Method of preparing magnetic nano composite fibre

A composite fiber, magnetic nanotechnology, applied in plant fibers, fiber processing, textiles and papermaking, etc., can solve the problems of complicated textile equipment requirements, affecting fiber performance, nozzle blockage, etc., to achieve broad civilian and military prospects, Excellent mechanical properties, the effect of avoiding degradation

Inactive Publication Date: 2007-10-24
WUHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of the above method is that the amount of magnetic powder mixed is usually very low, and it will also cause aggregation due to uneven mixing of particles, which will affect the performance of the fiber
In addition, the preparation of magnetic composite fibers by blending often causes clogging of the spinneret, which makes the textile equipment more demanding and complicated, and may also cause magnetic pollution.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Pre-cool 3000 grams of NaOH / urea aqueous solution to -12°C, then add 61.23 grams of cellulose and stir at room temperature for 3 to 5 minutes to obtain a cellulose solution with a concentration of 2% by weight. After vacuum defoaming, spin Silk machine spinning into fibers; soak the fibers in 0.01mol / L iron salt solution for 12 hours, and then pass through 4mol / L NaOH solution to obtain cellulose fibers with a certain color, wash with water, dry, and put on The magnetic nanocomposite fiber can be obtained by rolling.

Embodiment 2

[0013] Pre-cool 3000 grams of NaOH / urea aqueous solution to -12°C, then add 125 grams of cellulose and stir at room temperature for 3 to 5 minutes to obtain a cellulose solution with a concentration of 4% by weight. After vacuum degassing, spin Silk machine spinning into fibers; soak the fibers in 0.1mol / L iron salt solution for 6 hours, and then pass through 3mol / L NaOH solution to obtain cellulose fibers with a certain color, wash with water, dry, and put on The magnetic nanocomposite fiber can be obtained by rolling.

Embodiment 3

[0015] Pre-cool 3000 grams of NaOH / urea aqueous solution to -12°C, then add 157.9 grams of cellulose and stir at room temperature for 3 to 5 minutes to obtain a cellulose solution with a concentration of 5% by weight. After vacuum degassing, spin Silk machine spinning into fibers; soak the fibers in 0.2mol / L iron salt solution for 4 hours, and then pass through 1mol / L NaOH solution to obtain cellulose fibers with a certain color, wash with water, dry, and put on The magnetic nanocomposite fiber can be obtained by rolling.

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Abstract

The present invention discloses a method for preparing magnetic nano-composite fiber. The steps are: dissolving the cellulose in NaOH / urea water solution completely and getting the cellulose solution, debubbling in vacuum and preparing fiber through spinning machine, then soaking the cellulose fiber into 0. 01 mol / L - 2mol / L ferric salt or ferrous salt solution, passing the 0. 1 mol / L - 4mol / L NaOH solution, then producing the magnetic nano-composite fiber. The method is simple to operating, raw materials are cheap, the prepared products have good mechanical and magnetic properties. The nano-magnetic fiber can be made protective clothing, health care supplies and so on, and it also has certain prospect in daily health care, military and other areas.

Description

technical field [0001] The invention relates to a method for preparing magnetic nanocomposite fiber and its application. It belongs to the field of natural polymer materials, and also belongs to the fields of textile, chemical industry, magnetic materials and military industry. Background technique [0002] Magnetic materials and their applications have been developed as early as ancient times. At present, there are many types and specifications of magnetic materials, and they are used in a large amount. They have application prospects in many industrial, health care, medicine and biotechnology fields such as instruments, meters, electronics, military industry, and aerospace. Due to the difference in chemical, physical structure, and particle size, the magnetic properties of materials are different and their efficacy is also different. Therefore, different magnetic materials have different uses after being made into various products. Human cells are miniature bodies with ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/49D06M11/38D06M101/06
Inventor 张俐娜刘石林周金平
Owner WUHAN UNIV
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