CN109913083A - Aqueous crackle coating of removing and preparation method thereof may be selected - Google Patents
Aqueous crackle coating of removing and preparation method thereof may be selected Download PDFInfo
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- CN109913083A CN109913083A CN201910038582.5A CN201910038582A CN109913083A CN 109913083 A CN109913083 A CN 109913083A CN 201910038582 A CN201910038582 A CN 201910038582A CN 109913083 A CN109913083 A CN 109913083A
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Abstract
There is provided one kind may be selected aqueous crackle coating of removing and preparation method thereof, which includes water-base epoxy priming paint and aqueous fluorine-containing finishing coat composition: water-base epoxy priming paint includes the B component of the component A that the epoxy resin latex of 50~70 mass parts is made into and 5~12 mass parts；The aqueous fluorine-containing finishing coat includes the first component and the second component, wherein first component includes the water-based hydroxyl acrylic acid dispersion of 60~70 mass parts, and second component includes the isocyanate curing agent of 10~30 mass parts.The optional aqueous crackle coating of removing of the present invention has the advantages that low VOC value, UV resistant irradiation, chemical-resistance, antibacterial, automatically cleaning and release anion.
Description
Technical field
The present invention relates generally to paint fields, and particularly, are related to that the aqueous crackle coating of removing and its preparation side may be selected
Method.
Background technique
Crackle paint is a kind of artistic coating for having special decorative effect.Beautiful crack pattern is formed after covering with paint, is split
Line variation multiplicity, in picturesque disorder, great art stereo aesthetic feeling.Crackle paint is usually used in toy, craftwork, building decoration and family wear
Decorations, are particularly suitable for simulated decorative modelled after an antique.
In recent years, product and house decoration personalization, diversified pursuit, aqueous crackle paint are made with consumer
With also more frequently.Still based on traditional solvent type crackle paint, solvent type crackle paint was using crackle paint currently on the market
1. are had the following disadvantages: in journey because of crackle paint film embrittlement made by its intrinsic film forming matter, poor adhesive force need to be in crackle
One layer of varnish is coated again as protection in paint surface；2. having been used during preparing solvent type crackle paint a large amount of organic molten
Agent can release VOC in construction, and construction tool will also be cleaned using organic solvent, not only pollute environment, but also to construction personnel
Very big murder by poisoning is caused with the health of consumer.
Therefore, develop a environmentally friendly aqueous crackle coating of optional removing, be those skilled in the art urgently
The technical issues of solution.
Summary of the invention
The present invention provides a kind of optional aqueous crackle coating of removing, wherein the aqueous crackle coating includes water-base epoxy
Priming paint and aqueous fluorine-containing finishing coat composition:
The water-base epoxy priming paint includes the component A of the epoxy resin containing 50~70 mass parts and the B of 5~12 mass parts
Component, the component A and the B component are mixed according to mass ratio (5~10)/1；
The aqueous fluorine-containing finishing coat includes the first component and the second component, wherein first component includes 60~70 matter
The water-based hydroxyl acrylic acid dispersion of part is measured, second component includes the isocyanate curing agent of 10~30 mass parts, described
First component and second component are mixed according to mass ratio (5~7)/1.
In some embodiments, in the aqueous crackle coating of optional removing, according to mass fraction meter, the A
Component further includes the lauryl alcohol polyethylene glycol oxide phosphate of 10~30 mass parts.
In some embodiments, in the aqueous crackle coating of optional removing, the lauryl alcohol polyethylene glycol oxide phosphorus
It according to molar ratio is 1/1 that acid esters, which is by ethoxylated dodecyl alcohol and phosphorus pentoxide, and esterification temperature is 75 DEG C, esterification time 5h
It generates.
In some embodiments, in the aqueous crackle coating of optional removing, according to mass fraction meter, this is aqueous
Epoxy primer further includes the dispersing agent of 0.1~0.5 mass parts, the first defoaming agent of 0.1~0.5 mass parts, 1~5 mass parts
First coalescing agent, the first base material wetting agent of 0.3~0.5 mass parts, the deionized water of 5~10 mass parts, 10~20 mass
Part talcum powder, the barium sulfate of 0~10 mass parts, the pigment of 0~10 mass parts, 0.2~2 mass parts fumed silica,
First thickener of the curing agent of 10~30 mass parts and 0.5~1.0 mass parts；The aqueous fluorine-containing finishing coat further includes 30~50 matter
Measure the water-based hydroxyl acrylic emulsion of part, the curing agent of 5~20 mass parts, the cosolvents of 2~5 mass parts, 1~5 mass parts
Organic silicone powder, the nano aluminium oxide of 1~5 mass parts, the crackle auxiliary agent of 0.5~2 mass parts, the nanometer of 0.1~3 mass parts are negative
Ion powder, 1~10 mass parts pigment, the pH adjusting agent of 0.1~0.2 mass parts, the second defoaming agent of 0.1~0.2 mass parts, 2
The second substrate wetting of second coalescing agent of~5 mass parts, the dispersing agent of 0.3~0.5 mass parts, 0.3~0.5 mass parts
Agent, the deionized water of 5~10 mass parts, 0.5~1.0 mass parts the second thickener.
In some embodiments, in the aqueous crackle coating of optional removing, the dispersing agent is polyester modification
Polyphosphoric acid esters dispersing agent；The coalescing agent is propylene glycol monomethyl ether, propandiol butyl ether, dipropylene glycol methyl ether and dipropylene glycol fourth
One of ether is a variety of；First defoaming agent is that phosphoric acid lipid hydrophobicity defoams foam inhibitor；The first base material wetting agent
For the wetting agent of Siloxane-Oxyalkylene Copolymers class；First thickener is polyurethane-type thickener.
In some embodiments, in the aqueous crackle coating of optional removing, the talcum powder is 1250 mesh；Institute
Stating barium sulfate is 1500 mesh.
In some embodiments, in the aqueous crackle coating of optional removing, the isocyanate curing agent by
Polyethylene glycol mixing monoether and HDI trimer are prepared；Mole of the polyethylene glycol mixing monoether and the HDI trimer
Than for (4~6)/1.
In some embodiments, in the aqueous crackle coating of optional removing, the HDI trimer is poly- second two
Alcohol monomethyl ether is modified HDI trimer.
Another aspect of the present invention also provides a kind of preparation method of optional aqueous crackle coating of removing comprising following step
It is rapid:
The preparation method of water-base epoxy priming paint:
Step 1, in advance by 1/2 water, 1/2 pH adjusting agent, dispersing agent, 1/2 defoaming agent, barium sulfate, talcum powder,
Pigment and fumed silica are mixed, and stir 15~20min, 40 μ of fineness of grind < with the speed of 1000~1500r/min
m
Step 2, under the revolving speed stirring condition of 500~600r/min, successively added into reaction kettle aqueous epoxy emulsion,
2/3 coalescing agent, 1/2 pH adjusting agent, 1/2 defoaming agent, substrate wetting agents, under the revolving speed of 1000~1500r/min
Stir 10~20min；
Mixture prepared by the step 1 is added in the reaction kettle of the step 2 by step 3,600~
10~20min is stirred under the revolving speed of 800r/min；Thickener is added, stirs 10~20min under the revolving speed of 500~600r/min,
Viscosity is adjusted to qualification, obtains the component A that epoxy resin latex is made into；
Step 4 successively adds under the speed conditions of 400~500r/min curing agent, 1/3 in another reaction kettle
Coalescing agent, 1/2 deionized water, and the speed of 1000~1500r/min stir 15~30min, obtain B component；
In use, A, B component are used in mixed way according to mass ratio (5~10)/1；
The preparation method of aqueous fluorine-containing finishing coat:
Step 1, in advance by 1/2 deionized water, 1/2 pH adjusting agent, dispersing agent, 1/2 defoaming agent, nano oxidized
Aluminium, organic silicone powder, negative ion powder he pigment are mixed, using grinder by fineness≤20 μm；
Step 2, under the speed conditions of 500~700r/min, into reaction kettle add water-based hydroxyl acrylic emulsion,
Coalescing agent, 1/2 pH adjusting agent, 1/2 defoaming agent, crackle auxiliary agent he substrate wetting agents, 1000~1500r/min's turns
Speed is lower to stir 10~15min；
Mixture prepared by the step 1 is added in the reaction kettle of the step 2 by step 3,600~
The revolving speed of 800r/min stirs 10~20min；
Step 4, thickener is added in Xiang Suoshu reaction kettle, and the revolving speed of 500~700r/min stirs 10~20min, adjustment
Viscosity is to qualification, as the first component；
Isocyanate curing agent is dissolved in cosolvent under drying condition, is sealed as the second component by step 5；
In use, the first component and the second component are mixed according to mass ratio (5~7)/1.
In above scheme, in the preparation method of the aqueous crackle coating of optional removing, in water-base epoxy priming paint
In preparation process, between the step 2 and the step 3 further include:
Into the reaction kettle be added lauryl alcohol polyethylene glycol oxide phosphate potassium, 800r/min~1000r/min revolving speed into
Row dispersion stirring 5min~10min.
The utility model has the advantages that
In the optional aqueous crackle coating of removing of the present invention, crackle paint production is simple, and coating is convenient.After coating
Effect can be cracked and crack-type and adjustable.The aqueous crackle coating of optional removing is in spary process and painting
What is volatilized in layer solidification process is mostly water, almost pollution-free to environment, meets environmental requirement.
Specific embodiment
The existing various exemplary embodiment that the present invention will be described in detail, the detailed description are not considered as to limit of the invention
System, and it is understood as the more detailed description to certain aspects of the invention, characteristic and embodiment.
It should be understood that it is to describe special embodiment that heretofore described term, which is only, it is not intended to limit this hair
It is bright.In addition, for the numberical range in the present invention, it is thus understood that it is also specifically disclosed that every between the upper and lower bound of the range
A median.In in the median and any other statement value in any statement value or stated ranges or in the range
Between each of between value lesser range be also included in the present invention.These small range of upper and lower bounds can independently include
Or it excludes in range.
Unless otherwise stated, all technical and scientific terms used herein has the routine in field of the present invention
The normally understood identical meanings of technical staff.Although the present invention only describes preferred method and material, of the invention
Implement or also can be used and similar or equivalent any method and material described herein in testing.The institute mentioned in this specification
There is document to be incorporated by reference into, to disclosure and description method relevant to the document and/or material.It is incorporated to any
When document conflicts, it is subject to the content of this specification.
Without departing substantially from the scope or spirit of the invention, the specific embodiment of description of the invention can be done more
Kind improvements and changes, this will be apparent to those skilled in the art.Other realities obtained by specification of the invention
Applying mode for technical personnel is apparent obtain.Present specification and embodiment are merely exemplary.
It is open term, i.e., about "comprising" used herein, " comprising ", " having ", " containing " etc.
Mean including but not limited to.
Heretofore described " mass parts " or " % " unless otherwise instructed, by mass.
The present invention provides a kind of optional aqueous crackle coating of removing, wherein the aqueous crackle coating includes water-base epoxy
Priming paint and aqueous fluorine-containing finishing coat composition:
The water-base epoxy priming paint includes the component A and 5~12 mass of the epoxy resin latex containing 50~70 mass parts
The B component of part, the component A and the B component are mixed according to mass ratio (5~10)/1；
The aqueous fluorine-containing finishing coat includes the first component and the second component, wherein first component includes 60~70 matter
The water-based hydroxyl acrylic acid dispersion of part is measured, second component includes the isocyanate curing agent of 10~30 mass parts, described
First component and second component are mixed according to mass ratio (5~7)/1.
In the optional aqueous crackle coating of removing of the present invention, using water-base epoxy priming paint, keep coating firmly attached
In substrate surface, then as needed, if it is desired to if reaching strippable short time crack effect, in water-base epoxy priming paint
After drying, spraying removing adjuvant water solution, after drying again, coating finish, finishing coat can reach the crack effect being easily peeled off；
If it is desired to not needing removing auxiliary agent if long-time use, directly upper finishing coat, finishing coat can firmly be attached on priming paint, reach
To prolonged crackle coating result.
In above scheme, the epoxy resin latex is the K-051 water-base epoxy of hundred occasion chemistry Science and Technology Ltd. of Shenyang
Resin emulsion, it is widely used, it has excellent performance, is the high-quality base-material of environment-friendly and high-performance water-base epoxy material.
In above scheme, the B component is curing agent, it is preferable that the B component is aqueous epoxy curing agent, at certain
In a little embodiments, the curing agent is the S-105S-105 of Shunde District, Foshan City Sheng Tu new material Science and Technology Ltd., the solidification
Agent is made using the method for polyamine addition, in addition to also having higher with excellent emulsion epoxy resin ability
Intensity and chemical-resistant.
In above scheme, according to mass fraction meter, the component A further includes the lauryl alcohol polyethylene glycol oxide of 10~30 mass parts
Phosphate.
Using ethoxylated dodecyl alcohol and phosphorus pentoxide as Material synthesis lauryl alcohol polyethylene glycol oxide phosphate.The laurel
It according to molar ratio is 1/1 that alcohol polyoxyethylene phosphate, which is by ethoxylated dodecyl alcohol and phosphorus pentoxide, esterification temperature 75
DEG C, esterification time 5h is generated.
Lauryl alcohol polyethylene glycol oxide phosphate is good with epoxy resin latex intermiscibility, while utilizing lauryl alcohol polyethylene glycol oxide phosphoric acid
Ester increases the content of phosphate, further increases this binding force for illustrating the aqueous crackle coating and matrix, and it is strong to improve paint film
Degree.
In above scheme, according to mass fraction meter, the water-base epoxy priming paint further include 0.1~0.5 mass parts dispersing agent,
First defoaming agent of 0.1~0.5 mass parts, the first coalescing agent of 1~5 mass parts, the first base material of 0.3~0.5 mass parts
Wetting agent, the deionized water of 5~10 mass parts, the talcum powder of 10~20 mass parts, the barium sulfate of 0~10 mass parts, 0~10 matter
Measure the pigment of part, the fumed silica of 0.2~2 mass parts, the curing agent of 10~30 mass parts and 0.5~1.0 mass parts
First thickener；
The dispersing agent is polyester modification polyphosphoric acid esters dispersing agent, such as the AFCONA-5010 of (angstrom husband's Kona) AFCONA,
AFCONA-5010 is the dispersant with high efficiency of inorganic particulate.
First defoaming agent is that phosphoric acid lipid hydrophobicity defoams foam inhibitor and/or organic silicon defoaming agent, in certain realities
It applies in example, phosphoric acid lipid hydrophobicity defoams foam inhibitor and organic silicon defoaming agent and mixes according to mass ratio 1/1, for example, phosphate ester
Class hydrophobicity defoams the 941PL that foam inhibitor is MOUSSEX company, for example, organic silicon defoaming agent is (BIC Corp) BYK's
BYK-028 or BYK024.
First coalescing agent is that the environmentally friendly cosolvent is propylene glycol monomethyl ether, propandiol butyl ether, dipropylene glycol methyl ether
One or more of with dipropylene；
The first base material wetting agent is the wetting agent of Siloxane-Oxyalkylene Copolymers class, such as the Tego- of (Digao) TEGO
100, which can play the role of slip agent, levelling agent, keep paint film plentiful.
1250 mesh of talcum powder, such as 1250 mesh talcum powder of the prosperous plastic cement auxiliary agent of Dongguan City Chang Pingzhen, talcum powder is piece
Layer structure, has good shield effectiveness, anti-settling effect and flexibility.
The barium sulfate is 1500 mesh, such as the double 1500 mesh barium sulfate for rising mining industry powder Co., Ltd of Shunde, sulphur
Chemical inertness is strong, stability is good, acid and alkali-resistance, hardness are moderate, high specific gravity, Gao Baidu, can absorb harm ray etc. because having for sour barium
Advantage is a kind of material with environment-friendly function.
The carbon black and the titanium dioxide are as pigment；In certain embodiments, carbon black is the MA100 of Mitsubishi Corporation of Japan
Carbon black, the titanium dioxide are rutile titanium dioxide, and such as the titanium white R706 of E.I.Du Pont Company, the titanium dioxide is with higher hard
Degree, density, dielectric constant and refractive index.
The fumed silica is the K200 of Guangzhou Kui Bang Chemical Co., Ltd., has good result of prevention.
First thickener is polyurethane-type thickener, such as the OS-6020 of Guangzhou hat will new material science and technology source factory, is increased
Add the mobility and levelling effect of coating.
The aqueous fluorine-containing finishing coat further includes that the water-based hydroxyl acrylic emulsions of 30~50 mass parts, 5~20 mass parts are consolidated
Agent, the cosolvent of 2~5 mass parts, the organic silicone powder of 1~5 mass parts, the nano aluminium oxide of 1~5 mass parts, 0.5~2
The crackle auxiliary agents of mass parts, the nanometer anion powder of 0.1~3 mass parts, 1~10 mass parts pigment, 0.1~0.2 mass parts
PH adjusting agent, the second defoaming agent of 0.1~0.2 mass parts, the second coalescing agent of 2~5 mass parts, 0.3~0.5 mass parts
Dispersing agent, the second substrate wetting agents of 0.3~0.5 mass parts, the deionized waters of 5~10 mass parts, 0.5~1.0 mass parts
Second thickener.
In above scheme, the water-based hydroxyl acrylic emulsion is ten thousand China2033, the water-based hydroxyl
Acrylic emulsion and isocyanate curing agent prepare water paint, have excellent performance and good appearance.
The isocyanate curing agent is (Bayhydur) 401-70 of Bayer, which is isophorone
Diisocyanate (IPDI) is hydrophilic modifying aliphatic polymeric isocyanate.
Second coalescing agent is the environmentally friendly ordor removing type coalescing agent AF and alcohol ester-12 coalescing agent of propylene glycol phenyl ethers
The mixture of composition, the mass ratio of the two are as follows: (1-2)/1.
The cosolvent is the propylene glycol methyl ether acetate of Dow chemical industry.
The organic silicone powder is polymethylsilsesquioxane, e.g., the BT-9273 silicone of Guangzhou Ba Tai Chemical Co., Ltd.
Powder.
The organic silicone powder is the height using true spherical structure polysiloxane polymer class made of special process technology
The advantages of performance organic-inorganic hybrid material has insoluble insoluble thermosetting property, integrates inorganic particle and organic powder, tool
There is good lubricity, moreover it is possible to promote pigment to disperse, prevent pigment and particle agglomerate.The organic silicone powder has following excellent
Point: (1) increase the use temperature of coating；(2) mechanical property of coating is improved；(3) prevent the sedimentations such as metal powder from reuniting；(4) have
There is good water-fast, resistant effect, there is automatically cleaning and scrub performance；(5) improve that film is hydrophobic, oleophobic stain, it is anti-slide mark, anti-
Fingerprint mark effect.
The nano aluminium oxide has the performances such as excellent wear-resisting, hardening, high temperature resistant and insulation, in certain embodiments
In, the nano aluminium oxide is that Carter new material Co., Ltd nano aluminium oxide is protected in Nanjing.
The crackle auxiliary agent is high molecular weight silicone solution, and, exquisite colourless transparent liquid uniform with mallear stria is stood
Body-sensing is strong, and adhesive force is good, the good advantage of slipping, for example, the novel moire auxiliary agent of Guangzhou Bo Feng Chemical Industry Science Co., Ltd.
The nanometer anion powder because its ice stone composite powder thermoelectricity and piezoelectric effect, when external condition changes, such as
When temperature, psychrometric difference, friction, molecule simultaneously is allowed to be converted into negative aeroion, i.e. negative oxygen ion, and it is net to facilitate air
Change, for example, Dongguan City rises the TM-310 negative ion powder of U.S. nanometer new material Co., Ltd.
The pigment is that types pigment, the pigment proportions such as commercially available pigment can be matched according to client's designated color
Than.
The pH adjusting agent is one of dimethylethanolamine and multifunctional assistant AMP-95 or a variety of, both pH
Value regulator not only has the effect of adjusting pH value, but also has the characteristic of certain auxiliary film forming.In certain embodiments
In, dimethylethanolamine is BASF Aktiengesellschaft's production, and multifunctional assistant AMP-95 is Dow Chemical Manufacture.
Second defoaming agent is the mixture that phosphoric acid lipid hydrophobicity defoams foam inhibitor and organic silicon defoaming agents,
In some embodiments, phosphoric acid lipid hydrophobicity defoaming foam inhibitor and organic silicon defoaming agent are according to mixed according to mass ratio 1/1
It closes, in certain embodiments, such as phosphoric acid lipid hydrophobicity defoaming foam inhibitor is the 941PL of MOUSSEX company, and organic silicon disappears
The defoaming that infusion is (BIC Corp) BYK acts on auxiliary agent B YK-028 or BYK024.
The dispersing agent is polyester modification polyphosphoric acid esters dispersing agent, such as (BYK Bick) ABYK190.
Second substrate wetting agents are the wetting agent of Siloxane-Oxyalkylene Copolymers class, such as the Tego- of (Digao) TEGO
4100, second substrate wetting agents play the role of slip agent, levelling agent, and paint film is made to seem more plentiful.
Second thickener is polyurethane-type thickener, such as the polyurethane-type thickener PS202 of Ning Baidi
The removing auxiliary agent is polyether-modified hydroxyl functional dimethyl silicone polymer solution, and high auxiliary agent reduction is covered with dust
Property, film cleaning is improved, ground wetting, levelling, surface slip, water resistance (anti-to whiten), resist blocking and that and weatherability are improved.
For example, the BYK-3720 of BIC Corp BYK.Crackle auxiliary agent can get lasting effect after film coated surface crosslinking, can increase hydrophobic
And oil repellency, hence it is evident that improve the hydrophobic of paint film and denounce oily characteristic.In addition this product can reduce being covered with dust property, while improving film and washing
Property, ground wetting, levelling, surface slip, antifouling, anti-fog function, resist blocking and that and weatherability can be improved.
In above scheme, the isocyanate curing agent is prepared by polyethylene glycol mixing monoether and HDI trimer；Institute
The molar ratio for stating polyethylene glycol mixing monoether and the HDI trimer is 4~6/1.
The solidification of polyethylene glycol mixing monoether and the isocyanate curing agent of HDI trimer preparation in addition to curing agent can be enhanced
Performance, moreover it is possible to improve the hydrophobicity and anti-settling property of paint film.
In above scheme, the HDI trimer is the modified HDI trimer of poly glycol monomethyl ether.
Another aspect of the present invention provides a kind of preparation method of optional aqueous crackle coating of removing comprising following step
It is rapid:
The preparation method of water-base epoxy priming paint:
Step 1, in advance by 1/2 water, 1/2 pH adjusting agent, dispersing agent, 1/2 defoaming agent, barium sulfate, talcum powder,
Pigment and fumed silica are mixed, and stir 15~20min, 40 μ of fineness of grind < with the speed of 1000~1500r/min
m
Step 2, under the revolving speed stirring condition of 500~600r/min, successively added into reaction kettle aqueous epoxy emulsion,
2/3 coalescing agent, 1/2 pH adjusting agent, 1/2 defoaming agent, substrate wetting agents, under the revolving speed of 1000~1500r/min
Stir 10~20min；
Mixture prepared by the step 1 is added in the reaction kettle of the step 2 by step 3,600~
10~20min is stirred under the revolving speed of 800r/min；Thickener is added, stirs 10~20min under the revolving speed of 500~600r/min,
Viscosity is adjusted to qualification, obtains the component A that epoxy resin latex is made into；
Step 4 successively adds under the speed conditions of 400~500r/min curing agent, 1/3 in another reaction kettle
Coalescing agent, 1/2 deionized water, and the speed of 1000~1500r/min stir 15~30min, obtain B component；
In use, A, B component are used in mixed way according to mass ratio (5~10)/1；
The preparation method of aqueous fluorine-containing finishing coat:
Step 1, in advance by 1/2 deionized water, 1/2 pH adjusting agent, dispersing agent, 1/2 defoaming agent, nano oxidized
Aluminium, organic silicone powder, negative ion powder he pigment are mixed, using grinder by fineness≤20 μm；
Step 2, under the speed conditions of 500~700r/min, into reaction kettle add water-based hydroxyl acrylic emulsion,
Coalescing agent, 1/2 pH adjusting agent, 1/2 defoaming agent, crackle auxiliary agent he substrate wetting agents, 1000~1500r/min's turns
Speed is lower to stir 10~15min；
Mixture prepared by the step 1 is added in the reaction kettle of the step 2 by step 3,600~
The revolving speed of 800r/min stirs 10~20min；
Step 4, thickener is added in Xiang Suoshu reaction kettle, and the revolving speed of 500~700r/min stirs 10~20min, adjustment
Viscosity is to qualification, as the first component；
Isocyanate curing agent is dissolved in cosolvent under drying condition, is sealed as the second component by step 5；
In use, the first component and the second component are mixed according to mass ratio (5~7)/1.
In above scheme, in the preparation method of the aqueous crackle coating of optional removing, in water-base epoxy priming paint
In preparation process, between the step 2 and the step 3 further include:
Into the reaction kettle be added lauryl alcohol polyethylene glycol oxide phosphate potassium, 800r/min~1000r/min revolving speed into
Row dispersion stirring 5min~10min.
Embodiment
Embodiment 1
The aqueous crackle coating of removing may be selected in one kind, wherein the aqueous crackle coating includes water-base epoxy priming paint and aqueous
Fluorine-containing finishing coat composition:
The water-base epoxy priming paint includes:
Component A: the epoxy resin latex of 50 mass parts, the dispersing agent of 0.1 mass parts, 0.1 mass parts the first defoaming agent,
First coalescing agent of 1 mass parts, the first base material wetting agent of 0.3 mass parts, the deionized waters of 5 mass parts, 10 mass parts
Talcum powder, the barium sulfate of 0.1 mass parts, the pigment of 0.1 mass parts, the fumed silica of 0.2 mass parts, 10 mass parts are consolidated
First thickener of agent and 0.5 mass parts.
B component is curing agent.
The component A and the B component are mixed according to mass ratio 5/1.
The aqueous fluorine-containing finishing coat includes:
First component includes: the water-based hydroxyl acrylic acid of the water-based hydroxyl acrylic acid dispersion of 60 mass parts, 30 mass parts
Lotion, the curing agent of 5 mass parts, the cosolvent of 2 mass parts, the organic silicone powder of 1 mass parts, 1 mass parts nano aluminium oxide,
The crackle auxiliary agent of 0.5 mass parts, the nanometer anion powder of 0.1 mass parts, 1 mass parts pigment, 0.1 mass parts pH adjusting agent,
Second defoaming agent of 0.1 mass parts, the second coalescing agent of 2 mass parts, the dispersing agent of 0.3 mass parts, 0.3 mass parts second
Second thickener of substrate wetting agents, the deionized water of 5 mass parts, 0.5 mass parts.
Second component includes the isocyanate curing agent of 10 mass parts.
First component and second component are mixed according to mass ratio 5/1.
In above scheme, the dispersing agent is polyester modification polyphosphoric acid esters dispersing agent.
The coalescing agent is propylene glycol monomethyl ether, propandiol butyl ether, dipropylene glycol methyl ether and dipropylene according to matter
Amount is than 1/1/1/1 mixing.
First defoaming agent is that phosphoric acid lipid hydrophobicity defoams foam inhibitor.
The first base material wetting agent is the wetting agent of Siloxane-Oxyalkylene Copolymers class.
First thickener is polyurethane-type thickener.
The talcum powder is 1250 mesh；The barium sulfate is 1500 mesh.
Preparation method:
The preparation method of water-base epoxy priming paint:
Step 1, in advance by 1/2 water, 1/2 pH adjusting agent, dispersing agent, 1/2 defoaming agent, barium sulfate, talcum powder,
Pigment and fumed silica are mixed, and stir 15~20min, 40 μ of fineness of grind < with the speed of 1000~1500r/min
m
Step 2, under the revolving speed stirring condition of 500~600r/min, successively added into reaction kettle aqueous epoxy emulsion,
2/3 coalescing agent, 1/2 pH adjusting agent, 1/2 defoaming agent, substrate wetting agents, under the revolving speed of 1000~1500r/min
Stir 10~20min；
Mixture prepared by the step 1 is added in the reaction kettle of the step 2 by step 3,600~
10~20min is stirred under the revolving speed of 800r/min；Thickener is added, stirs 10~20min under the revolving speed of 500~600r/min,
Viscosity is adjusted to qualification, obtains the component A that epoxy resin latex is made into；
Step 4 successively adds under the speed conditions of 400~500r/min curing agent, 1/3 in another reaction kettle
Coalescing agent, 1/2 deionized water, and the speed of 1000~1500r/min stir 15~30min, obtain B component；
In use, A, B component are used in mixed way according to mass ratio (5~10)/1；
The preparation method of aqueous fluorine-containing finishing coat:
Step 1, in advance by 1/2 deionized water, 1/2 pH adjusting agent, dispersing agent, 1/2 defoaming agent, nano oxidized
Aluminium, organic silicone powder, negative ion powder and pigment are mixed, using grinder by fineness≤20 μm；
Step 2, under the speed conditions of 500~700r/min, into reaction kettle add water-based hydroxyl acrylic emulsion,
Coalescing agent, 1/2 pH adjusting agent, 1/2 defoaming agent, crackle auxiliary agent he substrate wetting agents, 1000~1500r/min's turns
Speed is lower to stir 10~15min；
Mixture prepared by the step 1 is added in the reaction kettle of the step 2 by step 3,600~
The revolving speed of 800r/min stirs 10~20min；
Step 4, thickener is added in Xiang Suoshu reaction kettle, and the revolving speed of 500~700r/min stirs 10~20min, adjustment
Viscosity is to qualification, as the first component；
Isocyanate curing agent is dissolved in cosolvent under drying condition, is sealed as the second component by step 5；
In use, the first component and the second component are mixed according to mass ratio (5~7)/1.
Embodiment 2
The aqueous crackle coating of removing may be selected in one kind, wherein the aqueous crackle coating includes water-base epoxy priming paint and aqueous
Fluorine-containing finishing coat composition:
The water-base epoxy priming paint includes:
Component A: the epoxy resin latex of 70 mass parts, the dispersing agent of 0.5 mass parts, 0.5 mass parts the first defoaming agent,
First coalescing agent of 5 mass parts, the first base material wetting agent of 0.5 mass parts, the deionized waters of 10 mass parts, 20 mass parts
Talcum powder, the barium sulfate of 10 mass parts, the pigment of 10 mass parts, the fumed silica of 2 mass parts, 30 mass parts curing agent
With the first thickener of 1.0 mass parts.
B component is curing agent.
The component A and the B component are mixed according to mass ratio 10/1.
The aqueous fluorine-containing finishing coat includes:
First component includes: the water-based hydroxyl acrylic acid of the water-based hydroxyl acrylic acid dispersion of 70 mass parts, 50 mass parts
Lotion, the curing agent of 20 mass parts, the cosolvent of 5 mass parts, the organic silicone powder of 5 mass parts, 5 mass parts it is nano oxidized
Aluminium, the crackle auxiliary agent of 2 mass parts, the nanometer anion powder of 3 mass parts, 10 mass parts pigment, the pH adjusting agent of 0.2 mass parts, 2
Second defoaming agent of mass parts, the second coalescing agent of 5 mass parts, the dispersing agent of 0.5 mass parts, 0.5 mass parts the second base
Second thickener of material wetting agent, the deionized water of 10 mass parts, 1.0 mass parts.
Second component includes the isocyanate curing agent of 30 mass parts.
First component and second component are mixed according to mass ratio 7/1.
In above scheme, the dispersing agent is polyester modification polyphosphoric acid esters dispersing agent.
The coalescing agent is propylene glycol monomethyl ether.
First defoaming agent is that phosphoric acid lipid hydrophobicity defoams foam inhibitor.
The first base material wetting agent is the wetting agent of Siloxane-Oxyalkylene Copolymers class.
First thickener is polyurethane-type thickener.
The talcum powder is 1250 mesh；The barium sulfate is 1500 mesh.
Preparation method:
The preparation method of water-base epoxy priming paint:
Step 1, in advance by 1/2 water, 1/2 pH adjusting agent, dispersing agent, 1/2 defoaming agent, barium sulfate, talcum powder,
Pigment and fumed silica are mixed, and stir 15~20min, 40 μ of fineness of grind < with the speed of 1000~1500r/min
m
Step 2, under the revolving speed stirring condition of 500~600r/min, successively added into reaction kettle aqueous epoxy emulsion,
2/3 coalescing agent, 1/2 pH adjusting agent, 1/2 defoaming agent, substrate wetting agents, under the revolving speed of 1000~1500r/min
Stir 10~20min；
Mixture prepared by the step 1 is added in the reaction kettle of the step 2 by step 3,600~
10~20min is stirred under the revolving speed of 800r/min；Thickener is added, stirs 10~20min under the revolving speed of 500~600r/min,
Viscosity is adjusted to qualification, obtains the component A that epoxy resin latex is made into；
Step 4 successively adds under the speed conditions of 400~500r/min curing agent, 1/3 in another reaction kettle
Coalescing agent, 1/2 deionized water, and the speed of 1000~1500r/min stir 15~30min, obtain B component；
In use, A, B component are used in mixed way according to mass ratio (5~10)/1；
The preparation method of aqueous fluorine-containing finishing coat:
Step 1, in advance by 1/2 deionized water, 1/2 pH adjusting agent, dispersing agent, 1/2 defoaming agent, nano oxidized
Aluminium, organic silicone powder, negative ion powder he pigment are mixed, using grinder by fineness≤20 μm；
Step 2, under the speed conditions of 500~700r/min, into reaction kettle add water-based hydroxyl acrylic emulsion,
Coalescing agent, 1/2 pH adjusting agent, 1/2 defoaming agent, crackle auxiliary agent he substrate wetting agents, 1000~1500r/min's turns
Speed is lower to stir 10~15min；
Mixture prepared by the step 1 is added in the reaction kettle of the step 2 by step 3,600~
The revolving speed of 800r/min stirs 10~20min；
Step 4, thickener is added in Xiang Suoshu reaction kettle, and the revolving speed of 500~700r/min stirs 10~20min, adjustment
Viscosity is to qualification, as the first component；
Isocyanate curing agent is dissolved in cosolvent under drying condition, is sealed as the second component by step 5；
In use, the first component and the second component are mixed according to mass ratio (5~7)/1.
Embodiment 3
The aqueous crackle coating of removing may be selected in one kind, wherein the aqueous crackle coating includes water-base epoxy priming paint and aqueous
Fluorine-containing finishing coat composition:
The water-base epoxy priming paint includes:
Component A: the epoxy resin latex of 60 mass parts, the dispersing agent of 0.4 mass parts, 0.3 mass parts the first defoaming agent,
First coalescing agent of 3 mass parts, the first base material wetting agent of 0.4 mass parts, the deionized waters of 7 mass parts, 15 mass parts
Talcum powder, the barium sulfate of 7 mass parts, the pigment of 5 mass parts, the fumed silica of 1.2 mass parts, 22 mass parts curing agent
With the first thickener of 0.7 mass parts.
B component is curing agent.
The component A and the B component are mixed according to mass ratio 7/1.
The aqueous fluorine-containing finishing coat includes:
First component includes: the water-based hydroxyl acrylic acid of the water-based hydroxyl acrylic acid dispersion of 65 mass parts, 40 mass parts
Lotion, the curing agent of 15 mass parts, the cosolvent of 4 mass parts, the organic silicone powder of 3 mass parts, 3 mass parts it is nano oxidized
The pH adjusting of aluminium, the crackle auxiliary agent of 1.5 mass parts, the nanometer anion powder of 2.1 mass parts, 8 mass parts pigment, 0.1 mass parts
Agent, the second defoaming agent of 0.2 mass parts, the second coalescing agent of 4 mass parts, the dispersing agents of 0.4 mass parts, 0.4 mass parts
Second thickener of the second substrate wetting agents, the deionized water of 8 mass parts, 0.8 mass parts.
Second component includes the isocyanate curing agent of 20 mass parts.
First component and second component are mixed according to mass ratio 6/1.
In above scheme, the dispersing agent is polyester modification polyphosphoric acid esters dispersing agent.
The coalescing agent is propandiol butyl ether.
First defoaming agent is that phosphoric acid lipid hydrophobicity defoams foam inhibitor.
The first base material wetting agent is the wetting agent of Siloxane-Oxyalkylene Copolymers class.
First thickener is polyurethane-type thickener.
The talcum powder is 1250 mesh；The barium sulfate is 1500 mesh.
Preparation method:
The preparation method of water-base epoxy priming paint:
Step 1, in advance by 1/2 water, 1/2 pH adjusting agent, dispersing agent, 1/2 defoaming agent, barium sulfate, talcum powder,
Pigment and fumed silica are mixed, and stir 15~20min, 40 μ of fineness of grind < with the speed of 1000~1500r/min
m
Step 2, under the revolving speed stirring condition of 500~600r/min, successively added into reaction kettle aqueous epoxy emulsion,
2/3 coalescing agent, 1/2 pH adjusting agent, 1/2 defoaming agent, substrate wetting agents, under the revolving speed of 1000~1500r/min
Stir 10~20min；
Mixture prepared by the step 1 is added in the reaction kettle of the step 2 by step 3,600~
10~20min is stirred under the revolving speed of 800r/min；Thickener is added, stirs 10~20min under the revolving speed of 500~600r/min,
Viscosity is adjusted to qualification, obtains the component A that epoxy resin latex is made into；
Step 4 successively adds under the speed conditions of 400~500r/min curing agent, 1/3 in another reaction kettle
Coalescing agent, 1/2 deionized water, and the speed of 1000~1500r/min stir 15~30min, obtain B component；
In use, A, B component are used in mixed way according to mass ratio (5~10)/1；
The preparation method of aqueous fluorine-containing finishing coat:
Step 1, in advance by 1/2 deionized water, 1/2 pH adjusting agent, dispersing agent, 1/2 defoaming agent, nano oxidized
Aluminium, organic silicone powder, negative ion powder he pigment are mixed, using grinder by fineness≤20 μm；
Step 2, under the speed conditions of 500~700r/min, into reaction kettle add water-based hydroxyl acrylic emulsion,
Coalescing agent, 1/2 pH adjusting agent, 1/2 defoaming agent, crackle auxiliary agent he substrate wetting agents, 1000~1500r/min's turns
Speed is lower to stir 10~15min；
Mixture prepared by the step 1 is added in the reaction kettle of the step 2 by step 3,600~
The revolving speed of 800r/min stirs 10~20min；
Step 4, thickener is added in Xiang Suoshu reaction kettle, and the revolving speed of 500~700r/min stirs 10~20min, adjustment
Viscosity is to qualification, as the first component；
Isocyanate curing agent is dissolved in cosolvent under drying condition, is sealed as the second component by step 5；
In use, the first component and the second component are mixed according to mass ratio (5~7)/1.
Embodiment 4
The aqueous crackle coating of removing may be selected in one kind, wherein the aqueous crackle coating includes water-base epoxy priming paint and aqueous
Fluorine-containing finishing coat composition:
The water-base epoxy priming paint includes:
Component A: the epoxy resin latex of 55 mass parts, the lauryl alcohol polyethylene glycol oxide phosphate of 22 mass parts, 0.3 mass parts
Dispersing agent, the first defoaming agent of 0.4 mass parts, the first coalescing agent of 3 mass parts, the first base material of 0.3 mass parts wetting
Agent, the deionized water of 9 mass parts, the talcum powder of 18 mass parts, the barium sulfate of 4 mass parts, the pigment of 3 mass parts, 1.8 mass parts
Fumed silica, the curing agent of 16 mass parts and the first thickener of 0.6 mass parts, wherein the laruyl alcohol polyoxy second
It according to molar ratio is 1/1 that alkenyl phosphoric acid ester, which is by ethoxylated dodecyl alcohol and phosphorus pentoxide, and esterification temperature is 75 DEG C, when esterification
Between 5h generate.
B component is curing agent.
The component A and the B component are mixed according to mass ratio 7/1.
The aqueous fluorine-containing finishing coat includes:
First component includes: the water-based hydroxyl acrylic acid of the water-based hydroxyl acrylic acid dispersion of 68 mass parts, 43 mass parts
Lotion, the curing agent of 18 mass parts, the cosolvent of 3 mass parts, the organic silicone powder of 4 mass parts, 4 mass parts it is nano oxidized
The pH adjusting of aluminium, the crackle auxiliary agent of 1.3 mass parts, the nanometer anion powder of 2.3 mass parts, 7 mass parts pigment, 0.1 mass parts
Agent, the second defoaming agent of 0.2 mass parts, the second coalescing agent of 4 mass parts, the dispersing agents of 0.3 mass parts, 0.5 mass parts
Second thickener of the second substrate wetting agents, the deionized water of 8 mass parts, 0.6 mass parts.
Second component includes the isocyanate curing agent of 26 mass parts, and the isocyanate curing agent is by polyethylene glycol
Mixing monoether and HDI trimer are prepared；The molar ratio of the polyethylene glycol mixing monoether and the HDI trimer is 5/1,
Wherein the HDI trimer is the modified HDI trimer of poly glycol monomethyl ether.
First component and second component are mixed according to mass ratio 7/1.
In above scheme, the dispersing agent is polyester modification polyphosphoric acid esters dispersing agent.
The coalescing agent is dipropylene glycol methyl ether.
First defoaming agent is that phosphoric acid lipid hydrophobicity defoams foam inhibitor.
The first base material wetting agent is the wetting agent of Siloxane-Oxyalkylene Copolymers class.
First thickener is polyurethane-type thickener.
The talcum powder is 1250 mesh；The barium sulfate is 1500 mesh.
Preparation method:
The preparation method of water-base epoxy priming paint:
Step 1, in advance by 1/2 water, 1/2 pH adjusting agent, dispersing agent, 1/2 defoaming agent, barium sulfate, talcum powder,
Pigment and fumed silica are mixed, and stir 15~20min, 40 μ of fineness of grind < with the speed of 1000~1500r/min
m
Step 2, under the revolving speed stirring condition of 500~600r/min, successively added into reaction kettle aqueous epoxy emulsion,
2/3 coalescing agent, 1/2 pH adjusting agent, 1/2 defoaming agent, substrate wetting agents, under the revolving speed of 1000~1500r/min
Stir 10~20min；
Into the reaction kettle be added lauryl alcohol polyethylene glycol oxide phosphate potassium, 800r/min~1000r/min revolving speed into
Row dispersion stirring 5min~10min；
Mixture prepared by the step 1 is added in the reaction kettle of the step 2 by step 3,600~
10~20min is stirred under the revolving speed of 800r/min；Thickener is added, stirs 10~20min under the revolving speed of 500~600r/min,
Viscosity is adjusted to qualification, obtains the component A that epoxy resin latex is made into；
Step 4 successively adds under the speed conditions of 400~500r/min curing agent, 1/3 in another reaction kettle
Coalescing agent, 1/2 deionized water, and the speed of 1000~1500r/min stir 15~30min, obtain B component；
In use, A, B component are used in mixed way according to mass ratio (5~10)/1；
The preparation method of aqueous fluorine-containing finishing coat:
Step 1, in advance by 1/2 deionized water, 1/2 pH adjusting agent, dispersing agent, 1/2 defoaming agent, nano oxidized
Aluminium, organic silicone powder, negative ion powder he pigment are mixed, using grinder by fineness≤20 μm；
Step 2, under the speed conditions of 500~700r/min, into reaction kettle add water-based hydroxyl acrylic emulsion,
Coalescing agent, 1/2 pH adjusting agent, 1/2 defoaming agent, crackle auxiliary agent he substrate wetting agents, 1000~1500r/min's turns
Speed is lower to stir 10~15min；
Mixture prepared by the step 1 is added in the reaction kettle of the step 2 by step 3,600~
The revolving speed of 800r/min stirs 10~20min；
Step 4, thickener is added in Xiang Suoshu reaction kettle, and the revolving speed of 500~700r/min stirs 10~20min, adjustment
Viscosity is to qualification, as the first component；
Isocyanate curing agent is dissolved in cosolvent under drying condition, is sealed as the second component by step 5；
In use, the first component and the second component are mixed according to mass ratio (5~7)/1.
Comparative example 1
A kind of aqueous crackle coating, wherein the crackle coating includes the following ingredient according to weight percent: part alkalizes
Type polyvinyl alcohol resin 4.39~21.31%: dissolving resin water 28.87~62.19%；Self-cross linking type acrylate and vinyl acetate emulsion 4.21~
15.29%；Defoaming agent 0.08~0.50%；Fungicide 0.16~0.66%；Emulsion paint mill base 0~11.70%；Thinned water
19.25~49.75%；Ammonium hydroxide 0.08~0.33%, wherein the defoaming agent is mineral oil surfactant；The fungicide
It is isothiazolinone.
The characterization test for the aqueous crackle coating of optional removing that above-described embodiment 1-4 is prepared is as a result, with comparative example 1
The characterization result of the aqueous crackle coating of preparation, as shown in table 1, the optional aqueous crackle coating of removing described in embodiment 1-4
VOC value is low, it is good to recoat adhesive force height, water-tolerant, salt fog resistance.
Table 1
| Project | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Comparative example 1 | Examination criteria |
| VOC content (g/L) | 40 | 30 | 40 | 30 | 120 | GB/T 23986-2009 |
| Scrub resistance | 300 times without exception | 300 times without exception | 300 times without exception | 300 times without exception | 200 times without exception | |
| Water resistance | 720h | 800h | 780h | 760h | 480h | GBT/1733-93 |
| Salt fog resistance | 240h | 220h | 240h | 210h | 120h | GBT/1771-2007 |
Without departing substantially from the scope or spirit of the invention, the specific embodiment of description of the invention can be done more
Kind improvements and changes, this will be apparent to those skilled in the art.Other realities obtained by specification of the invention
Applying mode for technical personnel is apparent obtain.Present specification and embodiment are merely exemplary.
Claims (10)
1. the aqueous crackle coating of removing may be selected in one kind, wherein the aqueous crackle coating includes water-base epoxy priming paint and aqueous contains
Fluorine finishing coat composition:
The water-base epoxy priming paint includes the component A of the epoxy resin latex containing 50~70 mass parts and containing 5~12 mass
The B component of part curing agent, the component A and the B component are mixed according to mass ratio (5~10)/1；
The aqueous fluorine-containing finishing coat includes the first component and the second component, wherein first component includes 60~70 mass parts
Water-based hydroxyl acrylic acid dispersion, second component includes the isocyanate curing agent of 10~30 mass parts, described first
Component and second component are mixed according to mass ratio (5~7)/1.
2. the optional aqueous crackle coating of removing according to claim 1, wherein according to mass fraction meter, the component A
It further include the lauryl alcohol polyethylene glycol oxide phosphate of 10~30 mass parts.
3. the optional aqueous crackle coating of removing according to claim 2, wherein the lauryl alcohol polyethylene glycol oxide phosphate
It is by ethoxylated dodecyl alcohol and phosphorus pentoxide according to molar ratio is 1/1, esterification temperature is 75 DEG C, and esterification time 5h is raw
At.
4. the aqueous crackle coating of optional removing according to claim 2, wherein according to mass fraction meter,
The component A of the water-base epoxy priming paint further includes that the dispersing agent of 0.1~0.5 mass parts, 0.1~0.5 mass parts first disappear
Infusion, the first coalescing agent of 1~5 mass parts, the first base material wetting agents of 0.3~0.5 mass parts, 5~10 mass parts are gone
Ionized water, the talcum powder of 10~20 mass parts, the barium sulfate of 0~10 mass parts, the pigment of 0~10 mass parts, 0.2~2 mass
The fumed silica, the curing agent of 10~30 mass parts and the first thickener of 0.5~1.0 mass parts of part；
First component of the aqueous fluorine-containing finishing coat further includes the water-based hydroxyl acrylic emulsion of 30~50 mass parts, 5~20 mass
Part curing agent, the cosolvent of 2~5 mass parts, the organic silicone powder of 1~5 mass parts, 1~5 mass parts nano aluminium oxide,
The crackle auxiliary agent of 0.5~2 mass parts, the nanometer anion powder of 0.1~3 mass parts, 1~10 mass parts pigment, 0.1~0.2 matter
Measure the second coalescing agent, 0.3~0.5 matter of the pH adjusting agent of part, the second defoaming agent of 0.1~0.2 mass parts, 2~5 mass parts
Measure the dispersing agent of part, the second substrate wetting agents of 0.3~0.5 mass parts, 5~10 mass parts deionized water and 0.5~1.0 matter
Measure second thickener of part.
5. the optional aqueous crackle coating of removing according to claim 4, wherein the dispersing agent is the poly- phosphorus of polyester modification
Esters of gallic acid dispersing agent；
The coalescing agent be one of propylene glycol monomethyl ether, propandiol butyl ether, dipropylene glycol methyl ether and dipropylene or
It is a variety of；
First defoaming agent is that phosphoric acid lipid hydrophobicity defoams foam inhibitor；
The first base material wetting agent is the wetting agent of Siloxane-Oxyalkylene Copolymers class；
First thickener is polyurethane-type thickener.
6. the optional aqueous crackle coating of removing according to claim 4, wherein the talcum powder is 1250 mesh；It is described
Barium sulfate is 1500 mesh.
7. the optional aqueous crackle coating of removing according to claim 1, wherein the isocyanate curing agent is by poly- second
Glycol mixing monoether and HDI trimer are prepared；The molar ratio of the polyethylene glycol mixing monoether and the HDI trimer is
(4~6)/1.
8. the optional aqueous crackle coating of removing according to claim 7, wherein the HDI trimer is polyethylene glycol
Monomethyl ether is modified HDI trimer.
9. a kind of preparation method of the optional aqueous crackle coating of removing according to any one of claims 1 to 8 comprising
Following steps:
The preparation method of water-base epoxy priming paint:
Step 1, in advance by 1/2 water, 1/2 pH adjusting agent, dispersing agent, 1/2 defoaming agent, barium sulfate, talcum powder, pigment
It is mixed with fumed silica, 15~20min is stirred with the speed of 1000~1500r/min, 40 μm of fineness of grind <
Under the revolving speed stirring condition of 500~600r/min, aqueous epoxy emulsion, 2/3 one-tenth are successively added into reaction kettle for step 2
Film auxiliary agent, 1/2 pH adjusting agent, 1/2 defoaming agent, substrate wetting agents, stir 10 under the revolving speed of 1000~1500r/min
~20min；
Mixture prepared by the step 1 is added in the reaction kettle of the step 2, in 600~800r/min by step 3
Revolving speed under stir 10~20min；Thickener is added, stirs 10~20min under the revolving speed of 500~600r/min, adjusts viscosity
To qualification, the component A that epoxy resin latex is made into is obtained；
Step 4 successively adds the film forming of curing agent, 1/3 in another reaction kettle under the speed conditions of 400~500r/min
Auxiliary agent, 1/2 deionized water, and the speed of 1000~1500r/min stir 15~30min, obtain B component；
In use, A, B component are used in mixed way according to mass ratio (5~10)/1；
The preparation method of aqueous fluorine-containing finishing coat:
Step 1, in advance by 1/2 deionized water, 1/2 pH adjusting agent, dispersing agent, 1/2 defoaming agent, nano aluminium oxide, have
Machine silicone powder, negative ion powder he pigment are mixed, using grinder by fineness≤20 μm；
Step 2 adds water-based hydroxyl acrylic emulsion, film forming into reaction kettle under the speed conditions of 500~700r/min
Auxiliary agent, 1/2 pH adjusting agent, 1/2 defoaming agent, crackle auxiliary agent he substrate wetting agents, under the revolving speed of 1000~1500r/min
Stir 10~15min；
Mixture prepared by the step 1 is added in the reaction kettle of the step 2, in 600~800r/min by step 3
Revolving speed stir 10~20min；
Step 4, thickener is added in Xiang Suoshu reaction kettle, and the revolving speed of 500~700r/min stirs 10~20min, adjusts viscosity
To qualification, as the first component；
Isocyanate curing agent is dissolved in cosolvent under drying condition, is sealed as the second component by step 5；
In use, the first component and the second component are mixed according to mass ratio (5~7)/1.
10. the preparation method of the optional aqueous crackle coating of removing according to claim 9, in the system of water-base epoxy priming paint
During standby, between the step 2 and the step 3 further include:
Lauryl alcohol polyethylene glycol oxide phosphate potassium is added into the reaction kettle, is divided in 800r/min~1000r/min revolving speed
Dissipate stirring 5min~10min.
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| CN201910038582.5A CN109913083A (en) | 2019-01-16 | 2019-01-16 | Aqueous crackle coating of removing and preparation method thereof may be selected |
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|---|---|---|---|
| CN201910038582.5A CN109913083A (en) | 2019-01-16 | 2019-01-16 | Aqueous crackle coating of removing and preparation method thereof may be selected |
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Family
ID=66960380
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| CN112341880A (en) * | 2020-11-03 | 2021-02-09 | 湖北双键精细化工有限公司 | Water-based double-component single-coating crack paint |
| CN114058257A (en) * | 2021-11-17 | 2022-02-18 | 美氟新材料科技(常州)有限公司 | Non-silicon release coating with excellent aging resistance and antibacterial property and preparation method thereof |
| CN114316728A (en) * | 2020-09-29 | 2022-04-12 | 立邦工业涂料(上海)有限公司 | Quick-drying water-based coating system |
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