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Resin composition directly used in electroplating

A resin composition and a direct technology, applied in the field of resin composition and its preparation, can solve the problems of alloy materials without electrical conductivity, difficult to control micropores, unable to continue to simplify sensitization, activation, degumming, etc. The effect of simplifying the electroplating process and protecting the environment

Active Publication Date: 2014-10-08
SHANGHAI KUMHO SUNNY PLASTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the alloy material obtained by this method has no electrical conductivity, and cannot continue to simplify the processes of sensitization, activation, degumming, and electroless nickel plating.
At the same time, the foaming agent used in this method is a reactive foaming agent, and the degree and size of foaming are greatly affected by the reaction speed of the foaming agent, and the micropores are difficult to control.
[0005] In summary, there is an urgent need for a product that can form uniform and small micropores as anchor pits for metal plating, and also has certain electrical conductivity, which can save the need for roughening, sensitization, activation, degumming, Resin composition of processes such as electroless nickel plating, but there is no report on this type of resin material at present

Method used

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  • Resin composition directly used in electroplating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Example 1 Preparation of the resin material that can be used for direct electroplating in the present invention (1)

[0032] Each component and the weight of each component are:

[0033] Thermoplastic resin ABS: 95Kg,

[0034] Microcapsule foaming agent: 2Kg,

[0035] Antimony-doped tin dioxide powder: 3Kg.

[0036] The particle size of the microcapsule foaming agent is 30 μm, the wall thickness of the shell is 7 μm, the shell is 1,1-dichloroethylene copolymer, and the core is isobutane; the resistance of the antimony-doped tin dioxide powder is 6Ω·cm, particle size 20nm, pH value 3.

[0037] The preparation method is as follows:

[0038] (1) adding thermoplastic resin, microcapsule foaming agent, and antimony-doped tin dioxide powder into a mixing mixer for 5 minutes;

[0039] (2) Pass the mixture through an injection molding machine to obtain a resin material that can be directly used for electroplating. The barrel temperature of the extruder is 200-250° C., and...

Embodiment 2

[0040] Example 2 The preparation of the resin material that can be used for direct electroplating in the present invention (2)

[0041] Each component and the weight of each component are:

[0042] Thermoplastic resin PC: 75Kg,

[0043] Microcapsule foaming agent: 5Kg,

[0044] Antimony-doped tin dioxide powder: 20Kg.

[0045] The particle size of the microcapsule foaming agent is 50 μm, the shell wall thickness is 15 μm, the shell is styrene-acrylonitrile copolymer, and the core is isopentane; the resistance of the antimony-doped tin dioxide powder is 1Ω·cm , particle size 10nm, pH value 4.

[0046] The preparation method is as follows:

[0047] (1) adding thermoplastic resin, microcapsule foaming agent, and antimony-doped tin dioxide powder into a mixing mixer for 5 minutes;

[0048] (2) Pass the mixture through an injection molding machine to obtain a resin material that can be directly used for electroplating. The barrel temperature of the extruder is 220-250° C., a...

Embodiment 3

[0049] Example 3 Preparation of the resin material that can be directly used for electroplating in the present invention (3)

[0050] Each component and the weight of each component are:

[0051] Thermoplastic resin PA: 85Kg,

[0052] Microcapsule foaming agent: 3Kg,

[0053] Antimony-doped tin dioxide powder: 12Kg.

[0054] The particle size of the microcapsule foaming agent is 5 μm, the shell wall thickness is 2 μm, the shell is styrene-acrylic acid copolymer, and the core is isopentane; the resistance of the antimony-doped tin dioxide powder is 10 Ω·cm, The particle size is 50nm and the pH value is 2.

[0055] The preparation method is as follows:

[0056] (1) adding thermoplastic resin, microcapsule foaming agent, and antimony-doped tin dioxide powder into a mixing mixer for 5 minutes;

[0057] (2) Pass the mixture through an injection molding machine to obtain a resin material that can be directly used for electroplating. The barrel temperature of the extruder is 220...

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Abstract

The invention relates to a resin composition capable of being directly electroplated. The resin composition comprises the following components in parts by weight: 75 to 95 parts of thermoplastic resin, 2 to 5 parts of a microcapsule foaming agent and 3 to 20 parts of conductive powder, wherein the thermoplastic resin is selected from ABS (Acrylonitrile Butadiene Styrene), PC (Poly Carbonate), PP (Propene Polymer), PE (Poly Ethylene), PA (Poly Amide), PBT (Poly Butylene Terephthalate), PET (Poly Ethylene Terephthalate), PMMA (Poly Methyl Methacrylate), ASA (Acrylonitrile Styrene Acrylate), AES (Acrylonitrile Ethylene Styrene) or is an alloy resin of the ABS, the PC, the PP, the PE, the PA, the PBT, the PET, the PMMA, the ASA and the AES; the conductive powder is antimony-doped stannic oxide powder. The resin composition contains the microcapsule foaming agent and the conductive powder, so that fine and even holes can be formed in a product after the resin composition is molded in an injection molding manner; meanwhile, the product has the certain conductivity, so that a metal layer can be directly electroplated on the surface of the product. Thus, the working procedures of coarsening and palladium soaking in an electroplating process are omitted. Therefore, the complicated electroplating process is simplified, the working efficiency is improved and the electroplating cost is lowered. More importantly, a concentrated sulfuric acid and a dichromic acid do not need to serve as a coarsening liquid during the electroplating process, so that the pollution is greatly reduced, i.e., the environmental friendliness is realized.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a resin composition that can be directly used for electroplating and a preparation method thereof. Background technique [0002] Low energy consumption and low emission are the future trend of automobile development. It is estimated that the weight of automobiles will be reduced by more than 20% in the next ten years. As one of the best optional materials, plastics are increasingly used in automobiles. Plastic electroplating products are widely used in automotive parts such as automotive radiator grilles, body anti-scratch strips, door handles, and instrument decorative frames because of their bright metal appearance and light weight. However, electroless plating requires complex processes such as roughening, sensitization, activation, degumming, electroless nickel plating, copper plating, nickel plating, and chrome plating to achieve a good plating surface effect. Am...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L55/02C08L69/00C08L77/00C08L23/12C08L23/06C08L67/02C08L33/12C08L51/00C08L51/04C08K3/22C08J9/14
Inventor 邱卫美周霆罗明华辛敏琦
Owner SHANGHAI KUMHO SUNNY PLASTICS
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