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Preparation method of high-insulating nanometer protective coating

A high-insulation and protective coating technology, which is applied in coatings, metal material coating processes, gaseous chemical plating, etc., can solve the application limitations of parylene coatings, harsh coating preparation conditions, and increased coating defects and other problems, to achieve the effect of excellent protection, improved compactness, and improved deposition efficiency

Inactive Publication Date: 2018-02-16
JIANGSU FAVORED NANOTECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This disadvantage has brought great restrictions to the application of parylene coating
The cost of raw materials for the preparation of Parylene coating is high, the coating preparation conditions are harsh (high temperature, high vacuum requirements), and the film formation rate is low, so it is difficult to be widely used
In addition, thick coatings can easily lead to many problems such as poor heat dissipation, signal blocking, increased coating defects, and low production efficiency.

Method used

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  • Preparation method of high-insulating nanometer protective coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] A preparation method for a high-insulation nano protective coating, comprising the following steps:

[0073] (1) Pre-processing:

[0074] Place the substrate in the reaction chamber of the nano-coating preparation equipment, close the reaction chamber and continuously evacuate the reaction chamber, pump the vacuum in the reaction chamber to 10 mTorr, pass in the inert gas Ar, and open the movement mechanism , causing the substrate to move in the reaction chamber;

[0075] In step (1), the base material is a solid material, and the solid material is a block aluminum material and a PCB board, and any interface of the base material surface can be exposed to cold and heat after the cold and heat cycle impact coating is prepared. in a loop test environment.

[0076] In the step (1), the reaction chamber is a rotating chamber, the volume of the reaction chamber is 50 L, the temperature of the reaction chamber is controlled at 30° C., and the flow rate of the inert gas is 5 ...

Embodiment 2

[0096] A preparation method for a high-insulation nano protective coating, comprising the following steps:

[0097] (1) Place the substrate in the reaction chamber of the nano-coating preparation equipment, close the reaction chamber and continuously evacuate the reaction chamber, pump the vacuum in the reaction chamber to 30 millitorr, feed inert gas He, and start Motion mechanism to make the base material move;

[0098] In step (1), the base material is a solid material, and the solid material is a block aluminum material, and any interface of the base material can be exposed to a damp heat test environment after the wet heat-resistant alternating coating is prepared on the surface of the base material.

[0099] In step (1), the reaction chamber is a cubic chamber with a volume of 250 L, the temperature of the reaction chamber is controlled at 40° C., and the flow rate of the inert gas is 15 sccm.

[0100] In step (1), the base material performs planetary motion, with a rev...

Embodiment 3

[0118] A preparation method for a high-insulation nano protective coating, comprising the following steps:

[0119] (1) Place the substrate in the reaction chamber of the nano-coating preparation equipment, close the reaction chamber and continuously evacuate the reaction chamber, pump the vacuum in the reaction chamber to 80 millitorr, and feed inert gases Ar and He The mixed gas starts the movement mechanism to make the substrate move;

[0120] In step (1), the base material is a solid material, and the solid material is a block polytetrafluoroethylene plate and an electrical component, and any interface of the block polytetrafluoroethylene plate can be exposed after the anti-mold coating is prepared on the surface Used in the GJB150.10A-2009 mold test environment, any interface of the electrical components can be exposed to the environment described in the international industrial waterproof grade standard IPX7 after the waterproof and electric breakdown resistant coating i...

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Abstract

The invention relates to a preparation method of a high-insulating nanometer protective coating, and belongs to the technical field of plasmas. According to the method, a reaction cavity is vacuumized, inert gas is led in to enable a base material to move, monomer steam is led into the reaction cavity, plasma discharging is started, chemical vapor deposition is carried out, and the high-insulatingnanometer protective coating is prepared by conducting chemical vapor deposition on the surface of the base material; the monomer steam is a mixture of at least one kind of low dipole moment organicmatter monomer and at least one kind of polyfunctional unsaturated hydrocarbon and hydrocarbon ramification; and according to the method, the organic matter monomers with the low dipole moment and thehigh chemical inertia are screened out, the free volume and the compactness of the coating are regulated and controlled through the polyfunctional monomer, due to the fact the plasma chemical vapor deposition method can be suitable for many monomers and can be high in controllability on the ingredient and the structure of the formed coating, the deposited coating has the more excellent protectionperformance and insulation performance compared with existing coatings like parylene under the condition that the thickness is the same.

Description

technical field [0001] The invention belongs to the technical field of plasma chemical vapor deposition, and in particular relates to a preparation method of a nano protective coating. Background technique [0002] Anti-mold, anti-humidity, and anti-salt mist (referred to as three antis) are important problems that need to be solved during the storage, transportation and use of electronic devices. Mold, salt spray and humidity often cause electronic devices to fail due to short circuits. Therefore, for the protective coating used in the electronics industry, in addition to having excellent "three-proof" performance, it must also have good insulation. [0003] At present, the use of protective coatings to protect electronic products is an effective way to improve the service life of electronic products. There are generally two methods for obtaining protective coatings, liquid phase and gas phase. The liquid phase method usually uses conformal paint. After coating the elect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C16/513C23C16/56
CPCC23C16/50C23C16/505C23C16/511C23C16/515C23C16/56C23C16/513
Inventor 宗坚
Owner JIANGSU FAVORED NANOTECHNOLOGY CO LTD
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