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Coating for circuit of LDS shell

A coating and circuit technology, applied in the field of coatings for LDS chassis circuits, can solve the problems of primers failing to meet performance requirements, and achieve the effects of improving antenna circuit quality, product yield, and production efficiency

Inactive Publication Date: 2013-11-27
GUANGDONG JANUS SMART GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the primer coating used in electroless plating, its performance has higher requirements, and it must have good radium engraving, acid and alkali resistance, and water boiling resistance. However, the existing LDS antenna case line electroless plating process uses The primer does not meet the above performance requirements

Method used

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  • Coating for circuit of LDS shell
  • Coating for circuit of LDS shell

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Embodiment Construction

[0016] Embodiments of the present invention are described in detail below. It should be emphasized that the following description is only exemplary and not intended to limit the scope of the invention and its application.

[0017] In some typical embodiments, in terms of parts by mass, the formula composition of the coating for LDS casing circuit can be:

[0018] Acrylic resin 10-60 parts

[0019] Fluorine modified silicone resin 5-20 parts

[0020] Silicone modified acrylic compatibilizer 1-10 parts

[0021] Carbon black 3-20 parts

[0022] 0.3-10 parts of coupling agent

[0023] 0.1-8 parts of light absorbing agent

[0024] Leveling agent 0.1-3 parts

[0025] Solvent 20-120 parts

[0026] Among them, the fluorine-modified silicone resin can significantly improve the acid and alkali resistance and water boiling resistance of the coating, and the use of carbon black and light absorbers together can improve the laser engraving of the coating, making the coating easy to l...

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Abstract

The invention discloses a coating for a circuit of an LDS shell. The coating comprises, by mass, 10 to 60 parts of an acrylic resin used as a matrix resin, 5 to 20 parts of a fluorine-modified organic silicone resin, 1 to 10 parts of a compatibilizer, 3 to 20 parts of carbon black, 0.1 to 8 parts of a light absorbent and a proper amount of a solvent. According to the invention, addition of 5 to 20 parts of the fluorine-modified organic silicone resin enables acid and alkali resistance and boiling resistance of the coating to be obviously improved; addition of 3 to 20 parts of carbon black and 0.1 to 8 parts of the light absorbent enables absorption of laser rays to be greatly improved, laser engraving performance of the coating to be substantially enhanced and generation of sawteeth and residues to be avoided.

Description

technical field [0001] The invention belongs to the technical fields of paint and chemical industry, and in particular relates to a paint for LDS casing circuit. Background technique [0002] With the development of thinner and lighter mobile electronic products, laser direct structuring (LDS) technology has been widely used in the manufacture of antenna lines for mobile phones, tablet computers, etc. The existing LDS antenna is made by engraving a circuit diagram on an activatable plastic shell with a laser, activating the metal additives in the plastic, and then performing electroless plating to obtain the antenna circuit. Since the lines of electroless plating protrude from the surface of the plastic substrate, in order to overcome the problems of uneven surface and poor appearance effect after surface spraying and decoration, the existing spraying treatment method is to first spray a layer of primer, polish it with sandpaper, and then Spraying, and then grinding, at lea...

Claims

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Application Information

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IPC IPC(8): C09D133/00C09D183/08C09D7/12
Inventor 林智健谢守德王长明
Owner GUANGDONG JANUS SMART GRP CO LTD
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