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Microetching method on ABS engineering plastic element surface without chromium pollution

A technology for engineering plastics and parts, which is applied in the field of micro-etching treatment on the surface of ABS engineering plastics parts, can solve problems such as environmental pollution and achieve good results

Inactive Publication Date: 2008-08-20
SHAANXI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is to overcome the above-mentioned ABS engineering plastic parts adopting CrO 3 / H 2 SO 4 The disadvantages of microetching treatment of microetching liquid on environmental pollution, providing a microetching method for the surface of ABS engineering plastic parts with good microetching effect and little environmental pollution without chromium pollution

Method used

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  • Microetching method on ABS engineering plastic element surface without chromium pollution
  • Microetching method on ABS engineering plastic element surface without chromium pollution
  • Microetching method on ABS engineering plastic element surface without chromium pollution

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Taking the micro-etching treatment on the surface of ABS engineering plastic board as an example, the process steps are as follows:

[0030] 1. Degreasing

[0031] Preparation of degreasing solution: Take 500mL of chemical degreasing liquid concentrate of model SYT8010 and distilled water at a volume ratio of 1:1 to prepare 1L of degreasing liquid. The chemical degreasing liquid concentrate is provided by Shanghai Xinyang Semiconductor Materials Co., Ltd. The degreasing fluid can also be prepared with other types of degreasing fluid or according to the existing formula.

[0032] Degreasing: Immerse the ABS engineering plastic board in the degreasing solution, stir, degrease at 60°C for 5 minutes, remove the dirt on the surface of the ABS engineering plastic board, promote uniform roughening, and improve the bonding force of the coating.

[0033] 2. Swelling

[0034] Preparation of swelling liquid: take 90g of sodium hydroxide and put it into a beaker, add distilled wa...

Embodiment 2

[0046] Taking the micro-etching treatment on the surface of ABS engineering plastic board as an example, the process steps are as follows:

[0047] In step 2 of the swelling process, take 70g of sodium hydroxide and add it to the beaker, add distilled water until the sodium hydroxide dissolves, then add 72g of 1-methyl-2-pyrrolidone and 13g of butyl glycol ether, and dilute to 1L with distilled water , be mixed with swelling liquid, swelling step is identical with the swelling step of embodiment 1. In step 3 of the microetching process, take 20g of MnO 2 Add it into 1L of sulfuric acid aqueous solution with a mass concentration of 77.7% to prepare MnO 2 / H 2 SO 4 Microetching solution: The swollen ABS engineering plastic plate is immersed in the microetching solution, stirred, and microetched at 70°C for 20 minutes. In neutralization reaction step 4, take 12.7g of oxalic acid in a beaker, add distilled water until the oxalic acid is completely dissolved, then add 54.4ml of...

Embodiment 3

[0050] Taking the micro-etching treatment on the surface of ABS engineering plastic board as an example, the process steps are as follows:

[0051] In step 2 of the swelling process, take 100g of sodium hydroxide and add it to the beaker, add distilled water until the sodium hydroxide dissolves, then add 124g of 1-methyl-2-pyrrolidone and 22g of butyl glycol ether, and set the temperature with distilled water. Dissolve to 1L, and prepare swelling solution, the swelling step is the same as that of Example 1. In step 3 of the microetching process, take 50g of MnO 2 Add it into 1L of sulfuric acid aqueous solution with a mass concentration of 77.7% to prepare MnO 2 / H 2 SO 4 Microetching solution: The swollen ABS engineering plastic plate is immersed in the microetching solution, stirred, and microetched at 70°C for 20 minutes. In the neutralization reaction step 4, take 63.6g of oxalic acid in a beaker, add distilled water until the oxalic acid is completely dissolved, then ...

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Abstract

The invention relates to a method for processing microetching of the surface of ABS engineering plastic parts without chromium pollution, which consists of the steps of oil removal, swelling, microetching treatment and neutralization reaction. The steps of microetching treatment are that 20-50g of MnO2 is added into 1L of sulfuric acid aqueous solution with the concentration of 77.7-86.3 percent, thus obtaining MnO2H2SO4 microetching solution; after swelling, the ABS engineering plastic parts are soaked into the microetching solution for stirring and microetching treatment for 10-40 minutes at 60-80 DEG C. The steps of the neutralization reaction are that oxalic acid is added into a beaker and then added with distilled water until the oxalic acid is completely dissolved; sulphuric acid is added into oxalic acid water solution for preparing neutralized solution; in the neutralized solution, the molar concentration of the oxalic acid is 0.1-0.5mol / L and the molar concentration of the sulphuric acid is 1.0-3.0mol / L; after being carried out by microetching treatment, the ABS engineering plastic parts are soaked in the neutralized solution, stirred and have neutralization reaction for 2-10 minutes at 40-60 DEG C and then washed by the distilled water. The method for processing microetching of the surface of ABS engineering plastic parts does not have environmental pollution and can be used for carrying out the microetching treatment on the ABS engineering plastic parts.

Description

technical field [0001] The invention belongs to the technical field of surface electroplating of non-metal material parts, and in particular relates to the micro-etching treatment on the surface of ABS engineering plastic parts. Background technique [0002] At present, non-metallic materials such as plastics, glass, and ceramics are more and more widely used in aerospace, automobiles, communication equipment, and daily necessities. Metallization of plastics can not only increase the strength of plastics, reduce costs, and replace precious non-ferrous metals, but also increase the metallic feel of plastic surfaces and play a special decorative role. [0003] Plastics are not conductive and cannot be directly electroplated on the surface of plastic parts. Before the plastic metallization process, a conductive layer needs to be formed on the surface and then electroplated. Metallization methods on the surface of plastic parts include: vacuum sputtering, physical vapor deposit...

Claims

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Application Information

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IPC IPC(8): C25D5/56
Inventor 王增林李志新
Owner SHAANXI NORMAL UNIV
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