Method for preparing porous conductive coating on plastic surface

A porous conductive and plastic technology, which is applied in the direction of conductive coating, metal material coating process, coating, etc., can solve the problems of affecting the bonding force of coating film and limited applicability, and achieve the goal of increasing mechanical anchoring, improving efficiency and reducing pollution Effect

Inactive Publication Date: 2009-01-07
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] Embodiment 1: electroplating (water plating) acid copper on ABS products

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

[0020] 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] Disperse and mix with a magnetic stirrer according to the above-mentioned raw material ratio, and prepare nano-modified polymer emulsion. The electroplating process flow is: ABS workpiece, chemical degreasing, dilute acid (dilute sulfuric acid of 3mol / L and pure acetic acid in volume ratio (4: 1)) Activate for 5 minutes, dry at 50°C for 20 minutes, impregnate nano-modified polymer emulsion, dry at 70°C for 30 minutes, activate with mixed acid for 5 minutes, wash twice with water, and electroplate acid copp...

Embodiment 2

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

[0027] The organic solvent (using ethyl acetate, butanone and N-methyl-2-pyrrolidone, by volume, ethyl acetate: butanone: N-methyl-2-pyrrolidone=10:1:1) was 45g;

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

[0029] Resin (ABS and acrylic resin, by mass ratio, ABS: acrylic resin=10: 1) is 6g;

[0030] Conductive particle (nano-silver and nano-copper, by 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 raw material ratios, and prepare nano-modified polymer (SNP) emulsions. The vacuum coating process is: BMC workpieces, chemical degreasing, strong alkali activation for 10 minutes, drying at 50°C for 20 minutes, and spraying nano-modified polymers. Non-toxic polyme...

Embodiment 3

[0034] Embodiment 3: electroplating (water plating) nickel at nylon PA6

[0035] Organic solvent (using butyl acetate, heptanone and N-methyl-2-pyrrolidone, by volume, 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, by mass ratio, ABS: acrylic resin=3: 0.2) is 3g;

[0038] Conductive particle (nanometer silver and carbon nanotube, by mass ratio, nanosilver: carbon nanotube=2: 1) is 3g;

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

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

[0041] Disperse and mix with a magnetic stirrer according to the above raw material ratio, and prepare nano-modified polymer (SNP) emulsion. The electroplating process is: nylon workpiece, chemical degreasing, dilute acid (6mol / L dilute sulfuric acid and pure acetic acid by volume ratio) (4:1)) activated for 5 minutes, dried at 50°C for 20 minutes, sprayed nano-modifie...

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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 porous conductive 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 cleaned and 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 present invention relates to a method for plastic surface treatment, in particular to a preparation method for obtaining a layer of porous conductive coating on the plastic surface, the porous conductive coating can provide a good coating 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 plastics to replace metals continues to increase. However, when using engineering plastics with different functions, they all face an important problem: how to form a transitional coating on the plastic substrate to connect the substrate and the metal layer, so as to ensure good appearance and bonding force. [0003] In order to be able to plate a metal layer on the plastic surface, the plastic surface needs to be treated. The commonly used plastic surface treatment methods are: In traditional electroplating (water plating), chemi...

Claims

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Application Information

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Patent Type & Authority Applications(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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