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Surface roughening method before plating of liquid crystal polymer plastics and liquid crystal polymer plastics

A technology of liquid crystal polymers and surface roughening, which is applied in the field of polymers, can solve the problems of difficulty in mass production and high cost, and achieve the effects of improved interface adhesion, simple method, and convenient operation

Active Publication Date: 2021-12-03
SHENZHEN FRD SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The surface roughening of liquid crystal polymer products before electroless plating is generally activated by lds laser, which is costly and difficult to produce in large quantities

Method used

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  • Surface roughening method before plating of liquid crystal polymer plastics and liquid crystal polymer plastics
  • Surface roughening method before plating of liquid crystal polymer plastics and liquid crystal polymer plastics
  • Surface roughening method before plating of liquid crystal polymer plastics and liquid crystal polymer plastics

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Provide a liquid crystal polymer plate, immerse the liquid crystal polymer plate in the swelling liquid, stir, and swell for 10 minutes at 25°C; the swelling liquid is made by mixing the following raw materials in volume percentage: dimethylformamide 25%, N- Add 15% methylpyrrolidone, 30% ethylene glycol ether, and distilled water to 100%. Immerse the swollen liquid crystal polymer plate in the microetching solution, and perform microetching treatment at 60°C for 30 minutes; the microetching solution for each liter of microetching treatment includes potassium permanganate 0.15 mol / L, sodium hydroxide 12 mol / L . The liquid crystal polymer plate after the microetching treatment was immersed in a neutralizing solution, and neutralized at 40° C. for 5 minutes; the neutralizing solution was a 20 g / l sodium bisulfite solution. After neutralization, the liquid crystal polymer plate is rinsed with distilled water to complete the surface roughening treatment to obtain a roughen...

Embodiment 2

[0047] Provide a liquid crystal polymer plate, immerse the liquid crystal polymer plate in the swelling liquid, stir, and swell for 10 minutes at 25°C; the swelling liquid is made by mixing the following raw materials in volume percentage: dimethylformamide 35%, N- Add 5% methylpyrrolidone, 15% ethylene glycol ether, and distilled water to 100%. Immerse the swollen liquid crystal polymer plate in the microetching solution, and perform microetching treatment at 80°C for 6 minutes; the microetching solution for each liter of microetching treatment includes potassium permanganate 0.45 mol / L, sodium hydroxide 8 mol / L . The liquid crystal polymer plate after the microetching treatment is immersed in a neutralizing solution, and neutralized at 25°C for 10 minutes; the neutralizing solution is a solution including 60-120ml / L sulfuric acid and 20-40ml / L hydrogen peroxide. After neutralization, the liquid crystal polymer plate is rinsed with distilled water to complete the surface rou...

Embodiment 3

[0050]Provide a liquid crystal polymer plate, immerse the liquid crystal polymer plate in the swelling liquid, stir, and swell for 10 minutes at 25°C; the swelling liquid is made by mixing the following raw materials in volume percentage: dimethylformamide 20%, N- Add 10% methylpyrrolidone, 20% ethylene glycol ether, and distilled water to 100%. Immerse the swelled liquid crystal polymer plate in the microetching solution, and perform microetching treatment at 70°C for 15 minutes; the microetching solution for each liter of microetching treatment includes 0.3 mol / L of potassium permanganate and 10 mol / L of sodium hydroxide . The liquid crystal polymer plate after the microetching treatment was immersed in a neutralizing solution, and neutralized at 30° C. for 8 minutes; wherein the neutralizing solution was a mixed solution of 10 wt % oxalic acid solution and 100 ml / L sulfuric acid solution. After neutralization, the liquid crystal polymer plate is rinsed with distilled water...

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Abstract

The invention discloses a method for roughening the surface of liquid crystal polymer plastics before plating and liquid crystal polymer plastics. The method for roughening the surface before plating comprises the following steps: S1, putting liquid crystal polymer plastics into swelling liquid for swelling treatment ; S2, putting the swollen liquid crystal polymer plastic into a microetching solution for microetching treatment; S3, putting the microetched liquid crystal polymer plastic into a neutralizing solution for neutralization treatment, and obtaining a roughened surface liquid crystal polymer plastic. The method for roughening the surface of liquid crystal polymer plastics before plating of the present invention is simple and easy to operate. The surface roughening treatment is carried out to liquid crystal polymer plastics in a wet method. After the treatment, the surface roughness increases obviously, and the contact angle The measurement results show that the surface changes from hydrophobic to hydrophilic, and the interfacial adhesion is significantly improved, which is suitable for liquid crystal polymer plastics with complex shapes and large-scale production.

Description

technical field [0001] The invention relates to the technical field of polymers, in particular to a method for roughening the surface of liquid crystal polymer plastics before plating and the liquid crystal polymer plastics. Background technique [0002] Liquid Crystal Polyester (LCP for short) is a new type of high-performance special engineering plastic developed in the early 1980s. It is an anisotropic aromatic polyester product composed of rigid molecular chains. Excellent physical strength and crystallinity. Under certain physical conditions, it has the fluidity of liquid and the physical state of anisotropy of crystals-the liquid crystal state has special properties, and the tensile strength and flexural modulus of the product can be developed over 10 years. Various engineering thermoplastics. Due to the excellent comprehensive performance of liquid crystal polymer in thermal, electrical, mechanical and chemical aspects, it has been valued by various countries, and it...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C18/20C08J7/02C08J7/12
CPCC08J7/02C08J7/12C23C18/2086
Inventor 赵家兴李群英
Owner SHENZHEN FRD SCI & TECH