Marine anti-aging alkyd coating

Abstract

The utility model relates to the related field of marine coatings, in particular to a marine anti-aging alkyd coating which comprises an alkyd coating, a graphene modified epoxy coating, a polyurethane finish paint layer, a fluorocarbon coating, an epoxy intermediate paint layer, a connecting bottom layer and the like. According to the utility model, the fluorocarbon coating and the polyurethane finish paint layer are arranged, and the fluorocarbon coating has excellent hydrophobic and oleophobic properties, so that the surface of the ship body can be effectively prevented from being polluted by adhesion of water, greasy dirt, marine organisms and the like, pollutants are difficult to adhere, the ship is easy to clean, the anti-pollution performance of the ship can be effectively improved, and the attractiveness of the ship can be improved; the arranged polyurethane finish paint layer further improves the ultraviolet resistance of the anti-aging alcohol acid coating, the aging speed of the anti-aging alcohol acid coating of the ship body can be effectively slowed down, the service life of the anti-aging alcohol acid coating is prolonged, the anti-aging alcohol acid coating can protect the ship for a longer time, and the service life of the anti-aging alcohol acid coating is prolonged. The practicability of the alcohol acid coating is improved.

Description

Technical Field

[0001] The utility model relates to the relevant field of marine coatings, in particular to an anti-aging alkyd coating for marine applications. Background Art

[0002] Ships are usually used to transport people, goods or carry out various water activities on rivers, lakes, oceans and other water bodies. Ships operate in the marine environment for a long time and will be corroded by seawater, salt spray, moisture and various corrosive substances. Therefore, anti-aging alkyd coatings are often applied on ships. Marine anti-aging alkyd coating is a special coating designed to provide long-term protection for ships in extreme marine environments. This type of coating uses alkyd resin as the main film-forming substance. By adding various additives, pigments and fillers and special formula design, it has excellent corrosion resistance to meet the stringent requirements of ships for anti-corrosion protection during long-term offshore operations. In general, marine anti-aging alkyd coating is a high-performance coating that integrates weather resistance, anti-corrosion and mechanical protection. It plays an important role in ensuring the integrity of the ship structure, extending the service life of the ship and reducing maintenance costs.

[0003] Existing alkyd coatings are usually applied directly on the hull, but their anti-fouling ability is poor, and pollutants are easily attached to the ship, which not only reduces the aesthetics of the ship, but also easily increases the cost of subsequent ship maintenance. In addition, the alkyd coating has poor UV resistance, making it difficult to provide more effective protection for the ship and slow down the aging rate of the hull coating. It is easy to reduce the service life of the alkyd coating, making it difficult for the alkyd coating to provide protection for the ship for a longer period of time, reducing the practicality of the alkyd coating. Summary of the invention

[0004] Therefore, in order to solve the above-mentioned shortcomings, the utility model provides a marine anti-aging alkyd coating to solve the above-mentioned technical problems.

[0005] In order to achieve the above-mentioned object, the utility model adopts the following technical scheme: an anti-aging alkyd coating for ships, comprising an alkyd coating, the top end surface of the alkyd coating being provided with a graphene-modified epoxy coating, a polyurethane topcoat layer and a fluorocarbon coating in sequence from bottom to top, and the bottom end surface of the alkyd coating being provided with a connecting bottom layer;

[0006] The alkyd coating and the graphene-modified epoxy coating, the graphene-modified epoxy coating and the polyurethane topcoat layer, and the polyurethane topcoat layer and the fluorocarbon coating are all connected via an epoxy intermediate paint layer.

[0007] Preferably, the connecting bottom layer is an epoxy primer layer, and the epoxy primer layer is connected to the bottom end surface of the alkyd coating.

[0008] Preferably, nano-silver particles are disposed in the epoxy primer layer.

[0009] Preferably, the thickness of the graphene-modified epoxy coating, the polyurethane topcoat layer and the fluorocarbon coating are all greater than the thickness of the epoxy intermediate paint layer.

[0010] Preferably, the thickness of the alkyd coating is 25 μm to 35 μm.

[0011] Preferably, the thickness of the polyurethane topcoat layer is 40 μm to 80 μm.

[0012] Beneficial effects of the utility model:

[0013] The utility model arranges a fluorocarbon coating and a polyurethane topcoat layer. The fluorocarbon coating has excellent hydrophobicity and oleophobicity, and can effectively prevent water, oil, marine organism attachment and the like from polluting the surface of the hull, making it difficult for pollutants to adhere and easy to clean, which can effectively improve the anti-fouling performance of the ship, is beneficial to improving the aesthetics of the ship, and also reduces the cost of subsequent penetration maintenance. The arranged polyurethane topcoat layer further improves the anti-ultraviolet performance of the anti-aging alkyd coating, can effectively slow down the aging speed of the anti-aging alkyd coating of the hull, prolong the service life of the anti-aging alkyd coating, is beneficial to the anti-aging alkyd coating to provide longer protection for the ship, and improves the practicality of the alkyd coating. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the connection bottom structure of the utility model.

[0016] Among them: alkyd coating-1, graphene-modified epoxy coating-2, polyurethane topcoat layer-3, fluorocarbon coating-4, epoxy intermediate paint layer-5, connecting bottom layer-6, epoxy primer layer-61, and nanosilver particles-62. DETAILED DESCRIPTION

[0017] In order to further explain the technical solution of the present utility model, it is described in detail through specific embodiments below.

[0018] like Figure 1 As shown, the utility model provides an anti-aging alkyd coating for ships, comprising an alkyd coating 1;

[0019] As shown in the figure, in this embodiment, the top surface of the alkyd coating 1 is provided with a graphene-modified epoxy coating 2, a polyurethane topcoat layer 3 and a fluorocarbon coating 4 in sequence from bottom to top, and the bottom surface of the alkyd coating 1 is provided with a connecting bottom layer 6, and the anti-aging alkyd coating is integrally coated on the ship through the connecting bottom layer 6;

[0020] The alkyd coating 1 and the graphene-modified epoxy coating 2, the graphene-modified epoxy coating 2 and the polyurethane topcoat layer 3, and the polyurethane topcoat layer 3 and the fluorocarbon coating 4 are all connected via an epoxy intermediate paint layer 5. The epoxy intermediate paint layer 5 improves the stability of the connection between the alkyd coating 1 and the graphene-modified epoxy coating 2, between the graphene-modified epoxy coating 2 and the polyurethane topcoat layer 3, and between the polyurethane topcoat layer 3 and the fluorocarbon coating 4.

[0021] Graphene-modified epoxy coating 2 provides conductive protection for ships, reducing safety hazards caused by static electricity;

[0022] The polyurethane topcoat layer 3 provides anti-ultraviolet protection for the anti-aging alkyd coating as a whole and the ship, which can effectively slow down the aging speed of the hull and the anti-aging alkyd coating, and is beneficial to prolonging the service life of the hull and the anti-aging alkyd coating;

[0023] Fluorocarbon coating 4 has excellent hydrophobicity and oleophobicity, which can effectively prevent water, oil, marine organisms from attaching to the surface of the hull, making it difficult for pollutants to adhere and easy to clean, and can significantly improve the anti-fouling performance of anti-aging alkyd coatings.

[0024] In this embodiment, the connecting bottom layer 6 is an epoxy primer layer 61, which is connected to the bottom end surface of the alkyd coating 1. The epoxy primer layer 61 is a layer directly in contact with the ship. The epoxy primer layer 61 has a stronger adhesion ability, which is conducive to driving the alkyd coating 1 to be stably attached to the ship, and is conducive to preventing the anti-aging alkyd coating from falling off the ship as a whole.

[0025] In this embodiment, nano silver particles 62 are provided in the epoxy primer layer 61. The addition of the nano silver particles 62 is beneficial to improving the construction properties of the epoxy primer layer 61, such as leveling, adhesion, and hardness, making the coating easier to apply and more wear-resistant and durable.

[0026] Among them, the thickness of the graphene-modified epoxy coating 2, the polyurethane topcoat layer 3 and the fluorocarbon coating 4 are all greater than the thickness of the epoxy intermediate paint layer 5. Reducing the thickness of the epoxy intermediate paint layer 5 is conducive to reducing the overall thickness of the coating, so as to reduce the cost of the coating used;

[0027] The thickness of the alkyd coating 1 is 30 μm, which can achieve a good anti-fouling effect;

[0028] The thickness of the polyurethane topcoat layer 3 is 40 μm to 80 μm, preferably 61 μm to 70 μm, which can achieve a good balance between anti-ultraviolet effect and cost-effectiveness.

[0029] The above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A marine anti-aging alkyd coating, comprising an alkyd coating; It is characterized in that The top end surface of the alkyd coating is provided with a graphene-modified epoxy coating, a polyurethane topcoat layer and a fluorocarbon coating in sequence from bottom to top, and the bottom end surface of the alkyd coating is provided with a connecting bottom layer; The alkyd coating and the graphene-modified epoxy coating, the graphene-modified epoxy coating and the polyurethane topcoat layer, and the polyurethane topcoat layer and the fluorocarbon coating are all connected via an epoxy intermediate paint layer.

2. The marine anti-aging alkyd coating according to claim 1, characterized in that: The connecting bottom layer is an epoxy primer layer, and the epoxy primer layer is connected to the bottom end surface of the alkyd coating.

3. The marine anti-aging alkyd coating according to claim 2, characterized in that: Nano silver particles are arranged in the epoxy primer layer.

4. The marine anti-aging alkyd coating according to claim 1, characterized in that: The thickness of the graphene-modified epoxy coating, the polyurethane topcoat layer and the fluorocarbon coating are all greater than the thickness of the epoxy intermediate paint layer.

5. The marine anti-aging alkyd coating according to claim 1, characterized in that: The thickness of the alkyd coating is 25 μm to 35 μm.

6. The marine anti-aging alkyd coating according to claim 1, characterized in that: The thickness of the polyurethane topcoat layer is 40 μm to 80 μm.

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