CN110511627B - Self-cleaning FEVE fluorocarbon coating and preparation method thereof - Google Patents
Self-cleaning FEVE fluorocarbon coating and preparation method thereof Download PDFInfo
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- CN110511627B CN110511627B CN201910954284.0A CN201910954284A CN110511627B CN 110511627 B CN110511627 B CN 110511627B CN 201910954284 A CN201910954284 A CN 201910954284A CN 110511627 B CN110511627 B CN 110511627B
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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
- C09D127/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers
- C09D127/02—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D127/12—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
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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
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1656—Antifouling paints; Underwater paints characterised by the film-forming substance
- C09D5/1662—Synthetic film-forming substance
- C09D5/1668—Vinyl-type polymers
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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
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1687—Use of special additives
Abstract
The invention belongs to the technical field of coatings, and particularly relates to a self-cleaning FEVE fluorocarbon coating and a preparation method thereof. The self-cleaning FEVE fluorocarbon coating is prepared from the following components in parts by mass: 1, component A and component B; the component A comprises the following components in percentage by mass: 36-50% of FEVE type fluorocarbon resin, 0.5-2% of wetting dispersant, 1-2% of zinc powder, 7-12% of amorphous silicon dioxide, 6-10% of graphite phase carbon nitride, 0.3-0.8% of defoaming agent, 0.8-1.5% of flatting agent, 18-25% of nano silica sol, 4-8% of hydroxyethyl cellulose and the balance of deionized water; the component B is a polydiisocyanate curing agent. In a word, the self-cleaning FEVE fluorocarbon coating provided by the invention has good dustproof and anti-adhesion effects, excellent self-cleaning performance, strong weather resistance and sterilization property; the self-cleaning FEVE fluorocarbon coating has good market application prospect.
Description
Technical Field
The invention belongs to the technical field of coatings, and particularly relates to a self-cleaning FEVE fluorocarbon coating and a preparation method thereof.
Background
The coating generally comprises four basic components: film-forming substances (resins, emulsions), pigments (including extender pigments), solvents and additives (auxiliaries).
Wherein the film-forming substance is the main component of the coating film, and comprises oil, oil processing product, cellulose derivative, natural resin, synthetic resin and synthetic emulsion. The film-forming material also includes a partially non-volatile reactive diluent, which is the principal material that provides a firm attachment of the coating to the surface to be coated to form a continuous film, and which forms the basis for the coating and determines the basic properties of the coating. Wherein, the auxiliary agent is for example defoaming agent, leveling agent, etc., and some special functional auxiliary agents, such as substrate wetting agent, etc.; these additives generally do not form a film and are added in small amounts, but play a significant role in the process of forming a coating film on a substrate and in durability. The pigment is generally divided into two types, one is a coloring pigment, such as common titanium dioxide and chrome yellow, and the other is an extender pigment, namely common fillers, such as calcium carbonate and talcum powder. The solvent generally includes an organic solvent and water. Coatings can be classified into oil-based coatings, fiber coatings, synthetic coatings and inorganic coatings according to the main film-forming substances used in the coatings; according to the properties of the paint or paint film, the paint can be divided into solution, latex, sol, powder, bright, dull and colorful artistic paint and the like.
The existing dustproof coating mainly takes fluorocarbon polymer and organic silicon polymer as main materials, and realizes the stain-resistant effect through the low surface tension of the surfaces of the fluorocarbon polymer and the organic silicon compound, but the existing dustproof coating has unsatisfactory dustproof effect on the surfaces of appliances which are in long-term contact with dust, such as air conditioners, air purifiers, dust collectors, range hoods, electronic equipment fans and the like, and the phenomenon of dust accumulation is frequently generated on the surfaces and inside of the existing dustproof coating.
In the prior art, for example, chinese patent application CN106893414A discloses an environment-friendly type FEVE fluorocarbon coating, which comprises the following components in parts by weight: the adhesive comprises, by weight, 2030 parts of FEVE emulsion, 2030 parts of epoxy silane modified silica sol, 1.02.0 parts of film forming assistant, 0.11.0 part of thickening and leveling agent, 0.21.0 parts of polyurethane thickening agent and 3060 parts of color paste, wherein the color paste comprises the following components in percentage by weight: 33% of water, 0.3% of multifunctional auxiliary agent, 0.3% of cellulose thickener, 0.4% of wetting agent, 0.9% of dispersing agent, 0.1% of defoaming agent, 47% of titanium dioxide, 9% of mica powder and 9% of wollastonite powder. However, the environment-friendly FEVE fluorocarbon coating does not have obvious self-cleaning performance and sterilization effect.
Therefore, there is a need to develop a water-based fluorocarbon coating with excellent self-cleaning performance and bactericidal property.
Disclosure of Invention
The technical scheme disclosed by the invention aims to provide the environment-friendly self-cleaning fluorocarbon coating, and the fluorocarbon coating has the effects of dust prevention, pollution resistance, automatic cleaning, strong weather resistance and the like, and also has the sterilization characteristic, so that the market demand can be well met.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a self-cleaning FEVE fluorocarbon coating, which is prepared from the following components in parts by mass: 1, component A and component B;
wherein the component A comprises the following components in percentage by mass:
wherein the component B is a polyisocyanate curing agent.
Preferably, in the self-cleaning FEVE fluorocarbon coating, the component A comprises the following components in percentage by mass:
it is worth adding to the description that the said fluorocarbon resin of FEVE type has the name FEVE fluoro resin (also called fluoroolefin-vinyl ether copolymer), which is a thermosetting coating resin copolymerized from fluoroolefin and alkyl vinyl ether or alkyl vinyl ester, the fluoroolefin unit provides weather resistance and corrosion resistance, and the vinyl unit provides solubility, transparency, gloss, hardness and flexibility.
Among them, zinc powder is used as a self-cleaning substance. The graphite phase carbon nitride modified amorphous silicon dioxide has high adsorbability, high photocatalytic oxidation activity and good photocatalytic activity, and can well exert antibacterial property.
Preferably, in the self-cleaning type FEVE fluorocarbon coating described above, the wetting and dispersing agent is selected from any one of the following: dibutylnaphthalene sulfonate, diisopropylnaphthalene sulfonate, isopropylnaphthalene sulfonate.
Preferably, in the self-cleaning FEVE fluorocarbon coating, the average particle size of the zinc powder is 2-3 μm.
Preferably, in the self-cleaning FEVE fluorocarbon coating, the average particle size of the amorphous silica is 0.5-1 μm.
Preferably, in the self-cleaning type FEVE fluorocarbon coating described above, the defoamer is selected from any one of: higher fatty acid amide defoaming agents, modified silicone resin defoaming agents, polypropylene glycol defoaming agents, and organic phosphoric acid triester defoaming agents.
Preferably, in the self-cleaning FEVE fluorocarbon coating, the leveling agent is selected from any one of the following: acrylic flatting agent, organic silicon flatting agent, ethylene glycol monobutyl ether and polydimethylsiloxane.
In addition, as a coating, the self-cleaning FEVE fluorocarbon coating of the present invention can also be added with pigments with required colors, such as cinnabar, indigo, iron oxide yellow and cochineal.
Meanwhile, the invention provides a preparation method of the self-cleaning FEVE fluorocarbon coating, which comprises the following steps:
s1: adding FEVE type fluorocarbon resin, wetting dispersant, zinc powder, amorphous silicon dioxide, graphite phase carbon nitride, defoaming agent, leveling agent, nano silica sol, hydroxyethyl cellulose and deionized water into a reaction container, and stirring for 30-45 minutes at a stirring linear speed of 10-30 m/s to obtain a component A;
s2: and adding the component B into the reaction container, and stirring for 3-5 hours at a stirring linear speed of 10-30 m/s to prepare the self-cleaning FEVE fluorocarbon coating.
Preferably, in the above production method, the step of producing the graphite-phase carbon nitride includes:
placing melamine in a muffle furnace, heating to 630-650 ℃ at the heating rate of 5 ℃/min, and roasting at the temperature for 3 hours to obtain a graphite-phase carbon nitride coarse material; and naturally cooling to room temperature to obtain a light yellow solid, and grinding the light yellow solid into powder to obtain the graphite-phase carbon nitride.
Therefore, the preparation method has simple steps, is easy to operate and is suitable for large-scale industrial production. Moreover, compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:
the technical scheme provided by the invention simultaneously uses the graphite phase carbon nitride and the amorphous silicon dioxide, so that the amorphous silicon dioxide modified by the graphite phase carbon nitride has high adsorbability and high photocatalytic oxidation activity, and the antibacterial property of the amorphous silicon dioxide can be well exerted; meanwhile, the graphite phase carbon nitride belongs to a polymer semiconductor and has good dispersibility in the coating, so that the dispersibility of the amorphous silicon dioxide modified by the graphite phase carbon nitride can be greatly improved.
Therefore, the self-cleaning FEVE fluorocarbon coating provided by the invention has good dustproof and anti-adhesion effects, excellent self-cleaning performance, strong weather resistance and bactericidal property.
In conclusion, the self-cleaning FEVE fluorocarbon coating has good market application prospect.
Detailed Description
According to the first aspect of the invention, the self-cleaning FEVE fluorocarbon coating is prepared from the following components in parts by mass: 1, component A and component B; wherein the component A comprises the following components in percentage by mass:
wherein the component B is a polyisocyanate curing agent.
In a preferred embodiment, the component A comprises the following components in percentage by mass:
in another preferred embodiment, the component A comprises the following components in percentage by mass:
in a preferred embodiment, the wetting and dispersing agent is selected from any one of the following: dibutylnaphthalene sulfonate, diisopropylnaphthalene sulfonate, isopropylnaphthalene sulfonate.
In a preferred embodiment, the zinc powder has an average particle size of 2 to 3 μm.
In a preferred embodiment, the amorphous silica has an average particle size of 0.5 to 1 μm.
In a preferred embodiment, the defoamer is selected from any one of the following: higher fatty acid amide defoaming agents, modified silicone resin defoaming agents, polypropylene glycol defoaming agents, and organic phosphoric acid triester defoaming agents.
In a preferred embodiment, the leveling agent is selected from any one of the following: acrylic flatting agent, organic silicon flatting agent, ethylene glycol monobutyl ether and polydimethylsiloxane.
The preparation method of the self-cleaning FEVE fluorocarbon coating according to the second aspect of the invention comprises the following steps:
s1: adding FEVE type fluorocarbon resin, wetting dispersant, zinc powder, amorphous silicon dioxide, graphite phase carbon nitride, defoaming agent, leveling agent, nano silica sol, hydroxyethyl cellulose and deionized water into a reaction container, and stirring for 30-45 minutes at a stirring linear speed of 10-30 m/s to obtain a component A;
s2: and adding the component B into the reaction container, and stirring for 3-5 hours at a stirring linear speed of 10-30 m/s to prepare the self-cleaning FEVE fluorocarbon coating.
In a preferred embodiment, the step of preparing the graphite phase carbon nitride comprises:
placing melamine in a muffle furnace, heating to 630-650 ℃ at the heating rate of 5 ℃/min, and roasting at the temperature for 3 hours to obtain a graphite-phase carbon nitride coarse material; and naturally cooling to room temperature to obtain a light yellow solid, and grinding the light yellow solid into powder to obtain the graphite-phase carbon nitride.
The present invention will be described in detail and specifically with reference to the following examples so that the present invention may be better understood, but the following examples do not limit the scope of the present invention.
Example 1
The self-cleaning FEVE fluorocarbon coating is prepared according to the following steps:
first, preparation of graphite-phase carbon nitride: placing melamine in a muffle furnace, heating to 630-650 ℃ at the heating rate of 5 ℃/min, and roasting at the temperature for 3 hours to obtain a graphite-phase carbon nitride coarse material; and naturally cooling to room temperature to obtain a light yellow solid, and grinding the light yellow solid into powder to obtain the graphite-phase carbon nitride.
Then, adding FEVE type fluorocarbon resin, wetting dispersant, zinc powder, amorphous silicon dioxide, graphite phase carbon nitride, defoaming agent, leveling agent, nano silica sol, hydroxyethyl cellulose and deionized water into a reaction container, and stirring for 45 minutes at a stirring linear speed of 15m/s to obtain a component A;
finally, adding the component B (a poly diisocyanate curing agent) into the reaction container, and stirring for 5 hours at a stirring linear speed of 30m/s to prepare the self-cleaning FEVE fluorocarbon coating;
wherein the mass ratio of the component A to the component B is 7: 1; and the component A comprises the following components in percentage by mass:
the wetting dispersant is dibutyl naphthalene sulfonate, the average grain size of the zinc powder is 3 micrometers, the average grain size of the amorphous silicon dioxide is 0.5 micrometers, the defoaming agent is a higher fatty acid amide defoaming agent, and the leveling agent is an organic silicon leveling agent.
Example 2
In this example, the mass ratio of the a component to the B component was 9: 1; in addition, the preparation steps of the self-cleaning FEVE fluorocarbon coating, the types, the proportions, the specific parameters and the like of the components are the same as those in the embodiment 1.
Example 3
In this example, the mass ratio of the a component to the B component was 10: 1; in addition, the preparation steps of the self-cleaning FEVE fluorocarbon coating, the types, the proportions, the specific parameters and the like of the components are the same as those in the embodiment 1.
Example 4
In this example, the mass ratio of the a component to the B component was 12: 1; in addition, the preparation steps of the self-cleaning FEVE fluorocarbon coating, the types, the proportions, the specific parameters and the like of the components are the same as those in the embodiment 1.
Example 5
In this example, the mass ratio of the a component to the B component was 14: 1; in addition, the preparation steps of the self-cleaning FEVE fluorocarbon coating, the types, the proportions, the specific parameters and the like of the components are the same as those in the embodiment 1.
Example 6
The self-cleaning FEVE fluorocarbon coating is prepared according to the following steps:
first, preparation of graphite-phase carbon nitride: placing melamine in a muffle furnace, heating to 630-650 ℃ at the heating rate of 5 ℃/min, and roasting at the temperature for 3 hours to obtain a graphite-phase carbon nitride coarse material; and naturally cooling to room temperature to obtain a light yellow solid, and grinding the light yellow solid into powder to obtain the graphite-phase carbon nitride.
Then, adding FEVE type fluorocarbon resin, wetting dispersant, zinc powder, amorphous silicon dioxide, graphite phase carbon nitride, defoaming agent, leveling agent, nano silica sol, hydroxyethyl cellulose and deionized water into a reaction container, and stirring for 45 minutes at a stirring linear speed of 15m/s to obtain a component A;
finally, adding the component B (a poly diisocyanate curing agent) into the reaction container, and stirring for 5 hours at a stirring linear speed of 30m/s to prepare the self-cleaning FEVE fluorocarbon coating;
wherein the mass ratio of the component A to the component B is 12: 1; and the component A comprises the following components in percentage by mass:
the wetting dispersant is diisopropyl naphthalene sulfonate, the average particle size of the zinc powder is 2 micrometers, the average particle size of the amorphous silicon dioxide is 0.5 micrometer, the defoaming agent is a polypropylene glycol defoaming agent, and the leveling agent is an acrylic leveling agent.
Example 7
The self-cleaning FEVE fluorocarbon coating is prepared according to the following steps:
first, preparation of graphite-phase carbon nitride: placing melamine in a muffle furnace, heating to 630-650 ℃ at the heating rate of 5 ℃/min, and roasting at the temperature for 3 hours to obtain a graphite-phase carbon nitride coarse material; and naturally cooling to room temperature to obtain a light yellow solid, and grinding the light yellow solid into powder to obtain the graphite-phase carbon nitride.
Then, adding FEVE type fluorocarbon resin, wetting dispersant, zinc powder, amorphous silicon dioxide, graphite phase carbon nitride, defoaming agent, leveling agent, nano silica sol, hydroxyethyl cellulose and deionized water into a reaction container, and stirring for 45 minutes at a stirring linear speed of 15m/s to obtain a component A;
finally, adding the component B (a poly diisocyanate curing agent) into the reaction container, and stirring for 5 hours at a stirring linear speed of 30m/s to prepare the self-cleaning FEVE fluorocarbon coating;
wherein the mass ratio of the component A to the component B is 12: 1; and the component A comprises the following components in percentage by mass:
the wetting dispersant is diisopropyl naphthalene sulfonate, the average particle size of the zinc powder is 2 micrometers, the average particle size of the amorphous silicon dioxide is 0.5 micrometer, the defoaming agent is a polypropylene glycol defoaming agent, and the leveling agent is an acrylic leveling agent.
Example 8
The self-cleaning FEVE fluorocarbon coating is prepared according to the following steps:
first, preparation of graphite-phase carbon nitride: placing melamine in a muffle furnace, heating to 630-650 ℃ at the heating rate of 5 ℃/min, and roasting at the temperature for 3 hours to obtain a graphite-phase carbon nitride coarse material; and naturally cooling to room temperature to obtain a light yellow solid, and grinding the light yellow solid into powder to obtain the graphite-phase carbon nitride.
Then, adding FEVE type fluorocarbon resin, wetting dispersant, zinc powder, amorphous silicon dioxide, graphite phase carbon nitride, defoaming agent, leveling agent, nano silica sol, hydroxyethyl cellulose and deionized water into a reaction container, and stirring for 45 minutes at a stirring linear speed of 15m/s to obtain a component A;
finally, adding the component B (a poly diisocyanate curing agent) into the reaction container, and stirring for 5 hours at a stirring linear speed of 30m/s to prepare the self-cleaning FEVE fluorocarbon coating;
wherein the mass ratio of the component A to the component B is 12: 1; and the component A comprises the following components in percentage by mass:
the wetting dispersant is diisopropyl naphthalene sulfonate, the average particle size of the zinc powder is 2 micrometers, the average particle size of the amorphous silicon dioxide is 0.5 micrometer, the defoaming agent is a polypropylene glycol defoaming agent, and the leveling agent is an acrylic leveling agent.
Comparative example
The self-cleaning FEVE fluorocarbon coating is prepared according to the following steps:
adding FEVE type fluorocarbon resin, wetting dispersant, zinc powder, amorphous silicon dioxide, defoaming agent, flatting agent, nano silica sol, hydroxyethyl cellulose and deionized water into a reaction vessel, and stirring for 45 minutes at a stirring linear speed of 15m/s to obtain a component A;
finally, adding the component B (a poly diisocyanate curing agent) into the reaction container, and stirring for 5 hours at a stirring linear speed of 30m/s to prepare the self-cleaning FEVE fluorocarbon coating;
wherein the mass ratio of the component A to the component B is 12: 1; and the component A comprises the following components in percentage by mass:
the wetting dispersant is diisopropyl naphthalene sulfonate, the average particle size of the zinc powder is 2 micrometers, the average particle size of the amorphous silicon dioxide is 0.5 micrometer, the defoaming agent is a polypropylene glycol defoaming agent, and the leveling agent is an acrylic leveling agent.
The self-cleaning FEVE fluorocarbon coatings prepared according to examples 1-8 were tested for adhesion, pencil hardness, abrasion resistance, ethanol resistance, wet heat resistance, scrub resistance, water resistance, and weatherability, and the results are shown in Table 1. The particle size distribution measurement results of the particle sizes in examples 1 to 8 are expressed by the polydispersity index (PDI), but it is fully understood by those skilled in the art that the particle size distribution may be expressed differently according to different algorithms, and the results are all within the scope of the present invention.
TABLE 1 key indexes of self-cleaning FEVE fluorocarbon coating
As can be seen from Table 1, the technical indexes of the self-cleaning FEVE fluorocarbon coating prepared in the embodiments 1-8 of the invention are higher than the standard indexes of the existing nano coating. The self-cleaning FEVE fluorocarbon coating prepared in the embodiments 1-8 meets the service performance requirements in the test results of adhesion, paint film hardness (GB/T6739-2006), wear resistance (GB/T1768-79(89)) and the like; the ethanol resistance, the water resistance, the moist heat resistance and the weather resistance also meet the requirements of the use environment.
In addition, the inventors also performed antibacterial performance tests on the coatings prepared in examples 1 to 8 and the comparative example respectively according to the standard HG/T3950-2007, and the specific test results are shown in the following table 2:
TABLE 2 antibacterial property test results of the coating
In table 2 above, the level I indicates that the composition is suitable for a place with high antibacterial performance, and the level II indicates that the composition is suitable for a place with antibacterial performance requirement. Analysis shows that the self-cleaning FEVE fluorocarbon coating prepared in the embodiments 1-8 of the invention has antibacterial performance significantly better than that of the coating prepared in the comparative example.
The embodiments of the present invention have been described in detail, but the embodiments are merely examples, and the present invention is not limited to the embodiments described above. Any equivalent modifications and substitutions to those skilled in the art are also within the scope of the present invention. Accordingly, equivalent changes and modifications made without departing from the spirit and scope of the present invention should be covered by the present invention.
Claims (7)
1. A self-cleaning FEVE fluorocarbon coating is characterized by comprising the following components in parts by mass: 1, component A and component B;
wherein the component A comprises the following components in percentage by mass:
wherein the component B is a polydiisocyanate curing agent;
and the preparation of the graphite phase carbon nitride comprises the following steps: placing melamine in a muffle furnace, heating to 630-650 ℃ at the heating rate of 5 ℃/min, and roasting at the temperature for 3 hours to obtain a graphite-phase carbon nitride coarse material; then, naturally cooling to room temperature to obtain light yellow solid, and grinding the light yellow solid into powder to obtain the graphite-phase carbon nitride;
wherein the amorphous silica has an average particle diameter of 0.5 to 1 μm.
2. A self-cleaning FEVE fluorocarbon coating according to claim 1, wherein said a component comprises the following mass fractions:
3. a self-cleaning FEVE fluorocarbon coating according to claim 1, wherein the wetting and dispersing agent is selected from any of the following: dibutylnaphthalene sulfonate, diisopropylnaphthalene sulfonate, isopropylnaphthalene sulfonate.
4. A self-cleaning FEVE fluorocarbon coating as claimed in claim 1, wherein the zinc powder has an average particle size of 2 to 3 μm.
5. A self-cleaning FEVE fluorocarbon coating according to claim 1, wherein said defoamer is selected from any one of: higher fatty acid amide defoaming agents, modified silicone resin defoaming agents, polypropylene glycol defoaming agents, and organic phosphoric acid triester defoaming agents.
6. A self-cleaning FEVE fluorocarbon coating according to claim 1, wherein the levelling agent is selected from any one of: acrylic flatting agent, organic silicon flatting agent, ethylene glycol monobutyl ether and polydimethylsiloxane.
7. The method for preparing a self-cleaning FEVE fluorocarbon coating according to claim 1, comprising the steps of:
s1: adding FEVE type fluorocarbon resin, wetting dispersant, zinc powder, amorphous silicon dioxide, graphite phase carbon nitride, defoaming agent, leveling agent, nano silica sol, hydroxyethyl cellulose and deionized water into a reaction container, and stirring for 30-45 minutes at a stirring linear speed of 10-30 m/s to obtain a component A;
s2: adding the component B into the reaction container, and stirring for 3-5 hours at a stirring linear speed of 10-30 m/s to prepare the self-cleaning FEVE fluorocarbon coating;
and the preparation of the graphite phase carbon nitride comprises the following steps: placing melamine in a muffle furnace, heating to 630-650 ℃ at the heating rate of 5 ℃/min, and roasting at the temperature for 3 hours to obtain a graphite-phase carbon nitride coarse material; and naturally cooling to room temperature to obtain a light yellow solid, and grinding the light yellow solid into powder to obtain the graphite-phase carbon nitride.
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| CN112552751A (en) * | 2020-11-30 | 2021-03-26 | 长沙理工大学 | Large-pipe-diameter inner-covering composite hydrophobic coating and preparation process thereof |
| CN113527972A (en) * | 2021-08-25 | 2021-10-22 | 青岛金芳华新型建材科技有限公司 | High-glossiness anti-oxidation coating and preparation method thereof |
| CN117210080B (en) * | 2023-10-19 | 2024-03-29 | 青岛中氟氟碳材料有限公司 | Preparation method and application of anti-pollution water-based paint for inner wall of high-speed rail |
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| CN106366787A (en) * | 2016-08-27 | 2017-02-01 | 国网山东省电力公司电力科学研究院 | Graphite phase carbon nitride modified self-cleaning super-weather-proof fluorocarbon finishing coat and preparation method thereof |
| CN106893414A (en) * | 2017-04-01 | 2017-06-27 | 湖南中智优库科技有限公司 | A kind of environment-friendly type FEVE fluorocarbon coatings and preparation method thereof |
| CN108504210A (en) * | 2018-03-01 | 2018-09-07 | 广东至诚化学工业有限公司 | A kind of self-cleaning coating and preparation method thereof |
| CN109467987A (en) * | 2018-11-14 | 2019-03-15 | 安徽兆拓新能源科技有限公司 | A kind of protective coating and preparation method thereof being applied to solar panel rack surface |
| CN110128863A (en) * | 2019-03-29 | 2019-08-16 | 中山市博海精细化工有限公司 | A kind of coating and preparation method thereof with organic matter suction-operated |
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