CN107645065A - A kind of preparation method of onion carbon/MXene stratiform Wave suction composite materials - Google Patents
A kind of preparation method of onion carbon/MXene stratiform Wave suction composite materials Download PDFInfo
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- CN107645065A CN107645065A CN201710806021.6A CN201710806021A CN107645065A CN 107645065 A CN107645065 A CN 107645065A CN 201710806021 A CN201710806021 A CN 201710806021A CN 107645065 A CN107645065 A CN 107645065A
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Abstract
A kind of preparation method of onion carbon/MXene stratiform Wave suction composite materials：Using titanium silicon-carbon as raw material, after the corrosion of various concentrations hydrofluoric acid, dried after being washed with deionized, obtain MXene materials；The method that the MXene materials of preparation are disperseed with ultrasonic wave afterwards is dispersed in deionized water, obtains the suspension of Mxene materials；The method that onion carbon nanomaterial is disperseed using ultrasonic wave is dispersed in deionized water, obtains the suspension of onion carbon nanomaterial；MXene materials suspension solution is prepared into onion carbon/MXene stratiform Wave suction composite materials with onion carbon material suspension solution using the method for replacing filtering；The onion carbon of preparation/MXene stratiform Wave suction composite materials lighter weight, thinner thickness, have preferable reflectivity in microwave frequency range.
Description
Technical field
The invention belongs to technical field of composite preparation, and in particular to a kind of onion carbon/MXene stratiforms inhale ripple composite wood
The preparation method of material.
Background technology
Electromagnetic energy is distally propagated in the form of ripple without returning to wave source, and referred to as electromagnetic radiation, electromagnetic pollution is by electricity
The unordered super-strength of magnetic wave is radiation-induced, except by natural causes such as cosmic ray, air thunder and lightning, the sun and earth heat radiations
Outside caused natural electromagnetic pollution, caused electromagnetism causes when also producing class of electronic devices and life electronic product work
Artificial electromagnetic pollution.Electromagnetic pollution can not only bring bad influence to the health of the mankind, can also welding and each
Kind electronic equipment, this causes electromagnetic pollution to become a kind of new social pollution.In face of this problem, one kind efficiently solves way
Footpath is to work out the material that can absorb special frequency channel electromagnetic wave, i.e. absorbing material.
Absorbing material is actually to refer to the effective electromagnetic wave for absorbing and inciding its surface, and passes through material internal
Various loss mechanisms (such as medium vibration, misfortune stream and magnetostriction) electromagnetic energy changed into heat energy or other forms
A kind of material of energy.It is ideally that the electromagnetic wave for inciding material surface can all be inhaled by completely indiscriminate
Receive, can be due to limitation by material in itself, this is practically impossible to what is realized.In actual applications, normally only
Material is asked to have a stronger absorption in certain frequency range, this must to be fulfilled for two as absorbing material application
Individual primary condition：(1) electromagnetic wave incident reduces the anti-of surface to that should enter the inside of material as far as possible during material surface
Penetrate；(2) can be fallen into the electromagnetic wave of material internal by promptly complete attenuation.And two above requires often conflicting
, in traditional absorbing material, rarely material can meet above-mentioned requirements, it would therefore be highly desirable to prepare a kind of lightweight, thin layer, more
Frequency range, wide band absorbing material.
The content of the invention
It is an object of the invention to provide the preparation method of onion carbon/MXene stratiform Wave suction composite materials, the suction ripple prepared
Absorbing Materials are excellent.
The technical solution adopted in the present invention is a kind of preparation method of onion carbon/MXene stratiform Wave suction composite materials,
Specifically implement according to following steps：
Step 1, MXene materials are prepared；
Step 2, the suspension solution of MXene materials is prepared；
Step 3, the suspension solution of onion carbon nanomaterial is prepared；
Step 4, the suspension solution of the onion carbon material MXene materials suspension solution that step 2 obtains obtained with step 3
Using the method for alternately filtering, onion carbon/MXene stratiform Wave suction composite materials are obtained.
The features of the present invention also resides in,
The specific method of step 1 is, using titanium silicon carbon material as raw material, to be soaked in the hydrofluoric acid that concentration is 10%~40%
In solution, soak time is 24~48 hours, is washed with deionized 3~5 times, is dried in 80~120 degree of baking oven afterwards,
Produce MXene materials；
The specific method of step 2 is：MXene materials after step 1 is dried are dispersed in using ultrasonic method
In deionized water solution, concentration is 20%~40%；
The specific method of step 3 is：It is water-soluble that onion carbon nanomaterial using ultrasonic method is dispersed in deionization
In liquid, concentration is 20%~40%；
The specific method of step 4 is：By the MXene materials suspension solution prepared in step 2 and step 3 and prepare onion carbon
Nano material suspension solution, according to each thickness degree of design, is 1~5 micron per thickness degree, determines two kinds of suspensions as raw material
Dosage be respectively 100~500 milliliters, and onion carbon/MXene stratiform Wave suction composite materials are prepared using alternately filtration method, wherein
The number of plies of sandwich-like composite is 3~9 layers.
The beneficial effects of the invention are as follows：
1. the preparation method of onion carbon of the present invention/MXene stratiform Wave suction composite materials, using titanium silicon-carbon as raw material, by not
After concentration HF acid corrosions, dried after being washed with deionized, obtain MXene materials；The MXene materials of preparation are used afterwards super
The scattered method of sound wave is dispersed in deionized water, obtains the suspension of Mxene materials；Onion carbon nanomaterial is used
The scattered method of ultrasonic wave is dispersed in deionized water, obtains the suspension of onion carbon nanomaterial；MXene materials are hanged
Turbid solution is with onion carbon material suspension solution using the method for replacing filtering, you can it is compound to obtain onion carbon/MXene stratiforms suction ripple
Material.
2. the preparation method of onion carbon of the present invention/MXene stratiform Wave suction composite materials, preparation flow is simple, simply sets
It is standby to be produced, effectively reduce the cost of production.
3. the preparation method of onion carbon of the present invention/MXene stratiform Wave suction composite materials, onion carbon/MXene stratiforms are inhaled ripple and answered
Condensation material lighter weight, thinner thickness, there is preferable reflectivity in microwave frequency range.
Brief description of the drawings
Fig. 1 is the onion carbon/MXene stratiform Wave suction composite materials prepared in the method for the present invention in microwave frequency range
Reflectance map.
Embodiment
With reference to embodiment, the present invention is described in detail.
The preparation method of onion carbon of the present invention/MXene stratiform Wave suction composite materials, specifically implements according to following steps：
Step 1, MXene materials are prepared, specific method is：
By titanium silicon-carbon (Ti3SiC2) material as raw material, is soaked in the hydrofluoric acid solution that concentration is 10%~40%, leaching
It is 24~48 hours to steep the time, is washed with deionized afterwards 3~5 times, is dried in 80~120 degree of baking oven, produce MXene
Material；
Step 2, the suspension solution of MXene materials is prepared, specific method is,
MXene materials after step 1 is dried are dispersed in deionized water solution using ultrasonic method, and concentration is
20%~40%；
Step 3, the suspension solution of onion carbon nanomaterial is prepared, specific method is,
Onion carbon nanomaterial is dispersed in deionized water solution using ultrasonic method, the suspension solution of configuration
Concentration be 20%~40%；
Step 4, it is the MXene materials suspension solution prepared in step 2 and step 3 and preparation onion carbon nanomaterial is suspended
Solution is 1~5 micron per thickness degree according to each thickness degree of design, the dosage for determining two kinds of suspensions is respectively as raw material
100~500 milliliters, and onion carbon/MXene stratiform Wave suction composite materials are prepared using alternately filtration method, wherein sandwich-like is compound
The number of plies of material is 3~9 layers.
Embodiment 1
Step 1, using titanium silicon carbon material as raw material, it is soaked in the hydrofluoric acid solution that concentration is 40%, soak time is
48 hours, it is washed with deionized 5 times, is dried in 120 degree of baking oven afterwards, produce MXene materials；
Step 2, the MXene materials after step 1 is dried are dispersed in deionized water solution using ultrasonic method,
Concentration is 40%；
Step 3, onion carbon nanomaterial is dispersed in deionized water solution using ultrasonic method, concentration is
40%；
Step 4, it is the MXene materials suspension solution prepared in step 2 and step 3 and preparation onion carbon nanomaterial is suspended
Solution as raw material, wherein, MXene material suspension solutions dosage is 100 milliliters, and onion carbon nanomaterial suspension solution dosage is
100 milliliters, onion carbon/MXene stratiform Wave suction composite materials, the wherein layer of sandwich-like composite is prepared using alternately filtration method
Number is 9 layers, is 5 microns per thickness degree.
Embodiment 2
Step 1, using titanium silicon carbon material as raw material, it is soaked in the hydrofluoric acid solution that concentration is 20%, soak time is
36 hours, it is washed with deionized 4 times, is dried in 100 degree of baking oven afterwards, produce MXene materials；
Step 2, the MXene materials after step 1 is dried are dispersed in deionized water solution using ultrasonic method,
Concentration is 20%；
Step 3, onion carbon nanomaterial is dispersed in deionized water solution using ultrasonic method, concentration is
20%；
Step 4, it is the MXene materials suspension solution prepared in step 2 and step 3 and preparation onion carbon nanomaterial is suspended
Solution as raw material, wherein, MXene material suspension solutions dosage is 300 milliliters, and onion carbon nanomaterial suspension solution dosage is
300 milliliters, onion carbon/MXene stratiform Wave suction composite materials, the wherein layer of sandwich-like composite is prepared using alternately filtration method
Number is 6 layers, is 3 microns per thickness degree.
Embodiment 3
Step 1, using titanium silicon carbon material as raw material, it is soaked in the hydrofluoric acid solution that concentration is 40%, soak time is
24 hours, it is washed with deionized 3 times, is dried in 80 degree of baking oven afterwards, produce MXene materials；
Step 2, the MXene materials after step 1 is dried are dispersed in deionized water solution using ultrasonic method,
Concentration is 30%；
Step 3, onion carbon nanomaterial is dispersed in deionized water solution using ultrasonic method, concentration is
30%；
Step 4, it is the MXene materials suspension solution prepared in step 2 and step 3 and preparation onion carbon nanomaterial is suspended
Solution as raw material, wherein, MXene material suspension solutions dosage is 500 milliliters, and onion carbon nanomaterial suspension solution dosage is
500 milliliters, onion carbon/MXene stratiform Wave suction composite materials, the wherein layer of sandwich-like composite is prepared using alternately filtration method
Number is 3 layers, is 1 micron per thickness degree.
Embodiment 4
Step 1, using titanium silicon carbon material as raw material, it is soaked in the hydrofluoric acid solution that concentration is 40%, soak time is
48 hours, it is washed with deionized 4 times, is dried in 110 degree of baking oven afterwards, produce MXene materials；
Step 2, the MXene materials after step 1 is dried are dispersed in deionized water solution using ultrasonic method,
Concentration is 35%；
Step 3, onion carbon nanomaterial is dispersed in deionized water solution using ultrasonic method, concentration is
35%；
Step 4, it is the MXene materials suspension solution prepared in step 2 and step 3 and preparation onion carbon nanomaterial is suspended
Solution as raw material, wherein, MXene material suspension solutions dosage is 77 milliliters, and onion carbon nanomaterial suspension solution dosage is
250 milliliters, onion carbon/MXene stratiform Wave suction composite materials, the wherein layer of sandwich-like composite is prepared using alternately filtration method
Number is 8 layers, is 3 microns per thickness degree.
Embodiment 5
Step 1, using titanium silicon carbon material as raw material, it is soaked in the hydrofluoric acid solution that concentration is 40%, soak time is
48 hours, it is washed with deionized 5 times, is dried in 120 degree of baking oven afterwards, produce MXene materials；
Step 2, the MXene materials after step 1 is dried are dispersed in deionized water solution using ultrasonic method,
Concentration is 30%；
Step 3, onion carbon nanomaterial is dispersed in deionized water solution using ultrasonic method, concentration is
40%；
Step 4, it is the MXene materials suspension solution prepared in step 2 and step 3 and preparation onion carbon nanomaterial is suspended
Solution as raw material, wherein, MXene material suspension solutions dosage is 150 milliliters, and onion carbon nanomaterial suspension solution dosage is
150 milliliters, onion carbon/MXene stratiform Wave suction composite materials, the wherein layer of sandwich-like composite is prepared using alternately filtration method
Number is 6 layers, is 5 microns per thickness degree.
After onion carbon/MXene composites prepared by embodiment 3 and paraffin are compound, both mass ratios are 3：7,
It is carried out after electromagnetic performance tested and calculated, you can obtain its emissivity in microwave frequency range.Fig. 1 embodiments
3 onion carbon/reflectance maps of the MXene stratiform Wave suction composite materials in microwave frequency range prepared.
Claims (5)
1. the preparation method of a kind of onion carbon/MXene stratiform Wave suction composite materials, it is characterised in that specifically according to following steps
Implement：
Step 1, MXene materials are prepared；
Step 2, the suspension solution of MXene materials is prepared；
Step 3, the suspension solution of onion carbon nanomaterial is prepared；
Step 4, the suspension solution of the onion carbon material MXene materials suspension solution that step 2 obtains obtained with step 3 uses
The alternately method of filtering, obtains onion carbon/MXene stratiform Wave suction composite materials.
2. the preparation method of onion carbon according to claim 1/MXene stratiform Wave suction composite materials, it is characterised in that step
Rapid 1 specific method is：By titanium silicon-carbon (Ti3SiC2) as raw material, it is molten to be soaked in the hydrofluoric acid that concentration is 10%~40% material
In liquid, soak time is 24~48 hours, is washed with deionized 3~5 times, is dried in 80~120 degree of baking oven, i.e., afterwards
Obtain MXene materials.
3. the preparation method of onion carbon according to claim 1/MXene stratiform Wave suction composite materials, it is characterised in that institute
The specific method for the step 2 stated is：MXene materials after step 1 is dried are dispersed in deionization using ultrasonic method
In the aqueous solution, concentration is 20%~40%.
4. the preparation method of onion carbon according to claim 1/MXene stratiform Wave suction composite materials, it is characterised in that institute
The specific method for the step 3 stated is：Onion carbon nanomaterial is dispersed in deionized water solution using ultrasonic method,
Concentration is 20%~40%.
5. the preparation method of onion carbon according to claim 1/MXene stratiform Wave suction composite materials, it is characterised in that institute
The specific method for the step 4 stated is by the MXene materials suspension solution prepared in step 2 and step 3 and to prepare onion carbon nanometer
Material suspension solution is 1~5 micron per thickness degree, the dosage of two kinds of suspensions is respectively 100~500 milliliters, and is adopted as raw material
Onion carbon/MXene stratiform Wave suction composite materials are prepared with alternately filtration method, the wherein number of plies of sandwich-like composite is 3~9
Layer.
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| CN108682812A (en) * | 2018-05-10 | 2018-10-19 | 山东大学 | A kind of combination electrode material and preparation method thereof of MXene coated Sis |
| CN108811478A (en) * | 2018-06-12 | 2018-11-13 | 西北工业大学 | A kind of three-layer laminated MXene electromagnetic shielding foam and preparation method |
| CN109449402A (en) * | 2018-10-29 | 2019-03-08 | 北京科技大学 | A kind of nano carbon microsphere supports preparation and its application method of MXene composite material |
| CN110330020A (en) * | 2019-06-17 | 2019-10-15 | 昆明理工大学 | A kind of method of the fluorine-containing functional group of microwave efficient removal MXene |
| CN113293655A (en) * | 2021-05-27 | 2021-08-24 | 电子科技大学 | Preparation method of MXene composite film with controllable thickness and novel structure |
| CN116014453A (en) * | 2022-10-27 | 2023-04-25 | 电子科技大学 | Super-hydrophobic terahertz wave absorber based on MXene and cage-shaped structure three-dimensional foam |
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| CN108811478A (en) * | 2018-06-12 | 2018-11-13 | 西北工业大学 | A kind of three-layer laminated MXene electromagnetic shielding foam and preparation method |
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| CN116014453A (en) * | 2022-10-27 | 2023-04-25 | 电子科技大学 | Super-hydrophobic terahertz wave absorber based on MXene and cage-shaped structure three-dimensional foam |
| CN116014453B (en) * | 2022-10-27 | 2023-08-15 | 电子科技大学 | Super-hydrophobic terahertz wave absorber based on MXene and cage-shaped structure three-dimensional foam |
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Application publication date: 20180130 |