Atmospheric pressure low-temperature plasma continuous treatment apparatus and method for fiber tows

Abstract

The invention discloses an atmospheric pressure low-temperature plasma continuous treatment apparatus and method for fiber tows. The treatment apparatus comprises a low-temperature plasma generating device, a discharging device and a winding device and is characterized in that one side of a feed port of the low-temperature plasma generating device and one side of a discharge port are provided with a plurality of staggered auxiliary guide wheels correspondingly, and fiber tows conveyed from the discharging device are wound sequentially around the staggered auxiliary guide wheels so that the fiber tows are passed through a discharge area of the plasma generating device many times in a reciprocating manner and are then passed to the winding device; the auxiliary guide wheels are metal guide wheels and are grounded through a conductive medium. The treatment apparatus is reasonable in structural design, is operable in atmospheric air, is low in operating cost and high in treatment efficiency and is simple to operate with good safety and reliability, and the size and process setting of a treatment area of the apparatus can be flexibly adjusted according to the specific dimensional and treatment effect requirements of a workpiece.

Description

technical field [0001] The invention relates to a material surface treatment technology, in particular to an atmospheric pressure low temperature plasma continuous tow fiber treatment equipment and a treatment method. Background technique [0002] Carbon fiber or polymer fiber is a new type of material with excellent performance, but the surface of carbon fiber or polymer fiber without surface treatment is smooth, showing hydrophobicity, and the interface with polymer is poor, resulting in low strength of composite material , the superiority of carbon fiber or polymer fiber cannot be fully utilized. The traditional method for surface treatment of carbon fiber or polymer fiber in the domestic industry is to oxidize the surface of carbon fiber or polymer fiber material for a period of time in an acidic solution with a certain electrolyte concentration at a certain temperature, but this treatment The method has the defects of cumbersome operation, intermittent work and serious...

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Problems solved by technology

[0002] Carbon fiber or polymer fiber is a new type of material with excellent performance, but the surface of carbon fiber or polymer fiber without surface treatment is smooth, showing hydrophobicity, and the interface with polymer is poor, resulting in low strength of composite material , the excellent properties of carbon fiber or polymer fiber cannot be fully utilized

The traditional method for surface treatment of carbon fiber or polymer fiber in the domestic industry is to oxidize the surface of carbon fiber or polymer fiber material for a period of time in an acidic solution with a certain electrolyte concentration at a certain temperature, but this treatment The method has the defects of cumbersome operation, intermittent work and serious industrial pollution

[0003] Plasma surface treatment technology is a new material surface treatment technology. Generally, there are two methods used to treat carbon fiber or polymer fiber, one of which is jet flow, that is, nitrogen is used as the surface treatment medium under one atmospheric pressure. The jet plasma generated by the spray gun is used to plasma bombard the moving fibers to increase the surface energy of the material. Compared with the traditional material treatment method, this method has the advantages of clean and pollution-free, convenient operation and sustainable work. At the same time, there are also 1) the treatment area is small, and it is difficult to do a comprehensive treatment around; 2) the material is charged, and there are hidden dangers in safety; 3) the bombardment of the gas makes the fiber bundle loose; the other is the generation of plasma in a vacuum, which is harmful to the Tow fibers are used for surface treatment, but this method is bulky, expensive and expensive, and cannot be processed online quickly

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