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Ferroferric oxide/polypyrrole composite material and preparation method thereof

A technology of triiron tetroxide and composite materials, applied in the field of bifunctional nano-composite fiber materials, can solve the problems of agglomeration, high electromagnetic shielding performance, and difficulty in realizing electromagnetic wave shielding materials.

Active Publication Date: 2018-12-11
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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  • Ferroferric oxide/polypyrrole composite material and preparation method thereof
  • Ferroferric oxide/polypyrrole composite material and preparation method thereof
  • Ferroferric 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 / polypyrrole 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 electromagnet...

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Abstract

The invention disclose a ferroferric oxide / polypyrrole composite material and a preparation method thereof. The collagen fiber adopted as a dispersion base is uniformly dispersed into nano ferroferricoxide, and in-situ polymerization is performed so as to generate polypyrrole adopted as a dielectric-type wave absorber for wrapping the collagen fiber, so that the problem that nano materials are easy to cluster is solved, and translation of the nano materials is prevented. The fiber material utilizes ferroferric oxide as a magnetic medium wave absorber and polypyrrole as the dielectric-type wave absorber so as to absorb attenuation electromagnetic waves together, and meanwhile, the magnetic loss dielectric loss performances of the collagen fiber are enhanced. The selected materials are extensive in source and low in cost; the preparation process is simple and environmentally friendly, and is low in equipment dependency degree, so that the preparation method is an effective way for preparing dual-functional ferroferric oxide / polypyrrole nano composite 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 Applications(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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