CN114605854A - Anticorrosive coating with super hydrophobic performance and ultralow surface energy - Google Patents
Anticorrosive coating with super hydrophobic performance and ultralow surface energy Download PDFInfo
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- CN114605854A CN114605854A CN202210235258.4A CN202210235258A CN114605854A CN 114605854 A CN114605854 A CN 114605854A CN 202210235258 A CN202210235258 A CN 202210235258A CN 114605854 A CN114605854 A CN 114605854A
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- coating
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- hydrophobic property
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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
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
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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
- C09D7/65—Additives macromolecular
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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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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
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- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses an anticorrosive coating with super hydrophobic property and ultralow surface energy, which is coated by the following raw materials in percentage by mass: 20-30% of inorganic passivation base material; 2% -3% of defoaming agent; 3 to 5 percent of ethyl acetate; 6 to 8 percent of plasticizer; 5 to 9 percent of thickening agent; 2 to 8 percent of curing agent; 9 to 13 percent of cellulose; 10% -12% of suspension; 10-12% of aqueous polyurethane dispersion liquid; the inorganic passivation substrate is one or a mixture of more of molybdate, tungstate and silicate; the suspension is an amphiphilic silica microsphere suspension. The invention has the technical effects of high hydrophobic property, low surface property, high mechanical property and better anticorrosion effect.
Description
Technical Field
The invention relates to the technical field of anticorrosive coatings, in particular to an anticorrosive coating with super hydrophobic property and ultralow surface energy.
Background
Corrosion resistant coating is a coating applied to the surface of the product being coated to isolate it from the surrounding medium to control corrosion of the pipe. The composite material has good electrical insulation and water-proof performance, strong adhesive force with the surface of the pipeline, chemical damage resistance and certain mechanical strength. The quality of the corrosion protection coating directly affects the service life of the coated product.
Therefore, the anticorrosive coating with super hydrophobicity and ultralow surface energy is very necessary, and has high hydrophobicity, low surface property, high mechanical property and good anticorrosive effect.
Disclosure of Invention
The invention aims to provide an anticorrosive coating with super hydrophobic property and ultra-low surface energy, so as to solve the problems in the background technology.
In order to realize the purpose, the invention provides the following technical scheme: an anticorrosive coating with super hydrophobic property and ultralow surface energy is coated by the following raw materials in percentage by mass:
preferably, the inorganic passivation substrate is one or more of molybdate, tungstate and silicate.
Preferably, the cellulose is one or a mixture of carbon fiber, glass fiber and asbestos fiber.
Preferably, the suspension is an amphiphilic silica microsphere suspension.
Preferably, the defoamer is a silicone oil defoamer.
Preferably, the plasticizer is di-n-octyl phthalate.
A preparation method of an anticorrosive coating with super hydrophobic property and ultralow surface energy specifically comprises the following steps:
the method comprises the following steps: preparing the coating: adding the suspension, the plasticizer, the defoaming agent and the aqueous polyurethane dispersion liquid into a stirring barrel according to the proportion, and stirring and mixing; then adding the inorganic passivation base material and the ethyl acetate while adding the cellulose and the curing agent, and uniformly stirring; adding a thickening agent to adjust the viscosity, and stirring and defoaming or vacuum defoaming to obtain the coating-resistant paint for later use;
step two: material processing: firstly, the material to be sprayed is subjected to air firing or solvent cleaning at 360 ℃ for 30-380 ℃ for 10 minutes to perform degreasing in the first step, and the surface is roughened in the second step, wherein corundum sand 80-100 # is used, the pressure is 0.4-0.6 mpa, and the thickness of the sand is 2.0-3.5 mu m;
step three: spraying of the coating: fully rolling the coating-resistant paint prepared in the first step for 120 revolutions per minute not less than 2 hours per time, rolling the paint not less than once per week, flatly placing the treated material, adjusting the pressure to be 20-30 m away from 0.2-0.3 mpa by using a spray gun with the diameter of 1.0-1.5 mm, directly spraying the paint, and drying the paint at the temperature of 120-150 ℃ for 5-8 minutes, wherein the thickness of the dried paint film is 10-15 mu m.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the anticorrosive coating with super hydrophobic property and super low surface energy, one or more of molybdate, tungstate and silicate are mixed to form an inorganic passivation substrate as a substrate of the whole coating, and the inorganic passivation mainly adopts the strong oxidizing property of the high-valence metal salts to form a compact oxide film on the surface of a metal coating, so that the surface energy of the anticorrosive coating is reduced, and the anticorrosive effect is improved.
2. According to the anticorrosive coating with super-hydrophobic property and ultralow surface energy, amphiphilic silicon dioxide microspheres are self-assembled in the aqueous polyurethane dispersion, so that the agglomeration of the microspheres can be reduced, and the formation of a composite material with a uniform surface microstructure is facilitated.
3. The anticorrosive coating with super hydrophobic property and super low surface energy adopts cellulose, wherein the cellulose is one or a mixture of carbon fiber, glass fiber and asbestos fiber, so that the whole coating has excellent workability and anti-sagging property, the surface strength of the material and the bonding strength with a base layer are improved, a good anti-cracking function is achieved, and the mechanical property of the coating is ensured.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the first embodiment, the first step is,
an anticorrosive coating with super hydrophobic property and ultralow surface energy is coated by the following raw materials in percentage by mass:
in this embodiment, the inorganic passivation substrate is one or a mixture of molybdate, tungstate and silicate.
In this embodiment, the cellulose is one or a mixture of carbon fibers, glass fibers, and asbestos fibers.
In this embodiment, the suspension is an amphiphilic silica microsphere suspension.
In this embodiment, the defoaming agent is a silicone oil defoaming agent.
In this embodiment, the plasticizer is di-n-octyl phthalate.
In the second embodiment, the first embodiment of the method,
an anticorrosive coating with super hydrophobic property and ultralow surface energy is coated by the following raw materials in percentage by mass:
in this embodiment, the inorganic passivation substrate is one or a mixture of molybdate, tungstate and silicate.
In this embodiment, the cellulose is one or a mixture of carbon fibers, glass fibers, and asbestos fibers.
In this embodiment, the suspension is an amphiphilic silica microsphere suspension.
In this embodiment, the defoaming agent is a silicone oil defoaming agent.
In this embodiment, the plasticizer is di-n-octyl phthalate.
In the third embodiment, the first step is that,
an anticorrosive coating with super hydrophobic property and ultralow surface energy is coated by the following raw materials in percentage by mass:
in this embodiment, the inorganic passivation substrate is one or a mixture of molybdate, tungstate and silicate.
In this embodiment, the cellulose is one or a mixture of carbon fibers, glass fibers, and asbestos fibers.
In this embodiment, the suspension is an amphiphilic silica microsphere suspension.
In this embodiment, the defoamer is a silicone oil defoamer.
In this example, the plasticizer is di-n-octyl phthalate.
The preparation method of the anticorrosive coating with super hydrophobic property and ultralow surface energy specifically comprises the following steps:
the method comprises the following steps: preparing the coating: adding the suspension, the plasticizer, the defoaming agent and the aqueous polyurethane dispersion liquid into a stirring barrel according to the proportion, and stirring and mixing; then adding the inorganic passivation base material and the ethyl acetate while adding the cellulose and the curing agent, and uniformly stirring; adding a thickening agent to adjust the viscosity, and stirring and defoaming or vacuum defoaming to obtain the coating-resistant paint for later use;
step two: material processing: firstly, the material to be sprayed is subjected to air firing or solvent cleaning at 360 ℃ for 30-380 ℃ for 10 minutes to perform degreasing in the first step, and the surface is roughened in the second step, wherein corundum sand 80-100 # is used, the pressure is 0.4-0.6 mpa, and the thickness of the sand is 2.0-3.5 mu m;
step three: spraying of the coating: fully rolling the coating-resistant paint prepared in the first step for 120 revolutions per minute not less than 2 hours per time, rolling the paint not less than once per week, flatly placing the treated material, adjusting the pressure to be 20-30 m away from 0.2-0.3 mpa by using a spray gun with the diameter of 1.0-1.5 mm, directly spraying the paint, and drying the paint at the temperature of 120-150 ℃ for 5-8 minutes, wherein the thickness of the dried paint film is 10-15 mu m.
Experimental analysis: the anticorrosive coatings prepared in the first, second and third examples and the anticorrosive coatings in the prior art are respectively tested for surface energy, acid and alkali resistance, corrosion resistance, water resistance and crack resistance, and the testing methods and results are shown in the following table:
compared with the prior art, the invention has the beneficial effects that: according to the anticorrosive coating with super hydrophobic property and super low surface energy, one or more of molybdate, tungstate and silicate are mixed to form an inorganic passivation substrate as a substrate of the whole coating, and the inorganic passivation mainly adopts the strong oxidizing property of the high-valence metal salts to form a compact oxide film on the surface of a metal coating, so that the surface energy of the anticorrosive coating is reduced, and the anticorrosive effect is improved. According to the anticorrosive coating with super-hydrophobic property and ultralow surface energy, amphiphilic silicon dioxide microspheres are self-assembled in the aqueous polyurethane dispersion, so that the agglomeration of the microspheres can be reduced, and the formation of a composite material with a uniform surface microstructure is facilitated. The anticorrosive coating with super hydrophobic property and super low surface energy adopts cellulose, wherein the cellulose is one or a mixture of carbon fiber, glass fiber and asbestos fiber, so that the whole coating has excellent workability and anti-sagging property, the surface strength of the material and the bonding strength with a base layer are improved, a good anti-cracking function is achieved, and the mechanical property of the coating is ensured.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (7)
1. An anticorrosive coating with super hydrophobic performance and ultralow surface energy is characterized in that: the coating is prepared by coating the following raw materials in percentage by mass:
2. the corrosion protective coating with super hydrophobic property and ultra low surface energy as claimed in claim 1, wherein: the inorganic passivation substrate is one or a mixture of molybdate, tungstate and silicate.
3. The corrosion protective coating with super hydrophobic property and ultra low surface energy as claimed in claim 1, wherein: the cellulose is one or a mixture of carbon fiber, glass fiber and asbestos fiber.
4. The corrosion protective coating with super hydrophobic property and ultra low surface energy as claimed in claim 1, wherein: the suspension is an amphiphilic silica microsphere suspension.
5. The corrosion protective coating with super hydrophobic property and ultra low surface energy as claimed in claim 1, wherein: the defoaming agent is a silicone oil defoaming agent.
6. The corrosion protective coating with super hydrophobic property and ultra low surface energy as claimed in claim 1, wherein: the plasticizer is di-n-octyl phthalate.
7. A preparation method of an anticorrosive coating with super hydrophobic property and ultralow surface energy is characterized in that: the method specifically comprises the following steps:
the method comprises the following steps: preparing the coating: adding the suspension, the plasticizer, the defoaming agent and the aqueous polyurethane dispersion liquid into a stirring barrel according to the proportion, and stirring and mixing; then adding the inorganic passivation base material and the ethyl acetate while adding the cellulose and the curing agent, and uniformly stirring; adding a thickening agent to adjust the viscosity, and stirring and defoaming or vacuum defoaming to obtain the coating-resistant paint for later use;
step two: and (3) material processing: firstly, the material to be sprayed is subjected to air firing or solvent cleaning at 360 ℃ for 30-380 ℃ for 10 minutes to perform degreasing in the first step, and the surface is roughened in the second step, wherein corundum sand 80-100 # is used, the pressure is 0.4-0.6 mpa, and the thickness of the sand is 2.0-3.5 mu m;
step three: spraying of the coating: fully rolling the coating-resistant paint prepared in the first step for 120 revolutions per minute not less than 2 hours per time, rolling the coating-resistant paint not less than once per week, flatly placing the treated material, adjusting the pressure to be 20-30 m away from 0.2-0.3 mpa by using a 1.0-1.5 mm phi spray gun, directly spraying, drying at the temperature of 120 plus materials and 150 ℃ for 5-8 minutes, and enabling the thickness of the dried coating film to be 10-15 mu m.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210235258.4A CN114605854A (en) | 2022-03-11 | 2022-03-11 | Anticorrosive coating with super hydrophobic performance and ultralow surface energy |
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| CN202210235258.4A CN114605854A (en) | 2022-03-11 | 2022-03-11 | Anticorrosive coating with super hydrophobic performance and ultralow surface energy |
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| CN101629288A (en) * | 2009-08-21 | 2010-01-20 | 攀枝花新钢钒股份有限公司 | Passivation treating agent for hot dip aluminum zinc plate and preparation method thereof |
| CN102864447A (en) * | 2012-09-19 | 2013-01-09 | 山东理工大学 | Compound passivating fluid for mechanical zinc coating |
| CN103497545A (en) * | 2013-10-10 | 2014-01-08 | 苏州弗克新型建材有限公司 | Inorganic coating, and preparation method and application thereof |
| CN105802465A (en) * | 2016-03-31 | 2016-07-27 | 武汉理工大学 | Super-hydrophobic coating material and preparation method thereof |
| CN106366859A (en) * | 2016-08-30 | 2017-02-01 | 北京碧海舟腐蚀防护工业股份有限公司 | General anticorrosive paint, general anticorrosive coating and offshore engineering structure containing general anticorrosive coating |
| CN109868029A (en) * | 2017-12-04 | 2019-06-11 | 海洋化工研究院有限公司 | Organic protection coating for reduction process aluminum alloy surface |
| CN110028816A (en) * | 2019-04-10 | 2019-07-19 | 北京中天正源生态科技有限公司 | A kind of aqueous environment protection anticorrosion composite material and preparation method |
| CN113278313A (en) * | 2021-04-29 | 2021-08-20 | 亚士创能科技(乌鲁木齐)有限公司 | Single-component water-based inorganic coating and preparation method and application thereof |
-
2022
- 2022-03-11 CN CN202210235258.4A patent/CN114605854A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101629288A (en) * | 2009-08-21 | 2010-01-20 | 攀枝花新钢钒股份有限公司 | Passivation treating agent for hot dip aluminum zinc plate and preparation method thereof |
| CN102864447A (en) * | 2012-09-19 | 2013-01-09 | 山东理工大学 | Compound passivating fluid for mechanical zinc coating |
| CN103497545A (en) * | 2013-10-10 | 2014-01-08 | 苏州弗克新型建材有限公司 | Inorganic coating, and preparation method and application thereof |
| CN105802465A (en) * | 2016-03-31 | 2016-07-27 | 武汉理工大学 | Super-hydrophobic coating material and preparation method thereof |
| CN106366859A (en) * | 2016-08-30 | 2017-02-01 | 北京碧海舟腐蚀防护工业股份有限公司 | General anticorrosive paint, general anticorrosive coating and offshore engineering structure containing general anticorrosive coating |
| CN109868029A (en) * | 2017-12-04 | 2019-06-11 | 海洋化工研究院有限公司 | Organic protection coating for reduction process aluminum alloy surface |
| CN110028816A (en) * | 2019-04-10 | 2019-07-19 | 北京中天正源生态科技有限公司 | A kind of aqueous environment protection anticorrosion composite material and preparation method |
| CN113278313A (en) * | 2021-04-29 | 2021-08-20 | 亚士创能科技(乌鲁木齐)有限公司 | Single-component water-based inorganic coating and preparation method and application thereof |
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Application publication date: 20220610 |