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Method for preparing antibacterial polyamide fiber through in-situ polymerization

An antibacterial polyamide, in-situ polymerization technology, applied in the direction of single-component polyamide rayon, fiber chemical characteristics, rayon manufacturing, etc., to achieve low cost, high strength, and good effect

Active Publication Date: 2021-07-02
JIAXING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This has not been reported in the existing literature

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] 1) Preparation of antibacterial nano metal powder

[0064] Copper powder, water, and polyvinylpyrrolidone are prepared into a solution in a mass ratio of 1:50:3, N46 base oil: triethanolamine: stearic acid grinding aid = 2:0.5:0.5 Add grinding aid according to the mass of copper powder 5%, stir to mix well, in N 2 High-energy ball milling in an inert atmosphere, and drying in an oven at 50° C. to obtain antibacterial nano copper powder with a particle size of 50-100 nm. Among them, the mass ratio of ball to material is 10:1 in the ball milling process, the ball milling time is 10h, and the ball milling speed is 1000r / min;

[0065] 2) Preparation of Zr(HPO 4 ) 2 Loaded nano metal microspheres

[0066] First add PVP and water, stir until completely dissolved, then add furfuryl alcohol and the antibacterial nano-copper powder obtained in step 1), and make a polyfurfuryl alcohol-coated antibacterial nano-copper powder microsphere solution at a temperature of 160 ° C for...

Embodiment 2

[0074] 1) Preparation of antibacterial nano metal powder

[0075]Zinc powder, water, and polyvinylpyrrolidone are prepared into a solution in a mass ratio of 1:80:5, N46 base oil: triethanolamine: stearic acid grinding aid = 2:0.5:0.5 Add grinding aid according to the mass of zinc powder 0.5%, stir to mix well, in N 2 High-energy ball milling in an inert atmosphere, and drying in an oven at 50°C to obtain antibacterial nano-zinc powder with a particle size of 100-300nm. Among them, the mass ratio of ball to material is 8:1 in the ball milling process, the ball milling time is 6h, and the ball milling speed is 500r / min;

[0076] 2) Preparation of Zr(HPO 4 ) 2 Loaded nano metal microspheres

[0077] First add PVP and water, stir until completely dissolved, then add furfuryl alcohol and the antibacterial nano-zinc powder obtained in step 1), and make a polyfurfuryl alcohol-coated antibacterial nano-zinc powder microsphere solution at a temperature of 150 ° C for 24 hours; add...

Embodiment 3

[0085] 1) Preparation of antibacterial nano metal powder

[0086] Nickel powder, water, and polyvinylpyrrolidone are prepared into a solution in a mass ratio of 1:40:1, N46 base oil: triethanolamine: stearic acid grinding aid = 2:0.5:0.5 Add grinding aid according to the mass of nickel powder 2%, stir to mix well, in N 2 High-energy ball milling in an inert atmosphere, and drying in an oven at 50° C. to obtain antibacterial nano-nickel powder with a particle size of 200-300 nm. Among them, the mass ratio of ball to material is 5:1 in the ball milling process, the ball milling time is 2h, and the ball milling speed is 600r / min;

[0087] 2) Preparation of Zr(HPO 4 ) 2 Loaded nano metal microspheres

[0088] First add PVP and water, stir until completely dissolved, then add furfuryl alcohol and the antibacterial nano-nickel powder obtained in step 1), and make a polyfurfuryl alcohol-coated antibacterial nano-nickel powder microsphere solution at a temperature of 180 ° C for 2...

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Abstract

The invention discloses a method for preparing antibacterial polyamide fiber through in-situ polymerization, and belongs to the technical field of modified polyamide materials. Zr(HPO4)2 is adopted to load polyfurfuryl alcohol to wrap antibacterial nano metal powder microspheres, polyvinylpyrrolidone (PVP) and metal powder are subjected to high-speed ball milling to prepare nano metal powder with good dispersity, and then the nano metal powder and furfuryl alcohol are subjected to a polymerization reaction to prepare polyfurfuryl alcohol wrapped antibacterial nano metal powder microspheres, so that the agglomeration of the nano metal powder is avoided; hydrogen bonds between hydroxyl of organic polyfurfuryl alcohol and P-OH of Zr(HPO4)2 interact to realize loading of the antibacterial nano metal powder, wherein the metal powder is copper powder, zinc powder, nickel powder, copper-zinc alloy powder or copper-iron alloy powder; and the polyfurfuryl alcohol can have good compatibility with polyamide, and a prepared antibacterial polyamide fiber material has good antibacterial property, thermal stability and fiber strength.

Description

technical field [0001] The invention relates to the technical field of modified polyamide materials, in particular to a method for preparing antibacterial polyamide fibers by in-situ polymerization. Background technique [0002] Polyamide polymer products are used frequently and widely in production and life, but their antibacterial function is weak, and it is easy to breed bacteria and other microorganisms, which affects human health. Therefore, there is an urgent need to improve the antibacterial properties of polyamide products. In recent years, in the antibacterial research of polyamide fiber at home and abroad, the antibacterial performance is mainly obtained by adding a small amount of antibacterial agent. Antibacterial agents are generally divided into these categories: inorganic type, organic type and natural type. Among them, inorganic type antibacterial agents are more researched. Inorganic antibacterial agents are made of metal (such as Ag, Cu, Zn, etc.) ions as ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/90D01F1/10C08G69/16
CPCD01F6/90D01F1/103C08G69/16
Inventor 胡英颜志勇王晓馨于利超李喆生俊露易洪雷姚勇波
Owner JIAXING UNIV
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