Normal-pressure low-temperature plasma treater for modifying fiber surface

A technology of low-temperature plasma and fiber modification, which is applied in fiber treatment, physical treatment, textile and paper making, etc., to achieve the effects of avoiding metal deposition pollution, appropriate temperature and energy, and improving wettability

Inactive Publication Date: 2003-06-04
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unfortunately, there is no report on the use of dielectric barrier discharge to generate low-temperature plasma at atmospheric pressure and to effectively modify the surface of fiber materials.

Method used

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  • Normal-pressure low-temperature plasma treater for modifying fiber surface
  • Normal-pressure low-temperature plasma treater for modifying fiber surface

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] use figure 1 The atmospheric-pressure low-temperature plasma processor in the process continuously treats polyester (polyethylene terephthalate PET) woven fabrics. The two electrodes are brass, and the silicon oxide plate is used as the blocking medium. The upper and lower electrodes add about 10KHz AC high voltage, argon gas or argon gas mixed with air is passed into the discharge slit between the upper and lower parts of the processor as the discharge gas, and a blue-purple bright glow is produced in the discharge space, and the observation Less than arc flash and spark discharge. The larger the argon flow, the brighter the glow in the discharge space and the stronger the discharge. The distance between the slits is 3 mm.

[0038]The polyester cloth is placed statically in the discharge slit, or slowly passes through the discharge slit several times. Under the condition of stable discharge, regardless of static treatment or continuous treatment, under the same con...

Embodiment 2

[0044] use figure 1 The density of plasma generation and processor opposite is 170g / m 2 The PBT (polybutylene terephthalate) meltblown nonwovens (meltblown nonwovens) are processed statically or continuously. Roughly the same method as Example 1 is processed, but the processing conditions are different. In the case of stable discharge, there was no change in the appearance of the sample after treatment, and no thermal damage or ablation or perforation caused by arc and spark discharge was observed.

[0045] The PBT melt-blown non-woven fabric before and after treatment takes a sample with a diameter of 5 cm. Before the treatment, the non-woven fabric sample is flat on the surface of a yellow 5% potassium dichromate solution, and the non-woven fabric floats on the water surface without wetting within 20 seconds; The treated sample was immediately wetted in less than 1 second, and the white nonwoven turned yellow.

[0046] When the processing conditions are not good, the phe...

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PUM

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Abstract

The present invention relates to one kind of medium-blocked discharge treater producing normal pressure low temperature plasma for fiber material modification. The treater consists of four parts including one pair of cooled planar discharge electrodes; two reaction gas ducts and two gas guide plates. The treater produces homogeneous low temperature plasma at atmosphere while avoiding interpolar arc light and spark discharge. Fiber material set in or passing through the discharge area is treated by the normal pressure and low temperature plasma to obtain effective modification. After the said treatment, the surface moistening performance and dyeing performance are improved obviously.

Description

Technical field: [0001] The invention relates to a low-temperature plasma treatment device at normal pressure. More precisely, the device can avoid arc and spark discharge between electrodes, and generate uniform plasma under atmospheric pressure conditions by dielectric barrier discharge, so that it can be statically or continuously passed through The fiber material in the discharge area is treated with normal-pressure uniform plasma to obtain effective surface modification, and the hydrophobic chemical fiber material is modified into a hygroscopic material, and the dyeability of the material is also significantly improved. It belongs to the field of fiber modification. Background technique: [0002] Dielectric barrier discharge is a method of generating low-temperature plasma under atmospheric pressure conditions. It is widely used in ozone synthesis, air and water purification, making ultraviolet light sources, and exciting gas lasers. For example: ZL99213572.9 and CN991...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M10/00
Inventor 邱高
Owner DONGHUA UNIV
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