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Preparation method for polypyrrole and graphene oxide based sponge structural material

A structural material and graphene technology, applied in the fields of water-absorbing materials and conductive materials, can solve problems such as restricting the application of graphene, and achieve the effects of low production cost, simple process and good application prospects.

Inactive Publication Date: 2013-10-30
WUHAN INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But like carbon-60 and carbon nanotubes, graphene is easy to aggregate in solution and solid state, which limits the application of graphene

Method used

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  • Preparation method for polypyrrole and graphene oxide based sponge structural material

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] 1) prepare graphene oxide according to the method reported in literature (Adv.Funct.Mater.2009,19,2297-2302);

[0020] 2) adding graphene oxide, direct red 31 and pyrrole monomer into deionized water respectively to obtain solution A, the mass percent concentration of graphene oxide in solution A is 0.2wt%, and the concentration of direct red 31 is 0.05mol / L, The concentration of pyrrole monomer is 0.05mol / L;

[0021] 3) Add 20 mL of 0.1 mol / L ferric chloride solution to 10 mL of solution A, stir for 2 minutes, and then stand at 0°C for 24 hours;

[0022] 4) Filter the generated precipitate, wash with methanol, dilute hydrochloric acid, and distilled water three times each, and then vacuum-dry at room temperature for 24 hours to obtain a sponge structure material based on polypyrrole and graphene oxide.

[0023] The sponge structure material (product) based on polypyrrole and graphene oxide is as soft as a sponge when pinched in the hand. figure 1 It is the scanning e...

Embodiment 2

[0025] 1) with step 1) among the embodiment 1;

[0026] 2) Graphene oxide, methyl orange and pyrrole monomer were added into deionized water respectively to obtain solution A, the mass percentage concentration of graphene oxide in solution A was 0.3wt%, and the concentration of methyl orange was 0.1mol / L, The concentration of pyrrole monomer is 0.08mol / L;

[0027] 3) Add 15 mL of 0.2 mol / L ferric nitrate solution to 15 mL of solution A, stir for 3 minutes, and then stand at 10°C for 30 hours;

[0028] 4) Filter the generated precipitate, wash with methanol, dilute acetic acid, and distilled water three times each, and then vacuum-dry at room temperature for 24 hours to obtain a sponge structure material based on polypyrrole and graphene oxide.

Embodiment 3

[0030] 1) with step 1) among the embodiment 1;

[0031] 2) adding graphene oxide, acid scarlet G and pyrrole monomer into deionized water respectively to obtain solution A, the mass percentage concentration of graphene oxide in solution A is 0.5wt%, and the concentration of acid scarlet G is 0.15mol / L, The concentration of pyrrole monomer is 0.1mol / L;

[0032] 3) Add 30mL of 0.1mol / L ferric sulfate solution to 20mL of solution A, stir for 4 minutes, and then stand at 20°C for 24 hours;

[0033] 4) Filter the generated precipitate, wash with methanol, dilute sulfuric acid, and distilled water three times each, and then vacuum-dry at room temperature for 24 hours to obtain a sponge structure material based on polypyrrole and graphene oxide.

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Abstract

The invention discloses a polypyrrole and graphene oxide based sponge structural material and a preparation method for the same. The preparation method for the polypyrrole and graphene oxide based sponge structural material is characterized by including the steps: 1) respectively adding the graphite oxide, dye and pyrrole monomers into deionized water so as to obtain solution A; 2) adding 15-30mL aqueous solution containing oxidant into the 10-20mL solution A with stirring for 2-5 minutes, and then allowing the stirred solution to stand for 24-36 hours at the temperature of 0-20 DEG C, wherein the concentration of the aqueous solution containing the oxidant is 0.1-1mol / L; and 3) filtering, respectively scrubbing precipitate with methanol, diluted acid and distilled water for three times, and then subjecting the scrubbed precipitate to vacuum drying for 24 hours at the room temperature, namely, obtaining the polypyrrole and graphene oxide based sponge structural material. The preparation method is mild in reaction conditions, simple in process and low in large-scale production cost.

Description

technical field [0001] The invention relates to a preparation method of a sponge structure material based on polypyrrole and graphene oxide, which can be used in the fields of conductive materials, water-absorbing materials and the like. Background technique [0002] Common polymer materials such as polyethylene, polyvinyl chloride, polystyrene, epoxy resin, nylon, etc. are considered as electrical insulating materials. However, since the discovery of conductive polyacetylene in the 1970s, after more than 40 years of development, conductive polymer materials have become an emerging multidisciplinary research field. Conductive polymer materials have a special structure and excellent physical and chemical properties, so that they have broad and attractive application prospects in the fields of electronic display, optoelectronic devices, sensors, electromagnetic shielding and metal anticorrosion. The preparation of conductive polymer materials with excellent performance has ex...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K3/04
Inventor 李亮张强郑华明夏克强喻湘华鄢国平
Owner WUHAN INSTITUTE OF TECHNOLOGY
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