Method for preparing porous conductive coating on plastic surface

A porous conductive and plastic technology, applied in conductive coatings, metal material coating processes, coatings, etc., can solve problems such as limited applicability and affect coating adhesion, improve efficiency, increase mechanical anchoring, and broaden the scope of use Effect

Inactive Publication Date: 2011-01-19
XIAMEN RUNNER IND CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

All of the above methods lack a guarantee of binding force with the electroplated metal layer. They are all attracted by hydrogen bonds, without forming chemical bonds or physical anchoring, which will affect the binding force of the entire coating.
[0006] Vacuum coating is to directly deposit a metal layer on the plastic substrate by sputtering or evaporation coating, but its bonding force needs to be guaranteed by plasma etching, and its applicability is limited. material defects repaired

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Example 1: Electroplating (water plating) acid copper on ABS products

[0019] The organic solvent (using acetone and ethyl acetate, by volume ratio, acetone: ethyl acetate = 10:1) is 45g;

[0020] The non-solvent substance (water) is 2g;

[0021] Resin (ABS) is 2.5g;

[0022] Conductive particles (nano silver and nano copper, mass ratio 2:1) are 4g;

[0023] Leveling agent (polydimethylsiloxane) is 0.1g;

[0024] The dispersant (polyvinylpyrrolidone) is 0.1 g.

[0025] According to the above-mentioned raw material ratio, use a magnetic stirrer to disperse and mix to prepare a nano-modified polymer emulsion. The electroplating process is: ABS workpiece, chemical degreasing, dilute acid (3mol / L dilute sulfuric acid and pure acetic acid in a volume ratio (4: 1) Activating for 5 minutes, drying at 50°C for 20 minutes, immersing in nano-modified polymer emulsion, drying at 70°C for 30 minutes, mixing acid activation for 5 minutes, washing twice with water, and electroplating acid copp...

Embodiment 2

[0026] Example 2: PVD copper plating on unsaturated polyester (BMC)

[0027] Organic solvent (using ethyl acetate, methyl ethyl ketone and N-methyl-2-pyrrolidone, ethyl acetate: methyl ethyl ketone: N-methyl-2-pyrrolidone = 10:1:1, by volume) is 45g;

[0028] Non-solvent substance (ethanol) is 5g;

[0029] The resin (ABS and acrylic resin, according to the mass ratio, ABS: acrylic resin = 10:1) is 6g;

[0030] Conductive particles (nano silver and nano copper, according to the mass ratio, nano silver: nano copper = 1:3) is 5g;

[0031] Leveling agent (polyether modified silicone oil and KH560 silane coupling agent, volume ratio: 1:1) is 0.1g;

[0032] Dispersant (polyethyleneimine) is 0.1g;

[0033] Disperse and mix with a magnetic stirrer according to the above-mentioned raw material ratio to prepare nano-modified polymer (SNP) emulsion. The vacuum coating process is: BMC workpiece, chemical degreasing, strong alkali activation for 10 minutes, drying at 50°C for 20 minutes, spraying nano...

Embodiment 3

[0034] Example 3: Nickel plating (water plating) on ​​nylon PA6

[0035] The organic solvent (using butyl acetate, heptanone and N-methyl-2-pyrrolidone, by volume ratio, butyl acetate: heptanone: N-methyl-2-pyrrolidone = 10:1:1) is 45g;

[0036] Non-solvent substance (water) is 1g;

[0037] Resin (ABS and acrylic resin, according to mass ratio, ABS: acrylic resin = 3:0.2) is 3g;

[0038] Conductive particles (nano silver and carbon nanotubes, according to the mass ratio, nano silver: carbon nanotube = 2:1) is 3g;

[0039] Leveling agent (polyether modified silicone oil) is 0.1g;

[0040] The dispersant (polyethyleneimine) is 0.1 g.

[0041] Disperse and mix with a magnetic stirrer according to the above-mentioned raw material ratio to prepare a nano-modified polymer (SNP) emulsion. The electroplating process is: nylon workpiece, chemical degreasing, dilute acid (6mol / L dilute sulfuric acid and pure acetic acid according to the volume ratio (4:1)) Activation for 5 minutes, drying at 50°C ...

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Abstract

A method for preparing a porous conductive coating on a plastic surface relates to a method for plastic surface treatment, in particular to a preparation method for obtaining a layer of porous conductive coating on a plastic surface. The porous conductive coating can provide a good substrate for the conventional electroplating (galvanic plating) and ion plating and a method for preparing a porousconductive coating on a plastic surface. Resin is added in an organic solvent, is added with a dispersant and non solvent materials after dissolution, and is added with nano-conductive material particles and leveling agents to mix evenly and then nanometer modified polymer latex is prepared; the plastic surface is activated by sulphuric acid and acetic acid or sodium hydroxide after being cleanedand de-oiled, and is dried to reserve; the nanometer modified polymer latex is sprayed on the dried plastic surface to be dried and activated by the mixed acid of sulphuric acid, hydrochloric acid and acetic acid, namely, a layer of porous conductive coating is prepared on the plastic surface.

Description

Technical field [0001] The invention relates to a plastic surface treatment method, in particular to a preparation method for obtaining a porous conductive coating on the plastic surface. The porous conductive coating can provide a good performance for traditional electroplating (water plating) and vacuum coating. Substrate. Background technique [0002] With the shortage of limited resources such as metal materials, the demand for replacing metal with plastic is increasing. However, when using engineering plastics with different functions, they all face an important problem: how to form a transition coating on the plastic substrate to connect the substrate and the metal layer to ensure a good appearance and bonding force. [0003] In order to be able to plate a layer of metal on the plastic surface, the plastic surface needs to be treated. The commonly used plastic surface treatment methods are: in traditional electroplating (water plating), chemical roughening, sensitization, ac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J7/04C09D5/24C09D155/02C09D125/06C09D169/00C09D127/06C09D133/00C25D5/56C23C14/02C23C14/12
Inventor 吴子豹关栋云
Owner XIAMEN RUNNER IND CORP
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