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Device for plating metal by multiple beams of continuous long carbon fibers simultaneously and method thereof

A technology of long carbon fiber and electroplating metal, applied in the direction of electrolysis process, electrolysis components, cells, etc., can solve the problems of inconsistent pressure, different contact resistance, and inability to obtain a uniform electroplating layer of multiple bundles of carbon fibers, and achieve the solution of uneven thickness of the coating uniformity, increase production efficiency, and avoid fiber entanglement

Inactive Publication Date: 2012-10-10
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for the simultaneous electroplating of multiple bundles of carbon fibers, this material cannot be used. This is because the rubber material will deform during the immersion in the plating solution, resulting in inconsistent pressure on multiple bundles of carbon fibers, that is, the contact resistance is different, and finally to a uniform plating layer

Method used

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  • Device for plating metal by multiple beams of continuous long carbon fibers simultaneously and method thereof
  • Device for plating metal by multiple beams of continuous long carbon fibers simultaneously and method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] 16 bundles of continuous long carbon fibers (polyacrylonitrile base / bundle size 12k / single filament diameter 6-8μm) enter between the metal conductive roller and the pressure roller at the front end of each electroplating tank at the same time after degumming and cleaning, that is, the metal conducts electricity Above the roller is a 36 cm plastic-wrapped sponge press roller with the same length as the metal conductive roller. The diameter of the plastic core roller is 6 cm, and the thickness of the outer wrapped sponge layer is 1.0 cm. Each bundle of long carbon fibers It is powered by a DC power supply alone, and the following plating solution formulations are used in the two-stage electroplating tanks:

[0036] Copper sulfate pentahydrate 35g / L, potassium sodium tartrate 10g / L, sodium hydroxide 20g / L, anhydrous citric acid 25g / L;

[0037] Electrodeposition conditions are: pH=9;

[0038] 16 bundles of carbon fibers have a current range of 2.5-3.6 amps;

[0039] temp...

Embodiment 2

[0044] 24 bundles of continuous long carbon fibers (pitch base / bundle size 6k / single filament diameter 6-8μm) enter between the metal conductive roller and the pressure roller at the front of the electroplating tank at the same time after degumming and cleaning, that is, above the metal conductive roller is a A plastic core roller with a length of 28 cm (basically the same length as the metal conductive roller) is wrapped with a sponge layer on the outer layer. The diameter of the plastic core roller is 4 cm, and the thickness of the outer sponge layer is 1.5 cm. Each bundle of carbon fiber Powered solely by a DC power supply. The formula of the plating solution in the electroplating tank is: nickel sulfate hexahydrate 200g / L, sodium chloride 8g / L, boric acid 25g / L; sodium sulfate 18g / L; magnesium sulfate 25g / L; sodium dodecylsulfonate 0.1mL / L. The electrodeposition conditions are: pH=5.0; the current range of 24 bundles of carbon fibers is 1.2-1.8 amperes; temperature=25°C;...

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Abstract

The invention discloses a method for plating metal by multiple beams of continuous long carbon fibers simultaneously. At least 16 beams of continuous carbon fibers are connected in parallel, the spacing distance of the beams is 0.5-3 cm, and after being degummed and cleaned, all the continuous long carbon fibers are soaked in a plating bath for surface plating synchronously through two stages of electrolytic deposition, and are washed and dried after the second stage of surface plating; the continuous long carbon fibers enter and pass by a metal electric conduction roller at the front end of each stage of plating bath at the same time, the electric contact conditions of the continuous long carbon fibers are consistent, and the continuous long carbon fibers proceed at the same linear speed; at the same time the metal electric conduction roller is connected with a cathode of a power source to realize the connection of the continuous long carbon fibers and the cathode; and each beam of long carbon fiber is powered up by an independent power source, the current of the long carbon fiber is regulated and controlled independently, the problem of fiber winding caused by the nonuniform speed can be avoided, continuous plating is ensured, and the production efficiency of carbon fiber plating is improved.

Description

technical field [0001] The invention belongs to the technical field of carbon fiber surface modification, and in particular relates to a device and a method for simultaneously electroplating metal with multiple bundles of continuous carbon fibers. Background technique [0002] The metallization of carbon fiber can not only improve the interfacial compatibility with the metal matrix material, but also be used to strengthen the polymer and improve the electrical conductivity of the polymer, thereby preparing plastic products with electrical conductivity, which can be used in antistatic, shielding and / or Or absorbing electromagnetic waves and so on have a wider application prospect. Therefore, the metallization of carbon fiber has attracted much attention. Practice has proved that due to the certain conductivity of carbon fiber, the electrodeposition of carbon fiber (commonly known as "electroplating") is the most effective metallization technology, which can be applied to lar...

Claims

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Application Information

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IPC IPC(8): C25D7/06C25D21/12C25D19/00
Inventor 万怡灶罗红林
Owner TIANJIN UNIV
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