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Preparation of magnetic conductive polyaniline nanometer composite material

A nano-composite material, conductive polyaniline technology, applied in the direction of the magnetism of organic materials/organic magnetic materials, conductive materials dispersed in non-conductive inorganic materials, etc. Complex, long preparation process and other problems, to achieve the effect of easy large-scale production, simple preparation process, short process flow

Inactive Publication Date: 2008-10-08
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the current preparation technology has the problem that the conductivity and magnetic properties cannot be improved at the same time, that is, when magnetic particles (such as Fe 3 o 4 ) content increases, the electrical conductivity of the material tends to decrease
And there are disadvantages such as complex preparation process, long preparation process, high energy consumption, or incapability of mass production

Method used

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  • Preparation of magnetic conductive polyaniline nanometer composite material
  • Preparation of magnetic conductive polyaniline nanometer composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] 1) First prepare 600 milliliters of nitric acid solution, the concentration of which is 0.06mol / L, then divide the solution into two equal parts, add aniline monomer and silver nitrate to one part of the acidic solution, and stir well to form A liquid, its The concentration of aniline is 0.06mol / L, and the concentration of silver ions is 0.0015mol / L. Add ferric nitrate to another part of the acidic solution and stir evenly to form liquid B. The molar concentration of the ferric nitrate solution is 0.03mol / L; Pour liquid B quickly into liquid A and let it stand for 12 hours;

[0019] 2) Add ammonia water dropwise to the mixture of A and B above, and stir vigorously until the system pH=13, and continue stirring for 10 minutes;

[0020] 3) Separating the system formed in step 2) by filtration under reduced pressure, and washing with distilled water and ethanol in turn until the pH of the filtrate is 7;

[0021] 4) Dissolve the blue-black solid obtained in step 3) in 300 m...

Embodiment 2

[0025] 1) First prepare 600 milliliters of nitric acid solution, the concentration of which is 0.3mol / L, then divide this solution into two equal parts, add aniline monomer and silver nitrate to one part of the acidic solution, and stir evenly to form A liquid, its The concentration of aniline is 0.2mol / L, the concentration of silver nitrate is 0.005mol / L, add ferric nitrate to another part of acidic solution, stir evenly, form B liquid, the molar concentration of ferric nitrate solution is 0.1mol / L, then at room temperature Pour liquid B quickly into liquid A and let it stand for 20 hours;

[0026] 2) Add ammonia water dropwise to the mixture of A and B above, and stir vigorously until the system pH=13, and continue stirring for 40 minutes;

[0027] 3) Separating the system formed in step 2) by filtration under reduced pressure, and washing with distilled water and ethanol in turn until the pH of the filtrate is 7;

[0028] 4) Dissolve the blue-black solid obtained in step 3...

Embodiment 3

[0031] With embodiment 1, wherein nitric acid concentration is 0.9mol / L; The electrical conductivity of gained polyaniline-ferric oxide-silver nanocomposite material is 4.75 * 10 -3 S / cm, the saturation magnetization is 19.0emu / g.

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Abstract

The invention provides a magnetic conductive polyaniline nano-composite material preparation method, which takes nitrate iron and silver nitrate as the oxidants and adopts the rapid mixing method to synthesize polyaniline-Fe3O4-silver nano-composite material in one step. The polyaniline nano-composite material obtained by the invention has simple preparation technology, high magnetic permeability and high conductivity and can be produced in mass production and widely applied to electromagnetic shielding, absorbing material, high-frequency antenna and anti-static fields.

Description

technical field [0001] The invention relates to the technical field of conductive functional polymer materials, in particular to a preparation method of a magnetic conductive polyaniline nanocomposite material. Background technique [0002] While the rich electromagnetic wave resources are widely used in the information industry, the electromagnetic interference generated has brought many harms. Electromagnetic radiation not only interferes with electronic devices such as computers and mobile phones, but also causes harm to the human body. The increase in the incidence of cancer, leukemia and other diseases has a certain relationship with the increase in electromagnetic radiation. Electromagnetic wave interference has become a public hazard all over the world. At present, international organizations, governments of various countries, and scientific research circles have paid great attention to how to prevent electromagnetic wave interference, and have formulated strict regul...

Claims

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Application Information

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IPC IPC(8): C08L79/02C08K3/22C08K3/08C08G73/02H01B1/20H01F1/42
Inventor 贾庆明陕绍云
Owner KUNMING UNIV OF SCI & TECH
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