CN113881317A - Water-based epoxy zinc-rich primer and preparation method and application thereof - Google Patents
Water-based epoxy zinc-rich primer and preparation method and application thereof Download PDFInfo
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- CN113881317A CN113881317A CN202111313312.4A CN202111313312A CN113881317A CN 113881317 A CN113881317 A CN 113881317A CN 202111313312 A CN202111313312 A CN 202111313312A CN 113881317 A CN113881317 A CN 113881317A
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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
- 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
- C09D5/10—Anti-corrosive paints containing metal dust
- C09D5/106—Anti-corrosive paints containing metal dust containing Zn
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/45—Anti-settling agents
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
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- 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
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0893—Zinc
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Abstract
The invention relates to a water-based epoxy zinc-rich primer and a preparation method and application thereof, wherein the water-based epoxy zinc-rich primer is prepared from the following components in parts by weight of 1: 6, a component A and a component B; wherein the component A consists of modified bisphenol A epoxy resin emulsion and a defoaming agent; the component B consists of a water-soluble modified amine curing agent, a dispersing agent, a film-forming additive, fumed silica, talcum powder, zinc powder, a zinc powder protective agent and an anti-settling agent. The invention has the advantages that: through reasonable matching, the roller coating type waterborne epoxy zinc-rich primer provided by the invention has the advantages that the service life is long, the primer can be continuously recycled for 16 hours, the performance of a coating film is not obviously changed, and the VOC content is lower than 200 g/L; the product effectively solves the defects of high VOC content and high pollution of the solvent-based pretreated epoxy zinc-rich primer and the defects of short service life and slow drying of the common water-based epoxy zinc-rich primer.
Description
The application is a divisional application of an invention patent with application date of 2017, 12 and 20, application number of 201711383267.3, and invention name of 'a waterborne epoxy zinc-rich primer for pretreatment of containers and a preparation method thereof'.
Technical Field
The invention belongs to the field of heavy corrosion resistance, and particularly relates to a water-based epoxy zinc-rich primer as well as a preparation method and application thereof.
Background
The container coating is in the stage of conversion from solvent type to water-based, the pretreatment primer used in many factories is the solvent type epoxy zinc-rich primer, the solvent volatilization is large, the environmental pollution is serious, the used solvent is flammable and explosive, the danger is large, and the physical health of constructors is damaged. The existing water-based epoxy zinc-rich primer for coating lines generally has the defects of short pot life, slow drying and the like, and is not suitable for the requirements of roller coating pretreatment on fast drying and long pot life.
Therefore, it is necessary to develop a water-based epoxy zinc-rich primer which is suitable for roller coating pretreatment, and has fast drying and long working life.
Disclosure of Invention
The invention aims to provide a water-based epoxy zinc-rich primer which is suitable for roller coating pretreatment and has quick drying and long service life and a preparation method thereof.
In order to solve the technical problems, the technical scheme of the invention is as follows: a water-based epoxy zinc-rich primer is prepared from the following components in parts by weight of 1: 6, a component A and a component B; wherein the component A consists of modified bisphenol A epoxy resin emulsion and a defoaming agent; the component B consists of a water-soluble modified amine curing agent, a dispersing agent, a film-forming additive, fumed silica, talcum powder, zinc powder, a zinc powder protective agent and an anti-settling agent;
the water-soluble modified amine curing agent is a propylene glycol methyl ether solution of cardanol modified amine curing agent with the solid content of 80%;
the fumed silica is hydrophilic fumed silica;
the zinc powder protective agent is a water-based long-acting epoxy silane coupling agent.
Further, the component A comprises the following components in parts by weight: 98.0-99.5 parts of modified bisphenol A epoxy resin emulsion and 0.5-2.0 parts of defoaming agent;
the component B comprises the following components in parts by weight: 9.0-12.0 parts of water-soluble modified amine curing agent, 0.5-2.0 parts of dispersing agent, 1.0-2.0 parts of film-forming additive, 0.5-1.0 part of fumed silica, 2.0-4.0 parts of talcum powder, 75-80 parts of zinc powder, 0.5-1.0 part of zinc powder protective agent and 0.5-1.0 part of anti-settling agent.
Further, the defoaming agent in the component A is a water-based organic silicon modified silicon dioxide defoaming agent.
Further, the dispersing agent is a high-molecular block copolymer dispersing agent with an acid value of 9-13 and a solid content of 100% and pigment affinity groups; the film-forming auxiliary agent is dipropylene glycol butyl ether with high boiling point; the particle size of the talcum powder is 2500 meshes, and the water-soluble substance is less than or equal to 0.5 percent; the granularity of the zinc powder is 500-800 meshes, the lead content is less than or equal to 500ppm, and the cadmium content is less than or equal to 100 ppm; the anti-settling agent is organic bentonite;
the solid content of the component B is more than or equal to 93 percent.
The invention also provides a preparation method of the water-based epoxy zinc-rich primer, which comprises the following steps:
(1) preparation of a component A: putting the modified bisphenol A epoxy resin emulsion into a material drawing cylinder, adding a defoaming agent under the stirring of the rotation speed of 400-600rpm, stirring for 10-15 minutes, and uniformly mixing to obtain a component A;
(2) b, preparation of a component: adding a water-soluble modified amine curing agent, a dispersing agent and a film-forming aid into a mixing tank, and stirring at a rotating speed of 400-600rpm for 5-10 minutes; then sequentially adding fumed silica, talcum powder and zinc powder, adjusting the stirring speed to 1000-1200rpm, stirring and dispersing for 15-20 minutes until the fineness is less than or equal to 50 mu m and the temperature is less than or equal to 60 ℃; sequentially adding the rest raw materials, stirring at the rotation speed of 400-600rpm for 10-15 minutes, and uniformly mixing to obtain a component B;
(3) preparing a primer: adding the component A into the component B at the rotating speed of 400-600rpm, stirring for 5-10 minutes until complete emulsification is achieved, and obtaining the water-based epoxy zinc-rich primer, wherein the weight ratio of the component A to the component B is 1: 6;
and (3) no time sequence limitation exists between the step (1) and the step (2).
The invention also provides the application of the waterborne epoxy zinc-rich primer in the technical scheme or the waterborne epoxy zinc-rich primer prepared by the preparation method in the technical scheme in roll coating construction.
Further, water is adopted as a diluent in the construction of the water-based epoxy zinc-rich primer;
the mass of the water is 10% of that of the water-based epoxy zinc-rich primer.
The invention has the advantages that:
(1) according to the water-based epoxy zinc-rich primer disclosed by the invention, the component A is a modified and modified bisphenol A epoxy resin emulsion, the reaction activity is low, the reaction time after mixing of the A, B components can be effectively prolonged, the problem of short service life of a common water-based epoxy zinc-rich primer is effectively solved, and the service life can be as long as 16 hours; meanwhile, the modified bisphenol A epoxy resin emulsion has high film forming temperature, has the characteristic of quick drying of a single-component paint film, and can effectively prevent the paint film from being adhered due to stacking of plates; the component B is prepared by matching a water-soluble modified amine curing agent with other raw materials such as zinc powder and the like to prepare a high-solid water-free component B with a solid content of more than 93%, the high-solid water-free component B is matched with the component A to effectively reduce the VOC content in the product, the VOC content is below 200g/L, water is used as a diluent during construction, the emission of an organic solvent is effectively reduced, and the problem of great environmental pollution of the solvent type epoxy zinc-rich primer is solved.
Furthermore, the water-based epoxy zinc-rich primer disclosed by the invention selects low-lead zinc powder of 500-800 meshes, the content of heavy metal lead is less than 500ppm, the content of heavy metal cadmium is less than 100ppm, and the pollution of heavy metal to the environment is reduced;
furthermore, the water-based epoxy zinc-rich primer adopts the water-based long-acting silane coupling agent as a zinc powder protective agent, forms a hydrophobic protective layer through the interaction of hydrolysis and the zinc powder surface, can keep the stability of the zinc powder in water for a long time in the construction process, and can improve the adhesive force of a paint film on a steel plate through the interaction of the silane coupling agent hydrolysis and the metal surface;
furthermore, the water-based epoxy zinc-rich primer disclosed by the invention adopts an organic bentonite dust-proof agent, and forms a three-dimensional network structure through stirring, shearing and activating, so that the problem of zinc powder sedimentation in the storage process is effectively prevented;
furthermore, the waterborne epoxy zinc-rich primer for pretreatment of the container selects hydrophilic fumed silica, and silicon hydroxyl on the surface of the hydrophilic fumed silica can form a three-dimensional network structure in a waterborne system through hydrogen bonds and van der Waals force, so that the zinc powder is prevented from settling due to low viscosity of the system in the construction process;
furthermore, the waterborne epoxy zinc-rich primer disclosed by the invention adopts the high-boiling-point dipropylene glycol butyl ether as a film-forming aid, so that after the moisture of a paint film is volatilized, emulsion resin droplets are fused before the epoxy resin is crosslinked and cured to form a continuous coating film.
Through the reasonable matching, the roller coating type waterborne epoxy zinc-rich primer provided by the invention has the advantages that the service life is long, the primer can be continuously recycled for 16 hours, the performance of a coating film is not obviously changed, and the VOC content is lower than 200 g/L; the product effectively solves the defects of high VOC content and high pollution of the solvent-based pretreated epoxy zinc-rich primer and the defects of short service life and slow drying of the common water-based epoxy zinc-rich primer.
Detailed Description
The following examples are presented to enable one of ordinary skill in the art to more fully understand the present invention and are not intended to limit the scope of the embodiments described herein.
Example 1
The embodiment is a waterborne epoxy zinc-rich primer for pretreatment of a container, wherein the component A (weight): 199kg of modified bisphenol A epoxy resin emulsion and 1kg of defoaming agent are adopted, and H-502-42W of DIC company and BYK-024 of BYK company serving as defoaming agent are adopted as the modified bisphenol A epoxy resin emulsion.
The modified bisphenol A epoxy resin emulsion and the defoaming agent are added in proportion and stirred at the rotating speed of 400-600rpm for 10-15 minutes to be uniformly mixed to prepare the component A.
B component (weight): 200kg of water-soluble modified amine curing agent, 30kg of dispersing agent, 18kg of film-forming additive, 13.5kg of fumed silica, 50kg of talcum powder, 1350kg of zinc powder, 15kg of zinc powder protective agent and 12kg of anti-settling agent.
The water-soluble modified amine curing agent is a propylene glycol methyl ether solution (Kadelian NX-8106PM80) of cardanol modified amine curing agent with the solid content of 80%; the dispersant adopts a high molecular block copolymer dispersant (MIX SPERSE900 of a new stanneless Mikoss material) with 100 percent of solid content and pigment affinity groups; the film-forming assistant is high-boiling dipropylene glycol butyl ether (DPNB of DOWCEMICAL); the fumed silica adopts A200 of Yingchuangdegussa; the zinc powder is 800-mesh low-lead zinc powder rich in rainbow in Hunan; the zinc powder protective agent is water-based long-acting silane coupling agent (Wetlink 78 of GE SILICONE); the anti-settling agent is activated organobentonite (Haimanshi SD-3).
Adding the modified amine curing agent, the dispersing agent and the film-forming additive into a mixing tank, and stirring at the rotating speed of 400-600rpm for 5-10 minutes; then sequentially adding fumed silica, talcum powder and zinc powder, adjusting the stirring rotating speed to 1000-1200rpm, stirring and dispersing for 15-20 minutes until the fineness is less than or equal to 50 mu m and the temperature is less than or equal to 60 ℃; then, the rest raw materials are added in turn, the rotating speed is 400-.
A roll coating type waterborne epoxy zinc-rich primer A comprises the following components: the component B comprises the following components in proportion of 1: 6, mixing and stirring at high speed for 5-10 minutes, adding tap water 10% of the total amount, and uniformly mixing for construction.
Example 2
The embodiment is a waterborne epoxy zinc-rich primer for pretreatment of a container, wherein the component A (weight): 196kg of modified bisphenol A epoxy resin emulsion and 4kg of defoaming agent are adopted, wherein H-502-42W of DIC company and BYK-024 of BYK company can be adopted as the modified bisphenol A epoxy resin emulsion.
The modified bisphenol A epoxy resin emulsion and the defoaming agent are added in proportion and stirred at the rotating speed of 400-600rpm for 10-15 minutes to be uniformly mixed to prepare the component A.
B component (weight): 180kg of water-soluble modified amine curing agent, 40kg of dispersing agent, 40kg of film-forming additive, 20kg of fumed silica, 80kg of talcum powder, 1600kg of zinc powder, 20kg of zinc powder protective agent and 20kg of anti-settling agent.
The water-soluble modified amine curing agent is a propylene glycol methyl ether solution (Kadelian NX-8106PM80) of cardanol modified amine curing agent with the solid content of 80%; the dispersant adopts a high molecular block copolymer dispersant (MIX SPERSE900 of a new stanneless Mikoss material) with 100 percent of solid content and pigment affinity groups; the film-forming assistant is high-boiling dipropylene glycol butyl ether (DPNB of DOWCEMICAL); the fumed silica adopts A200 of Yingchuangdegussa; the zinc powder is 800-mesh low-lead zinc powder rich in rainbow in Hunan; the zinc powder protective agent is water-based long-acting silane coupling agent (Wetlink 78 of GE SILICONE); the anti-settling agent is activated organobentonite (Haimanshi SD-3).
Adding the modified amine curing agent, the dispersing agent and the film-forming additive into a mixing tank, and stirring at the rotating speed of 400-600rpm for 5-10 minutes; then sequentially adding fumed silica, talcum powder and zinc powder, adjusting the stirring rotating speed to 1000-1200rpm, stirring and dispersing for 15-20 minutes until the fineness is less than or equal to 50 mu m and the temperature is less than or equal to 60 ℃; then, the rest raw materials are added in turn, the rotating speed is 400-.
A roll coating type waterborne epoxy zinc-rich primer A comprises the following components: the component B comprises the following components in proportion of 1: 6, mixing and stirring at high speed for 5-10 minutes, adding tap water 10% of the total amount, and uniformly mixing for construction.
Example 3
The embodiment is a waterborne epoxy zinc-rich primer for pretreatment of a container, wherein the component A (weight): 198kg of modified bisphenol A epoxy resin emulsion and 2kg of defoaming agent are adopted, and H-502-42W of DIC company and BYK-024 of BYK company serving as defoaming agent are adopted as the modified bisphenol A epoxy resin emulsion.
The modified bisphenol A epoxy resin emulsion and the defoaming agent are added in proportion and stirred at the rotating speed of 400-600rpm for 10-15 minutes to be uniformly mixed to prepare the component A.
B component (weight): 220kg of water-soluble modified amine curing agent, 25kg of dispersing agent, 30kg of film-forming additive, 15kg of fumed silica, 60kg of talcum powder, 1550kg of zinc powder, 15kg of zinc powder protective agent and 15kg of anti-settling agent.
The water-soluble modified amine curing agent is a propylene glycol methyl ether solution (Kadelian NX-8106PM80) of cardanol modified amine curing agent with the solid content of 80%; the dispersant adopts a high molecular block copolymer dispersant (MIX SPERSE900 of a new stanneless Mikoss material) with 100 percent of solid content and pigment affinity groups; the film-forming assistant is high-boiling dipropylene glycol butyl ether (DPNB of DOWCEMICAL); the fumed silica adopts A200 of Yingchuangdegussa; the zinc powder is 800-mesh low-lead zinc powder rich in rainbow in Hunan; the zinc powder protective agent is water-based long-acting silane coupling agent (Wetlink 78 of GE SILICONE); the anti-settling agent is activated organobentonite (Haimanshi SD-3).
Adding the modified amine curing agent, the dispersing agent and the film-forming additive into a mixing tank, and stirring at the rotating speed of 400-600rpm for 5-10 minutes; then sequentially adding fumed silica, talcum powder and zinc powder, adjusting the stirring rotating speed to 1000-1200rpm, stirring and dispersing for 15-20 minutes until the fineness is less than or equal to 50 mu m and the temperature is less than or equal to 60 ℃; then, the rest raw materials are added in turn, the rotating speed is 400-.
A roll coating type waterborne epoxy zinc-rich primer A comprises the following components: the component B comprises the following components in proportion of 1: 6, mixing and stirring at high speed for 5-10 minutes, adding tap water 10% of the total amount, and uniformly mixing for construction.
The test panel production conditions are as in table 1:
TABLE 1 production conditions of test panels in examples of the present invention
Description of the test:
4, 6 tests select a tin plate for the performance; 5. the soft steel plate is selected for 7 properties. The test piece has a size of 150mm x 70mm x (0.3 to 0.5) mm, and the surface treatment is carried out as specified in GB/T9721. 8. The 9 performances are 150mm multiplied by 70mm multiplied by (1.6-2.0) mm sandblasted steel plates with a sandblasting grade SA 2.5.
The results of the tests using the relevant standard methods are shown in Table 2:
table 2 results of performance tests on test panels in examples of the present invention
As can be seen from the table 2, the roller coating type waterborne epoxy zinc-rich primer provided by the invention has the advantages that the service life is long, the continuous cycle use is carried out for 16 hours, the performance of a coating film is not obviously changed, and the VOC content is lower than 200 g/L; the product effectively solves the final difficulty of water-based container coating, namely the defects of high VOC content and high pollution of the solvent type pretreated epoxy zinc-rich primer and the defects of short service life and slow drying of the common water-based epoxy zinc-rich primer.
The foregoing shows and describes the general principles and features of the present invention, together with the advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. The water-based epoxy zinc-rich primer is characterized by comprising the following components in parts by weight: the water-based epoxy zinc-rich primer is prepared from the following components in parts by weight of 1: 6, a component A and a component B; wherein the component A consists of modified bisphenol A epoxy resin emulsion and a defoaming agent; the component B consists of a water-soluble modified amine curing agent, a dispersing agent, a film-forming additive, fumed silica, talcum powder, zinc powder, a zinc powder protective agent and an anti-settling agent;
the water-soluble modified amine curing agent is a propylene glycol methyl ether solution of cardanol modified amine curing agent with the solid content of 80%;
the fumed silica is hydrophilic fumed silica;
the zinc powder protective agent is a water-based long-acting epoxy silane coupling agent.
2. The waterborne epoxy zinc rich primer of claim 1, wherein: the component A comprises the following components in parts by weight: 98.0-99.5 parts of modified bisphenol A epoxy resin emulsion and 0.5-2.0 parts of defoaming agent;
the component B comprises the following components in parts by weight: 9.0-12.0 parts of water-soluble modified amine curing agent, 0.5-2.0 parts of dispersing agent, 1.0-2.0 parts of film-forming additive, 0.5-1.0 part of fumed silica, 2.0-4.0 parts of talcum powder, 75-80 parts of zinc powder, 0.5-1.0 part of zinc powder protective agent and 0.5-1.0 part of anti-settling agent.
3. The waterborne epoxy zinc rich primer of claim 1, wherein: the defoaming agent is a water-based organic silicon modified silicon dioxide defoaming agent.
4. The waterborne epoxy zinc rich primer of claim 1, wherein: the dispersing agent is a high-molecular block copolymer dispersing agent with an acid value of 9-13 and a solid content of 100% and pigment affinity groups; the film-forming auxiliary agent is dipropylene glycol butyl ether with high boiling point; the particle size of the talcum powder is 2500 meshes, and the water-soluble substance is less than or equal to 0.5 percent; the granularity of the zinc powder is 500-800 meshes, the lead content is less than or equal to 500ppm, and the cadmium content is less than or equal to 100 ppm; the anti-settling agent is organic bentonite;
the solid content of the component B is more than or equal to 93 percent.
5. A preparation method of the water-based epoxy zinc-rich primer according to any one of claims 1 to 4, characterized by comprising the following steps: the method comprises the following steps:
(1) preparation of a component A: putting the modified bisphenol A epoxy resin emulsion into a batching pull cylinder, adding a defoaming agent while stirring at the rotating speed of 400-600rpm, stirring for 10-15 minutes, and uniformly mixing to obtain a component A;
(2) b, preparation of a component: adding a water-soluble modified amine curing agent, a dispersing agent and a film-forming aid into a mixing tank, and stirring at a rotating speed of 400-600rpm for 5-10 minutes; then sequentially adding fumed silica, talcum powder and zinc powder, adjusting the stirring speed to 1000-1200rpm, stirring and dispersing for 15-20 minutes until the fineness is less than or equal to 50 mu m and the temperature is less than or equal to 60 ℃; then, sequentially adding the rest raw materials, stirring at the rotation speed of 400-600rpm for 10-15 minutes, and uniformly mixing to obtain a component B;
(3) preparing a primer: adding the component A into the component B at the rotating speed of 400-600rpm, stirring for 5-10 minutes until complete emulsification is achieved, and obtaining the water-based epoxy zinc-rich primer, wherein the weight ratio of the component A to the component B is 1: 6;
and (3) no time sequence limitation exists between the step (1) and the step (2).
6. The application of the water-based epoxy zinc-rich primer according to any one of claims 1 to 4 or the water-based epoxy zinc-rich primer prepared by the preparation method according to claim 5 in roll coating construction.
7. The use of claim 6, wherein the waterborne epoxy zinc rich primer uses water as a diluent in construction;
the mass of the water is 10% of that of the water-based epoxy zinc-rich primer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111313312.4A CN113881317B (en) | 2017-12-20 | 2017-12-20 | Water-based epoxy zinc-rich primer and preparation method and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711383267.3A CN108219623A (en) | 2017-12-20 | 2017-12-20 | A kind of water-based epoxy zinc-rich primer pre-processed for container and preparation method thereof |
| CN202111313312.4A CN113881317B (en) | 2017-12-20 | 2017-12-20 | Water-based epoxy zinc-rich primer and preparation method and application thereof |
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| CN201711383267.3A Division CN108219623A (en) | 2017-12-20 | 2017-12-20 | A kind of water-based epoxy zinc-rich primer pre-processed for container and preparation method thereof |
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| CN113881317A true CN113881317A (en) | 2022-01-04 |
| CN113881317B CN113881317B (en) | 2022-07-26 |
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| CN201711383267.3A Pending CN108219623A (en) | 2017-12-20 | 2017-12-20 | A kind of water-based epoxy zinc-rich primer pre-processed for container and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109233559A (en) * | 2018-08-06 | 2019-01-18 | 浩力森涂料（上海）有限公司 | A kind of high-performance water-based container zinc-rich paint and its manufacturing method |
| CN109233563A (en) * | 2018-08-09 | 2019-01-18 | 浩力森涂料（上海）有限公司 | A kind of normal temperature quick-drying type water-based epoxy zinc-rich primer and its preparation process |
| CN109181475B (en) * | 2018-08-20 | 2021-02-26 | 常州市天安特种涂料有限公司 | Environment-friendly anticorrosive wear-resistant coating for ship water line area and preparation method thereof |
| CN109294399A (en) * | 2018-10-16 | 2019-02-01 | 无锡市太湖防腐材料有限公司 | Steel surface anti-corrosion water-based epoxy zinc-rich primer and preparation method thereof |
| CN110128917A (en) * | 2019-06-14 | 2019-08-16 | 绵阳麦思威尔科技有限公司 | Low-VOC aqueous epoxy zinc rich primer and preparation method thereof |
| CN110343444B (en) * | 2019-07-09 | 2021-08-10 | 上海瀚岱化学有限公司 | Epoxy zinc-rich primer and preparation method thereof |
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| CN115627110A (en) * | 2022-11-06 | 2023-01-20 | 中远关西涂料（上海）有限公司 | Preparation method of water-based epoxy self-emulsifying zinc-rich primer for container |
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| Publication number | Publication date |
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| CN113881317B (en) | 2022-07-26 |
| CN108219623A (en) | 2018-06-29 |
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