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A kind of preparation method of antibacterial polyacrylonitrile fiber

A polyacrylonitrile fiber and cellulose technology, applied in the direction of fiber chemical characteristics, cellulose/protein conjugated artificial filament, cellulose/protein artificial filament chemical post-treatment, etc., to achieve the effect of stabilizing antibacterial properties

Inactive Publication Date: 2021-12-21
苏州峰佳达化纤纺织有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem mainly solved by the present invention is to provide a preparation method of antibacterial polyacrylonitrile fiber, which can solve the above-mentioned problems existing in the existing antibacterial modified acrylonitrile fiber

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The invention discloses a preparation method of antibacterial polyacrylonitrile fiber, comprising the following steps:

[0023] (1) Natural cellulose fiber dissolution: under the protection of nitrogen, add 15 parts of chitin fiber and 20 parts of bamboo fiber to the dimethylacetamide solution, heat to 100°C under the condition of reflux condensation, and activate for 2 hours; then stop Heat and cool down to 80°C, quickly add a certain amount of anhydrous LiCl powder, first stir at a rate of 500r / min for 3h, then stir at a rate of 300r / min and cool to room temperature, then continue to stir at a rate of 200r / min for 2h; Finally, ultrasonic defoaming can produce a uniform and stable cellulose spinning solution;

[0024] Wherein, the mass ratio of the dimethylacetamide and lithium chloride is 2:1; the mass of the first cellulose solution (the total mass of dimethylacetamide and lithium chloride) is the chitin 5 times the total mass of fiber and bamboo fiber;

[0025] (2...

Embodiment 2

[0031] The invention discloses a preparation method of antibacterial polyacrylonitrile fiber, comprising the following steps:

[0032] (1) Natural cellulose fiber dissolution: under the protection of nitrogen, add 20 parts of chitin fiber and 25 parts of bamboo fiber to the dimethylacetamide solution, heat to 120°C under the condition of reflux condensation, and activate for 1.5h; then Stop heating and cool down to 90°C, quickly add a certain amount of anhydrous LiCl powder, first stir at 800r / min for 2h, then stir at 500r / min and cool to room temperature, then continue to stir at 300r / min for 1h ;Finally, ultrasonic defoaming is used to obtain a uniform and stable cellulose spinning solution;

[0033] Wherein, the mass ratio of the dimethylacetamide and lithium chloride is 3:1; the mass of the first cellulose solution (the total mass of dimethylacetamide and lithium chloride) is the chitin 10 times the total mass of fiber and bamboo fiber;

[0034] (2) Polyacrylonitrile fib...

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PUM

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Abstract

The invention discloses a preparation method of antibacterial polyacrylonitrile fiber, which comprises the following steps: (1) dissolving natural cellulose fiber; (2) dissolving polyacrylonitrile fiber; (3) configuring spinning stock solution; (4) electrospinning Silk treatment; (5) Antibacterial post-treatment. The invention discloses a method for preparing antibacterial polyacrylonitrile fibers, which comprises preparing spinning stock solution from natural cellulose fibers with antibacterial properties, polyacrylonitrile fibers and natural antibacterial plant extracts, and preparing antibacterial antibacterial properties by electrospinning. Antibacterial fiber, and then use the chelation between natural cellulose fiber and copper ions to firmly connect a layer of copper ions on the surface of the fiber, so that the surface of the fiber forms a stable antibacterial layer, and the obtained antibacterial polyacrylonitrile fiber has Stable antibacterial properties.

Description

technical field [0001] The invention relates to the field of polyacrylonitrile fibers, in particular to a preparation method of antibacterial polyacrylonitrile fibers. Background technique [0002] Polypropylene wool is fluffy in appearance, soft in feel, has good light resistance, weather resistance, elasticity and warmth retention, and is known as "artificial wool". Among the raw materials used in wool spinning and artificial fur in my country, polypropylene nitrile occupies the most important position. The excellent properties of polypropylene wax make it widely used in clothing, apparel, and industrial fields. Polyacrylonitrile fiber can be spun purely or blended with natural fibers according to the requirements of different uses, or woven into blankets, carpets, etc., and can also be blended with cotton, rayon, and other synthetic fibers to be woven into various clothing and indoor products. [0003] The existing conventional preparation methods of antibacterial polya...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F8/02D01F8/08D01F8/18D01F1/10D01F11/02D01F11/06
CPCD01F8/02D01F8/08D01F8/18D01F1/103D01F11/02D01F11/06
Inventor 谢建江
Owner 苏州峰佳达化纤纺织有限公司