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Polyaniline fiber wave-absorbing system and preparation method thereof

A technology of polyaniline fiber and chiral polyaniline, which is applied in fiber treatment, non-woven fabrics, electrospinning, etc., can solve problems such as poor solubility and processability, limited practical progress, unfavorable spinning and forming processing, etc. To achieve the effect of excellent absorbing performance

Active Publication Date: 2018-11-02
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to its processing characteristics, carbon materials are not conducive to spinning and forming processing, and their application in the field of textiles is still in its infancy. Therefore, the preparation of wave-absorbing textiles by spinning conductive polymers has become a research hotspot.
[0005] Conductive polyaniline is widely used as a dielectric loss absorbing material. However, its single absorbing mechanism can no longer meet the requirements of current absorbing materials. At the same time, the conjugation and rigidity of the molecular structure of conductive polyaniline make it soluble and poor machinability, which greatly limits its practical application

Method used

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  • Polyaniline fiber wave-absorbing system and preparation method thereof
  • Polyaniline fiber wave-absorbing system and preparation method thereof
  • Polyaniline fiber wave-absorbing system and preparation method thereof

Examples

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Effect test

Embodiment 1

[0035] A polyaniline fiber wave-absorbing system, the wave-absorbing system is a polyaniline fiber film, specifically made by electrospinning an electrospinning solution containing chiral polyaniline with a helical structure through electrospinning.

[0036] The preparation method of this polyaniline fiber wave-absorbing system comprises the following steps:

[0037] First, prepare chiral polyaniline with helical structure;

[0038] Add 1 g of camphorsulfonic acid and 0.4 mL of aniline monomer to 10 mL of chloroform and mix; then, add 0.05 g of p-aminodiphenylamine, 0.5 g of 2,3-dichloro-5, 6-dicyano-1,4-benzoquinone and 10 mL tetrahydrofuran were mixed evenly, and after standing at room temperature for 10-20 hours, a solution containing polyaniline was obtained;

[0039] Take 0.1mL of this solution, add it to 30mL of good solvent, disperse evenly, and let it stand for 5-30min. Centrifugal washing with washing liquid; finally vacuum drying at 50-80°C to obtain chiral polyani...

Embodiment 2

[0044] A polyaniline fiber wave-absorbing system, the wave-absorbing system is a polyaniline fiber film, specifically made by electrospinning an electrospinning solution containing chiral polyaniline with a helical structure through electrospinning.

[0045] The preparation method of this polyaniline fiber wave-absorbing system comprises the following steps:

[0046] First, prepare chiral polyaniline with helical structure;

[0047] Add 5 g of camphorsulfonic acid and 0.2 mL of aniline monomer to 30 mL of chloroform and mix; then, add 0.01 g of p-aminodiphenylamine, 1 g of 2,3-dichloro-5, 6-dicyano-1,4-benzoquinone and 6 mL tetrahydrofuran were mixed uniformly, and after standing at room temperature for 10-20 hours, a solution containing polyaniline was obtained;

[0048] Take 0.5mL of this solution, add it to 10mL of good solvent, disperse evenly, and let it stand for 5-30min. Centrifugal washing with washing liquid; finally vacuum drying at 50-80°C to obtain chiral polyani...

Embodiment 3

[0053] A polyaniline fiber wave-absorbing system, the wave-absorbing system is a polyaniline fiber film, specifically made by electrospinning an electrospinning solution containing chiral polyaniline with a helical structure through electrospinning.

[0054] The preparation method of this polyaniline fiber wave-absorbing system comprises the following steps:

[0055] First, prepare chiral polyaniline with helical structure;

[0056] Add 1 g of camphorsulfonic acid and 0.2 mL of aniline monomer to 10 mL of chloroform and mix; then, add 0.01 g of p-aminodiphenylamine, 0.5 g of 2,3-dichloro-5, 6-dicyano-1,4-benzoquinone and 6 mL tetrahydrofuran were mixed uniformly, and after standing at room temperature for 10-20 hours, a solution containing polyaniline was obtained;

[0057] Take 0.1mL of this solution, add it to 10mL of good solvent, disperse evenly, and let it stand for 5-30min. Centrifugal washing with washing liquid; finally vacuum drying at 50-80°C to obtain chiral polya...

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Abstract

The invention relates to the technical field of textiles and wave-absorbing materials, in particular to a polyaniline fiber wave-absorbing system and a preparation method thereof. The wave-absorbing system is a polyaniline fiber membrane. The preparation method includes the steps: firstly, preparing spiral structure chiral polyaniline; secondly, preparing the spiral structure chiral polyaniline into electrostatic spinning solution; finally, preparing the electrostatic spinning solution into the polyaniline fiber membrane by electrostatic spinning. The prepared wave-absorbing material has dielectric loss of conductive macromolecules, cross polarization characteristics of chiral wave-absorbing materials, multiple loss mechanisms of electromagnetic waves and excellent wave-absorbing performances, and can be applied to the fields of super-capacitors, intelligent wearable devices and the like.

Description

technical field [0001] The invention relates to the technical field of textile and wave-absorbing materials, in particular to a polyaniline fiber wave-absorbing system and a preparation method thereof. Background technique [0002] Today, with the rapid development of electronic informatization, electromagnetic waves have become an important carrier of information transmission, and are widely used in both military and civilian fields. While electromagnetic waves have brought good news to the industry, they have also created many problems. Electromagnetic waves have threatened human health, the normal operation of electronic and electrical equipment and systems, medical safety, and aviation safety. Therefore, the protection and treatment of electromagnetic wave pollution has attracted much attention, and the research and development of new high-performance electromagnetic wave materials has become a hot field to solve electromagnetic pollution. [0003] Electromagnetic wave ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/74D01D5/00C08G73/02
CPCC08G73/0266D01D5/003D04H1/74
Inventor 朱曜峰李想董余兵傅雅琴
Owner ZHEJIANG SCI-TECH UNIV
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