CN110283491A - Aqueous dual-component electrophoretic coating and preparation method thereof - Google Patents
Aqueous dual-component electrophoretic coating and preparation method thereof Download PDFInfo
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- CN110283491A CN110283491A CN201910465274.0A CN201910465274A CN110283491A CN 110283491 A CN110283491 A CN 110283491A CN 201910465274 A CN201910465274 A CN 201910465274A CN 110283491 A CN110283491 A CN 110283491A
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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
- C09D5/44—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for electrophoretic applications
- C09D5/4407—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for electrophoretic applications with polymers obtained by polymerisation reactions involving only carbon-to-carbon unsaturated bonds
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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
- C09D5/44—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for electrophoretic applications
- C09D5/4419—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for electrophoretic applications with polymers obtained otherwise than by polymerisation reactions only involving carbon-to-carbon unsaturated bonds
- C09D5/443—Polyepoxides
- C09D5/4434—Polyepoxides characterised by the nature of the epoxy binder
- C09D5/4442—Binder characterised by functional groups
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- 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
- C09D5/44—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for electrophoretic applications
- C09D5/4419—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for electrophoretic applications with polymers obtained otherwise than by polymerisation reactions only involving carbon-to-carbon unsaturated bonds
- C09D5/443—Polyepoxides
- C09D5/4457—Polyepoxides containing special additives, e.g. pigments, polymeric particles
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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
- C09D5/44—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for electrophoretic applications
- C09D5/4473—Mixture of polymers
Abstract
The present invention relates to a kind of aqueous dual-component electrophoretic coating and preparation method thereof, electrophoretic coating includes mill base, lotion and deionized water；Mill base includes: the environmentally friendly auxiliary agent of 15~30 parts of water based acrylic resins, 10~30 parts of amino-modified epoxy resins, 5~20 parts of Blocked Isocyanate Curing Agents, 0.1~0.2 part of pH adjusting agent, 5~10 parts of kaolin, 3~10 parts of pigment, 3~8 parts of ptfe micropowders, 0.1~1 part of microgel, 10~35 parts of deionized waters and 2~8 parts in terms of mass parts；Lotion includes: 20~40 parts of aqueous acrylic modified epoxy resin, 10~20 parts of Blocked Isocyanate Curing Agents, 2.5~5 parts of environmentally friendly auxiliary agents, 1~5 part of pH adjusting agent, 0.5~1 part of polypropylene glycol ether and 40~50 parts of deionized waters in terms of mass parts.Electrophoretic coating settling stability is good, drying temperature is low, corner covering power, weatherability, wearability and good corrosion resistance.
Description
Technical field
The present invention relates to sealing wax technical fields more particularly to a kind of aqueous dual-component electrophoretic coating and preparation method thereof.
Background technique
Currently, China's major part engineering silk screen still uses powder spray and powder to soak plastic coating, both processing methods
Excellent combination property, application property are good.But higher drying temperature is needed, the consumption energy is more, and it is poor to work at the same time environment, powder
Dirt is serious, is easy to cause pneumoconiosis problem.And silk screen can be very good to solve problem above with electrophoretic painting, but existing for work
The electrophoretic coating of journey silk screen coating there are problems that being easy precipitating, and after coating, often will appear and need higher dry temperature
It spends, the problem that sharp edge covers poor performance, weatherability, wearability and anti-corrosive properties are undesirable.
Summary of the invention
The purpose of the present invention is to provide a kind of aqueous dual-component electrophoretic coatings, easy to solve electrophoretic coating in the prior art
It precipitates, higher drying temperature, sharp edge is needed to cover the problem of poor performance, weatherability, wearability and anti-corrosive properties difference.
The object of the invention is also to provide a kind of preparation methods of aqueous dual-component electrophoretic coating.
To achieve the above object, the present invention provides a kind of aqueous dual-component electrophoretic coating, including mass ratio is 1:3~6:4
~7 mill base, lotion and deionized water；
The mill base includes the component of following mass parts: 15~30 parts of water based acrylic resin, 10~30 parts
Amino-modified epoxy resin, 5~20 parts of Blocked Isocyanate Curing Agents, 0.1~0.2 part of pH adjusting agent, 5~10 parts
Kaolin, 3~10 parts of pigment, 3~8 parts of ptfe micropowder, 0.1~1 part of microgel, 10~35 parts of deionization
Water and 2~8 parts of environmentally friendly auxiliary agent；
The lotion includes the component of following mass parts: 20~40 parts of aqueous acrylic modified epoxy resin, 10~20
Part Blocked Isocyanate Curing Agents, 2.5~5 parts of environmentally friendly auxiliary agent, 1~5 part of pH adjusting agent, poly- the third the two of 0.5~1 part
Alcohol ether and 40~50 parts of deionized water.
Wherein, the hydroxyl value of the water based acrylic resin is 1~2%.
Preferably, the amino-modified epoxy resin is amino modified macro prosperous 128 epoxy resin of electronics, amino modified
One or both of 901 epoxy resin and 904 amino modified epoxy resin.
Preferably, the deblocking temperature of the Blocked Isocyanate Curing Agents is 130~150 DEG C.
Preferably, include coalescing agent in the environmentally friendly auxiliary agent, the coalescing agent be propylene glycol phenylate, ethylene glycol oneself
One or more of ether, propylene glycol monomethyl ether, sec-butyl alcohol, butyl and diethylene glycol ether.
Preferably, the kaolin is Shanxi gold space HP-90A and/or HP-90B.
Preferably, the pH adjusting agent is one or more of acetic acid, lactic acid, nitric acid, sulfuric acid and hydrochloric acid.
Preferably, the polypropylene glycol ether is PPG2000 and/or PPG4000.
Preferably, the microgel is acroleic acid microgel and/or epoxy microgel, and the microgel is normal using this field
The preparation of rule technology.
To achieve the above object, the present invention also provides a kind of preparation method of aqueous dual-component electrophoretic coating, including it is following
Step:
Water based acrylic resin, amino-modified epoxy tree is added according to raw material proportioning described in mill base part in step a
Rouge and Blocked Isocyanate Curing Agents under 200~400r/min revolving speed, stir 25~35min, mixture 1 are made, then exists
PH adjusting agent, kaolin, pigment, ptfe micropowder, microgel, deionized water and environmentally friendly auxiliary agent are added in mixture 1, so
10~20min is stirred with the revolving speed of 800~1200r/min afterwards, mill base is made；
Aqueous acrylic modified epoxy resin, enclosed type isocyanide is added according to raw material proportioning described in emulsion fraction in step b
Acid esters curing agent, environmentally friendly auxiliary agent, pH adjusting agent and polypropylene glycol ether stir 5~15min, system under 900~1100r/min revolving speed
Mixture 2 is obtained, then mixture 2 is add to deionized water under the revolving speed of 900~1000r/min and is emulsified, is made
Lotion；And
Lotion obtained in mill base and step b obtained in deionized water, step a is uniformly mixed by step c,
Electrophoretic coating is made.
Preferably, in step a, pH adjusting agent, kaolin, pigment, ptfe micropowder, micro- is added in mixture 1
Stir 3 when gel, deionized water and environmentally friendly auxiliary agent, after each component is separately added into and is added under 200~400r/min revolving speed~
5min。
The beneficial effects of the present invention are:
Technical solution of the present invention uses water based acrylic resin, amino-modified epoxy resin, enclosed type simultaneously
Isocyanate curing agent and ptfe micropowder, obtained electrophoretic coating are water-base resin system, VOC≤30g/L, more ring
It protects, and settling stability is good, drying temperature is low, there is good corner covering power, weatherability, wearability and corrosion resistance performance
It is excellent, the coating quality that a coating reaches bottom surface unification may be implemented.
Specific embodiment
In order to which technical problems, technical solutions and advantages to be solved are more clearly understood, tie below
Embodiment is closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used to solve
The present invention is released, is not intended to limit the present invention.
A kind of aqueous dual-component electrophoretic coating is mill base, lotion and the deionized water of 1:3~6:4~7 including mass ratio；
The mill base includes the component of following mass parts: 15~30 parts of water based acrylic resin, 10~30 parts
Amino-modified epoxy resin, 5~20 parts of Blocked Isocyanate Curing Agents, 0.1~0.2 part of pH adjusting agent, 5~10 parts
Kaolin, 3~10 parts of pigment, 3~8 parts of ptfe micropowder, 0.1~1 part of microgel, 10~35 parts of deionization
Water and 2~8 parts of environmentally friendly auxiliary agent；
The lotion includes the component of following mass parts: 20~40 parts of aqueous acrylic modified epoxy resin, 10~20
Part Blocked Isocyanate Curing Agents, 2.5~5 parts of environmentally friendly auxiliary agent, 1~5 part of pH adjusting agent, poly- the third the two of 0.5~1 part
Alcohol ether and 40~50 parts of deionized water.The electrophoretic coating includes water based acrylic resin, amino-modified epoxy tree simultaneously
Rouge, Blocked Isocyanate Curing Agents and ptfe micropowder can be very good the settling stability for improving coating, and same
When coating can be made to have drying temperature low, good corner covering power, weatherability, the performance of wearability and corrosion resistance.
Wherein, the hydroxyl value of water based acrylic resin is 1~2%.If hydroxyl value is less than 1%, the crosslinking curing of coating
Performance is poor, if hydroxyl value is higher than 2%, coating is unstable, is easy precipitating.
The amino-modified epoxy resin is amino modified macro prosperous 128 epoxy resin of electronics, 901 amino modified epoxies
One or both of resin and 904 amino modified epoxy resin, the amine value of amino-modified epoxy resin are 40~60.It selects
The comprehensive performance of these types of epoxy resin, coating is more preferable, especially anti-corrosive properties.Amino-modified epoxy resin the preparation method comprises the following steps:
At 60~90 DEG C, diethylamine or diethanol amine are added in epoxy resin, are stirred to react 1 under 150~300r/min revolving speed
Hour.
The deblocking temperature of the Blocked Isocyanate Curing Agents is 130~150 DEG C, can substantially reduce the film forming of coating
Solidification temperature facilitates energy-saving and emission-reduction.
It include coalescing agent in the environmental protection auxiliary agent, the coalescing agent is propylene glycol phenylate, glycol hexyl ether, propylene glycol
One or more of methyl ether, sec-butyl alcohol, butyl and diethylene glycol ether can preferably improve paint film appearance.
The kaolin is Shanxi gold space HP-90A and/or HP-90B, low, with high purity, easy grinding, grinding with conductivity
Fineness is low, good dispersion, suspension are good, good chemical stability, and the sedimentation stability of electrophoretic coating can be improved, extend electricity
The service life of swimming tank liquor, improves the salt fog resistance of paint film, improves paint film planarization, compactness and uniformity etc..
The pH adjusting agent is one or more of acetic acid, lactic acid, nitric acid, sulfuric acid and hydrochloric acid, can increase coating
Stability.
The polypropylene glycol ether is PPG2000 and/or PPG4000, and lubrication, the anti-bubble, heat-resisting resistance to jelly of lotion can be improved
Etc. performances.
The microgel is acroleic acid microgel and/or epoxy microgel, can preferably improve paint film corner covering power,
Increase edge anticorrosive property simultaneously.
Amino-modified epoxy resin has excellent anti-corrosive properties in the technical program, and Hydroxylated acrylic resin has good
The sharp edge anticorrosive property of coating can be improved in weatherability and adhesive force, microgel, and ptfe micropowder improves the wear-resisting of paint film
Property, while being used cooperatively with Blocked Isocyanate Curing Agents, obtained final products have excellent sharp edge covering, well
Weatherability, wearability and anti-corrosive properties.
The present invention also provides a kind of preparation methods of aqueous dual-component electrophoretic coating, comprising the following steps:
Water based acrylic resin, amino-modified epoxy tree is added according to raw material proportioning described in mill base part in step a
Rouge and Blocked Isocyanate Curing Agents under 200~400r/min revolving speed, stir 25~35min, mixture 1 are made, then exists
PH adjusting agent, kaolin, pigment, ptfe micropowder, microgel, deionized water and environmentally friendly auxiliary agent are added in mixture 1, so
10~20min is stirred with the revolving speed of 800~1200r/min afterwards, mill base is made；
Aqueous acrylic modified epoxy resin, enclosed type isocyanide is added according to raw material proportioning described in emulsion fraction in step b
Acid esters curing agent, environmentally friendly auxiliary agent, pH adjusting agent and polypropylene glycol ether stir 5~15min, system under 900~1100r/min revolving speed
Mixture 2 is obtained, then mixture 2 is add to deionized water under the revolving speed of 900~1000r/min and is emulsified, is made
Lotion；And
Lotion obtained in mill base and step b obtained in deionized water, step a is uniformly mixed by step c,
Electrophoretic coating is made.
In step a, pH adjusting agent is added in mixture 1, kaolin, pigment, ptfe micropowder, microgel, goes
When ionized water and environmentally friendly auxiliary agent, 3~5min is stirred after each component is separately added into and is added under 200~400r/min revolving speed.Mixed
It closes in object 1 and other groups of timesharing is added, each component is separately added into, and is stirred evenly after being added and added other component, can be made most
Whole product is more stable, and painting effect is more preferable.
In emulsion preparation process, resin compound is added drop-wise in deionized water and is emulsified, kept emulsification more thorough, fill
Point, help to improve emulsifying power.
Embodiment 1
Prepare acroleic acid microgel: by 50g isobornyl acrylate, 40g n-butyl acrylate, the contracting of 6.36g bis- 3 the third two
Alcohol double methacrylate, 1.77g S- dodecyl-S '-(α, α '-dimethyl-α "-acetate) trithiocarbonate, 0.34g
Photoinitiator 2,4,6- trimethylbenzoy-dipheny phosphine oxide, 150g toluene are added sequentially in reaction kettle, lead to nitrogen row
Oxygen 1h.Use long wave ultraviolet-visible radiation as initiation source, under nitrogen protection, reacts 5h, monomer total conversion is greater than
95%.Then 40.5g acrylic acid (2- perfluoro hexyl ethyl) ester and 0.68g 2,4,6- trimethylbenzoy-dipheny is added
Phosphine oxide continues light initiation polymerization, reacts 3h, acroleic acid microgel is prepared.
Electrophoretic coating preparation:
The amino modified of the water based acrylic resin, 10 mass parts that the hydroxyl value of 15 mass parts is 1% is added in step a
The blocked isocyanate that the deblocking temperature of macro 128 epoxy resin of prosperous electronics (amine value 40) and 5 mass parts is 130 DEG C solidifies
Agent under 200~400r/min revolving speed, stirs 25~35min, mixture 1 is made, 0.1 mass parts are then added in mixture 1
PH adjusting agent acetic acid, the kaolin HP-90A of 5 mass parts, the pigment of 3 mass parts, 3 mass parts ptfe micropowder (Shen
The PTFE micro mist A01 of the auspicious micropowder material factory in the sky Yang Shi), the acroleic acid microgel of 0.1 mass parts, 10 mass parts deionized water
With the filming aid propylene glycol phenyl ether of 2 mass parts, 10~20min is then stirred with the revolving speed of 800~1200r/min, color is made
Slurry；
Step b, the aqueous acrylic modified epoxy resin of addition of 20 mass parts, the deblocking temperature of 10 mass parts are 130 DEG C
Blocked Isocyanate Curing Agents, the filming aid propylene glycol phenyl ether of 2.5 mass parts, the pH adjusting agent lactic acid of 1 mass parts and
5~15min is stirred under polypropylene glycol ether PPG2000,900~1100r/min revolving speed of 0.5 mass parts, mixture 2 is made, so
Mixture 2 is added in the deionized water of 40 mass parts under the revolving speed of 900~1000r/min afterwards and is emulsified, cream is made
Liquid；And
Lotion obtained in mill base and step b obtained in deionized water, step a is uniformly mixed by step c,
Electrophoretic coating is made, the mass ratio of mill base, lotion and deionized water is 1:3:4.
Embodiment 2
It prepares epoxy microgel: 50g propylene glycol monomethyl ether and 35g polyamide being added in reaction kettle, under stirring
80 DEG C are warming up to, 15g epoxy silane coupling agent KH560 is then added, maintaining reaction temperature reacts 2h, is then cooled to 30 DEG C,
Add in 10% acetic acid of 3g and 30min, epoxy microgel is prepared.
Electrophoretic coating preparation:
The amino modified of the water based acrylic resin, 30 mass parts that the hydroxyl value of 30 mass parts is 2% is added in step a
The blocked isocyanate that the deblocking temperature of macro 901 epoxy resin of prosperous electronics (amine value 50) and 20 mass parts is 150 DEG C solidifies
Agent under 200~400r/min revolving speed, stirs 25~35min, mixture 1 is made, 0.2 mass parts are then added in mixture 1
PH adjusting agent nitric acid, the kaolin HP-90B of 10 mass parts, the pigment of 10 mass parts, 8 mass parts ptfe micropowder
The epoxy microgel of (the PTFE micro mist A01 of the auspicious micropowder material factory in the Shenyang City sky), 1 mass parts is (refering to patent
In CN105331270A prepared by 1 the method for embodiment), the coalescing agent second two of the deionized water of 35 mass parts and 8 mass parts
Then alcohol hexyl ether stirs 10~20min with the revolving speed of 800~1200r/min, mill base is made；
Step b, the aqueous acrylic modified epoxy resin of addition of 40 mass parts, the deblocking temperature of 20 mass parts are 150 DEG C
Blocked Isocyanate Curing Agents, the coalescing agent butyls of 5 mass parts, 5 mass parts pH adjusting agent sulfuric acid and 1
5~15min is stirred under polypropylene glycol ether PPG4000,900~1100r/min revolving speed of mass parts, and mixture 2 is made, then exists
Mixture 2 is added in the deionized water of 50 mass parts under the revolving speed of 900~1000r/min and is emulsified, lotion is made；With
And
Lotion obtained in mill base and step b obtained in deionized water, step a is uniformly mixed by step c,
Electrophoretic coating is made, the mass ratio of mill base, lotion and deionized water is 1:6:7.
Embodiment 3
Step a, the amino that water based acrylic resin, 20 mass parts that the hydroxyl value of 25 mass parts is 1.5% is added change
Property macro prosperous 904 epoxy resin of electronics (amine value 60) and 15 mass parts deblocking temperature be 140 DEG C blocked isocyanate it is solid
Agent under 200~400r/min revolving speed, stirs 25~35min, mixture 1 is made, 0.2 mass is then added in mixture 1
Part pH adjusting agent sulfuric acid, the kaolin HP-90B of 7 mass parts, the pigment of 6 mass parts, 5 mass parts ptfe micropowder
Epoxy microgel (the same embodiment of preparation method of (the PTFE micro mist A01 of the auspicious micropowder material factory in the Shenyang City sky), 0.5 mass parts
2) then, the coalescing agent sec-butyl alcohol of the deionized water of 20 mass parts and 5 mass parts is stirred with the revolving speed of 800~1200r/min
Mill base is made in 10~20min；
Step b, the aqueous acrylic modified epoxy resin of addition of 30 mass parts, the deblocking temperature of 15 mass parts are 140 DEG C
Blocked Isocyanate Curing Agents, the coalescing agent diethylene glycol ethers of 3.5 mass parts, 3 mass parts pH adjusting agent sulfuric acid
With 5~15min of stirring under polypropylene glycol ether PPG4000,900~1100r/min revolving speed of 0.7 mass parts, mixture 2 is made,
Then mixture 2 is added in the deionized water of 45 mass parts under the revolving speed of 900~1000r/min and is emulsified, is made
Lotion；And
Lotion obtained in mill base and step b obtained in deionized water, step a is uniformly mixed by step c,
Electrophoretic coating is made, the mass ratio of mill base, lotion and deionized water is 1:4:5.
Embodiment 4
The amino modified of the water based acrylic resin, 10 mass parts that the hydroxyl value of 15 mass parts is 1% is added in step a
The blocked isocyanate that the deblocking temperature of macro 128 epoxy resin of prosperous electronics (amine value 40) and 5 mass parts is 130 DEG C solidifies
Agent under 200~400r/min revolving speed, stirs 25~35min, mixture 1 is made, 0.1 mass parts are then added in mixture 1
PH adjusting agent acetic acid, the kaolin (Shanxi gold space HA-90T) of 5 mass parts, the pigment of 3 mass parts, 3 mass parts polytetrafluoro
Acroleic acid microgel (the preparation side of ethylene micro mist (the PTFE micro mist A01 of the auspicious micropowder material factory in the Shenyang City sky), 0.1 mass parts
Method is with embodiment 1), the filming aid propylene glycol phenyl ether of the deionized water of 10 mass parts and 2 mass parts, then with 800~
The revolving speed of 1200r/min stirs 10~20min, and mill base is made；
Step b, the aqueous acrylic modified epoxy resin of addition of 20 mass parts, the deblocking temperature of 10 mass parts are 130 DEG C
Blocked Isocyanate Curing Agents, the filming aid propylene glycol phenyl ether of 2.5 mass parts, the pH adjusting agent lactic acid of 1 mass parts and
5~15min is stirred under polypropylene glycol ether PPG2000,900~1100r/min revolving speed of 0.5 mass parts, mixture 2 is made, so
Mixture 2 is added in the deionized water of 40 mass parts under the revolving speed of 900~1000r/min afterwards and is emulsified, cream is made
Liquid；And
Lotion obtained in mill base and step b obtained in deionized water, step a is uniformly mixed by step c,
Electrophoretic coating is made, the mass ratio of mill base, lotion and deionized water is 1:3:4.
Comparative example 1
The amino modified of the water based acrylic resin, 10 mass parts that the hydroxyl value of 15 mass parts is 5% is added in step a
The blocked isocyanate that the deblocking temperature of macro 128 epoxy resin of prosperous electronics (amine value 40) and 5 mass parts is 130 DEG C solidifies
Agent under 200~400r/min revolving speed, stirs 25~35min, mixture 1 is made, 0.1 mass parts are then added in mixture 1
PH adjusting agent acetic acid, the kaolin HP-90A of 5 mass parts, the pigment of 3 mass parts, 3 mass parts ptfe micropowder (Shen
The PTFE micro mist A01 of the auspicious micropowder material factory in the sky Yang Shi), acroleic acid microgel (the same embodiments of preparation method of 0.1 mass parts
1), the filming aid propylene glycol phenyl ether of the deionized water of 10 mass parts and 2 mass parts, then with the revolving speed of 800~1200r/min
10~20min is stirred, mill base is made；
Step b, the aqueous acrylic modified epoxy resin of addition of 20 mass parts, the deblocking temperature of 10 mass parts are 130 DEG C
Blocked Isocyanate Curing Agents, the filming aid propylene glycol phenyl ether of 2.5 mass parts, the pH adjusting agent lactic acid of 1 mass parts and
5~15min is stirred under polypropylene glycol ether PPG2000,900~1100r/min revolving speed of 0.5 mass parts, mixture 2 is made, so
Mixture 2 is added in the deionized water of 40 mass parts under the revolving speed of 900~1000r/min afterwards and is emulsified, cream is made
Liquid；And
Lotion obtained in mill base and step b obtained in deionized water, step a is uniformly mixed by step c,
Electrophoretic coating is made, the mass ratio of mill base, lotion and deionized water is 1:3:4.
Comparative example 2
The macro prosperous electronics of water based acrylic resin, 10 mass parts that the hydroxyl value of 15 mass parts is 1% is added in step a
The Blocked Isocyanate Curing Agents that the deblocking temperature of 128 epoxy resin (amine value 40) and 5 mass parts is 130 DEG C, 200~
Under 400r/min revolving speed, 25~35min is stirred, mixture 1 is made, the pH that 0.1 mass parts are then added in mixture 1 is adjusted
Agent acetic acid, the kaolin HP-90A of 5 mass parts, the pigment of 3 mass parts, the polyorganosiloxane resins of 3 mass parts, 0.1 mass parts
The coalescing agent propylene glycol phenyl of acroleic acid microgel (the preparation method is the same as that of Example 1), the deionized water of 10 mass parts and 2 mass parts
Then ether stirs 10~20min with the revolving speed of 800~1200r/min, mill base is made；
Step b, the aqueous acrylic modified epoxy resin of addition of 20 mass parts, the deblocking temperature of 10 mass parts are 130 DEG C
Blocked Isocyanate Curing Agents, the filming aid propylene glycol phenyl ether of 2.5 mass parts, the pH adjusting agent lactic acid of 1 mass parts and
5~15min is stirred under polypropylene glycol ether PPG2000,900~1100r/min revolving speed of 0.5 mass parts, mixture 2 is made, so
Mixture 2 is added in the deionized water of 40 mass parts under the revolving speed of 900~1000r/min afterwards and is emulsified, cream is made
Liquid；And
Lotion obtained in mill base and step b obtained in deionized water, step a is uniformly mixed by step c,
Electrophoretic coating is made, the mass ratio of mill base, lotion and deionized water is 1:3:4.
Table 1 is the performance measurement of electrophoretic coating obtained by above-described embodiment 1~4 and comparative example 1,2.
Table 1
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of aqueous dual-component electrophoretic coating, which is characterized in that including mass ratio be the mill bases of 1:3~6:4~7, lotion and
Deionized water；
The mill base includes the component of following mass parts: 15~30 parts of water based acrylic resin, 10~30 parts of amino
Modified epoxy, 5~20 parts of Blocked Isocyanate Curing Agents, 0.1~0.2 part of pH adjusting agent, 5~10 parts of kaolinite
Soil, 3~10 parts of pigment, 3~8 parts of ptfe micropowder, 0.1~1 part of microgel, 10~35 parts of deionized water and
2~8 parts of environmentally friendly auxiliary agent；
The lotion includes the component of following mass parts: 20~40 parts of aqueous acrylic modified epoxy resin, 10~20 parts
Blocked Isocyanate Curing Agents, 2.5~5 parts of environmentally friendly auxiliary agent, 1~5 part of pH adjusting agent, 0.5~1 part of polypropylene glycol ether
With 40~50 parts of deionized water.
Wherein, the hydroxyl value of the water based acrylic resin is 1~2%.
2. aqueous dual-component electrophoretic coating according to claim 1, which is characterized in that the amino-modified epoxy resin is
In amino modified macro prosperous 128 epoxy resin of electronics, 901 amino modified epoxy resin and 904 amino modified epoxy resin
One or two.
3. aqueous dual-component electrophoretic coating according to claim 1, which is characterized in that the blocked isocyanate solidification
The deblocking temperature of agent is 130~150 DEG C.
4. aqueous dual-component electrophoretic coating according to claim 1, which is characterized in that include film forming in the environmental protection auxiliary agent
Auxiliary agent, the coalescing agent are propylene glycol phenylate, glycol hexyl ether, propylene glycol monomethyl ether, sec-butyl alcohol, butyl and diethyl
One or more of glycol ether.
5. aqueous dual-component electrophoretic coating according to claim 1, which is characterized in that the kaolin is Shanxi gold space
HP-90A and/or HP-90B.
6. aqueous dual-component electrophoretic coating according to claim 1, which is characterized in that the pH adjusting agent is acetic acid, cream
One or more of acid, nitric acid, sulfuric acid and hydrochloric acid.
7. aqueous dual-component electrophoretic coating according to claim 1, which is characterized in that the polypropylene glycol ether is
PPG2000 and/or PPG4000.
8. aqueous dual-component electrophoretic coating according to claim 1, which is characterized in that the microgel is that acrylic acid is micro- solidifying
Glue and/or epoxy microgel.
9. the preparation method of aqueous dual-component electrophoretic coating according to any one of claims 1 to 8, which is characterized in that including
Following steps:
Step a, according to raw material proportioning described in mill base part, be added water based acrylic resin, amino-modified epoxy resin and
Blocked Isocyanate Curing Agents under 200~400r/min revolving speed, stir 25~35min, mixture 1 are made, is then mixing
PH adjusting agent, kaolin, pigment, ptfe micropowder, microgel, deionized water and environmentally friendly auxiliary agent are added in object 1, then with
The revolving speed of 800~1200r/min stirs 10~20min, and mill base is made；
Aqueous acrylic modified epoxy resin, blocked isocyanate is added according to raw material proportioning described in emulsion fraction in step b
Curing agent, environmentally friendly auxiliary agent, pH adjusting agent and polypropylene glycol ether stir 5~15min under 900~1100r/min revolving speed, are made mixed
Object 2 is closed, then mixture 2 is add to deionized water under the revolving speed of 900~1000r/min and is emulsified, lotion is made；
And
Lotion obtained in mill base and step b obtained in deionized water, step a is uniformly mixed by step c, is made
Electrophoretic coating.
10. the preparation method of aqueous dual-component electrophoretic coating according to claim 9, which is characterized in that in step a,
When pH adjusting agent, kaolin, pigment, ptfe micropowder, microgel, deionized water and environmentally friendly auxiliary agent being added in mixture 1,
3~5min is stirred after each component is separately added into and is added under 200~400r/min revolving speed.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114891412A (en) * | 2021-06-25 | 2022-08-12 | 江苏御镐智能制造有限公司 | Breakdown-resistant electrophoretic paint and application thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6214470B1 (en) * | 1998-12-21 | 2001-04-10 | Basf Corporation | Cathodic electrocoat composition |
| CN103687918A (en) * | 2011-07-13 | 2014-03-26 | 日产自动车株式会社 | Coating composition and method for forming coating film using same |
| CN106318001A (en) * | 2016-08-17 | 2017-01-11 | 浩力森涂料（上海）有限公司 | Electrophoretic paint with high weather resistance and better spring coverage and preparation method thereof |
| CN107337983A (en) * | 2016-08-07 | 2017-11-10 | 薛常刚 | A kind of bi-component cathode electrophoresis dope |
| CN107502130A (en) * | 2017-06-26 | 2017-12-22 | 河北晨阳工贸集团有限公司 | Electrophoretic coating and its preparation method and application |
| CN108690470A (en) * | 2018-04-03 | 2018-10-23 | 河北晨阳工贸集团有限公司 | Unify cathode electrophoresis dope and preparation method thereof in a kind of bottom surface for fire-fighting equipment |
-
2019
- 2019-05-30 CN CN201910465274.0A patent/CN110283491A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6214470B1 (en) * | 1998-12-21 | 2001-04-10 | Basf Corporation | Cathodic electrocoat composition |
| CN103687918A (en) * | 2011-07-13 | 2014-03-26 | 日产自动车株式会社 | Coating composition and method for forming coating film using same |
| CN107337983A (en) * | 2016-08-07 | 2017-11-10 | 薛常刚 | A kind of bi-component cathode electrophoresis dope |
| CN106318001A (en) * | 2016-08-17 | 2017-01-11 | 浩力森涂料（上海）有限公司 | Electrophoretic paint with high weather resistance and better spring coverage and preparation method thereof |
| CN107502130A (en) * | 2017-06-26 | 2017-12-22 | 河北晨阳工贸集团有限公司 | Electrophoretic coating and its preparation method and application |
| CN108690470A (en) * | 2018-04-03 | 2018-10-23 | 河北晨阳工贸集团有限公司 | Unify cathode electrophoresis dope and preparation method thereof in a kind of bottom surface for fire-fighting equipment |
Non-Patent Citations (2)
| Title |
|---|
| 于俊元等: ""聚四氟乙烯改性环氧阴极电泳涂料的研究"", 《涂料工业》 * |
| 童身毅: ""封闭型异氰酸酯在水性涂料中的应用(I)"", 《现代涂料与涂装》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114891412A (en) * | 2021-06-25 | 2022-08-12 | 江苏御镐智能制造有限公司 | Breakdown-resistant electrophoretic paint and application thereof |
| CN114891412B (en) * | 2021-06-25 | 2024-01-12 | 江苏御镐智能制造有限公司 | Breakdown-resistant electrophoretic paint and application thereof |
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