Environment-friendly method for conducting surface roughening on liquid crystal polymer devices before chemical plating

A liquid crystal polymer, environmentally friendly technology, applied in liquid chemical plating, metal material coating process, coating and other directions, can solve problems such as explosion, increase production cost, increase management cost and risk, and achieve simple operation steps , Post-processing simple and easy effects

Pending Publication Date: 2021-04-13
JIANGSU UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It has the following problems: (1) In the Pengrun stage, flammable and explosive organic solvents such as ethylene glycol monomethyl ether, etc. are required, and N-dimethylformamide is still a 2A carcinogen, and the Pengrun stage should be carried out above 50°C. During moistening treatment, the requirements for personal protection and production safety are extremely high; (2) High-concentration potassium p

Method used

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  • Environment-friendly method for conducting surface roughening on liquid crystal polymer devices before chemical plating
  • Environment-friendly method for conducting surface roughening on liquid crystal polymer devices before chemical plating
  • Environment-friendly method for conducting surface roughening on liquid crystal polymer devices before chemical plating

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0033]Example 1:

[0034]This embodiment is roughened by a flat-shaped LCP material, and the long width is 50 mm × 50 mmx1mm.

[0035]The liquid crystal polymer polymer surface is chemically roughened by the liquid crystal polymer, including the following steps:

[0036](1) Wash the LCP material with anhydrous ethanol, and rinse the water;

[0037](2) Add 1.0 mol / L of potassium sulfate solution to the reactor, heated to 65 ° C insulation; immerse the ozone generator in the potassium sulfate solution, open the generator, and enter the ozone; The solution was put into the solution; the LCP was placed in the above-mentioned potassium sulfate solution, and the ozone pass rate in this embodiment was 100 l / min.

[0038](3) Remove the LCP, rinse with tap water, immersed in an oxalate solution of 0.1 mol / L, soak for 2 minutes at room temperature (approximately 25 ° C); after removal, rinse it with distilled water and complete the surface roughening treatment.

[0039]The surface of the LCP material sur...

Example Embodiment

[0045]Example 2:

[0046]The present embodiment is substantially the same as that of Example 1, and the difference is that the LCP material is an experimental sample with a liquid crystal polymer polymer 5G antenna lid of a company. The cover is a flat area, a pin, a through hole, a blind hole, a right angle bend. The structure is more complicated. Such asFigure 5 As shown, the cover is overall, 5 cm long, 3.5 cm long, the needle and the blind hole diameter are 0.5mm × 1 mm, all over the cover, and there are a deep 1 mm under the needle, and a groove of 2 mm wide.

[0047]After roughening, cutting samples in each area, SEM observation found that the roughening effect was consistent with Example 1; and did not swell during the roughening process, the microstructure did not deform, the pin and the pore size were small, labinated, There is still a good cooperation between the cover and the cartridge microstructure, and there is no looseness and card death. Palladium activation, the copper wa...

Example Embodiment

[0066]Example 3:

[0067]The LCP material size of this embodiment is the same as in Example 1.

[0068]The chemical plating front surface coarsering of the LCP material of this embodiment includes the following steps:

[0069](1) Wash the LCP material with anhydrous ethanol, and rinse the water;

[0070](2) 1.5 mol / L of potassium sulfate solution was added, heated to 50 ° C insulation; immersed the ozone generator in the potassium sulfate solution, opened the generator, and passed the ozone; The solution is put into solution, starting to shock; put the LCP in the above-mentioned potassium sulfate solution, treated under ozone and ultrasonic co-action for 4 hours;

[0071](3) Remove the LCP, rinse with the tap water, immersed in 0.2 mol / L oxalic acid deoxidant solution, soak for 3 to 5 minutes at 30 ° C; after removing, rinse with distillation water, complete surface roughening treatment.

[0072]LCP materials after coarser were observed and tested: SEM observation found that the material surface ...

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Abstract

The invention discloses an environment-friendly method for conducting surface roughening on liquid crystal polymer devices before chemical plating. The environment-friendly method for conducting surface roughening on the liquid crystal polymer devices before chemical plating comprises the following steps: placing liquid crystal polymer (LCP) materials in potassium persulfate roughening liquid, introducing ozone, and conducting roughening treatment under the action of ultrasonic waves; and placing liquid crystal polymers subjected to roughening treatment in an oxidant-removing solution, and then taking out the liquid crystal polymers for cleaning to obtain roughened surfaces. According to the environment-friendly method for conducting surface roughening on the liquid crystal polymer devices before chemical plating, by using low-concentration potassium persulfate as the roughening liquid in combination with ring opening and oxidizing by the ozone and the cavitation and crushing action of the ultrasonic waves, the surfaces of the compound materials are subjected to roughening treatment, adopted technology methods and an adopted formula are environmentally friendly, no flammable, combustible or carcinogenic solvents are used, no high-temperature high-pressure operation is conducted, conventional equipment of an electroplate factory is adopted, the operation steps are simple, and the environment-friendly method for conducting surface roughening on the liquid crystal polymer devices before chemical plating has a good effect, and is especially suitable for large-scale surface roughening treatment of LCP devices of the fields of electronics, communication and micro-electronic machines.

Description

technical field [0001] The invention relates to a surface treatment method, in particular to a method for roughening the surface of a liquid crystal polymer. Background technique [0002] In recent years, liquid crystal polymer (Liquid Crystal PolVmer, LCP) has excellent physical and chemical properties, such as heat resistance and corrosion resistance, low cost, low loss of high-frequency electromagnetic signals, wide frequency range of use, stable dielectric constant, and high strength. High, light weight, and its injection molding performance is good; therefore, as a precision injection molded part, it is increasingly widely used in the fields of micro-electromechanical, electric power, electronics, communication, navigation and positioning, reconnaissance, and electronic countermeasure systems. Coating metal on the surface of LCP materials can prepare materials with integrated structure and function to replace the original metal parts. Among them, copper clad copper foil...

Claims

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Application Information

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IPC IPC(8): C23C18/22
CPCC23C18/22
Inventor 史兴岭任建徐玲利王宇鑫
Owner JIANGSU UNIV OF SCI & TECH
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