Preparation method of electromagnetic functional compound fabric

A composite fabric and functional technology, applied in textiles, papermaking, fiber processing, etc., to maintain flexible style characteristics, ensure bonding fastness, and ensure uniform dispersion.

Inactive Publication Date: 2012-06-13
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the research on polyaniline / magnetic nanoparticles at home and abroad is still in its infancy. The composite fabric with conductive polymer / nanomagnetic particles is a new type of functional material, which will have the properties of conductivity, magnetism and ordinary fibers at the same time. Electromagnetic parameters can be adjusted, which is of great significance not only in military affairs but also in civilian use

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] This embodiment adopts polyester cloth

[0026] (1) Fe with an average particle size of 20nm 3 o 4 Dissolve 3.5g of nano-magnetic particles in 60mL of distilled water, ultrasonicate for 30min, pour it into a three-necked bottle and stir at a high speed (1400-1500r / min), keep at 70°C, add 25mL of sodium oleate solution (containing sodium oleate 2 g), continue stirring for 30 min after the dropwise drop, and then lower the temperature to 50°C. Add 2g PEG4000 into the system at one time, keep the temperature and continue to stir for 60min to form a stable magnetic fluid;

[0027] (2) Immerse the fabric in 20g / L NaOH solution, heat it at 90°C for 30min, take it out and wash it with distilled water, put it in a mixed aqueous solution of 1.0mol / L aniline and hydrochloric acid (pH=4) and soak it at 90°C 120min, take it out, dry it naturally, immerse in the mixed aqueous solution (pH=4) of 0.5mol / L ammonium persulfate and hydrochloric acid, control the excess rate of 90%, pl...

Embodiment 2

[0030] This embodiment adopts polyester cloth

[0031] (1) Fe with an average particle size of 30nm 3 o 4 Dissolve 4g of nano-magnetic particles in 80mL of distilled water, sonicate for 40min, pour it into a three-necked bottle and stir at a high speed (1500-1600r / min), keep at 80°C, add 30mL of sodium oleate solution (containing 2.5% sodium oleate) dropwise g), continue to stir for 40 minutes after dropping, and then lower the temperature to 60°C. Add 2.5g PEG4000 into the system at one time, keep the temperature and continue to stir for 60min to form a stable magnetic fluid;

[0032] (2) Immerse the fabric in 20g / L NaOH solution, heat it at 90°C for 40min, take it out and wash it with distilled water, put in 0.8mol / L mixed aqueous solution of aniline and perchloric acid (pH=5) at 90°C Soak under water for 120min, take it out, dry it naturally, immerse in the mixed aqueous solution (pH=5) of 0.4mol / L ammonium persulfate and perchloric acid, control the excess rate of 90%, ...

Embodiment 3

[0035] This embodiment adopts polyester brocade cloth

[0036] (1) Fe with an average particle size of 20nm 3 o 4 Dissolve 4g of nano-magnetic particles in 80mL of distilled water, sonicate for 40min, pour it into a three-necked bottle and stir at a high speed (1400-1500r / min), keep at 80°C, add 30mL of sodium oleate solution (containing 2.5 g), continue stirring for 40 minutes after dropping, and then lower the temperature to 60°C; add 2.5g PEG4000 into the system at one time, keep the temperature and continue stirring for 60 minutes to form a stable magnetic fluid;

[0037] (2) Immerse the fabric in 20g / L NaOH solution, heat it at 90°C for 40min, take it out and wash it with distilled water, then put in a mixed aqueous solution of 0.8mol / L aniline, hydrochloric acid and p-toluenesulfonic acid (pH=4) Soak at 90°C for 120min, take it out, dry it naturally, and immerse it in the mixed aqueous solution (pH=4) of 0.4mol / L ammonium persulfate, hydrochloric acid, p-toluenesulfoni...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention relates to a preparation method of an electromagnetic functional compound fabric. The method comprises the following steps of: (1) dissolving Fe3O4 nano magnetic-particles in distilled water, ultrasonically stirring at high speed, dropwise adding a sodium oleate solution, continuously stirring, then cooling to 30-60 DEG C, and adding polyethylene glycol to form nano magnetofluid; (2) soaking the fabric in an NaOH solution, heating and cleaning, putting the cleaned fabric into a mixed aqueous solution containing aniline and a doping acid, taking the fabric out and airing, soaking the aired fabric into a mixed aqueous solution containing ammonium persulfate and a doping acid, soaking and rolling once, and then placing at 0-10 DEG C; and (3) soaking the fabric obtained in the step (2) into the nano magnetofluid obtained in the step (1), soaking and rolling once, then soaking the rolled fabric into an acetate solution, taking out and airing to obtain the finished product. The preparation method disclosed by the invention is simple and feasible, safe and environment-friendly and has low requirements on equipment performance; and the electromagnetic functional compound fabric prepared by using the preparation method disclosed by the invention has the advantages of good flexibility, favorable electrical conductivity and wide application prospect.

Description

technical field [0001] The invention belongs to the field of preparation of composite fabrics, in particular to a preparation method of electromagnetic functional composite fabrics. Background technique [0002] Intrinsically conductive polymer polyaniline (PANI) has a large electrical loss performance, but the magnetic loss is very small. In order to improve the electromagnetic shielding performance of the material and broaden the shielding frequency range, PANI conductive materials are often endowed with magnetic functions, Au / PANI, Co / PANI, Fe 3 o 4 / PANI, CdS / PANI, etc. have been reported successively. [0003] At present, the research on polyaniline / magnetic nanoparticles at home and abroad is still in its infancy. The composite fabric with conductive polymer / nanomagnetic particles is a new type of functional material, which will have the properties of conductivity, magnetism and ordinary fibers at the same time. The adjustable electromagnetic parameters are of great...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/49D06M15/61C08G73/02D06M101/32D06M101/36
Inventor 蔡再生赵亚萍卞学海
Owner DONGHUA UNIV
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