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Antibacterial meta-aramid fiber and preparation method thereof

A technology of aramid fiber and antibacterial agent, which is applied in the field of antibacterial meta-aramid fiber and its preparation, which can solve the problems of unsatisfactory antibacterial performance and unchanged antibacterial performance of meta-aramid fiber, so as to maintain permanent antibacterial ability and improve antibacterial efficiency , The effect of facilitating mass production

Pending Publication Date: 2022-01-28
YANTAI TAYHO ADVANCED MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problems existing in the prior art, the present invention provides an antibacterial meta-aramid fiber and a preparation method thereof, thereby solving the problem of unsatisfactory antibacterial performance of the meta-aramid fiber, and at the same time, the antibacterial performance remains unsatisfactory during the washing process of fabrics. Change

Method used

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  • Antibacterial meta-aramid fiber and preparation method thereof
  • Antibacterial meta-aramid fiber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] Choose the mesoporous material MCM-41 with a pore size of 10nm and a specific surface area of ​​500m 2 / g, disperse 50gMCM-41 in 500g mass concentration of 1% silver nitrate solution, immerse MCM-41 in the silver nitrate solution for 2h at 50°C, then wash with water for 3 times, filter to obtain filter cake, filter The cake was vacuum-dried at 60° C. for 6 hours to obtain a mesoporous material loaded with silver ions. The mesoporous material loaded with silver ions is calcined in a muffle furnace at 400°C for 2 hours, and becomes powder after cooling. The powder is dispersed in water, and 50 g of hydrazine hydrate with a mass concentration of 3.5% is added dropwise. After fully reacting, it is washed with water and filtered. Dry at 60° C. for 6 hours to obtain silver-loaded antimicrobial agent powder of mesoporous material.

[0068] Add 2.725mol m-phenylenediamine to 2.5kg N,N-dimethylacetamide, stir and dissolve, then cool the reaction system to -5°C, add isophthaloyl...

Embodiment 2

[0070] Choose the mesoporous material SBA-15 with a pore size of 10nm and a specific surface area of ​​1000m 2 / g, 50g SBA-15 is dispersed in 500g mass concentration and is in the silver nitrate solution of 1%, under the condition of 50 ℃, in the silver nitrate solution, SBA-15 is soaked 2h, carry out 3 times of water washing afterwards, obtain filter cake after filtering, filter The cake was vacuum-dried at 60° C. for 6 hours to obtain a mesoporous material loaded with silver ions. The mesoporous material loaded with silver ions is calcined in a muffle furnace at 400°C for 2 hours, and becomes powder after cooling. The powder is dispersed in water, and 50 g of hydrazine hydrate with a mass concentration of 3.5% is added dropwise. After fully reacting, it is washed with water and filtered. Dry at 60° C. for 6 hours to obtain silver-loaded antimicrobial agent powder of mesoporous material.

[0071] Add 2.725mol m-phenylenediamine to 2.5kg N,N-dimethylacetamide, stir and dissol...

Embodiment 3

[0073] Choose the mesoporous material CMK-3 with a pore size of 10nm and a specific surface area of ​​1000m 2 / g, disperse 50g CMK-3 in 500g mass concentration of 1% silver nitrate solution, immerse CMK-3 in silver nitrate solution for 2h at 50°C, wash with water 3 times afterwards, filter to obtain filter cake, filter The cake was vacuum-dried at 60° C. for 6 hours to obtain a mesoporous material loaded with silver ions. The mesoporous material loaded with silver ions is calcined in a muffle furnace at 400°C for 2 hours, and becomes powder after cooling. The powder is dispersed in water, and 50 g of hydrazine hydrate with a mass concentration of 3.5% is added dropwise. After fully reacting, it is washed with water and filtered. Dry at 60° C. for 6 hours to obtain silver-loaded antimicrobial agent powder of mesoporous material.

[0074] Add 2.725mol m-phenylenediamine to 2.5kg N,N-dimethylacetamide, stir and dissolve, then cool the reaction system to -5°C, add isophthaloyl ch...

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Abstract

The invention discloses an antibacterial meta-aramid fiber and a preparation method thereof. The preparation method comprises the following steps: dispersing a mesoporous material in a silver nitrate solution, heating and dipping, washing with water, filtering and drying to obtain a mesoporous material loaded with silver ions; calcining the silver ion-loaded mesoporous material, cooling, dispersing in water, adding a reducing agent, washing, filtering, and drying to obtain the mesoporous material silver-loaded antibacterial agent. carrying out polymerization reaction on m-phenylenediamine and isophthaloyl chloride to generate a polyisophthaloyl m-phenylenediamine polymer solution; adding a mesoporous material silver-loaded antibacterial agent into a polyisophthaloyl metaphenylene diamine polymer solution, uniformly mixing, and carrying out solidification forming, water washing, drying, hot stretching and heat setting to obtain the antibacterial meta-aramid fiber.

Description

technical field [0001] The invention belongs to the technical field of meta-aramid fiber and relates to an antibacterial meta-aramid fiber and a preparation method thereof. Background technique [0002] Meta-aramid (full name poly-m-phenylene isophthalamide, also known as aramid 1313), is an organic fiber synthesized from isophthaloyl chloride and m-phenylene diamine, which has high temperature resistance, intrinsic flame retardancy, Excellent properties such as electrical insulation and chemical corrosion resistance; it is widely used in high-temperature environmental protection filter materials, military and police safety protective clothing, industrial safety protective clothing, high-end electrical insulation materials, aircraft and high-speed train stress-bearing parts, industrial textiles and other fields. Important basic materials related to the national economy and people's livelihood. In terms of personal protection, the national mandatory standards for firefightin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/90D01F1/10C08G69/00
CPCD01F6/905D01F1/103C08G69/00
Inventor 关振虹冷向阳李丹宋西全邓书生
Owner YANTAI TAYHO ADVANCED MATERIALS CO LTD
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