CN106048564A - ABS plastic surface palladium-free activation metallization method - Google Patents
ABS plastic surface palladium-free activation metallization method Download PDFInfo
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- CN106048564A CN106048564A CN201610602116.1A CN201610602116A CN106048564A CN 106048564 A CN106048564 A CN 106048564A CN 201610602116 A CN201610602116 A CN 201610602116A CN 106048564 A CN106048564 A CN 106048564A
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/18—Pretreatment of the material to be coated
- C23C18/20—Pretreatment of the material to be coated of organic surfaces, e.g. resins
- C23C18/22—Roughening, e.g. by etching
- C23C18/24—Roughening, e.g. by etching using acid aqueous solutions
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/18—Pretreatment of the material to be coated
- C23C18/20—Pretreatment of the material to be coated of organic surfaces, e.g. resins
- C23C18/28—Sensitising or activating
- C23C18/285—Sensitising or activating with tin based compound or composition
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/31—Coating with metals
- C23C18/42—Coating with noble metals
- C23C18/44—Coating with noble metals using reducing agents
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/54—Electroplating of non-metallic surfaces
- C25D5/56—Electroplating of non-metallic surfaces of plastics
Abstract
The invention belongs to the technical field of material surface engineering, and discloses an ABS plastic surface palladium-free activation metallization method. The method comprises the steps of: (A) ABS plastic cleaning and deoiling treatment; (2) ABS roughening treatment; (3) ABS plastic sensitization treatment; (4) ABS plastic chemical silver plating; and (5) metal layer electroplating. The metallization process adopts a chemical silver plating method to replace a traditional palladium activation process, so that the process cost is reduced; and the binding force of a prepared metal coating layer and a basal body is tight. The method is easy to realize the treatment process, low in production cost and suitable for industrial large-scale production.
Description
Technical field
The invention belongs to material surface engineering technolog field, be specifically related to a kind of gold at ABS plastic surface no-palladium activating
Genusization method.
Background technology
At present, during plastics are applied to Aero-Space, automobile, communication apparatus and daily living article more and more widely.?
Frosting prepare metal coating can not only obtain metallic luster with improve decoration performance, make up polymer at forming process
The defects such as the bubble of generation, piebaldism, moreover it is possible to improve the surface property of plastic part, such as corrosion resistance, wearability, thermostability etc..This
The water suction of plastics, hygroscopicity can also be improved outward, improve its mechanical property.
ABS plastic is acrylonitrile～butadiene～the abbreviation of styrol copolymer, has good toughness, corrosion resistance, change
Learn the advantages such as stability, electrical insulating property and relatively low price, be widely used in material engineering.But ABS is non-conductive,
Directly cannot metallize on its surface.Typically need first to carry out chemical plating by reducing agent.There is catalytic active substance
Under catalytic action, form the metal active particle possessing self-catalysis ability on its surface, induce further electroless deposition one
Determine the coating of thickness.Conventional activation is palladium colloid to be incorporated into ABS plastic surface, with catalytic deposition metal in plating process
Coating.Owing to the salt of palladium is expensive, virtually improve the cost of chemical plating process, there is also and stablize not good enough problem.
The film property of the patent utilization biopolymer (chitosan or derivatives thereof) of Publication No. CN101067206 itself
With the chelating adsorption of nickel, there is in matrix surface preparation the active center (Ni of autocatalysis0), induce follow-up change
Learn nickel plating and constantly deposit metal nickel dam.The method uses active nickel to instead of precious metal palladium, at ABS plastic surface successful deposition gold
Belonging to layer, but the effect of chitosan or derivatives thereof is inconspicuous, the active centre formed is unstable, and wayward, it activates effect
Fruit is still needed further research evaluation.The patent of Publication No. CN102644065A discloses one and utilizes hydrogen peroxide and concentrated sulphuric acid
Solution carries out the plastics metalizing method being roughened, and its activating process is to insert plastics in metal nano gold particle solution to soak,
Further electroless copper.The method is by traditional roughening～SnCl2Sensitization～PdCl2Activation three-step approach simplicity is roughening～gold
Particle activation two step.But gold particle used by the method activating process is relatively costly, it is unfavorable for being generalized in commercial Application.
In sum, for the defect of prior art, it is accordingly required in particular to a kind of surface of plastic products metallization process, to solve
The deficiencies in the prior art.
Summary of the invention
It is an object of the invention to provide a kind of method for metallising at ABS plastic surface no-palladium activating, the method processes
Process is easily achieved, and production cost is low, is suitable to industrial-scale production.
The purpose of the present invention is achieved through the following technical solutions:
A kind of method for metallising at ABS plastic surface no-palladium activating, comprises the following steps:
(1) ABS plastic cleans oil removal treatment
(2) ABS plastic roughening treatment
ABS plastic through oil removal treatment in step (1) is inserted in coarsening solution and soaks, rinse dry up stand-by；Described roughening
Liquid by potassium dichromate and sulphuric acid in water formulated；
(3) ABS plastic sensitized treatment
The ABS plastic of roughened process in step (2) being inserted in sensitizing solution and soak, flushing dries up stand-by；Described sensitization
Liquid by stannous chloride and hydrochloric acid in water formulated；
(4) ABS plastic chemical silvering
Ag-containing solution and reducing solution are mixed, is then rapidly added the ABS plastic through sensitized treatment in step (3), leaching
Bubble, takes out；Described Ag-containing solution by silver nitrate and ammonia in water formulated, wherein the concentration of silver nitrate is 10～50g/L,
The concentration of ammonia is 10～75ml/L, and described reducing solution is containing aldehyde compound solution, and concentration is 5～25g/L；
(5) ABS plastic electroplated metal layer
The ABS plastic of silver-plated process in step (4) is placed in metalline solution and electroplates.
The time soaked described in step (2) is 20～60 minutes, and soaking temperature is 50～100 DEG C；Described flushing refers to
Employing dehydrated alcohol rinses.
The time 2～20 minutes soaked described in step (3), soaking temperature is 10～40 DEG C；Described flushing refers to use
Dehydrated alcohol rinses.
Described in step (4), reducing solution is glucose solution, glyoxal solution or formalin；The time of described immersion
2～10 minutes.
Described in step (2), in coarsening solution, the concentration of potassium dichromate is 10～20g/L, the concentration of sulphuric acid be 20～
70wt%.
The concentration of each composition in sensitizing solution described in step (3): the concentration of stannous chloride is 5～40g/L, hydrochloric acid
(37wt.%) 10～100ml/L.
Described in step (4), Ag-containing solution pH is 7.5～12.
ABS plastic described in step (1) cleans concretely comprising the following steps of oil removal treatment: ABS plastic immersed in dehydrated alcohol,
Ultrasonic waves for cleaning 5～10 minutes, rinse with dehydrated alcohol after taking-up and dry up, then immerse ultrasonic waves for cleaning 5～10 in dehydrated alcohol
Minute, rinse with dehydrated alcohol after taking-up and dry up；ABS plastic is immersed in degreasing fluid process 20～60 minutes, temperature be 50～
100 DEG C, dry up stand-by with dehydrated alcohol flushing after taking-up；Described degreasing fluid is sodium hydroxide and sodium carbonate mixed aqueous solution, its
The concentration of middle sodium hydroxide is 10～100g/L, the concentration 5～25g/L of sodium carbonate.
Described in step (5), metal salt solution is copper-containing solution；Described plating conditions be electric current density be 1～3A/dm2,
Reaction temperature is 25 DEG C, and electroplating time is 1～3 hour；Described copper solution is that 50～100g/L copper sulfate, 50～200ml/L are dense
Sulphuric acid (98wt%) and 20～80mg/L hydrochloric acid (37wt%).
In the above-mentioned methods, it is preferred that described degreasing fluid, coarsening solution, sensitizing solution, Ag-containing solution, reducing solution and copper plating bath
All with distilled water as solvent.
The present invention has such advantages as relative to prior art and effect:
(1) a kind of method for metallising processing procedure at ABS plastic surface no-palladium activating of the present invention is easily achieved, and produces
Low cost, is suitable to industrial-scale production；
(2) metallization processes of the present invention uses chemical silver plating method to substitute traditional palladium activating process, reduces technique
Cost；
(3) metal coating prepared by the present invention is tight with basal body binding force, and the Metallization effects of the present invention is good.
Accompanying drawing explanation
Fig. 1 is the X ray diffracting spectrum of the silver layer of embodiment 1 preparation；
Fig. 2 is that embodiment 3 is prepared layers of copper electrode potential and changed over curve；
Fig. 3 is silver layer and the layers of copper cross section electron microscope picture of embodiment 3 preparation.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention do not limit
In this.For the technological parameter indicated the most especially, can refer to routine techniques and carry out.
Embodiment 1
A kind of method for metallising at ABS plastic surface no-palladium activating, concrete operation step is as follows:
Step one: ABS plastic oil removal treatment
ABS plastic is immersed dehydrated alcohol, ultrasonic waves for cleaning 5 minutes, rinses with dehydrated alcohol after taking-up and dry up, then immerse
Ultrasonic waves for cleaning 5 minutes in dehydrated alcohol, rinse with dehydrated alcohol after taking-up and dry up；ABS plastic is immersed in degreasing fluid and process
60 minutes, temperature was 50 DEG C, dried up stand-by with dehydrated alcohol flushing after taking-up, and degreasing fluid is 10g/L sodium hydroxide and 5g/L carbon
Acid sodium mixing water liquid；
Step 2: ABS plastic roughening treatment
The ABS plastic obtained in step one being inserted in coarsening solution and soak 20 minutes, temperature is 60 DEG C；With anhydrous after taking-up
Alcohol flushing dries up stand-by；Coarsening solution is the sulfuric acid mixture liquid of 10g/L potassium dichromate and 20wt%；
Step 3: ABS plastic sensitized treatment
The ABS plastic obtained in step 2 being inserted in sensitizing solution and soak 20 minutes, temperature is 10 DEG C；With distillation after taking-up
Water rinses, and improves its sensitization effect, then dries up stand-by with dehydrated alcohol flushing；The formula of sensitizing solution is: 5g/L stannous chloride and
10ml/L hydrochloric acid (37wt.%)；
Step 4: ABS plastic chemical silvering
Prepared Ag-containing solution and reducing solution are mixed at ambient temperature, the ABS that will obtain in step 3 rapidly
Plastics are dipped in this mixed solution 2 minutes and take out, and obtain silver layer compact with matrix；Described Ag-containing solution be:
10g/L silver nitrate and 15ml/L ammonia, described reducing solution is glucose solution, and concentration is 5g/L.
Prepared ABS silver coating carries out following detection characterize:
(1) component analysis: use X-ray diffractometer (XRD) that sample surfaces is carried out elemental analysis, XRD figure such as Fig. 1
Shown in, silver layer prepared as can be seen from Figure 1 is face-centred cubic structure, and free from admixture phase.
(2) deposition: by electronic balance weighing weight difference before and after silver-plated, can show that its surface deposition is 112 μ g/
cm2。
Embodiment 2
A kind of method for metallising at ABS plastic surface no-palladium activating, specifically comprises the following steps that
Step one: ABS plastic oil removal treatment
ABS plastic is immersed ethanol solution, ultrasonic waves for cleaning 5 minutes, rinses with dehydrated alcohol after taking-up and dry up, then
Immerse ultrasonic waves for cleaning 5 minutes in dehydrated alcohol, rinse with dehydrated alcohol after taking-up and dry up.ABS plastic is immersed in degreasing fluid
Processing 40 minutes, temperature is 60 DEG C, dries up stand-by with dehydrated alcohol flushing after taking-up；Degreasing fluid be 80g/L sodium hydroxide and
15g/L sodium carbonate mixed liquor；
Step 2: ABS plastic roughening treatment
The ABS plastic obtained in step one being inserted in coarsening solution and soak 40 minutes, temperature is 60 DEG C；With anhydrous after taking-up
Alcohol flushing dries up stand-by；Coarsening solution is the sulfuric acid mixture liquid of 16g/L potassium dichromate and 50wt.%；
Step 3: ABS plastic sensitized treatment
The ABS plastic obtained in step 2 being inserted in sensitizing solution and soak 15 minutes, temperature is 25 DEG C, with using nothing after taking-up
Water-ethanol flushing dries up stand-by；Sensitizing solution is made up of 5g/L stannous chloride and 50ml/L hydrochloric acid (37wt.%)；
Step 4: ABS plastic chemical silvering
Prepared Ag-containing solution and reducing solution are mixed at ambient temperature, the ABS that will obtain in step 3 rapidly
Plastics are dipped in this mixed solution 5 minutes and take out, and obtain silver layer compact with matrix；Ag-containing solution is 20g/L nitric acid
Silver and 30ml/L ammonia；Reducing solution is glucose solution, and concentration is 25g/L.
Prepared ABS silver coating carries out following detection characterize:
(1) component analysis: use X-ray diffractometer sample surfaces to be carried out elemental analysis, prepared by embodiment 1
The similar material composition of sample surfaces.
(2) deposition: by electronic balance weighing weight difference before and after silver-plated, can show that its surface deposition is 69 μ g/
cm2.It follows that the increase of glucose amount can not make its plating speed accelerate.
Embodiment 3
A kind of method for metallising at ABS plastic surface no-palladium activating, specifically comprises the following steps that
Step one: ABS plastic oil removal treatment
ABS plastic is immersed ethanol solution, ultrasonic waves for cleaning 10 minutes, rinses with dehydrated alcohol after taking-up and dry up,
Immerse ultrasonic waves for cleaning 10 minutes in dehydrated alcohol again, rinse with dehydrated alcohol after taking-up and dry up；ABS plastic is immersed degreasing fluid
Middle process 60 minutes, temperature is 50 DEG C, dries up stand-by with dehydrated alcohol flushing after taking-up；Degreasing fluid be 100g/L sodium hydroxide and
25g/L sodium carbonate mixed liquor；
Step 2: ABS plastic oil removal treatment
The ABS plastic obtained in step one being inserted in coarsening solution and soak 60 minutes, temperature is 50 DEG C；With anhydrous after taking-up
Alcohol flushing dries up stand-by；Coarsening solution is the sulfuric acid mixture liquid of 20g/L potassium dichromate and 70wt.%；
Step 3: ABS plastic sensitized treatment
The ABS plastic obtained in step 2 being inserted in sensitizing solution and soak 2 minutes, temperature is 40 DEG C, with using nothing after taking-up
Water-ethanol flushing dries up stand-by；Sensitizing solution is made up of 40g/L stannous chloride and 100ml/L hydrochloric acid (37wt.%)；
Step 4: ABS plastic chemical silvering
Prepared Ag-containing solution and reducing solution are mixed at ambient temperature, the ABS that will obtain in step 3 rapidly
Plastics are dipped in this mixed solution 5 minutes and take out, and obtain silver layer compact with matrix；Ag-containing solution is 50g/L nitric acid
Silver and 75ml/L ammonia；Reducing solution is glucose solution, and concentration is 5g/L；
Step 5: ABS plastic electro-coppering
The ABS plastic obtained in step 4 is placed in copper-containing solution and electroplates, deposition and the compact plating of matrix
Layers of copper, electric current density is 1A/dm2, reaction temperature is 25 DEG C, and electroplating time is 2 hours, copper-containing solution be 80g/L copper sulfate,
100ml/L concentrated sulphuric acid (98wt.%) and 70mg/L hydrochloric acid (37wt.%).
Prepared ABS silver coating and layers of copper carry out following detection characterize:
(1) electroplating process analysis: in silver surface electro-coppering, uses electrochemical workstation to study under constant current conditions, ABS silver
The time dependent curve of electrode potential of layer copper coating is as shown in Figure 2.At 1A/dm2Under, the current potential of silver layer reaches 1.94V,
This is owing to generating one layer of silver oxide layer the thinnest at silver surface, reducing the conductive capability of silver layer.Carry out along with copper-plated,
When electrode potential is 1.54V, silver layer surface has formed the layers of copper of thin layer, provides conductive layer for plating, thus electrode is electric
Position rapid decrease.Along with the thickening of layers of copper, its electrode potential declines further, finally stable at 0.5V.
(2) thickness of coating: by sem observation thickness of coating, as shown in Figure 3, it is possible to find silver-plated/copper two
Layer thickness is 21 μm.
Above-described embodiment is the present invention preferably embodiment, but embodiments of the present invention are not by above-described embodiment
Limit, the change made under other any spirit without departing from the present invention and principle, modify, substitute, combine, simplify,
All should be the substitute mode of equivalence, within being included in protection scope of the present invention.
Claims (9)
1. the method for metallising at ABS plastic surface no-palladium activating, it is characterised in that: comprise the following steps:
(1) ABS plastic cleans oil removal treatment
(2) ABS plastic roughening treatment
ABS plastic through oil removal treatment in step (1) is inserted in coarsening solution and soaks, rinse dry up stand-by；Described coarsening solution by
Potassium dichromate and sulphuric acid are formulated in water；
(3) ABS plastic sensitized treatment
The ABS plastic of roughened process in step (2) being inserted in sensitizing solution and soak, flushing dries up stand-by；Described sensitizing solution by
Stannous chloride and hydrochloric acid are formulated in water；
(4) ABS plastic chemical silvering
Ag-containing solution and reducing solution are mixed, is then rapidly added the ABS plastic through sensitized treatment in step (3), soak, take
Go out；Described Ag-containing solution by silver nitrate and ammonia in water formulated, wherein the concentration of silver nitrate is 10～50g/L, ammonia
Concentration be 10～75ml/L, described reducing solution is containing aldehyde compound solution, and concentration is 5～25g/L；
(5) ABS plastic electroplated metal layer
The ABS plastic of silver-plated process in step (4) is placed in metalline solution and electroplates.
The most according to claim 1 at the method for metallising of ABS plastic surface no-palladium activating, it is characterised in that: described reduction
Solution is glucose solution, glyoxal solution or formalin.
The most according to claim 1 at the method for metallising of ABS plastic surface no-palladium activating, it is characterised in that: described roughening
In liquid, the concentration of potassium dichromate is 10～20g/L, and the concentration of sulphuric acid is 20～70wt%.
The most according to claim 1 at the method for metallising of ABS plastic surface no-palladium activating, it is characterised in that: described sensitization
Hydrochloric acid described in liquid is the hydrochloric acid of 37wt%, the concentration of each composition in described sensitizing solution: the concentration of stannous chloride is 5～40g/L,
The concentration of the hydrochloric acid of 37wt% is 10～100ml/L.
The most according to claim 1 at the method for metallising of ABS plastic surface no-palladium activating, it is characterised in that: in step (2)
The time of described immersion is 20～60 minutes, and soaking temperature is 50～100 DEG C；Described flushing refers to use dehydrated alcohol to rinse；
The time 2 of step (3) described immersion～20 minutes, soaking temperature is 10～40 DEG C；Described flushing refers to use anhydrous second
Alcohol rinses；
The time 2 of step (4) described immersion～10 minutes.
The most according to claim 1 at the method for metallising of ABS plastic surface no-palladium activating, it is characterised in that: in step (5)
Described metal salt solution is copper-containing solution；Described plating conditions be electric current density be 1～3A/dm2, reaction temperature is 25 DEG C, electricity
The plating time is 1～3 hour.
The most according to claim 6 at the method for metallising of ABS plastic surface no-palladium activating, it is characterised in that: described copper is molten
Liquid is 50～100g/L copper sulfate, 50～200ml/L 98wt% concentrated sulphuric acid and 20～80mg/L37wt% hydrochloric acid.
The most according to claim 1 at the method for metallising of ABS plastic surface no-palladium activating, it is characterised in that: in step (1)
Described ABS plastic oil removal treatment concretely comprises the following steps:
ABS plastic is immersed in dehydrated alcohol, ultrasonic waves for cleaning 5～10 minutes, rinse with dehydrated alcohol after taking-up and dry up, then soak
Enter in dehydrated alcohol ultrasonic waves for cleaning 5～10 minutes, rinse with dehydrated alcohol after taking-up and dry up；ABS plastic is immersed degreasing fluid
Middle process 20～60 minutes, temperature is 50～100 DEG C, rinse with dehydrated alcohol after taking-up dry up stand-by；Described degreasing fluid is hydrogen
Sodium oxide and sodium carbonate mixed aqueous solution.
The most according to claim 8 at the method for metallising of ABS plastic surface no-palladium activating, it is characterised in that: described oil removing
In liquid the concentration of each composition be the concentration of sodium hydroxide be 10～100g/L, the concentration 5～25g/L of sodium carbonate.
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| CN107287633A (en) * | 2017-06-21 | 2017-10-24 | 太仓市金鹿电镀有限公司 | A kind of surface no-palladium activating electroplating technology |
| CN107313048A (en) * | 2017-05-08 | 2017-11-03 | 广东伊莱特电器有限公司 | A kind of electroplating technology of IH ceramic cookers |
| CN109972124A (en) * | 2019-04-22 | 2019-07-05 | 华南理工大学 | A method of copper-graphite alkene composite deposite is prepared on ABS plastic surface |
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