Preparation method of anti-oxidation printed circuit board

Abstract

The invention discloses a preparation method of an anti-oxidation printed circuit board. The preparation method comprises the following steps: cleaning the surface of the printed circuit board; spraying an antioxidant solution on the surface of the cleaned printed circuit board, and carrying out first drying treatment; and spraying conductive paint on the surface of the dried printed circuit board, and carrying out second drying treatment. By adopting the technical scheme, the oxidation resistance of the printed circuit board can be greatly improved, so that the working stability of a device is improved, the service life of the device is prolonged, and the maintenance cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of printed circuit board manufacturing, and particularly relates to a preparation method of an antioxidant printed circuit board. Background Art

[0002] With the rapid development of electronic information technology, printed circuit boards have been widely used. However, during the use of printed circuit boards, they are extremely vulnerable to oxidation, which will cause the devices containing the printed circuit boards to work unstably or even fail, resulting in an increase in maintenance costs. Therefore, how to improve the antioxidant performance of printed circuit boards has become the focus of research. Summary of the Invention

[0003] The purpose of the embodiments of the present invention is to provide a preparation method of an antioxidant printed circuit board, which can greatly improve the antioxidant performance of the printed circuit board, thereby improving the working stability of the device, extending the service life of the device, and reducing the maintenance cost.

[0004] To achieve the above purpose, the embodiments of the present invention provide a preparation method of an antioxidant printed circuit board, including:

[0005] Clean the surface of the printed circuit board;

[0006] Spray an antioxidant solution on the surface of the cleaned printed circuit board, and perform a first drying treatment;

[0007] Spray conductive paint on the surface of the dried printed circuit board, and perform a second drying treatment.

[0008] Further, the antioxidant solution is a mixture of methanol, isopropanol, diethylene glycol, phenol, and a functional material.

[0009] Further, the antioxidant solution is prepared in advance through the following steps:

[0010] Add 50 g of diethylene glycol and 25 g of phenol to 1 L of a mixed solution of methanol and isopropanol, and stir to obtain a first mixture;

[0011] Add 20 g of the functional material to the first mixture, and stir to obtain a second mixture;

[0012] Filter the second mixture to obtain the antioxidant solution.

[0013] Further, the functional material is soy protein or gelatin.

[0014] Further, the temperature of the first drying treatment is 50°C to 70°C, and the drying time is 1 to 2 h.

[0015] Further, the material of the conductive paint is conductive silver paste or conductive copper paste.

[0016] Compared with the prior art, the embodiment of the present invention provides a method for preparing an antioxidant printed circuit board. First, the surface of the printed circuit board is cleaned; then, an antioxidant solution is sprayed on the surface of the cleaned printed circuit board, and the first drying treatment is carried out; finally, a conductive paint is sprayed on the surface of the dried printed circuit board, and the second drying treatment is carried out. By adopting functional materials, the embodiment of the present invention improves the performance of the antioxidant, and at the same time uses the conductive paint to fix the antioxidant on the surface of the printed circuit board, so that it has a lasting antioxidant performance, thereby greatly improving the antioxidant performance of the printed circuit board, further improving the working stability of the device, prolonging the service life of the device, and reducing the maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a flowchart of a preferred embodiment of a method for preparing an antioxidant printed circuit board provided by the present invention. DETAILED DESCRIPTION

[0018] Hereinafter, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the present invention.

[0019] The embodiment of the present invention provides a method for preparing an antioxidant printed circuit board. Refer to Figure 1 As shown, it is a flowchart of a preferred embodiment of a method for preparing an antioxidant printed circuit board provided by the present invention. The method includes steps S11 to S13:

[0020] Step S11: Clean the surface of the printed circuit board;

[0021] Step S12: Spray an antioxidant solution on the surface of the cleaned printed circuit board, and perform the first drying treatment;

[0022] Step S13: Spray a conductive paint on the surface of the dried printed circuit board, and perform the second drying treatment.

[0023] In specific implementation, first, the surface of the printed circuit board to be processed is cleaned to remove oil stains and impurities on the surface of the printed circuit board; then, a pre-prepared antioxidant solution is sprayed on the surface of the cleaned printed circuit board, and the antioxidant solution on the surface of the printed circuit board is subjected to the first drying treatment; finally, a layer of conductive paint is sprayed on the surface of the printed circuit board after the first drying treatment, and the conductive paint on the surface of the printed circuit board is subjected to the second drying treatment; after the above treatments, a printed circuit board with antioxidant performance can be obtained.

[0024] In one alternative embodiment, the antioxidant solution is a mixture of methanol, isopropyl alcohol, diethylene glycol, phenol, and a functional material.

[0025] Specifically, in combination with the above embodiment, the antioxidant solution sprayed on the surface of the printed circuit board is mainly a mixture of methanol, isopropyl alcohol, diethylene glycol, and phenol, and a small amount of functional material is added to the mixture.

[0026] In one alternative embodiment, the antioxidant solution is pre-prepared through the following steps:

[0027] 50 g of diethylene glycol and 25 g of phenol are respectively added to 1 L of a mixed solution of methanol and isopropyl alcohol, and stirred to obtain a first mixture;

[0028] 20 g of functional material is added to the first mixture and stirred to obtain a second mixture;

[0029] The second mixture is filtered to obtain the antioxidant solution.

[0030] Specifically, in combination with the above embodiment, the antioxidant solution that needs to be sprayed on the surface of the printed circuit board is pre-prepared in the embodiments of the present invention. The specific preparation process is as follows: First, 50 g of diethylene glycol and 25 g of phenol are respectively added to 1 L of a mixed solution of methanol and isopropyl alcohol and stirred evenly to obtain a first mixture; then, 20 g of functional material is added to the obtained first mixture and stirred to obtain a second mixture (equivalent to the antioxidant mixture); finally, the obtained second mixture is filtered through a filter screen to obtain the antioxidant solution.

[0031] In one alternative embodiment, the functional material is soy protein or gelatin.

[0032] Specifically, in combination with the above embodiment, the functional material added to the obtained first mixture can be soy protein or gelatin, or other types of applicable functional materials. The embodiments of the present invention do not make specific limitations.

[0033] In one optional embodiment, the temperature of the first drying treatment is 50°C to 70°C, and the drying time is 1 to 2 hours.

[0034] Specifically, in combination with the above embodiments, after the antioxidant solution is sprayed on the surface of the printed circuit board, it is necessary to further perform a first drying treatment on the antioxidant solution on the surface of the printed circuit board. The drying treatment needs to control the temperature at 50°C to 70°C and the drying time at 1 hour to 2 hours.

[0035] Exemplarily, the value of the temperature of the first drying treatment can be 50°C, 51°C, 52°C, 53°C, 54°C, 55°C, 56°C, 57°C, 58°C, 59°C, 60°C, 61°C, 62°C, 63°C, 64°C, 65°C, 66°C, 67°C, 68°C, 69°C or 70°C, or it can also be set according to actual needs, and the embodiments of the present invention do not make specific limitations.

[0036] Exemplarily, the value of the drying time of the first drying treatment can be 1 hour, 1 hour and 5 minutes, 1 hour and 10 minutes, 1 hour and 15 minutes, 1 hour and 20 minutes, 1 hour and 25 minutes, 1 hour and 30 minutes, 1 hour and 35 minutes, 1 hour and 40 minutes, 1 hour and 45 minutes, 1 hour and 50 minutes, 1 hour and 55 minutes or 2 hours, or it can also be set according to actual needs, and the embodiments of the present invention do not make specific limitations.

[0037] In one optional embodiment, the material of the conductive paint is conductive silver paste or conductive copper paste.

[0038] Specifically, in combination with the above embodiments, the material used for the conductive paint sprayed on the surface of the printed circuit board can be selected as conductive silver paste or conductive copper paste, or it can also be other types of applicable materials, and the embodiments of the present invention do not make specific limitations.

[0039] Combining all the above embodiments, the implementation process of this solution is described below through the first specific embodiment, including: (1) Prepare the antioxidant solution: First, add 50 g of diethylene glycol and 25 g of phenol to a 1 L mixed solution of methanol and isopropanol respectively, stir evenly, then add 20 g of functional materials such as soy protein or gelatin, and stir. Filter the obtained antioxidant mixture through a filter screen to obtain the antioxidant solution; (2) Clean the surface of the printed circuit board to be treated to remove oil stains and impurities on the surface of the printed circuit board; (3) Spray a layer of the pre-prepared antioxidant solution on the surface of the printed circuit board after cleaning, and perform the first drying treatment on the antioxidant solution on the surface of the printed circuit board. The drying temperature is controlled at 50 °C, and the drying time is controlled at 1 hour; (4) Spray a layer of conductive paint on the surface of the printed circuit board after the first drying treatment, and perform the second drying treatment on the conductive paint on the surface of the printed circuit board; wherein, the material used for the conductive paint is conductive silver paste or conductive copper paste; After the above treatment, a printed circuit board with antioxidant performance can be obtained.

[0040] Combining all the above embodiments, the implementation process of this solution is described below through the second specific embodiment, including: (1) Prepare the antioxidant solution: First, add 50 g of diethylene glycol and 25 g of phenol to a 1 L mixed solution of methanol and isopropanol respectively, stir evenly, then add 20 g of functional materials such as soy protein or gelatin, and stir. Filter the obtained antioxidant mixture through a filter screen to obtain the antioxidant solution; (2) Clean the surface of the printed circuit board to be treated to remove oil stains and impurities on the surface of the printed circuit board; (3) Spray a layer of the pre-prepared antioxidant solution on the surface of the printed circuit board after cleaning, and perform the first drying treatment on the antioxidant solution on the surface of the printed circuit board. The drying temperature is controlled at 60 °C, and the drying time is controlled at 1 hour and 30 minutes; (4) Spray a layer of conductive paint on the surface of the printed circuit board after the first drying treatment, and perform the second drying treatment on the conductive paint on the surface of the printed circuit board; wherein, the material used for the conductive paint is conductive silver paste or conductive copper paste; After the above treatment, a printed circuit board with antioxidant performance can be obtained.

[0041] Combining all the above embodiments, the implementation process of this solution is described below through a third specific embodiment, including: (1) Prepare an antioxidant solution: First, add 50 g of diethylene glycol and 25 g of phenol to a 1 L mixed solution of methanol and isopropyl alcohol, stir evenly, then add 20 g of functional materials such as soy protein or gelatin, and stir. Filter the obtained antioxidant mixture through a filter screen to obtain an antioxidant solution; (2) Clean the surface of the printed circuit board to be treated to remove oil stains and impurities on the surface of the printed circuit board; (3) Spray a layer of the pre-prepared antioxidant solution on the surface of the cleaned printed circuit board, and perform the first drying treatment on the antioxidant solution on the surface of the printed circuit board. The drying temperature is controlled at 70 °C and the drying time is controlled at 2 hours; (4) Spray a layer of conductive paint on the surface of the printed circuit board after the first drying treatment, and perform the second drying treatment on the conductive paint on the surface of the printed circuit board; wherein, the material used for the conductive paint is conductive silver paste or conductive copper paste; After the above treatment, a printed circuit board with antioxidant performance can be obtained.

[0042] In summary, for a method for preparing an antioxidant printed circuit board provided by an embodiment of the present invention, first, clean the surface of the printed circuit board; then, spray an antioxidant solution on the surface of the cleaned printed circuit board and perform the first drying treatment; finally, spray a conductive paint on the surface of the dried printed circuit board and perform the second drying treatment. By using functional materials, the embodiment of the present invention improves the performance of the antioxidant, and at the same time uses a conductive paint to fix the antioxidant on the surface of the printed circuit board, so that it has a lasting antioxidant performance, thereby greatly improving the antioxidant performance of the printed circuit board, further improving the working stability of the device, extending the service life of the device, and reducing the maintenance cost. In addition, the operation of the embodiment of the present invention is simple, the antioxidant effect is remarkable, and it has a wide application prospect.

[0043] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and deformations can be made, and these improvements and deformations should also be regarded as the protection scope of the present invention.

Claims

1. A preparation method of an antioxidant printed circuit board, characterized in that, Including: Clean the surface of the printed circuit board; Spray an antioxidant solution on the surface of the cleaned printed circuit board and perform the first drying treatment; Spray conductive paint on the surface of the dried printed circuit board and perform the second drying treatment.

2. The preparation method of the antioxidant printed circuit board according to claim 1, characterized in that, The antioxidant solution is a mixture of methanol, isopropanol, diethylene glycol, phenol and a functional material.

3. The preparation method of the antioxidant printed circuit board according to claim 2, wherein, The antioxidant solution is pre-prepared through the following steps: Add 50 g of diethylene glycol and 25 g of phenol to 1 L of a mixed solution of methanol and isopropanol respectively, and stir to obtain a first mixture; Add 20 g of the functional material to the first mixture and stir to obtain a second mixture; Filter the second mixture to obtain the antioxidant solution.

4. The preparation method of the antioxidant printed circuit board according to claim 3, characterized in that, The functional material is soy protein or gelatin.

5. The preparation method of the antioxidant printed circuit board according to claim 1, characterized in that, The temperature of the first drying treatment is 50°C to 70°C, and the drying time is 1 to 2 h.

6. The preparation method of the antioxidant printed circuit board according to claim 1, characterized in that, The material of the conductive paint is conductive silver paste or conductive copper paste.

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