CN109337544A - PCBA board waterproof, moisture-proof, corrosion resistant nano coating, preparation method and its construction method - Google Patents
PCBA board waterproof, moisture-proof, corrosion resistant nano coating, preparation method and its construction method Download PDFInfo
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- CN109337544A CN109337544A CN201811088310.8A CN201811088310A CN109337544A CN 109337544 A CN109337544 A CN 109337544A CN 201811088310 A CN201811088310 A CN 201811088310A CN 109337544 A CN109337544 A CN 109337544A
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- pcba board
- proof
- moisture
- corrosion resistant
- coating
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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
- C09D171/02—Polyalkylene oxides
-
- 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
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Paints Or Removers (AREA)
Abstract
The present invention relates to nano paint technical field, especially PCBA board waterproofs, moisture-proof, corrosion resistant nano coating, are grouped as by each group of following parts by weight: 50~70 parts of perfluoropolyether resin oligomers；30~50 parts of silane coupling agent；5~10 parts of super levelling solvent；3~5 parts of surfactant；Also disclose preparation method and its construction method.The present invention has the advantages that using perfluoropolyether resin oligomers, add silane coupling agent, and it is aided with super levelling solvent, use efficient nano spray gun, the film thickness of spraying is very thin, system has lower molecular weight, extremely low viscosity, the subtle corner of PCBA board can be penetrated by levelling in a short time, Self-leveling excellent, normal temperature cure is at the film with super hydrophobic effect after solvent volatilization, coating thickness only has 300~800 nanometers, waterproofing grade reaches as high as IPX8, normal temperature cure, solve the problems, such as that the numerous components of PCBA are unable to high-temperature baking, so that PCBA board nano water-proof Moisture-proof corrosion-resistant coating is able to large-scale application.
Description
Technical field
The present invention relates to nano paint technical field, especially PCBA board waterproofs, moisture-proof, corrosion resistant nano coating, preparation
Method and its construction method.
Background technique
Wiring board is the substrate for carrying electronic component, it is bound fraction indirect material on the basis of direct material, is led to
Cross what the tool of production completed the process.Wherein, direct material, which refers to, is directly used on product in production or directly connects with product
The main material of touching；Indirect material refers in production indirectly using the secondary material on product or with product mediate contact.
In wiring board production there are three types of most important direct materials, i.e. substrate, prepreg and copper foil.Substrate (core/laminte) is
It is suppressed by prepreg and copper foil.Prepreg is then to combine different strengthening material and filler system by resin, glass cloth
It makes.
Present PCBA board realizes water-proof moisture-proof corrosion-resistant function usually using three-proofing coating, leads the disadvantage is that paint film is thicker
Cause heat dissipation bad, local temperature rise is big, and paint film itself is easy aging, and guard time is shorter, usually using just failure after several years.
Summary of the invention
The purpose of the present invention is to overcome the shortcomings of the existing technology, provides a kind of PCBA board waterproof, moisture-proof, anti-corrosion nano
Coating, preparation method and its construction method.
The purpose of the present invention is achieved through the following technical solutions: PCBA board waterproof, moisture-proof, corrosion resistant nano coating, by
The each group of following parts by weight is grouped as:
Further, the PCBA board waterproof, moisture-proof, corrosion resistant nano coating are grouped by each group of following parts by weight
At:
Further, the molecular weight of the perfluoropolyether resin oligomers is 5000~8000.
Further, the perfluoropolyether resin oligomers are perfluoropolyether glycidol resin oligomers, perfluoropolyether
One of epoxy resin oligomer, perfluoropolyether amino resins oligomer.
Further, the silane coupling agent is isobutyl triethoxy silane.
Further, the super levelling solvent is one of acrylic compounds levelling agent or alkyl-modified levelling agent.
Further, the surfactant is alkyl glucoside, fatty glyceride, fatty acid sorbitan or poly- sorb
One of ester or a variety of combinations.
The PCBA board waterproof, moisture-proof, corrosion resistant nano coating preparation method, comprising the following steps:
S1, by the perfluoropolyether resin oligomers of proportional quantities, silane coupling agent and super levelling solvent, under normal temperature environment,
It successively puts into nanometer homogenizer, control pressure is 100~120MPa, and revolving speed is 2000~3000rpm, after being uniformly dispersed, is made
It is sufficiently to dissolve each other；
S2, into step S1 acquired solution, the surfactant of additional proportion amount, under normal temperature and pressure environment, control turn
Speed is 300~400rpm, stirs 20~40min；
S3, standing 20~for 24 hours, shipment obtains nano paint.
The PCBA board waterproof, moisture-proof, corrosion resistant nano coating construction method, comprising the following steps:
A, dilute nano paint with perfluoro solvent, nano paint: the volume ratio of perfluoro solvent is 1~5:100, is received
Rice coating solution；
B, nano paint solution obtained in step A is loaded in nanometer spray gun, it is by nanometer spray gun that nano paint is molten
Liquid sprays in PCBA board；
C, PCBA board is placed in dustless room temperature workshop, to PCBA board from dry, shape on PCBA board surface under normal temperature environment
At ultra-thin hydrophobic coating.
The invention has the following advantages that
1, nano paint of the invention is thick in coating, has unique perfluor coating structure, thickness only has several hundred nanometers, right
The influence very little of heat dissipation, can almost ignore, and have overlength durability, can accomplish identical as the PCBA board service life.
2, using perfluoropolyether resin oligomers, room temperature silane coupling agent is added, and is aided with super levelling solvent, using efficient
Nanometer spray gun, the film thickness of spraying is very thin, and system has lower molecular weight, and extremely low viscosity can flow in a short time
The flat subtle corner for penetrating into PCBA board, Self-leveling excellent, normal temperature cure is at super hydrophobic effect after solvent volatilization
Film, coating thickness only has 300~800 nanometers, and waterproofing grade reaches as high as IPX8, and it is numerous to solve PCBA for normal temperature cure
Components are unable to the problem of high-temperature baking, so that PCBA board nano water-proof Moisture-proof corrosion-resistant coating is able to large-scale application.
Specific embodiment
Below with reference to embodiment, the present invention will be further described, but protection scope of the present invention is not limited to following institute
It states.
[embodiment 1]:
PCBA board waterproof, moisture-proof, corrosion resistant nano coating, are grouped as by each group of following parts by weight:
Further, the molecular weight of the perfluoropolyether resin oligomers is 5000.
Further, the perfluoropolyether resin oligomers are perfluoropolyether glycidol resin oligomers, perfluoropolyether
One of epoxy resin oligomer, perfluoropolyether amino resins oligomer.
Further, the silane coupling agent is isobutyl triethoxy silane.
Further, the super levelling solvent is one of acrylic compounds levelling agent or alkyl-modified levelling agent.
Further, the surfactant is alkyl glucoside, fatty glyceride, fatty acid sorbitan or poly- sorb
One of ester or a variety of combinations.
The PCBA board waterproof, moisture-proof, corrosion resistant nano coating preparation method, comprising the following steps:
S1, by the perfluoropolyether resin oligomers of proportional quantities, silane coupling agent and super levelling solvent, under normal temperature environment,
It successively puts into nanometer homogenizer, control pressure is 120MPa, revolving speed 20000rpm, after being uniformly dispersed, is allowed to sufficiently dissolve each other；
S2, into step S1 acquired solution, the surfactant of additional proportion amount, under normal temperature and pressure environment, control turn
Speed is 400rpm, stirs 20min；
S3, it stands for 24 hours, shipment obtains nano paint.
The PCBA board waterproof, moisture-proof, corrosion resistant nano coating construction method, comprising the following steps:
A, dilute nano paint with perfluoro solvent, nano paint: the volume ratio of perfluoro solvent is 1:100, obtains nanometer
Coating solution；
B, nano paint solution obtained in step A is loaded in nanometer spray gun, it is by nanometer spray gun that nano paint is molten
Liquid sprays in PCBA board；
C, PCBA board is placed in dustless room temperature workshop, to PCBA board from dry, shape on PCBA board surface under normal temperature environment
At ultra-thin hydrophobic coating.
[embodiment 2]:
PCBA board waterproof, moisture-proof, corrosion resistant nano coating, are grouped as by each group of following parts by weight:
Further, the molecular weight of the perfluoropolyether resin oligomers is 6500.
Further, the perfluoropolyether resin oligomers are perfluoropolyether glycidol resin oligomers, perfluoropolyether
One of epoxy resin oligomer, perfluoropolyether amino resins oligomer.
Further, the silane coupling agent is isobutyl triethoxy silane.
Further, the super levelling solvent is one of acrylic compounds levelling agent or alkyl-modified levelling agent.
Further, the surfactant is alkyl glucoside, fatty glyceride, fatty acid sorbitan or poly- sorb
One of ester or a variety of combinations.
The PCBA board waterproof, moisture-proof, corrosion resistant nano coating preparation method, comprising the following steps:
S1, by the perfluoropolyether resin oligomers of proportional quantities, silane coupling agent and super levelling solvent, under normal temperature environment,
It successively puts into nanometer homogenizer, control pressure is 110MPa, revolving speed 2500rpm, after being uniformly dispersed, is allowed to sufficiently dissolve each other；
S2, into step S1 acquired solution, the surfactant of additional proportion amount, under normal temperature and pressure environment, control turn
Speed is 350rpm, stirs 30min；
S3, standing 20~for 24 hours, shipment obtains nano paint.
The PCBA board waterproof, moisture-proof, corrosion resistant nano coating construction method, comprising the following steps:
A, dilute nano paint with perfluoro solvent, nano paint: the volume ratio of perfluoro solvent is 3:100, obtains nanometer
Coating solution；
B, nano paint solution obtained in step A is loaded in nanometer spray gun, it is by nanometer spray gun that nano paint is molten
Liquid sprays in PCBA board；
C, PCBA board is placed in dustless room temperature workshop, to PCBA board from dry, shape on PCBA board surface under normal temperature environment
At ultra-thin hydrophobic coating.
[embodiment 3]:
PCBA board waterproof, moisture-proof, corrosion resistant nano coating, are grouped as by each group of following parts by weight:
Further, the molecular weight of the perfluoropolyether resin oligomers is 8000.
Further, the perfluoropolyether resin oligomers are perfluoropolyether glycidol resin oligomers, perfluoropolyether
One of epoxy resin oligomer, perfluoropolyether amino resins oligomer.
Further, the silane coupling agent is isobutyl triethoxy silane.
Further, the super levelling solvent is one of acrylic compounds levelling agent or alkyl-modified levelling agent.
Further, the surfactant is alkyl glucoside, fatty glyceride, fatty acid sorbitan or poly- sorb
One of ester or a variety of combinations.
The PCBA board waterproof, moisture-proof, corrosion resistant nano coating preparation method, comprising the following steps:
S1, by the perfluoropolyether resin oligomers of proportional quantities, silane coupling agent and super levelling solvent, under normal temperature environment,
It successively puts into nanometer homogenizer, control pressure is 100MPa, revolving speed 3000rpm, after being uniformly dispersed, is allowed to sufficiently dissolve each other；
S2, into step S1 acquired solution, the surfactant of additional proportion amount, under normal temperature and pressure environment, control turn
Speed is 300rpm, stirs 40min；
S3,20h is stood, shipment obtains nano paint.
The PCBA board waterproof, moisture-proof, corrosion resistant nano coating construction method, comprising the following steps:
A, dilute nano paint with perfluoro solvent, nano paint: the volume ratio of perfluoro solvent is 5:100, obtains nanometer
Coating solution；
B, nano paint solution obtained in step A is loaded in nanometer spray gun, it is by nanometer spray gun that nano paint is molten
Liquid sprays in PCBA board；
C, PCBA board is placed in dustless room temperature workshop, to PCBA board from dry, shape on PCBA board surface under normal temperature environment
At ultra-thin hydrophobic coating.
[embodiment 4]:
PCBA board waterproof, moisture-proof, corrosion resistant nano coating, are grouped as by each group of following parts by weight:
Further, the molecular weight of the perfluoropolyether resin oligomers is 7000.
Further, the perfluoropolyether resin oligomers are perfluoropolyether glycidol resin oligomers, perfluoropolyether
One of epoxy resin oligomer, perfluoropolyether amino resins oligomer.
Further, the silane coupling agent is isobutyl triethoxy silane.
Further, the super levelling solvent is one of acrylic compounds levelling agent or alkyl-modified levelling agent.
Further, the surfactant is alkyl glucoside, fatty glyceride, fatty acid sorbitan or poly- sorb
One of ester or a variety of combinations.
The PCBA board waterproof, moisture-proof, corrosion resistant nano coating preparation method, comprising the following steps:
S1, by the perfluoropolyether resin oligomers of proportional quantities, silane coupling agent and super levelling solvent, under normal temperature environment,
It successively puts into nanometer homogenizer, control pressure is 110MPa, revolving speed 2300rpm, after being uniformly dispersed, is allowed to sufficiently dissolve each other；
S2, into step S1 acquired solution, the surfactant of additional proportion amount, under normal temperature and pressure environment, control turn
Speed is 300rpm, stirs 25min；
S3, standing 20~for 24 hours, shipment obtains nano paint.
The PCBA board waterproof, moisture-proof, corrosion resistant nano coating construction method, comprising the following steps:
A, dilute nano paint with perfluoro solvent, nano paint: the volume ratio of perfluoro solvent is 4:100, obtains nanometer
Coating solution；
B, nano paint solution obtained in step A is loaded in nanometer spray gun, it is by nanometer spray gun that nano paint is molten
Liquid sprays in PCBA board；
C, PCBA board is placed in dustless room temperature workshop, to PCBA board from dry, shape on PCBA board surface under normal temperature environment
At ultra-thin hydrophobic coating.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (9)
1.PCBA plate waterproof, moisture-proof, corrosion resistant nano coating, it is characterised in that: be grouped as by each group of following parts by weight:
2. PCBA board waterproof according to claim 1, moisture-proof, corrosion resistant nano coating, it is characterised in that: by following weight
The each group of part is grouped as:
3. PCBA board waterproof according to claim 1 or 2, moisture-proof, corrosion resistant nano coating, it is characterised in that: described complete
The molecular weight of perfluoroalkyl polyether resin oligomers is 5000~8000.
4. PCBA board waterproof according to claim 3, moisture-proof, corrosion resistant nano coating, it is characterised in that: the perfluor is poly-
Ether resin oligomer is perfluoropolyether glycidol resin oligomers, perfluoropolyether epoxy oligomer, perfluoropolyether amino
One of resin oligomers.
5. PCBA board waterproof according to claim 1 or 2, moisture-proof, corrosion resistant nano coating, it is characterised in that: the silicon
Alkane coupling agent is isobutyl triethoxy silane.
6. PCBA board waterproof according to claim 1 or 2, moisture-proof, corrosion resistant nano coating, it is characterised in that: described super
Levelling solvent is one of acrylic compounds levelling agent or alkyl-modified levelling agent.
7. PCBA board waterproof according to claim 1 or 2, moisture-proof, corrosion resistant nano coating, it is characterised in that: the table
Face activating agent is one of alkyl glucoside, fatty glyceride, fatty acid sorbitan or polysorbate or a variety of combinations.
8. PCBA board waterproof, moisture-proof, corrosion resistant nano coating preparation method as described in claim 1~7 any one,
It is characterized in that: the following steps are included:
S1, by the perfluoropolyether resin oligomers of proportional quantities, silane coupling agent and super levelling solvent, under normal temperature environment, successively
It puts into nanometer homogenizer, control pressure is 100~120MPa, and revolving speed is 2000~3000rpm, after being uniformly dispersed, is allowed to fill
Divide and dissolves each other；
S2, into step S1 acquired solution, the surfactant of additional proportion amount, under normal temperature and pressure environment, control revolving speed be
300~400rpm stirs 20~40min；
S3, standing 20~for 24 hours, shipment obtains nano paint.
9. PCBA board waterproof, moisture-proof, corrosion resistant nano coating construction method as described in claim 1~7 any one,
It is characterized in that: the following steps are included:
A, dilute nano paint with perfluoro solvent, nano paint: the volume ratio of perfluoro solvent is 1~5:100, obtains nanometer painting
Expect solution；
B, nano paint solution obtained in step A is sprayed nano paint solution by nanometer spray gun loaded in nanometer spray gun
It is coated onto PCBA board；
C, PCBA board is placed in dustless room temperature workshop, is formed on PCBA board surface super under normal temperature environment from doing to PCBA board
Thin hydrophobic coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811088310.8A CN109337544A (en) | 2018-09-18 | 2018-09-18 | PCBA board waterproof, moisture-proof, corrosion resistant nano coating, preparation method and its construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811088310.8A CN109337544A (en) | 2018-09-18 | 2018-09-18 | PCBA board waterproof, moisture-proof, corrosion resistant nano coating, preparation method and its construction method |
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| Publication Number | Publication Date |
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| CN109337544A true CN109337544A (en) | 2019-02-15 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811088310.8A Pending CN109337544A (en) | 2018-09-18 | 2018-09-18 | PCBA board waterproof, moisture-proof, corrosion resistant nano coating, preparation method and its construction method |
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Cited By (1)
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| KR20220112568A (en) * | 2021-02-04 | 2022-08-11 | 한국기계연구원 | A composition of a waterproof coating agent and method for waterproof coating using the same |
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Application publication date: 20190215 |