CN116833075A - Preparation method of self-cleaning corrosion-resistant aluminum plate - Google Patents

Preparation method of self-cleaning corrosion-resistant aluminum plate Download PDF

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Publication number
CN116833075A
CN116833075A CN202310612953.2A CN202310612953A CN116833075A CN 116833075 A CN116833075 A CN 116833075A CN 202310612953 A CN202310612953 A CN 202310612953A CN 116833075 A CN116833075 A CN 116833075A
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aluminum plate
cleaning
self
preparing
solution
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Inventor
马涛
杨强
徐晗
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Jiangsu Baida Curtain Wall Technology Co ltd
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Jiangsu Baida Curtain Wall Technology Co ltd
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Priority to CN202310612953.2A priority Critical patent/CN116833075A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
    • B05D7/16—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies using synthetic lacquers or varnishes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/36—Successively applying liquids or other fluent materials, e.g. without intermediate treatment
    • B05D1/38—Successively applying liquids or other fluent materials, e.g. without intermediate treatment with intermediate treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • B05D5/08—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface
    • B05D5/083—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface involving the use of fluoropolymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/50—Multilayers
    • B05D7/52—Two layers
    • B05D7/54—No clear coat specified
    • B05D7/546—No clear coat specified each layer being cured, at least partially, separately
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2202/00—Metallic substrate
    • B05D2202/20—Metallic substrate based on light metals
    • B05D2202/25—Metallic substrate based on light metals based on Al
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2506/00—Halogenated polymers
    • B05D2506/10—Fluorinated polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2518/00—Other type of polymers
    • B05D2518/10—Silicon-containing polymers
    • B05D2518/12—Ceramic precursors (polysiloxanes, polysilazanes)
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2601/00—Inorganic fillers
    • B05D2601/20—Inorganic fillers used for non-pigmentation effect

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Paints Or Removers (AREA)

Abstract

The invention discloses a preparation method of a self-cleaning corrosion-resistant aluminum plate, which comprises the following steps: (1) preparing a primer material; (2) preparing a finishing paint material; (3) preparation of aluminum plates: and (3) taking an aluminum plate to be treated, carrying out pretreatment, uniformly spraying a primer solution on the pretreated aluminum plate through a spray gun, placing the aluminum plate into a blast drying box after the spraying is finished, uniformly spraying a finish paint solution on a primer coating through the spray gun after the curing is finished, placing the aluminum plate into the blast drying box after the spraying is finished, and obtaining the self-cleaning corrosion-resistant aluminum plate after the curing is finished. The aluminum plate has the advantages that the aluminum plate can be prepared, external rainwater or other organic matters are reduced from adhering to the surface, the corrosion rate is reduced, and the protection effect is better.

Description

Preparation method of self-cleaning corrosion-resistant aluminum plate
Technical Field
The invention relates to the technical field of aluminum plate manufacturing, in particular to a preparation method of a self-cleaning corrosion-resistant aluminum plate.
Background
The curtain wall aluminum plate has unique texture, rich and durable color, various appearance shapes, perfect combination with glass curtain wall materials and stone curtain wall materials, perfect appearance, good quality and light weight, and is favored by owners.
After the surface of the existing aluminum plate is scratched, moisture can invade the scratch part of the surface to rust the scratch surface, the aluminum plate is gradually corroded in the long term, and the coating cannot achieve good self-cleaning and corrosion-resistant effects when the existing aluminum plate faces to the external complex environment.
Disclosure of Invention
The invention aims to provide a preparation method of a self-cleaning corrosion-resistant aluminum plate, which can be used for preparing the aluminum plate, reducing external rainwater or other organic matters from adhering to the surface, reducing the corrosion rate and achieving better protection effect.
The technical aim of the invention is realized by the following technical scheme:
the preparation method of the self-cleaning corrosion-resistant aluminum plate is characterized by comprising the following steps of:
(1) Preparing a primer material: adding carbon nanotubes into a sulfuric acid and nitric acid mixed solution, magnetically stirring under a water bath condition, filtering a reaction product through a microporous membrane filter after the reaction is completed, adding a product obtained by washing and drying after the filtration is completed and aniline into a hydrochloric acid solution, stirring ultrasonically at normal temperature, preparing a hydrochloric acid solution of ammonium persulfate and cobalt sulfate heptahydrate, mixing the two solutions while stirring, stirring for polymerization reaction, filtering through the microporous membrane filter after the reaction is completed, washing and drying through deionized water and absolute ethyl alcohol after the filtration is completed, adding the dried product and an additive into an ethyl acetate solution of an ethylene-tetrafluoroethylene copolymer, and stirring ultrasonically uniformly and dispersing to obtain a primer material.
(2) And (3) preparing a finishing paint material: dissolving montmorillonite and nano alumina in water, adding a silane coupling agent and absolute ethyl alcohol, finally adding polydimethylsiloxane, carrying out suction filtration after ultrasonic stirring, cleaning by the absolute ethyl alcohol, drying and grinding after cleaning, adding the mixture into an ethyl acetate solution of ethylene-tetrafluoroethylene copolymer, dropwise adding perfluorooctyl triethoxysilane in the ultrasonic stirring process, and continuing ultrasonic stirring and evenly dispersing to obtain the finish paint material.
(3) And (3) preparation of an aluminum plate: taking an aluminum plate to be treated, polishing the surface of the aluminum plate by adopting sand paper, cleaning the surface by deionized water after polishing, soaking in hydrochloric acid solution, cleaning by deionized water after soaking, spraying high-temperature deionized water, cleaning, drying under nitrogen atmosphere to obtain a pretreated aluminum plate, uniformly spraying primer solution on the pretreated aluminum plate by a spray gun, placing the pretreated aluminum plate in a blast drying box after spraying, uniformly spraying finishing paint solution on the primer coating by the spray gun after curing, placing the finished product in the blast drying box after spraying, and obtaining the self-cleaning corrosion-resistant aluminum plate after curing.
Preferably, the volume ratio of sulfuric acid to nitric acid in the sulfuric acid and nitric acid mixed solution in the step (1) is 3:1, the water bath temperature is 75-85 ℃, and the water bath time is 12-16 h.
Preferably, the mass ratio of the carbon nanotubes, aniline, ammonium persulfate and cobalt sulfate heptahydrate in the step (1) is 1: (8-10): (11-15): (1-2), wherein the concentration of the hydrochloric acid solution is 0.5-0.6 mol/L.
Preferably, the microporous membrane filter in (1) has a microporous pore size of 0.22. Mu.m.
Preferably, the drying condition in the step (1) is that the vacuum drying is carried out for 18-24 hours at 50 ℃.
Preferably, the silane coupling agent in (2) is selected from one of KH550, KH570 and KH 792.
Preferably, the mass ratio of montmorillonite to nano alumina in the step (2) is 1:1, and the mass volume ratio of nano alumina to silane coupling agent, polydimethylsiloxane and perfluorooctyl triethoxysilane is 1g: (2-4) mL: (1-3) mL: (0.5-1) mL.
Preferably, the preparation method of the ethyl acetate solution of the ethylene-tetrafluoroethylene copolymer in (1) and (2) comprises the following steps: the ethylene-tetrafluoroethylene copolymer is prepared by mixing 1g of ethylene-tetrafluoroethylene copolymer: 30mL of the solution was added to ethyl acetate and the mixture was stirred ultrasonically for at least 30min.
Preferably, the additive in (1) comprises silicon dioxide and perfluorooctyl triethoxysilane, and the mass volume ratio of the carbon nano tube to the silicon dioxide to the perfluorooctyl triethoxysilane is 1g: (0.2 to 0.5) g: (1-2) mL.
Preferably, the sand paper in the step (3) is 600 meshes, the polishing direction is polishing according to the left, right, upper and lower sequences of the cross shape, and the pressure of the spray gun is 6-8 bar.
In summary, the invention has the following beneficial effects: the self-cleaning corrosion-resistant aluminum plate prepared by the invention can effectively improve the contact angle between the surface and water and organic solvents, has excellent self-cleaning effect, and has better adhesion of the primer to the aluminum plate, lower corrosion rate of the finish paint, high corrosion protection rate up to 99.99% and better corrosion resistance.
Detailed Description
The following detailed description of the invention further illustrates, but is not to be construed as limiting, the invention.
Examples
A preparation method of a self-cleaning corrosion-resistant aluminum plate comprises the following steps:
(1) Preparing a primer material: adding carbon nano tubes into a mixed solution with the volume ratio of sulfuric acid to nitric acid of 3:1, magnetically stirring under the water bath condition, wherein the water bath temperature is 75 ℃, the water bath time is 12 hours, filtering reaction products through a 0.22 mu m microporous membrane filter after the reaction is finished, adding the products obtained by washing and drying after the filtration and aniline into a hydrochloric acid solution, wherein the concentration of the hydrochloric acid solution is 0.5mol/L, preparing a hydrochloric acid solution of ammonium persulfate and cobalt sulfate heptahydrate after ultrasonic stirring at normal temperature, and the mass ratio of the carbon nano tubes, aniline, ammonium persulfate and cobalt sulfate heptahydrate is 1:8:11:1, mixing the two groups of solutions while stirring, filtering through a 0.22 mu m microporous membrane filter after the completion of the reaction, washing the solution through deionized water and absolute ethyl alcohol after the completion of the reaction, drying the solution in vacuum at 50 ℃ for 18 hours, adding the dried product, silicon dioxide and perfluorooctyl triethoxysilane into an ethyl acetate solution of an ethylene-tetrafluoroethylene copolymer, wherein the mass volume ratio of the carbon nano tube to the silicon dioxide to the perfluorooctyl triethoxysilane is 1g:0.2g:1mL, and stirring with ultrasound to obtain the primer material.
(2) And (3) preparing a finishing paint material: dissolving montmorillonite and nano alumina in water, wherein the mass ratio of montmorillonite to nano alumina is 1:1, adding a silane coupling agent KH550 to absolute ethyl alcohol, finally adding polydimethylsiloxane, carrying out suction filtration after ultrasonic stirring, cleaning by absolute ethyl alcohol, drying and grinding after cleaning, adding the mixture into an ethyl acetate solution of ethylene-tetrafluoroethylene copolymer, and dropwise adding perfluorooctyl triethoxysilane in the ultrasonic stirring process, wherein the mass volume ratio of nano alumina to silane coupling agent, polydimethylsiloxane and perfluorooctyl triethoxysilane is 1g:2mL:1mL: and (3) carrying out ultrasonic stirring continuously for uniform dispersion to obtain 0.5mL of finish paint material.
(3) And (3) preparation of an aluminum plate: taking an aluminum plate to be treated, polishing the surface of the aluminum plate by adopting 600-mesh sand paper, polishing in the direction of about a cross, cleaning the surface by deionized water after polishing, soaking in hydrochloric acid solution, cleaning by deionized water after soaking, cleaning after spraying high-temperature deionized water, drying under nitrogen atmosphere to obtain the pretreated aluminum plate, uniformly spraying primer solution on the pretreated aluminum plate by a spray gun at 6bar, placing the pretreated aluminum plate in a blast drying box after spraying, uniformly spraying finishing paint solution on the primer coating by the spray gun at 6bar after curing, placing the pretreated aluminum plate in the blast drying box after spraying, and obtaining the self-cleaning corrosion-resistant aluminum plate after curing.
The preparation method of the ethyl acetate solution of the ethylene-tetrafluoroethylene copolymer comprises the following steps: the ethylene-tetrafluoroethylene copolymer is prepared by mixing 1g of ethylene-tetrafluoroethylene copolymer: 30mL of the solution was added to ethyl acetate and the mixture was stirred ultrasonically for at least 30min.
Examples
A preparation method of a self-cleaning corrosion-resistant aluminum plate comprises the following steps:
(1) Preparing a primer material: adding carbon nano tubes into a mixed solution with the volume ratio of sulfuric acid to nitric acid of 3:1, magnetically stirring under the water bath condition, wherein the water bath temperature is 80 ℃, the water bath time is 14 hours, filtering reaction products through a 0.22 mu m microporous membrane filter after the reaction is finished, adding the products obtained by washing and drying after the filtration and aniline into a hydrochloric acid solution, wherein the concentration of the hydrochloric acid solution is 0.5mol/L, preparing a hydrochloric acid solution of ammonium persulfate and cobalt sulfate heptahydrate after ultrasonic stirring at normal temperature, and the mass ratio of the carbon nano tubes, aniline, ammonium persulfate and cobalt sulfate heptahydrate is 1:9:12:1, mixing the two groups of solutions while stirring, filtering through a 0.22 mu m microporous membrane filter after the completion of the reaction, washing the solution through deionized water and absolute ethyl alcohol after the completion of the reaction, drying the solution in vacuum at 50 ℃ for 20 hours, adding the dried product, silicon dioxide and perfluorooctyl triethoxysilane into an ethyl acetate solution of an ethylene-tetrafluoroethylene copolymer, wherein the mass volume ratio of the carbon nano tube to the silicon dioxide to the perfluorooctyl triethoxysilane is 1g:0.3g: and 2mL, stirring with ultrasound, and uniformly dispersing to obtain the primer material.
(2) And (3) preparing a finishing paint material: dissolving montmorillonite and nano alumina in water, wherein the mass ratio of montmorillonite to nano alumina is 1:1, adding a silane coupling agent KH570 to absolute ethyl alcohol, finally adding polydimethylsiloxane, carrying out suction filtration after ultrasonic stirring, cleaning by absolute ethyl alcohol, drying and grinding after cleaning, adding the mixture into an ethyl acetate solution of ethylene-tetrafluoroethylene copolymer, and dropwise adding perfluorooctyl triethoxysilane in the ultrasonic stirring process, wherein the mass volume ratio of nano alumina to silane coupling agent, polydimethylsiloxane and perfluorooctyl triethoxysilane is 1g:3mL: (2 mL:1 mL), and continuing ultrasonic stirring to uniformly disperse to obtain the finish paint material.
(3) And (3) preparation of an aluminum plate: taking an aluminum plate to be treated, polishing the surface of the aluminum plate by adopting 600-mesh sand paper, polishing in the direction of about a cross, cleaning the surface by deionized water after polishing, soaking in hydrochloric acid solution, cleaning by deionized water after soaking, cleaning after spraying high-temperature deionized water, drying under nitrogen atmosphere to obtain the pretreated aluminum plate, uniformly spraying primer solution on the pretreated aluminum plate by a spray gun at 7bar, placing the pretreated aluminum plate in a blast drying box after spraying, uniformly spraying finishing paint solution on the primer coating by the spray gun at 7bar after curing, placing the pretreated aluminum plate in the blast drying box after spraying, and obtaining the self-cleaning corrosion-resistant aluminum plate after curing.
The preparation method of the ethyl acetate solution of the ethylene-tetrafluoroethylene copolymer comprises the following steps: the ethylene-tetrafluoroethylene copolymer is prepared by mixing 1g of ethylene-tetrafluoroethylene copolymer: 30mL of the solution was added to ethyl acetate and the mixture was stirred ultrasonically for at least 30min.
Examples
A preparation method of a self-cleaning corrosion-resistant aluminum plate comprises the following steps:
(1) Preparing a primer material: adding carbon nano tubes into a mixed solution with the volume ratio of sulfuric acid to nitric acid of 3:1, magnetically stirring under the water bath condition, wherein the water bath temperature is 85 ℃, the water bath time is 16 hours, filtering reaction products through a 0.22 mu m microporous membrane filter after the reaction is finished, adding the products obtained by washing and drying after the filtration and aniline into a hydrochloric acid solution, wherein the concentration of the hydrochloric acid solution is 0.6mol/L, preparing a hydrochloric acid solution of ammonium persulfate and cobalt sulfate heptahydrate after ultrasonic stirring at normal temperature, and the mass ratio of the carbon nano tubes, aniline, ammonium persulfate and cobalt sulfate heptahydrate is 1:10:15:2, mixing the two groups of solutions while stirring, filtering through a 0.22 mu m microporous membrane filter after the completion of the reaction, washing the solution through deionized water and absolute ethyl alcohol after the completion of the reaction, drying the solution in vacuum at 50 ℃ for 24 hours, adding the dried product, silicon dioxide and perfluorooctyl triethoxysilane into an ethyl acetate solution of an ethylene-tetrafluoroethylene copolymer, wherein the mass volume ratio of the carbon nano tube to the silicon dioxide to the perfluorooctyl triethoxysilane is 1g:0.5g: and 2mL, stirring with ultrasound, and uniformly dispersing to obtain the primer material.
(2) And (3) preparing a finishing paint material: dissolving montmorillonite and nano alumina in water, wherein the mass ratio of montmorillonite to nano alumina is 1:1, adding a silane coupling agent KH792 to absolute ethyl alcohol, finally adding polydimethylsiloxane, carrying out suction filtration after ultrasonic stirring, cleaning by absolute ethyl alcohol, drying and grinding after cleaning, adding the mixture into an ethyl acetate solution of ethylene-tetrafluoroethylene copolymer, and dropwise adding perfluorooctyl triethoxysilane in the ultrasonic stirring process, wherein the mass volume ratio of nano alumina to silane coupling agent, polydimethylsiloxane and perfluorooctyl triethoxysilane is 1g:4mL:3mL: and (3) 1mL, continuing ultrasonic stirring, and uniformly dispersing to obtain the finish paint material.
(3) And (3) preparation of an aluminum plate: and (3) polishing the surface of the aluminum plate to be treated by adopting 600-mesh sand paper, wherein the polishing direction is that the surfaces of the aluminum plate are sequentially polished according to the cross shape, the surfaces of the aluminum plate are cleaned by deionized water after polishing, the aluminum plate is soaked in hydrochloric acid solution, the aluminum plate is cleaned by deionized water after soaking, is cleaned after spraying high-temperature deionized water, is dried under nitrogen atmosphere, and is pretreated to obtain the pretreated aluminum plate, the primer solution is uniformly sprayed on the pretreated aluminum plate by a spray gun at 6-8 bar, the pretreated aluminum plate is placed in a blast drying box after spraying, the finish paint solution is uniformly sprayed on the primer coating by a spray gun at 8bar after curing, the aluminum plate is placed in the blast drying box after spraying, and the self-cleaning corrosion-resistant aluminum plate is obtained after curing.
The preparation method of the ethyl acetate solution of the ethylene-tetrafluoroethylene copolymer comprises the following steps: the ethylene-tetrafluoroethylene copolymer is prepared by mixing 1g of ethylene-tetrafluoroethylene copolymer: 30mL of the solution was added to ethyl acetate and the mixture was stirred ultrasonically for at least 30min.
The foregoing description of the preferred embodiments of the present invention is not intended to limit the invention, and those skilled in the art may make various modifications and equivalents within the spirit and scope of the invention, and such modifications and equivalents should also be considered as falling within the scope of the technical solution of the present invention.

Claims (10)

1. The preparation method of the self-cleaning corrosion-resistant aluminum plate is characterized by comprising the following steps of:
(1) Preparing a primer material: adding carbon nanotubes into a sulfuric acid and nitric acid mixed solution, magnetically stirring under a water bath condition, filtering a reaction product through a microporous membrane filter after the reaction is finished, adding a product obtained by washing and drying after the filtration is finished and aniline into a hydrochloric acid solution, stirring ultrasonically at normal temperature, preparing a hydrochloric acid solution of ammonium persulfate and cobalt sulfate heptahydrate, mixing the two solutions while stirring, stirring and polymerizing the two solutions after the mixing is finished, filtering the reaction product through the microporous membrane filter after the reaction is finished, washing and drying the reaction product through deionized water and absolute ethyl alcohol after the filtration is finished, adding the dried product and an additive into an ethyl acetate solution of an ethylene-tetrafluoroethylene copolymer, and stirring ultrasonically uniformly and dispersing to obtain a primer material;
(2) And (3) preparing a finishing paint material: dissolving montmorillonite and nano alumina in water, adding a silane coupling agent and absolute ethyl alcohol, finally adding polydimethylsiloxane, carrying out suction filtration after ultrasonic stirring, cleaning by the absolute ethyl alcohol, drying and grinding after cleaning, adding the mixture into an ethyl acetate solution of ethylene-tetrafluoroethylene copolymer, dropwise adding perfluorooctyl triethoxysilane in the ultrasonic stirring process, and continuing ultrasonic stirring and evenly dispersing to obtain a finish paint material;
(3) And (3) preparation of an aluminum plate: taking an aluminum plate to be treated, polishing the surface of the aluminum plate by adopting sand paper, cleaning the surface by deionized water after polishing, soaking in hydrochloric acid solution, cleaning by deionized water after soaking, spraying high-temperature deionized water, cleaning, drying under nitrogen atmosphere to obtain a pretreated aluminum plate, uniformly spraying primer solution on the pretreated aluminum plate by a spray gun, placing the pretreated aluminum plate in a blast drying box after spraying, uniformly spraying finishing paint solution on the primer coating by the spray gun after curing, placing the finished product in the blast drying box after spraying, and obtaining the self-cleaning corrosion-resistant aluminum plate after curing.
2. The method for preparing the self-cleaning corrosion-resistant aluminum plate according to claim 1, which is characterized in that: the volume ratio of sulfuric acid to nitric acid in the sulfuric acid and nitric acid mixed solution in the step (1) is 3:1, the water bath temperature is 75-85 ℃, and the water bath time is 12-16 h.
3. The method for preparing the self-cleaning corrosion-resistant aluminum plate according to claim 1, which is characterized in that: in the (1), the mass ratio of the carbon nano tube, the aniline, the ammonium persulfate and the cobalt sulfate heptahydrate is 1: (8-10): (11-15): (1-2), wherein the concentration of the hydrochloric acid solution is 0.5-0.6 mol/L.
4. The method for preparing the self-cleaning corrosion-resistant aluminum plate according to claim 1, which is characterized in that: the microporous membrane filter in the step (1) has a microporous pore diameter of 0.22 μm.
5. The method for preparing the self-cleaning corrosion-resistant aluminum plate according to claim 1, which is characterized in that: and (3) drying at the temperature of 50 ℃ for 18-24 hours under the drying condition in the step (1).
6. The method for preparing the self-cleaning corrosion-resistant aluminum plate according to claim 1, which is characterized in that: the silane coupling agent in the step (2) is selected from one of KH550, KH570 and KH 792.
7. The method for preparing the self-cleaning corrosion-resistant aluminum plate according to claim 1, which is characterized in that: the mass ratio of montmorillonite to nano alumina in the step (2) is 1:1, and the mass volume ratio of nano alumina to silane coupling agent, polydimethylsiloxane and perfluorooctyl triethoxysilane is 1g: (2-4) mL: (1-3) mL: (0.5-1) mL.
8. The method for preparing the self-cleaning corrosion-resistant aluminum plate according to claim 1, which is characterized in that: the preparation method of the ethyl acetate solution of the ethylene-tetrafluoroethylene copolymer in the (1) and the (2) comprises the following steps: the ethylene-tetrafluoroethylene copolymer is prepared by mixing 1g of ethylene-tetrafluoroethylene copolymer: 30mL of the solution was added to ethyl acetate and the mixture was stirred ultrasonically for at least 30min.
9. The method for preparing the self-cleaning corrosion-resistant aluminum plate according to claim 1, which is characterized in that: the additive in the step (1) comprises silicon dioxide and perfluorooctyl triethoxysilane, wherein the mass volume ratio of the carbon nano tube to the silicon dioxide to the perfluorooctyl triethoxysilane is 1g: (0.2 to 0.5) g: (1-2) mL.
10. The method for preparing the self-cleaning corrosion-resistant aluminum plate according to claim 1, which is characterized in that: the sand paper in the step (3) is 600 meshes, the polishing direction is polishing according to the left, right, upper and lower sequences of the cross shape, and the pressure of the spray gun is 6-8 bar.
CN202310612953.2A 2023-05-29 2023-05-29 Preparation method of self-cleaning corrosion-resistant aluminum plate Pending CN116833075A (en)

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CN104893451A (en) * 2015-06-11 2015-09-09 长沙理工大学 Anti-cavitation and abrasion-resistant paint for water pump impellers and preparation method of paint
CN109692797A (en) * 2018-12-25 2019-04-30 成都四吉达新材料科技有限公司 A kind of preparation method of aluminum veneer
CN110117443A (en) * 2019-05-05 2019-08-13 东北石油大学 A kind of super-hydrophobic electroactive anti-erosion resisting coating of normal temperature cure and preparation method thereof
CN110819176A (en) * 2019-11-18 2020-02-21 榆林学院 Preparation method of anticorrosive and antiscale coating
CN112024339A (en) * 2020-09-04 2020-12-04 江苏佰大幕墙科技有限公司 Processing technology of aluminum veneer
CN112517354A (en) * 2020-11-20 2021-03-19 榆林学院 Super-amphiphobic composite coating on heat exchange tube, preparation process thereof and flue gas heat exchange device based on super-amphiphobic composite coating
CN113150341A (en) * 2021-05-13 2021-07-23 日氟荣高分子材料(上海)有限公司 High-modulus ETFE film and preparation method thereof
CN113292874A (en) * 2021-05-17 2021-08-24 中国建筑西南设计研究院有限公司 Passive radiation refrigeration coating, preparation method thereof and coating structure
CN113604095A (en) * 2021-06-29 2021-11-05 东南大学 Porous powder loaded with super-hydrophobic particles and preparation method and application thereof
CN115041380A (en) * 2022-06-09 2022-09-13 安徽鑫强徽幕墙材料有限公司 Aluminum veneer surface spraying process

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