Novel graphene aerogel material and preparation method thereof

A graphene airgel and graphene technology, applied in chemical instruments and methods, inorganic chemistry, non-metallic elements, etc., can solve the problems of unsuitability for large-scale production and high product cost, and achieve comprehensive economic benefits and self-lubricating Good effect and cost reduction effect

Inactive Publication Date: 2018-01-05
马鞍山中粮生物化学有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

As far as the existing technology is concerned, it contains a certain amount of harmful and toxi...

Method used

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Embodiment 1

[0014] A new type of graphene aerogel material and its preparation method. The raw material composition is composed of the following proportions in parts by weight: 45 parts of graphene oxide, 6 parts of HPMA, 120 parts of ammonia, 15 parts of polytetrafluoroethylene, 9 parts of tung oil , 7 parts of m-aminophenol, 55 parts of deionized water.

[0015] The preparation method is as follows:

[0016] A. Mix the graphene oxide powder, HPMA and deionized water into a well-dispersed graphene oxide aqueous solution with a concentration of 4mg / ml, ultrasonically shake for 40 minutes, and adjust the pH to 7.5;

[0017] B. Put the prepared graphene oxide aqueous solution, polytetrafluoroethylene and m-aminophenol into the hydrothermal kettle, and treat it at 120°C for 3 hours to prepare graphene oxide hydrogel;

[0018] C. Put the prepared graphene oxide hydrogel and tung oil into ammonia water at a temperature of 50° C., soak for 8 hours, and then freeze-dry to obtain a high-strength graphene...

Embodiment 2

[0021] A new type of graphene aerogel material and its preparation method. The raw materials are composed of 60 parts by weight of graphene oxide, 8 parts of HPMA, 130 parts of ammonia, 10 parts of polytetrafluoroethylene, and 10 parts of tung oil. , 10 parts of m-aminophenol, 80 parts of deionized water.

[0022] The preparation method is as follows:

[0023] A. Combine the graphene oxide powder, HPMA and deionized water to form a well-dispersed graphene oxide aqueous solution with a concentration of 8 mg / ml, ultrasonically shake for 120 min, and adjust the pH to 8.5;

[0024] B. Add the prepared graphene oxide aqueous solution, polytetrafluoroethylene and m-aminophenol to the hydrothermal kettle, and treat at 200°C for 4 hours to prepare graphene oxide hydrogel;

[0025] C. Put the prepared graphene oxide hydrogel and tung oil into ammonia water at a temperature of 150° C., soak for 12 hours, and then freeze-dry to obtain a high-strength graphene oxide aerogel.

[0026] The cooling a...

Embodiment 3

[0028] A new type of graphene aerogel material and its preparation method. The raw material composition is composed of 40 parts by weight of graphene oxide, 5 parts of HPMA, 150 parts of ammonia, 10 parts of polytetrafluoroethylene, 8 parts of tung oil. , 6 parts of m-aminophenol, 80 parts of deionized water.

[0029] The preparation method is as follows:

[0030] A. Combine the graphene oxide powder, HPMA and deionized water to form a well-dispersed graphene oxide aqueous solution with a concentration of 3mg / ml, ultrasonically shake for 120 minutes, and adjust the pH to 8.5;

[0031] B. Add the prepared graphene oxide aqueous solution, polytetrafluoroethylene and m-aminophenol into a hydrothermal kettle, and treat at 100°C for 4 hours to prepare graphene oxide hydrogel;

[0032] C. Put the prepared graphene oxide hydrogel and tung oil into ammonia water at a temperature of 120° C., soak for 8 hours, and then freeze-dry to obtain a high-strength graphene oxide aerogel.

[0033] The coo...

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PUM

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Abstract

The invention relates to a novel graphene aerogel material and a preparation method thereof. The novel graphene aerogel material is prepared from, by weight, 40-60 parts of graphene oxide, 5-10 partsof HPMA, 100-150 parts of ammonium hydroxide, 10-20 parts of polytetrafluoroethylene, 8-10 parts of China wood oil, 6-10 parts of m-aminophenol and 50-80 parts of deionized water. The novel graphene aerogel material is easy to obtain, simple in preparation method, little in consumed time, high in mechanical strength, low in energy consumption, pollution-free, good in absorption and catalyzing effect and good in self-lubricating effect, does not easily crack or scale, and is good in dispersion effect and high in oxidation resistance, the service life of the novel graphene aerogel material is prolonged, the graphene aerogel material can be recycled and used repeatedly, the cost is lowered, and the comprehensive economic benefits are improved.

Description

Technical field [0001] The invention relates to the field of gel materials, in particular to a novel graphene aerogel material and a preparation method thereof. Background technique [0002] Aerogel is a porous foam-like fixing material with extremely light density and high specific surface area. Due to its special porous structure, aerogels have been widely studied in catalytic substrates, absorbent materials, and conductive and insulating materials. Graphene aerogel possesses the characteristics of both graphene and aerogel, including high porosity, ultra-light density, high mechanical strength, and good thermal and electrical conductivity. Therefore, graphene aerogels are widely used in fields such as energy storage, catalysis, environmental protection, and electronic devices. So far, many methods for preparing graphene aerogels or hydrogels have been produced, including hydrothermal self-assembly, template-oriented method, cross-linking method, chemical vapor deposition met...

Claims

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Application Information

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IPC IPC(8): C01B32/198
Inventor 唐宏泉张纯
Owner 马鞍山中粮生物化学有限公司
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