CN114031989A - Water-based electro-silvering material for hub and preparation method thereof - Google Patents
Water-based electro-silvering material for hub and preparation method thereof Download PDFInfo
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- CN114031989A CN114031989A CN202111443153.XA CN202111443153A CN114031989A CN 114031989 A CN114031989 A CN 114031989A CN 202111443153 A CN202111443153 A CN 202111443153A CN 114031989 A CN114031989 A CN 114031989A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 81
- 239000000463 material Substances 0.000 title claims abstract description 25
- 238000002360 preparation method Methods 0.000 title abstract description 8
- 229920005989 resin Polymers 0.000 claims abstract description 42
- 239000011347 resin Substances 0.000 claims abstract description 42
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 40
- 229910052709 silver Inorganic materials 0.000 claims abstract description 40
- 239000004332 silver Substances 0.000 claims abstract description 40
- 238000009713 electroplating Methods 0.000 claims abstract description 37
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000000839 emulsion Substances 0.000 claims abstract description 31
- 229920003180 amino resin Polymers 0.000 claims abstract description 30
- 239000000080 wetting agent Substances 0.000 claims abstract description 20
- 239000000853 adhesive Substances 0.000 claims abstract description 14
- 230000001070 adhesive effect Effects 0.000 claims abstract description 14
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 10
- 238000003756 stirring Methods 0.000 claims description 42
- 239000006184 cosolvent Substances 0.000 claims description 17
- 239000003795 chemical substances by application Substances 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 10
- 239000011259 mixed solution Substances 0.000 claims description 9
- 239000000243 solution Substances 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 238000007747 plating Methods 0.000 claims description 4
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical group CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 claims description 2
- 239000004593 Epoxy Substances 0.000 claims description 2
- UEEJHVSXFDXPFK-UHFFFAOYSA-N N-dimethylaminoethanol Chemical group CN(C)CCO UEEJHVSXFDXPFK-UHFFFAOYSA-N 0.000 claims description 2
- 229910019142 PO4 Inorganic materials 0.000 claims description 2
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 2
- 229960002887 deanol Drugs 0.000 claims description 2
- 239000012972 dimethylethanolamine Substances 0.000 claims description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 2
- 239000010452 phosphate Substances 0.000 claims description 2
- 229920000570 polyether Polymers 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims 2
- 239000000203 mixture Substances 0.000 claims 2
- 238000004519 manufacturing process Methods 0.000 claims 1
- 239000011248 coating agent Substances 0.000 abstract description 13
- 238000000576 coating method Methods 0.000 abstract description 13
- 239000000126 substance Substances 0.000 abstract description 11
- 239000012752 auxiliary agent Substances 0.000 abstract description 9
- 238000004132 cross linking Methods 0.000 abstract description 8
- 150000003839 salts Chemical class 0.000 abstract description 8
- 239000002904 solvent Substances 0.000 abstract description 8
- 239000007921 spray Substances 0.000 abstract description 6
- 239000000758 substrate Substances 0.000 abstract description 4
- 230000002195 synergetic effect Effects 0.000 abstract description 4
- 239000003973 paint Substances 0.000 description 21
- 239000008367 deionised water Substances 0.000 description 8
- 229910021641 deionized water Inorganic materials 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 239000000843 powder Substances 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 4
- 239000011229 interlayer Substances 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
- 238000003754 machining Methods 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 108700024661 strong silver Proteins 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- 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
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
-
- 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
- C09D7/65—Additives macromolecular
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0806—Silver
Abstract
The invention belongs to the technical field of water-based electrosilvering materials, and particularly relates to a water-based electrosilvering material for a hub and a preparation method thereof. The water-based electro-silvering material for the hub comprises the following components in parts by mass: 35-40 parts of water-based acrylic emulsion resin; 0.2-0.5 part of water-based amino resin; 1-2 parts of an aqueous adhesive; 0.5-0.8 part of aqueous neutralizer; 2-10 parts of a solvent; 0.2-0.3 part of wetting agent; 2-3 parts of water-based electroplating silver paste. The invention adds proper water-based chemical resistance auxiliary agent and proper water-based amino resin to form better synergistic effect with the water-based acrylic emulsion resin, obviously improves the water resistance, salt spray resistance and solvent resistance of the coating by adding the water-based chemical resistance auxiliary agent, and the product contains a large amount of substrate reaction groups and can easily perform crosslinking reaction with the hydroxyl of the water-based acrylic emulsion resin in the system.
Description
Technical Field
The invention belongs to the technical field of water-based electrosilvering materials, and particularly relates to a water-based electrosilvering material for a hub and a preparation method thereof.
Background
With the vigorous development of economy, people's demand for automobiles is also rapidly increased, and the automobile is one of the most convenient vehicles, so that the market development potential is huge. At present, the national environmental protection agency has strict and harsh requirements on the construction of coating spraying enterprises, strictly controls VOC emission, and also has a trend of changing from solvent-based baking paint to water-based baking paint in the coating of automobile hubs.
For the water-based electrosilvering applied to the wheel hub at present, more processes are adopted as a three-coating two-baking process flow, namely a special water-based black matrix is matched, a water-based electrosilvering coating is sprayed after the water-based black matrix is leveled at room temperature, and a powder gloss oil coating is sprayed after the water-based electrosilvering coating is dried. The following problems exist during the application process: after the water-based black matrix is leveled at room temperature, the appearance conditions of undercut, poor texture of electroplated metal, cracking, blooming, uneven paint film and the like are easy to appear when the water-based silver plating is sprayed, and the physical and chemical properties, the adhesion force with powder gloss oil recoating, the machinability and the water and salt fog resistance are poor.
Disclosure of Invention
The invention provides a water-based electrosilvering material for a wheel hub and a preparation method thereof, which are used for solving the technical problems that after a water-based black matrix is leveled at room temperature, water-based electrosilvering is sprayed, the appearance conditions such as undercut, poor texture of electroplated metal, cracking, blooming, uneven paint film and the like are easy to occur, the physical and chemical properties are poor in adhesion with powder gloss oil recoating, poor machinability, poor water resistance and salt spray resistance and the like.
In order to solve the technical problems, the invention provides a water-based silver electroplating material for a hub, which comprises the following components in parts by mass: 35-40 parts of water-based acrylic emulsion resin; 0.2-0.5 part of water-based amino resin; 1-2 parts of an aqueous adhesive; 0.5-0.8 part of aqueous neutralizer; 2-10 parts of a solvent; 0.2-0.3 part of wetting agent; 2-3 parts of water-based electroplating silver paste.
In another aspect, the invention also provides a preparation method of the water-based silver electroplating material for the wheel hub, which comprises the following steps: mixing and stirring the aqueous acrylic emulsion resin, the aqueous amino resin and the aqueous neutralizer to obtain a resin mixed solution; adding an aqueous adhesive, a cosolvent and a wetting agent into the resin mixed solution, and stirring and mixing to prepare a premixed solution; and adding aqueous electroplating silver paste into the premixed solution, and stirring and mixing to obtain the aqueous electroplating silver material for the wheel hub.
The invention has the beneficial effects that the proper water-based chemical resistance auxiliary agent and the proper water-based amino resin are added to form a better synergistic effect with the water-based acrylic emulsion resin, the water resistance, the salt spray resistance and the solvent resistance of the coating are obviously improved by adding the water-based chemical resistance auxiliary agent, and the product contains a large number of substrate reaction groups and can easily perform a crosslinking reaction with the hydroxyl of the water-based acrylic emulsion resin in a system. The addition of a small amount of the water-based amino resin does not influence the self electroplating metal texture of the water-based electroplated silver, and can perform a crosslinking reaction with the hydroxyl of the water-based acrylic emulsion resin, thereby improving the interlayer adhesion with the transparent powder coating and the problem that the machining process is easy to paint.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
In order to make the aforementioned and other objects, features and advantages of the invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below, and it is apparent that the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a water-based electrosilvering material for a hub, which comprises the following components in parts by mass: 35-40 parts of water-based acrylic emulsion resin; 0.2-0.5 part of water-based amino resin; 1-2 parts of an aqueous adhesive; 0.5-0.8 part of aqueous neutralizer; 2-10 parts of a solvent; 0.2-0.3 part of wetting agent; 2-3 parts of water-based electroplating silver paste.
The invention adds proper water-based chemical resistance auxiliary agent and proper water-based amino resin to form better synergistic effect with the water-based acrylic emulsion resin, obviously improves the water resistance, salt spray resistance and solvent resistance of the coating by adding the water-based chemical resistance auxiliary agent, and the product contains a large amount of substrate reaction groups and can easily perform crosslinking reaction with the hydroxyl of the water-based acrylic emulsion resin in the system. The addition of a small amount of the water-based amino resin does not influence the self electroplating metal texture of the water-based electroplated silver, and can perform a crosslinking reaction with the hydroxyl of the water-based acrylic emulsion resin, thereby improving the interlayer adhesion with the transparent powder coating and the problem that the machining process is easy to paint.
Wherein, optionally, the solid content of the water-based acrylic emulsion resin is 11-13%, the pH value is 6.5-7.5, and the hydroxyl value is 0.4.
The water-based acrylic emulsion resin is a special polymer modification, is different from general resin, cannot achieve the effect of electroplating a mirror surface, has strong silver row and electroplating mirror surface effects, has excellent mechanical properties, water solubility, stability and adhesion of matched transparent powder, contains a certain hydroxyl content, can achieve a crosslinking reaction with reactive groups in water-based amino resin and a water-based chemical resistance auxiliary agent, and enhances the comprehensive performance of a paint film.
Optionally, the aqueous amino resin is a medium-activity tetramethyletherified amino resin.
Optionally, the aqueous neutralizing agent is dimethylethanolamine.
Optionally, the cosolvent is ethylene glycol butyl ether.
Optionally, the aqueous adhesive is epoxy phosphate, and the addition of the aqueous adhesive is particularly important, so that the adhesive plays a great role in interlayer adhesion and salt spray resistance.
Optionally, the wetting agent is a polyether modified organic silicon assistant.
Further, the invention also provides a preparation method of the water-based silver electroplating material for the wheel hub, which comprises the following steps: mixing and stirring the aqueous acrylic emulsion resin, the aqueous amino resin and the aqueous neutralizer to obtain a resin mixed solution; adding an aqueous adhesive, a cosolvent and a wetting agent into the resin mixed solution, and stirring and mixing to prepare a premixed solution; and adding aqueous electroplating silver paste into the premixed solution, and stirring and mixing to obtain the aqueous electroplating silver material for the wheel hub.
Optionally, the stirring speed for preparing the resin mixed solution is 600-800 r/min, and the stirring time is 20-30 min.
Optionally, the stirring speed for preparing the resin mixed solution is 800-1000 r/min, and the stirring time is 10-20 min.
Optionally, the stirring speed of adding the aqueous electroplating silver paste into the pre-mixed solution for stirring and mixing is 800-1000 r/min, and the stirring time is 10-20 min.
Example 1
Stirring 35 parts of aqueous acrylic emulsion resin, 0.2 part of aqueous amino resin and 0.5 part of aqueous neutralizer for 25min at the rotating speed of 700 r/min; and then adding 1 part of aqueous adhesion agent, 5 parts of cosolvent, 0.2 part of wetting agent and deionized water, stirring and dispersing for 10min at the rotating speed of 800r/min, and then adding 2 parts of aqueous electroplating silver paste, and stirring for 15min at the rotating speed of 900 r/min.
Example 2
Stirring 35 parts of aqueous acrylic emulsion resin, 0.3 part of aqueous amino resin and 0.5 part of aqueous neutralizer for 22min at the rotating speed of 600 r/min; and then adding 1.5 parts of aqueous adhesion agent, 5 parts of cosolvent, 0.2 part of wetting agent and deionized water, stirring and dispersing for 12min at the rotating speed of 850r/min, and then adding 2.5 parts of aqueous electroplating silver paste, and stirring for 14min at the rotating speed of 950 r/min.
Example 3
Stirring 35 parts of aqueous acrylic emulsion resin, 0.3 part of aqueous amino resin and 0.7 part of aqueous neutralizer for 20min at the rotating speed of 800 r/min; then adding 1.5 parts of aqueous adhesion agent, 2 parts of cosolvent, 0.2 part of wetting agent and deionized water, stirring and dispersing for 12min under the condition of 900r/min of rotating speed, and then adding 2.5 parts of aqueous electroplating silver paste, stirring for 16min under the condition of 800r/min of rotating speed.
Example 4
Stirring 38 parts of aqueous acrylic emulsion resin, 0.5 part of aqueous amino resin and 0.5 part of aqueous neutralizer for 23min at the rotating speed of 650 r/min; and then adding 2 parts of aqueous adhesion agent, 8 parts of cosolvent, 0.2 part of wetting agent and deionized water, stirring and dispersing for 17min at the rotating speed of 1000r/min, and then adding 2.5 parts of aqueous electroplating silver paste, and stirring for 13min at the rotating speed of 950 r/min.
Example 5
Stirring 38 parts of aqueous acrylic emulsion resin, 0.5 part of aqueous amino resin and 0.6 part of aqueous neutralizer at the rotating speed of 750r/min for 28 min; and then adding 2 parts of aqueous adhesion agent, 10 parts of cosolvent, 0.2 part of wetting agent and deionized water, stirring and dispersing for 11min at the rotating speed of 950r/min, and then adding 2.5 parts of aqueous electroplating silver paste, and stirring for 18min at the rotating speed of 1000 r/min.
Example 6
Stirring 40 parts of aqueous acrylic emulsion resin, 0.2 part of aqueous amino resin and 0.8 part of aqueous neutralizer for 30min at the rotating speed of 700 r/min; and then adding 1.3 parts of aqueous adhesion agent, 6 parts of cosolvent, 0.3 part of wetting agent and deionized water, stirring and dispersing for 15min at the rotating speed of 800r/min, and then adding 3 parts of aqueous electroplating silver paste, and stirring for 20min at the rotating speed of 900 r/min.
Comparative example 1
Stirring 35 parts of aqueous acrylic emulsion resin, 0.1 part of aqueous amino resin and 0.3 part of aqueous neutralizer for 25min at the rotating speed of 700 r/min; and then 0.5 part of aqueous adhesion agent, 1 part of cosolvent, 0.1 part of wetting agent and deionized water are added, stirred and dispersed for 10min under the condition of the rotating speed of 800r/min, and then 1 part of aqueous electroplating silver paste is added, stirred for 15min under the condition of the rotating speed of 900 r/min.
Comparative example 2
Stirring 35 parts of aqueous acrylic emulsion resin, 0.8 part of aqueous amino resin and 3 parts of aqueous neutralizer for 25min at the rotating speed of 700 r/min; and then adding 5 parts of aqueous adhesion agent, 20 parts of cosolvent, 1.5 parts of wetting agent and deionized water, stirring and dispersing for 10min at the rotating speed of 800r/min, and then adding 5 parts of aqueous electroplating silver paste, and stirring for 15min at the rotating speed of 900 r/min.
Preparation of all samples for testing: the aluminum plate was 10cm x 5cm (thickness: 0.2mm) in size, the surface was degreased and polished, and after the aqueous electrolytic silver plating materials prepared in the above examples and comparative examples were sprayed, performance tests were performed, and the results are summarized in table 1.
TABLE 1 Performance data of aqueous electrosilvered materials prepared in the examples and comparative examples
As can be seen from the data in Table 1, analysis of a small amount of the aqueous acrylic emulsion resin has a great influence on the metallic texture and appearance of the electroplated silver; the poor adhesive force of a paint film can be caused by a small content of the water-based amino resin, the poor salt spray resistance can be also reduced, the metal texture of the paint film can be reduced by a large content of the water-based amino resin, the hardness of the paint film is high, and the paint jumping phenomenon can easily occur; the content of the neutralizer is low, so that the compatibility of the paint is poor, the storage property is reduced, the viscosity of the paint is increased due to the high content of the neutralizer, and the later construction is influenced; the content of the aqueous adhesive is too much, which can affect the hardness of a paint film and the metal texture; the content of the cosolvent is too high, so that the VOC of the paint is too high to meet the environmental protection requirement, and the content of the cosolvent is too low, so that the coloring rate and the wettability of the paint film are greatly influenced; the content of the wetting agent is too large, so that the repair coverage of a paint film is poor, and the content of the wetting agent is too small, so that the wettability of the paint is poor and the problem of shrinkage cavity is caused; the content of the aqueous electroplating silver paste is too much, so that the appearance color of a paint film is whitish, and the metal texture is reduced; the content of the aqueous electroplating silver paste is low, so that the appearance of a paint film is blackened, and the appearance effect is influenced. 35-38 parts of waterborne acrylic emulsion resin, 0.3-0.5 part of waterborne amino resin, 0.3-0.5 part of waterborne neutralizer, 1.5-2 parts of waterborne adhesive, 2-10 parts of cosolvent, 0.2-0.3 part of wetting agent, and 2.5 parts of waterborne electroplating silver paste, wherein the comprehensive effect of the waterborne electroplating silver is in the best scheme.
In conclusion, the invention forms better synergistic effect with the waterborne acrylic emulsion resin by adding a proper waterborne chemical resistance auxiliary agent and a proper waterborne amino resin, obviously improves the water resistance, the salt fog resistance and the solvent resistance of the coating by adding the waterborne chemical resistance auxiliary agent, and the product contains a large amount of substrate reaction groups and can easily carry out crosslinking reaction with the hydroxyl of the waterborne acrylic emulsion resin in the system. The addition of a small amount of the water-based amino resin does not influence the self electroplating metal texture of the water-based electroplated silver, and can perform a crosslinking reaction with the hydroxyl of the water-based acrylic emulsion resin, thereby improving the interlayer adhesion with the transparent powder coating and the problem that the machining process is easy to paint.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. An aqueous silver plating material for a hub, characterized in that,
the adhesive comprises the following components in parts by mass:
35-40 parts of water-based acrylic emulsion resin;
0.2-0.5 part of water-based amino resin;
1-2 parts of an aqueous adhesive;
0.5-0.8 part of aqueous neutralizer;
2-10 parts of a cosolvent;
0.2-0.3 part of wetting agent;
2-3 parts of water-based electroplating silver paste.
2. The aqueous silver electroplating material according to claim 1,
the solid content of the water-based acrylic emulsion resin is 11-13%, the pH value is 6.5-7.5, and the hydroxyl value is 0.4.
3. The aqueous silver electroplating material according to claim 1,
the water-based amino resin is a medium-activity tetramethyletherified amino resin.
4. The aqueous silver electroplating material according to claim 1,
the aqueous neutralizer is dimethylethanolamine.
5. The aqueous silver electroplating material according to claim 1,
the cosolvent is ethylene glycol butyl ether.
6. The aqueous silver electroplating material according to claim 1,
the aqueous adhesion agent is epoxy phosphate.
7. The aqueous silver electroplating material according to claim 1,
the wetting agent is a polyether modified organic silicon assistant.
8. A method for producing an aqueous electrolytic silver plating material for a wheel hub according to claim 1,
the method comprises the following steps:
mixing and stirring the aqueous acrylic emulsion resin, the aqueous amino resin and the aqueous neutralizer to obtain a resin mixed solution;
adding an aqueous adhesive, a cosolvent and a wetting agent into the resin mixed solution, and stirring and mixing to prepare a premixed solution;
and adding aqueous electroplating silver paste into the premixed solution, and stirring and mixing to obtain the aqueous electroplating silver material for the wheel hub.
9. The method according to claim 8, wherein the step of preparing the composition,
the stirring speed for preparing the resin mixed liquid is 600-800 r/min, and the stirring time is 20-30 min.
10. The method according to claim 8, wherein the step of preparing the composition,
the stirring speed for preparing the resin mixed liquid is 800-1000 r/min, and the stirring time is 10-20 min.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111443153.XA CN114031989A (en) | 2021-11-30 | 2021-11-30 | Water-based electro-silvering material for hub and preparation method thereof |
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| CN202111443153.XA CN114031989A (en) | 2021-11-30 | 2021-11-30 | Water-based electro-silvering material for hub and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114713478A (en) * | 2022-04-24 | 2022-07-08 | 保定市立中车轮制造有限公司 | Water-based coating process for high-brightness silver wheel |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106675271A (en) * | 2017-01-16 | 2017-05-17 | 广东四方威凯新材料有限公司 | Bake type single-layer waterborne flashing paint for aluminum alloy hub and preparation method of waterborne flashing paint |
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2021
- 2021-11-30 CN CN202111443153.XA patent/CN114031989A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106675271A (en) * | 2017-01-16 | 2017-05-17 | 广东四方威凯新材料有限公司 | Bake type single-layer waterborne flashing paint for aluminum alloy hub and preparation method of waterborne flashing paint |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114713478A (en) * | 2022-04-24 | 2022-07-08 | 保定市立中车轮制造有限公司 | Water-based coating process for high-brightness silver wheel |
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