CN112920677A - Zinc oxide powder anticorrosive paint - Google Patents
Zinc oxide powder anticorrosive paint Download PDFInfo
- Publication number
- CN112920677A CN112920677A CN202110081973.2A CN202110081973A CN112920677A CN 112920677 A CN112920677 A CN 112920677A CN 202110081973 A CN202110081973 A CN 202110081973A CN 112920677 A CN112920677 A CN 112920677A
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- CN
- China
- Prior art keywords
- parts
- epoxy
- component
- weight
- zinc powder
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- 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
-
- 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)
Abstract
The invention provides an epoxy zinc powder coating which comprises a component A and a component B, wherein the epoxy zinc powder anticorrosive coating comprises the following raw materials in parts by weight: the component A comprises epoxy resin, acrylic resin, zinc powder, mica iron oxide and a plasticizer solvent; the preparation method of the acrylic resin comprises the following steps: step 1: mixing methacrylate, polyvinyl compound and initiator, and heating for polymerization; step 2: under the condition of stirring, adding a silane-protected acrylate monomer with hydroxyl and an organic silicon polymer into the mixture obtained in the step 1, and carrying out polymerization reaction to obtain an acrylic resin product; 5-8 parts of curing agent, 0.5-2.5 parts of reactive solvent, 0.5-0.8 part of adhesion promoter, 2-5 parts of pigment and filler and 3-7 parts of auxiliary agent in the component B. The zinc powder and the mica iron oxide are added into the coating, so that the ultraviolet ray is absorbed, the weather resistance is improved, the substrate adhesion and the interlayer adhesion are improved, and the cost is reduced.
Description
Technical Field
The invention relates to the technical field of anticorrosive coatings, in particular to an epoxy zinc powder anticorrosive coating.
Background
The epoxy paint is mainly applied to corrosion prevention of steel structures and the like in atmospheric environment, particularly, the corrosion prevention performance of the epoxy zinc powder anticorrosive paint is superior to that of a standard epoxy paint, facilities in a strong corrosion environment are protected, and the epoxy zinc powder anticorrosive paint is suitable for various industries, such as offshore facilities, petrochemical plants, pulp mills, paper mills, bridges, power plants and the like. Particularly, the appearance of fast curing products shortens the construction period, so that the application rate of the epoxy zinc powder anticorrosive paint is higher, but the fast curing limits the anticorrosive performance of the paint. If both workability and corrosion resistance are considered, the drying and curing time is correspondingly prolonged compared with the rapid curing time, so that the problem that the corrosion resistance is contradictory to the construction period exists.
Disclosure of Invention
The invention mainly aims to provide an epoxy zinc powder coating to solve the problem that the corrosion resistance and the construction period are contradictory in the prior art.
The invention provides an epoxy zinc powder coating which comprises a component A and a component B, wherein the epoxy zinc powder anticorrosive coating comprises the following raw materials in parts by weight:
the component A comprises 15-20 parts of epoxy resin, 5-10 parts of acrylic resin, 35-45 parts of zinc powder, 15-25 parts of mica iron oxide, 2-3 parts of plasticizer and 6-9 parts of solvent; the preparation method of the acrylic resin comprises the following steps:
step 1: taking 200 parts by weight of methacrylate ester, 320 parts by weight of polyvinyl compound and 0.5-1 part by weight of initiator, stirring and mixing at 0-10 ℃, and heating to 20-30 ℃ for polymerization reaction for 30-60 min;
step 2: under the condition of stirring, adding 150 parts by weight of acrylate monomer with hydroxyl group protected by silane and 50-60 parts by weight of organic silicon polymer into the mixture obtained in the step 1, and carrying out polymerization reaction at 20-30 ℃ for 30-60min to obtain an acrylic resin product;
in the component B, 5-8 parts of curing agent, 0.5-2.5 parts of reactive solvent, 0.5-0.8 part of adhesion promoter, 2-5 parts of pigment and filler and 3-7 parts of auxiliary agent.
Further, the epoxy resin is one or more of bisphenol A epoxy resin, bisphenol F epoxy resin, modified epoxy resin and glycidyl ester;
further, the solvent is one or more of alcohols, esters, ketones, aromatic hydrocarbons, ether alcohols and solvents.
Furthermore, the adhesion promoter is a silane organic matter.
Further, the plasticizer is one or more of hydrocarbon resin, benzyl alcohol, phthalate ester and chlorinated paraffin.
Furthermore, the average grain size of the zinc powder is 2-5 microns, and the average grain size of the mica iron oxide is 20-50 microns.
Further, the curing agent is one or more of alicyclic amine, aliphatic amine, aralkyl amine, aromatic amine polyamine, polyamide, polyethylene glycol amine, alkylene amine, epoxy adduct, aromatic amine adduct and polyamide adduct.
Compared with the prior art, the paint disclosed by the invention has the advantages that zinc powder and mica iron oxide are added into the paint, ultraviolet rays are absorbed, the weather resistance is improved, the substrate adhesive force and the interlayer adhesive force are improved, the cost is reduced, meanwhile, intermediate paint can be omitted during construction, only the paint disclosed by the invention needs to be coated, and the paint has the advantages of corrosion resistance and short construction period.
Detailed Description
In order to make the technical solutions of the present invention better understood by those skilled in the art, the technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.
The components of examples 1-3 of the present invention are specifically shown in the following table: (unit: kg)
| Example 1 | Example 2 | Example 3 | Comparative example | |
| Epoxy resin | 15 | 17 | 20 | 15 |
| Zinc powder | 40 | 35 | 45 | 40 |
| Acrylic resin | 5 | 10 | 10 | 5 |
| Mica iron oxide | 25 | 20 | 15 | 25 |
| Plasticizer | 3 | 2 | 2.5 | 3 |
| Solvent(s) | 6 | 9 | 8 | 6 |
| Curing agent | 6 | 5 | 8 | 6 |
| Reactive solvent | 1.5 | 0.5 | 2.5 | 1.5 |
| Adhesion promoter | 0.5 | 0.8 | 0.6 | 0.5 |
| Pigment and filler | 2 | 5 | 4 | 2 |
| Auxiliary agent | 7 | 3 | 6 | 7 |
Example 1-3 a method for preparing an epoxy zinc powder anticorrosive coating, comprising the steps of:
step 1, weighing raw materials in parts by weight;
step 2, mixing the epoxy resin, the zinc powder, the mica iron oxide, the plasticizer, the acrylic resin and the solvent in the component A, and dispersing at a high speed of 1000r/min for 30min by using a high-speed dispersion machine 800-;
step 3, mixing the curing agent, the reactive solvent, the adhesion promoter, the pigment filler and the auxiliary agent in the component B, and dispersing at a high speed of 1000r/min for 20min by using a high-speed dispersion machine 800-;
and 4, uniformly mixing the component A and the component B according to the proportion, and curing for 30min to obtain the epoxy zinc powder anticorrosive paint.
The epoxy resin in the embodiment 1 and the comparative example is bisphenol A epoxy resin, the epoxy resin in the embodiment 2 is bisphenol F epoxy resin, and the epoxy resin in the embodiment 3 is glycidyl ester;
the solvents in the embodiment 1 and the comparative example are esters, the solvent in the embodiment 2 is a ketone, and the solvent in the embodiment 3 is an ether alcohol;
examples 1 to 3 and comparative example the adhesion promoter was a silane-based organic material;
the plasticizer in the embodiment 1 and the comparative example is hydrocarbon resin, the plasticizer in the embodiment 2 is phthalate, and the plasticizer in the embodiment 3 is chlorinated paraffin.
The curing agent in example 1 and comparative example is alicyclic amine, the curing agent in example 2 is aromatic amine polyamine, and the curing agent in example 3 is alkylene amine.
The preparation method of the acrylic resin used in examples 1 to 3 of the present invention is as follows:
step 1: taking 200 parts by weight of methacrylate, 300 parts by weight of polyvinyl compound and 1 part by weight of initiator, stirring and mixing at 0-5 ℃, and heating to 30 ℃ for polymerization reaction for 60 min;
step 2: under the condition of stirring, 150 parts by weight of acrylate monomer with hydroxyl group protected by silane and 60 parts by weight of organic silicon polymer are added into the mixture obtained in the step 1, and polymerization reaction is carried out for 60min at the temperature of 30 ℃, so as to obtain the acrylic resin of the embodiment of the invention.
Wherein the polyvinyl compound is vinyl ether and divinylbenzene according to a molar ratio of 2: 1, the silane-protected acrylate monomer with hydroxyl is 2- (trimethylsiloxy) ethyl methacrylate, and the organosilicon polymer is silicone oil.
The preparation method of the acrylic resin of the comparative example of the invention is as follows:
step 1: taking 200 parts by weight of methacrylate, 300 parts by weight of polyvinyl compound and 1 part by weight of initiator, stirring and mixing at 0-5 ℃, and heating to 30 ℃ for carrying out polymerization reaction for 60 min;
step 2: under the condition of stirring, 150 parts by weight of acrylate monomer with hydroxyl and 60 parts by weight of organic silicon polymer are added into the mixture obtained in the step 1, and polymerization reaction is carried out for 60min at the temperature of 30 ℃, so as to obtain the acrylic resin of the comparative example of the invention.
Wherein the polyvinyl compound is vinyl ether and divinylbenzene according to a molar ratio of 2: 1, the acrylate monomer with hydroxyl is 2 hydroxyethyl methacrylate, and the organic silicon polymer is silicone oil.
Coating the coatings of the embodiments 1 to 3 and the comparative example of the invention on the surface of a steel plate with the thickness of 20 x 20cm by roller for 3 times, placing the steel plate with the cured coating in an oven with the temperature of 100 ℃ for heating for 24 hours, cooling at room temperature, placing in an environment with the temperature of-10 ℃ for freezing for 24 hours, and repeating for three times; the results of the performance tests are shown in the table below.
The embodiment of the invention adds zinc powder and mica iron oxide into the coating, absorbs ultraviolet rays, improves weather resistance, improves substrate adhesion and interlayer adhesion, reduces cost, can avoid intermediate paint during construction, only needs to coat the coating, and has the advantages of corrosion resistance and short construction period.
Meanwhile, the acrylic resin in the embodiments 1 to 3 adopts the acrylate monomer with hydroxyl protected by silane, so that the hydroxyl of the acrylate monomer is protected by silane, and the hydroxyl is prevented from participating in polymerization reaction, thereby improving the hydroxyl content in the acrylic resin and increasing the viscosity of the acrylic resin. In the elastic emulsion of the comparison example, hydroxyl acrylate monomers are directly adopted for polymerization reaction, so that hydroxyl participates in the polymerization process, the loss of the number of the hydroxyl is caused, the viscosity is reduced, the tolerance to high-temperature and low-temperature alternation is poor in the test process, fine gaps are easy to generate, and the coating can be foamed after long-time use, so that the service life of a metal substrate is influenced.
Finally, it should be noted that the above-mentioned embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above-mentioned embodiments, it should be understood by those skilled in the art that the modifications and equivalents of the specific embodiments of the present invention can be made by those skilled in the art after reading the present specification, but these modifications and variations do not depart from the scope of the claims of the present application.
Claims (7)
1. The epoxy zinc powder anticorrosive paint is characterized by comprising a component A and a component B, and the epoxy zinc powder anticorrosive paint comprises the following raw materials in parts by weight:
the component A comprises 15-20 parts of epoxy resin, 5-10 parts of acrylic resin, 35-45 parts of zinc powder, 15-25 parts of mica iron oxide, 2-3 parts of plasticizer and 6-9 parts of solvent; the preparation method of the acrylic resin comprises the following steps:
step 1: taking 200 parts by weight of methacrylate ester, 320 parts by weight of polyvinyl compound and 0.5-1 part by weight of initiator, stirring and mixing at 0-10 ℃, and heating to 20-30 ℃ for polymerization reaction for 30-60 min;
step 2: under the condition of stirring, adding 150 parts by weight of acrylate monomer with hydroxyl group protected by silane and 50-60 parts by weight of organic silicon polymer into the mixture obtained in the step 1, and carrying out polymerization reaction at 20-30 ℃ for 30-60min to obtain an acrylic resin product;
in the component B, 5-8 parts of curing agent, 0.5-2.5 parts of reactive solvent, 0.5-0.8 part of adhesion promoter, 2-5 parts of pigment and filler and 3-7 parts of auxiliary agent.
2. The zinc oxide powder anticorrosive paint according to claim 1, wherein the epoxy resin is one or more of bisphenol A epoxy resin, bisphenol F epoxy resin, modified epoxy resin, and glycidyl ester.
3. The zinc oxide powder anticorrosive paint according to claim 1, wherein the solvent is one or more of alcohols, esters, ketones, aromatic hydrocarbons, ether alcohols and solvents.
4. The zinc oxide powder anticorrosive paint of claim 1, wherein the adhesion promoter is a silane organic substance.
5. The zinc oxide powder anticorrosive paint according to claim 1, wherein the plasticizer is one or more of hydrocarbon resin, benzyl alcohol, phthalate, and chlorinated paraffin.
6. The epoxy zinc powder anticorrosive paint of claim 1, wherein the average particle size of the zinc powder is 2-5 microns, and the average particle size of the mica iron oxide is 20-50 microns.
7. The zinc oxide powder anticorrosive coating of claim 1, wherein the curing agent is one or more of alicyclic amine, aliphatic amine, aralkyl amine, aromatic amine polyamine, polyamide, polyethylene glycol amine, alkylene amine, epoxy adduct, aromatic amine adduct, and polyamide adduct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110081973.2A CN112920677A (en) | 2021-01-21 | 2021-01-21 | Zinc oxide powder anticorrosive paint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110081973.2A CN112920677A (en) | 2021-01-21 | 2021-01-21 | Zinc oxide powder anticorrosive paint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112920677A true CN112920677A (en) | 2021-06-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110081973.2A Pending CN112920677A (en) | 2021-01-21 | 2021-01-21 | Zinc oxide powder anticorrosive paint |
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| Country | Link |
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| CN (1) | CN112920677A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114045090A (en) * | 2021-12-03 | 2022-02-15 | 海洋化工研究院有限公司 | Primer-topcoat integrated epoxy zinc powder coating and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5932297A (en) * | 1995-12-06 | 1999-08-03 | Kansai Paint Co., Ltd. | Method for formation of coating film |
| CN107868567A (en) * | 2017-11-08 | 2018-04-03 | 北京碧海舟腐蚀防护工业股份有限公司 | Epoxy dust primer, paint form a complete set of thing and application |
-
2021
- 2021-01-21 CN CN202110081973.2A patent/CN112920677A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5932297A (en) * | 1995-12-06 | 1999-08-03 | Kansai Paint Co., Ltd. | Method for formation of coating film |
| CN107868567A (en) * | 2017-11-08 | 2018-04-03 | 北京碧海舟腐蚀防护工业股份有限公司 | Epoxy dust primer, paint form a complete set of thing and application |
Non-Patent Citations (2)
| Title |
|---|
| 关广武等: "嵌段聚合物在涂层材料中的应用进展", 《现代涂料与涂装》 * |
| 王霞等: "《现代建筑涂料——树脂合成与配方设计》", 30 September 2005 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114045090A (en) * | 2021-12-03 | 2022-02-15 | 海洋化工研究院有限公司 | Primer-topcoat integrated epoxy zinc powder coating and preparation method thereof |
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| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20210608 |