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Method for preparing durable fabric with electromagnetic shielding performance through superhydrophobic finishing

An electromagnetic shielding and hydrophobization technology, which is applied in fiber treatment, plant fiber, textiles and papermaking, etc., can solve the problems such as the washing resistance and stability of electromagnetic shielding fabrics that have not been pointed out, and achieve high electromagnetic shielding efficiency, low production cost, and good conductivity performance effect

Pending Publication Date: 2019-09-27
ANHUI UNIVERSITY OF TECHNOLOGY AND SCIENCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Patent CN108625160A uses the method of non-covalent assembly coating assisted by capillary effect to prepare electromagnetic shielding fabric with high loading capacity, but they do not point out how to improve the washing stability of the electromagnetic shielding fabric
[0005] For carbon-based or conductive polymer-coated electromagnetic shielding fabrics, the durability of electromagnetic shielding performance during use is a concern of users. However, there are no relevant research reports on how to improve the durability of fabric electromagnetic shielding effectiveness.

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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  • Method for preparing durable fabric with electromagnetic shielding performance through superhydrophobic finishing
  • Method for preparing durable fabric with electromagnetic shielding performance through superhydrophobic finishing
  • Method for preparing durable fabric with electromagnetic shielding performance through superhydrophobic finishing

Examples

Experimental program
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Effect test

Embodiment 1

[0034] Choose ordinary cotton fabric 8×8cm 2 , the thickness is about 0.5mm, and the weight per unit area is 96g / cm 2 , and the durable electromagnetic shielding fabric with superhydrophobic finishing can be prepared according to the following steps.

[0035] Step 1. Soak the cotton fabric in acetone for 15 minutes, take it out and soak it in ethanol for 15 minutes, then wash it repeatedly with deionized water three times to remove oil and impurities on the surface of the fabric, and then dry it at 100°C for use.

[0036] Step 2, put the above-mentioned washed cotton fabric into the pyrrole solution with a concentration of 0.5 mol / L, and soak for 10 min.

[0037] Step 3, put the above-mentioned cotton fabric adsorbed by pyrrole monomer into a sodium dodecylbenzenesulfonate solution with a mass concentration of 10 mg / mL, and soak for 10 min.

[0038] Step 4, put the cotton fabric adsorbed with sodium dodecylbenzenesulfonate into a ferric chloride solution with a concentration...

Embodiment 2

[0045] The cotton fabric sample that present embodiment is selected with embodiment 1 is identical, and difference is that method step parameter is different, and the concrete method step of this embodiment is as follows:

[0046] Step 1. Soak the cotton fabric in acetone for 15 minutes, take it out and soak it in ethanol for 15 minutes, then wash it repeatedly with deionized water three times to remove oil and impurities on the surface of the fabric, and then dry it at 100°C for use.

[0047] Step 2, put the above-mentioned washed cotton fabric into the pyrrole solution with a concentration of 1mol / L, and soak for 10min.

[0048] Step 3, put the above-mentioned cotton fabric adsorbed by pyrrole monomer into a sodium dodecylbenzenesulfonate solution with a mass concentration of 10 mg / mL, and soak for 10 min.

[0049]Step 4, put the cotton fabric adsorbed with sodium dodecylbenzenesulfonate into a ferric chloride solution with a concentration of 1mol / L. At this time, the temper...

Embodiment 3

[0056] The cotton fabric sample that present embodiment is selected with embodiment 1 is identical, and difference is that method step parameter is different, and the concrete method step of this embodiment is as follows:

[0057] Step 1. Soak the cotton fabric in acetone for 15 minutes, take it out and soak it in ethanol for 15 minutes, then wash it repeatedly with deionized water three times to remove oil and impurities on the surface of the fabric, and then dry it at 100°C for use.

[0058] Step 2, put the above-mentioned washed cotton fabric into the pyrrole solution with a concentration of 1mol / L, and soak for 10min.

[0059] Step 3, put the above-mentioned cotton fabric adsorbed by pyrrole monomer into a sodium dodecylbenzenesulfonate solution with a mass concentration of 10 mg / mL, and soak for 10 min.

[0060] Step 4, put the cotton fabric adsorbed with sodium dodecylbenzenesulfonate into a ferric chloride solution with a concentration of 1mol / L, the solution temperatur...

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 discloses a method for preparing a durable fabric with the electromagnetic shielding performance through superhydrophobic finishing. The method comprises the steps that the fabric obtained after cleaning and impurity removing is soaked in a pyrrole monomer (Py) solution, and then taken out and put in a dopant-containing ferric trichloride solution for in situ polymerization, so that a polypyrrole conductive (PPy) coating is formed on the surface of the fabric, then chemical vapor deposition is conducted on 1H,1H,2H,2H-perfluorooctyl triethoxylsilane (POST) on the surface of the fabric, and the durable fabric with the electromagnetic shielding performance is obtained. According to the prepared durable fabric with the excellent electromagnetic shielding performance, the prepared coated fabric is high in electromagnetic shielding effectiveness and controllable in coating thickness, the required experimental operation conditions are simple in requirement and low in energy consumption, expensive equipment is not needed, and the production cost is low.

Description

technical field [0001] The invention belongs to the technical field of electromagnetic shielding fabrics, and in particular relates to a method for preparing fabrics with durable electromagnetic shielding performance through superhydrophobic finishing. Background technique [0002] In today's society, while enjoying the infinite convenience brought by electronic technology, people are also suffering from various electromagnetic radiation. Electromagnetic radiation will cause certain harm to the human body, so the research and development of electromagnetic shielding materials has aroused widespread concern. As a kind of flexible material that can block electromagnetic waves, electromagnetic shielding fabrics can be applied to electromagnetic shielding protective clothing for the human body, anti-radar tents in the military, etc. At present, the methods of preparing electromagnetic shielding fabrics include blending or interweaving of metal wires and conventional fibers, met...

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): D06M15/37D06M13/513D06M13/256D06M101/06D06M101/20D06M101/32
CPCD06M13/256D06M13/513D06M15/37D06M2101/06D06M2101/20D06M2101/32D06M2200/12
Inventor 邹梨花孙妍妍杨莉阮芳涛徐珍珍谢艳霞
Owner ANHUI UNIVERSITY OF TECHNOLOGY AND SCIENCE
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