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Method for quickly and efficiently improving anti-mildew and antibacterial properties of aramid fibers

A kind of anti-mildew and antibacterial, aramid fiber technology, applied in textile and papermaking, fiber processing, physical processing and other directions, can solve the problems of reducing product quality, reducing tensile strength of aramid fiber, complex process, etc., to speed up processing speed, reduce production Cost, simple process effect

Active Publication Date: 2016-01-27
GUIZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The aramid structure has two layers of skin and core. The high strength and high modulus of aramid fiber is mainly determined by the inner high crystallization core layer. In the application process, especially in some humid or outdoor exposure application environments, aramid fiber It is easy to mold in the material, and when a large amount of mold gathers, it will cause damage to the aramid fiber filament, thereby reducing the quality of the product it is applied to
Therefore, when people produce aramid fibers, they need to be treated with mildew and antibacterial treatment. In the traditional treatment method, one is to add antibacterial agents during the spinning process of aramid fibers, so that the antibacterial agents can be integrated into the aramid fibers. The process of the method is relatively complicated and the cost is high. At the same time, because the antibacterial agent exists inside the aramid fiber, it will destroy the regularity of the molecules, affect the crystallization of the aramid fiber, and greatly reduce the tensile strength of the aramid fiber; The first is to graft antibacterial agents on the surface of aramid fibers through chemical reactions, but this method requires a long processing time and high cost. Multi-active groups, when the antibacterial agent is grafted onto the aramid fiber, this reaction process will have a great impact on the performance of the aramid fiber, and also greatly reduce the tensile strength of the aramid fiber

Method used

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  • Method for quickly and efficiently improving anti-mildew and antibacterial properties of aramid fibers
  • Method for quickly and efficiently improving anti-mildew and antibacterial properties of aramid fibers
  • Method for quickly and efficiently improving anti-mildew and antibacterial properties of aramid fibers

Examples

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Embodiment 1

[0043] A method for rapidly and efficiently improving the anti-mold and antibacterial properties of aramid fibers, comprising the following steps:

[0044] (1) Cleaning: clean the aramid fiber with anhydrous ethanol solution, and dry the cleaned aramid fiber at 60-70°C for later use;

[0045] (2) prepare dipping solution: according to the mass percentage=M of zinc chloride ZnCl / (M ZnCl+ m 乙醇 ), the zinc chloride powder is put into dehydrated alcohol, and the mass percentage of preparing zinc chloride is 20%-30% zinc chloride ethanol solution, for subsequent use;

[0046] (3) Impregnation treatment: put the aramid fiber dried in step (1) into the mixed solution of zinc chloride and ethanol prepared in step (2) and impregnate it, and simultaneously use an ultrasonic processor to perform ultrasonic treatment for 4-6 minutes ;

[0047] (4) Cleaning and drying: wash the aramid fiber treated in step (3) with deionized water, and then dry it at 60-70°C.

Embodiment 2

[0049] A method for rapidly and efficiently improving the anti-mold and antibacterial properties of aramid fibers, comprising the following steps:

[0050] (1) Cleaning: Clean the aramid fibers with anhydrous ethanol solution, and dry the cleaned aramid fibers at 50-60°C for later use;

[0051] (2) prepare dipping solution: according to the mass percentage=M of zinc chloride ZnCl / (M ZnCl+ m 乙醇 ), the zinc chloride powder is put into dehydrated alcohol, and the mass percentage of preparing zinc chloride is 5%-20% zinc chloride ethanol solution, for subsequent use;

[0052] (3) Impregnation treatment: put the aramid fiber dried in step (1) into the mixed solution of zinc chloride and ethanol prepared in step (2) for immersion, and simultaneously use an ultrasonic processor to perform ultrasonic treatment for 6-15 minutes ;

[0053] (4) Cleaning and drying: wash the aramid fiber treated in step (3) with deionized water, and then dry it at 50-60°C.

Embodiment 3

[0055] A method for rapidly and efficiently improving the anti-mold and antibacterial properties of aramid fibers, comprising the following steps:

[0056](1) Cleaning: clean the aramid fiber with anhydrous ethanol solution, and dry the cleaned aramid fiber at 70-80°C for later use;

[0057] (2) prepare dipping solution: according to the mass percentage=M of zinc chloride ZnCl / (M ZnCl+ m 乙醇 ), the zinc chloride powder is put into dehydrated alcohol, and the mass percentage that prepares zinc chloride is the zinc chloride ethanol solution of 30%-50%, for subsequent use;

[0058] (3) Impregnation treatment: put the aramid fiber dried in step (1) into the mixed solution of zinc chloride and ethanol prepared in step (2) and impregnate it, and simultaneously use an ultrasonic processor to perform ultrasonic treatment for 1-4 minutes ;

[0059] (4) Cleaning and drying: wash the aramid fiber treated in step (3) with deionized water, and then dry it at 70-80°C.

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Abstract

The invention discloses a method for quickly and efficiently improving anti-mildew and antibacterial properties of aramid fibers. The method comprises steps as follows: cleaning the aramid fibers with an ethanol solution, and drying cleaned aramid fibers for use; preparing a zinc chloride ethanol solution for use; placing the aramid fibers dried in Step (1) into the zinc chloride ethanol solution prepared in Step (2) for impregnation, and meanwhile, performing ultrasonic processing with an ultrasonic processor; cleaning the aramid fibers processed in Step (3) and then drying the aramid fibers. The method has the characteristics of simple technology, low cost and short consumed time, and the processed aramid fibers have the characteristics of obvious antibacterial effect and lower influence on tensile strength.

Description

technical field [0001] The invention relates to a method for improving the anti-mold and antibacterial properties of aramid fibers, in particular to a method for rapidly and efficiently improving the anti-mold and anti-bacterial properties of aramid fibers. Background technique [0002] Aramid is a new type of high-tech synthetic fiber with excellent properties such as ultra-high strength, high modulus, high temperature resistance, acid and alkali resistance, light weight, insulation, anti-aging, and long life cycle. It is widely used in composite materials and bulletproof products. , building materials, special protective clothing, electronic equipment and other fields are often used in the manufacture of ropes, ribbons, fabrics, reinforced cables and optical cables, cables for ships, and packing for sealing and other products. The aramid structure has two layers of skin and core. The high strength and high modulus of aramid fiber is mainly determined by the inner high crys...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M10/06
Inventor 鲁圣军王君朱大勇罗筑王彩红
Owner GUIZHOU UNIV