Waterproof coating for electronic product and preparation method thereof

A waterproof coating and electronic product technology, applied in coatings, anti-corrosion coatings, fire-resistant coatings, etc., can solve problems such as poor water resistance, loss of important documents, and scrapped equipment, and achieve strong anti-corrosion ability, strong pressure resistance, The effect of prolonging the service life

Inactive Publication Date: 2017-11-07
HEFEI SIBOT SOFTWARE DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Water has always been the natural enemy of electronic equipment. The biggest fatal injury is its internal components, especially the circuit board with precise structure, which has poor resistance to water vapor. Once the electronic equipment enters water or gets damp, it will cause irreparable damage.
Either the whole equipment is scrapped or it is disassembled for maintenance. In addition to the loss of property, it will also cause the loss of important documents.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A waterproof coating for electronic products, including the following raw materials: 50g of phenolic resin, 16g of polycarbonate, 6g of sodium fluorosilicate, 7g of bentonite, 3g of hollow glass beads, 5g of fly ash, 3g of gypsum powder, Acrylic emulsion 5g, leveling agent methyl phenyl polysiloxane 0.5g, GPE type defoamer 1.3g, stabilizer calcium stearate 0.3g.

[0023] The above-mentioned preparation method for the waterproof coating of electronic products comprises the following steps:

[0024] (1) Weigh bentonite, hollow glass microspheres, fly ash, and gypsum powder according to weight, mix and stir at 42°C for 25 minutes, and send them into the fluid energy mill for ultrafine grinding to obtain mixed powder a; among them, the gas consumption of the fluid energy mill 1~3m 3 / min, the output particle size is 5-20μm.

[0025] (2) Add phenolic resin, polycarbonate, and acrylic emulsion into an autoclave, stir and react at 60°C and 5MPa for 2.2 hours, then raise the ...

Embodiment 2

[0028] A waterproof coating for electronic products, including the following raw materials: 44g phenolic resin, 16g polycarbonate, 7g sodium fluorosilicate, 6g bentonite, 5g hollow glass beads, 4g fly ash, 5g gypsum powder, Acrylic emulsion 8g, leveling agent organo-modified siloxane 0.3g, GPES type defoamer 1.5g, stabilizer dibutyltin maleate 0.5g.

[0029] The above-mentioned preparation method for the waterproof coating of electronic products comprises the following steps:

[0030] (1) Weigh bentonite, hollow glass microspheres, fly ash, and gypsum powder according to weight, mix and stir at 48°C for 23 minutes, and send them into the fluid energy mill for ultrafine grinding to obtain mixed powder a; among them, the gas consumption of the fluid energy mill 1~3m 3 / min, the output particle size is 5-20μm.

[0031] (2) Add phenolic resin, polycarbonate, and acrylic emulsion into an autoclave, stir and react at 66°C and 3MPa for 2.5 hours, then raise the temperature to 90°C ...

Embodiment 3

[0034] A waterproof coating for electronic products, including the following raw materials: 52g phenolic resin, 14g polycarbonate, 7g sodium fluorosilicate, 6g bentonite, 3g hollow glass beads, 5g fly ash, 4g gypsum powder, Acrylic emulsion 6g, leveling agent methylphenyl polysiloxane 0.5g, GP type defoamer 1.5g, stabilizer di-n-butyltin dilaurate 0.3g.

[0035] The above-mentioned preparation method for the waterproof coating of electronic products comprises the following steps:

[0036] (1) Weigh bentonite, hollow glass microspheres, fly ash, and gypsum powder according to weight, mix and stir at 46°C for 25 minutes, and send them into the fluid energy mill for ultrafine grinding to obtain mixed powder a; among them, the gas consumption of the fluid energy mill 1~3m 3 / min, the output particle size is 5-20μm.

[0037] (2) Add phenolic resin, polycarbonate, and acrylic emulsion into an autoclave, stir and react at 72°C and 5MPa for 2.2 hours, then raise the temperature to 8...

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PUM

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Abstract

The invention discloses a waterproof coating for an electronic product and a preparation method thereof. The waterproof coating comprises the following materials in parts by weight: 40-60 parts of phenolic resin, 10-20 parts of polycarbonate, 2-10 parts of sodium fluosilicate, 5-10 parts of bentonite, 1-6 parts of hollow glass beads, 3-8 parts of fly ash, 2-6 parts of gypsum powder, 3-10 parts of acrylic emulsion, 0.2-0.8 part of leveling agent, 0.5-2.5 parts of defoaming agent and 0.1-0.6 part of stabilizer. The waterproof coating disclosed by the invention has strong compression resistance and splitting resistance, is strong in hardness, high in wear resistance and strong in corrosion resistance, and not only can prevent water, but also can resist other types of corrosive reagents so as to protect the internal precise structure of the electronic product and prolong the service life of the electronic product.

Description

technical field [0001] The invention relates to the field of waterproof coatings, in particular to a waterproof coating for electronic products and a preparation method thereof. Background technique [0002] Water has always been the natural enemy of electronic equipment. The biggest fatal injury is its internal components, especially the circuit boards with delicate structure, which have poor resistance to water vapor. Once the electronic equipment is flooded or damp, it will cause irreparable damage. Either the whole equipment is scrapped or it is disassembled for maintenance. In addition to the loss of property, it will also cause the loss of important documents. With the gradual miniaturization, integration, and multi-function development of electronic consumer products, the waterproof quality of mobile phones, computers, cameras, and wearable electronic products occupies a pivotal position. Therefore, it is an urgent problem to develop a waterproof coating that can res...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D161/06C09D169/00C09D133/00C09D7/12C09D5/08C09D5/18
CPCC09D161/06C08L2201/02C08L2201/08C08L2201/10C08L2203/20C08L2205/035C09D5/08C09D5/18C08L69/00C08L33/00C08L83/04C08K13/04C08K3/34C08K3/346C08K7/28C08K5/098
Inventor 吴青明
Owner HEFEI SIBOT SOFTWARE DEV CO LTD
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