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Plastic product and preparation method thereof

A technology for plastic products and plastics, applied in chemical instruments and methods, layered products, thin material processing, etc., can solve problems such as poor adhesion between coatings and plastic substrates, complex metallization processes on plastic surfaces, 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
Comparison scheme
Effect test

preparation example Construction

[0016] The invention provides a kind of preparation method of plastic product, comprises the following steps:

[0017] 1) molding plastic matrix; said plastic matrix is ​​thermoplastic or thermosetting plastic containing electroless plating accelerator, and electroless plating accelerator is evenly distributed in thermoplastic or thermosetting plastic; Described electroless plating accelerator is the compound shown in formula I or II ;

[0018] AM x B y o z ……………………………………………Formula I

[0019] Among them, x=0-2, y=0.01-2, z=1-4; A is a metal element in the 10th and 11th columns of the periodic table; M is a trivalent metal element selected from Fe, Co, Mn, Al , Ga, In, Tl, one of the rare earth elements;

[0020] A'M' m o n ………………………………………………Formula II

[0021] Among them, m=0.01-2, n=2-4; A' is a metal element in the 9th, 10th and 11th columns of the periodic table, and M' is selected from one of Cr, Mo, W, Se, Te, Po;

[0022] 2) The laser is irradiated on a selected...

Embodiment 1

[0060] (1) CuFe 0.5 B 0.5 o 2.5 Put it into a high-speed ball mill and mill it for 10 hours until the average particle size of the powder is 700nm; mix PP resin, CuFe 0.5 B 0.5 o 2.5 , calcium silicate fiber and antioxidant 1010, according to the mass ratio of 100:10:30:0.2, mixed with a high mixer, extruded and pelletized with a twin-screw extruder (Nanjing Rubber and Plastic Machinery Factory), and injection molded into LED Lamp circuit board carrier.

[0061] (2) Use an infrared laser (Tide, DPF-M12) to irradiate the selected area of ​​the LED lamp circuit board carrier, and print out the metal circuit pattern in the selected area. The laser parameters are: wavelength 1064nm, scanning speed 1000mm / s, step The length is 9 μm, the time delay is 30 μs, the frequency is 40 KHz, the power is 3 W, and the filling distance is 50 μm; after the laser irradiation is completed, the surface of the plastic carrier is ultrasonically cleaned.

[0062] (3) Immerse in the chemical nic...

Embodiment 2

[0065] Adopt the method identical with embodiment 1 to prepare the plastic product of the present embodiment, difference is:

[0066] In step (1), the CuB 2 o 4 Ball milled to an average particle size of 800nm ​​and dried; PEEK resin, CuB 2 o 4 , glass fiber and antioxidant 168 are mixed according to the mass ratio of 100:20:30:0.2, extruded and granulated, and then injection molded to form an automobile engine electronic connector housing;

[0067] In step (3), the order of electroless plating is: first electroless nickel plating forms 2 μm thick nickel layer in 8 minutes, then chemical copper plating forms 13 μm thick copper layer in 4 hours, then electroless nickel plating forms 3 μm thick nickel layer in 10 minutes, Finally, a gold layer with a thickness of 0.03 μm is flash-plated.

[0068] Through the above steps, the plastic product used as the housing of the electronic connector of the automobile engine in this embodiment is obtained.

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Abstract

The invention provides a plastic product and a preparation method thereof. The method comprises the following steps of: (1) molding a plastic substrate, wherein the plastic substrate contains a chemical plating accelerating agent which is a compound shown as the formula I or II; (2) irradiating a selected region on the surface of the plastic substrate by laser, and exposing the chemical plating accelerating agent on a corresponding region; and (3) chemically plating copper or nickel, continuing to carry out chemical plating and / or electroplating at least once, and forming a metal layer on the surface of the plastic substrate. The preparation method provided by the invention has the advantages of simple process, low energy requirements and low cost; in addition, the chemical plating accelerating agent is distributed in the plastic substrate, therefore, a plating layer formed after the chemical plating has very high binding force with the plastic substrate.

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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IPC IPC(8): C23C28/02C23C18/16C23C18/38B32B15/01
CPCC23C18/1641C23C18/1653C23C18/204C25D5/56C23C18/1651Y10T428/12569B32B15/08C23C18/32C25D13/10
Inventor 宫清周良苗伟峰张雄
Owner BYD CO LTD
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