CN113480804B - Plastic surface electroplating manufacturing process - Google Patents
Plastic surface electroplating manufacturing process Download PDFInfo
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- CN113480804B CN113480804B CN202110840123.6A CN202110840123A CN113480804B CN 113480804 B CN113480804 B CN 113480804B CN 202110840123 A CN202110840123 A CN 202110840123A CN 113480804 B CN113480804 B CN 113480804B
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/002—Methods
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
- B29B7/06—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices
- B29B7/10—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary
- B29B7/18—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with more than one shaft
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- 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
- C25D5/10—Electroplating with more than one layer of the same or of different metals
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- 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
- C25D5/34—Pretreatment of metallic surfaces to be electroplated
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- 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
-
- 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
- C08K2201/001—Conductive additives
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- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Metallurgy (AREA)
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- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Electroplating Methods And Accessories (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention belongs to the field of plastic surface electroplating processing, and particularly discloses a plastic surface electroplating manufacturing process, which comprises the following steps: step 1), mixing polypropylene, polybutadiene, sulfur, sulfenamide accelerator, cobalt salt and graphene, and performing injection molding to obtain a plastic product; step 2), electroplating a copper coating on the surface of the plastic product through an electroplating process to obtain a copper-coated plastic product; step 3), heating the copper-plated plastic product to the temperature of 120-; and 4) electroplating a metal coating on the cured copper-coated plastic product through an electroplating process to obtain a metal-coated plastic finished product. The invention has the advantage of enhancing the binding force between the metal coating and the plastic product.
Description
Technical Field
The invention relates to the field of plastic surface electroplating processing, in particular to a plastic surface electroplating manufacturing process.
Background
Electroplating is a process of plating a layer of other metals on the surface of a metal by using the principle of electrolysis.
Plastics are one of the materials commonly used in the day, and because the plastics have light weight, good performance and low price, the plastics are widely used in various fields, but the appearance and the texture of the plastics are greatly different from those of metals, and the requirements on the plastic products are higher and higher along with the gradual improvement of the pursuit of consumers, so that the plastic products with the metal appearance and the metal texture become popular products.
However, the principle of electrolysis firstly requires conductivity, and most plastics are insulators, so when a metal film is electroplated on the surface of the plastics, the plastics firstly need to be modified, and a conductive substance is usually doped as a filler to increase the conductivity of the plastic product, so as to realize the electroplating process.
Although the electroplating is carried out, the plastic is impossible to form a metal bond with the metal, and the bonding force is poor only by the gravitational force between atoms and molecules, so that the bonding force between the metal plating layer and the plastic product is poor, and the plastic product is easy to blister and peel, so that the product quality is unstable, and thus, there is room for improvement.
Disclosure of Invention
In order to enhance the bonding force between the metal coating and the plastic product, the application provides a plastic surface electroplating manufacturing process.
The plastic surface electroplating manufacturing process provided by the application adopts the following technical scheme:
a plastic surface electroplating manufacturing process comprises the following steps:
step 1), mixing polypropylene, polybutadiene, sulfur, sulfenamide accelerator, cobalt salt and graphene, and performing injection molding to obtain a plastic product;
step 2), electroplating a copper coating on the surface of the plastic product through an electroplating process to obtain a copper-coated plastic product;
step 3), heating the copper-plated plastic product to the temperature of 120-;
and 4) electroplating a metal coating on the cured copper-coated plastic product through an electroplating process to obtain a metal-coated plastic finished product.
By adopting the technical scheme, polybutadiene and sulfur are added into polypropylene, and the polypropylene is heated and insulated after being electroplated with a copper coating, so that the sulfur opens double bonds of the polybutadiene and reacts with the polybutadiene and is connected with the polybutadiene, meanwhile, the sulfur reacts with copper to produce cuprous sulfide, the cuprous sulfide generates chemical bonding in a cuprous sulfide-polybutadiene sulfide form with the vulcanized polybutadiene through a sulfur bridge, a polybutadiene molecular chain is intertwined by a polypropylene molecular chain, and thus the copper coating and a plastic product are connected and combined through the cuprous sulfide-polybutadiene sulfide form chemical bonding, the bonding force of the chemical bonding is very high, the bonding force of the copper coating and the plastic product is greatly improved, the copper coating is not easy to bubble and peel off, then other metal coatings are electroplated on the copper coating, and metal bonds can be formed between metals, therefore, the bonding force between the metal plating layer and the copper plating layer is strong and stable, so that the metal plating layer and the plastic product are stably bonded, and the conditions of bubbling, peeling and the like are not easy to generate.
In addition, by adding sulfenamide accelerators and cobalt salt into polypropylene, the early vulcanization speed of polybutadiene can be effectively reduced, and the reaction of sulfur and copper is effectively promoted to generate active cuprous sulfide, so that the chemical bonding effect of the cuprous sulfide-polybutadiene sulfide form is better.
By adding the graphene, the polypropylene can have conductivity so as to realize the copper electroplating process.
Preferably, in the step 1), the mass ratio of the polypropylene, the polybutadiene, the sulfur, the sulfenamide accelerator, the cobalt salt and the graphene is as follows: 100: 4.5-5.5: 0.3-0.4: 0.06-0.08: 0.009-0.011: 3.4-3.6.
Preferably, in the step 1), the mass ratio of the polypropylene, the polybutadiene, the sulfur, the sulfenamide accelerator, the cobalt salt and the graphene is as follows: 100: 5: 0.35: 0.07: 0.01: 3.5.
by adopting the technical scheme, the generation of a large number of cross-linked networks caused by excessive polybutadiene content is avoided by limiting the proportion of the components, sufficient sulfur is ensured to be vulcanized and the reaction for generating cuprous sulfide is ensured, the vulcanization speed is just matched with the speed for generating cuprous sulfide, the chemical bonding in the form of cuprous sulfide-polybutadiene sulfide is generated well, and meanwhile, the polypropylene has better conductive effect, so that the copper electroplating effect is better.
Preferably, in the step 1), polypropylene, polybutadiene, sulfur, sulfenamide accelerators, cobalt salt and graphene are mixed by an open mill and then injection molded by an injection molding machine.
By adopting the technical scheme, the polybutadiene, the sulfur, the sulfenamide accelerator, the cobalt salt and the graphene are mixed into the polypropylene through an open mill, the temperature is not required to be higher, the process that the sulfur is heated to generate a vulcanization reaction with the polybutadiene is reduced, more scorching time is left for the subsequent high-temperature injection molding process, and the quality of plastic products is improved.
Preferably, in the step 1), polypropylene, polybutadiene, sulfur, sulfenamide accelerators, cobalt salt and graphene are mixed by an open mill, ground into powder, uniformly stirred and then subjected to injection molding by an injection molding machine.
Through adopting above-mentioned technical scheme, through grinding into powder and stirring for after each component dopes the polypropylene, make each component distribute evenly through further dispersion, make each component distribute evenly among injection moulding's the plastic products, make later stage vulcanization and produce cuprous effect preferred, thereby make the effect that improves the cohesion of metal coating and plastic products better.
Preferably, in the step 1), the injection molding temperature is 195-200 ℃.
By adopting the technical scheme, the scorching caused by overhigh temperature is avoided by controlling the injection molding temperature, and the quality of plastic products is ensured.
Preferably, the sulfenamide accelerator is accelerator CZ.
By adopting the technical scheme, the effect of delaying vulcanization is better by adopting the accelerator CZ.
Preferably, the cobalt salt is cobalt naphthenate.
By adopting the technical scheme, the cobalt naphthenate is adopted, so that the effect of promoting the generation of the active cuprous sulfide is better, the binding force between the metal coating and the plastic product is better provided, and the electroplating quality is better.
In summary, the present application has the following beneficial effects:
1. as the polybutadiene and the sulfur are added into the polypropylene and heated and insulated after the copper plating layer is electroplated, the double bond of the polybutadiene is opened by the sulfur, the sulfur reacts with the polybutadiene and is connected with the polybutadiene, simultaneously, cuprous sulfide is produced by the reaction of the sulfur and the copper, the cuprous sulfide and the vulcanized polybutadiene generate chemical bonding in a cuprous sulfide-polybutadiene sulfide form, polybutadiene molecular chains are intertwined by polypropylene molecular chains, so that the copper plating layer is connected and combined with the plastic product through the chemical bonding in the cuprous sulfide-polybutadiene sulfide form, the bonding force of the chemical bonds is very high, the bonding force of the copper plating layer and the plastic product is greatly improved, the copper plating layer is not easy to bubble and peel off, then other metal plating layers are electroplated on the copper plating layer, and the bonding force of the metal plating layer and the copper plating layer is stronger and very stable because the metal bonds can be formed between the metal and the metal, therefore, the metal plating layer and the plastic product are stably combined, and the conditions of bubbling, peeling and the like are not easy to generate.
2. In the application, the sulfenamide accelerator and the cobalt salt are preferably added into the polypropylene, so that the early vulcanization speed of the polybutadiene can be effectively reduced, the reaction of sulfur and copper is effectively promoted to generate active cuprous sulfide, and the chemical bonding effect of the cuprous sulfide-polybutadiene sulfide form is better.
3. In the application, the polybutadiene, the sulfur, the sulfenamide accelerator, the cobalt salt and the graphene are preferably blended through an open mill, so that the sulfur is heated and subjected to a vulcanization reaction with the polybutadiene without a high temperature, more scorching time is reserved for a subsequent high-temperature injection molding process, and the quality of a plastic product is improved.
Detailed Description
The present application will be described in further detail with reference to examples.
The information on the source of all the raw materials in the following examples and comparative examples is detailed in Table 1.
TABLE 1
Examples 1 to 3
A plastic surface electroplating manufacturing process comprises the following steps:
step 1), putting polypropylene into an open mill for plastication, then putting polybutadiene, sulfur, sulfenamide accelerators, cobalt salt, graphene and an antioxidant into the open mill for 4 times of thin passing, triangular wrapping for 8 times, taking out pieces, cutting into granules, then grinding into powder by a plastication pulverizer, putting the powder raw materials into a stirring kettle, stirring for 10min at 200r/min to obtain master batch, putting the master batch into an injection molding machine for injection molding to obtain a plastic product, wherein the injection molding temperature is 195 ℃.
Step 2), electroplating a copper coating on the surface of the plastic product through an electroplating process to obtain the plastic product with the copper coating, wherein the electroplating temperature is 55 ℃, and the electroplating cathode current density is 5A/dm2The electrolyte comprises 100 parts of water and 25 parts of copper sulfate, the pH value of the electrolyte is adjusted to 4.5 by using sulfuric acid, and the electroplating time is 2 hours.
And 3) washing the copper-plated plastic product with clear water, drying the water, then placing the copper-plated plastic product into a drying oven, heating to 120 ℃, and preserving heat for 60min to obtain a cured copper-plated plastic product.
Step 4), naturally cooling the cured copper-plated plastic product to room temperature, and electroplating a metal plating layer on the cured copper-plated plastic product through an electroplating process to obtain a metal-plated plastic product, wherein the electroplating temperature is 55 ℃, and the electroplating cathode current density is 5A/dm2The electrolyte comprises 100 parts of water and 25 parts of nickel sulfate, the pH value of the electrolyte is adjusted to 4.2 by using sulfuric acid, and the electroplating time is 2 hours.
In examples 1 to 3, the specific amounts (in g) of polypropylene, polybutadiene, sulfur, a sulfenamide accelerator, a cobalt salt, graphene and an antioxidant to be added are shown in Table 2.
TABLE 2
Example 4
Compared with the embodiment 2, the plastic surface electroplating manufacturing process only has the following differences:
and 3) washing the copper-plated plastic product with clear water, drying the water, then placing the copper-plated plastic product into a drying oven, heating to 125 ℃, and preserving heat for 45min to obtain a cured copper-plated plastic product.
Example 5
Compared with the embodiment 2, the plastic surface electroplating manufacturing process only has the following differences:
in step 1), the injection molding temperature was 200 ℃.
Comparative example 1
A plastic surface electroplating manufacturing process comprises the following steps:
step 1), putting 1000g of polypropylene into an open mill for plastication, then putting 35g of graphene and 1g of antioxidant, performing thin-pass for 4 times, performing triangular packaging for 8 times, taking out pieces, cutting into granules, then grinding into powder by a plastication pulverizer, putting the powder raw materials into a stirring kettle, stirring for 10min at 200r/min to obtain master batch, putting the master batch into an injection molding machine for injection molding to obtain a plastic product, wherein the injection molding temperature is 195 ℃.
Step 2), electroplating a copper coating on the surface of the plastic product through an electroplating process to obtain the plastic product with the copper coating, wherein the electroplating temperature is 55 ℃, and the electroplating cathode current density is 5A/dm2The electrolyte comprises 100 parts of water and 25 parts of copper sulfate, the pH value of the electrolyte is adjusted to 4.5 by using sulfuric acid, and the electroplating time is 2 hours.
And 3) washing the copper-plated plastic product with clear water, drying the water, then placing the copper-plated plastic product into a drying oven, heating to 120 ℃, and preserving heat for 60min to obtain a cured copper-plated plastic product.
Step 4), naturally cooling the cured copper-plated plastic product to room temperature, and electroplating a metal plating layer on the cured copper-plated plastic product through an electroplating process to obtain a metal-plated plastic product, wherein the electroplating temperature is 55 ℃, and the electroplating cathode current density is 5A/dm2The electrolyte comprises 100 parts of water and 25 parts of nickel sulfate, the pH value of the electrolyte is adjusted to 4.2 by using sulfuric acid, and the electroplating time is 2 hours.
Comparative example 2
A plastic surface electroplating manufacturing process comprises the following steps:
step 1), putting 1000g of polypropylene into an open mill for plastication, then putting 50g of polybutadiene, 35g of graphene and 1g of antioxidant, performing thin pass for 4 times, performing triangular packaging for 8 times, taking out pieces, cutting into granules, then grinding into powder by a plastication pulverizer, putting the powder raw materials into a stirring kettle, stirring for 10min at 200r/min to obtain master batch, putting the master batch into an injection molding machine for injection molding to obtain a plastic product, wherein the injection molding temperature is 195 ℃.
Step 2), electroplating a copper coating on the surface of the plastic product through an electroplating process to obtain the plastic product with the copper coating, wherein the electroplating temperature is 55 ℃, and the electroplating cathode current density is 5A/dm2The electrolyte comprises 100 parts of water and 25 parts of copper sulfate, the pH value of the electrolyte is adjusted to 4.5 by using sulfuric acid, and the electroplating time is 2 hours.
And 3) washing the copper-plated plastic product with clear water, drying the water, then placing the copper-plated plastic product into a drying oven, heating to 120 ℃, and preserving heat for 60min to obtain a cured copper-plated plastic product.
Step 4), naturally cooling the cured copper-plated plastic product to room temperature, and electroplating a metal plating layer on the cured copper-plated plastic product through an electroplating process to obtain a metal-plated plastic product, wherein the electroplating temperature is 55 ℃, and the electroplating cathode current density is 5A/dm2The electrolyte comprises 100 parts of water and 25 parts of nickel sulfate, the pH value of the electrolyte is adjusted to 4.2 by using sulfuric acid, and the electroplating time is 2 hours.
Experiment 1
In each of examples and comparative examples, a square metal plating plasticized piece having a length of 10cm, a width of 10cm and a thickness of 1mm was prepared as a sample, 10 samples were prepared in each of examples and comparative examples, and after the samples were left to stand for 10 days, the surface blistering was observed and recorded.
The specific experimental record is detailed in table 3.
TABLE 3
According to the comparison of the data of the embodiment 2 and the comparative examples 1-2 in the table 3, the polybutadiene is added into the polypropylene independently, so that no obvious effect is provided for improving the bonding force between the polypropylene and the copper plating layer, when the polybutadiene, the sulfur, the sulfenamide accelerator and the cobalt salt are added into the polypropylene simultaneously, the bonding force between the copper plating layer and the polypropylene is obviously improved, the surface smoothness is reminded, and the phenomenon that the plating layer has no bubbles is avoided, the principle is that polybutadiene molecular chains are dispersed in polypropylene molecular chains and are tangled by the polypropylene molecular chains to form firm bonding force, and the sulfur has a vulcanization effect on the polybutadiene molecules, but because the polybutadiene molecular chains are less and dispersed, a continuous and large-area cross-linked net structure is not easily formed, but is dispersed in the polypropylene molecular chains as sulfides, and simultaneously, because the heating temperature is higher than the melting point of the sulfur, sulphur is convenient for the motion and contacts with the copper coating, and then under the high temperature condition, the reaction forms cuprous sulfide, cuprous sulfide forms the chemical bonding of cuprous sulfide-polybutadiene sulphide form with the polybutadiene of vulcanization, through chemical bond connection, make stability work strong, thereby connect copper coating stable on the plastic products surface, then electroplate other metals on the copper coating, because the stability of metallic bond, it is stable to make appearance metal coating and copper coating be connected, and then make appearance metal coating stably electroplate on plastic products, thereby be difficult for appearing the circumstances such as bubbling, drop, electroplating quality preferred.
The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.
Claims (7)
1. A plastic surface electroplating manufacturing process is characterized in that: the method comprises the following steps:
step 1), mixing polypropylene, polybutadiene, sulfur, sulfenamide accelerator, cobalt salt and graphene, and performing injection molding to obtain a plastic product;
step 2), electroplating a copper coating on the surface of the plastic product through an electroplating process to obtain a copper-coated plastic product;
step 3), heating the copper-plated plastic product to the temperature of 120-;
step 4), electroplating a metal coating on the cured copper-coated plastic product through an electroplating process to obtain a metal-coated plastic finished product;
the mass ratio of polypropylene, polybutadiene, sulfur, sulfenamide accelerator, cobalt salt and graphene is as follows: 100: 4.5-5.5: 0.3-0.4: 0.06-0.08: 0.009-0.011: 3.4-3.6.
2. The plastic surface electroplating manufacturing process according to claim 1, characterized in that: in the step 1), the mass ratio of the polypropylene, the polybutadiene, the sulfur, the sulfenamide accelerator, the cobalt salt and the graphene is as follows: 100: 5: 0.35: 0.07: 0.01: 3.5.
3. a plastic surface plating process according to any one of claims 1-2, wherein: in the step 1), polypropylene, polybutadiene, sulfur, sulfenamide accelerators, cobalt salt and graphene are mixed by an open mill and then injection molded by an injection molding machine.
4. The plastic surface electroplating manufacturing process according to claim 3, wherein: in the step 1), polypropylene, polybutadiene, sulfur, sulfenamide accelerators, cobalt salt and graphene are mixed by an open mill, ground into powder, uniformly stirred and then subjected to injection molding by an injection molding machine.
5. The plastic surface electroplating manufacturing process according to claim 4, wherein: in the step 1), the injection molding temperature is 195-200 ℃.
6. A plastic surface plating process according to any one of claims 1-2, wherein: the sulfenamide accelerator is accelerator CZ.
7. The plastic surface electroplating manufacturing process according to claim 6, wherein: the cobalt salt is cobalt naphthenate.
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| CN109553966A (en) * | 2018-10-16 | 2019-04-02 | 成霖企业股份有限公司 | The high-density plastic's composition and high-density plastic's product and preparation method of electrodepositable |
| CN112876829A (en) * | 2021-01-15 | 2021-06-01 | 万华化学(四川)有限公司 | Electroplating PC/ABS alloy material and preparation method thereof |
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| US8293846B2 (en) * | 2008-09-26 | 2012-10-23 | Fujifilm Corporation | Composition for forming layer to be plated, method of producing metal pattern material, metal pattern material |
| CN102418091B (en) * | 2010-04-14 | 2014-02-12 | 比亚迪股份有限公司 | Plastic product and preparation method for same |
| US9085687B2 (en) * | 2012-02-03 | 2015-07-21 | Sabic Global Technologies B.V. | Polycarbonate blends having improved electroplate adhesion |
| CN103144244A (en) * | 2013-03-20 | 2013-06-12 | 四维尔丸井(广州)汽车零部件有限公司 | Plastic electroplating product and preparation method thereof |
| CN107556577A (en) * | 2017-08-10 | 2018-01-09 | 浙江大学 | One kind includes polyethylene rubber and polyacrylic thermoplastic sulfurized rubber |
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| CN109553966A (en) * | 2018-10-16 | 2019-04-02 | 成霖企业股份有限公司 | The high-density plastic's composition and high-density plastic's product and preparation method of electrodepositable |
| CN112876829A (en) * | 2021-01-15 | 2021-06-01 | 万华化学(四川)有限公司 | Electroplating PC/ABS alloy material and preparation method thereof |
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