CN106280937A - A kind of waterproof anti-corrosion three-proofing coating used for printed circuit board and preparation method thereof - Google Patents
A kind of waterproof anti-corrosion three-proofing coating used for printed circuit board and preparation method thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D171/00—Coating compositions based on polyethers obtained by reactions forming an ether link in the main chain; Coating compositions based on derivatives of such polymers
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/14—Paints containing biocides, e.g. fungicides, insecticides or pesticides
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1656—Antifouling paints; Underwater paints characterised by the film-forming substance
- C09D5/1662—Synthetic film-forming substance
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1687—Use of special additives
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08L2203/20—Applications use in electrical or conductive gadgets
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
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Abstract
The invention discloses a kind of waterproof anti-corrosion three-proofing coating used for printed circuit board, it is prepared from the following raw materials in parts by weight: polyether acrylate 30 40 parts, acrylic acid methyl ester. 10 15 parts, Ethylene glycol dimethacrylate 57 parts, barium stearate 12 parts, 8 10 parts of forsterite powder, bamboo powder 35 parts, metakaolin 35 parts, aluminium dihydrogen phosphate 57 parts, attapulgite modified 57 parts, white carbon 56 parts, epoxy soybean oil 34 parts, tetramethylolmethane 56 parts, butyl latex 10 15 parts, isopropanolamine 24 parts, lauryl glucosyl 35 parts, oleum bergamottae 0.3 0.5 parts, benzyl alcohol 46 parts, tackifying resin 10 12 parts.Three-proofing coating of the present invention, adhesive strength is high, and waterproof anti-corrosion excellent performance, resistance to low temperature is good.
Description
Technical field
The present invention relates to printed circuit board guard technology field, especially relate to a kind of waterproof anti-corrosion used for printed circuit board three and prevent
Paint and preparation method thereof.
Background technology
Printed circuit board refers on insulating substrate, forms interconnection circuit and printing unit from point to points according to predetermined design
Part, is the supplier of electronic devices and components electrical connection.Circuit board is the most common, little to mobile phone, USB flash disk, photograph
Machine, arrives greatly the high-end product such as space flight and aviation, high ferro motor-car.Along with electronics categories and the increase increasingly of quantity, electricity to be improved
The competitiveness of sub-product, the quality of circuit board of keeping under strict control is particularly important link.In actual application, the use of circuit board
Circumstance complication is various, may face the environment such as humidity, high heat, salt fog, low temperature, vibrations, Gao Chen, if not carrying out corresponding effective
Protection, circuit board will occur rapidly burn into deform, go mouldy, the problem such as aging, ultimately result in circuit malfunction, equipment occurs former
Barrier.
In order to alleviate the external environment destruction to circuit board, it is ensured that equipment normal operation, often anti-in circuit board surface spraying
Vernix, also referred to as three-proofing coating, its main chemical composition is acrylate, silicone, polyurethane, epoxy resin etc., works former
Reason is to form layer protecting film at circuit board surface, so that circuit board damages from working environment, thus promotes the matter of circuit board
Amount reliability, existing three-proofing coating is primarily present that the protection cycle is short, high temperature is easy to fall off, can not resist environmental contaminants, especially
The shortcomings such as the burn into of chemical pollutant is difficult to reprocess, poisonous and harmful, it is therefore necessary to improve three-proofing coating formula, strengthen further
The combination property of circuit board, promotes protection effect, to meet the demand of integrated circuit technique fast development.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, it is provided that a kind of waterproof anti-corrosion used for printed circuit board three is prevented
Paint, adhesive strength is high, waterproof anti-corrosion excellent performance, can not only realize the NBC protective performance of routine, has more excellent low temperature resistant
Performance.
To achieve these goals, the present invention adopts the following technical scheme that
A kind of waterproof anti-corrosion three-proofing coating used for printed circuit board, is prepared by the raw materials in: polyether acrylate
30-40 part, acrylic acid methyl ester. 10-15 part, Ethylene glycol dimethacrylate 5-7 part, barium stearate 1-2 part, forsterite powder
8-10 part, bamboo powder 3-5 part, metakaolin 3-5 part, aluminium dihydrogen phosphate 5-7 part, attapulgite modified 5-7 part, white carbon 5-6 part,
Epoxy soybean oil 3-4 part, tetramethylolmethane 5-6 part, butyl latex 10-15 part, isopropanolamine 2-4 part, lauryl glucosyl
3-5 part, oleum bergamottae 0.3-0.5 part, benzyl alcohol 4-6 part, tackifying resin 10-12 part.
Described tackifying resin is prepared by following methods: by 15-20 weight portion chlorohydrin rubber, 20-25 parts by weight of xylene,
3-5 weight portion maleic anhydride, 0.1-0.3 parts by weight of trimelitic three monooctyl ester, 0.1-0.3 parts by weight of crosslinking agent TAC mix,
At 80-100 DEG C, react 1-2 hour；It is subsequently adding 10-15 weight parts of polymer Colophonium, 0.3-0.5 weight portion age resistor,
At 130-150 DEG C, react 2-3 hour；Add 2-4 weight portion MTMS, 1-3 weight portion ferrocene,
React 1-2 hour at 140-150 DEG C；Xylene solvent is finally distilled off, obtains tackifying resin.
Described attapulgite modified prepared by following methods: attapulgite oxalic acid is adjusted to the slurry that pH is 4,
After adding Silane coupling agent KH550/ethanol solution reaction 3-4 hour prepared at 75 DEG C, taking-up dehydrated alcohol is washed
Wash for several times, then be washed with deionized, be dried at 70 DEG C, then grind to form nano powder, obtain attapulgite modified.
The preparation method of described waterproof anti-corrosion three-proofing coating used for printed circuit board, including following preparation process:
(1) first by polyether acrylate, acrylic acid methyl ester., Ethylene glycol dimethacrylate, epoxy soybean oil mixing, stir
Agitating mixes 30-40min；
(2) by barium stearate, forsterite powder, bamboo powder, metakaolin, aluminium dihydrogen phosphate, attapulgite modified, white carbon
Join in above-mentioned mixed liquor, be heated to 35-50 DEG C, stir 20-30min；
(3) add surplus stock, ultrasonic disperse 20-30min, be heated to 110-130 DEG C, with 400-500 rev/min turn
Speed stirring reaction 30-50min, stirring is cooled to room temperature after terminating and get final product, and finished product uses complete in 1-2h.
Compared with the prior art, beneficial effects of the present invention is as follows:
The waterproof anti-corrosion three-proofing coating used for printed circuit board of the present invention, by adding homemade tackifying resin, improves paint film
Adhesive force, rapidly, product stream degeneration well easily sprays, paint film adhesion-tight in solidification, and in high humidity environment, endurable performance is prevented
Protect effect, it is to avoid microbial growth, make the adhesive property of three-proofing coating prepared, oil resistant, frost resistance strengthen, low temperature can be met and do not open
The environmental requirement of glue, adhesive strength is high；Add metakaolin and aluminium dihydrogen phosphate, after reaction, produce the gelling emulsion of indefinite form,
Gelling emulsion can fill the space of filler, thus inhibits the infiltration of water, improves the moisture resistant performance of three-proofing coating, alleviates humidity
The microorganism destruction to protective coating in environment, it is achieved long-term efficient protection, strengthens antibacterial and mouldproof ability, slows down mist of oil pair
The corrosion of circuit board,；In conjunction with forsterite powder, bamboo powder, attapulgite modified compounding, three-proofing coating is made to have good mechanics
Performance and weatherability, can improve cold-resistant, the impact resistance ability of three-proofing coating；Three-proofing coating of the present invention possesses excellent toughness and attachment
Power, can not only realize the NBC protective performance of routine, have more excellent resistance to low temperature, and test result shows, at as little as-70 DEG C rings
In border, paint film is the most tough and tensile full, long-time in not efflorescence cracking, it is possible to meet the circuit board in relatively low working environment daily
Protection uses, and has certain self-cleaning, dirt easy to clean, slow down dirt accumulation in the circuit board greatly existing
As, thus avoid circuit board short circuit that dirt causes, leak electricity, the problem such as corrosion, extend circuit board service life, the suitableeest
Use for the circuit board protection higher to working environment purity requirements.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described.
Embodiment 1:
A kind of waterproof anti-corrosion three-proofing coating used for printed circuit board, is prepared by the raw materials in: polyether acrylate
30 parts, acrylic acid methyl ester. 15 parts, Ethylene glycol dimethacrylate 5 parts, barium stearate 1 part, 8 parts of forsterite powder, bamboo powder 3
Part, metakaolin 3 parts, aluminium dihydrogen phosphate 7 parts, attapulgite modified 5 parts, white carbon 5 parts, epoxy soybean oil 3 parts, tetramethylolmethane
5 parts, butyl latex 10 parts, isopropanolamine 2 parts, lauryl glucosyl 3 parts, oleum bergamottae 0.3 part, benzyl alcohol 4 parts, thickening
Resin 10 parts.
Described tackifying resin is prepared by following methods: by 15 weight portion chlorohydrin rubbers, 20 parts by weight of xylene, 3 weight
Part maleic anhydride, 0.3 parts by weight of trimelitic three monooctyl ester, 0.1 parts by weight of crosslinking agent TAC mixing, at 80 DEG C, react 2
Hour；It is subsequently adding 10 weight parts of polymer Colophonium, 0.3 weight portion age resistor, at 130 DEG C, reacts 3 hours；Add 2 weight
Part MTMS, 1 weight portion ferrocene, react 2 hours at 140 DEG C；Xylene solvent is finally distilled off,
To tackifying resin.
Described attapulgite modified prepared by following methods: attapulgite oxalic acid is adjusted to the slurry that pH is 4,
After adding the Silane coupling agent KH550/ethanol solution reaction 3 hours prepared at 75 DEG C, taking-up absolute ethanol washing
For several times, then it is washed with deionized, is dried at 70 DEG C, then grinds to form nano powder, obtain attapulgite modified.
The preparation method of described waterproof anti-corrosion three-proofing coating used for printed circuit board, including following preparation process:
(1) first by polyether acrylate, acrylic acid methyl ester., Ethylene glycol dimethacrylate, epoxy soybean oil mixing, stir
Agitating mixes 30min；
(2) by barium stearate, forsterite powder, bamboo powder, metakaolin, aluminium dihydrogen phosphate, attapulgite modified, white carbon
Join in above-mentioned mixed liquor, be heated to 35 DEG C, stir 30min；
(3) add surplus stock, ultrasonic disperse 20min, be heated to 110 DEG C, stir reaction with the rotating speeds of 400 revs/min
50min, stirring is cooled to room temperature after terminating and get final product, and finished product uses complete in 1h.
The three-proofing coating paint film of the present embodiment 1 is smooth, bright plentiful, 7min under the conditions of surface drying time 25 DEG C；Do solid work the time 25
3h under the conditions of DEG C；Impact strength 80kg/cm；In salt fog resistance 25 DEG C, 65h non-foaming, not stratified, do not fall off；Oil resistivity 70# vapour
Oil, non-foaming, not stratified in 70h, do not fall off；Operating temperature range-50--200 DEG C.
Embodiment 2:
A kind of waterproof anti-corrosion three-proofing coating used for printed circuit board, is prepared by the raw materials in: polyether acrylate
35 parts, acrylic acid methyl ester. 12 parts, Ethylene glycol dimethacrylate 6 parts, barium stearate 2 parts, 9 parts of forsterite powder, bamboo powder 4
Part, metakaolin 4 parts, aluminium dihydrogen phosphate 6 parts, attapulgite modified 6 parts, white carbon 6 parts, epoxy soybean oil 4 parts, tetramethylolmethane
5 parts, butyl latex 12 parts, isopropanolamine 3 parts, lauryl glucosyl 4 parts, oleum bergamottae 0.4 part, benzyl alcohol 5 parts, thickening
Resin 11 parts.
Described tackifying resin is prepared by following methods: by 16 weight portion chlorohydrin rubbers, 22 parts by weight of xylene, 4 weight
Part maleic anhydride, 0.2 parts by weight of trimelitic three monooctyl ester, 0.2 parts by weight of crosslinking agent TAC mixing, at 90 DEG C, react 2
Hour；It is subsequently adding 12 weight parts of polymer Colophonium, 0.4 weight portion age resistor, at 140 DEG C, reacts 3 hours；Add 3 weight
Part MTMS, 2 weight portion ferrocene, react 2 hours at 145 DEG C；Xylene solvent is finally distilled off,
To tackifying resin.
Described attapulgite modified prepared by following methods: attapulgite oxalic acid is adjusted to the slurry that pH is 4,
After adding the Silane coupling agent KH550/ethanol solution reaction 4 hours prepared at 75 DEG C, taking-up absolute ethanol washing
For several times, then it is washed with deionized, is dried at 70 DEG C, then grinds to form nano powder, obtain attapulgite modified.
The preparation method of described waterproof anti-corrosion three-proofing coating used for printed circuit board, including following preparation process:
(1) first by polyether acrylate, acrylic acid methyl ester., Ethylene glycol dimethacrylate, epoxy soybean oil mixing, stir
Agitating mixes 35min；
(2) by barium stearate, forsterite powder, bamboo powder, metakaolin, aluminium dihydrogen phosphate, attapulgite modified, white carbon
Join in above-mentioned mixed liquor, be heated to 40 DEG C, stir 25min；
(3) add surplus stock, ultrasonic disperse 25min, be heated to 120 DEG C, stir reaction with the rotating speeds of 450 revs/min
40min, stirring is cooled to room temperature after terminating and get final product, and finished product uses complete in 2h.
The three-proofing coating paint film of the present embodiment 2 is smooth, bright plentiful, 3min under the conditions of surface drying time 25 DEG C；Do solid work the time 25
2h under the conditions of DEG C；Impact strength 120kg/cm；In salt fog resistance 25 DEG C, 70h non-foaming, not stratified, do not fall off；Oil resistivity 70#
In gasoline, 70h non-foaming, not stratified, do not fall off；Operating temperature range-50--200 DEG C.
Embodiment 3:
A kind of waterproof anti-corrosion three-proofing coating used for printed circuit board, is prepared by the raw materials in: polyether acrylate
40 parts, acrylic acid methyl ester. 15 parts, Ethylene glycol dimethacrylate 7 parts, barium stearate 2 parts, 10 parts of forsterite powder, bamboo powder 5
Part, metakaolin 5 parts, aluminium dihydrogen phosphate 7 parts, attapulgite modified 7 parts, white carbon 6 parts, epoxy soybean oil 4 parts, tetramethylolmethane
6 parts, butyl latex 15 parts, isopropanolamine 4 parts, lauryl glucosyl 5 parts, oleum bergamottae 0.5 part, benzyl alcohol 6 parts, thickening
Resin 12 parts.
Described tackifying resin is prepared by following methods: by 20 weight portion chlorohydrin rubbers, 25 parts by weight of xylene, 5 weight
Part maleic anhydride, 0.3 parts by weight of trimelitic three monooctyl ester, 0.3 parts by weight of crosslinking agent TAC mixing, at 100 DEG C, react 2
Hour；It is subsequently adding 15 weight parts of polymer Colophonium, 0.5 weight portion age resistor, at 150 DEG C, reacts 3 hours；Add 4 weight
Part MTMS, 3 weight portion ferrocene, react 2 hours at 150 DEG C；Xylene solvent is finally distilled off,
To tackifying resin.
Described attapulgite modified prepared by following methods: attapulgite oxalic acid is adjusted to the slurry that pH is 4,
After adding the Silane coupling agent KH550/ethanol solution reaction 4 hours prepared at 75 DEG C, taking-up absolute ethanol washing
For several times, then it is washed with deionized, is dried at 70 DEG C, then grinds to form nano powder, obtain attapulgite modified.
The preparation method of described waterproof anti-corrosion three-proofing coating used for printed circuit board, including following preparation process:
(1) first by polyether acrylate, acrylic acid methyl ester., Ethylene glycol dimethacrylate, epoxy soybean oil mixing, stir
Agitating mixes 40min；
(2) by barium stearate, forsterite powder, bamboo powder, metakaolin, aluminium dihydrogen phosphate, attapulgite modified, white carbon
Join in above-mentioned mixed liquor, be heated to 50 DEG C, stir 30min；
(3) add surplus stock, ultrasonic disperse 30min, be heated to 130 DEG C, stir reaction with the rotating speeds of 500 revs/min
50min, stirring is cooled to room temperature after terminating and get final product, and finished product uses complete in 2h.
The three-proofing coating paint film of the present embodiment 3 is smooth, bright plentiful, 5min under the conditions of surface drying time 25 DEG C；Do solid work the time 25
2.5h under the conditions of DEG C；Impact strength 100kg/cm；In salt fog resistance 25 DEG C, 72h non-foaming, not stratified, do not fall off；Oil resistivity
In 70# gasoline, 71h non-foaming, not stratified, do not fall off；Operating temperature range-50--200 DEG C.
Claims (4)
1. a waterproof anti-corrosion three-proofing coating used for printed circuit board, it is characterised in that: it is prepared by the raw materials in: polyethers
Acrylate 30-40 part, acrylic acid methyl ester. 10-15 part, Ethylene glycol dimethacrylate 5-7 part, barium stearate 1-2 part, magnesium
Fructus Canarii albi stone powder 8-10 part, bamboo powder 3-5 part, metakaolin 3-5 part, aluminium dihydrogen phosphate 5-7 part, attapulgite modified 5-7 part, Linesless charcoal
Black 5-6 part, epoxy soybean oil 3-4 part, tetramethylolmethane 5-6 part, butyl latex 10-15 part, isopropanolamine 2-4 part, dodecyl
Glucoside 3-5 part, oleum bergamottae 0.3-0.5 part, benzyl alcohol 4-6 part, tackifying resin 10-12 part.
Waterproof anti-corrosion the most according to claim 1 three-proofing coating used for printed circuit board, it is characterised in that: described thickening tree
Fat is prepared by following methods: by 15-20 weight portion chlorohydrin rubber, 20-25 parts by weight of xylene, 3-5 weight portion maleic acid
Acid anhydride, 0.1-0.3 parts by weight of trimelitic three monooctyl ester, 0.1-0.3 parts by weight of crosslinking agent TAC mix, and at 80-100 DEG C, react 1-
2 hours；Being subsequently adding 10-15 weight parts of polymer Colophonium, 0.3-0.5 weight portion age resistor, at 130-150 DEG C, 2-3 is little in reaction
Time；Add 2-4 weight portion MTMS, 1-3 weight portion ferrocene, react 1-2 hour at 140-150 DEG C；
Xylene solvent is finally distilled off, obtains tackifying resin.
Waterproof anti-corrosion the most according to claim 1 three-proofing coating used for printed circuit board, it is characterised in that: described modification is recessed
Convex rod soil is prepared by following methods: attapulgite oxalic acid is adjusted to the slurry that pH is 4, adds the silicon prepared at 75 DEG C
After alkane coupling agent KH550/ ethanol solution reacts 3-4 hour, taking-up with absolute ethanol washing for several times, then is washed with deionized water
Wash, be dried at 70 DEG C, then grind to form nano powder, obtain attapulgite modified.
The preparation method of waterproof anti-corrosion the most according to claim 1 three-proofing coating used for printed circuit board, it is characterised in that: bag
Include following preparation process:
(1) first by polyether acrylate, acrylic acid methyl ester., Ethylene glycol dimethacrylate, epoxy soybean oil mixing, stirring is stirred
Mix 30-40min；
(2) by barium stearate, forsterite powder, bamboo powder, metakaolin, aluminium dihydrogen phosphate, attapulgite modified, white carbon addition
In above-mentioned mixed liquor, it is heated to 35-50 DEG C, stirs 20-30min；
(3) add surplus stock, ultrasonic disperse 20-30min, be heated to 110-130 DEG C, stir with the rotating speed of 400-500 rev/min
Mixing reaction 30-50min, stirring is cooled to room temperature after terminating and get final product, and finished product uses complete in 1-2h.
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| CN201610779397.8A CN106280937A (en) | 2016-08-30 | 2016-08-30 | A kind of waterproof anti-corrosion three-proofing coating used for printed circuit board and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106883708A (en) * | 2017-03-23 | 2017-06-23 | 曹昕原 | A kind of electrical equipment high moisture three-proofing coating and preparation method thereof |
| CN107286820A (en) * | 2017-06-06 | 2017-10-24 | 安徽腾龙泵阀制造有限公司 | A kind of chemical pump coating resistant to chemical etching |
| CN115449297A (en) * | 2022-09-30 | 2022-12-09 | 深圳歌德新创科技有限公司 | Coating and preparation method thereof |
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| CN106883708B (en) * | 2017-03-23 | 2019-02-15 | 曹昕原 | A kind of electrical equipment high moisture three-proofing coating and preparation method thereof |
| CN107286820A (en) * | 2017-06-06 | 2017-10-24 | 安徽腾龙泵阀制造有限公司 | A kind of chemical pump coating resistant to chemical etching |
| CN115449297A (en) * | 2022-09-30 | 2022-12-09 | 深圳歌德新创科技有限公司 | Coating and preparation method thereof |
| CN115449297B (en) * | 2022-09-30 | 2023-09-01 | 深圳歌德新创科技有限公司 | Coating and preparation method thereof |
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Application publication date: 20170104 |