CN112646451A - Hierarchical-pore nano-zeolite modified epoxy ceramic coating - Google Patents
Hierarchical-pore nano-zeolite modified epoxy ceramic coating Download PDFInfo
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- CN112646451A CN112646451A CN202011421947.1A CN202011421947A CN112646451A CN 112646451 A CN112646451 A CN 112646451A CN 202011421947 A CN202011421947 A CN 202011421947A CN 112646451 A CN112646451 A CN 112646451A
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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
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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
- C09D7/61—Additives non-macromolecular inorganic
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other 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
- 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
- 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
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
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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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
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Abstract
A hierarchical pore nano zeolite modified epoxy ceramic coating relates to an epoxy ceramic coating, which comprises a component I and a component II; calculating according to mass fraction: the component one is a base material of the coating and comprises the following components: 20-80 parts of epoxy resin; 10-60 parts of superfine glass fiber; 10-30 parts of hierarchical pore nano zeolite; 10-30 parts of a solvent; the component two is a coating curing agent and comprises the following components: 10-40 parts of a curing agent; 10-30 parts of a solvent; the mass ratio of the first component to the second component is 100: 15-100: 80. the invention overcomes the problem that the mechanical property of the coating is reduced due to large addition amount of the antirust pigment in the traditional coating. According to the invention, the corrosion inhibitor-loaded hierarchical porous nano zeolite and the surface-modified superfine glass fiber are added into the epoxy coating, so that the corrosion resistance, toughness and hardness of the epoxy coating are obviously improved, and the usage amount of the antirust pigment is reduced. The coating has wide application in bridges, ships and industrial and traffic facilities.
Description
Technical Field
The invention relates to an epoxy ceramic coating, in particular to a hierarchical porous nano zeolite modified epoxy ceramic coating.
Background
The epoxy coating is widely applied to metal corrosion prevention in the fields of bridges, ships, industrial facilities and the like. At present, adding active antirust pigment into epoxy resin to effectively improve the corrosion resistance of epoxy coating is the most important means. Although these methods can improve the corrosion resistance of the epoxy coating to some extent, they have some drawbacks, which in turn affect the service life of the coating. The main problems that exist are: (1) the hardness of the coating is not obviously improved, the hardness of a pencil is only 3H, and the pencil is easy to damage and is not wear-resistant under mechanical force; (2) the predetermined effect can be achieved only by adding more antirust raw materials, and the mechanical property of the epoxy coating is weakened by adding more antirust pigments.
Disclosure of Invention
The invention aims to provide a hierarchical pore nano zeolite modified epoxy ceramic coating, which utilizes micro-nano pores of hierarchical pore nano zeolite to load a corrosion inhibitor, improves the corrosion resistance of the coating, reduces the using amount of an antirust pigment, and improves the toughness of the coating. Meanwhile, the hardness of the coating is improved by adding the superfine glass fiber on the premise of not losing the toughness of the epoxy coating, so that the epoxy coating is endowed with more excellent comprehensive performance.
The purpose of the invention is realized by the following technical scheme:
a hierarchical pore nano zeolite modified epoxy ceramic coating comprises a component I and a component II; calculating according to mass fraction:
the component one is a base material of the coating and comprises the following components:
20-80 parts of epoxy resin;
10-60 parts of superfine glass fiber;
10-30 parts of hierarchical pore nano zeolite;
10-30 parts of a solvent;
the component two is a coating curing agent and comprises the following components:
10-40 parts of a curing agent;
10-30 parts of a solvent;
the mass ratio of the first component to the second component is 100: 15-100: 80.
the epoxy resin is suitable for single general epoxy resin, such as bisphenol A type epoxy resin, bisphenol F type epoxy resin and the like, or mixed resin of two epoxy resins.
The hierarchical pore nano zeolite modified epoxy ceramic coating is applicable to common amine curing agents.
The hierarchical pore nano zeolite modified epoxy ceramic coating has the particle size of 100-800 nm.
The diameter of the superfine glass fiber is 7-12 mu m, the length of the superfine glass fiber is 20-40 mu m, and the surface of the superfine glass fiber is treated by a silane coupling agent, so that the superfine glass fiber and epoxy resin have good interface binding force.
The hierarchical pore nano zeolite modified epoxy ceramic coating is characterized in that the corrosion inhibitor is general benzotriazole.
The hierarchical pore nano zeolite modified epoxy ceramic coating is prepared from the following components by the following method:
(1) preparation of component one: adding epoxy resin, superfine glass fiber, corrosion inhibitor-loaded multi-stage pore nano zeolite, a solvent and an auxiliary agent into a stainless steel tank, and dispersing at a high speed for 10-50 minutes by adopting a high-speed dispersion machine at 800-2000 rmp;
(2) preparation of component two: and adding a curing agent and a solvent into a stainless steel tank, and dispersing at a high speed of 400-2000 rmp for 10-30 minutes to obtain the nano-silver/.
The hierarchical pore nano zeolite modified epoxy ceramic coating is prepared by performing surface modification treatment on superfine glass fibers, mixing the superfine glass fibers, a silane coupling agent, absolute ethyl alcohol and water according to the following mass ratio, stirring for 0.5-8 hours at 400-1200 rpm of a high-speed disperser, filtering and drying:
80-100 parts of superfine glass fiber;
50-150 parts of absolute ethyl alcohol;
0.1-8 parts of a silane coupling agent;
0.5-10% of water.
The corrosion inhibitor-loaded hierarchical pore nano zeolite modified epoxy ceramic coating is prepared by the following method:
(1) mixing and stirring aluminum isopropoxide, ethyl orthosilicate, tetrapropylammonium hydroxide and absolute ethyl alcohol at room temperature for 3-8 hours, and then placing the mixture in a polytetrafluoroethylene hydrothermal reaction kettle for crystallization for 1-3 days at the temperature of 120-. Washing, drying and roasting the product at 550 ℃;
(2) dispersing 1-10 g of hierarchical porous nano zeolite into 50ml of absolute ethyl alcohol, adding 10-30 g of benzotriazole, performing reduced pressure adsorption for 12-48 hours, washing, filtering and drying to obtain the corrosion inhibitor-loaded hierarchical porous nano zeolite.
The hierarchical pore nano zeolite modified epoxy ceramic coating is prepared by mixing the first component and the second component, and curing at a temperature ranging from 5 to 50 DEG CoC, curing for 6 hours to 7 days.
The invention has the advantages and effects that:
(1) the corrosion resistance of the coating is improved by the corrosion inhibitor loaded hierarchical pore nano zeolite.
(2) Effectively reduces the dosage of the anti-rust pigment.
(3) The superfine glass fiber effectively improves the hardness of the coating.
According to the invention, the corrosion inhibitor-loaded hierarchical porous nano zeolite and the surface-modified superfine glass fiber are added into the epoxy coating, so that the corrosion resistance and hardness of the epoxy coating are obviously improved, and the usage amount of the antirust pigment is reduced.
The performance evaluation of the coating is mainly as follows: cross cut adhesion, pencil hardness test, flexibility, and neutral salt spray test. The salt spray test is carried out for 500 hours, and the maximum width of the extension of the scratch on the surface of the test board is measured after the test is finished.
Detailed Description
The present invention will be described in detail with reference to examples.
Composition example 1
80g of E44 epoxy resin, 16g of xylene and 4g of n-butanol were added to a stainless steel can, dispersed for 5 minutes, and 40g of zinc phosphate was added and dispersed at high speed (1000 rmp) for 30 minutes to obtain component one of the coating.
50g of T31 epoxy hardener, 6g of xylene and 2g of n-butanol were added to a stainless steel pot and dispersed at high speed (1000 rmp) for 30 minutes to give coating component two.
The first component and the second component are 100: mixing at 25 deg.C, making test sample by air spraying, and curing at room temperature for 7 days for testing various performances.
Composition example 2
80g of E44 epoxy resin, 8g of xylene and 2g of n-butanol are added to a stainless steel tank, dispersed for 5 minutes, 40g of iron oxide red is added, and dispersed at high speed (1000 rmp) for 30 minutes to obtain component one of the coating.
50g of T31 epoxy hardener, 6g of xylene and 2g of n-butanol were added to a stainless steel pot and dispersed at high speed (1000 rmp) for 30 minutes to give coating component two.
The first component and the second component are 100: mixing at 25 deg.C, making test sample by air spraying, and curing at room temperature for 7 days for testing various performances.
Example 1
The superfine glass fiber is subjected to surface treatment. Dissolving 10 silane coupling agent into 200ml of absolute ethyl alcohol, simultaneously adding 5ml of deionized water, uniformly stirring, then adding 50g of superfine glass fiber into the solution, stirring for 30 minutes at the rotating speed of 600rmp by adopting a high-speed dispersion machine, standing for 24 hours, filtering and drying to obtain the silane coupling agent modified superfine glass fiber.
And (II) preparing the corrosion inhibitor-loaded hierarchical pore nano zeolite.
(1) 0.3g of aluminum isopropoxide, 6.8g of tetrapropylammonium hydroxide and 70ml of absolute ethanol were mixed and stirred for 30 minutes to obtain component one. 10ml of ethyl orthosilicate and 50ml of absolute ethyl alcohol are mixed and stirred for 30 minutes to obtain a component II. Mixing the first component and the second component, stirring for 5 hours, placing into a polytetrafluoroethylene reaction kettle for crystallization at 180 ℃ for 24 hours, washing the product to be neutral by deionized water, and then drying in an oven at 100 ℃ for 12 hours. And roasting the product at 550 ℃ for 6 hours to obtain the hierarchical pore nano zeolite.
(2) Dispersing 10g of hierarchical porous nano zeolite into 50ml of absolute ethyl alcohol, adding 10g of benzotriazole, performing reduced pressure adsorption for 48 hours, washing, filtering and drying to obtain the corrosion inhibitor-loaded hierarchical porous nano zeolite. Wherein the load rate of the benzotriazole is 25 percent.
80g of E44 epoxy resin, 16g of dimethylbenzene and 4g of n-butyl alcohol are added into a stainless steel tank, dispersed for 5 minutes, 40g of superfine glass fiber prepared in the embodiment 1 and 10g of multi-level pore nano zeolite loaded with corrosion inhibitor prepared in the embodiment 1 are added, and dispersed at high speed (1000 rmp) for 30 minutes to obtain the component I of the coating.
60g of T31 epoxy hardener, 10g of xylene and 4g of n-butanol were added to a stainless steel pot and dispersed at high speed (1000 rmp) for 30 minutes to give coating component two.
The first component and the second component are 100: mixing at 20 deg.C, making test sample by air spraying, and curing at room temperature for 7 days for testing various performances.
Example 2
80g of E44 epoxy resin, 16g of dimethylbenzene and 4g of n-butyl alcohol are added into a stainless steel tank, the mixture is dispersed for 5 minutes, 60g of superfine glass fiber prepared in the embodiment 1 is added, 10g of multi-level pore nano zeolite loaded with the corrosion inhibitor prepared in the embodiment 1 is added, and the mixture is dispersed at a high speed (1000 rmp) for 30 minutes to obtain a component I of the coating.
50g of T31 epoxy hardener, 10g of xylene and 4g of n-butanol were added to a stainless steel pot and dispersed at high speed (1000 rmp) for 30 minutes to give coating component two.
The first component and the second component are 100: mixing at 20 deg.C, making test sample by air spraying, and curing at room temperature for 7 days for testing various performances.
TABLE 1 paint Performance test Table
Claims (10)
1. The hierarchical pore nano zeolite modified epoxy ceramic coating is characterized by comprising a first component and a second component; calculating according to mass fraction:
the component one is a base material of the coating and comprises the following components:
20-80 parts of epoxy resin;
10-60 parts of superfine glass fiber;
10-30 parts of hierarchical pore nano zeolite;
10-30 parts of a solvent;
the component two is a coating curing agent and comprises the following components:
10-40 parts of a curing agent;
10-30 parts of a solvent;
the mass ratio of the first component to the second component is 100: 15-100: 80.
2. the multi-stage pore nano zeolite modified epoxy ceramic coating as claimed in claim 1, wherein the epoxy resin is suitable for single general epoxy resin such as bisphenol A type epoxy resin, bisphenol F type epoxy resin, etc. or mixed resin of two epoxy resins.
3. The hierarchical porous nano zeolite modified epoxy ceramic paint as claimed in claim 1, wherein the curing agent is amine curing agent commonly used.
4. The hierarchical porous nano zeolite modified epoxy ceramic coating as claimed in claim 1, wherein the grain size of the hierarchical porous nano zeolite is 100-800 nm.
5. The hierarchical pore nano zeolite modified epoxy ceramic coating as claimed in claim 1, wherein the diameter of the ultrafine glass fiber is 7-12 μm, the length of the ultrafine glass fiber is 20-40 μm, and the surface of the ultrafine glass fiber is treated by a silane coupling agent, so that the ultrafine glass fiber and the epoxy resin have good interface bonding force.
6. The hierarchical pore nano zeolite modified epoxy ceramic coating of claim 1, wherein the corrosion inhibitor is general benzotriazole.
7. The hierarchical pore nano zeolite modified epoxy ceramic coating as claimed in claim 1, wherein the components are prepared by the following method:
(1) preparation of component one: adding epoxy resin, superfine glass fiber, corrosion inhibitor-loaded multi-stage pore nano zeolite, a solvent and an auxiliary agent into a stainless steel tank, and dispersing at a high speed for 10-50 minutes by adopting a high-speed dispersion machine at 800-2000 rmp;
(2) preparation of component two: and adding a curing agent and a solvent into a stainless steel tank, and dispersing at a high speed of 400-2000 rmp for 10-30 minutes to obtain the nano-silver/.
8. The multi-stage pore nano zeolite modified epoxy ceramic coating as claimed in claim 7, wherein the superfine glass fiber is subjected to surface modification treatment, the superfine glass fiber, the silane coupling agent, the absolute ethyl alcohol and the water are mixed and proportioned according to the following mass ratio, a high-speed disperser is adopted to stir at 400-1200 rpm for 0.5-8 hours, and the mixture is filtered and dried:
80-100 parts of superfine glass fiber;
50-150 parts of absolute ethyl alcohol;
0.1-8 parts of a silane coupling agent;
0.5-10% of water.
9. The hierarchical porous nano zeolite modified epoxy ceramic coating as claimed in claim 7, wherein the corrosion inhibitor-loaded hierarchical porous nano zeolite is prepared by the following method:
(1) mixing and stirring aluminum isopropoxide, ethyl orthosilicate, tetrapropylammonium hydroxide and absolute ethyl alcohol at room temperature for 3-8 hours, then placing the mixture in a polytetrafluoroethylene hydrothermal reaction kettle, and crystallizing the mixture for 1-3 days at the temperature of 120-; washing, drying and roasting the product at 550 ℃;
(2) dispersing 1-10 g of hierarchical porous nano zeolite into 50ml of absolute ethyl alcohol, adding 10-30 g of benzotriazole, performing reduced pressure adsorption for 12-48 hours, washing, filtering and drying to obtain the corrosion inhibitor-loaded hierarchical porous nano zeolite.
10. The hierarchical porous nano zeolite modified epoxy ceramic coating as claimed in claim 7, wherein the curing temperature range of the mixture of the first component and the second component is 5-50%oC, curing for 6 hours to 7 days.
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| CN202011421947.1A CN112646451A (en) | 2020-12-08 | 2020-12-08 | Hierarchical-pore nano-zeolite modified epoxy ceramic coating |
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| CN202011421947.1A CN112646451A (en) | 2020-12-08 | 2020-12-08 | Hierarchical-pore nano-zeolite modified epoxy ceramic coating |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114085590A (en) * | 2021-11-15 | 2022-02-25 | 中北大学 | Method for forming organic-inorganic hybrid super-hydrophobic anticorrosive coating on surface of carbon steel |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114085590A (en) * | 2021-11-15 | 2022-02-25 | 中北大学 | Method for forming organic-inorganic hybrid super-hydrophobic anticorrosive coating on surface of carbon steel |
| CN114085590B (en) * | 2021-11-15 | 2022-06-07 | 中北大学 | Method for forming organic-inorganic hybrid super-hydrophobic anticorrosive coating on surface of carbon steel |
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Application publication date: 20210413 |