Plastic product and preparation method thereof

A technology of plastic products and plastics, which is applied in the direction of chemical instruments and methods, layered products, and coating of superimposed layers. It can solve the problems of poor adhesion between the coating and the plastic substrate, complex metallization process of the plastic surface, and high energy requirements.

Active Publication Date: 2011-05-25
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention aims to solve the technical problems of complex plastic surface metallization process, high energy requirements, and poor adhesion between the coating and the plastic substrate in the prior art

Method used

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Examples

Experimental program
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Effect test

preparation example Construction

[0012] The invention provides a kind of preparation method of plastic product, comprises the following steps:

[0013] 1) molding plastic matrix; described plastic matrix is ​​the thermoplastic or thermosetting plastic that contains electroless plating accelerator, and electroless plating accelerator is evenly distributed in thermoplastic or thermosetting plastic; Described electroless plating accelerator is Ni 2 o 3 、Co 2 o 3 , CuSiO 3 、CuC 2 o 4 , one or more of Cu / Fe / Mn or Cu / Fe / Al ternary co-sintered oxides, Cu / Fe / Al / Mn quaternary co-sintered oxides;

[0014] 2) Laser vaporizes the surface of the plastic substrate, exposing the electroless plating accelerator;

[0015] 3) Electroless copper plating or electroless nickel plating on the surface of the electroless plating promoter in step 2), continue to perform at least one electroless plating and / or electroplating, and form a metal layer on the surface of the plastic substrate.

[0016] The inventors of the present i...

Embodiment 1

[0045] (1) CuC 2 o 4 2H 2 O, vacuum drying to decrystallize water, ball milling until the D50 is less than 1 μm, and drying; PP resin, CuC 2 o 4 , talcum powder and antioxidant 1010 are mixed with a high-speed mixer at a mass ratio of 100:15:10:0.2, and then extruded into pipes with a single-screw extruder (Nanjing Rubber and Plastic Machinery Factory), and the extrusion temperature is 180°C .

[0046] (2) Use an infrared laser (Tide, DPF-M12) to irradiate the outer surface of the entire pipe. The laser parameters are: wavelength 1064nm, scanning speed 1000mm / s, step size 9μm, delay 30μs, frequency 40KHz, power 3W, filling spacing 50μm; clean the surface of the pipe.

[0047] (3) immerse in the electroless copper plating solution for 3 hours to form a copper layer with a thickness of 10 μm, immerse in the electroless nickel plating solution for 10 minutes, and form a nickel layer with a thickness of 3 μm on the outside of the copper layer; electroless copper plating solut...

Embodiment 2

[0050] Adopt the method identical with embodiment 1 to prepare the plastic product of the present embodiment, difference is:

[0051] In step (1), the CuSiO 3 Ball mill until the D50 is less than 2 μm, dry; PC resin, CuSiO 3 , antioxidant 168, and EVA wax are mixed in a mass ratio of 100:20:0.2:0.1, extruded, granulated, and then injection molded into an electrical housing;

[0052] In step (2), the infrared laser is used to print out the metal circuit pattern on the electrical appliance casing; after the laser gasification is completed, the electrical appliance casing is ultrasonically cleaned;

[0053] In step (3), the order of the electroless plating is: first electroless nickel plating for 10 minutes to form a 3 μm thick nickel layer, then electroless copper plating for 3 hours to form an 11 μm thick copper layer, and finally electroless nickel plating for 10 minutes to form a 3 μm thick nickel layer.

[0054] Through the above-mentioned steps, the plastic product used a...

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Abstract

The invention provides a plastic product and a preparation method thereof. The method comprises the following steps: 1) forming a plastic base, wherein the plastic base contains chemically plated accelerators which are one or more of Ni2O3, Co2O3, CuSiO3, CuC2O4, Cu / Fe / Mn or Cu / Fe / Al ternary co-sintered oxides and Cu / Fe / Al / Mn quaternary co-sintered oxides; 2) gasifying the surface of the plastic base with laser to expose the chemically plated accelerators; and 3) chemically plating copper or nickel and continuing chemical plating and / or electroplating at least once to form a metal layer on the surface of the plastic base. The preparation method provided by the invention has the advantages of simple process, low requirement for energy and low cost. In addition, the chemically plated accelerator is distributed in the plastic base, so the plating layer formed after chemical plating and the plastic base have very high adhesion.

Description

technical field [0001] The invention belongs to the field of surface metallization of non-metallic materials, and in particular relates to a preparation method of a plastic product and a plastic product. Background technique [0002] A metal layer is formed on the surface of the plastic, which is used as a channel for electromagnetic signal transmission, and is widely used in automobiles, industries, computers, communications and other fields. The selective formation of a metal layer on the plastic surface is a core link in the manufacture of such plastic products. There are many methods for plastic surface metallization production lines. In the prior art, metal nuclei are first formed on the surface of the plastic substrate as the electroless plating catalytic active center, and then electroless plating is performed. [0003] For example, US2003031803A1 discloses the use of metal oxide particles such as ZnO, TiO 2 , ZrO 2 、Al 2 o 3 , CeO 2 It is coated on the surface ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C28/02C23C18/31C23C18/20C25D5/10B32B15/01
Inventor 宫清周良苗伟峰张雄
Owner BYD CO LTD
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