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Surface treating method for carbon fiber

A surface treatment and carbon fiber technology, which is applied in the direction of fiber chemical characteristics, rayon chemical post-treatment, and liquid/gas/vapor removal with squeeze rollers, etc. It can solve the problems of carbon fiber fluff, unsatisfactory mechanical properties, and high energy consumption. problems, achieve the effect of improving the mechanical performance index, reducing the appearance of fuzz, and reducing energy consumption

Inactive Publication Date: 2008-08-20
WEIHAI TUOZHAN FIBER
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Problems solved by technology

[0002] As we all know, carbon fiber manufacturers at home and abroad have to go through the following steps when surface treating carbon fibers (as shown in Figure 1): Electrolytic surface treatment 1—washing 2—drying 3—sizing 4—drying 5—collection Volume 6, the drying process is completed in the drying furnace, this surface treatment method, the carbon fiber produced is easy to fluff, the mechanical properties are not ideal, and the energy consumption in the production process is more

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  • Surface treating method for carbon fiber

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Embodiment Construction

[0010] In Fig. 2, the process steps of the present invention are: electrolytic surface treatment 1—water washing 2—rubber roller extrusion 7—sizing 4—drying 5—winding 6.

[0011] The main purpose of electrolytic oxidation treatment 1 is to increase the interlayer shear strength of carbon fiber. The equipment used in electrolytic surface treatment 1 is mainly composed of electrolytic tank, driving roller, DC power supply and conductivity meter. A certain concentration of electrolyte (such as Ammonium carbonate or ammonium bicarbonate or ammonium dihydrogen carbonate, etc.), the working principle is to use the conductivity of carbon fiber as the anode, and the driving roller as the cathode to perform anodic electrolytic oxidation treatment, and then enter the washing process.

[0012] The purpose of water washing 2 is mainly to remove the residual electrolyte on the surface and inside of the carbon fiber. The immersion process plus spray washing is adopted. The equipment used for...

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Abstract

The invention relates to a surface treatment method of carbon fiber and pertains to the field of organic chemistry. The technical steps of the method are electrolysis surface treatment, water washing, sizing, drying and winding. Compared with the carbon fiber produced by the traditional surface treatment technique, the method of the invention has the advantages that the fuzz of the exterior of the carbon fiber is obviously reduced, the mechanical property indexes are enhanced and the energy consumption is reduced.

Description

technical field [0001] The invention relates to the field of organic chemistry, and belongs to the manufacturing technology of polymer materials, in particular to a surface treatment method in the production process of carbon fibers. Background technique [0002] As we all know, carbon fiber manufacturers at home and abroad have to go through the following steps when surface treating carbon fibers (as shown in Figure 1): Electrolytic surface treatment 1—washing 2—drying 3—sizing 4—drying 5—collection Volume 6, the drying process is completed in a drying furnace. With this surface treatment method, the produced carbon fibers tend to fluff, have unsatisfactory mechanical properties, and consume more energy during the production process. Contents of the invention [0003] In order to overcome the deficiencies of the prior art, the object of the present invention is to provide a method for surface treatment of carbon fibers, which can significantly reduce the appearance of the...

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Application Information

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IPC IPC(8): D01F11/16D06B15/02C08K9/00C08K7/06
Inventor 高长星李松峰
Owner WEIHAI TUOZHAN FIBER