CN115627110A - Preparation method of water-based epoxy self-emulsifying zinc-rich primer for container - Google Patents
Preparation method of water-based epoxy self-emulsifying zinc-rich primer for container Download PDFInfo
- Publication number
- CN115627110A CN115627110A CN202211381181.8A CN202211381181A CN115627110A CN 115627110 A CN115627110 A CN 115627110A CN 202211381181 A CN202211381181 A CN 202211381181A CN 115627110 A CN115627110 A CN 115627110A
- Authority
- CN
- China
- Prior art keywords
- emulsifying
- water
- zinc
- based epoxy
- zinc powder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- 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
Abstract
The invention discloses a preparation method of a water-based epoxy self-emulsifying zinc-rich primer for a container, wherein the water-based epoxy self-emulsifying zinc-rich primer is prepared by mixing a water-based epoxy self-emulsifying zinc powder primer main agent and a water-based epoxy self-emulsifying zinc powder primer curing agent according to a mixing ratio of 4:1; the water-based epoxy self-emulsifying zinc powder primer main agent comprises the following components in percentage by mass: 10-15% of epoxy emulsion A, 0.5-1% of ethylene glycol butyl ether, 0.5-1% of propylene glycol butyl ether, 0.5-1% of dipropylene glycol butyl ether, 0.5-1% of nonionic dispersant, 0.5-1% of organosilicon defoamer, 0.5-1% of bentonite and 80-85% of zinc powder; the water-based epoxy self-emulsifying zinc powder primer curing agent comprises the following components in percentage by mass: 10-15% of nonionic modified amine B, 0.5-1% of macromolecular acrylic defoaming agent, 0.5-1% of hydrophobic polymer wetting agent, 0.5-1% of bentonite, 2-4% of amine compound and 75-85% of water. The epoxy zinc-rich primer prepared by the invention is attached to the surface of steel, protects the surface of the steel through a sacrificial electrode, can effectively prevent the steel from rusting, and is a foundation stone with the anti-corrosion performance of the whole coating system.
Description
Technical Field
The invention relates to the field of container coatings, in particular to a preparation method of a water-based epoxy self-emulsifying zinc-rich primer for a container.
Background
The traditional water-based epoxy zinc powder paint uses epoxy emulsion C which is emulsified epoxy emulsion, and the emulsion contains a large amount of water, so that the emulsion cannot be used in a zinc powder main agent. The film-forming material in the main agent can only use amine, the viscosity of the film-forming material is high, and a solvent is required to be added for production. The VOC in the coating is high.
The epoxy emulsion in the zinc powder primer main agent of the self-emulsifying system is anhydrous and can be used with zinc powder. The amine B in the curing agent is provided with an emulsifier, and the emulsion emulsification process is completed in the actual paint preparation. Because the viscosity of the epoxy emulsion is lower than that of the amine, the solvent is added in a smaller amount than the traditional model in actual production.
Therefore, the VOC of the zinc powder primer of the self-emulsifying system is much less than that of the traditional water-based epoxy zinc powder paint, and the pollution to the environment is much less.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects of the prior art and provides a preparation method of a waterborne epoxy self-emulsifying zinc-rich primer for a container.
The invention provides the following technical scheme:
the invention relates to a preparation method of a water-based epoxy self-emulsifying zinc-rich primer for a container, which is prepared by mixing a water-based epoxy self-emulsifying zinc powder primer main agent and a water-based epoxy self-emulsifying zinc powder primer curing agent according to a mixing ratio of 4:1;
the water-based epoxy self-emulsifying zinc powder primer main agent comprises the following components in percentage by mass:
10 to 15 percent of epoxy emulsion A, 0.5 to 1 percent of ethylene glycol butyl ether, 0.5 to 1 percent of propylene glycol butyl ether, 0.5 to 1 percent of dipropylene glycol butyl ether, 0.5 to 1 percent of nonionic dispersant, 0.5 to 1 percent of organosilicon defoamer, 0.5 to 1 percent of bentonite and 80 to 85 percent of zinc powder;
the waterborne epoxy self-emulsifying zinc powder primer curing agent comprises the following components in percentage by mass:
10-15% of nonionic modified amine B, 0.5-1% of macromolecular acrylic defoaming agent, 0.5-1% of hydrophobic polymer wetting agent, 0.5-1% of bentonite, 2-4% of amine compound and 75-85% of water.
As a preferred technical scheme of the invention, the epoxy emulsion A adopts epoxy emulsion E-20.
Compared with the prior art, the invention has the following beneficial effects:
the epoxy zinc-rich primer prepared by the invention is attached to the surface of steel, protects the surface of the steel through the sacrificial electrode, can effectively prevent the steel from rusting, and is a foundation stone with the anticorrosion performance of the whole coating system.
Detailed Description
It should be understood that the preferred embodiments described herein are for purposes of illustration and explanation only and are not intended to limit the present invention.
Examples
The invention provides a preparation method of a water-based epoxy self-emulsifying zinc-rich primer for a container, which is prepared by mixing a water-based epoxy self-emulsifying zinc powder primer main agent and a water-based epoxy self-emulsifying zinc powder primer curing agent according to a mixing ratio of 4:1;
the water-based epoxy self-emulsifying zinc powder primer main agent comprises the following components in percentage by mass:
10-15% of epoxy emulsion A, 0.5-1% of ethylene glycol butyl ether, 0.5-1% of propylene glycol butyl ether, 0.5-1% of dipropylene glycol butyl ether, 0.5-1% of nonionic dispersant, 0.5-1% of organosilicon defoamer, 0.5-1% of bentonite and 80-85% of zinc powder;
the water-based epoxy self-emulsifying zinc powder primer curing agent comprises the following components in percentage by mass:
10-15% of nonionic modified amine B, 0.5-1% of macromolecular acrylic defoaming agent, 0.5-1% of hydrophobic polymer wetting agent, 0.5-1% of bentonite, 2-4% of amine compound and 75-85% of water.
The epoxy emulsion A adopts epoxy emulsion E-20;
in the concrete materials in the scheme, the comparison of the mass parts of the main agent of the water-based epoxy self-emulsifying zinc powder primer and the main agent of the traditional water-based epoxy zinc powder primer is shown in the following table:
the comparison of the mass parts of the waterborne epoxy self-emulsifying zinc powder primer curing agent and the traditional waterborne epoxy zinc powder primer curing agent in the scheme is as follows:
the water-based epoxy self-emulsifying zinc-rich primer prepared by the scheme.
The epoxy emulsion is a common raw material, wherein common epoxy resin (such as E-20) is externally connected with a hydrophilic group or an emulsifier to enable the epoxy resin to have certain compatibility with water.
The nonionic modified amine is prepared by reacting aliphatic polyamine with vegetable oil fatty acid and a small amount of epoxy resin to improve certain performance, and is also a common raw material in the market.
Zinc powder is made of metallic zinc, and is one form of zinc.
The scheme has practical use cases on site. The VOC measured on site by the scheme is 50-60g/L. The VOC of the field of the traditional scheme is 100-120g/L. The VOC requirement for aqueous paints is typically 100g/L.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (2)
1. A preparation method of a water-based epoxy self-emulsifying zinc-rich primer for a container is characterized in that the water-based epoxy self-emulsifying zinc-rich primer is prepared by mixing a water-based epoxy self-emulsifying zinc powder primer main agent and a water-based epoxy self-emulsifying zinc powder primer curing agent according to a mixing ratio of 4:1;
the water-based epoxy self-emulsifying zinc powder primer main agent comprises the following components in percentage by mass:
10-15% of epoxy emulsion A, 0.5-1% of ethylene glycol butyl ether, 0.5-1% of propylene glycol butyl ether, 0.5-1% of dipropylene glycol butyl ether, 0.5-1% of nonionic dispersant, 0.5-1% of organosilicon defoamer, 0.5-1% of bentonite and 80-85% of zinc powder;
the waterborne epoxy self-emulsifying zinc powder primer curing agent comprises the following components in percentage by mass:
10-15% of non-ionic modified amine B, 0.5-1% of high molecular acrylic defoaming agent, 0.5-1% of hydrophobic polymer wetting agent, 0.5-1% of bentonite, 2-4% of amine compound and 75-85% of water.
2. The preparation method of the waterborne epoxy self-emulsifying zinc-rich primer for containers as claimed in claim 1, wherein the epoxy emulsion A is epoxy emulsion E-20.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211381181.8A CN115627110A (en) | 2022-11-06 | 2022-11-06 | Preparation method of water-based epoxy self-emulsifying zinc-rich primer for container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211381181.8A CN115627110A (en) | 2022-11-06 | 2022-11-06 | Preparation method of water-based epoxy self-emulsifying zinc-rich primer for container |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115627110A true CN115627110A (en) | 2023-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211381181.8A Withdrawn CN115627110A (en) | 2022-11-06 | 2022-11-06 | Preparation method of water-based epoxy self-emulsifying zinc-rich primer for container |
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| CN (1) | CN115627110A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5569687A (en) * | 1995-03-16 | 1996-10-29 | Rohm And Haas Company | Waterborne zinc-rich primer compositions |
| CN108219623A (en) * | 2017-12-20 | 2018-06-29 | 江苏德威涂料有限公司 | A kind of water-based epoxy zinc-rich primer pre-processed for container and preparation method thereof |
| CN109825169A (en) * | 2019-02-20 | 2019-05-31 | 上海振华重工（集团）常州油漆有限公司 | One kind quick-drying zinc rich primer and its preparation method and application in anhydrous epoxy |
| CN114686070A (en) * | 2020-12-28 | 2022-07-01 | 中海油常州涂料化工研究院有限公司 | Water-based epoxy zinc-rich primer and preparation method thereof |
-
2022
- 2022-11-06 CN CN202211381181.8A patent/CN115627110A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5569687A (en) * | 1995-03-16 | 1996-10-29 | Rohm And Haas Company | Waterborne zinc-rich primer compositions |
| US5652024A (en) * | 1995-03-16 | 1997-07-29 | Rohm And Haas Company | Waterborne zinc-rich primer compositions |
| CN108219623A (en) * | 2017-12-20 | 2018-06-29 | 江苏德威涂料有限公司 | A kind of water-based epoxy zinc-rich primer pre-processed for container and preparation method thereof |
| CN109825169A (en) * | 2019-02-20 | 2019-05-31 | 上海振华重工（集团）常州油漆有限公司 | One kind quick-drying zinc rich primer and its preparation method and application in anhydrous epoxy |
| CN114686070A (en) * | 2020-12-28 | 2022-07-01 | 中海油常州涂料化工研究院有限公司 | Water-based epoxy zinc-rich primer and preparation method thereof |
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Application publication date: 20230120 |
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