Marine organism coating system

Abstract

The present invention provides a marine organism coating system, and relates to the technical field of biological coatings, the marine organism coating system comprises an anti-rust epoxy primer, the anti-rust epoxy primer comprises the following components: 20% of epoxy resin, 15% of an anti-rust pigment, 15% of an auxiliary agent, 30% of a solvent, 20% of a curing agent, and a polysiloxane connection primer, the polysiloxane connecting primer is composed of the following components: 30% of polysiloxane resin, 10% of an anti-rust pigment, 15% of an auxiliary agent, 30% of a solvent, 10% of a curing agent and 5% of an antifouling agent. By optimizing the composition and the preparation process of the coating, the weather resistance, the salt fog resistance and the corrosion resistance of the coating are improved, so that the service life of the coating is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of biological coatings, and in particular to a marine biological coating system. Background Art

[0002] Ship bottom rust is a metal corrosion phenomenon caused by the hull being exposed to seawater and the atmosphere for a long time. The bottom of the ship is corroded by oxygen, salt and other corrosive substances in seawater, and is also affected by the electrolyte effect and the attachment of marine organisms. These factors accelerate the corrosion process of the metal. The oxygen in seawater is the key factor leading to metal oxidation, while salt accelerates the corrosion rate of the metal. In addition, seawater also contains other salts and microorganisms, which will also accelerate the corrosion process of the ship. The electrolyte effect forms tiny batteries between different metal parts on the hull, causing current to pass through the metal surface, thereby inducing corrosion. Marine organisms attached to the bottom of the ship will destroy the paint film and cause local electrochemical corrosion. At the same time, the metabolism of microorganisms will also secrete corrosive products, further accelerating corrosion.

[0003] Ships are extremely susceptible to corrosion from seawater when sailing in the ocean. Existing protective measures use self-polishing coatings, which have a limited lifespan and require ships to be docked frequently for maintenance, reducing the economic benefits of the ships. At the same time, a large number of marine organisms will adhere to the bottom of the ship, causing rust on the bottom of the ship, which has a serious impact on the normal operation of the ship and is not conducive to user use.

[0004] To this end, a marine biological coating system is provided to solve the problems in the above-mentioned background technology. Summary of the invention

[0005] The present invention provides a marine biological coating system to solve the problems raised by the above-mentioned background technology.

[0006] In order to solve the above technical problems, the technical solution of the present invention is as follows: An embodiment of the present invention provides a marine biological coating system, comprising: The rust-proof epoxy primer is composed of the following ingredients: 20% epoxy resin, 15% anti-rust pigment, 15% additive, 30% solvent, and 20% curing agent. The polysiloxane connecting primer is composed of the following components: 30% polysiloxane resin, 10% anti-rust pigment, 15% auxiliary agent, 30% solvent, 10% curing agent and 5% antifouling agent.

[0007] Through the above technical solution, the anti-corrosion coating can be accurately formulated according to the prescribed formula ratio, and the setting of the solvent makes the coating easy to apply, thereby improving the use efficiency of the coating.

[0008] Furthermore, the antifouling agent is composed of silicon-fluorine with low surface energy, and the antifouling agent is in powder form.

[0009] Through the above technical scheme, by setting the antifouling agent to low surface energy silicone-fluorine, the antibacterial and algae removal capabilities are strong: silicone-fluorine low surface energy has effective antibacterial and algae removal capabilities, can prevent barnacles, oysters and other marine organisms from attaching to the bottom of the ship or underwater marine facilities, thereby protecting the hull from biological fouling, and has good anti-biological attachment effect: by preventing the attachment of marine organisms, silicone-fluorine low surface energy can extend the service life of the antifouling paint on the bottom of the ship and reduce the maintenance cost of the ship.

[0010] Furthermore, the auxiliary agent comprises a dispersant, a defoamer and an anti-settling agent, and the dispersant, the defoamer and the anti-settling agent have the same composition ratio.

[0011] Through the above technical solution, since the proportions of dispersants, defoamers and anti-settling agents are the same, it can be ensured that the additives show balanced performance in the application, each additive can fully play its role, and will not cause excessive or insufficient functions due to imbalance in the ratio, thereby improving stability: a balanced ratio helps to improve the stability of the entire additive system, the dispersant can effectively prevent particle agglomeration, the defoamer can quickly eliminate bubbles, and the anti-settling agent can prevent sedimentation. The three work synergistically, so that the additives maintain stable performance during storage and use.

[0012] Furthermore, the anti-rust pigment is composed of red iron oxide.

[0013] Through the above technical scheme, the hiding power is strong: red iron oxide provides good hiding power for coatings, etc., and can cover the defects or bad colors of the underlying layer. It has good dispersibility: red iron oxide is evenly dispersed in coatings and other systems, and is not easy to agglomerate, which is conducive to obtaining a uniform coating and enhancing the mechanical strength of the coating: the addition of red iron oxide can increase the mechanical strength of the coating to a certain extent, improve the wear resistance and scratch resistance of the coating, etc. At the same time, the chemical properties of red iron oxide are stable, which improves the stability of the coating.

[0014] Furthermore, the dispersant is a stearic acid amide dispersant, the defoamer is a conventional aqueous defoamer, and the anti-settling agent is composed of fumed silica.

[0015] Through the above technical solution, stearic acid amide dispersants can effectively reduce the surface tension between pigment or filler particles, promote their uniform distribution in the carrier, avoid agglomeration and sedimentation, and thus improve the color uniformity and stability of the product.

[0016] Furthermore, the particle size of the silicon-fluorine low surface energy is between 100 and 200 um.

[0017] Through the above technical solution, the stability of coating use is improved.

[0018] Furthermore, the curing agent is an organic curing agent material which is amide amine.

[0019] Through the above technical solution, by setting the curing agent material to amide amine, amide amine has an excellent curing speed, which helps to shorten the production cycle and improve production efficiency. At the same time, rapid curing also helps to reduce the emission of volatiles during the curing process of the coating, which is beneficial to environmental protection. Good compatibility: amide amine curing agent can form good compatibility with a variety of resins and coatings, including epoxy resins, polyester resins, etc. This compatibility ensures that the curing agent can be evenly dispersed in the resin system, thereby achieving a better curing effect. Furthermore, the curing agent is added in three times, with a quantitative amount added each time.

[0020] Through the above technical solution, the mixing effect of the curing agent is effectively improved by adding it multiple times, thereby improving the rapid solidification effect of the coating, which is convenient for users to use.

[0021] Furthermore, the silicon-fluorine low surface energy antifouling agent is evenly sprayed on the surface of the mixture.

[0022] Through the above technical solution, the antifouling agent is evenly sprayed on the surface of the mixture, which effectively improves the mixing effect and the antifouling effect of the coating.

[0023] Furthermore, the preparation method of the rust-proof epoxy primer is as follows: the configured epoxy resin, rust-proof pigment, dispersant, defoamer and anti-settling agent are mixed evenly to form a pigment slurry, a solvent is added to the pigment slurry, and stirred evenly to form a primer solution, and finally a curing agent is added, and stirred sufficiently to ensure that each component is evenly dispersed, and finally ground and dispersed to achieve the required fineness and uniformity.

[0024] The preparation method of the polysiloxane connecting primer comprises the following steps: uniformly mixing the prepared polysiloxane resin, anti-rust pigment, dispersant, defoamer and anti-settling agent to form a pigment slurry, adding a solvent to the pigment slurry, stirring uniformly to form a primer solution, adding a powdered silicone-fluorine low surface energy antifouling agent to ensure that the powdered silicone-fluorine low surface energy antifouling agent is uniformly dispersed in the primer solution, finally adding a curing agent, stirring sufficiently to ensure that each component is uniformly dispersed, and finally grinding and dispersing to achieve the required fineness and uniformity.

[0025] The above solution of the present invention includes at least the following beneficial effects: 1. The present invention adopts a high proportion of epoxy resin and anti-rust pigment in the anti-rust epoxy primer. These ingredients can effectively isolate moisture and oxygen, thereby preventing the metal substrate under the marine organism coating from rusting. The polysiloxane connecting primer also contains anti-rust pigments, which further enhances the anti-rust performance of the entire coating system and has strong anti-fouling ability: powdered silicon-fluorine low surface energy is added to the polysiloxane connecting primer as an anti-fouling agent, and its particle size is between 100 and 200 um, which can effectively prevent marine organisms from adhering to and growing on the coating surface. Silicon-fluorine low surface energy is a widely used anti-fouling agent with significant hydrophilic effect, and is evenly dispersed in powder form in this coating system, ensuring the durability of the anti-fouling effect, good coating stability and adhesion: the additives in the coating system are combined in the same proportion, which effectively improves the dispersibility, stability and workability of the coating. The dispersant helps to evenly disperse the pigment particles, the defoaming agent can eliminate bubbles in the coating, and the anti-settling agent can prevent the pigment from occurring during storage. Sedimentation, the use of these additives ensures the stability and uniformity of the coating during preparation and construction, thereby improving the adhesion of the coating to the metal substrate, environmental protection and sustainability: the low surface energy of silicon and fluorine has a significant antifouling effect, reducing the need for frequent replacement or cleaning of the coating, thereby reducing pollution to the environment to a certain extent, the preparation and construction process of the coating system follows the principle of environmental protection, reducing the emission and waste of harmful substances, and improving the service life of the coating: by optimizing the composition and preparation process of the coating, the weather resistance, salt spray resistance and corrosion resistance of the coating are improved, thereby extending the service life of the coating, the special molecular structure of the polysiloxane resin gives it an extremely low energy surface, this low surface energy property can effectively repel moisture and mucus secreted by marine organisms, making it difficult for marine organisms to find a stable attachment point on the coating surface, at the same time, silicon and fluorine low surface energy as an antifouling agent plays a vital role in the coating, forming a thin antibacterial layer on the outside of the coating, further preventing the growth and reproduction of marine organisms. In addition, the powdery form of silicon and fluorine low surface energy helps its uniform distribution in the coating, improving the consistency and durability of the antifouling effect. DETAILED DESCRIPTION

[0026] The exemplary embodiments of the present invention will be described in more detail below. It should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present invention and to enable the scope of the present invention to be fully communicated to those skilled in the art.

[0027] A marine biological coating system, comprising: The rust-proof epoxy primer is composed of the following ingredients: 20% epoxy resin, 15% anti-rust pigment, 15% additive, 30% solvent, and 20% curing agent. The polysiloxane connecting primer is composed of the following components: 30% polysiloxane resin, 10% anti-rust pigment, 15% auxiliary agent, 30% solvent, 10% curing agent and 5% antifouling agent.

[0028] The antifouling agent comprises a low-surface-energy silicone-fluorine agent, which is in powder form; the auxiliary agent comprises a dispersant, a defoamer and an anti-settling agent, which have the same composition ratio; the anti-rust pigment comprises red iron oxide; the dispersant is a stearic acid amide dispersant; the defoamer is a conventional water-based defoamer; the anti-settling agent comprises meteorological silica; the particle size of the low-surface-energy silicone-fluorine agent is between 100 and 200 um; the curing agent is an organic curing agent, and the curing agent material is amide-amine; the curing agent is added three times, and each time a quantitative amount is added; and the silicone-fluorine low-surface-energy antifouling agent is evenly sprayed on the surface of the mixture.

[0029] By keeping the ratio of dispersant, defoamer and anti-settling agent the same, it can be ensured that the additives show balanced performance in the application. Each additive can fully play its role, and no excessive or insufficient function will be caused by an imbalance in the ratio. Improved stability: A balanced ratio helps to improve the stability of the entire additive system. Dispersants can effectively prevent particle agglomeration, defoamers can quickly eliminate bubbles, and anti-settling agents can prevent sedimentation. The synergistic effect of the three allows the additives to maintain stable performance during storage and use. Red iron oxide provides good hiding power for coatings and can cover defects or poor colors in the underlying layer. Good dispersibility: Red iron oxide is evenly dispersed in coatings and other systems and is not easy to agglomerate, which is conducive to obtaining a uniform coating. Enhanced coating mechanical strength: The addition of red iron oxide can increase the mechanical strength of the coating to a certain extent, improve the wear resistance and scratch resistance of the coating, etc. At the same time, the chemical properties of red iron oxide are stable, which improves the stability of the coating. Stearic acid amide dispersants can effectively reduce the surface tension between pigment or filler particles, promote their uniform distribution in the carrier, avoid agglomeration and sedimentation, thereby improving the color uniformity and stability of the product.

[0030] Preparation method of anti-rust epoxy primer: mix the configured epoxy resin, anti-rust pigment, dispersant, defoamer and anti-settling agent evenly to form a pigment slurry, add solvent to the pigment slurry, stir evenly to form a primer solution, finally add curing agent, stir well to ensure that each component is evenly dispersed, and finally grind and disperse to achieve the required fineness and uniformity.

[0031] The preparation method of the polysiloxane connecting primer comprises the following steps: uniformly mixing the prepared polysiloxane resin, anti-rust pigment, dispersant, defoamer and anti-settling agent to form a pigment slurry, adding a solvent to the pigment slurry, stirring uniformly to form a primer solution, adding a powdered silicone-fluorine low surface energy antifouling agent to ensure that the powdered silicone-fluorine low surface energy antifouling agent is uniformly dispersed in the primer solution, finally adding a curing agent, stirring sufficiently to ensure that each component is uniformly dispersed, and finally grinding and dispersing to achieve the required fineness and uniformity.

[0032] In summary: the biological coating has excellent anti-rust properties: the anti-rust epoxy primer uses a high proportion of epoxy resin and anti-rust pigment, which can effectively isolate moisture and oxygen, thereby preventing the metal substrate under the marine biological coating from rusting.

[0033] The polysiloxane link primer also contains anti-rust pigments, which further enhance the anti-rust properties of the entire coating system.

[0034] Powerful antifouling ability: Powdered silicone-fluorine low surface energy is added to the polysiloxane linking primer as an antifouling agent. Its particle size is between 100~200um, which can effectively prevent marine organisms from attaching and growing on the coating surface.

[0035] As a widely used antifouling agent, low-surface-energy silicone-fluorine has a significant hydrophilic effect and is evenly dispersed in powder form in this coating system, ensuring the durability of the antifouling effect.

[0036] Good coating stability and adhesion: The additives in the coating system are combined in the same proportion, which effectively improves the dispersion, stability and workability of the coating.

[0037] Dispersants help to evenly disperse pigment particles, defoamers can eliminate bubbles in the paint, and anti-settling agents can prevent pigments from settling during storage.

[0038] The use of these additives ensures the stability and uniformity of the coating during preparation and construction, thereby improving the adhesion of the coating to the metal substrate.

[0039] Environmental protection and sustainability: Silicone-fluorine low surface energy has a significant anti-fouling effect, reducing the need for frequent replacement or cleaning of coatings, thereby reducing pollution to the environment to a certain extent.

[0040] The preparation and construction process of the coating system follows environmental protection principles and reduces the emission and waste of harmful substances.

[0041] Improving the service life of the coating: By optimizing the composition and preparation process of the coating, the weather resistance, salt spray resistance and corrosion resistance of the coating are improved, thereby extending the service life of the coating, which not only reduces maintenance costs but also improves the safety and reliability of marine biological facilities.

[0042] The special molecular structure of polysiloxane resin gives its surface extremely low energy. This low surface energy property can effectively repel moisture and mucus secreted by marine organisms, making it difficult for marine organisms to find stable attachment points on the coating surface. At the same time, the low surface energy of silicon-fluorine plays a vital role as an antifouling agent in the coating, forming a thin antibacterial layer on the outside of the coating, further preventing the growth and reproduction of marine organisms. In addition, the powdery form of silicon-fluorine low surface energy helps its uniform distribution in the coating, improving the consistency and durability of the antifouling effect. The anti-rust epoxy primer, as the first layer of the coating system, plays a vital basic protective role. The epoxy resin in its composition provides excellent adhesion and corrosion resistance, and can fit tightly to the surface of the metal substrate, forming a The addition of red iron oxide further enhances the anti-rust performance of the primer, effectively preventing the metal substrate from rusting due to seawater erosion, thereby reducing the attachment of marine organisms caused by rust. At the same time, the additives in the primer (dispersant, defoamer, anti-settling agent) play a key role in the preparation process. The dispersant ensures the uniform dispersion of the pigment and resin and avoids the occurrence of agglomeration; the defoamer eliminates bubbles in the coating and ensures the flatness and smoothness of the coating; the anti-settling agent prevents the sedimentation of the pigment and filler and ensures the stability and use effect of the coating. The synergistic effect of these additives makes the anti-rust epoxy primer have excellent construction performance and protective performance. The polysiloxane-linked primer, as the second layer of the coating system, has particularly outstanding anti-fouling properties. As its main component, polysiloxane resin has extremely low surface energy and excellent hydrophobicity, which makes the coating surface not easily wetted and attached by the mucus secreted by marine organisms. In addition, polysiloxane resin also has good elasticity and weather resistance, and can adapt to the temperature changes and mechanical stress of the seawater environment, thereby maintaining the stability and durability of the coating. The particle size of the low surface energy of silicon and fluorine is between 100 and 200um. This size range enables it to be evenly distributed in the coating and maintain a good release effect. At the same time, the powdered silicon and fluorine low surface energy is also easier to mix evenly with the coating, avoiding the occurrence of agglomeration and sedimentation. In addition to the individual effects of the above two layers of coating, this marine biological coating system also further improves its antifouling performance through the synergistic effect of the comprehensive antifouling mechanism. The excellent adhesion and corrosion resistance of the antirust epoxy primer provide a solid foundation for the polysiloxane link primer; and the low surface energy, hydrophobicity and antifouling agent of the polysiloxane link primer together constitute a powerful antifouling barrier.

[0043] In addition, the preparation process of the coating system also has an important influence on its anti-fouling performance. During the preparation process, the uniformity and stability of the coating are ensured by precisely controlling the proportion and mixing method of each component, so that the coating can fit tightly to the surface of the metal substrate to form a continuous, defect-free protective layer.

[0044] In summary, this marine biological coating system effectively prevents the adsorption and growth of marine organisms through the basic protection of anti-rust epoxy primer, the anti-fouling properties of polysiloxane-linked primer, and the synergistic effect of the comprehensive anti-fouling mechanism. This coating system not only has excellent protective performance and durability, but also can adapt to various complex seawater environments, providing comprehensive and reliable protection for marine engineering structures.

[0045] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A marine biological coating system, characterized in that: include: The rust-proof epoxy primer is composed of the following ingredients: 20% epoxy resin, 15% anti-rust pigment, 15% additive, 30% solvent, and 20% curing agent. The polysiloxane connecting primer is composed of the following components: 30% polysiloxane resin, 10% anti-rust pigment, 15% auxiliary agent, 30% solvent, 10% curing agent and 5% antifouling agent.

2. A marine biological coating system according to claim 1, characterized in that: The antifouling agent comprises silicon-fluorine with low surface energy, and the antifouling agent is in powder form.

3. A marine biological coating system according to claim 1, characterized in that: The components of the auxiliary agent are dispersant, defoamer and anti-settling agent, and the dispersant, defoamer and anti-settling agent have the same composition ratio.

4. A marine biological coating system according to claim 1, characterized in that: The component of the anti-rust pigment is red iron oxide.

5. A marine biological coating system according to claim 3, characterized in that: The dispersant is a stearic acid amide dispersant, the defoamer is a conventional water-based defoamer, and the anti-settling agent is composed of fumed silica.

6. A marine biological coating system according to claim 2, characterized in that: The particle size of the silicon-fluorine low surface energy is between 100 and 200 um.

7. A marine biological coating system according to claim 1, characterized in that: The curing agent is an organic curing agent material which is an amide amine.

8. A marine biological coating system according to claim 1, characterized in that: The curing agent is added in three times, each time with a quantitative amount.

9. A marine biological coating system according to claim 1, characterized in that: The silicon-fluorine low surface energy antifouling agent is evenly sprayed on the surface of the mixture.

10. A marine biological coating system according to claim 1, characterized in that: The preparation method of the anti-rust epoxy primer comprises: mixing the prepared epoxy resin, anti-rust pigment, dispersant, defoamer and anti-settling agent evenly to form a pigment slurry, adding a solvent to the pigment slurry, stirring evenly to form a primer solution, finally adding a curing agent, stirring sufficiently to ensure that each component is evenly dispersed, and finally grinding and dispersing to achieve the required fineness and uniformity; The preparation method of the polysiloxane connecting primer comprises the following steps: uniformly mixing the prepared polysiloxane resin, anti-rust pigment, dispersant, defoamer and anti-settling agent to form a pigment slurry, adding a solvent to the pigment slurry, stirring uniformly to form a primer solution, adding a powdered silicone-fluorine low surface energy antifouling agent to ensure that the powdered silicone-fluorine low surface energy antifouling agent is uniformly dispersed in the primer solution, finally adding a curing agent, stirring sufficiently to ensure that each component is uniformly dispersed, and finally grinding and dispersing to achieve the required fineness and uniformity.

Images