CN110804396B - Anticorrosive paint and preparation method and application thereof - Google Patents
Anticorrosive paint and preparation method and application thereof Download PDFInfo
- Publication number
- CN110804396B CN110804396B CN201911253434.1A CN201911253434A CN110804396B CN 110804396 B CN110804396 B CN 110804396B CN 201911253434 A CN201911253434 A CN 201911253434A CN 110804396 B CN110804396 B CN 110804396B
- Authority
- CN
- China
- Prior art keywords
- coating
- sample
- temperature
- corrosion
- hexamethyldisilazane
- 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.)
- Active
Links
Classifications
-
- 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
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
- C09D183/08—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen, and oxygen
-
- 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
-
- 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
- C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
- C08G77/22—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen
- C08G77/26—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen nitrogen-containing groups
-
- 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
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses an anticorrosive paint and a preparation method and application thereof. The anticorrosive paint disclosed by the invention comprises nano titanium trichloride, tetraethyl silicate, hexamethyldisilazane, oxysilane, ethanol or propanol and a dispersing agent. The coating prepared by the coating can effectively slow down the corrosion of equipment and has excellent corrosion resistance.
Description
Technical Field
The invention belongs to the field of coatings, and relates to an anticorrosive coating, and a preparation method and application thereof.
Background
Along with the rapid development of national economy, the energy demand of the market is gradually increased, and in order to meet the market demand, on one hand, the production capacity of devices is expanded by various domestic oil refineries, so that the devices run at full load; on the other hand, with the consumption of energy, crude oil processed by various large oil refineries mainly depends on import, but the import crude oil has the characteristics of high sulfur, high acid and high salt, which all cause the problem of equipment corrosion to be increasingly aggravated. The corrosion problem is relatively severe in the distillation apparatus, which is the most widely used equipment, compared to other apparatuses, and is most typical of corrosion in the common-roof condensation system. Although corrosion protection and control can be performed by a plurality of measures at present, most of protection relies on the control of the concentration of corrosive ions in a solution, for example, adding a corrosion inhibitor into the solution and reducing the salt concentration in crude oil by an electric desalting process, but when corrosion inhibitor adding equipment is blocked or the electric desalting process is unstable, the corrosion of common top equipment is aggravated. Therefore, a new protective coating capable of effectively protecting the common-roof corrosion is urgently needed, and the corrosion problem of equipment when the process operation is unstable is solved.
Disclosure of Invention
The invention aims to solve the technical problem that the existing coating has poor corrosion resistance.
In order to solve the technical problems, the invention provides an anticorrosive coating, which comprises the following components in percentage by mass based on 100 wt% of the coating:
in some embodiments, in the above coating, the tetraethyl silicate is tetraethyl orthosilicate.
In some embodiments, the coating of any of the above, wherein the oxysilane is trimethylethoxysilane and/or n-octyltriethoxysilane.
In some embodiments, the coating of any one of the above, wherein the dispersant is methyl methacrylate.
In order to solve the technical problem, the invention also provides a preparation method of any one of the coatings, which comprises the step of uniformly mixing nano titanium trichloride, tetraethyl silicate, hexamethyldisilazane, oxysilane and a dispersing agent in ethanol or propanol.
In order to solve the above technical problems, the present invention further provides a method for preparing a coating, comprising the steps of applying any one of the above coatings on the surface of a sample, statically placing the sample, and then reacting the sample at 250 ℃ and 300 ℃ to form a coating on the surface of the sample.
At high temperature, tetraethyl silicate, hexamethyldisilazane and oxysilane in the coating are subjected to synthesis reaction to generate silicon dioxide, titanium trichloride, hexamethyldisilazane and oxysilane are subjected to in-situ reaction to generate titanium dioxide on the surface of a sample coated with the coating, the silicon dioxide generated by the reaction and the titanium dioxide are uniformly distributed in an organic matrix, a double super-hydrophobic structure is formed on the surface of the sample, and the generated silicon dioxide and the generated titanium dioxide also have excellent corrosion resistance.
In some embodiments, the above method for preparing a coating, wherein said coating is performed by a reciprocating brush process, said brush process being performed 5 to 10 times; and/or
The static state placing time is 0.5-3 h; and/or
The reaction time at the temperature of 300 ℃ is 0.5-3 h.
In some embodiments, in the above method of preparing a coating, the sample is a carbon steel sample.
In order to solve the technical problems, the invention also provides the application of any one of the coatings in corrosion prevention.
In some embodiments, in the above application, the corrosion is dew point corrosion.
Dew point corrosion is the corrosion of materials caused by the fact that saturated steam is condensed to form liquid, and the liquid absorbs acid washing gas or corrosive substances in the environment. The dew point corrosion problem is serious at the top of the tower (such as the top of the atmospheric and vacuum equipment, which is usually made of carbon steel). The coating of the invention is particularly suitable for dew point corrosion protection. The coating disclosed by the invention is coated on a tower top (such as the tower top of an atmospheric and vacuum device) or other positions which are easy to generate dew points, so that a double super-hydrophobic and self-cleaning protective coating (by utilizing a super-hydrophobic structure of the coating, the surface of the coating can be cleaned while liquid drops slide off from the surface of the coating) can be formed, and the occurrence and development of dew point corrosion can be effectively prevented while condensate is discharged.
The invention has the following advantages:
(1) the coating prepared by the coating is an anti-corrosion coating, in particular to a super-hydrophobic anti-dew point corrosion protective coating, and because the coating contains inorganic nano-particles, the coating has good ageing resistance and long service life while the uniformity of the coating is ensured.
(2) When the coating is prepared by using the coating, the coating can be normally constructed without carrying out complex treatment on a construction interface, is nontoxic and noncorrosive, and has better social benefit and economic value.
(3) The coating prepared by the coating has good corrosion resistance and excellent dew point corrosion prevention capability, can be applied to corrosion protection of conventional equipment, can be used as a protective coating on the top of equipment such as a normal-pressure reduction tower and the like due to the super-hydrophobic functional characteristic, can effectively slow down the corrosion of the equipment, and has excellent corrosion resistance.
Detailed Description
The experimental procedures used in the following examples are conventional unless otherwise specified.
Materials, reagents and the like used in the following examples are commercially available unless otherwise specified.
The present invention will be further described with reference to the following examples. It should be understood that the following examples are illustrative only and are not intended to limit the scope of the present invention.
The nanometer titanium trichloride is a product of national medicine group chemical reagent company Limited, and the product catalog number is 80130418.
Tetraethyl orthosilicate is a product of chemical reagents of the national drug group, ltd, and the catalog number is 80124118.
Hexamethyldisilazane is a product of national pharmaceutical group chemical reagents, ltd, catalog No. 40027760.
Oxysilane: the trimethylethoxysilane is a product of national medicine group chemical reagent limited company, and the product catalog number is XW 18256231; the n-octyl triethoxysilane is a product of chemical reagents of national medicine group, and the product catalog number is TO 017102.
Dispersing agent: methyl methacrylate is a product of chemical reagents of national drug group, ltd, and the catalog number is 80084328.
Kaolin is a pure analytical reagent of chemical reagents of the national drug group.
Perfluorooctanoic acid is an analytical pure reagent of Bailingwei Technology Limited, Beijing.
The design temperature of the high-temperature high-pressure reaction kettle in the following example is 400 ℃ and the design pressure is 10 MPa.
Example 1
And (2) fully and uniformly mixing nano titanium trichloride, tetraethyl orthosilicate, hexamethyldisilazane, trimethylethoxysilane and methyl methacrylate in absolute ethyl alcohol to prepare the coating. The coating comprises 1.6 wt% of nano titanium trichloride, 11.8 wt% of tetraethyl orthosilicate, 5.6 wt% of hexamethyldisilazane, 9.3 wt% of trimethylethoxysilane, 61.8 wt% of absolute ethyl alcohol and 9.9 wt% of methyl methacrylate, wherein the mass of the coating is 100 wt%.
The coating is fully stirred and then uniformly coated on the surface of a carbon steel sample subjected to ash removal and sand blasting, a reciprocating brushing process is adopted during coating, the surface is brushed for 10 times, the sample is statically placed for 1h after being brushed, then the sample is transferred to a high-temperature high-pressure kettle, the high-temperature high-pressure kettle is placed in a high-temperature and closed environment at 280 ℃, and a first coating can be obtained after reaction for 2 h. The thickness of the first coating can reach more than 0.3mm at one time without cracking and peeling phenomena, can be firmly attached to the steel substrate after ash removal and sand blasting, can keep high elasticity and rigidity at the temperature of minus 40 ℃ to 250 ℃, and has no cracking and peeling phenomena after long-term use.
Example 2
And (2) fully and uniformly mixing nano titanium trichloride, tetraethyl orthosilicate, hexamethyldisilazane, n-octyltriethoxysilane and methyl methacrylate in absolute ethyl alcohol to prepare the coating. The coating comprises 12.5 wt% of nano titanium trichloride, 11.8 wt% of tetraethyl orthosilicate, 5.6 wt% of hexamethyldisilazane, 9.3 wt% of n-octyltriethoxysilane, 57.6 wt% of absolute ethyl alcohol and 3.2 wt% of methyl methacrylate, wherein the mass of the coating is 100 wt%.
And (2) fully stirring the coating, uniformly coating the surface of the carbon steel sample subjected to ash removal and sand blasting, brushing for 10 times by adopting a reciprocating brushing process during coating, statically placing the sample for 1h after brushing, transferring the sample into a high-temperature high-pressure kettle, placing the sample into a high-temperature high-pressure kettle at 280 ℃ in a closed environment, and reacting for 2h to obtain a second coating. The thickness of the second coating can reach more than 0.5mm at one time without cracking and peeling phenomena, can be firmly attached to the steel substrate after ash removal and sand blasting, can keep high elasticity and rigidity at the temperature of minus 40 ℃ to 250 ℃, and has no cracking and peeling phenomena after long-term use.
Example 3
And (2) fully and uniformly mixing nano titanium trichloride, tetraethyl orthosilicate, hexamethyldisilazane, trimethylethoxysilane and methyl methacrylate in absolute ethyl alcohol to prepare the coating. The coating comprises 8.5 wt% of nano titanium trichloride, 7.5 wt% of tetraethyl orthosilicate, 4.5 wt% of hexamethyldisilazane, 8.5 wt% of trimethylethoxysilane, 62 wt% of absolute ethyl alcohol and 9 wt% of methyl methacrylate, wherein the mass of the coating is 100 wt%.
And (3) fully stirring the coating, uniformly coating the surface of the carbon steel sample subjected to ash removal and sand blasting, brushing for 10 times by adopting a reciprocating brushing process during coating, statically placing the sample for 1h after brushing, transferring the sample into a high-temperature high-pressure kettle, placing the sample into a high-temperature high-pressure kettle at 280 ℃ in a closed environment, and reacting for 2h to obtain a third coating. The thickness of the third coating can reach more than 1mm at one time without cracking and peeling phenomena, the third coating can be firmly attached to the steel substrate after ash and sand removal and blasting, high elasticity and rigidity can be kept at minus 40-250 ℃, and the third coating does not crack and peel phenomena after long-term use.
Example 4
And (2) fully and uniformly mixing nano titanium trichloride, tetraethyl orthosilicate, hexamethyldisilazane, trimethylethoxysilane and methyl methacrylate in absolute ethyl alcohol to prepare the coating. The coating comprises 12.5 wt% of nano titanium trichloride, 0.8 wt% of tetraethyl orthosilicate, 5.6 wt% of hexamethyldisilazane, 9.3 wt% of trimethylethoxysilane, 61.9 wt% of absolute ethyl alcohol and 9.9 wt% of methyl methacrylate, wherein the mass of the coating is 100 wt%.
The paint is fully stirred and then evenly coated on the surface of a carbon steel sample subjected to dust removal and sand blasting, a reciprocating brushing process is adopted during coating, the sample is brushed for 10 times, the sample is statically placed for 1h after being brushed, then the sample is transferred to a high-temperature high-pressure kettle and placed in a high-temperature and closed environment at the temperature of 280 ℃, and a fourth coating can be obtained after reaction for 2 h. The thickness of the coating four can reach more than 0.5mm at one time without cracking and peeling phenomena, can be firmly attached to the steel substrate after ash removal and sand blasting, can keep high elasticity and rigidity at the temperature of minus 40 to 250 ℃, and has no cracking and peeling phenomena after long-term use.
Example 5
And (2) fully and uniformly mixing nano titanium trichloride, tetraethyl orthosilicate, hexamethyldisilazane, n-octyltriethoxysilane and methyl methacrylate in absolute ethyl alcohol to prepare the coating. The coating comprises 12.5 wt% of nano titanium trichloride, 9.5 wt% of tetraethyl orthosilicate, 2.4 wt% of hexamethyldisilazane, 7.5 wt% of n-octyltriethoxysilane, 58.2 wt% of absolute ethyl alcohol and 9.9 wt% of methyl methacrylate, wherein the mass of the coating is 100 wt%.
The paint is fully stirred and then evenly coated on the surface of a carbon steel sample subjected to dust removal and sand blasting, a reciprocating brush coating process is adopted during coating, the sample is statically placed for 1h after being brush coated, then the sample is transferred to a high-temperature high-pressure kettle and placed in a high-temperature and closed environment at 280 ℃, and a fifth coating can be obtained after reaction for 2 h. The thickness of the fifth coating can reach more than 0.3mm at one time without cracking and peeling phenomena, can be firmly attached to the steel substrate after ash removal and sand blasting, keeps high elasticity and rigidity at minus 40 to 250 ℃, and has no cracking and peeling phenomena after long-term use.
Example 6
And (2) fully and uniformly mixing nano titanium trichloride, tetraethyl orthosilicate, hexamethyldisilazane, n-octyltriethoxysilane and methyl methacrylate in absolute ethyl alcohol to prepare the coating. The coating comprises 12.5 wt% of nano titanium trichloride, 11.8 wt% of tetraethyl orthosilicate, 5.6 wt% of hexamethyldisilazane, 4.0 wt% of n-octyltriethoxysilane, 59.6 wt% of absolute ethyl alcohol and 6.5 wt% of methyl methacrylate, wherein the mass of the coating is 100 wt%.
The coating is fully stirred and then uniformly coated on the surface of a carbon steel sample subjected to ash removal and sand blasting, a reciprocating brushing process is adopted during coating, the sample is brushed for 10 times, the sample is statically placed for 1h after being brushed, then the sample is transferred to a high-temperature high-pressure kettle, the sample is placed in a high-temperature and closed environment at the temperature of 280 ℃, and a coating six can be obtained after reaction for 2 h. The thickness of the coating six can reach more than 0.3mm at one time without cracking and peeling phenomena, can be firmly attached to the steel substrate after ash removal and sand blasting, keeps high elasticity and rigidity at minus 40 to 250 ℃, and has no cracking and peeling phenomena after long-term use.
Example 7
The procedure of example 2 was repeated except that the number of brushing was adjusted to 5, the static standing time of the sample was adjusted to 0.5h, the temperature of the high-temperature autoclave was adjusted to 300 ℃ and the reaction time was 3h, to obtain coating seven. The thickness of the coating seven can reach more than 0.3mm at one time without cracking and peeling phenomena, can be firmly attached to the steel substrate after ash removal and sand blasting, can keep high elasticity and rigidity at the temperature of minus 40 ℃ to 250 ℃, and has no cracking and peeling phenomena after long-term use.
Example 8
The procedure of example 2 was repeated except that the number of brushing was adjusted to 8, the static standing time of the sample was adjusted to 3 hours, the temperature of the high-temperature autoclave was adjusted to 250 ℃, and the reaction time was 0.5 hour, to obtain coating eight. The thickness of the coating eight can reach more than 0.3mm at one time without cracking and peeling phenomena, can be firmly attached to the steel substrate after ash removal and sand blasting, can keep high elasticity and rigidity at the temperature of minus 40 ℃ to 250 ℃, and has no cracking and peeling phenomena after long-term use.
Example 9
The procedure of example 2 was repeated except that absolute ethanol was replaced with propanol to obtain coating nine. The thickness of the coating nine can reach more than 0.5mm at one time without cracking and peeling phenomena, can be firmly attached to the steel substrate after ash removal and sand blasting, can keep high elasticity and rigidity at the temperature of minus 40 ℃ to 250 ℃, and has no cracking and peeling phenomena after long-term use.
Test example: evaluation of coating resistance
To examine the properties of the coatings produced, the coatings produced in examples 1 to 9 were examined at room temperature as follows:
evaluation of seawater tolerance: the coating sample is placed on a sample rack of a salt spray box, 3.5% sodium chloride aqueous solution is prepared and added into a container of the salt spray box, salt spray is sprayed in a box body environment in a blowing mode of an air compressor, the test temperature is 25 ℃, and the test period is 30 days.
Evaluation of acid resistance: spraying hydrochloric acid or sulfuric acid with a mass fraction of 10% on the surface of the sample by using an atomizer, wherein the spraying is carried out for 4 times every day at intervals of 6h, the evaluation temperature is 25 ℃, and the period is 30 days.
Alkali resistance evaluation: except that the reagent was replaced with a 1.5% by mass aqueous NaOH solution, the evaluation method was consistent with the acid resistance evaluation.
The evaluation criteria are as follows:
the method has the advantages that: the color of the surface of the coating changes, and the surface does not crack;
good: the surface of the coating has color change or cracking, and the stripping area is less than 1 percent;
in general: the surface of the coating has color change and cracking, and the stripping area is more than 1% and less than 5%;
poor: the surface of the coating has color change and cracking, and the stripping area is more than 5 percent.
The perfluorooctanoic acid and kaolin were mixed uniformly at a mass ratio of 1:10 to prepare a comparative coating material, the same coating sample preparation as in example 1 was carried out, and the obtained coating sample was used as a comparative coating to carry out the above evaluation.
The properties of the coating are shown in table 1.
TABLE 1 evaluation results of the resistance of the coating in different media
| Hydrochloric acid (10%) | Sulfuric acid (10%) | Seawater (3.5%) | Alkali resistance (1.5%) | |
| Coating one | √ | √ | √ | √ |
| Coating two | √√√ | √√ | √ | √√ |
| Coating three | √√√ | √√ | √√√ | √√ |
| Coating four | √√ | √ | √ | √ |
| Coating five | √ | √ | √√ | √ |
| Coating six | √ | √√ | √ | √ |
| Coating seven | √√ | √√ | √ | √√ |
| Coating eight | √√ | √√ | √√ | √ |
| Coating nine | √√√ | √√ | √ | √√ |
| Comparative coating | × | × | √ | √ |
Remarking: the advantages are that: v √; good: v, V; in general: a preparation method of a V-shaped food; poor: is prepared from
In the preparation of the super-hydrophobic coating, a document reports that by adopting the comparative coating, a super-hydrophobic material with better performance can be prepared by adopting a dripping method, and the super-hydrophobic coating has better self-cleaning capability. However, the evaluation of the present invention shows that the comparative coating has poor bonding force with the substrate (the peeling phenomenon of the coating is obvious, and the peeling area is more than 20%), and has poor tolerance in an acid environment (see table 1). Table 1 shows that the coating prepared by the invention has excellent performance of chemical reagents such as acid and alkali resistance and the like, and has good corrosion resistance to seawater.
Claims (8)
1. An anticorrosion coating comprises the following components in percentage by mass based on 100 wt% of the coating mass:
wherein the oxysilane is trimethylethoxysilane and/or n-octyltriethoxysilane;
the preparation method of the anticorrosive paint comprises the following steps: mixing nanometer titanium trichloride, tetraethyl silicate, hexamethyldisilazane, oxysilane and methyl methacrylate in ethanol or propanol.
2. A method for preparing a coating, comprising the steps of applying the coating material as described in claim 1 on the surface of a sample, statically placing the sample, and then reacting the sample at the temperature of 250 ℃ and 300 ℃ to form the coating on the surface of the sample.
3. The method of claim 2, wherein: the coating adopts a reciprocating brush coating process, and the brush coating is carried out for 5-10 times.
4. The method of claim 3, wherein: the static state is placed for 0.5-3 h.
5. The method of claim 3, wherein: the reaction time at the temperature of 300 ℃ is 0.5-3 h.
6. The method of claim 2, wherein: the sample is a carbon steel sample.
7. Use of a coating according to claim 1 for corrosion protection.
8. Use according to claim 7, characterized in that: the corrosion is dew point corrosion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911253434.1A CN110804396B (en) | 2019-12-09 | 2019-12-09 | Anticorrosive paint and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911253434.1A CN110804396B (en) | 2019-12-09 | 2019-12-09 | Anticorrosive paint and preparation method and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110804396A CN110804396A (en) | 2020-02-18 |
| CN110804396B true CN110804396B (en) | 2022-08-05 |
Family
ID=69492868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911253434.1A Active CN110804396B (en) | 2019-12-09 | 2019-12-09 | Anticorrosive paint and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110804396B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113088159A (en) * | 2021-03-30 | 2021-07-09 | 湖北铁神新材料有限公司 | Dew point corrosion prevention coating and preparation method thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1211438C (en) * | 2001-09-02 | 2005-07-20 | 福州大学 | Prepn of nano level anticorrosive oxide coating |
| CN101481553A (en) * | 2008-11-06 | 2009-07-15 | 常州市纳罗可涂料有限公司 | Normal temperature cured self-assembly composite nano oxide anti-corrosive paint |
| CN103224719B (en) * | 2013-02-04 | 2015-05-13 | 湖北大学 | Fluorosilicone material for super-hydrophobic coating and its preparation method and use method |
| KR101708794B1 (en) * | 2015-08-28 | 2017-03-09 | 주식회사 제이엘서피스 | Stability of friction factor, anti-corrosion and eco-friendly coating solution, production method of coating layer by using this coating solution |
| CN107141992B (en) * | 2017-05-23 | 2019-07-02 | 天津天盈新型建材有限公司 | A kind of super-hydrophobic transparent coating liquid and preparation method thereof |
| CN107739534A (en) * | 2017-10-30 | 2018-02-27 | 杭州思垓防腐材料有限公司 | A kind of alcohol radical inorganic composite coating and preparation method thereof |
-
2019
- 2019-12-09 CN CN201911253434.1A patent/CN110804396B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN110804396A (en) | 2020-02-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106011816B (en) | A kind of graphene-based film agent | |
| CN103952732B (en) | Metal super-hydrophobic surface and preparation method thereof | |
| CN103666201A (en) | Long-acting acid-base resistant solvent-free anticorrosive paint as well as preparation method and application thereof | |
| CN105602415B (en) | Steel structure surface protection VCI powder zinc-rich paint and preparation method thereof | |
| US20160200917A1 (en) | Anti-corrosion coating | |
| CN103409017B (en) | A kind of water-based anti-rust paint for rusty surfaces | |
| CN110804396B (en) | Anticorrosive paint and preparation method and application thereof | |
| CN108816709A (en) | A kind of anticorrosion of steel structure coating and preparation method thereof | |
| CN102816486B (en) | Rust-removing-free environment-friendly acrylic acid zinc phosphate organic composite ceramic anticorrosive paint and preparation method thereof | |
| CN112251136A (en) | Protective coating precursor, protective coating precursor solution and preparation method thereof | |
| KR20110119067A (en) | Coating composition with ceramic and coating method for preventing corrosion of pipe | |
| CN104559580A (en) | High-solid copper acrylate polymer type long-lasting antifouling paint | |
| CN202952600U (en) | High temperature and strong acid resistant anticorrosion coating | |
| CN102585616A (en) | Polystyrene modified high-temperature resistant anticorrosive coating | |
| CN112122086A (en) | Construction method of water-based heavy-duty fluorocarbon coating | |
| CN106521608A (en) | Galvanized and electrophoretic paint coated gas steel pipe and preparation method of galvanized and electrophoretic paint coated gas steel pipe | |
| CN206529533U (en) | A kind of combustion gas is with zinc-plated electrophoretic paint steel pipe | |
| CN112724833B (en) | Water-based waterproof combined paint for renovating color steel plates of industrial factory buildings and preparation method and application thereof | |
| CN114106642B (en) | Super-hydrophobic coating, super-hydrophobic metal sheet and preparation method thereof | |
| CN102732124A (en) | Fluorine-containing heavy-duty anticorrosive coating and its application | |
| CN102127760A (en) | Nano mirror spray coating method | |
| CN110564192A (en) | high-low voltage switch cabinet anticorrosion technology | |
| CN104912936A (en) | Anticorrosion processing method for rudder pintle bearing | |
| CN105331221A (en) | Formula of heat-resisting anticorrosive coating for iron-aluminum tube | |
| LU502090B1 (en) | A Heat Exchanger |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |