Method for preparing onion carbon/MXene layered wave absorbing composite material

A composite material, onion carbon technology, applied in magnetic field/electric field shielding, electrical components, antennas, etc., to achieve the effects of light weight, good reflectivity, and simple preparation process

Inactive Publication Date: 2018-01-30
XI'AN POLYTECHNIC UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The above two requirements are often contradictory. Among the traditional absorbing materials, very few materials can meet the above requirements. Therefore, it is urgent to prepare a light-weight, thin-layer, multi-band, and broadband absorbing material.

Method used

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  • Method for preparing onion carbon/MXene layered wave absorbing composite material

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] In step 1, the titanium silicon carbon material is used as a raw material, soaked in a hydrofluoric acid solution with a concentration of 40%, and the soaking time is 48 hours, and then washed 5 times with deionized water, and dried in an oven at 120 degrees to obtain MXene material;

[0031] In step 2, the MXene material dried in step 1 is uniformly dispersed in a deionized aqueous solution with a concentration of 40% by ultrasonic method;

[0032] Step 3, uniformly dispersing the onion carbon nanomaterial in the deionized aqueous solution by ultrasonic method, the concentration is 40%;

[0033] Step 4, using the MXene material suspension solution prepared in step 2 and step 3 and preparing the onion carbon nanomaterial suspension solution as raw materials, wherein, the MXene material suspension solution consumption is 100 milliliters, and the onion carbon nanomaterial suspension solution consumption is 100 ml, the onion carbon / MXene layered microwave-absorbing compos...

Embodiment 2

[0035] Step 1, the titanium silicon carbon material is used as a raw material, soaked in a hydrofluoric acid solution with a concentration of 20%, and the soaking time is 36 hours, and then washed with deionized water for 4 times, and dried in an oven at 100 degrees to obtain MXene material;

[0036] In step 2, the MXene material dried in step 1 is uniformly dispersed in deionized aqueous solution with a concentration of 20% by ultrasonic method;

[0037] Step 3, uniformly dispersing the onion carbon nanomaterial in the deionized aqueous solution by ultrasonic method, the concentration is 20%;

[0038] Step 4, using the MXene material suspension solution prepared in step 2 and step 3 and preparing the onion carbon nanomaterial suspension solution as raw materials, wherein, the MXene material suspension solution consumption is 300 milliliters, and the onion carbon nanomaterial suspension solution consumption is 300 ml, the onion carbon / MXene layered wave-absorbing composite ma...

Embodiment 3

[0040] Step 1, the titanium silicon carbon material is used as a raw material, soaked in a hydrofluoric acid solution with a concentration of 40%, the soaking time is 24 hours, and then washed with deionized water for 3 times, and dried in an oven at 80 degrees to obtain MXene material;

[0041] In step 2, the MXene material dried in step 1 is uniformly dispersed in a deionized aqueous solution with a concentration of 30% by ultrasonic method;

[0042] Step 3, uniformly dispersing the onion carbon nanomaterial in the deionized aqueous solution by ultrasonic method, the concentration is 30%;

[0043] Step 4, using the MXene material suspension solution prepared in step 2 and step 3 and preparing the onion carbon nanomaterial suspension solution as raw materials, wherein, the MXene material suspension solution consumption is 500 milliliters, and the onion carbon nanomaterial suspension solution consumption is 500 ml, the onion carbon / MXene layered microwave-absorbing composite ...

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Abstract

A method for preparing a onion carbon / MXene layered wave absorbing composite material comprises steps of: taking titanium silicon carbon as a raw material, corroding the titanium silicon carbon by using hydrofluoric acid with different concentrations, and then washing the corroded titanium silicon carbon with deionized water and drying the washed titanium silicon carbon to obtain an MXene material; uniformly dispersing the prepared MXene material in the deionized water by using a ultrasonic dispersion method to obtain a suspension of the Mxene material; uniformly dispersing the onion carbon nanomaterial in the deionized water by using the ultrasonic dispersion method to obtain a suspension of the onion carbon nanomaterial; alternately filtering the suspension of the Mxene material and thesuspension of the onion carbon nanomaterial to obtain the onion carbon / MXene layered wave absorbing composite material. The prepared onion carbon / MXene layered wave absorbing composite material has the advantages of light weight and low thickness, and has a good reflectivity in a microwave frequency range.

Description

technical field [0001] The invention belongs to the technical field of composite material preparation, and in particular relates to a preparation method of an onion carbon / MXene layered wave-absorbing composite material. Background technique [0002] Electromagnetic energy spreads far away in the form of waves without returning to the wave source, which is called electromagnetic radiation. Electromagnetic pollution is caused by the disordered super-intensity radiation of electromagnetic waves, except for natural factors such as cosmic rays, atmospheric lightning, solar and earth thermal radiation. In addition to the natural electromagnetic pollution caused by environmental pollution, there are also man-made electromagnetic pollution caused by electromagnetic waves generated during the work of production electronic equipment and living electronic products. Electromagnetic pollution will not only have adverse effects on human health, but also damage the environment and various...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q17/00H05K9/00
Inventor 苏晓磊贾艳刘毅
Owner XI'AN POLYTECHNIC UNIVERSITY
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