CN108329796A - A kind of epoxy emulsion and preparation method thereof - Google Patents
A kind of epoxy emulsion and preparation method thereof Download PDFInfo
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- CN108329796A CN108329796A CN201810089205.XA CN201810089205A CN108329796A CN 108329796 A CN108329796 A CN 108329796A CN 201810089205 A CN201810089205 A CN 201810089205A CN 108329796 A CN108329796 A CN 108329796A
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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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/50—Amines
- C08G59/5046—Amines heterocyclic
- C08G59/5053—Amines heterocyclic containing only nitrogen as a heteroatom
- C08G59/5073—Amines heterocyclic containing only nitrogen as a heteroatom having two nitrogen atoms in the ring
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/26—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds
- C08G65/2603—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing oxygen
- C08G65/2606—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing oxygen containing hydroxyl groups
- C08G65/2609—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing oxygen containing hydroxyl groups containing aliphatic hydroxyl groups
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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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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Abstract
The invention discloses a kind of epoxy emulsions, including following components in parts by weight：First 45 55 parts of epoxy resin；Second 26 parts of epoxy resin；38 parts of emulsifier；0.01 0.1 parts of levelling agent；25 parts of curing agent；13 parts of anti-flash rusting agent；35 45 parts of water；Second epoxy resin is flexible-epoxy.Epoxy emulsion water provided by the present invention is solvent, solves the problems, such as the volatilization of coatings industry solvent, can accomplish real Diamond Search；Grain size is smaller to be evenly distributed, and has many advantages, such as that environment-friendly solvent-free, quick solidifying, good insulating, paint film adhesion are strong, adhesion strength is high and storage period is long.The present invention also provides a kind of preparation methods of epoxy emulsion, and preparation flow is simple, good product quality, and product quality differs larger with laboratory emulsifying effectiveness after capable of solving the problems, such as industrialization, accelerate the process that product moves towards industrialization from laboratory.
Description
Technical field
The present invention relates to insulated paint technical fields more particularly to a kind of epoxy emulsion and preparation method thereof.
Background technology
Epoxy resin has many advantages, such as that adhesive force is high, chemical resistance is good, wearability is good and good insulation preformance, in insulated paint
Field is widely applied.Common epoxy resin insulating varnish is mostly solvent based coating, and it is organic molten that they contain 50% or more
Agent can be discharged into air producing with these organic solvents in work progress, pollution environment and threat human health.With ring
The increasingly strict of regulation is protected, waterborne epoxy coatings is more and more taken seriously.Existing waterborne epoxy coatings is unstable in the presence of storing,
Film performance is bad, needs the key technology difficulties such as bi-component package and construction inconvenience, therefore developing has storage period long and property
The excellent single-component water-based epoxy resin insulating varnish product of energy, and industrialization promotion and application are carried out, create larger society's warp
Ji benefit can accelerate Guangzhou enterprise transformation upgrading, push insulated paint technical progress of industry, improve the added value of related technical products.
The preparation of aqueous epoxy resins mainly uses two kinds of self-emulsification and outer emulsion process, and wherein self-emulsification is frequently with change
Method introduces hydrophilic radical in asphalt mixtures modified by epoxy resin fat chain, through acid or alkali neutralization at salt, and water emulsification is added to be prepared.Prepared by the method
Aqueous epoxy resins are not necessarily to additional emulsifier, and emulsion particle diameter is small, and stability is good, but the introducing of hydrophilic radical reduces epoxy resin
The water resistance of film also reduces its mechanical performance.Outer emulsion process makes epoxy resin be uniformly dispersed in by additional emulsifier
In water, which has many advantages, such as that preparation process is simple, at low cost, becomes the main method of water-borne modification of epoxy resin.But outer breast
It product the shortcomings of there are epoxy emulsion bin stability and bad film performances that change method obtains, needs further perfect.Outer breast
The key that change method prepares epoxy emulsion is the selection of emulsifier, and common emulsifier has OP-10, SP-60, neopelex
Deng.Wherein nonionic emulsifier such as OP-10 is smaller due to being influenced by ion concentration, pH value etc., is compounded with other water-base resins
Property is good, phenomena such as being not in demulsification, becomes the first choice of emulsion epoxy resin.Nonionic emulsifier is generally by hydrophobicity chemical combination
Object such as nonyl phenol is reacted with hydrophilic compounds such as polyethylene glycol to be made.But this kind of emulsifier is not involved in the curing reaction of epoxy,
It can migrate to film coated surface in the curing process, keep film tacky, easily whiten after soaked, reduce the water resistance of film and resistance to
Chemicals energy.And this defect can be solved using active emulsifier.So-called active emulsifier refers to that polyethylene glycol etc. is non-
Ionic hydrophilic group is grafted in asphalt mixtures modified by epoxy resin fat chain, can not only emulsion epoxy resin, may also participate in the solidification of epoxy resin.Pass through
The HLB value of emulsifier can be regulated and controled by changing the molecular weight of polyethylene glycol, obtain excellent emulsifying effectiveness.
Generally speaking, existing aqueous epoxide resin paint has the following defects：
(1) it is generally bi-component, resin is separately packed with curing agent, mixing before constructing is inaccurate there are being matched when construction
Really, film performance is reduced, construction is returned and brings inconvenience；
(2) hardening time is long, and bin stability is poor, is easily layered in storage process, seriously limits aqueous epoxy resins
It promotes and applies；
(3) nonionic emulsifier emulsion epoxy resin, emulsifier is precipitated from film after film forming, reduces the water-fast of film
Property, chemical-resistant and stain resistance；
(4) product cut size is bigger than normal and particle diameter distribution is uneven；
(5) problem really up to the mark after hardening and excessively crisp is deposited.
Invention content
For overcome the deficiencies in the prior art, one of the objects of the present invention is to provide a kind of epoxy emulsions, it is a kind of
It is aqueous epoxy emulsion, can be at 110-130 DEG C, 60-120min rapid curings, while also ensuring the grain of the one-component product
Diameter is smaller, and particle diameter distribution is uniform, has longer Storage period and dilution stability good.
The second object of the present invention is to provide a kind of preparation method of epoxy emulsion, and preparation flow is simple, product quality
Good, product quality differs larger with laboratory emulsifying effectiveness after capable of solving the problems, such as industrialization, accelerates product from laboratory
Move towards the process of industrialization.
An object of the present invention adopts the following technical scheme that realization：
A kind of epoxy emulsion, including following components in parts by weight：First 45-55 parts of epoxy resin；Second epoxy
2-6 parts of resin；3-8 parts of emulsifier；0.01-0.1 parts of levelling agent；2-5 parts of curing agent；1-3 parts of anti-flash rusting agent；35-45 parts of water；Its
In, second epoxy resin is flexible-epoxy.
Further, first epoxy resin is E51 epoxy resin, E44 epoxy resin, E20 epoxy resin and E12 rings
One kind in oxygen resin or arbitrary combination.
Further, second epoxy resin be polyurethane-modified epoxy resin or be polyester modification asphalt mixtures modified by epoxy resin
Fat.
Further, the synthetic route of second epoxy resin is as shown in reaction equation I：
Further, the synthetic route of the emulsifier is as shown in reaction equation II：
Further, the levelling agent is BYK 415, BYK 354 and one kind in BYK 333 or arbitrary combination.
Further, the curing agent is modified imidazole latent curing agent, and synthetic route is as shown in reaction equation III：
Further, the anti-flash rusting agent is CH 07A, one kind in DH-7940 and SER-AD FA179 or arbitrary group
It closes.
The second object of the present invention adopts the following technical scheme that realization：
A kind of preparation method of epoxy emulsion, including：
Addition step：The first epoxy resin, the second epoxy resin and levelling agent of formula ratio are added in reaction kettle,
Controlled at 90-95 DEG C, 1.2-1.8h is stirred with the speed of 350-450r/min, obtains first material；
Secondary charging step：The emulsifier of formula ratio is added in the first material, controlled at 85-95 DEG C, with
The speed of 350-450r/min stirs 0.8-1.2h, obtains second material；
Cooling step：Setting speed of agitator is that 150-250r/min is obtained by the second material temperature drop to 60-70 DEG C
Third material；
Addition step three times：The curing agent of formula ratio is added in the third material, controlled at 62-66 DEG C, if
It is 150-250r/min to set speed of agitator, and insulated and stirred 0.3-0.8h obtains 4 materials；
Four addition steps：Anti- flash rusting agent and water by formula ratio, which are uniformly mixed, obtains that material is added dropwise, by the dropwise addition object
Material at the uniform velocity instills in the 4 materials, and total time is added dropwise as 175-185min in control, is stirred when being added dropwise, and controls mixing speed
For 450-550r/min, control material temperature is 62-66 DEG C during dropwise addition, obtains the 5th material；
Filtration step：By the 5th material be filtered to get.
Further, in an addition step, 1.5h is stirred with the speed of 400r/min；
In the secondary charging step, controlled at 90 DEG C, 1h is stirred with the speed of 400r/min；
In the cooling step, setting speed of agitator is 200r/min, by the second material temperature drop to 67 DEG C；
In the addition step three times, setting speed of agitator is 200r/min, insulated and stirred 0.5h；
In four addition steps, total time is added dropwise as 180min in control, is stirred when being added dropwise, and controls mixing speed
For 500r/min；
In the filtration step, by the strainer natural filtration under the effect of gravity of 300 mesh of the 5th material.
Compared with prior art, the beneficial effects of the present invention are：
(1) epoxy emulsion provided by the present invention solves the system of low-temperature setting aqueous epoxide resin paint in one-component
Standby problem, can be at 110-130 DEG C, 60-120min rapid curings, while also ensuring that the grain size of the one-component product is smaller,
Particle diameter distribution is uniform, has longer Storage period and dilution stability good；Meanwhile good film-forming property, there is no really up to the mark and excessively crisp
The problem of, specifically it is discussed below：
A, curing agent provided by the present invention is a kind of resting form epoxy hardener, can be with the group of other in product
Divide and mix, need not separate and pack, hybrid manipulation is not needed before construction, avoid proportioning inaccurate, influences painting film property
The defect of energy so that construction is significantly easy；
B, emulsifier provided by the present invention is a kind of high-efficiency activated emulsifier, the active group of emulsifier, Ke Yican
It is reacted with resin body, solving nonactive emulsifier can migrate to surface in resin curing process, and make surfaces of tacky, bubble
The problem of whitening is susceptible to after water, simultaneously because emulsifier and matrix resin matching degree are more preferable, emulsifying power higher solves
The product cut size problem bigger than normal with particle diameter distribution unevenness；
C, the present invention by introducing a certain amount of flexible group or resin in the epoxy, after improving epoxy resin cure
Toughness, solve technical barrier really up to the mark and excessively crisp after pure epoxy resin solidification.
(2) preparation method of epoxy emulsion provided by the present invention takes suitable emulsifying device and emulsifying process, emulsification
Equipment has shearing force more fully evenly, allows resin to be more easy to be emulsified, solves product quality and laboratory after industrialization
Emulsifying effectiveness differs larger problem, while reducing emulsion particle diameter so that emulsion particle diameter is evenly distributed, and is conducive to improve product
Storage period and dilution stability accelerate the process that product moves towards industrialization from laboratory.
Description of the drawings
The production technological process for the epoxy emulsion that Fig. 1 is provided by the embodiment of the present invention.
Specific implementation mode
In the following, in conjunction with attached drawing and specific implementation mode, the present invention is described further, it should be noted that not
Under the premise of conflicting, new implementation can be formed between various embodiments described below or between each technical characteristic in any combination
Example.
A kind of epoxy emulsion, including following components in parts by weight：First 45-55 parts of epoxy resin；Second epoxy
2-6 parts of resin；3-8 parts of emulsifier；0.01-0.1 parts of levelling agent；2-5 parts of curing agent；1-3 parts of anti-flash rusting agent；35-45 parts of water；Its
In, the second epoxy resin is flexible-epoxy.
As further embodiment, the first epoxy resin is E51 epoxy resin, E44 epoxy resin, E20 asphalt mixtures modified by epoxy resin
Fat and one kind in E12 epoxy resin or arbitrary combination.
As further embodiment, the second epoxy resin is polyurethane-modified epoxy resin or is polyester modification
Epoxy resin.Second epoxy resin has flexible group, can improve the toughness after epoxy resin cure, solve pure epoxy
Technical barrier really up to the mark and excessively crisp after resin solidification, the synthetic route of the second epoxy resin is as shown in reaction equation I：
As further embodiment, emulsifier is a kind of high-efficiency activated emulsifier, active group, Ke Yican
It is reacted with resin body, solving nonactive emulsifier can migrate to surface in resin curing process, and make surfaces of tacky, bubble
The problem of whitening is susceptible to after water, simultaneously because emulsifier and matrix resin matching degree are more preferable, emulsifying power higher solves
The product cut size problem bigger than normal with particle diameter distribution unevenness, the synthetic route of emulsifier is as shown in reaction equation II：
As further embodiment, levelling agent is BYK 415, BYK 354 and one kind in BYK 333 or arbitrary group
It closes.
As further embodiment, curing agent is modified imidazole resting form epoxy hardener, can in product
Other components mix, need not separate and pack, hybrid manipulation is not needed before construction, avoid proportioning inaccurate, shadow
Ring the defect of film performance so that construction is significantly easy, and synthetic route is as shown in reaction equation III：
As further embodiment, anti-flash rusting agent be CH 07A, one kind in DH-7940 and SER-AD FA179 or
Arbitrary combination.
The epoxy emulsion that the embodiment of the present invention is provided makees solvent using water completely, solves coatings industry solvent
The problem of volatilization, can accomplish real Diamond Search；The preparation for solving low-temperature setting aqueous epoxide resin paint in one-component is difficult
Topic, can be at 110-130 DEG C, 60-120min rapid curings, while also ensuring that the grain size of the one-component product is smaller, grain size
It being evenly distributed, while the curing agent of the novel resting form using oneself synthesis so that the validity period of product reaches six months or more,
It is good with longer Storage period and dilution stability；And the good film-forming property of product, there is no problems really up to the mark and excessively crisp.This
The epoxy emulsion that inventive embodiments are provided can be applied to motor insulation processing, have environment-friendly solvent-free, quick solidifying, insulating properties
Well, the advantages that paint film adhesion is strong, adhesion strength is high and storage period is long.
Referring to Fig.1, a kind of preparation method of epoxy emulsion, including：
Addition step：The first epoxy resin, the second epoxy resin and levelling agent of formula ratio are added in reaction kettle,
Controlled at 90-95 DEG C, 1.2-1.8h is stirred with the speed of 350-450r/min, obtains first material；
Secondary charging step：The emulsifier of formula ratio is added in first material, controlled at 85-95 DEG C, with 350-
The speed of 450r/min stirs 0.8-1.2h, obtains second material；
Cooling step：Setting speed of agitator is that 150-250r/min obtains third by second material temperature drop to 60-70 DEG C
Material；
Addition step three times：The curing agent of formula ratio is added in third material, controlled at 62-66 DEG C, setting is stirred
Mix rotating speed is 150-250r/min, and insulated and stirred 0.3-0.8h obtains 4 materials；
Four addition steps：Anti- flash rusting agent and water by formula ratio, which are uniformly mixed, obtains being added dropwise material, even by material is added dropwise
Speed instills in 4 materials, and total time is added dropwise as 175-185min in control, is stirred when being added dropwise, and control mixing speed is 450-
550r/min, control material temperature is 62-66 DEG C during dropwise addition, obtains the 5th material；
Filtration step：By the 5th material be filtered to get.
As further embodiment, in an addition step, 1.5h is stirred with the speed of 400r/min；
In secondary charging step, controlled at 90 DEG C, 1h is stirred with the speed of 400r/min；
In cooling step, setting speed of agitator is 200r/min, by second material temperature drop to 67 DEG C；
In addition step three times, setting speed of agitator is 200r/min, insulated and stirred 0.5h；
In four addition steps, total time is added dropwise as 180min in control, is stirred when being added dropwise, and control mixing speed is
500r/min；
In filtration step, by the strainer natural filtration under the effect of gravity of 300 mesh of the 5th material.
The preparation method for the epoxy emulsion that the embodiment of the present invention is provided, preparation flow is simple, easy to operate, and it is suitable to take
Emulsifying device and emulsifying process, emulsifying device has more abundant shearing force evenly, allows resin to be more easy to be emulsified, solve
Product quality differs larger problem with laboratory emulsifying effectiveness after industrialization, accelerates product and moves towards industrialization from laboratory
Process.
It is specific embodiment of the present invention below, used raw material, equipment etc. remove special limit in the following embodiments
It can be obtained by buying pattern outside fixed.
Embodiment 1-5
A kind of epoxy emulsion, including following components in parts by weight：First epoxy resin, the second epoxy resin, breast
Agent, levelling agent, curing agent, anti-flash rusting agent and water；Wherein, the second epoxy resin is prepared by reaction equation I, and emulsifier is by anti-
Formula II is answered to be prepared, curing agent is prepared by reaction equation III.Specific formula see the table below 1.
The formula table of the epoxy emulsion of 1 embodiment 1-5 of table
The epoxy emulsion of embodiment 1-5 is prepared in accordance with the following methods：
Addition step：The first epoxy resin, the second epoxy resin and levelling agent of formula ratio are added in reaction kettle,
Controlled at 90-95 DEG C, 1.5h is stirred with the speed of 400r/min, obtains first material；
Secondary charging step：The emulsifier of formula ratio is added in first material, controlled at 90 DEG C, with 400r/min
Speed stir 1h, obtain second material；
Cooling step：Setting speed of agitator is that 200r/min obtains third material by second material temperature drop to 67 DEG C；
Addition step three times：The curing agent of formula ratio is added in third material, controlled at 62-66 DEG C, setting is stirred
Mix rotating speed is 200r/min, and insulated and stirred 0.5h obtains 4 materials；
Four addition steps：Anti- flash rusting agent and water by formula ratio, which are uniformly mixed, obtains being added dropwise material, even by material is added dropwise
Speed instills in 4 materials, and total time is added dropwise as 180min in control, is stirred when being added dropwise, and control mixing speed is 500r/min,
Control material temperature is 62-66 DEG C during dropwise addition, obtains the 5th material；
Filtration step：By the strainer of 300 mesh of the 5th material under the effect of gravity natural filtration to get.
Effect assessment and performance detection
The epoxy resin that Example -5 obtains, is respectively heated solidification, by GB/T 1981.1-2007 electric insulations
It is tested for the property with corresponding clause in paint, test result see the table below shown in 2.
The performance test results record sheet of the epoxy resin of 2 embodiment 1-5 of table
It can be obtained from the record in table 2, the indices of the epoxy emulsion of embodiment 1-5, test meet GB/T1981.1-
The regulation of 2007 electric insulations paint, especially embodiment 1, indices performance reach best, are most preferred embodiment.
The above embodiment is only the preferred embodiment of the present invention, and the scope of protection of the present invention is not limited thereto,
The variation and replacement for any unsubstantiality that those skilled in the art is done on the basis of the present invention belong to institute of the present invention
Claimed range.
Claims (10)
1. a kind of epoxy emulsion, which is characterized in that including following components in parts by weight：
First 45-55 parts of epoxy resin；
Second 2-6 parts of epoxy resin；
3-8 parts of emulsifier；
0.01-0.1 parts of levelling agent；
2-5 parts of curing agent；
1-3 parts of anti-flash rusting agent；
35-45 parts of water；
Wherein, second epoxy resin is flexible-epoxy.
2. epoxy emulsion as described in claim 1, which is characterized in that first epoxy resin is E51 epoxy resin, E44
Epoxy resin, E20 epoxy resin and one kind in E12 epoxy resin or arbitrary combination.
3. epoxy emulsion as described in claim 1, which is characterized in that second epoxy resin is polyurethane-modified epoxy
Resin or epoxy resin for polyester modification.
4. epoxy emulsion as claimed in claim 3, which is characterized in that the synthetic route such as reaction equation of second epoxy resin
Shown in I：
Reaction equation I.
5. epoxy emulsion as described in claim 1, which is characterized in that the synthetic route of the emulsifier such as II institute of reaction equation
Show：
Reaction equation II.
6. epoxy emulsion as described in claim 1, which is characterized in that the levelling agent is BYK 415, BYK 354 and BYK
One kind in 333 or arbitrary combination.
7. epoxy emulsion as described in claim 1, which is characterized in that the curing agent is modified imidazole latent curing agent,
Synthetic route is as shown in reaction equation III：
Reaction equation III.
8. epoxy emulsion as described in claim 1, which is characterized in that the anti-flash rusting agent is CH 07A, DH-7940 and SER-
One kind in AD FA179 or arbitrary combination.
9. a kind of preparation method of such as claim 1-8 any one of them epoxy emulsions, which is characterized in that including：
Addition step：The first epoxy resin, the second epoxy resin and levelling agent of formula ratio are added in reaction kettle, control
Temperature is 90-95 DEG C, stirs 1.2-1.8h with the speed of 350-450r/min, obtains first material；
Secondary charging step：The emulsifier of formula ratio is added in the first material, controlled at 85-95 DEG C, with 350-
The speed of 450r/min stirs 0.8-1.2h, obtains second material；
Cooling step：Setting speed of agitator is that 150-250r/min obtains third by the second material temperature drop to 60-70 DEG C
Material；
Addition step three times：The curing agent of formula ratio is added in the third material, controlled at 62-66 DEG C, setting is stirred
Mix rotating speed is 150-250r/min, and insulated and stirred 0.3-0.8h obtains 4 materials；
Four addition steps：Anti- flash rusting agent and water by formula ratio, which are uniformly mixed, obtains being added dropwise material, and the dropwise addition material is even
Speed instills in the 4 materials, and total time is added dropwise as 175-185min in control, is stirred when being added dropwise, and control mixing speed is
450-550r/min, control material temperature is 62-66 DEG C during dropwise addition, obtains the 5th material；
Filtration step：By the 5th material be filtered to get.
10. the preparation method of epoxy emulsion as claimed in claim 9, which is characterized in that
In an addition step, 1.5h is stirred with the speed of 400r/min；
In the secondary charging step, controlled at 90 DEG C, 1h is stirred with the speed of 400r/min；
In the cooling step, setting speed of agitator is 200r/min, by the second material temperature drop to 67 DEG C；
In the addition step three times, setting speed of agitator is 200r/min, insulated and stirred 0.5h；
In four addition steps, total time is added dropwise as 180min in control, is stirred when being added dropwise, and control mixing speed is
500r/min；
In the filtration step, by the strainer natural filtration under the effect of gravity of 300 mesh of the 5th material.
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| CN114316746A (en) * | 2022-01-06 | 2022-04-12 | 广东顺德大地缘新材料有限公司 | Water-based nano insulating paint and preparation method and application thereof |
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| EP0909800A1 (en) * | 1996-06-19 | 1999-04-21 | Daikin Industries, Limited | Coating composition, coating film, and process for the production of the film |
| CN105238227A (en) * | 2015-11-25 | 2016-01-13 | 湖南沃特邦恩新材料有限公司 | Waterborne epoxy impregnating insulating varnish and preparation method thereof |
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| EP0909800A1 (en) * | 1996-06-19 | 1999-04-21 | Daikin Industries, Limited | Coating composition, coating film, and process for the production of the film |
| CN105238227A (en) * | 2015-11-25 | 2016-01-13 | 湖南沃特邦恩新材料有限公司 | Waterborne epoxy impregnating insulating varnish and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114316746A (en) * | 2022-01-06 | 2022-04-12 | 广东顺德大地缘新材料有限公司 | Water-based nano insulating paint and preparation method and application thereof |
| CN114316746B (en) * | 2022-01-06 | 2022-09-13 | 广东顺德大地缘新材料有限公司 | Water-based nano insulating paint and preparation method and application thereof |
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