Preparation method of titanium nitride nanosheet wave-absorbing material

A technology of titanium nitride nanometer and wave absorbing material is applied in the field of wave absorbing material, which can solve the problems of high cost and complicated process, and achieve the effects of low price, good wave absorbing properties and green preparation process.

Pending Publication Date: 2021-12-03
HARBIN INST OF TECH AT WEIHAI +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of complex process and high cost in the existing method for preparing titanium nitride absorbing materials, and provide a preparation method of titanium nitride nanosheet absorbing materials

Method used

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  • Preparation method of titanium nitride nanosheet wave-absorbing material
  • Preparation method of titanium nitride nanosheet wave-absorbing material
  • Preparation method of titanium nitride nanosheet wave-absorbing material

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specific Embodiment approach 1

[0014] Specific embodiment 1: In this embodiment, a method for preparing a titanium nitride nanosheet wave-absorbing material is realized according to the following steps:

[0015] 1. Mix sodium hydroxide and deionized water, and carry out magnetic stirring to obtain an aqueous solution;

[0016] 2. Transfer the above aqueous solution to the reaction kettle, add titanium nitride and stir evenly, put it in an oven for reaction, wash the obtained product with deionized water and dry it in the oven to obtain titanium nitride nanosheet wave-absorbing material, and complete The preparation method.

specific Embodiment approach 2

[0017] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that the concentration of the aqueous solution in step 1 is 2 to 10 mol / L, and the volume of the aqueous solution is 25 to 35 mL; the mass of the titanium nitride is 1 to 35 mL. 4g. Other steps and parameters are the same as those in Embodiment 1.

specific Embodiment approach 3

[0018] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the magnetic stirring time in Step 1 is 5-30 minutes, and the rotation speed is 200-800 rpm. Other steps and parameters are the same as those in Embodiment 1 or Embodiment 2.

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Abstract

The invention discloses a preparation method of a titanium nitride nanosheet wave-absorbing material, and belongs to the technical field of wave-absorbing materials. The invention aims to solve the problems of complex process and high cost of the existing method for preparing the titanium nitride wave-absorbing material. The method comprises: 1, preparing a sodium hydroxide aqueous solution; and 2, transferring the sodium hydroxide aqueous solution into a reaction kettle, adding titanium nitride for reaction, washing the obtained product, and drying to obtain the titanium nitride nanosheet wave-absorbing material. The titanium nitride nanosheet wave-absorbing material is successfully prepared, the preparation process is green, simple, low in price and suitable for large-scale mass production, the obtained titanium nitride nanomaterial has good wave-absorbing characteristics, the reflection loss value can reach-15.74 dB under the conditions of 4.32 GHz and 6 mm coating thickness, and effective absorption of electromagnetic waves of 1.04 GHz (4-5.04 GHz) is achieved. The titanium nitride nanosheet prepared by the invention is used as a wave-absorbing material.

Description

technical field [0001] The invention belongs to the technical field of wave-absorbing materials; in particular, it relates to a preparation method of titanium nitride nanosheet wave-absorbing materials. Background technique [0002] With the rapid development of electronic equipment, the problems of electromagnetic pollution and electromagnetic interference are becoming more and more serious. Electromagnetic pollution will reduce or even denature protease activity in the human body, which will adversely affect human health. Electromagnetic interference will affect the normal operation of other equipment. Electromagnetic absorbing materials mainly convert electromagnetic waves into heat energy through resistive loss related to the conductivity of the material, hysteresis loss related to the dynamic magnetization process of ferromagnetic media, or dielectric loss related to repeated polarization of the dielectric. Titanium nitride has good physical and chemical properties such...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B21/076B82Y40/00
CPCC01B21/0768B82Y40/00C01P2004/24C01P2006/90
Inventor 钟博刘越刘冬冬王春雨王华涛姜大海
Owner HARBIN INST OF TECH AT WEIHAI
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