Graphene/polyaniline/cobalt composite wave-absorbing material and preparation method

A composite wave absorbing material and wave absorbing material technology are applied in the directions of radiation absorbing coatings, chemical instruments and methods, and other chemical processes, etc., which can solve the problems of reducing the density of absorbents, and achieve strong dielectric loss performance and simple preparation process. , the effect of low cost
CN103554908AInactive Publication Date: 2014-02-05UNIV OF SCI & TECH BEIJING
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
UNIV OF SCI & TECH BEIJING
Publication Date
2014-02-05
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a graphene / polyaniline / cobalt composite wave-absorbing material and a preparation method thereof, belonging to the field of preparing an electromagnetic wave absorption material. The wave-absorbing material comprise a film forming material and an electromagnetic wave absorbent, wherein paraffin is adopted as the film forming material, a graphene / polyaniline / cobalt ternary complex is adopted as the electromagnetic wave absorbent, and the mass ratio of the graphene / polyaniline / cobalt ternary complex to the paraffin is 1:1. The preparation method of the material comprises the following steps: (1) preparing graphite oxide; (2) preparing the graphene / polyaniline binary complex; (3) preparing the graphene / polyaniline / cobalt ternary complex; (4) weighing graphene / polyaniline / cobalt ternary complex and paraffin, and evenly mixing to obtain a graphene / polyaniline / cobalt wave-absorbing material. The material has the characteristics of being low in cost, simple in preparation technology, strong in electromagnetic wave absorption capability, wide in absorption frequency band, small in density and the like, achieves good electromagnetic property and stability, and has important application values in the fields of microwave absorption and electromagnetic shielding.
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Description

Technical field:

[0001] The invention belongs to the field of preparation of electromagnetic wave absorbing materials, in particular to a preparation method of a graphene / polyaniline / cobalt novel composite material with wave-absorbing properties. Background technique:

[0002] With the development of modern science and technology and the progress of industrial civilization, the application of various electronic instruments and equipment is increasing day by day, which produces more and more electromagnetic radiation, so electromagnetic interference is becoming more and more serious, and it has become a problem for many equipment to function. At the same time, electromagnetic pollution has penetrated into every corner of production and life, seriously affecting people's health. Therefore, how to effectively prevent and eliminate electromagnetic interference has become an important topic in the global scientific and technological circles.

[0003] Absorbing materials are requ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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