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Deplating process for ABS plastic surface plating layer

An ABS plastic and coating technology, which is applied in the field of ABS plastic surface coating stripping process, can solve the problems of long process time, long time required, and less processing capacity for plastic stripping, and achieves low stripping cost and good adsorption capacity. , the effect of fast adsorption

Inactive Publication Date: 2020-09-25
浙江元力再生资源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still the following problems: this technology first uses the stripping solution to dissolve and leach once, and then uses ion adsorption to the leaching solution for the first stripping to absorb metal ions and then uses it as the stripping solution for the second stripping, and then uses it as the stripping solution for the secondary stripping. In the process of ion adsorption of the final leaching solution, more time is required, resulting in longer process time for the entire plastic deplating process, less processing capacity per unit time, and higher cost

Method used

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  • Deplating process for ABS plastic surface plating layer
  • Deplating process for ABS plastic surface plating layer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Carboxylation of nano-graphite: Weigh 12kg of nano-graphite and place it in the reaction chamber of the plasma equipment, and evacuate the reaction chamber to 2×10 -4 Pa, then heated to 100°C, and nitrogen gas was introduced into the reaction chamber until the gas pressure in the reaction chamber reached 2Pa, the radio frequency power was turned on, and the reaction was performed for 10 minutes under the conditions of the reaction power of the radio frequency power supply of 500W and the frequency of the radio frequency power supply of 400KHz. After the reaction was completed, Take out the nano-graphite, then disperse the nano-graphite in 900kg of ether solution, then add 8kg of succinic anhydride, react at a constant temperature of 25°C for 2h, suction filter to obtain a solid powder, transfer the solid powder into a constant temperature box at 45°C Dry under vacuum for 3 hours to obtain carboxylated nano-graphite.

[0029] Preparation of modified chitosan: Take chitos...

Embodiment 2

[0037] Carboxylation of nano-graphite: Weigh 14kg of nano-graphite and place it in the reaction chamber of the plasma equipment, and evacuate the reaction chamber to 1.8×10 -3 Pa, then heated to 200°C, and nitrogen gas was introduced into the reaction chamber until the gas pressure in the reaction chamber reached 2.5Pa, the radio frequency power supply was turned on, and the reaction power was 1000W at the radio frequency power supply, and the radio frequency power supply frequency was 450MHz. , take out the nano-graphite, and then disperse the nano-graphite in 900kg of ether solution, then add 10kg of succinic anhydride, react at a constant temperature of 25°C for 2h, obtain a solid powder by suction filtration, transfer the solid powder into a constant temperature box at 45 It was dried under vacuum for 3.5 hours at °C to obtain carboxylated nano-graphite.

[0038] Preparation of modified chitosan: Take chitosan and dissolve it in acetic acid solution, add span-80 and stir f...

Embodiment 3

[0046] Carboxylation of nano-graphite: Weigh 16kg of nano-graphite and place it in the reaction chamber of the plasma equipment, and evacuate the reaction chamber to 3×10 -3 Pa, then heated to 300°C, and nitrogen was introduced into the reaction chamber until the gas pressure in the reaction chamber reached 3Pa, the radio frequency power supply was turned on, and the reaction power was 1500W and the frequency of the radio frequency power supply was 500KHz. The reaction was 20min. After the reaction was completed, Take out the nano-graphite, then disperse the nano-graphite in 900kg of ether solution, then add 12kg of succinic anhydride, react at a constant temperature of 25°C for 2h, and obtain a solid powder by suction filtration, transfer the solid powder into a constant temperature box at 45°C Dry under vacuum for 4h to obtain carboxylated nano-graphite.

[0047] Preparation of modified chitosan: Take chitosan and dissolve it in acetic acid solution, add span-80 and stir for...

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Abstract

The invention relates to the technical field of resource environment-friendly recovery, and discloses a deplating process for an ABS plastic surface plating layer. The deplating process includes the following steps of S1, cleaning plating layer plastic, wherein the plating layer plastic is put into isopropyl alcohol to be stirred and cleaned and is then thoroughly spray-washed with deionized waterand dried; S2, performing dissolving and leaching, wherein the cleaned plating layer plastic is completely immersed in deplating liquid to be evenly stirred, then a negative electrode plate and a positive electrode plate are inserted into the deplating liquid and switched on with an alternating current, and deplating is performed for 1-2 h under ultrasonic stirring; and S3, taking out a deplatedplastic piece to be rinsed with clear water and dried so as to complete deplating of the metal plating layer plastic. By means of the deplating process, the deplating procedure of the ABS plastic surface plating layer can be simplified, the time of the deplating process can be shortened, and efficiency is higher.

Description

technical field [0001] The invention relates to the technical field of environmental protection recycling of resources, in particular to a deplating process of an ABS plastic surface coating. Background technique [0002] ABS plastic is a terpolymer of acrylonitrile (A)-butadiene (B)-styrene (S). By adjusting the content of B component in ABS plastic, it can have good electroplating performance. The metal coating of ABS electroplating parts is mainly divided into two layers, the bottom layer of copper and the surface layer of nickel. After the ABS plastic surface is covered with a layer of metal, it not only has a metallic texture and luster, but also has a greatly extended service life. Therefore, in recent decades, the plastic electroplating industry has developed rapidly, and the types of plastic electroplating products have risen linearly. With the continuous development of plastic electroplating technology and technology, the application field of ABS electroplating par...

Claims

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Application Information

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IPC IPC(8): C25F5/00
CPCC25F5/00
Inventor 祝俊健叶鹏金权黄威
Owner 浙江元力再生资源有限公司
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