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A kind of ferric oxide/polypyrrole composite material and preparation method thereof

A technology of ferroferric oxide and composite materials, which is applied in the field of bifunctional nanocomposite fiber materials, can solve problems such as agglomeration, high electromagnetic shielding performance, and difficulty in realizing electromagnetic wave shielding materials, and achieve good mechanical properties, strong processability, and low cost. cheap effect

Active Publication Date: 2021-06-04
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the content of wave absorbing agent is large, it is easy to agglomerate, and it is difficult to disperse evenly in the polymer matrix.
In addition, it is difficult for electromagnetic wave shielding materials mainly based on absorption loss to meet the requirements of high electromagnetic shielding performance.

Method used

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  • A kind of ferric oxide/polypyrrole composite material and preparation method thereof
  • A kind of ferric oxide/polypyrrole composite material and preparation method thereof
  • A kind of ferric oxide/polypyrrole composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] A kind of ferroferric oxide / polypyrrole nanocomposite material

[0053] (1) Stir 10kg of collagen fibers and 500kg of ethanol solution evenly, then add 3kg of nano-ferric oxide, and continue stirring in an ice-water bath at 0-5°C for 1 h;

[0054] (2) Add 7kg of pyrrole monomer to (1), keep stirring for 0.5 h in an ice-water bath at 0-5°C in the dark;

[0055] (3) Prepare ferric chloride solution, slowly add it dropwise to (2), keep stirring in an ice-water bath at 0-5°C in the dark for 20 hours, and wash, filter, and dry thoroughly after the reaction to obtain a ferric chloride solution TriFe / PPyrrole nanocomposite (CF 0.5 Fe 3 o 4 0.15 PPy 0.35 ).

[0056] (4) The resulting CF 0.5 Fe 3 o 4 0.15 PPy 0.35 They were respectively pressed into a disc with a thickness of 2 mm and a ring with a thickness of 2 mm to test their electromagnetic wave shielding performance and electromagnetic wave absorption performance.

[0057] After testing, its electromagnetic wave ...

Embodiment 2

[0059] A kind of ferroferric oxide / polypyrrole nanocomposite material

[0060] (1) Stir 10kg of collagen fibers and 500kg of ethanol solution evenly, then add 3kg of nano-ferric oxide, and keep stirring in an ice-water bath at 0-5 °C for 1 h;

[0061] (2) Add 7 kg of pyrrole monomer to (1), and keep stirring for 0.5 h in an ice-water bath at 0-5 °C in the dark;

[0062] (3) Prepare ferric chloride solution, slowly add it dropwise to (2), keep stirring in an ice-water bath at 0-5°C in the dark for 20 hours, and wash, filter, and dry thoroughly after the reaction to obtain a ferric chloride solution TriFe / PPyrrole nanocomposite (CF 0.5 Fe 3 o 4 0.15 PPy 0.35 ).

[0063] (4) The resulting CF 0.5 Fe 3 o 4 0.15 PPy 0.35 They were respectively pressed into a disc with a thickness of 1.5 mm and a ring with a thickness of 2.5 mm to test their electromagnetic wave shielding performance and electromagnetic wave absorption performance.

[0064] After testing, its electromagneti...

Embodiment 3

[0066] A kind of ferroferric oxide / polypyrrole nanocomposite material

[0067] (1) Stir 10kg of collagen fibers and 500kg of ethanol solution evenly, then add 3kg of nano-ferric oxide, and keep stirring in an ice-water bath at 0-5 °C for 1 h;

[0068] (2) Add 7 kg of pyrrole monomer to (1), and keep stirring for 0.5 h in an ice-water bath at 0-5 °C in the dark;

[0069] (3) Prepare ferric chloride solution, slowly add it dropwise to (2), keep stirring in an ice-water bath at 0-5°C in the dark for 20 hours, and wash, filter, and dry thoroughly after the reaction to obtain a ferric chloride solution TriFe / PPyrrole nanocomposite (CF 0.5 Fe 3 o 4 0.15 PPy 0.35 ).

[0070] (4) The resulting CF 0.5 Fe 3 o 4 0.15 PPy 0.35 They were respectively pressed into a disc with a thickness of 0.5 mm and a ring with a thickness of 3 mm to test their electromagnetic wave shielding performance and electromagnetic wave absorption performance.

[0071] After testing, its electromagnetic ...

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Abstract

The invention discloses a ferroferric oxide / polypyrrole composite fiber material and a preparation method thereof. Collagen fibers are used as a dispersion base to uniformly disperse nanometer ferric oxide, and polypyrrole is formed by in-situ polymerization as a dielectric wave absorbing agent for collagen Fiber coating solves the problem of easy aggregation of nanomaterials and prevents migration of nanomaterials. The fiber material uses nano ferroferric oxide as a magnetic medium type wave absorbing agent, and polypyrrole as a dielectric type wave absorbing agent to absorb and attenuate electromagnetic waves together, and at the same time, it has the performance of enhancing the magnetic loss and dielectric loss of collagen fibers. The materials selected in the invention have wide sources, low cost, simple preparation process, environmental protection and low dependence on equipment, and are an effective way to prepare bifunctional iron ferric oxide / polypyrrole nanocomposite fiber materials.

Description

technical field [0001] The invention belongs to the field of electromagnetic wave shielding and absorbing materials, and in particular relates to a method for preparing a bifunctional nanocomposite fiber material with electromagnetic wave shielding performance and microwave absorption performance by using collagen fiber fibers. Background technique [0002] Electromagnetic wave radiation has been listed by the World Health Organization as the fourth largest source of environmental pollution after water, air, and noise, and has become an invisible "killer" that endangers human health, leading to the deterioration of the electromagnetic environment in human living space (Ameli, A.; JungP. U.; Park, C. B. Electrical properties and electromagnetic interferenceshielding effectiveness of polypropylene / carbon fiber composite foams[J]. Carbon, 2013, 60, 379-391.). [0003] In recent years, there are mainly two ways to prevent and control electromagnetic wave pollution: (1) Electroma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L89/06C08L79/04C08K3/22C08G73/06
CPCC08G73/0611C08K2003/2275C08K2201/011C08L89/06C08L2205/16C08L79/04C08K3/22
Inventor 黄鑫刘畅石碧廖学品
Owner SICHUAN UNIV
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