Ferrite-graphene modified polycarboxyl pyrrole wave-absorbing material and preparation method thereof

A technology of graphene modification and wave-absorbing materials, which is applied in the direction of electrical components, magnetic field/electric field shielding, etc., can solve the problem of poor electromagnetic impedance matching performance of wave-absorbing materials, low relative complex permittivity of polypyrrole, and inability to effectively absorb electromagnetic waves and other problems, to achieve the effect of enhancing electromagnetic impedance matching performance, promoting cyclic migration, and high resistivity
CN110499024AInactive Publication Date: 2019-11-26厦门珉瑶贸易有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
厦门珉瑶贸易有限公司
Publication Date
2019-11-26
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to the technical field of polypyrrole wave-absorbing materials, and discloses a ferrite-graphene modified polycarboxyl pyrrole wave-absorbing material and a preparation method thereof. The formula of the ferrite-graphene modified polycarboxyl pyrrole wave-absorbing material comprises the following experimental raw materials: ferric trichloride hexahydrate, anhydrous aluminumsulfate, cobalt chloride hexahydrate, oxalic acid, pyrrole, a synergistic catalyst, graphene and the like. CoAl ferrite Co0.65-0.85Al0.15-0.35Fe2O4 is added to modify polypyrrole, and Fe and Al have excellent electrical conductivity, so the conductivity of the wave-absorbing material is improved; when the wave-absorbing material senses an external magnetic field, a mass induced current can be generated, and an induction magnetic field opposite to the external magnetic field is generated, so the absorbing and shielding effects on electromagnetic waves are achieved; and Co has the magnetic advantages of high resistivity and low high-frequency loss, so the eddy current loss of the magnetic loss in the high frequency band of ferrite is effectively improved when the external magnetic field andthe metal Co compound form interactive resonance.
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Description

technical field

[0001] The invention relates to the technical field of polypyrrole wave-absorbing materials, in particular to a ferrite-graphene modified polycarboxypyrrole wave-absorbing material and a preparation method thereof. Background technique

[0002] With the rapid development of the economy and the great progress of science and technology, electronic communication technology has developed rapidly. Due to the development of radio, television, and microwave technology, the power of radio frequency equipment has doubled, and the electromagnetic radiation on the ground has increased significantly, making electromagnetic waves useless. Everywhere, the interactive changes of the electric field and the magnetic field generate electromagnetic waves. The phenomenon of electromagnetic waves launching or sinking into the air is called electromagnetic radiation. Excessive electromagnetic radiation causes electromagnetic pollution to the extent that it directly threatens human ...

Claims

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