CN108624196A - Water-base epoxy shop primer and preparation method thereof - Google Patents
Water-base epoxy shop primer and preparation method thereof Download PDFInfo
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- CN108624196A CN108624196A CN201711084934.8A CN201711084934A CN108624196A CN 108624196 A CN108624196 A CN 108624196A CN 201711084934 A CN201711084934 A CN 201711084934A CN 108624196 A CN108624196 A CN 108624196A
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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
- C09D163/10—Epoxy resins modified by unsaturated compounds
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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
- C09D5/082—Anti-corrosive paints characterised by the anti-corrosive pigment
- C09D5/084—Inorganic compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2265—Oxides; Hydroxides of metals of iron
- C08K2003/2272—Ferric oxide (Fe2O3)
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/328—Phosphates of heavy metals
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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
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The present invention provides a kind of water-base epoxy shop primer and preparation method thereof, which includes water-base epoxy ester resin, water soluble acrylate resin, pH adjusting agent, dispersant, rust resisting pigment, antifoaming agent, anti-flash rusting agent, substrate wetting agents, anti-settling thixotropic agent, deionized water.The priming paint film curing speed is fast, and room temperature 5min, that is, surface drying is not required to toast；Early hardness is high, and hardness is up to HB after 12 hours；And heat-resistant stability is good, VOC content is low, and antiseptic property is excellent, and alternative solvent type water-base epoxy shop primer is used for the early stage anti-corrosion of railway freight-car.
Description
Technical field
The present invention relates to paint fields, and in particular to a kind of water-base epoxy shop primer and preparation method thereof.
Background technology
Currently, solvent type epoxy shop primer volatile organic matter (VOC) content that uses always of railway freight-car 500~
850g/L, when construction, a large amount of organic solvent volatilization all brought environmental and human health impacts serious harm, also gave production storage
Transport construction link has buried security risk.And since its antiseptic property is not high, salt fog resistance is generally not more than 48h, steel
There is corrosion after 9 months in material spraying oxide epoxy precoat primer.Environmental requirement with coating industry and railway freight-car requirement for anticorrosion
It improves, the exploitation water paint that VOC content is low, antiseptic property is good becomes the development trend of railway freight-car anticorrosive paint.
Chinese patent CN201610887251.5 discloses a kind of environment-friendly water-based shop primer of aqueous self-curing.The present invention applies
The formula of material includes two components of base-material and curing agent, and wherein base-material includes zinc powder, ferrophosphorus powder, filler, and curing agent includes silicon
Sour lithium potassium, modified emulsion.The aqueous shop primer improves the flexibility and adhesive force of paint film, reduces VOC, reduces simultaneously
Zinc content, the harm of zinc cigarette when reducing welding.
Chinese patent CN201610270947.3 provides a kind of with reinforcing paint film property, improvement anti-corrosive properties and welding
Property, reduce zinc mist and weld porosity that cutting welding generates.The priming paint include 40~90% zinc, 10~60% micaceous iron oxides, 5
~11 parts of water-soluble alkali metal silicates, 0~3 part of auxiliary agent.
Chinese patent CN201510253623.4 provides a kind of aqueous shop primer of highly corrosion resistant, which includes pressing
The following component of weight percentage：Modulus is not less than 5 potassium silicate 38%-100%, zinc powder 20%-30%, ferrophosphorus powder 40%-
60%, mica powder 2%-5%, kaolin 1%-10%, iron oxide 2%-10%, cellulose 2%-10%, wollastonite in powder 20%-
30%.The aqueous shop primer has good environment-friendly type, does not generate volatile organic matter, paint film have good adhesive force,
Weatherability and extremely strong anticorrosion, rustless property.
But in the prior art, water-base epoxy shop primer has that drying time is slow, early hardness is low (23 DEG C × paint for 24 hours
Film hardness is less than HB) the shortcomings that, it to be spaced 3-4 hours ability piles after basecoat paint, has delayed construction speed, has been applied to application
Work is made troubles.
Invention content
Present invention solves the problem in that providing the water-base epoxy that a kind of quick-drying, early hardness are high and antiseptic property is excellent
Shop primer is used on railway freight-car with substituting solvent type epoxy shop primer comprehensively, while additionally providing preparation method.
The first aspect of the invention provides a kind of room temperature (being greater than or equal to 5 DEG C or so) quick-dry type water-base epoxy precoating
Priming paint adds a variety of rust resisting pigments and auxiliary agent, room temperature using water-base epoxy ester resin, water soluble acrylate resin as base-material
Film-forming, with low, the excellent antiseptic property of VOC content；By water-base epoxy ester resin and water soluble acrylate resin's phase
In conjunction with not only having played the excellent advantage of the antiseptic property of water-base epoxy ester resin, but also combine water soluble acrylate resin's dryness
Fast feature, the water-base epoxy shop primer antiseptic property prepared is excellent, and dryness can meet site construction technology soon, can
Solvent type epoxy shop primer is substituted to use.
The specific technical solution of the present invention is：
A kind of water-base epoxy shop primer, the priming paint each component include the ingredient of following parts by weight：
Preferably, the water-base epoxy ester resin, for viscosity at 25~35S (format pipe), acid value is 9~18mgKOH/g,
Synthon includes：Linolenic acid, dehydrated castor oleic acid, E-20 or E-12 epoxy resin are synthesized, preferably by techniques such as esterifications
It is one or more in WAP 5812, YG-EP001, AQ340.
Preferably, the pH adjusting agent is N, it is one or more in N dimethyl ethanol amine, ammonium hydroxide, MA-95.
Preferably, the aqueous water soluble acrylate resin is quick-drying water-base resin, viscosity is Z2~Z6
(Gardner at25 DEG C), synthon includes：Methacrylic acid, methyl methacrylate, butyl acrylate, methacrylic acid
Butyl ester, polyethylene glycol (600) diacrylate, (3) ethoxyquin trimethylolpropane trimethacrylate, isooctyl methacrylate
In one or more (initiators use such as azodiisobutyronitriles), synthesized by solution polymerization process, preferably AC823G,
One or both of AWR-2512-60.
Preferably, the rust resisting pigment be iron oxide red, it is trbasic zinc phosphate, aluminium triphosphate, water nano phosphate, aqueous
It is one or more in phosphomolybdic acid zinc, organically-modified aluminium molybdenum zinc orthophosphate, strontium chromate, preferably water nano phosphate, aqueous
One or several kinds in phosphomolybdic acid zinc, trbasic zinc phosphate, strontium chromate, the further preferably described rust resisting pigment include weight ratio 4:
0.5~1 trbasic zinc phosphate and aqueous phosphomolybdic acid zinc.
Preferably, the antifoaming agent be organic silicon defoamer or fluorine richness silicone antifoam agent, preferably DF40 antifoaming agent,
941PL antifoaming agent, Tego 902W antifoaming agent, in it is one or more.
Preferably, the sudden strain of a muscle erosion agent is one or more in Raybo 60, Raybo 75, Raybo 80, FA 179,
Preferably FA 179.
Preferably, the substrate wetting agents are polyether siloxane copolymer, preferably wetting agent Tego510, Tego4100,
It is one or more in WET270.
Preferably, the anti-settling thixotropic agent is in bentonite LT, BYK-420, PUR-62, aerosil, RM-8W
It is one or more.
Preferably, the dispersant is polyacrylate and/or polycarboxylic acid salt's dispersant, preferably polyacrylic acid
It is one or more in sodium salt, polycarboxylate sodium, polycarboxylic acids ammonium salt, ammonium polyacrylate salt.
The second aspect of the present invention, provides the preparation method of water-base epoxy shop primer described above, this method include with
Lower step：
(1) by the water-base epoxy ester resin of formula ratio, water soluble acrylate resin, deionized water, pH adjusting agent, dispersion
Agent and rust resisting pigment are put into dispersion tank successively, are uniformly dispersed, then are ground to fineness≤60 μm, preferably≤50 μm, further excellent
≤ 40 μm of choosing；
(2) antifoaming agent of formula ratio, sudden strain of a muscle erosion agent, base material wetting agent, anti-settling thixotropic agent are added to the mixture of step a)
In, filtering is stirred evenly, mixture viscosity >=2.0PaS is adjusted, preferred viscosities=4~10PaS refilter removal of impurities, examine
Packaging.
Beneficial effects of the present invention：
(1) various rust resisting pigments are added using quick-dry type water-base epoxy ester resin, water soluble acrylate resin in the present invention
And aqueous promoter, obtained aqueous dryness is fast, antiseptic property is excellent.
(2) coating curing of coating speed of the present invention is fast, and room temperature 5min, that is, surface drying is not required to toast.
(3) coating film early hardness of the present invention is high, and hardness is up to HB after 12 hours；And heat-resistant stability is good, VOC content
It is low.
(4) the alternative solvent type epoxy shop primer of coating of the present invention is used for railway freight-car and steel construction early stage anti-corrosion.
Specific implementation mode
In order to further appreciate that the present invention, preferred embodiment of the present invention is described with reference to embodiment, below to this
The various aspects of invention are described in detail, and unless specific instructions, various raw materials of the invention can be by being commercially available；Or according to
The conventional method of this field is prepared.Unless otherwise defined or described herein, all professional and scientific terms used herein
It is identical as meaning known to those skilled in the art.It is understood that these descriptions are intended merely to further illustrate
The features and advantages of the present invention, rather than limiting to the claimed invention.
Unless otherwise stated, the test method of the coating property in the application is commonly surveyed using in paint field
Method for testing.
The present invention provides a kind of water-base epoxy shop primer, which includes the composition of following parts by weight：
20 parts~40 parts of water-base epoxy ester resin, 3-12 parts of water-based acrylic resin, 0.1 part~5 parts of pH adjusting agent, base material
0.1 part~4 parts of wetting agent, 1 part~8 parts of dispersant, 5 parts~100 parts of rust resisting pigment, 0.1 part~3 parts of antifoaming agent, anti-flash corrosion inhibitor
0.2 part~5 parts, 0.5 part~5 parts of anti-settling thixotropic agent, 50 parts~140 parts of deionized water.
Wherein, paint binder of the present invention selects water-base epoxy ester resin, water soluble acrylate resin.
The water-base epoxy ester resin average relative molecular mass is big, and dryness is fast, and film is strong to metal adhesion, has excellent
Water resistance, alkali resistance, chemical resistance, smear it is tough and tensile, impact resistance is strong.It is preferred that WAP 5812, YG-EP001, AQ340
One or both of or it is a variety of.
The water soluble acrylate resin, dryness is fast, and water-thinned is good, and film is strong to metal adhesion, to color stuffing
Wetability and dispersibility are good, have excellent water resistance, resistance to alcohol, chemical resistance.It is preferred that in AC823G, AWR-2512-60
One or two.
Rust resisting pigment preferably comprises weight ratio 4:0.5~4, preferably 4:The trbasic zinc phosphate of 0.5-1 and aqueous phosphomolybdic acid zinc, separately
It may include iron oxide red etc. outside.Trbasic zinc phosphate by with zinc, molybdenum it is composite modified after, improve the electrochemistry rustless property of pigment, face
Material is improved with the compatibility of film, the shielding action of film and the adhesive force of film and base material.Organically-modified aluminium molybdenum is just
The time that trbasic zinc phosphate forms effective protective film is short, is conducive to prevent film from getting rusty and blistering, wherein Zn content 38%~40.5%,
Aluminium content 4.0% or so, a small amount of molybdenum can be used in compounding with other pigment, effectively enhance chemical adsorption capacity, prevent gold
Metal surface, which corrodes and provide hydrophobic layer, prevents moisture attacks, to improve the water resistance and corrosion resistance of film.
Contain 5~15% rust resisting pigment based on total weight preferably in coating.
Anti- flash rusting agent or anti-flash corrosion inhibitor are a kind of polar substances, can be adsorbed onto metal substrate surface, and in coating and metal
Between be arranged in a monomolecular film, effectively enhance the chemical adsorption capacity of steel surface, prevent paint film metal watch during dry
There is flash rusting in face, can improve early stage water resistance and salt spray resistance.Such as Raybo 60, Raybo 75, Raybo 80, FA 179
It is one or two or more kinds of.
Preferably, 0.5~1% corrosion inhibitor based on total weight is contained in coating.
It prevents water-base epoxy shop primer from generating bubble in producing and making work progress, needs that defoaming is added in production process
Agent.Antifoaming agent should have following characteristic：1, the surface tension of antifoaming agent is less than the surface tension that need to defoam liquid itself；2, exist
Solubility in paint vehicle is small as possible；3, good dispersibility；4, there is stronger extension；5, finished product water paint cannot be influenced
Performance；6, safe and environment-friendly.Antifoaming agent is preferably organic silicon defoamer or fluorine richness silicone antifoam agent in the present invention, preferably
One or both of DF40 antifoaming agent, 941PL antifoaming agent, Tego 902W antifoaming agent are a variety of.
Preferably, 0.5~1% antifoaming agent based on total weight is contained in coating.
Substrate wetting agents can help coating to moisten a variety of different substrate surfaces, reduce the surface tension of water paint, prevent
The surface defects such as shrinkage cavity or cissing, to improve paint film adhesion and antiseptic property.Substrate wetting agents are polyethers silicon in the present invention
Siloxane copolymers, preferably one or both of wetting agent Tego510, Tego4100, WET270 or a variety of.
Preferably, 0.3~0.5% substrate wetting agents containing total weight in coating.
Dispersant is polyacrylate and/or polycarboxylic acid salt's dispersant, preferably polyacrylic acid sodium salt, sodium polycarboxylate
One or both of salt, polycarboxylic acids ammonium salt, ammonium polyacrylate salt are a variety of；Their the characteristics of, is, in pigment and filler surface
Strong absorption or anchorage effect are generated, there is longer strand to form steric hindrance, the end of the chain has water solubility, and some is also auxiliary to be had
Electrostatic repulsion reaches stable result.It can reduce dope viscosity with good dispersion effect, improve the storage of coating
Stability increases gloss and levelability, such as one or both of Tego760W, Tego752W, BYK190 of Degussa or more
Kind.
Preferably, 0.5~1.5% dispersant based on total weight is contained in coating.
The invention also includes anti-settling thixotropic agent.After anti-settling thixotropic agent is added in water-base epoxy shop primer, coating is sheared
(as stirred or brushing) when force effect, viscosity temporarily declines, not by shearing force when, and be gradually restored to original viscosity.
This characteristic can make coating prevent pigment from precipitating in storage, improve workability.The anti-settling thixotropic agent that the present invention uses is preferred
For one or both of bentonite LT, BYK-420, PUR-62, aerosil, RM-8W or a variety of.
Preferably, the anti-settling thixotropic agent based on total weight 0.2%~0.5% is contained in coating.
The present invention also provides the preparation methods of above-mentioned water-base epoxy shop primer, include the following steps：
(1) by the water-base epoxy ester resin of formula ratio, water soluble acrylate resin, deionized water, pH adjusting agent, dispersion
Agent and rust resisting pigment are put into dispersion tank successively, are uniformly dispersed, then are ground to fineness≤60 μm, preferably≤50 μm, further excellent
≤ 40 μm of choosing；
(2) antifoaming agent of formula ratio, sudden strain of a muscle erosion agent, base material wetting agent, anti-settling thixotropic agent are added to the mixture of step a)
In, filtering is stirred evenly, mixture viscosity >=2.0PaS is adjusted, preferred viscosities=4~10PaS refilter removal of impurities, examine
Packaging.
It is used as steel the present invention also provides the water-base epoxy shop primer or by the water paint prepared by above-mentioned preparation method
The early stage anti-corrosion primer of structure, the early stage anti-corrosion primer purposes for being especially used as railway freight-car vehicle body.Other aspects of the present invention by
It is obvious to those skilled in the art in this disclosure.
Present invention will be further explained below with reference to specific examples.It should be understood that these embodiments are merely to illustrate the present invention
Rather than it limits the scope of the invention.In the following examples, the experimental methods for specific conditions are not specified, is usually marked according to country
Standard measures.If without corresponding national standard, built according to general international standard, normal condition or according to manufacturer
The condition of view carries out.Unless otherwise stated, otherwise all percentage is weight percentage, and the polymer molecular weight is number
Average molecular weight, solvent for use are technical grade.
Embodiment 1：
Weigh the AWR-2512-60 water soluble propenes of sunlight remittance moral AQ340 water-base epoxy esters resin 32Kg, Shenzhen Jia Shengda
Acid ester resin 8kg, deionized water 110Kg, PH conditioning agent MA-95 3kg, the Tego752W dispersant 5Kg of goldschmidt chemical corporation,
BYK420 (Bi Ke chemistry) anti-settling thixotropic agent 2.5Kg, iron oxide red 25Kg, trbasic zinc phosphate 30Kg, aqueous phosphomolybdic acid zinc 25Kg,
1500r/min disperses 15~20min, is then ground to fineness≤40 μm；Degussa Tego902W antifoaming agent 1.5Kg are added,
Anti- 60 2.5Kg of flash rusting agent Raybo of Rui Bao companies of the U.S., WET 270 the substrate wetting agents 1.2Kg, PUR- of goldschmidt chemical corporation
62 anti-settling thixotropic agent 2Kg, 1500r/min disperse 15~20min, are packed after filtering.
Embodiment 2：
Weigh the AWR-2512-60 water soluble propenes of sunlight remittance moral AQ340 water-base epoxy esters resin 28Kg, Shenzhen Jia Shengda
Acid ester resin 10kg, deionized water 100Kg, PH conditioning agent MA-95 2kg, the Tego752W dispersant 4Kg of goldschmidt chemical corporation,
BYK420 (Bi Ke chemistry) anti-settling thixotropic agent 1.5Kg, iron oxide red 20Kg, trbasic zinc phosphate 40Kg, aqueous phosphomolybdic acid zinc 10Kg,
1500r/min disperses 15~20min, is then ground to fineness≤40 μm；Degussa Tego902W antifoaming agent 1Kg are added, it is beautiful
Anti- 60 2.5Kg of flash rusting agent Raybo of Guo Ruibao companies, WET 270 the substrate wetting agents 1.5Kg, PUR-62 of goldschmidt chemical corporation
Anti-settling thixotropic agent 2.5Kg, 1500r/min disperse 15~20min, are packed after filtering.
Comparative example 1 (coating commonly used in the art)：
By in the present invention base-material water-base epoxy ester resin and aqueous soluble acrylic ester resin replacement it is domestic aqueous at certain
Epoxy ester resin (different from base-material of the present invention), remaining is grouped as and contains according to water-base epoxy shop primer each group in the present invention
Amount, it is specific as follows：
Weigh certain common domestic water-base epoxy ester resin (manufacturer：Zhuzhou Lu Po new materials Co., Ltd) 40Kg,
Deionized water 110Kg, PH conditioning agent MA-95 3kg, Tego752W dispersants 5Kg, the BYK420 (Bi Kehua of goldschmidt chemical corporation
Learn) anti-settling thixotropic agent 2.5Kg, iron oxide red 25Kg, trbasic zinc phosphate 30Kg, aqueous phosphomolybdic acid zinc 25Kg, 1500r/min dispersion 15~
Then 20min is ground to fineness≤40 μm；Add Degussa Tego902W antifoaming agent 1.5Kg, the anti-sudden strain of a muscle of Rui Bao companies of the U.S.
Become rusty agent Raybo 60 2.5Kg, the 270 anti-settling thixotropic agent 2Kg of substrate wetting agents 1.2Kg, PUR-62 of WET of goldschmidt chemical corporation,
1500r/min disperses 15~20min, is packed after filtering.
Comparative example 2
It carries out similar to Example 1ly, does not use water soluble acrylate resin only, water-base epoxy ester resin demand is
40Kg。
Comparative example 3
It carries out similar to Example 1ly, does not use water-base epoxy ester resin only, water soluble acrylate resin's dosage is
40Kg。
Comparative example 4
It carries out similar to Example 1ly, only uses water-base epoxy ester resin 20kg, water soluble acrylate resin's dosage
For 20Kg.
Embodiment 1, comparative example the 1-4 water based shop primer prepared respectively are sprayed on steel plate sample, then examined
It surveys, data are as shown in table 1：
1 water based shop primer main performance testing results of table
Compared with coating by coating, comparative example 2-4 that with comparative example 1 prepared by certain domestic water-base epoxy ester resin, it can send out
The water based shop primer rate of drying of the existing present invention is fast, and equally has good antiseptic property, and good heat-resistant stability is excellent
Good adhesive force, the low advantage of VOC content.
Early stage anti-corrosion of the coating of the present invention particularly suitable for steel construction, especially railway freight-car vehicle body.
Water based shop primer provided by the present invention and preparation method thereof is described in detail above.It is used herein
Principle and implementation of the present invention are described for specific case, and the explanation of above example is only intended to help to understand
The method and its core concept of the present invention.It should be pointed out that for those skilled in the art, not departing from this
, can be with several improvements and modifications are made to the present invention under the premise of inventive principle, these improvement and modification also fall into the present invention
In scope of the claims.
Claims (8)
1. a kind of water-base epoxy shop primer, it is characterised in that：The priming paint includes the ingredient of following parts by weight：
2. water-base epoxy shop primer according to claim 1, it is characterised in that：The priming paint include following parts by weight at
Point：
3. water-base epoxy shop primer according to claim 1, it is characterised in that：The priming paint include following parts by weight at
Point：
4. water-base epoxy shop primer according to any one of claim 1-3, it is characterised in that：The water-base epoxy ester
Resin is quick-drying water-base epoxy ester resin, preferably one or more in WAP 5812, YG-EP001, AQ340.
5. the water-base epoxy shop primer according to any one of claim 1-4, it is characterised in that：The aqueous water solubility
Acrylate is quick-drying water-base resin, preferably one or both of AC823G, AWR-2512-60.
6. water-base epoxy shop primer according to any one of claims 1-5, it is characterised in that：The rust resisting pigment is
Iron oxide red, trbasic zinc phosphate, aluminium triphosphate, water nano phosphate, aqueous phosphomolybdic acid zinc, organically-modified aluminium molybdenum zinc orthophosphate,
It is one or more in strontium chromate, one kind preferably in water nano phosphate, aqueous phosphomolybdic acid zinc, trbasic zinc phosphate, strontium chromate
Or it is several, the further preferably described rust resisting pigment includes weight ratio 4:0.5~1 trbasic zinc phosphate and aqueous phosphomolybdic acid zinc；
The pH adjusting agent is N, one or more in N dimethyl ethanol amine, ammonium hydroxide, MA-95；
The antifoaming agent be organic silicon defoamer or fluorine richness silicone antifoam agent, preferably DF40 antifoaming agent, 941PL antifoaming agent,
It is one or more in Tego 902W antifoaming agent；
The anti-flash rusting agent is one or more, the preferably FA in Raybo 60, Raybo 75, Raybo 80, FA 179
179；
The substrate wetting agents are polyether siloxane copolymer, preferably one in wetting agent Tego 510, Tego4100, WET270
Kind is a variety of；
The anti-settling thixotropic agent is one or more in bentonite LT, BYK-420, PUR-62, aerosil, RM-8W；
The dispersant is polyacrylate and/or polycarboxylic acid salt's dispersant, preferably polyacrylic acid sodium salt, sodium polycarboxylate
It is one or more in salt, polycarboxylic acids ammonium salt, ammonium polyacrylate salt.
7. the method for preparing the water-base epoxy shop primer described in any one of claim 1-6, this method includes following step
Suddenly：
(1) the water-base epoxy ester resin of formula ratio, water soluble acrylate resin, pH adjusting agent, deionized water, base material are moistened
Agent, dispersant and rust resisting pigment are put into dispersion tank successively, are uniformly dispersed, then are ground to fineness≤60 μm, preferably≤50 μm, into
One step preferably≤40 μm；
(2) antifoaming agent of formula ratio, anti-flash rusting agent, anti-settling thixotropic agent are added in the mixture of step (1), were stirred evenly
Filter adjusts mixture viscosity >=4.0PaS, and preferred viscosities=4~10PaS refilter removal of impurities, test package.
8. prepared by the water-base epoxy shop primer described in any one of claim 1-6 or the method by claim 7
Priming paint is used as the purposes of the early stage anti-corrosion primer of steel construction, the early stage anti-corrosion primer for being especially used as lorry body.
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| CN111410895A (en) * | 2020-04-20 | 2020-07-14 | 山东七维新材料有限公司 | Quick-drying water-based anticorrosive paint and preparation method thereof |
| CN111925709A (en) * | 2020-08-10 | 2020-11-13 | 中车长江车辆有限公司 | Pre-coated primer for railway wagon and preparation method thereof |
| CN112341909A (en) * | 2020-11-04 | 2021-02-09 | 雅图高新材料股份有限公司 | Quick-drying epoxy protective paint and preparation method thereof |
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| CN111410895A (en) * | 2020-04-20 | 2020-07-14 | 山东七维新材料有限公司 | Quick-drying water-based anticorrosive paint and preparation method thereof |
| CN111925709A (en) * | 2020-08-10 | 2020-11-13 | 中车长江车辆有限公司 | Pre-coated primer for railway wagon and preparation method thereof |
| CN112341909A (en) * | 2020-11-04 | 2021-02-09 | 雅图高新材料股份有限公司 | Quick-drying epoxy protective paint and preparation method thereof |
| CN112898843A (en) * | 2021-01-25 | 2021-06-04 | 湖北东盛特种涂料科技有限公司 | Water-based paint for renovating color steel tiles and unmanned aerial vehicle construction method thereof |
| CN113698851A (en) * | 2021-10-20 | 2021-11-26 | 华豹（天津）新材料科技发展股份有限公司 | Preparation method and application of weldable water-based pre-coating primer |
| CN115651461A (en) * | 2022-09-02 | 2023-01-31 | 山东北方创信防水科技集团股份有限公司 | Primer for preventing spraying quick-setting foaming in summer and preparation process thereof |
| CN115926565A (en) * | 2022-12-28 | 2023-04-07 | 优美特（北京）环境材料科技股份公司 | Water-based epoxy ester paint and preparation method thereof |
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