Carbon fiber anodic oxidation surface treatment device and surface treatment method

Abstract

The invention discloses a carbon fiber anodic oxidation surface treatment device and a carbon fiber anodic oxidation surface treatment method. The device comprises an electrolysis unit for carbon fiber anodic oxidation surface treatment and a post-electrolysis waste gas treatment unit. The device can flexibly adjust the distance between the dipping rollers in the electrolytic bath and control the electrolysis time, each monofilament is uniformly oxidized, the electrolytic oxidation treatment effect is good, active functional groups containing oxygen, nitrogen and the like are introduced into the surface of the carbon fiber, and the interlaminar shear strength of the carbon fiber composite material is obviously improved; the equipment manufacturing cost is low; operation is easy and convenient, carbon fiber tows with a large number of strands are easy to process, and batch production is suitable; the electrolysis device is provided with an inlet air suction cover, an outlet air suction cover and a movable cover plate, and ammonia waste gas generated by the electrolysis device is extracted by a fan until the post-electrolysis waste gas treatment device provided with a folding cover plate is subjected to acid-base reaction, so that the waste gas is effectively prevented from escaping, the environmental pollution is reduced, and the health of operators is prevented from being injured in the operation process; and safe production is ensured.

Description

technical field [0001] The invention relates to carbon fiber technology, in particular to a carbon fiber anodic oxidation surface treatment device and a surface treatment method. Background technique [0002] The performance of carbon fiber reinforced thermosetting resin composites depends not only on the composition of the material, but also on the quality of the interface between the constituent materials, the surface properties of the carbon fiber, and the transmission mode of the interfacial stress between the carbon fiber and the matrix. The quality of interface bonding directly affects the effect of stress transfer between reinforcement and matrix, thus affecting the macroscopic mechanical properties of composite materials. If the interfacial bond is too weak, the composite material is prone to interfacial debonding failure under stress, and the carbon fiber cannot fully exert its reinforcing effect. If the carbon fiber surface is properly modified, the interlaminar s...

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Problems solved by technology

It can speed up the surface treatment of carbon fiber and reduce the amount of electrolyte used, but it still does not solve the problem that the gas generated during the electrolyte electrolysis process is directly discharged into the air, and it is difficult to meet the pollutant discharge requirements in the production operation area, which does not meet the green environmental protection of carbon fiber industrial production Require

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