CN114456706A - Metal surface nano protective coating and preparation method thereof - Google Patents
Metal surface nano protective coating and preparation method thereof Download PDFInfo
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- CN114456706A CN114456706A CN202210145259.XA CN202210145259A CN114456706A CN 114456706 A CN114456706 A CN 114456706A CN 202210145259 A CN202210145259 A CN 202210145259A CN 114456706 A CN114456706 A CN 114456706A
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- 229910052751 metal Inorganic materials 0.000 title claims abstract description 75
- 239000002184 metal Substances 0.000 title claims abstract description 75
- 239000011253 protective coating Substances 0.000 title claims abstract description 63
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 30
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000000576 coating method Methods 0.000 claims abstract description 23
- 239000011248 coating agent Substances 0.000 claims abstract description 21
- 238000000498 ball milling Methods 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 18
- -1 polysiloxane Polymers 0.000 claims abstract description 18
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 18
- 239000011347 resin Substances 0.000 claims abstract description 18
- 229920005989 resin Polymers 0.000 claims abstract description 18
- 239000000080 wetting agent Substances 0.000 claims abstract description 15
- 239000011858 nanopowder Substances 0.000 claims abstract description 13
- 239000002904 solvent Substances 0.000 claims abstract description 7
- 239000011259 mixed solution Substances 0.000 claims description 55
- 239000002245 particle Substances 0.000 claims description 28
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 22
- 238000001723 curing Methods 0.000 claims description 21
- 238000010438 heat treatment Methods 0.000 claims description 14
- 238000004321 preservation Methods 0.000 claims description 14
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 claims description 14
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 11
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 10
- 238000005507 spraying Methods 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 7
- 238000005096 rolling process Methods 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- 238000005303 weighing Methods 0.000 claims description 7
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 6
- 239000000395 magnesium oxide Substances 0.000 claims description 5
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 3
- 229920001187 thermosetting polymer Polymers 0.000 claims description 3
- 239000011787 zinc oxide Substances 0.000 claims description 3
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 2
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 2
- 239000000843 powder Substances 0.000 abstract description 28
- 238000005260 corrosion Methods 0.000 abstract description 7
- 230000007797 corrosion Effects 0.000 abstract description 7
- 238000005299 abrasion Methods 0.000 abstract description 2
- 238000005054 agglomeration Methods 0.000 abstract description 2
- 230000002776 aggregation Effects 0.000 abstract description 2
- 239000006185 dispersion Substances 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract 1
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 14
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 9
- LBFUKZWYPLNNJC-UHFFFAOYSA-N cobalt(ii,iii) oxide Chemical compound [Co]=O.O=[Co]O[Co]=O LBFUKZWYPLNNJC-UHFFFAOYSA-N 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 239000012046 mixed solvent Substances 0.000 description 5
- 239000007769 metal material Substances 0.000 description 4
- 238000001029 thermal curing Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- DNIAPMSPPWPWGF-UHFFFAOYSA-N propylene glycol Substances CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
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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
- 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
-
- 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
- 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
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/80—Processes for incorporating ingredients
-
- 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
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/222—Magnesia, i.e. magnesium oxide
-
- 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
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
-
- 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
-
- 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
- C08K2003/2244—Oxides; Hydroxides of metals of zirconium
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- 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
- C08K2003/2289—Oxides; Hydroxides of metals of cobalt
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- 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
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- Wood Science & Technology (AREA)
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- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Paints Or Removers (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
The invention discloses a metal surface nano protective coating, which belongs to the technical field of metal protective coating materials and comprises the following components in parts by weight: 5-10 parts of polysiloxane resin, 5-10 parts of inorganic nano powder, 68-85 parts of solvent, 5-10 parts of silica sol, 0.1-1 part of wetting agent, 0.1-1 part of curing agent and 0.1-1 part of flatting agent; the invention also discloses a preparation method of the metal surface nano protective coating; the metal surface nano protective coating adopts polysiloxane resin and silica sol as matrixes, and can form better adhesion with the metal surface and improve the surface quality compared with common coatings; meanwhile, the inorganic nano powder is added, so that the hardness and the wear resistance of the metal surface can be improved, and compared with a common electroplated layer, the corrosion of parts due to the abrasion of a coating caused by daily use can be reduced, and the corrosion resistance of the parts is improved; and the low-temperature ball milling dispersion technology is applied, so that the problem of agglomeration of the inorganic powder in the coating at present is solved, and the effect of the inorganic nano powder in the preparation of the coating is really realized.
Description
Technical Field
The invention belongs to the technical field of metal protective coating materials, and particularly relates to a metal surface nano protective coating and a preparation method thereof.
Background
The metal material has the advantages of being high in comprehensive performance, low in price, rich in resources, high in recovery rate and the like compared with other materials, and no other material can completely replace the metal material in the foreseeable future.
Due to the active chemical property of iron elements in metal materials, except a few stainless steels, other metal materials all face the problems of corrosion and surface abrasion, and the conventional surface treatment methods are metal electroplating, paint spraying and the like, but have the defects of weak adhesion, weak corrosion resistance, unobvious surface performance improvement and the like.
Therefore, it is necessary to design a nano protective coating on a metal surface and a preparation method thereof to solve the above problems.
Disclosure of Invention
To solve the problems raised in the background art described above. The invention provides a metal surface nano protective coating and a preparation method thereof, and the coating has the characteristics of strong adhesive force, strong corrosion resistance and obvious surface property improvement.
The invention also aims to provide a preparation method of the nano protective coating on the metal surface.
In order to achieve the purpose, the invention provides the following technical scheme: a metal surface nanometer protective coating comprises the following components in parts by weight: 5-10 parts of polysiloxane resin, 5-10 parts of inorganic nano powder, 68-85 parts of solvent, 5-10 parts of silica sol, 0.1-1 part of wetting agent, 0.1-1 part of curing agent and 0.1-1 part of flatting agent.
In the invention, the particle size of the silica sol is 30-200 nm.
Further, in the invention, the inorganic nano powder is one or a composition of any of alumina, zirconia, titania, zinc oxide and magnesia.
Further, the particle size of the inorganic nano powder is 50-500 nm.
In the invention, the solvent is one or a mixture of any of water, ethanol, n-propanol and ethylene glycol.
A preparation method of a metal surface nano protective coating comprises the following steps:
s1: weighing polysiloxane resin and inorganic nano powder, uniformly mixing to obtain a mixed material, putting the mixed material into a container, keeping the mixed state, heating to 60-80 ℃, and preserving heat at the temperature for 4-6 hours for curing to obtain a mixed solution A;
s2: after the heat preservation is finished, adding a solvent into the mixed solution A, and simultaneously keeping the stirring state to obtain a mixed solution B;
s3: cooling the mixed solution B to-20 to-5 ℃, and performing ball milling for 8 to 12 hours at the temperature;
s4: after the ball milling is finished, heating the mixed solution B to 40-60 ℃, adding silica sol, and preserving the heat for 4-6 hours at the temperature to obtain mixed solution C;
s5: after the heat preservation is finished, adding a corresponding wetting agent, a curing agent and a flatting agent into the mixed solution C to obtain the metal surface nano protective coating;
s6: uniformly coating the metal surface nano protective coating on the metal surface in a spraying or rolling coating mode, and carrying out thermosetting at 80-260 ℃ to obtain the metal surface nano protective coating.
Further, in the present invention, in step S3, the particle size of the particles after ball milling of the mixed solution B is 20 to 500 nm.
Further, in the present invention, in step S6, the thickness of the metal surface nano protective coating is 20-900 nm.
Compared with the prior art, the invention has the beneficial effects that:
1. the nano protective coating on the metal surface prepared by the invention adopts polysiloxane resin and silica sol as matrixes, and can form better adhesion with the metal surface and improve the surface quality compared with common coatings.
2. The inorganic nano powder is added into the metal surface nano protective coating prepared by the invention, so that the hardness and the wear resistance of the metal surface can be improved, and compared with a common electroplated layer, the corrosion of parts caused by the wear of the coating due to daily use can be reduced, and the corrosion resistance of the parts is improved.
3. The metal surface nano protective coating prepared by the invention creatively uses a low-temperature ball milling dispersion technology, solves the problem of agglomeration of the inorganic powder in the coating at present, and really realizes the function of the inorganic nano powder in the coating preparation.
Drawings
FIG. 1 is a flow chart of the method for preparing a nano protective coating on a metal surface according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1, the present invention provides the following technical solutions: a metal surface nanometer protective coating comprises the following components in parts by weight: 5 parts of polysiloxane resin, 5 parts of cobalt oxide powder, 40 parts of water, 28 parts of ethanol, 5 parts of silica sol, 0.1 part of wetting agent, 0.1 part of curing agent and 0.1 part of flatting agent.
Specifically, the particle size of the silica sol was 30 nm.
Specifically, the particle size of the cobalt oxide powder is 50 nm.
A preparation method of a metal surface nano protective coating comprises the following steps:
s1: weighing polysiloxane resin and cobalt oxide powder, uniformly mixing to obtain a mixed material, putting the mixed material into a container, keeping the mixed state, heating to 60 ℃, and preserving heat for 6 hours at the temperature for curing to obtain a mixed solution A;
s2: after the heat preservation is finished, adding a mixed solvent consisting of water and ethanol into the mixed solution A, and simultaneously keeping the stirring state to obtain a mixed solution B;
s3: cooling the mixed solution B to-5 ℃, and carrying out ball milling for 12 hours at the temperature;
s4: after the ball milling is finished, heating the mixed solution B to 40 ℃, adding silica sol, and preserving the heat for 6 hours at the temperature to obtain mixed solution C;
s5: after the heat preservation is finished, adding a corresponding wetting agent, a curing agent and a flatting agent into the mixed solution C to obtain the metal surface nano protective coating;
s6: uniformly coating the metal surface nano protective coating on the metal surface in a spraying or rolling coating mode, and carrying out thermosetting at 80 ℃ to obtain the metal surface nano protective coating.
Specifically, in step S3, the particle size of the ball-milled particles of the mixed solution B is 20 nm.
Specifically, in step S6, the thickness of the metal surface nano protective coating is 20 nm.
Example 2
Referring to fig. 1, the present invention provides the following technical solutions: a metal surface nanometer protective coating comprises the following components in parts by weight: 10 parts of polysiloxane resin, 3 parts of alumina powder, 5 parts of zirconia powder, 40 parts of water, 20 parts of ethanol, 18 parts of n-propanol, 10 parts of silica sol, 0.5 part of wetting agent, 0.5 part of curing agent and 1 part of flatting agent.
Specifically, the particle size of the silica sol is 150 nm.
Specifically, the particle size of the alumina powder and the zirconia powder is 300 nm.
A preparation method of a metal surface nano protective coating comprises the following steps:
s1: weighing polysiloxane resin, alumina powder and zirconia powder, uniformly mixing the polysiloxane resin, the alumina powder and the zirconia powder to obtain a mixed material, putting the mixed material into a container, keeping the mixed state, heating to 70 ℃, and preserving heat for 6 hours at the temperature for curing to obtain a mixed solution A;
s2: after the heat preservation is finished, adding a mixed solvent consisting of water, ethanol and n-propanol into the mixed solution A, and simultaneously keeping the stirring state to obtain a mixed solution B;
s3: cooling the mixed solution B to-5 ℃, and carrying out ball milling for 12 hours at the temperature;
s4: after the ball milling is finished, heating the mixed solution B to 45 ℃, adding silica sol, and preserving the heat for 6 hours at the temperature to obtain mixed solution C;
s5: after the heat preservation is finished, adding a corresponding wetting agent, a curing agent and a flatting agent into the mixed solution C to obtain the metal surface nano protective coating;
s6: uniformly coating the metal surface nano protective coating on the metal surface in a spraying or rolling coating mode, and performing thermal curing at 230 ℃ to obtain the metal surface nano protective coating.
Specifically, in step S3, the particle size of the ball-milled particles of mixed liquid B is 300 nm.
Specifically, in step S6, the thickness of the metal surface nano protective coating is 900 nm.
Example 3
Referring to fig. 1, the present invention provides the following technical solutions: a metal surface nanometer protective coating comprises the following components in parts by weight: 10 parts of polysiloxane resin, 8 parts of cobalt oxide powder, 40 parts of water, 30 parts of ethanol, 10 parts of silica sol, 0.5 part of wetting agent, 0.5 part of curing agent and 1 part of flatting agent.
Specifically, the particle size of the silica sol is 100 nm.
Specifically, the particle size of the cobalt oxide powder is 200 nm.
A preparation method of a metal surface nano protective coating comprises the following steps:
s1: weighing polysiloxane resin and cobalt oxide powder, uniformly mixing to obtain a mixed material, putting the mixed material into a container, keeping the mixed state, heating to 70 ℃, and preserving heat for 6 hours at the temperature for curing to obtain a mixed solution A;
s2: after the heat preservation is finished, adding a mixed solvent consisting of water and ethanol into the mixed solution A, and simultaneously keeping the stirring state to obtain a mixed solution B;
s3: cooling the mixed solution B to-5 ℃, and carrying out ball milling for 12 hours at the temperature;
s4: after the ball milling is finished, heating the mixed solution B to 45 ℃, adding silica sol, and preserving the heat for 6 hours at the temperature to obtain mixed solution C;
s5: after the heat preservation is finished, adding a corresponding wetting agent, a curing agent and a flatting agent into the mixed solution C to obtain the metal surface nano protective coating;
s6: uniformly coating the metal surface nano protective coating on the metal surface in a spraying or rolling coating mode, and performing thermal curing at 230 ℃ to obtain the metal surface nano protective coating.
Specifically, in step S3, the particle size of the ball-milled particles of mixed liquid B is 300 nm.
Specifically, in step S6, the thickness of the metal surface nano protective coating is 900 nm.
Example 4
Referring to fig. 1, the present invention provides the following technical solutions: a metal surface nanometer protective coating comprises the following components in parts by weight: 5 parts of polysiloxane resin, 2 parts of aluminum oxide powder, 2 parts of titanium oxide powder, 2 parts of zinc oxide powder, 50 parts of water, 38 parts of n-propanol, 10 parts of silica sol, 0.5 part of wetting agent, 0.5 part of curing agent and 1 part of flatting agent.
Specifically, the particle size of the silica sol is 50 nm.
Specifically, the particle sizes of the alumina powder, the titanium oxide powder and the zinc oxide powder are 100 nm.
A preparation method of a metal surface nano protective coating comprises the following steps:
s1: weighing polysiloxane resin, alumina powder, titanium oxide powder and zinc oxide powder, uniformly mixing to obtain a mixed material, putting the mixed material into a container, keeping the mixed state, heating to 70 ℃, and keeping the temperature for 5 hours at the temperature for curing to obtain a mixed solution A;
s2: after the heat preservation is finished, adding a mixed solvent consisting of water and n-propanol into the mixed solution A, and simultaneously keeping the stirring state to obtain a mixed solution B;
s3: cooling the mixed solution B to-5 ℃, and performing ball milling for 10 hours at the temperature;
s4: after the ball milling is finished, heating the mixed solution B to 45 ℃, adding silica sol, and preserving the heat for 6 hours at the temperature to obtain mixed solution C;
s5: after the heat preservation is finished, adding a corresponding wetting agent, a curing agent and a flatting agent into the mixed solution C to obtain the metal surface nano protective coating;
s6: uniformly coating the metal surface nano protective coating on the metal surface in a spraying or rolling coating mode, and performing thermal curing at 230 ℃ to obtain the metal surface nano protective coating.
Specifically, in step S3, the particle size of the ball-milled particles of the mixed solution B is 400 nm.
Specifically, in step S6, the thickness of the metal surface nano protective coating is 800 nm.
Example 5
Referring to fig. 1, the present invention provides the following technical solutions: a metal surface nanometer protective coating comprises the following components in parts by weight: 10 parts of polysiloxane resin, 2 parts of aluminum oxide powder, 2 parts of zirconium oxide powder, 2 parts of titanium oxide powder, 2 parts of zinc oxide powder, 2 parts of magnesium oxide powder, 40 parts of water, 18 parts of ethanol, 12 parts of n-propanol, 15 parts of ethylene glycol, 10 parts of silica sol, 1 part of wetting agent, 1 part of curing agent and 1 part of flatting agent.
Specifically, the particle size of the silica sol is 200 nm.
Specifically, the particle size of the alumina powder, the zirconia powder, the titania powder, the zinc oxide powder and the magnesium oxide powder is 500 nm.
A preparation method of a metal surface nano protective coating comprises the following steps:
s1: weighing polysiloxane resin, alumina powder, zirconia powder, titanium oxide powder, zinc oxide vermicelli and magnesium oxide powder, uniformly mixing to obtain a mixed material, putting the mixed material into a container, keeping the mixed state, heating to 80 ℃, and preserving heat for 4 hours at the temperature for curing to obtain a mixed solution A;
s2: after the heat preservation is finished, adding a mixed solvent consisting of water, ethanol, n-propylene and ethylene glycol into the mixed solution A, and keeping the mixed solution A in a stirring state to obtain a mixed solution B;
s3: cooling the mixed solution B to-20 ℃, and performing ball milling for 8 hours at the temperature;
s4: after the ball milling is finished, heating the mixed solution B to 60 ℃, adding silica sol, and preserving the heat for 4 hours at the temperature to obtain mixed solution C;
s5: after the heat preservation is finished, adding a corresponding wetting agent, a curing agent and a flatting agent into the mixed solution C to obtain the metal surface nano protective coating;
s6: uniformly coating the metal surface nano protective coating on the metal surface in a spraying or rolling coating mode, and carrying out thermocuring at 260 ℃ to obtain the metal surface nano protective coating.
Specifically, in step S3, the particle size of the ball-milled particles of the mixed solution B is 500 nm.
Specifically, in step S6, the thickness of the metal surface nano protective coating is 900 nm.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A metal surface nanometer protective coating is characterized by comprising the following components in parts by weight: 5-10 parts of polysiloxane resin, 5-10 parts of inorganic nano powder, 68-85 parts of solvent, 5-10 parts of silica sol, 0.1-1 part of wetting agent, 0.1-1 part of curing agent and 0.1-1 part of flatting agent.
2. The metal surface nano protective coating according to claim 1, wherein: the particle size of the silica sol is 30-200 nm.
3. The metal surface nano protective coating according to claim 1, wherein: the inorganic nano powder is one or a composition of any more of aluminum oxide, zirconium oxide, titanium oxide, zinc oxide and magnesium oxide.
4. The metal surface nano protective coating according to claim 1, wherein: the particle size of the inorganic nano powder is 50-500 nm.
5. The metal surface nano protective coating according to claim 1, wherein: the solvent is one or a mixture of any of water, ethanol, n-propanol and ethylene glycol.
6. A preparation method of a metal surface nano protective coating is characterized by comprising the following steps:
s1: weighing polysiloxane resin and inorganic nano powder, uniformly mixing to obtain a mixed material, putting the mixed material into a container, keeping the mixed state, heating to 60-80 ℃, and preserving heat at the temperature for 4-6 hours for curing to obtain a mixed solution A;
s2: after the heat preservation is finished, adding a solvent into the mixed solution A, and simultaneously keeping the stirring state to obtain a mixed solution B;
s3: cooling the mixed solution B to-20 to-5 ℃, and performing ball milling for 8 to 12 hours at the temperature;
s4: after the ball milling is finished, heating the mixed solution B to 40-60 ℃, adding silica sol, and preserving the heat for 4-6 hours at the temperature to obtain mixed solution C;
s5: after the heat preservation is finished, adding a corresponding wetting agent, a curing agent and a flatting agent into the mixed solution C to obtain the metal surface nano protective coating;
s6: uniformly coating the metal surface nano protective coating on the metal surface in a spraying or rolling coating mode, and carrying out thermosetting at 80-260 ℃ to obtain the metal surface nano protective coating.
7. The method for preparing the nano protective coating on the metal surface according to claim 6, wherein the method comprises the following steps: in the step S3, the particle size of the particles after ball milling of the mixed solution B is 20-500 nm.
8. The method for preparing the nano protective coating on the metal surface according to claim 6, wherein the method comprises the following steps: in the step S6, the thickness of the nano protective coating on the metal surface is 20-900 nm.
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| CN112143374A (en) * | 2019-06-28 | 2020-12-29 | 重庆鑫景特种玻璃有限公司 | Heat dissipation coating and preparation method thereof |
| CN113214686A (en) * | 2021-05-18 | 2021-08-06 | 佛山东鹏洁具股份有限公司 | High-adhesion impact-resistant antibacterial faucet and surface treatment process thereof |
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| CN112143374A (en) * | 2019-06-28 | 2020-12-29 | 重庆鑫景特种玻璃有限公司 | Heat dissipation coating and preparation method thereof |
| CN111269653A (en) * | 2020-03-13 | 2020-06-12 | 洪湖市金叶烟草机械有限公司 | Self-drying nano new-structure coating for tobacco machinery and process |
| CN113214686A (en) * | 2021-05-18 | 2021-08-06 | 佛山东鹏洁具股份有限公司 | High-adhesion impact-resistant antibacterial faucet and surface treatment process thereof |
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Application publication date: 20220510 |