evenly disperse each component in the solvent;

[0033] After grinding, high-speed dispersion is performed again, the grinding speed is 150r / min, and the grinding time is 10min to obtain a uniform antifouling agent.

[0034] The preparation method of the invention has simple process, is easy to operate and is suitable for industrial production; the prepared antifouling agent has excellent antifouling effect and environmental protection performance, and can significantly reduce the attached biomass of ships and marine facilities.

[0035] Example 2

[0036] See also Figure 1 , which is the second embodiment of the present invention, provides a self-polishing antifouling agent based on nano cerium oxide, including acrylic resin, nano cerium oxide, base material, mixed solvent, anti-settling agent, talcum powder, and plasticizer, by weight ratio: 25 parts of acrylic resin, 15 parts of nano cerium oxide, 4 parts of base material, 13 parts of mixed solvent, 2 parts of anti-settling agent, 4 parts of talcum powder, and 3 parts of plasticizer; the base material is rosin; the anti-settling agent is organic bentonite; the mixed solvent is ethanol, aromatic hydrocarbons and water; the plasticizer is benzoate; nano cerium oxide has haloperoxide enzyme antifouling activity, can replace part of traditional cuprous oxide antifouling agents, and reduce their usage; the base material uses rosin, which can improve the comprehensive performance of the antifouling agent; talcum powder is used to improve the precipitation performance and make the product storage stable; the use of plasticizer further improves the comprehensive performance of the antifouling agent.

[0037] The antifouling agent of the invention has long-term antifouling and drag-reducing effects, and can significantly improve the navigation efficiency and service life of ships and marine facilities; by using nano-cerium oxide to replace part of cuprous oxide, the amount of harmful antifouling agents used is reduced, which meets environmental protection requirements.

[0038] A method for preparing a self-polishing antifouling agent based on nano-cerium oxide comprises the following steps:

[0039] Dissolve all the acrylic resin in the mixed solvent and stir to fully dissolve it;

[0040] Add nano cerium oxide, base material, anti-settling agent, talcum powder and plasticizer in sequence;

[0041] Stirring to fully mix the components;

[0042] Perform high-speed dispersion at a speed of 2000r / min to evenly disperse each component in the solvent;

[0043] After grinding, high-speed dispersion is performed again, the grinding speed is 175 r / min, and the grinding time is 8 min to obtain a uniform antifouling agent.

[0044] The preparation method of the invention has simple process, is easy to operate and is suitable for industrial production; the prepared antifouling agent has excellent antifouling effect and environmental protection performance, and can significantly reduce the attached biomass of ships and marine facilities.

[0045] Example 3

[0046] See also Figure 1 , which is the third embodiment of the present invention, provides a self-polishing antifouling agent based on nano cerium oxide, including acrylic resin, nano cerium oxide, base material, mixed solvent, anti-settling agent, talcum powder, and plasticizer, calculated by weight ratio: 30 parts of acrylic resin, 20 parts of nano cerium oxide, 5 parts of base material, 15 parts of mixed solvent, 3 parts of anti-settling agent, 5 parts of talcum powder, and 4 parts of plasticizer; the base material is rosin; the anti-settling agent is organic bentonite; the mixed solvent is ethanol, aromatic hydrocarbons and water; the plasticizer is phthalate; nano cerium oxide has halogenated peroxide enzyme antifouling activity, can replace part of traditional cuprous oxide antifouling agents, and reduce their usage; the base material uses rosin, which can improve the comprehensive performance of the antifouling agent; talcum powder is used to improve the precipitation performance and make the product storage stable; the use of plasticizer further improves the comprehensive performance of the antifouling agent.

[0047] The antifouling agent of the invention has long-term antifouling and drag-reducing effects, and can significantly improve the navigation efficiency and service life of ships and marine facilities; by using nano-cerium oxide to replace part of cuprous oxide, the amount of harmful antifouling agents used is reduced, which meets environmental protection requirements.

[0048] A method for preparing a self-polishing antifouling agent based on nano-cerium oxide comprises the following steps:

[0049] Dissolve all the acrylic resin in the mixed solvent and stir to fully dissolve it;

[0050] Add nano cerium oxide, base material, anti-settling agent, talcum powder and plasticizer in sequence;

[0051] Stirring to fully mix the components;

[0052] High-speed dispersion is performed at a speed of 3000r / min, so that each component is evenly dispersed in the solvent;

[0053] After grinding, high-speed dispersion is performed again, the grinding speed is 200r / min, and the grinding time is 5min to obtain a uniform antifouling agent.

[0054] The preparation method of the invention has simple process, is easy to operate and is suitable for industrial production; the prepared antifouling agent has excellent antifouling effect and environmental protection performance, and can significantly reduce the attached biomass of ships and marine facilities.

[0055] Experimental verification:

[0056]

[0057] Although the embodiments of the present invention have been shown and described, as detailed above, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-polishing antifouling agent based on nano-cerium oxide, characterized in that: It includes acrylic resin, nano cerium oxide, base material, mixed solvent, anti-settling agent, talcum powder and plasticizer, calculated by weight: 20-30 parts of acrylic resin, 10-20 parts of nano cerium oxide, 3-5 parts of base material, 10-15 parts of mixed solvent, 1-3 parts of anti-settling agent, 3-5 parts of talcum powder and 2-4 parts of plasticizer.

2. A self-polishing antifouling agent based on nano-cerium oxide according to claim 1, characterized in that: The base material is rosin.

3. A self-polishing antifouling agent based on nano-cerium oxide according to claim 1, characterized in that: The anti-settling agent is organic bentonite.

4. The self-polishing antifouling agent based on nano-cerium oxide according to claim 1, characterized in that: The mixed solvent is ethanol, aromatic hydrocarbon and water.

5. The self-polishing antifouling agent based on nano-cerium oxide according to claim 1, characterized in that: The plasticizer is one of phthalate and benzoate.

6. A method for preparing a self-polishing antifouling agent based on nano-cerium oxide according to any one of claims 1 to 5, characterized in that: The steps include: Dissolve all the acrylic resin in the mixed solvent and stir to fully dissolve it; Add nano cerium oxide, base material, anti-settling agent, talcum powder and plasticizer in sequence; Stirring to fully mix the components; High-speed dispersion is performed to make each component evenly dispersed in the solvent; After grinding, high-speed dispersion is performed again to obtain a uniform antifouling agent.

7. The method for preparing a self-polishing antifouling agent based on nano-cerium oxide according to claim 6, characterized in that: The rotation speed of the high-speed dispersion is 1000-3000r / min.

8. The method for preparing a self-polishing antifouling agent based on nano-cerium oxide according to claim 6, characterized in that: The grinding speed is 150-200 r / min, and the grinding time is 5-10 min.

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