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Preparation method for Ti<3>C<2>Mxene/polymer composite wave-absorbing material

A composite wave absorbing material and polymer technology, applied in the field of chemical materials, can solve the problems of poor mechanical properties, high density and difficult adhesion of MXene, and achieve the effects of adjustable dielectric constant, thin thickness and light weight

Inactive Publication Date: 2017-08-29
SHENZHEN UNIV
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  • Summary
  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

However, pure MXene has poor mechanical properties, high density, high cost, and is difficult to attach to the substrate.

Method used

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  • Preparation method for Ti&lt;3&gt;C&lt;2&gt;Mxene/polymer composite wave-absorbing material
  • Preparation method for Ti&lt;3&gt;C&lt;2&gt;Mxene/polymer composite wave-absorbing material
  • Preparation method for Ti&lt;3&gt;C&lt;2&gt;Mxene/polymer composite wave-absorbing material

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Embodiment Construction

[0020] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] This embodiment provides a Ti 3 C 2 The preparation method of MXene / polymer composite wave-absorbing material comprises the steps:

[0022] First: Ti 3 C 2 Preparation of MXenes

[0023] 1) Weigh 1g Ti of MAX phase 3 AlC 2 , and dissolve it in HF with a concentration of 50%, and react for 18-24h under stirring;

[0024] 2) Filter the reaction solution of the above step 1), wash the solid with a large amount of water, and then dry it at 40-60 degrees to obtain Ti 3 C 2 MXene powder.

[0025] Then: Ti 3 C 2 Preparation of MXene / polymer films

[0026] 1) Weigh 1g Ti 3 C 2 MXene powder is dissolved in dimethyl sulfoxide solution, ultrasonicated at 100w-300w for 15-30min;

[0027] 2) the Ti in the above step 1) 3 C 2 The MXene solution is mixed with the polymer and stirred for 1-2h; wherein, the polymer includes PVA, PMMA, ...

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Abstract

The invention discloses a preparation method for a Ti<3>C<2>Mxene / polymer composite wave-absorbing material. The high-efficiency Ti<3>C<2>Mxene / polymer composite wave-absorbing material is prepared by using a solution etching method and a compounding method. The Ti<3>C<2>Mxene / polymer composite wave-absorbing material prepared in the invention has low density, high strength and an adjustable dielectric constant; and more importantly, the composite material can both absorb and reflect electromagnetic waves, so secondary pollution of electromagnetic waves to environment is reduced. The Ti<3>C<2>Mxene / polymer composite wave-absorbing material has the characteristics of light mass, thin thickness, high strength and good wave-absorbing performance and has good application prospects.

Description

technical field [0001] The invention relates to the field of chemical materials, in particular to a Ti 3 C 2 Preparation method of MXene / polymer composite absorbing material. Background technique [0002] The progress of science and technology has made electromagnetic technology create a huge material civilization for human beings, but it also brings people into an environment full of artificial electromagnetic radiation. Electromagnetic radiation pollution has become the fourth pollution source after air pollution, water pollution and noise pollution, and it is becoming more and more serious with the rapid development of electronics and telecommunication technology. In terms of civilian use, high-power electromagnetic wave transmitting towers, radio stations, etc. constantly emit electromagnetic waves to the outside world, often causing problems such as communication interference and electronic fog. What's more serious is that millions of people are at increased risk of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K3/14C08L29/04C08L33/12C08L27/16C08L79/08C08L25/06C09K3/00
CPCC08K3/14C09K3/00C08L29/04C08L33/12C08L27/16C08L79/08C08L25/06
Inventor 刘新科刘睿李奎龙顾虹吕有明俞文杰韩舜曹培江柳文军曾玉祥贾芳朱德亮
Owner SHENZHEN UNIV
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