CN114798384A - Method for spraying surface of copper handicraft - Google Patents
Method for spraying surface of copper handicraft Download PDFInfo
- Publication number
- CN114798384A CN114798384A CN202210358948.9A CN202210358948A CN114798384A CN 114798384 A CN114798384 A CN 114798384A CN 202210358948 A CN202210358948 A CN 202210358948A CN 114798384 A CN114798384 A CN 114798384A
- Authority
- CN
- China
- Prior art keywords
- treatment
- spraying
- copper artware
- copper
- stirring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 100
- 239000010949 copper Substances 0.000 title claims abstract description 100
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 100
- 238000005507 spraying Methods 0.000 title claims abstract description 89
- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000001291 vacuum drying Methods 0.000 claims abstract description 39
- 239000011248 coating agent Substances 0.000 claims description 59
- 238000000576 coating method Methods 0.000 claims description 59
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 57
- 238000001035 drying Methods 0.000 claims description 48
- 238000003756 stirring Methods 0.000 claims description 44
- 230000003075 superhydrophobic effect Effects 0.000 claims description 41
- 238000000265 homogenisation Methods 0.000 claims description 26
- IRIAEXORFWYRCZ-UHFFFAOYSA-N Butylbenzyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCC1=CC=CC=C1 IRIAEXORFWYRCZ-UHFFFAOYSA-N 0.000 claims description 24
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 24
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 24
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 24
- 239000002994 raw material Substances 0.000 claims description 24
- 238000005303 weighing Methods 0.000 claims description 24
- 239000005543 nano-size silicon particle Substances 0.000 claims description 23
- 235000012239 silicon dioxide Nutrition 0.000 claims description 23
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 22
- 239000003792 electrolyte Substances 0.000 claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 20
- HSJPMRKMPBAUAU-UHFFFAOYSA-N cerium(3+);trinitrate Chemical compound [Ce+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O HSJPMRKMPBAUAU-UHFFFAOYSA-N 0.000 claims description 20
- 239000000243 solution Substances 0.000 claims description 20
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims description 12
- 235000013539 calcium stearate Nutrition 0.000 claims description 12
- 239000008116 calcium stearate Substances 0.000 claims description 12
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 12
- 239000003822 epoxy resin Substances 0.000 claims description 12
- 230000004927 fusion Effects 0.000 claims description 12
- 238000007689 inspection Methods 0.000 claims description 12
- 238000004806 packaging method and process Methods 0.000 claims description 12
- 229920000647 polyepoxide Polymers 0.000 claims description 12
- 229920002503 polyoxyethylene-polyoxypropylene Polymers 0.000 claims description 12
- 229960004063 propylene glycol Drugs 0.000 claims description 12
- 239000002904 solvent Substances 0.000 claims description 12
- 239000004408 titanium dioxide Substances 0.000 claims description 12
- HKALCGYRGQDRCY-UHFFFAOYSA-K C(CCCCCCCCCCCCC)(=O)[O-].[Ce+3].C(CCCCCCCCCCCCC)(=O)[O-].C(CCCCCCCCCCCCC)(=O)[O-] Chemical compound C(CCCCCCCCCCCCC)(=O)[O-].[Ce+3].C(CCCCCCCCCCCCC)(=O)[O-].C(CCCCCCCCCCCCC)(=O)[O-] HKALCGYRGQDRCY-UHFFFAOYSA-K 0.000 claims description 11
- 108010022355 Fibroins Proteins 0.000 claims description 11
- 229910021380 Manganese Chloride Inorganic materials 0.000 claims description 11
- GLFNIEUTAYBVOC-UHFFFAOYSA-L Manganese chloride Chemical compound Cl[Mn]Cl GLFNIEUTAYBVOC-UHFFFAOYSA-L 0.000 claims description 11
- 238000001914 filtration Methods 0.000 claims description 11
- 229940099607 manganese chloride Drugs 0.000 claims description 11
- 235000002867 manganese chloride Nutrition 0.000 claims description 11
- 239000011565 manganese chloride Substances 0.000 claims description 11
- 238000005406 washing Methods 0.000 claims description 11
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 10
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 239000008367 deionised water Substances 0.000 claims description 10
- 229910021641 deionized water Inorganic materials 0.000 claims description 10
- 238000000703 high-speed centrifugation Methods 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 10
- 239000011259 mixed solution Substances 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 10
- 229910052757 nitrogen Inorganic materials 0.000 claims description 10
- 239000002244 precipitate Substances 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 10
- 230000007797 corrosion Effects 0.000 abstract description 8
- 238000005260 corrosion Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 6
- 238000004381 surface treatment Methods 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000002360 preparation method Methods 0.000 description 11
- 239000000377 silicon dioxide Substances 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 8
- 239000000047 product Substances 0.000 description 5
- 239000013078 crystal Substances 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 2
- 239000002114 nanocomposite Substances 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- UBAZGMLMVVQSCD-UHFFFAOYSA-N carbon dioxide;molecular oxygen Chemical compound O=O.O=C=O UBAZGMLMVVQSCD-UHFFFAOYSA-N 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/06—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
- B05D3/061—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation using U.V.
- B05D3/062—Pretreatment
-
- 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
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/10—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by other chemical means
- B05D3/102—Pretreatment of metallic substrates
-
- 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
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/10—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by other chemical means
- B05D3/105—Intermediate treatments
-
- 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
-
- 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
- B05D7/24—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 for applying particular liquids or other fluent materials
-
- 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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
-
- 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
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/08—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of copper or alloys based thereon
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F3/00—Electrolytic etching or polishing
- C25F3/02—Etching
-
- 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
- B05D2202/40—Metallic substrate based on other transition elements
- B05D2202/45—Metallic substrate based on other transition elements based on Cu
-
- 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
- B05D2504/00—Epoxy polymers
-
- 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
Abstract
The invention discloses a method for spraying the surface of a copper handicraft, which relates to the technical field of copper product surface treatment and comprises the following steps: s1, electrochemical treatment; s2, ultraviolet-assisted vacuum drying treatment; s3, spray coating; s4, carrying out cryogenic treatment; and S5, spray coating treatment. The method applies the technologies of electrochemical treatment, cryogenic treatment, spraying treatment and the like to the surface treatment of the copper artware, effectively improves the corrosion resistance and the stress resistance of the copper artware, and has obvious effect.
Description
Technical Field
The invention relates to the technical field of copper product surface treatment, in particular to a method for spraying the surface of a copper handicraft.
Background
The copper product is widely applied to the fields of daily necessities, industrial goods and the like. However, copper has poor chemical stability in air, is easy to react with oxygen, carbon dioxide, chloride and sulfide in air, changes the surface color of copper, has poor oxidation resistance, and affects the service life and the surface attractiveness. In order to solve the problems, in the prior art, a thin film is formed on the surface of a copper product by pickling treatment and washing treatment and then drying, so that the copper product is obtained. Therefore, in order to avoid the disadvantages of the prior art, it is necessary to perform a surface treatment to improve the surface properties thereof.
The incense burner and Buddha statue as a representative copper handicraft have wide practical application, good collection value, limited service life, close connection between service life and environmental factors, and corrosion easily occurs if the incense burner and Buddha statue are placed in a humid and non-ventilated environment, which not only affects the beauty but also shortens the service life. Therefore, it is necessary to improve the corrosion resistance, and spraying a corrosion-resistant coating on the surface is one of the most common methods with the widest application, and the nano composite coating is a coating with better effect in the present day. The nano composite coating generally consists of polymers and nano particles, can be coated on the surface of a matrix by methods such as spraying, brushing, dip coating, spin coating and the like, and is a method for preparing the super-hydrophobic coating with simple and convenient operation and obvious effect. However, the nano material is easy to agglomerate during application, thereby affecting the quality of the finished product.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a method for spraying the surface of a copper handicraft, which has the advantages of high corrosion resistance and stress resistance.
In order to achieve the purpose, the invention provides the following technical scheme:
a method for spraying the surface of a copper handicraft comprises the following steps:
s1, electrochemical treatment:
immersing the copper artware into electrolyte for electrochemical treatment, and filtering out for later use after the electrochemical treatment is finished;
s2, ultraviolet-assisted vacuum drying treatment:
placing the copper artware subjected to electrochemical treatment in the step S1 into a vacuum drying oven for vacuum drying treatment, and performing ultraviolet irradiation treatment while drying;
s3, spray coating:
uniformly spraying the super-hydrophobic coating on the surface of the handicraft;
s4, cryogenic treatment:
placing the copper artware subjected to spraying treatment in the step S3 in liquid nitrogen for cryogenic treatment, and taking out for later use after the cryogenic treatment is completed;
s5, spray coating treatment:
and uniformly spraying the super-hydrophobic coating on the surface of the copper artware subjected to cryogenic treatment, and drying.
More preferably, the electrolyte solution in step S1 comprises the following components in parts by weight: 4-6% of manganese chloride, 2-5% of cerium tetradecanoate, 6-8% of ethanol and the balance of pure water.
By adopting the technical scheme, a certain rough structure is prepared on the surface of the copper artware in an electrochemical mode, and a foundation is laid for preparing the super-hydrophobic coating on the surface of the copper artware.
More preferably, the vacuum degree during the vacuum drying treatment in step S2 is controlled to be 2 to 3Pa, and the drying temperature is controlled to be 40 to 50 ℃.
More preferably, in the ultraviolet light irradiation treatment in step S2, the wavelength of the ultraviolet light is 200 to 400 nm.
By adopting the technical scheme, the drying treatment is carried out under the vacuum condition with the assistance of ultraviolet light, the surface of the copper artware is activated while drying, and meanwhile, the etching of the surface can be refined.
More preferably, the time of the cryogenic treatment in the step S4 is 10 to 20 min.
More preferably, the superhydrophobic coating in step S3 and the superhydrophobic coating in step S5 are the same coating, and the preparation method thereof is as follows:
(1) preparing modified nano silicon dioxide:
A. uniformly mixing nano silicon dioxide and cerium nitrate solution according to the weight-volume ratio of 1g: 40-50 mL, adding a silk fibroin solution into the mixed solution, stirring at a constant speed for 1-2 h, dropwise adding ammonia water while stirring, standing for 1-2 h, sealing, and standing in a dark environment for reaction for 2-3 d;
B. standing in a dark environment, performing high-speed centrifugation, performing centrifugal washing on the precipitate for 3-5 times by using deionized water, and drying;
(2) weighing raw materials:
weighing 35-45% of epoxy resin, 5-6% of modified nano silicon dioxide, 0.6-0.8% of 1, 2-propylene glycol, 0.3-0.5% of polyoxyethylene polyoxypropylene ether, 0.4-0.8% of calcium stearate, 1-1.6% of butyl benzyl phthalate, 1.3-1.6% of titanium dioxide, 0.7-0.9% of talcum powder and the balance of solvent according to corresponding weight percentages;
(3) high-pressure homogeneous fusion:
and (3) placing all the raw materials weighed in the step (2) together in a micro-jet high-pressure homogenizer for high-pressure homogenization treatment, and then performing quality inspection and packaging.
More preferably, the variable speed stirring in the operation A in the step (1) is firstly stirring at a rotating speed of 3000-5000 rpm for 10-20 min, and then stirring at a rotating speed of 800-1000 rpm.
More preferably, the uniform stirring speed in the operation A in the step (1) is 80-90 rpm.
More preferably, the working pressure is controlled to be 100-120 MPa during the high-pressure homogenization treatment in the step (3), and the time of the homogenization treatment is 20-30 min.
By adopting the technical scheme, the specially-made super-hydrophobic coating is uniformly sprayed on the surface of the treated artware, the super-hydrophobic coating can be tightly combined with the surface of the copper artware due to the advantages of pretreatment, then the deep cooling treatment is carried out, the mechanical property of the artware is improved, the adhesion of the coating is further enhanced, and finally the spraying is carried out, so that the problem of small pits on the surface possibly existing in the spraying can be solved, the surface is more compact and smooth, and the protective effect of the coating on the copper artware is enhanced. The modified nano-silica is added into the super-hydrophobic coating, the silk fibroin changes the crystallization process of the nano-silica, the crystal structure is obviously weakened and is in an amorphous structure, the morphology structure is changed from spherical crystals into petal-shaped crystals formed by sheets and needles, the modified nano-silica can be well fused with the matrix component of the coating, and the corrosion resistance of the coating can be obviously improved.
In summary, compared with the prior art, the invention has the following beneficial effects:
the method applies the technologies of electrochemical treatment, cryogenic treatment, spraying treatment and the like to the surface treatment of the copper artware, effectively improves the corrosion resistance and the stress resistance of the copper artware, and has obvious effect.
Detailed Description
The present invention will be described in detail with reference to examples.
Example 1:
a method for spraying the surface of a copper handicraft comprises the following steps:
s1, electrochemical treatment:
immersing the copper artware into electrolyte for electrochemical treatment, and filtering out for later use after the electrochemical treatment is finished, wherein the electrolyte comprises the following components in parts by weight: 4% of manganese chloride, 2% of cerium tetradecanoate, 6% of ethanol and the balance of pure water;
s2, ultraviolet-assisted vacuum drying treatment:
placing the copper artware subjected to electrochemical treatment in the step S1 into a vacuum drying oven for vacuum drying treatment, controlling the vacuum degree to be 2Pa and the drying temperature to be 40 ℃, and carrying out ultraviolet irradiation treatment while drying, wherein the wavelength of ultraviolet light is 200 nm;
s3, spray coating:
uniformly spraying the super-hydrophobic coating on the surface of the handicraft;
s4, cryogenic treatment:
placing the copper artware subjected to spraying treatment in the step S3 in liquid nitrogen for subzero treatment, wherein the subzero treatment time is 10min, and taking out the copper artware for later use after the subzero treatment is completed;
s5, spray coating treatment:
and uniformly spraying the super-hydrophobic coating on the surface of the copper artware subjected to cryogenic treatment, and drying.
The super-hydrophobic coating in the step S3 and the step S5 are the same coating, and the preparation method comprises the following steps:
(1) preparing modified nano silicon dioxide:
A. uniformly mixing nano silicon dioxide and cerium nitrate solution according to the weight volume ratio of 1g:40mL, adding a silk fibroin solution into the mixed solution, stirring at the rotating speed of 3000rpm for 10min, then at the rotating speed of 800rpm, stirring at the constant speed of 80rpm after the total stirring time is 1h, dropwise adding ammonia water while stirring, then standing for 1h, sealing, and standing in a dark environment for reaction for 2 d;
B. standing in a dark environment, performing high-speed centrifugation, performing centrifugal washing on the precipitate for 3 times by using deionized water, and drying;
(2) weighing raw materials:
weighing 35% of epoxy resin, 5% of modified nano-silica, 0.6% of 1, 2-propylene glycol, 0.3% of polyoxyethylene polyoxypropylene ether, 0.4% of calcium stearate, 1% of butyl benzyl phthalate, 1.3% of titanium dioxide, 0.7% of talcum powder and the balance of solvent according to corresponding weight percentages;
(3) high-pressure homogeneous fusion:
and (3) placing the raw materials weighed in the step (2) together in a micro-jet high-pressure homogenizer for high-pressure homogenization treatment, controlling the working pressure to be 100MPa, and carrying out quality inspection and packaging after 20min of homogenization treatment.
Example 2:
a method for spraying the surface of a copper handicraft comprises the following steps:
s1, electrochemical treatment:
immersing the copper artware into electrolyte for electrochemical treatment, and filtering out for later use after the electrochemical treatment is finished, wherein the electrolyte comprises the following components in parts by weight: 5% of manganese chloride, 3.5% of cerium tetradecanoate, 7% of ethanol and the balance of pure water;
s2, ultraviolet-assisted vacuum drying treatment:
placing the copper artware subjected to electrochemical treatment in the step S1 into a vacuum drying oven for vacuum drying treatment, controlling the vacuum degree to be 2.5Pa and the drying temperature to be 5 ℃, and performing ultraviolet irradiation treatment while drying, wherein the wavelength of ultraviolet light is 300 nm;
s3, spray coating:
uniformly spraying the super-hydrophobic coating on the surface of the handicraft;
s4, cryogenic treatment:
placing the copper artware subjected to spraying treatment in the step S3 in liquid nitrogen for subzero treatment, wherein the subzero treatment time is 15min, and taking out the copper artware for later use after the subzero treatment is completed;
s5, spray coating treatment:
and uniformly spraying the super-hydrophobic coating on the surface of the copper artware subjected to cryogenic treatment, and drying.
The super-hydrophobic coating in the step S3 and the step S5 are the same coating, and the preparation method comprises the following steps:
(1) preparing modified nano silicon dioxide:
A. uniformly mixing nano silicon dioxide and cerium nitrate solution according to the weight volume ratio of 1g:45mL, adding a silk fibroin solution into the mixed solution, stirring at the rotating speed of 4000rpm for 15min, then at the rotating speed of 900rpm, stirring at the constant speed of 85rpm after the total stirring time is 1.5h, dropwise adding ammonia water while stirring, standing for 1.5h, sealing, and standing in a dark environment for reaction for 2.5 d;
B. standing in a dark environment, performing high-speed centrifugation, performing centrifugal washing on the precipitate for 4 times by using deionized water, and drying;
(2) weighing raw materials:
weighing 40% of epoxy resin, 5.5% of modified nano-silica, 0.7% of 1, 2-propylene glycol, 0.4% of polyoxyethylene polyoxypropylene ether, 0.6% of calcium stearate, 1.3% of butyl benzyl phthalate, 1.45% of titanium dioxide, 0.8% of talcum powder and the balance of solvent according to corresponding weight percentages;
(3) high-pressure homogeneous fusion:
and (3) placing the raw materials weighed in the step (2) together in a micro-jet high-pressure homogenizer for high-pressure homogenization treatment, controlling the working pressure to be 110MPa, and performing quality inspection and packaging after 25min of homogenization treatment.
Example 3:
a method for spraying the surface of a copper handicraft comprises the following steps:
s1, electrochemical treatment:
immersing the copper artware into electrolyte for electrochemical treatment, and filtering out for later use after the electrochemical treatment is finished, wherein the electrolyte comprises the following components in parts by weight: 6% of manganese chloride, 5% of cerium tetradecanoate, 8% of ethanol and the balance of pure water;
s2, ultraviolet-assisted vacuum drying treatment:
placing the copper artware subjected to electrochemical treatment in the step S1 into a vacuum drying oven for vacuum drying treatment, controlling the vacuum degree to be 3Pa, controlling the drying temperature to be 50 ℃, and performing ultraviolet irradiation treatment while drying, wherein the wavelength of ultraviolet light is 400 nm;
s3, spray coating:
uniformly spraying the super-hydrophobic coating on the surface of the handicraft;
s4, cryogenic treatment:
placing the copper artware subjected to spraying treatment in the step S3 in liquid nitrogen for subzero treatment, wherein the subzero treatment time is 20min, and taking out the copper artware for later use after the subzero treatment is finished;
s5, spray coating treatment:
and uniformly spraying the super-hydrophobic coating on the surface of the copper artware subjected to cryogenic treatment, and drying.
The super-hydrophobic coating in the step S3 and the step S5 are the same coating, and the preparation method comprises the following steps:
(1) preparing modified nano silicon dioxide:
A. uniformly mixing nano silicon dioxide and cerium nitrate solution according to the weight volume ratio of 1g:50mL, adding a silk fibroin solution into the mixed solution, stirring at the rotating speed of 5000rpm for 20min, then at the rotating speed of 1000rpm, stirring at a constant speed of 90rpm after the total stirring time is 2 hours, dropwise adding ammonia water while stirring, standing for 2 hours, sealing, and standing in a dark environment for reaction for 3 d;
B. standing in a dark environment, performing high-speed centrifugation, performing centrifugal washing on the precipitate for 5 times by using deionized water, and drying;
(2) weighing raw materials:
weighing 45% of epoxy resin, 6% of modified nano-silica, 0.8% of 1, 2-propylene glycol, 0.5% of polyoxyethylene polyoxypropylene ether, 0.8% of calcium stearate, 1.6% of butyl benzyl phthalate, 1.6% of titanium dioxide, 0.9% of talcum powder and the balance of solvent according to corresponding weight percentages;
(3) high-pressure homogeneous fusion:
and (3) placing the raw materials weighed in the step (2) together in a micro-jet high-pressure homogenizer for high-pressure homogenization treatment, controlling the working pressure to be 120MPa, and carrying out quality inspection and packaging after 30min of homogenization treatment.
Comparative example 1:
a method for spraying the surface of a copper handicraft comprises the following steps:
s1, ultraviolet-assisted vacuum drying treatment:
placing the copper artware in a vacuum drying oven for vacuum drying treatment, controlling the vacuum degree to be 2.5Pa and the drying temperature to be 5 ℃, and carrying out ultraviolet irradiation treatment while drying, wherein the wavelength of ultraviolet light is 300 nm;
s2, spray coating:
uniformly spraying the super-hydrophobic coating on the surface of the handicraft;
s3, cryogenic treatment:
placing the copper artware subjected to spraying treatment in the step S2 in liquid nitrogen for subzero treatment, wherein the subzero treatment time is 15min, and taking out the copper artware for later use after the subzero treatment is completed;
s4, spray coating treatment:
and uniformly spraying the super-hydrophobic coating on the surface of the copper artware subjected to cryogenic treatment, and drying.
The super-hydrophobic coating in the step S2 and the step S4 are the same coating, and the preparation method comprises the following steps:
(1) preparing modified nano silicon dioxide:
A. uniformly mixing nano silicon dioxide and cerium nitrate solution according to the weight volume ratio of 1g:45mL, adding a silk fibroin solution into the mixed solution, stirring at the rotating speed of 4000rpm for 15min, then at the rotating speed of 900rpm, stirring at the constant speed of 85rpm after the total stirring time is 1.5h, dropwise adding ammonia water while stirring, standing for 1.5h, sealing, and standing in a dark environment for reaction for 2.5 d;
B. standing in a dark environment, performing high-speed centrifugation, performing centrifugal washing on the precipitate for 4 times by using deionized water, and drying;
(2) weighing raw materials:
weighing 40% of epoxy resin, 5.5% of modified nano-silica, 0.7% of 1, 2-propylene glycol, 0.4% of polyoxyethylene polyoxypropylene ether, 0.6% of calcium stearate, 1.3% of butyl benzyl phthalate, 1.45% of titanium dioxide, 0.8% of talcum powder and the balance of solvent according to corresponding weight percentages;
(3) high-pressure homogeneous fusion:
and (3) placing the raw materials weighed in the step (2) together in a micro-jet high-pressure homogenizer for high-pressure homogenization treatment, controlling the working pressure to be 110MPa, and performing quality inspection and packaging after 25min of homogenization treatment.
Comparative example 2:
a method for spraying the surface of a copper handicraft comprises the following steps:
s1, electrochemical treatment:
immersing the copper artware into electrolyte for electrochemical treatment, and filtering out for later use after the electrochemical treatment is finished, wherein the electrolyte comprises the following components in parts by weight: 5% of manganese chloride, 3.5% of cerium tetradecanoate, 7% of ethanol and the balance of pure water;
s2, vacuum drying treatment:
placing the copper artware subjected to electrochemical treatment in the step S1 into a vacuum drying oven for vacuum drying treatment, wherein the vacuum degree is controlled to be 2.5Pa, and the drying temperature is 5 ℃;
s3, spray coating:
uniformly spraying the super-hydrophobic coating on the surface of the handicraft;
s4, cryogenic treatment:
placing the copper artware subjected to spraying treatment in the step S3 in liquid nitrogen for subzero treatment, wherein the subzero treatment time is 15min, and taking out the copper artware for later use after the subzero treatment is completed;
s5, spray coating treatment:
and uniformly spraying the super-hydrophobic coating on the surface of the copper artware subjected to cryogenic treatment, and drying.
The super-hydrophobic coating in the step S3 and the step S5 are the same coating, and the preparation method comprises the following steps:
(1) preparing modified nano silicon dioxide:
A. uniformly mixing nano silicon dioxide and cerium nitrate solution according to the weight volume ratio of 1g:45mL, adding a silk fibroin solution into the mixed solution, stirring at the rotating speed of 4000rpm for 15min, then at the rotating speed of 900rpm, stirring at the constant speed of 85rpm after the total stirring time is 1.5h, dropwise adding ammonia water while stirring, standing for 1.5h, sealing, and standing in a dark environment for reaction for 2.5 d;
B. standing in a dark environment, performing high-speed centrifugation, performing centrifugal washing on the precipitate for 4 times by using deionized water, and drying;
(2) weighing raw materials:
weighing 40% of epoxy resin, 5.5% of modified nano-silica, 0.7% of 1, 2-propylene glycol, 0.4% of polyoxyethylene polyoxypropylene ether, 0.6% of calcium stearate, 1.3% of butyl benzyl phthalate, 1.45% of titanium dioxide, 0.8% of talcum powder and the balance of solvent according to corresponding weight percentages;
(3) high-pressure homogeneous fusion:
and (3) placing the raw materials weighed in the step (2) together in a micro-jet high-pressure homogenizer for high-pressure homogenization treatment, controlling the working pressure to be 110MPa, and performing quality inspection and packaging after 25min of homogenization treatment.
Comparative example 3:
a method for spraying the surface of a copper handicraft comprises the following steps:
s1, electrochemical treatment:
immersing the copper artware into electrolyte for electrochemical treatment, and filtering out for later use after the electrochemical treatment is finished, wherein the electrolyte comprises the following components in parts by weight: 5% of manganese chloride, 3.5% of cerium tetradecanoate, 7% of ethanol and the balance of pure water;
s2, ultraviolet-assisted vacuum drying treatment:
placing the copper artware subjected to electrochemical treatment in the step S1 into a vacuum drying oven for vacuum drying treatment, controlling the vacuum degree to be 2.5Pa and the drying temperature to be 5 ℃, and performing ultraviolet irradiation treatment while drying, wherein the wavelength of ultraviolet light is 300 nm;
s3, spray coating:
uniformly spraying the super-hydrophobic coating on the surface of the handicraft;
s4, spray coating treatment:
and uniformly spraying the super-hydrophobic coating on the surface of the copper artware after spraying treatment, and drying.
The super-hydrophobic coating in the step S3 and the step S4 are the same coating, and the preparation method comprises the following steps:
(1) preparing modified nano silicon dioxide:
A. uniformly mixing nano silicon dioxide and cerium nitrate solution according to the weight volume ratio of 1g:45mL, adding a silk fibroin solution into the mixed solution, stirring at the rotating speed of 4000rpm for 15min, then at the rotating speed of 900rpm, stirring at the constant speed of 85rpm after the total stirring time is 1.5h, dropwise adding ammonia water while stirring, standing for 1.5h, sealing, and standing in a dark environment for reaction for 2.5 d;
B. standing in a dark environment, performing high-speed centrifugation, performing centrifugal washing on the precipitate for 4 times by using deionized water, and drying;
(2) weighing raw materials:
weighing 40% of epoxy resin, 5.5% of modified nano-silica, 0.7% of 1, 2-propylene glycol, 0.4% of polyoxyethylene polyoxypropylene ether, 0.6% of calcium stearate, 1.3% of butyl benzyl phthalate, 1.45% of titanium dioxide, 0.8% of talcum powder and the balance of solvent according to corresponding weight percentages;
(3) high-pressure homogeneous fusion:
and (3) placing the raw materials weighed in the step (2) together in a micro-jet high-pressure homogenizer for high-pressure homogenization treatment, controlling the working pressure to be 110MPa, and performing quality inspection and packaging after 25min of homogenization treatment.
Comparative example 4:
a method for spraying the surface of a copper handicraft comprises the following steps:
s1, electrochemical treatment:
immersing the copper artware into electrolyte for electrochemical treatment, and filtering out for later use after the electrochemical treatment is finished, wherein the electrolyte comprises the following components in parts by weight: 5% of manganese chloride, 3.5% of cerium tetradecanoate, 7% of ethanol and the balance of pure water;
s2, ultraviolet-assisted vacuum drying treatment:
placing the copper artware subjected to electrochemical treatment in the step S1 into a vacuum drying oven for vacuum drying treatment, controlling the vacuum degree to be 2.5Pa and the drying temperature to be 5 ℃, and performing ultraviolet irradiation treatment while drying, wherein the wavelength of ultraviolet light is 300 nm;
s3, spray coating:
uniformly spraying the super-hydrophobic coating on the surface of the handicraft;
s4, cryogenic treatment:
and (5) placing the copper artware subjected to the spraying treatment in the step (S3) in liquid nitrogen for subzero treatment, wherein the subzero treatment time is 15min, taking out the copper artware after the subzero treatment is finished, and drying the copper artware.
The preparation method of the super-hydrophobic coating in the step S3 comprises the following steps:
(1) preparing modified nano silicon dioxide:
A. uniformly mixing nano silicon dioxide and cerium nitrate solution according to the weight volume ratio of 1g:45mL, adding a silk fibroin solution into the mixed solution, stirring at the rotating speed of 4000rpm for 15min, then at the rotating speed of 900rpm, stirring at the constant speed of 85rpm after the total stirring time is 1.5h, dropwise adding ammonia water while stirring, standing for 1.5h, sealing, and standing in a dark environment for reaction for 2.5 d;
B. standing in a dark environment, performing high-speed centrifugation, performing centrifugal washing on the precipitate for 4 times by using deionized water, and drying;
(2) weighing raw materials:
weighing 40% of epoxy resin, 5.5% of modified nano-silica, 0.7% of 1, 2-propylene glycol, 0.4% of polyoxyethylene polyoxypropylene ether, 0.6% of calcium stearate, 1.3% of butyl benzyl phthalate, 1.45% of titanium dioxide, 0.8% of talcum powder and the balance of solvent according to corresponding weight percentages;
(3) high-pressure homogeneous fusion:
and (3) placing the raw materials weighed in the step (2) together in a micro-jet high-pressure homogenizer for high-pressure homogenization treatment, controlling the working pressure to be 110MPa, and performing quality inspection and packaging after 25min of homogenization treatment.
Comparative example 5:
a method for spraying the surface of a copper handicraft comprises the following steps:
s1, electrochemical treatment:
immersing the copper artware into electrolyte for electrochemical treatment, and filtering out for later use after the electrochemical treatment is finished, wherein the electrolyte comprises the following components in parts by weight: 5% of manganese chloride, 3.5% of cerium tetradecanoate, 7% of ethanol and the balance of pure water;
s2, ultraviolet-assisted vacuum drying treatment:
placing the copper artware subjected to electrochemical treatment in the step S1 into a vacuum drying oven for vacuum drying treatment, controlling the vacuum degree to be 2.5Pa and the drying temperature to be 5 ℃, and performing ultraviolet irradiation treatment while drying, wherein the wavelength of ultraviolet light is 300 nm;
s3, spray coating:
and (3) uniformly spraying the super-hydrophobic coating on the surface of the handicraft, and drying.
The preparation method of the super-hydrophobic coating in the step S3 comprises the following steps:
(1) preparing modified nano silicon dioxide:
A. uniformly mixing nano silicon dioxide and cerium nitrate solution according to the weight volume ratio of 1g:45mL, adding a silk fibroin solution into the mixed solution, stirring at the rotating speed of 4000rpm for 15min, then at the rotating speed of 900rpm, stirring at the constant speed of 85rpm after the total stirring time is 1.5h, dropwise adding ammonia water while stirring, standing for 1.5h, sealing, and standing in a dark environment for reaction for 2.5 d;
B. standing in dark environment, performing high-speed centrifugation, performing centrifugal washing on the precipitate for 4 times by using deionized water, and drying;
(2) weighing raw materials:
weighing 40% of epoxy resin, 5.5% of modified nano-silica, 0.7% of 1, 2-propylene glycol, 0.4% of polyoxyethylene polyoxypropylene ether, 0.6% of calcium stearate, 1.3% of butyl benzyl phthalate, 1.45% of titanium dioxide, 0.8% of talcum powder and the balance of solvent according to corresponding weight percentages;
(3) high-pressure homogeneous fusion:
and (3) placing the raw materials weighed in the step (2) together in a micro-jet high-pressure homogenizer for high-pressure homogenization treatment, controlling the working pressure to be 110MPa, and performing quality inspection and packaging after 25min of homogenization treatment.
Comparative example 6:
a method for spraying the surface of a copper handicraft comprises the following steps:
s1, electrochemical treatment:
immersing the copper artware into electrolyte for electrochemical treatment, and filtering out for later use after the electrochemical treatment is finished, wherein the electrolyte comprises the following components in parts by weight: 5% of manganese chloride, 3.5% of cerium tetradecanoate, 7% of ethanol and the balance of pure water;
s2, ultraviolet-assisted vacuum drying treatment:
placing the copper artware subjected to electrochemical treatment in the step S1 into a vacuum drying oven for vacuum drying treatment, controlling the vacuum degree to be 2.5Pa and the drying temperature to be 5 ℃, and performing ultraviolet irradiation treatment while drying, wherein the wavelength of ultraviolet light is 300 nm;
s3, spray coating:
uniformly spraying the super-hydrophobic coating on the surface of the handicraft;
s4, cryogenic treatment:
placing the copper artware subjected to spraying treatment in the step S3 in liquid nitrogen for subzero treatment, wherein the subzero treatment time is 15min, and taking out the copper artware for later use after the subzero treatment is finished;
s5, spray coating treatment:
and uniformly spraying the super-hydrophobic coating on the surface of the copper artware subjected to cryogenic treatment, and drying.
The super-hydrophobic coating in the step S3 and the step S5 are the same coating, and the preparation method comprises the following steps:
(1) weighing raw materials:
weighing 40% of epoxy resin, 5.5% of nano silicon dioxide, 0.7% of 1, 2-propylene glycol, 0.4% of polyoxyethylene polyoxypropylene ether, 0.6% of calcium stearate, 1.3% of butyl benzyl phthalate, 1.45% of titanium dioxide, 0.8% of talcum powder and the balance of solvent according to corresponding weight percentages;
(2) high-pressure homogeneous fusion:
and (2) placing the raw materials weighed in the step (1) together in a micro-jet high-pressure homogenizer for high-pressure homogenization treatment, controlling the working pressure to be 110MPa, and performing quality inspection and packaging after 25min of homogenization treatment.
Comparative example 7:
a method for spraying the surface of a copper handicraft comprises the following steps:
s1, electrochemical treatment:
immersing the copper artware into electrolyte for electrochemical treatment, and filtering out for later use after the electrochemical treatment is finished, wherein the electrolyte comprises the following components in parts by weight: 5% of manganese chloride, 3.5% of cerium tetradecanoate, 7% of ethanol and the balance of pure water;
s2, ultraviolet-assisted vacuum drying treatment:
placing the copper artware subjected to electrochemical treatment in the step S1 into a vacuum drying oven for vacuum drying treatment, controlling the vacuum degree to be 2.5Pa and the drying temperature to be 5 ℃, and performing ultraviolet irradiation treatment while drying, wherein the wavelength of ultraviolet light is 300 nm;
s3, spray coating:
uniformly spraying the super-hydrophobic coating on the surface of the handicraft;
s4, cryogenic treatment:
placing the copper artware subjected to spraying treatment in the step S3 in liquid nitrogen for subzero treatment, wherein the subzero treatment time is 15min, and taking out the copper artware for later use after the subzero treatment is completed;
s5, spray coating treatment:
and uniformly spraying the super-hydrophobic coating on the surface of the copper artware subjected to cryogenic treatment, and drying.
The super-hydrophobic coating in the step S3 and the step S5 are the same coating, and the preparation method comprises the following steps:
(1) weighing raw materials:
weighing 40% of epoxy resin, 0.7% of 1, 2-propylene glycol, 0.4% of polyoxyethylene polyoxypropylene ether, 0.6% of calcium stearate, 1.3% of butyl benzyl phthalate, 1.45% of titanium dioxide, 0.8% of talcum powder and the balance of solvent according to corresponding weight percentages;
(2) high-pressure homogeneous fusion:
and (2) placing the raw materials weighed in the step (1) together in a micro-jet high-pressure homogenizer for high-pressure homogenization treatment, controlling the working pressure to be 110MPa, and performing quality inspection and packaging after 25min of homogenization treatment.
In order to compare the technical effects of the application, the copper artware of the same specification and model produced in the same batch is selected as a test object, the selected copper artware is randomly divided into 8 groups with equal quality and quantity, then the method of the embodiment 2 and the method of the comparative examples 1 to 7 are respectively adopted to correspondingly process each group of copper artware, after the performance test is completed, the performance test is carried out on each group of copper artware, and the specific test comparison data is shown in the following table 1:
TABLE 1
As can be seen from the above table 1, the corrosion resistance and the stress resistance of the copper artware are effectively improved by applying the technologies such as electrochemical treatment, cryogenic treatment, spraying treatment and the like to the surface treatment of the copper artware, and the effect is obvious.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (9)
1. The method for spraying the surface of the copper artware is characterized by comprising the following steps of:
s1, electrochemical treatment:
immersing the copper artware into electrolyte for electrochemical treatment, and filtering out for later use after the electrochemical treatment is finished;
s2, ultraviolet-assisted vacuum drying treatment:
placing the copper artware subjected to electrochemical treatment in the step S1 into a vacuum drying oven for vacuum drying treatment, and performing ultraviolet irradiation treatment while drying;
s3, spray coating:
uniformly spraying the super-hydrophobic coating on the surface of the handicraft;
s4, cryogenic treatment:
placing the copper artware subjected to spraying treatment in the step S3 in liquid nitrogen for cryogenic treatment, and taking out for later use after the cryogenic treatment is completed;
s5, spray coating treatment:
and uniformly spraying the super-hydrophobic coating on the surface of the copper artware subjected to cryogenic treatment, and drying.
2. The method for spraying the surface of the copper artware according to claim 1, wherein the electrolyte in the step S1 comprises the following components in parts by weight: 4-6% of manganese chloride, 2-5% of cerium tetradecanoate, 6-8% of ethanol and the balance of pure water.
3. The method for spraying the surface of the copper artware according to claim 1, wherein the vacuum degree during the vacuum drying treatment in the step S2 is controlled to be 2-3 Pa, and the drying temperature is 40-50 ℃.
4. The method for spraying the surface of the copper artware according to claim 1, wherein the wavelength of the ultraviolet light is 200 to 400nm during the ultraviolet light irradiation treatment in the step S2.
5. The method for spraying the surface of the copper artware according to claim 1, wherein the time of the cryogenic treatment in the step S4 is 10-20 min.
6. The method for spraying the surface of copper artware according to claim 1, wherein the superhydrophobic coating in step S3 and step S5 is the same coating, and the method for preparing the superhydrophobic coating comprises the following steps:
(1) preparing modified nano silicon dioxide:
A. uniformly mixing nano silicon dioxide and cerium nitrate solution according to the weight-volume ratio of 1g: 40-50 mL, adding a silk fibroin solution into the mixed solution, stirring at a constant speed for 1-2 h, dropwise adding ammonia water while stirring, standing for 1-2 h, sealing, and standing in a dark environment for reaction for 2-3 d;
B. standing in a dark environment, performing high-speed centrifugation, performing centrifugal washing on the precipitate for 3-5 times by using deionized water, and drying;
(2) weighing raw materials:
weighing 35-45% of epoxy resin, 5-6% of modified nano silicon dioxide, 0.6-0.8% of 1, 2-propylene glycol, 0.3-0.5% of polyoxyethylene polyoxypropylene ether, 0.4-0.8% of calcium stearate, 1-1.6% of butyl benzyl phthalate, 1.3-1.6% of titanium dioxide, 0.7-0.9% of talcum powder and the balance of solvent according to corresponding weight percentages;
(3) high-pressure homogeneous fusion:
and (3) placing all the raw materials weighed in the step (2) together in a micro-jet high-pressure homogenizer for high-pressure homogenization treatment, and then performing quality inspection and packaging.
7. The method for spraying the surface of the copper artware according to claim 6, wherein the variable speed stirring in the operation A in the step (1) is firstly stirring at a rotating speed of 3000-5000 rpm for 10-20 min and then stirring at a rotating speed of 800-1000 rpm.
8. The method for spraying the surface of the copper artware according to claim 6, wherein the uniform stirring speed in the operation A in the step (1) is 80-90 rpm.
9. The method for spraying the surface of the copper artware according to claim 6, wherein the working pressure is controlled to be 100-120 MPa during the high-pressure homogenization treatment in the step (3), and the time for the homogenization treatment is 20-30 min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210358948.9A CN114798384A (en) | 2022-04-06 | 2022-04-06 | Method for spraying surface of copper handicraft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210358948.9A CN114798384A (en) | 2022-04-06 | 2022-04-06 | Method for spraying surface of copper handicraft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114798384A true CN114798384A (en) | 2022-07-29 |
Family
ID=82533946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210358948.9A Pending CN114798384A (en) | 2022-04-06 | 2022-04-06 | Method for spraying surface of copper handicraft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114798384A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102140659A (en) * | 2011-02-24 | 2011-08-03 | 西北工业大学 | Method for preparing superhydrophobic film |
| CN103451688A (en) * | 2013-09-04 | 2013-12-18 | 吉林大学 | Method for preparing super-hydrophobic biomimetic surface on copper substrate |
-
2022
- 2022-04-06 CN CN202210358948.9A patent/CN114798384A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102140659A (en) * | 2011-02-24 | 2011-08-03 | 西北工业大学 | Method for preparing superhydrophobic film |
| CN103451688A (en) * | 2013-09-04 | 2013-12-18 | 吉林大学 | Method for preparing super-hydrophobic biomimetic surface on copper substrate |
Non-Patent Citations (2)
| Title |
|---|
| 徐双梦等: "丝素蛋白改性的纳米氧化锌的性能研究", 《功能材料》 * |
| 范仁德编: "《废橡胶的综合利用技术》", 31 December 1989 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108395558B (en) | Preparation method of transparent conductive film of high-transmittance nano silver wire | |
| CN105544180A (en) | A coating-treatment surface modification method for ultrahigh molecular weight polyethylene fibers | |
| CN112226129A (en) | Antibacterial coating and preparation method thereof | |
| CN112574455A (en) | High-hardness high-wear-resistance transparent polyimide hardened film with good coating adhesion | |
| CN114798384A (en) | Method for spraying surface of copper handicraft | |
| CN113105766B (en) | Superhard wear-resistant transparent film material with silicon-doped carbonized polymer dots as construction elements and preparation method thereof | |
| CN107418368B (en) | A kind of pump preparation process of corrosion-resistant abrasion coating | |
| US11492502B2 (en) | Polyimide composite, preparation method, and application thereof | |
| KR102431148B1 (en) | A method for manufacturing recycled powdery paint using waste powdery paint | |
| CN110130095A (en) | A kind of high-performance aromatic polymer fiber and preparation method | |
| CN113321936B (en) | High-strength biomass membrane material and preparation method thereof | |
| CN106966606A (en) | A kind of preparation method of solar energy glass surface anti-reflection film | |
| CN108753134A (en) | A kind of aqueous metallic paint and preparation method thereof | |
| CN112853336A (en) | Chromium-free surface treating agent for aluminum can cover packaging material, and preparation method and passivation process thereof | |
| CN102912628A (en) | Preparation method of galvanized carbon fibers | |
| CN111926329A (en) | Preparation method of laser modified organic-inorganic composite protective coating on surface of titanium alloy | |
| CN111154386A (en) | Brushing LED transparent primer, preparation method and application | |
| CN109135548A (en) | Vacuum plating UV priming paint and preparation method thereof | |
| CN114318858B (en) | Preparation method of silicon dioxide/ultrahigh molecular weight polyethylene laid fabric | |
| CN109456663A (en) | Surface treating agent for electronic product and treating method | |
| CN116970204B (en) | TPU high-low temperature film with optical color effect and preparation method thereof | |
| CN109433563B (en) | Processing method of shell smooth and matte homobody film layer and film layer structure | |
| CN106833065A (en) | A kind of fan blade corrosion-resistant abrasion coating | |
| CN107237136A (en) | A kind of coating material and coating production applied to pbo fiber surface | |
| CN114895386A (en) | Anti-glare film, manufacturing method and mold manufacturing method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220729 |
|
| RJ01 | Rejection of invention patent application after publication |