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Multifunctional anti-fatigue graphene composite sponge, preparation method and applications thereof

A graphene composite and anti-fatigue technology, applied in the application field, can solve the problems of poor fatigue test effect, low electrical conductivity, poor bonding degree of filler matrix, etc., and achieve easy-to-scale production, high porosity, and small skeleton size Effect

Active Publication Date: 2020-01-17
SHENYANG AEROSPACE UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method is a new type of preparation method in which the filler is physically modified to strengthen the combination with the matrix. It is easy to operate, the process is simple, the performance of the material is excellent, and the multi-functional application performance is wide. A series of problems such as low electrical conductivity, stretching, and poor fatigue test results caused by poor bonding, and it is expected to be applied to a wider range of technical fields

Method used

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  • Multifunctional anti-fatigue graphene composite sponge, preparation method and applications thereof
  • Multifunctional anti-fatigue graphene composite sponge, preparation method and applications thereof
  • Multifunctional anti-fatigue graphene composite sponge, preparation method and applications thereof

Examples

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Embodiment 1

[0055] A kind of preparation method of multifunctional anti-fatigue graphene composite sponge, its process flow diagram is shown in figure 1 , including the following steps:

[0056] (1) After the graphite intercalation compound is thermally expanded at 700°C for 3 minutes, it is uniformly oscillated in an acetone solvent, and then dried to obtain expanded graphene sheets; the ultrasonic frequency is 100KHz;

[0057] (2) the expanded graphene sheet is mixed with Triton in mass ratio, the expanded graphene sheet: Triton=1: 10 is mixed, grinds 40min, makes Triton adhere to the graphene surface to the greatest extent, obtains the expanded graphene sheet of Triton modification;

[0058] (3) The fully ground 0.5g Triton-modified expanded graphene sheet is mixed with 63mL deionized water, and mechanically stirred for more than 2 hours to mix it uniformly to obtain a mixed solution;

[0059] (4) The porosity is 88.725%, and the density is 16kg / m 3 A melamine sponge with a skeleton ...

Embodiment 2

[0063] A preparation method of multifunctional anti-fatigue graphene composite sponge, comprising the following steps:

[0064] (1) Weigh 0.3g of graphite intercalation compound and put it into a constant temperature muffle furnace at 700°C for heating and puffing, then put it into a beaker, use acetone as a solvent, and oscillate and disperse until uniform by ultrasonic cleaning at an ultrasonic frequency of 100KHz , and finally placed in an 80°C electric constant temperature drying oven to evaporate acetone to obtain the desired uniform expanded graphene sheet;

[0065] (2) Extract 3mL Triton with a syringe, place it and the prepared expanded graphene sheet in an agate mortar, and grind clockwise for 40 minutes to obtain Triton-modified expanded graphene sheet.

[0066] (3) The expanded graphene sheets modified by Triton were poured into 63mL of deionized water, and mechanically stirred for 2 hours to obtain a mixed solution whose mass fraction of expanded graphene sheets wa...

Embodiment 3

[0070] A preparation method of multifunctional anti-fatigue graphene composite sponge, comprising the following steps:

[0071] (1) Weigh 0.4g of graphite intercalation compound and put it into a constant temperature muffle furnace at 700°C for heating and puffing, then put it into a beaker, use acetone as a solvent, and oscillate and disperse evenly at an ultrasonic frequency of 100KHz by an ultrasonic cleaner. Finally, put it into an 80°C electric constant temperature drying oven to evaporate acetone to obtain the required uniform expanded graphene sheet;

[0072] (2) Extract 4mL Triton with a syringe, place it and the prepared expanded graphene sheet in an agate mortar, and grind clockwise for 40 minutes to obtain the expanded graphene sheet modified by Triton.

[0073] (3) The expanded graphene sheets modified by Triton were poured into 63mL of deionized water, and mechanically stirred for 2 hours to obtain a mixed solution whose mass fraction of expanded graphene sheets w...

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Abstract

The invention relates to a multifunctional anti-fatigue graphene composite sponge, a preparation method and applications thereof. The preparation method comprises: carrying out thermal expansion on, ultrasonic oscillation and drying on a graphite intercalation compound, grinding the obtained expanded graphene sheets and Triton, uniformly mixing, adding deionized water, mixing, and uniformly stirring to obtain a mixed solution, wherein the mass percent of the expanded graphene sheets in the mixed solution is 0.47-1.43 wt%; and immersing sponge into the mixed solution, carrying out ultrasonic treatment until the sponge is completely saturated, and drying to obtain the multifunctional anti-fatigue graphene composite sponge. According to the invention, the prepared multifunctional anti-fatiguegraphene composite sponge can be applied to three fields of engineering monitoring, sound insulation and electrochemistry; the used expanded graphene sheets subjected to non-chemical modification arewell combined in the sponge matrix and are uniformly distributed, and the sheet structure of the expanded graphene sheets is maintained; and the method is a synthetic method with low cost and high yield, and is suitable for large-scale production.

Description

technical field [0001] The invention relates to application fields such as aerospace, sound insulation materials, engineering testing, etc., specifically relates to the technical field of preparation methods of multifunctional application-type composite materials, and particularly relates to a multifunctional anti-fatigue graphene composite sponge and its preparation method and application. Background technique [0002] With the diversification of material application fields, multifunctional materials have become the development trend of new material research. However, the existing multifunctional materials cannot meet the requirements of monitoring, sound insulation, and electrochemical performance. For example, in the field of engineering testing, sensing materials that not only have the function of detecting deformation, but also have the auxiliary function of sound insulation and shock absorption have great development potential; in addition, supercapacitors are used as e...

Claims

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Application Information

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IPC IPC(8): C08J9/40C01B32/19C08L75/04C08L61/28
CPCC08J9/40C01B32/19C08J2375/04C08J2361/28
Inventor 孟庆实于音马军王英波王朔李晓东吴宜洲
Owner SHENYANG AEROSPACE UNIVERSITY
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