Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Preparation method of plastic product

A technology of plastic products and plastics, which is applied in the field of preparation of plastic products, and can solve the problems of complex metallization process and high energy requirements on the surface of plastics

Inactive Publication Date: 2011-10-05
BYD CO LTD
View PDF4 Cites 28 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention solves the technical problems of complex plastic surface metallization process and high energy requirements in the prior art

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0011] The invention provides a kind of preparation method of plastic product, comprises the following steps:

[0012] 1) Forming a plastic substrate; the plastic substrate is a thermoplastic or thermosetting plastic containing an electroless plating active substance, and the electroless plating active substance is evenly distributed in the thermoplastic or thermosetting plastic; the electroless plating active substance can promote chemical plating in the electroless plating solution. The substance from which the reduction reaction takes place;

[0013] 2) Sandblasting is carried out on the selected area of ​​the plastic substrate surface, and the corresponding area exposes the electroless plating active material and forms a chemically reducible activation area;

[0014] 3) Electroless copper or electroless nickel plating is performed on the surface of the chemically reducible and activated area in step 2), and at least one electroless plating and / or electroplating is continue...

Embodiment 1

[0065] (1) will Co 2 o 3 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-speed mixer, extruded and granulated with a twin-screw extruder (Nanjing Rubber and Plastic Machinery Factory), and injection molded into mobile phones shell.

[0066] (2) Use Belden's 1211-12A to sandblast the entire area of ​​the mobile phone case. The sandblasting conditions include: the sand material is 150# white corundum sand, the sandblasting temperature is 40°C, the pressure is 80psi, and the sandblasting time is for 8s.

[0067] (3) Immerse in the chemical nickel plating solution for 10 minutes to form a nickel layer with a thickness of 3 μm; immerse in the chemical copper plating solution for 4 hours to form a copper layer with a thickness of 13 μm; then immerse in the chemical ni...

Embodiment 2

[0070] Adopt the method identical with embodiment 1 to prepare the plastic product of the present embodiment, difference is:

[0071] 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 at a mass ratio of 100:20:30:0.2, extruded, granulated, and then injection molded into a mobile phone antenna shell;

[0072] In step (3), the sequence of electroless plating is: first electroless nickel plating for 8 minutes to form a 2 μm thick nickel layer, then electroless copper plating for 4 hours to form a 13 μm thick copper layer, and then electroless nickel plating for 10 minutes to form a 3 μm thick nickel layer, Finally, a gold layer with a thickness of 0.03 μm is flash-plated.

[0073] Through the above steps, the plastic product used as the mobile phone antenna shell in this embodiment is obtained.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Particle sizeaaaaaaaaaa
Thicknessaaaaaaaaaa
Thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a preparation method of a plastic product, and the plastic product made with the method. The method comprises the following steps: (1) forming a plastic substrate comprising a chemical plating promoter, wherein the chemical plating promoter is a substance which can promote a chemical reduction reaction in a chemical plating liquid; (2) carrying out a sand-blasting treatment upon a selected area on the surface of the plastic substrate, such that the chemical plating promoter are revealed in the area, and an active area which can be chemically reduced is formed; (3) chemically plating copper or nickel on the active area obtained from step (2), and carrying out at least one time of chemical plating and / or electroplating, such that a metal coat is formed on the plastic substrate. The method provided by the present invention has advantages of simple technology, low energy requirement, and low cost. Further, because the chemical plating promoter is distributed in the substrate, the bonding force between the chemically plated coat and the plastic substrate is strong.

Description

technical field [0001] The invention belongs to the field of surface metallization of non-metallic materials, in particular to a method for preparing plastic products. 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 of the plastic substrate, and then r...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C23C18/20C23C18/30C23C18/38C23C18/32C23C28/02C25D5/56
Inventor 陈大军谢睿
Owner BYD CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com