Polymer waterproof coating for PCB (printed circuit board)

Abstract

The utility model discloses a polymer waterproof coating for a PCB, which comprises an insulating layer, and a waterproof layer, an anti-corrosion layer, a mildew-proof layer, a thermal insulation layer, a sulfur-proof layer, an acid-base-resistant layer, an impact-resistant layer, an anti-oxidation layer, a salt mist-resistant layer, an anti-ultraviolet layer, a heat absorption layer and a hydrophobic layer are sequentially laid on the upper surface of the insulating layer; the insulating layer is made of insulating paint, the waterproof layer is made of polyurethane waterproof paint, the anti-corrosion layer is made of epoxy anti-corrosion paint, the mildew-proof layer is made of polyvinyl chloride, and the thermal insulation layer is made of barrier thermal insulation paint. Through the insulating layer, the waterproof layer, the anticorrosive layer, the mildew-proof layer, the thermal insulation layer, the sulfur-proof layer, the acid and alkali resistant layer, the impact resistant layer, the oxidation resistant layer, the salt mist resistant layer, the ultraviolet resistant layer, the heat absorption layer and the hydrophobic layer, the PCB is subjected to multi-layer protection, and the waterproof performance is better.

Description

Technical Field

[0001] The utility model relates to the technical field of waterproof coatings, in particular to a polymer waterproof coating for a PCB board. Background Art

[0002] At present, circuit boards are widely used in various electronic products. When electronic products and equipment are used in a humid environment, the biggest problem is that the internal components are damaged by moisture, especially the circuit boards with precise structures, which have poor resistance to water vapor. Once the electronic equipment is flooded or damp, it will cause irreparable losses. Either the whole device is scrapped or it needs to be disassembled for repair, which not only causes economic losses, but also makes the equipment unusable.

[0003] Existing PCB boards are waterproofed by using a single layer of waterproof coating, but this method can only be waterproof during use, and long-term use can easily cause the waterproof layer to be corroded or fall off, resulting in poor waterproof effect. Utility Model Content

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and to provide a polymer waterproof coating for a PCB board, which provides multi-layer protection for the PCB board through an insulating layer, a waterproof layer, an anti-corrosion layer, an anti-mildew layer, a thermal insulation layer, an anti-sulfur layer, an acid and alkali resistance layer, an impact resistance layer, an antioxidant layer, an anti-salt spray layer, an anti-ultraviolet layer, a heat absorption layer, and a hydrophobic layer, and has better waterproof performance.

[0005] The utility model also provides the polymer waterproof coating for PCB board, comprising: an insulating layer, wherein the upper surface of the insulating layer is sequentially paved with a waterproof layer, an anti-corrosion layer, an anti-mildew layer, a thermal insulation layer, an anti-sulfur layer, an acid and alkali resistant layer, an impact resistant layer, an anti-oxidation layer, an anti-salt spray layer, an anti-ultraviolet layer, a heat absorption layer, and a hydrophobic layer; the insulating layer is made of insulating paint, the waterproof layer is made of polyurethane waterproof coating, the anti-corrosion layer is made of epoxy anti-corrosion coating, the anti-mildew layer is made of polyvinyl chloride, and the thermal insulation layer is made of barrier heat insulation coating.

[0006] According to the polymer waterproof coating for PCB board described in the utility model, the material of the anti-sulfur layer is chlorosulfonated polyethylene coating.

[0007] According to the polymer waterproof coating for PCB board described in the utility model, the material of the acid and alkali resistant layer is acid and alkali anti-corrosion and wear-resistant coating.

[0008] According to the polymer waterproof coating for PCB board described in the utility model, the material of the impact-resistant layer is epoxy resin.

[0009] According to the polymer waterproof coating for PCB board described in the utility model, the material of the anti-oxidation layer is ZS-1021 graphite high temperature resistant anti-oxidation coating.

[0010] According to the polymer waterproof coating for PCB board described in the utility model, the material of the anti-salt spray layer is chlorinated rubber paint.

[0011] According to the polymer waterproof coating for PCB board described in the utility model, the material of the anti-ultraviolet layer is aliphatic acrylic polyurethane anti-corrosion coating.

[0012] According to the polymer waterproof coating for PCB board described in the utility model, the material of the heat absorption layer is electroplating coating.

[0013] According to the polymer waterproof coating for PCB board described in the utility model, the material of the hydrophobic layer is fatty acid metal soap polyolefin silicone resin fluorocarbon polymer.

[0014] Beneficial Effects

[0015] 1. Compared with the prior art, the polymer waterproof coating for PCB board provides multi-layer protection for PCB board through insulating layer, waterproof layer, anti-corrosion layer, anti-mildew layer, thermal insulation layer, anti-sulfur layer, acid and alkali resistance layer, impact resistance layer, antioxidant layer, salt spray resistance layer, UV resistance layer, heat absorption layer and hydrophobic layer, and has better waterproof performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0017] Figure 1 This is a left-side structural diagram of the polymer waterproof coating used for PCB boards of the utility model;

[0018] Figure 2 This is a right view of the structure of the polymer waterproof coating used for PCB board of the utility model;

[0019] Figure 3 The utility model is a cross-sectional structural diagram of a polymer waterproof coating used for a PCB board.

[0020] Legend:

[0021] 1. Insulation layer; 2. Waterproof layer; 3. Anti-corrosion layer; 4. Anti-mildew layer; 5. Thermal insulation layer; 6. Anti-sulfur layer; 7. Acid and alkali resistant layer; 8. Impact resistant layer; 9. Anti-oxidation layer; 10. Anti-salt spray layer; 11. Anti-ultraviolet layer; 12. Heat absorption layer; 13. Hydrophobic layer. DETAILED DESCRIPTION

[0022] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0023] Reference Figure 1-3 The utility model embodiment provides a polymer waterproof coating for a PCB board, which includes:

[0024] Preferably, the insulating layer 1 is made of insulating varnish and is in direct contact with the PCB board.

[0025] Preferably, the waterproof layer 2 is made of polyurethane waterproof coating.

[0026] Preferably, the anti-corrosion layer 3 is made of epoxy anti-corrosion coating.

[0027] Preferably, the anti-mildew layer 4 is made of polyvinyl chloride.

[0028] Preferably, the thermal insulation layer 5 is made of a barrier heat-insulating coating.

[0029] Preferably, the anti-sulfur layer 6 is made of chlorosulfonated polyethylene coating.

[0030] Preferably, the acid-base resistant layer 7 is made of acid-base anti-corrosion and wear-resistant coating.

[0031] Preferably, the impact-resistant layer 8 is made of epoxy resin.

[0032] Preferably, the anti-oxidation layer 9 is made of ZS-1021 graphite high temperature resistant anti-oxidation coating.

[0033] Preferably, the anti-salt spray layer 10 is made of chlorinated rubber paint.

[0034] Preferably, the anti-ultraviolet layer 11 is made of aliphatic acrylic polyurethane anti-corrosion coating.

[0035] Preferably, the heat absorption layer 12 is made of an electroplating coating.

[0036] Preferably, the hydrophobic layer 13 is made of fatty acid metal soap polyolefin silicone resin fluorocarbon polymer.

[0037] Working principle: Insulation layer, waterproof layer, anti-corrosion layer, anti-mildew layer, thermal insulation layer, anti-sulfur layer, acid and alkali resistance layer, impact resistance layer, anti-oxidation layer, anti-salt spray layer, anti-ultraviolet layer, heat absorption layer and hydrophobic layer are laid on the PCB board in sequence.

[0038] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A polymer waterproof coating for PCB board, characterized in that: include: An insulating layer (1), wherein the upper surface of the insulating layer (1) is sequentially provided with a waterproof layer (2), an anti-corrosion layer (3), an anti-mildew layer (4), a thermal insulation layer (5), an anti-sulfur layer (6), an acid-base resistance layer (7), an impact resistance layer (8), an anti-oxidation layer (9), an anti-salt spray layer (10), an anti-ultraviolet layer (11), a heat absorption layer (12), and a hydrophobic layer (13); The insulating layer (1) is made of insulating paint, the waterproof layer (2) is made of polyurethane waterproof coating, the anti-corrosion layer (3) is made of epoxy anti-corrosion coating, the anti-mildew layer (4) is made of polyvinyl chloride, and the thermal insulation layer (5) is made of barrier heat-insulating coating.

2. The polymer waterproof coating for PCB board according to claim 1, characterized in that: The material of the anti-sulfur layer (6) is chlorosulfonated polyethylene coating.

3. The polymer waterproof coating for PCB board according to claim 1, characterized in that: The material of the acid-base resistant layer (7) is acid-base anti-corrosion and wear-resistant coating.

4. The polymer waterproof coating for PCB board according to claim 1, characterized in that: The material of the impact-resistant layer (8) is epoxy resin.

5. The polymer waterproof coating for PCB board according to claim 1, characterized in that: The material of the anti-oxidation layer (9) is ZS-1021 graphite high temperature resistant anti-oxidation coating.

6. The polymer waterproof coating for PCB board according to claim 1, characterized in that: The material of the anti-salt spray layer (10) is chlorinated rubber paint.

7. The polymer waterproof coating for PCB board according to claim 1, characterized in that: The material of the anti-ultraviolet layer (11) is aliphatic acrylic polyurethane anti-corrosion coating.

8. The polymer waterproof coating for PCB board according to claim 1, characterized in that: The material of the heat absorption layer (12) is an electroplating coating.

9. The polymer waterproof coating for PCB board according to claim 1, characterized in that: The material of the hydrophobic layer (13) is fatty acid metal soap polyolefin silicone resin fluorocarbon polymer.

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