CN107814963B - Preparation method of corrosion-resistant vacuum coating part - Google Patents
Preparation method of corrosion-resistant vacuum coating part Download PDFInfo
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- CN107814963B CN107814963B CN201710914069.9A CN201710914069A CN107814963B CN 107814963 B CN107814963 B CN 107814963B CN 201710914069 A CN201710914069 A CN 201710914069A CN 107814963 B CN107814963 B CN 107814963B
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- 238000005260 corrosion Methods 0.000 title claims abstract description 62
- 238000001771 vacuum deposition Methods 0.000 title claims abstract description 38
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 229920003023 plastic Polymers 0.000 claims abstract description 48
- 239000004033 plastic Substances 0.000 claims abstract description 48
- 239000011248 coating agent Substances 0.000 claims abstract description 26
- 238000000576 coating method Methods 0.000 claims abstract description 26
- 239000002966 varnish Substances 0.000 claims abstract description 26
- 229910001092 metal group alloy Inorganic materials 0.000 claims abstract description 24
- 229920006254 polymer film Polymers 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 14
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 12
- 238000001816 cooling Methods 0.000 claims abstract description 5
- 239000013077 target material Substances 0.000 claims abstract description 5
- 238000004140 cleaning Methods 0.000 claims abstract description 4
- 238000003618 dip coating Methods 0.000 claims abstract description 4
- 239000003921 oil Substances 0.000 claims abstract description 4
- 238000002791 soaking Methods 0.000 claims abstract description 4
- 238000005478 sputtering type Methods 0.000 claims abstract description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 14
- 239000007822 coupling agent Substances 0.000 claims description 14
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 12
- 239000000178 monomer Substances 0.000 claims description 12
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 10
- 239000004952 Polyamide Substances 0.000 claims description 9
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 9
- 229920002647 polyamide Polymers 0.000 claims description 9
- 239000002562 thickening agent Substances 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 7
- 239000010949 copper Substances 0.000 claims description 7
- 229910052759 nickel Inorganic materials 0.000 claims description 7
- 229920002635 polyurethane Polymers 0.000 claims description 7
- 239000004814 polyurethane Substances 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 6
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052804 chromium Inorganic materials 0.000 claims description 6
- 239000011651 chromium Substances 0.000 claims description 6
- HDERJYVLTPVNRI-UHFFFAOYSA-N ethene;ethenyl acetate Chemical group C=C.CC(=O)OC=C HDERJYVLTPVNRI-UHFFFAOYSA-N 0.000 claims description 6
- 229920001038 ethylene copolymer Polymers 0.000 claims description 6
- 229910021389 graphene Inorganic materials 0.000 claims description 6
- 229910052758 niobium Inorganic materials 0.000 claims description 6
- 239000010955 niobium Substances 0.000 claims description 6
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims description 6
- 229910052763 palladium Inorganic materials 0.000 claims description 6
- 229920000098 polyolefin Polymers 0.000 claims description 6
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 6
- 150000002910 rare earth metals Chemical class 0.000 claims description 6
- 239000010936 titanium Substances 0.000 claims description 6
- 229910052719 titanium Inorganic materials 0.000 claims description 6
- 239000004793 Polystyrene Substances 0.000 claims description 5
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 5
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 5
- 229920002223 polystyrene Polymers 0.000 claims description 5
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 5
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 5
- ABTOQLMXBSRXSM-UHFFFAOYSA-N silicon tetrafluoride Chemical compound F[Si](F)(F)F ABTOQLMXBSRXSM-UHFFFAOYSA-N 0.000 claims description 5
- 239000004408 titanium dioxide Substances 0.000 claims description 5
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 3
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 3
- 150000004645 aluminates Chemical class 0.000 claims description 3
- 239000012948 isocyanate Substances 0.000 claims description 3
- 150000002513 isocyanates Chemical class 0.000 claims description 3
- 229920002521 macromolecule Polymers 0.000 claims description 3
- 229920002401 polyacrylamide Polymers 0.000 claims description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 3
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims description 3
- 239000001267 polyvinylpyrrolidone Substances 0.000 claims description 3
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 abstract description 17
- 239000002184 metal Substances 0.000 abstract description 17
- 230000000694 effects Effects 0.000 abstract description 3
- 239000010408 film Substances 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 239000002253 acid Substances 0.000 description 5
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- 230000005587 bubbling Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 5
- 239000000758 substrate Substances 0.000 description 5
- 238000003756 stirring Methods 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 238000004544 sputter deposition Methods 0.000 description 3
- 238000004873 anchoring Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
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- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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- 230000035618 desquamation Effects 0.000 description 1
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- 238000010438 heat treatment Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
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- 238000002156 mixing Methods 0.000 description 1
- 239000002120 nanofilm Substances 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
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- 239000010409 thin film Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/042—Coating with two or more layers, where at least one layer of a composition contains a polymer binder
- C08J7/0423—Coating with two or more layers, where at least one layer of a composition contains a polymer binder with at least one layer of inorganic material and at least one layer of a composition containing a polymer binder
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/003—Alloys based on aluminium containing at least 2.6% of one or more of the elements: tin, lead, antimony, bismuth, cadmium, and titanium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
- C22C30/02—Alloys containing less than 50% by weight of each constituent containing copper
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/14—Metallic material, boron or silicon
- C23C14/20—Metallic material, boron or silicon on organic substrates
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/24—Vacuum evaporation
- C23C14/28—Vacuum evaporation by wave energy or particle radiation
- C23C14/30—Vacuum evaporation by wave energy or particle radiation by electron bombardment
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2300/00—Characterised by the use of unspecified polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/26—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers modified by chemical after-treatment
- C08J2423/28—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers modified by chemical after-treatment by reaction with halogens or halogen-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2425/00—Characterised by the use of 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 an aromatic carbocyclic ring; Derivatives of such polymers
- C08J2425/02—Homopolymers or copolymers of hydrocarbons
- C08J2425/04—Homopolymers or copolymers of styrene
- C08J2425/06—Polystyrene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2431/00—Characterised by the use of 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 an acyloxy radical of a saturated carboxylic acid, or carbonic acid, or of a haloformic acid
- C08J2431/02—Characterised by the use of omopolymers or copolymers of esters of monocarboxylic acids
- C08J2431/04—Homopolymers or copolymers of vinyl acetate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2475/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2475/04—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2477/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Inorganic Chemistry (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Toxicology (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Physical Vapour Deposition (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a preparation method of a corrosion-resistant vacuum coating piece, which comprises the following steps: the method comprises the steps of soaking a plastic piece to be subjected to vacuum coating in an oil removing agent, cleaning the plastic piece by using flame, dip-coating the plastic piece after being cleaned by the flame with a polymer film, baking the plastic piece dip-coated with the polymer film, placing the baked plastic piece in a vacuum coating machine, selecting a metal alloy as a target material, bombarding the metal alloy by an electron gun of a sputtering type coating machine, and finally coating corrosion-resistant varnish on the plastic piece after cooling. The invention has the technical effects that the polymer film is added between the plastic part and the metal coating film, so that the bonding strength between the plastic part and the metal coating film is improved, and the metal coating film is prevented from falling off; meanwhile, the metal coating adopts a metal alloy form, so that the performance of the coated product can be more diversified, and the strength is more improved; and finally, the corrosion-resistant varnish outside the metal coating improves the corrosion resistance of the vacuum coating piece, and the vacuum coating piece has wider application range and longer service life.
Description
Technical Field
The invention relates to a vacuum coating technology, in particular to a preparation method of a corrosion-resistant vacuum coating piece.
Background
The method of depositing the metal or compound onto the substrate to be coated by evaporation or sputtering in vacuum is vacuum coating. In vacuum coating, a target is generally heated to evaporate surface components in the form of atomic groups or ions, and the surface components are deposited on the surface of a substrate to form a thin film through a film forming process. For sputtering coating, electrons or high-energy laser is utilized to bombard a target material, surface components are sputtered out in the form of atomic groups or ions and finally deposited on the surface of a substrate, and a film is formed through a film forming process.
With the diversification of customer demands, the coating of a single metal cannot meet the existing market, so that more requirements such as corrosion resistance are further provided for the vacuum coating part. The existing process for plating metal on the plastic part is not mature, and the main reason is that the bonding strength between the plastic part and the metal part is not high and the plastic part is easy to peel off.
Disclosure of Invention
The invention aims to solve the defects of the prior art and provide a preparation method of a corrosion-resistant vacuum coating part, which is simple and has good coating adhesion.
In order to achieve the purpose, the preparation method of the corrosion-resistant vacuum coating piece comprises the following steps:
soaking a plastic part needing vacuum coating in an oil removing agent, cleaning the plastic part by using flame, and dip-coating the plastic part cleaned by the flame with a polymer film, wherein the polymer film comprises 40-50 parts by weight of vinyl acetate-ethylene copolymer, 30-50 parts by weight of chlorinated polyolefin, 20-30 parts by weight of polystyrene and 10-20 parts by weight of polyamide;
baking the plastic part dipped with the polymer film, then placing the baked plastic part in a vacuum coating machine, selecting a metal alloy as a target material, bombarding the metal alloy by an electron gun of a sputtering type coating machine, performing vacuum coating on the plastic part in the vacuum coating machine, and finally coating a layer of metal alloy on the surface of the plastic part, wherein the metal alloy comprises 40-50 parts by weight of aluminum, 20-30 parts by weight of chromium, 10-15 parts by weight of copper, 10-15 parts by weight of titanium, 1-5 parts by weight of niobium, 1-5 parts by weight of nickel, 1-2 parts by weight of rare earth and 1-5 parts by weight of palladium;
and step three, after cooling, coating a corrosion-resistant varnish on the plastic part, wherein the corrosion-resistant varnish comprises, by weight, 40-50 parts of polyurethane, 10-15 parts of acrylic monomers, 10-15 parts of ionic olefinic monomers, 1-5 parts of curing agents, 1-5 parts of thickening agents, 1-5 parts of graphene, 1-5 parts of nano corrosion-resistant materials and 5-10 parts of coupling agents.
The nano corrosion-resistant material in the corrosion-resistant varnish comprises, by weight, 20-30 parts of aluminum oxide, 30-40 parts of silicon tetrafluoride, 10-15 parts of titanium dioxide, 5-10 parts of zirconium oxide and 5-10 parts of silicon carbide.
The curing agent in the corrosion-resistant varnish comprises 2 parts by weight of isocyanate: 1 part of a mixture of polyamides.
The thickening agent in the corrosion-resistant varnish is one of polyvinyl alcohol, polyacrylamide, polyvinylpyrrolidone and polyethylene oxide.
The coupling agent in the corrosion-resistant varnish is a titanate coupling agent or an aluminate coupling agent.
The thickness of the flexible macromolecule is 0.1-0.5 μm.
The thickness of the metal alloy sputtered on the plastic part is 0.1-0.3 μm.
The plastic part with the dip-coated polymer film is baked at the temperature of 70-80 ℃ for 2-3 h.
The vacuum degree in the vacuum coating machine is 5 multiplied by 10-2Pa-10×10-4Pa, the current of the electron gun is 3-15A.
The carboxyl in the vinyl acetate-ethylene copolymer in the high molecular film can be plated with metal to generate hydrogen bonds to play a role in anchoring, the polyolefin bond of chlorinated polyolefin is similar to the plastic substrate in compatibility principle, the long chain in the polystyrene and the polyamide reacts with the hydroxyl bond of the plastic substrate to play a role in chemical anchoring, and in addition, the polyamide can be better connected with the vinyl acetate-ethylene copolymer and the metal plated material to play a role in bridging, so that the connection strength of a plastic part and a vacuum coating layer is improved, and the coated film is not easy to peel off.
The aluminum in the metal alloy has excellent gas barrier property, moisture barrier property and light shielding property, has stronger barrier property to oxygen and water vapor, can almost block all ultraviolet rays, visible light and infrared rays, and simultaneously has good conductivity and can eliminate electrostatic effect. Chromium can increase the surface finish, improve corrosion performance and corrosion resistance. Nickel has high hardness and can improve corrosion resistance. The ductility of copper is better, prevents the condition cohesion deterioration, the phenomenon of desquamation etc. of working of plastics and nickel layer when expanding with heat and contracting with cold bending. Palladium, as a noble metal, is excellent in ductility, and can act synergistically with copper, and only a small amount is required to rapidly improve the ductility of the entire metal alloy. Titanium is very light in texture, not only tough but also antistatic. Niobium has good thermal conductivity, high melting point and good corrosion resistance, and rare earth can improve the overall strength of the alloy and play a role in catalysis.
The preparation method of the metal alloy comprises the following steps of 20-30 parts of chromium, 10-15 parts of copper, 10-15 parts of titanium, 1-5 parts of niobium, 1-5 parts of nickel, 1-2 parts of rare earth and 1-5 parts of palladium; heating to a molten state, then adding 40-50 parts of aluminum for coating when cooling to 700 ℃, and finally obtaining the metal alloy.
The polyurethane in the corrosion-resistant varnish can improve the strength of the varnish, and the graphene can promote acrylic monomers and ionic olefinic monomers to be blended into the polyurethane to play a role in connection.
The preparation method of the corrosion-resistant varnish comprises the steps of putting 40-50 parts of polyurethane, 10-15 parts of acrylic monomers and 10-15 parts of ionic olefinic monomers into a stirring kettle, starting stirring, slowly adding 1-5 parts of graphene, 1-5 parts of nano corrosion-resistant materials and 5-10 parts of coupling agents, controlling the stirring speed at 600-2500 r/min, adding 1-5 parts of curing agents and 1-5 parts of thickening agents, adjusting the rotating speed to 600-800 r/min, and stirring for 10 minutes to obtain the corrosion-resistant varnish.
The aluminum oxide and the zirconium oxide of the nano corrosion-resistant material have good corrosion resistance, the titanium dioxide promotes the powder connection, and the silicon tetrafluoride and the silicon carbide have high strength and can play a synergistic effect. The preparation method of the nano corrosion-resistant material comprises the steps of mixing the raw materials according to the proportion, and grinding the mixture into particles for use.
The preparation method of the corrosion-resistant vacuum coated part has the technical effects that the polymer film is added between the plastic part and the metal coating film, so that the adhesion between the plastic part and the metal coating film is promoted, the adhesion strength between the plastic part and the metal coating film is improved, and the metal coating film is prevented from falling off; meanwhile, the metal coating adopts a metal alloy form, so that the performance of the coated product can be more diversified, and the strength is more improved; and finally, the corrosion-resistant varnish outside the metal coating improves the corrosion resistance of the vacuum coating piece, and the vacuum coating piece has wider application range and longer service life.
Detailed Description
The present invention will be further described with reference to the following examples.
Example 1:
the preparation method of the corrosion-resistant vacuum coated part provided by the embodiment comprises the following steps:
soaking a plastic part needing vacuum coating in an oil removing agent, cleaning the plastic part by using flame, and dip-coating the plastic part cleaned by the flame with a polymer film, wherein the polymer film comprises 40 parts by weight of vinyl acetate-ethylene copolymer, 30 parts by weight of chlorinated polyolefin, 20 parts by weight of polystyrene and 10 parts by weight of polyamide;
baking the plastic part dip-coated with the polymer film, then placing the baked plastic part in a vacuum coating machine, selecting a metal alloy as a target material, bombarding the metal alloy by an electron gun of the sputtering coating machine, performing vacuum coating on the plastic part in the vacuum coating machine, and finally coating a layer of metal alloy on the surface of the plastic part, wherein the metal alloy comprises 40 parts by weight of aluminum, 20 parts by weight of chromium, 10 parts by weight of copper, 10 parts by weight of titanium, 1 part by weight of niobium, 1 part by weight of nickel, 1 part by weight of rare earth and 1 part by weight of palladium;
and step three, after cooling, coating a corrosion-resistant varnish on the plastic part, wherein the corrosion-resistant varnish comprises 40 parts by weight of polyurethane, 10 parts by weight of acrylic monomer, 10 parts by weight of ionic olefinic monomer, 1 part by weight of curing agent, 1 part by weight of thickening agent, 1 part by weight of graphene, 1 part by weight of nano corrosion-resistant material and 5 parts by weight of coupling agent.
The nano corrosion-resistant material in the corrosion-resistant varnish comprises, by weight, 20 parts of aluminum oxide, 30 parts of silicon tetrafluoride, 10 parts of titanium dioxide, 5 parts of zirconium oxide and 5 parts of silicon carbide.
The curing agent in the corrosion-resistant varnish comprises 2 parts by weight of isocyanate: 1 part of a mixture of polyamides.
The thickening agent in the corrosion-resistant varnish is one of polyvinyl alcohol, polyacrylamide, polyvinylpyrrolidone and polyethylene oxide.
The coupling agent in the corrosion-resistant varnish is a titanate coupling agent or an aluminate coupling agent.
The thickness of the flexible macromolecule is 0.1-0.5 μm.
The thickness of the metal alloy sputtered on the plastic part is 0.1-0.3 μm.
The plastic part with the dip-coated polymer film is baked at the temperature of 70-80 ℃ for 2-3 h.
The vacuum degree in the vacuum coating machine is 5 multiplied by 10-2Pa-10×10-4Pa, the current of the electron gun is 3-15A.
The vacuum coating part prepared by the embodiment is subjected to acid and alkali resistance test, and does not have the phenomena of color change, bubbling, rusting and the like after being soaked for 48 hours.
Example 2:
the preparation method of the corrosion-resistant vacuum coated part provided by this embodiment is substantially the same as that of embodiment 1, but in the specific operation process, the polymer film comprises, by weight, 50 parts of vinyl acetate-ethylene copolymer, 50 parts of chlorinated polyolefin, 30 parts of polystyrene, and 20 parts of polyamide.
The vacuum coating part prepared by the embodiment is subjected to acid and alkali resistance test, and does not have the phenomena of color change, bubbling, rusting and the like after being soaked for 48 hours.
Example 3:
the preparation method of the corrosion-resistant vacuum coated part provided by the embodiment is the same as that of the embodiment 1 in general, but in the specific operation process, the metal alloy comprises 50 parts by weight of aluminum, 30 parts by weight of chromium, 15 parts by weight of copper, 15 parts by weight of titanium, 5 parts by weight of niobium, 5 parts by weight of nickel, 2 parts by weight of rare earth and 5 parts by weight of palladium.
The vacuum coating part prepared by the embodiment is subjected to acid and alkali resistance test, and does not have the phenomena of color change, bubbling, rusting and the like after being soaked for 48 hours.
Example 4:
the preparation method of the corrosion-resistant vacuum coated part provided by this embodiment is substantially the same as that in embodiment 1, but in the specific operation process, the corrosion-resistant varnish includes, by weight, 50 parts of polyurethane, 10 to 15 parts of acrylic monomer, 15 parts of ionic ethylenic monomer, 5 parts of curing agent, 5 parts of thickener, 5 parts of graphene, 5 parts of nano corrosion-resistant material, and 10 parts of coupling agent.
The vacuum coating part prepared by the embodiment is subjected to acid and alkali resistance test, and does not have the phenomena of color change, bubbling, rusting and the like after being soaked for 48 hours.
Example 5:
the preparation method of the corrosion-resistant vacuum coated part provided by the embodiment is the same as that of the embodiment 1 in general, but in the specific operation process, the nano corrosion-resistant material comprises 30 parts by weight of aluminum oxide, 40 parts by weight of silicon tetrafluoride, 15 parts by weight of titanium dioxide, 10 parts by weight of zirconium oxide and 10 parts by weight of silicon carbide.
The vacuum coating part prepared by the embodiment is subjected to acid and alkali resistance test, and does not have the phenomena of color change, bubbling, rusting and the like after being soaked for 48 hours.
Claims (6)
1. The preparation method of the corrosion-resistant vacuum coating part is characterized by comprising the following steps of:
soaking a plastic part needing vacuum coating in an oil removing agent, cleaning the plastic part by using flame, and dip-coating the plastic part cleaned by the flame with a polymer film, wherein the polymer film comprises 40-50 parts by weight of vinyl acetate-ethylene copolymer, 30-50 parts by weight of chlorinated polyolefin, 20-30 parts by weight of polystyrene and 10-20 parts by weight of polyamide;
baking the plastic part dipped with the polymer film, then placing the baked plastic part in a vacuum coating machine, selecting a metal alloy as a target material, bombarding the metal alloy by an electron gun of a sputtering type coating machine, performing vacuum coating on the plastic part in the vacuum coating machine, and finally coating a layer of metal alloy on the surface of the plastic part, wherein the metal alloy comprises 40-50 parts by weight of aluminum, 20-30 parts by weight of chromium, 10-15 parts by weight of copper, 10-15 parts by weight of titanium, 1-5 parts by weight of niobium, 1-5 parts by weight of nickel, 1-2 parts by weight of rare earth and 1-5 parts by weight of palladium;
step three, after cooling, coating a corrosion-resistant varnish on the plastic part, wherein the corrosion-resistant varnish comprises, by weight, 40-50 parts of polyurethane, 10-15 parts of acrylic monomers, 10-15 parts of ionic olefinic monomers, 1-5 parts of curing agents, 1-5 parts of thickening agents, 1-5 parts of graphene, 1-5 parts of nano corrosion-resistant materials and 5-10 parts of coupling agents; the nano corrosion-resistant material in the corrosion-resistant varnish comprises, by weight, 20-30 parts of aluminum oxide, 30-40 parts of silicon tetrafluoride, 10-15 parts of titanium dioxide, 5-10 parts of zirconium oxide and 5-10 parts of silicon carbide; the curing agent in the corrosion-resistant varnish comprises 2 parts by weight of isocyanate: 1 part of a mixture of polyamides; the thickening agent in the corrosion-resistant varnish is one of polyvinyl alcohol, polyacrylamide, polyvinylpyrrolidone and polyethylene oxide.
2. The method for preparing a corrosion-resistant vacuum coated member according to claim 1, wherein: the coupling agent in the corrosion-resistant varnish is a titanate coupling agent or an aluminate coupling agent.
3. The method for preparing a corrosion-resistant vacuum coated member according to claim 1 or 2, wherein: the thickness of the flexible macromolecule is 0.1-0.5 μm.
4. The method for preparing a corrosion-resistant vacuum coated member according to claim 1 or 2, wherein: the plastic part with the dip-coated polymer film is baked at the temperature of 70-80 ℃ for 2-3 h.
5. The method for preparing a corrosion-resistant vacuum coated member according to claim 1 or 2, wherein: the thickness of the metal alloy sputtered on the plastic part is 0.1-0.3 μm.
6. The method for preparing a corrosion-resistant vacuum coated member according to claim 1 or 2, wherein: the vacuum degree in the vacuum coating machine is 5 multiplied by 10-2Pa-10×10-4Pa, electron gunThe current of (A) is 3-15A.
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| CN110629166A (en) * | 2019-10-31 | 2019-12-31 | 苏州市三同真空镀膜有限公司 | Corrosion-resistant scratch-resistant metal film for electronic product and preparation method thereof |
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| KR20060121334A (en) * | 2005-05-24 | 2006-11-29 | (주) 태양기전 | The method of surface coating for plastic form and its using coating layer |
| CN103030827A (en) * | 2012-12-31 | 2013-04-10 | 厦门建霖工业有限公司 | Method of increasing binding force between vacuum coating and plastic part base material at low temperature |
| CN105860808A (en) * | 2014-11-05 | 2016-08-17 | 陈薇 | Abrasion-resistant engineering machinery waterproof paint high in adhesive force |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20060121334A (en) * | 2005-05-24 | 2006-11-29 | (주) 태양기전 | The method of surface coating for plastic form and its using coating layer |
| CN103030827A (en) * | 2012-12-31 | 2013-04-10 | 厦门建霖工业有限公司 | Method of increasing binding force between vacuum coating and plastic part base material at low temperature |
| CN105860808A (en) * | 2014-11-05 | 2016-08-17 | 陈薇 | Abrasion-resistant engineering machinery waterproof paint high in adhesive force |
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Effective date of registration: 20240509 Address after: 523000 Room 301, building 1, No.13 Huanbao South Road, Shatian Town, Dongguan City, Guangdong Province Patentee after: Dongguan Liheng Coating Technology Co.,Ltd. Country or region after: China Address before: 315111 Jiaoganghe Village, Wuxiang Township, Yinzhou District, Ningbo City, Zhejiang Province Patentee before: Xu Renzhu Country or region before: China |