Chemical fibers grafted with quaternary ammonium group by plasma method and grafting method thereof

A quaternary ammonium group, chemical fiber technology, used in fiber processing, textiles and papermaking, etc., to achieve the effects of less pollution, simple equipment and high efficiency

Inactive Publication Date: 2008-03-26
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present inventor once reported the patent (CN 200510025901.7) of chemical fiber, yarn and its fabric of corona activation grafted hydrophilic group and the textile (CN200510025904.0) grafted with cationic quaternary ammonium group. Patent report on grafting cationic groups directly to chemical fibers by corona discharge technology

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Let the polypropylene filament pass through a corona discharge field with a voltage of 7500 volts and a power of 25 watts at a speed of 30 meters per minute, the distance between the discharge electrodes is 8 mm, and the processing time is about 6 seconds, so that free radicals are generated on the polypropylene filament Or activated by ions. Then, the polypropylene filament after the corona discharge treatment was put into an acrylic acid-N-trimethylethyl ammonium chloride aqueous solution with a temperature of 50° C. and a weight concentration of 15%, and reacted for 20 minutes. Then the polypropylene filament yarn is wound out, the excess solution is removed, washed with water, oiled, and dried to obtain modified acrylic filament grafted with acrylic acid-N-trimethylethyl ammonium chloride. The actual measurement of the acrylic-N-trimethylethyl ammonium chloride grafting rate of the modified propylene filament yarn was 12.4%.

Embodiment 2

[0029] Let the polyester staple fiber strip pass through a corona discharge field with a voltage of 12000 volts and a power of 50 watts at a speed of 12 meters per minute, the distance between the discharge electrode plates is 40 mm, and the processing time is about 60 seconds. The polyester staple fiber strip is on the discharge electrode plate. Pass in time to activate free radicals or ions on the polyester fiber. Then, the polyester staple fiber strip after the corona discharge treatment was put into an aqueous solution of diallyl dimethyl ammonium chloride at a temperature of 75° C. and a weight concentration of 25%, and reacted for 30 minutes. Then take out the polyester staple fiber strip by winding, remove the excess solution, wash with water, oil, and dry to obtain the modified polyester staple fiber grafted with bisallyl dimethyl ammonium chloride. The actual measurement of the grafting rate of bisallyl dimethyl ammonium chloride of modified polyester staple fiber is 21.2...

Embodiment 3

[0031] Let the nylon filament pass through a corona discharge tube with a voltage of 10,000 volts and a power of 40 watts at a speed of 6 meters per minute, the distance between the discharge electrodes is 5 mm, and the treatment time is about 4 minutes, so that free radicals or ions are generated on the surface of the nylon filament And activated. Next, the nylon filament after the corona discharge treatment was put into an acrylic acid-N-trimethylpropane ammonium chloride aqueous solution with a temperature of 55° C. and a weight concentration of 10%, and reacted for 18 minutes. Then the nylon filament is wound out, the excess solution is removed, and then washed with water, oiled, and dried to obtain a modified nylon filament grafted with acrylic acid-N-trimethylpropane ammonium chloride. The actual measurement of the acrylic-N-trimethylpropyl ammonium chloride graft rate of the modified nylon filament was 16.3%.

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Abstract

The present invention is one kind of chemical fiber with plasma process grafted quaternary ammonium group and its grafting process. The process includes treating chemical fiber in a corona discharge electric field of 3000-12000 V voltage and 10-500 W power for the surface of the fiber to produce free radical or ion group, soaking the fiber in water solution of double bond-containing quaternary ammonium monomer for grafting polymerization reaction to graft cationic group, eliminating un-reacted monomer, washing, oiling and drying to obtain modified chemical fiber containing cationic quaternary ammonium group.

Description

Technical field: [0001] The invention is a chemical fiber grafted with a quaternary ammonium group, which is obtained by a method of grafting a cationic quaternary ammonium group on the fiber by plasma activation. Background technique: [0002] Most clothing and household textiles made of natural fibers or conventional chemical fibers are non-sterilizing. With the continuous improvement of people's living standards, people have higher and higher requirements for clothing and home textiles in terms of beauty, comfort and hygiene. It is hoped that these textiles can have anti-bacterial and sterilizing effects. As there are many antibacterial methods for textiles, antibacterial substances are added during the production of chemical fibers, and antibacterial substances are added in a finishing method. There are also many kinds of antibacterial substances, useful for metal ions, such as silver, copper, zinc, etc., and useful for various medical drugs. [0003] Cationic quaternary ammo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M14/26
Inventor 于伟东章悦庭章倩姚江薇
Owner DONGHUA UNIV
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