Glow plasma generation device applied to surface modification of high polymer material

Abstract

The invention discloses a glow discharge plasma generation device applied to surface modification of a high polymer material. The glow discharge plasma generation device comprises a high-voltage electrode, a high-voltage side insulating medium, a grounding electrode, a grounding side insulating medium and a modified material. The upper surface of the high-voltage side insulating medium is tightlyattached to the high-voltage electrode, and the lower surface of the high-voltage side insulating medium is provided with a plurality of grooves which are tightly arranged in parallel. The grounding electrode is composed of a plurality of conductive wires, and the conductive wires are embedded into the grounding side insulating medium in parallel. The modified material is arranged between the high-voltage side insulating medium and the grounding side insulating medium. The high-voltage side insulating medium and the modified material are in close contact, and the modified material and the grounding side insulating medium are in close contact. The device is based on a tooth-shaped electrode structure, generates high-activity glow discharge plasma under the atmospheric pressure air condition, does not need vacuum and sealing equipment, has very high plasma activity and a dispersed discharge form, and has a very excellent modification effect.

Description

technical field [0001] The invention belongs to the technical field of gas discharge and surface modification of polymer materials, and mainly relates to a glow plasma generating device applied to the surface modification of polymer materials. Background technique [0002] The full name of aramid fiber is "polyphenylene phthalamide". As a new type of high-tech synthetic material, it is also known as the world's three major high-performance fibers together with carbon fiber and polyethylene fiber. It is the composite material with the most development potential. Reinforcement material. It has many advantages such as high mechanical strength, good toughness, light weight, low dielectric constant, high temperature resistance, good wear resistance, and stable chemical properties. Its mechanical strength is 5-6 times that of steel wire, its modulus is 2-3 times that of steel wire or glass fiber, its toughness is 2 times that of steel wire, and its weight is only about 1 / 5 of tha...

AI Technical Summary

Problems solved by technology

However, the nanosecond pulse power supply has problems such as high cost, large loss, and difficulty in increasing power, and it is also difficult to achieve large-scale industrialization

[0013] 2) The activity of plasma is still relatively low, which seriously limits the further improvement of its surface modification effect, and it is difficult to meet the requirements of aramid fiber in high-end application fields

However, a strong electric field will further increase the intensity of the development of electron avalanche, which will further increase the difficulty of glow discharge generation.

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