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A kind of preparation method of conductive and superhydrophobic graphene functional paper

A graphene, super-hydrophobic technology, applied in paper, papermaking, physical treatment of paper, etc., can solve the problem of inability to deal with trace oil in water, and achieve the effect of low production cost and simple and convenient method

Active Publication Date: 2017-12-05
SOUTHEAST UNIV
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although they can quickly separate or absorb the water-oil mixture when there is a lot of oil, they still have no way to deal with the trace amount of oil in the water.

Method used

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Examples

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Effect test

preparation example Construction

[0022] A kind of conductive and the preparation method of superhydrophobic graphene functional paper provided by the invention, concrete steps are as follows:

[0023] Step 1, prepare graphene oxide dispersion liquid, and add hydrazine hydrate in described graphene oxide dispersion liquid;

[0024] Step 2, immersing the flexible paper in the mixture of step 1;

[0025] Step 3. The temperature of the mixture obtained in Step 2 is raised to 85-95°C and maintained for 0.5h-24h;

[0026] Step 4, take out the modified flexible paper in step 3 and dry it;

[0027] Step 5. Immerse the dried flexible paper in step 4 in the heptane solution of polydimethylsiloxane for 3 minutes;

[0028] Step 6. Take out the flexible paper in step 5 and dry it;

[0029] Step 7. Curing the dried flexible paper at high temperature in step 6 to obtain conductive and superhydrophobic graphene functional paper.

[0030] Wherein: the concentration of graphene oxide described in step one is 0.5mg / ml-10mg / ...

Embodiment 1

[0033] The first step is to prepare 100ml of 0.5mg / ml graphene oxide solution, and add hydrazine hydrate with a hydrazine content of 7mg, and stir evenly;

[0034] In the second step, immerse 50g of boxed facial tissue in it, and raise the temperature to 85°C, and maintain it for 24h;

[0035] The third step is to take out the facial tissue and dry it, and immerse it in 50ml of 0.5mg / ml polydimethylsiloxane heptane solution. The ratio of dimethylsiloxane monomer Dow Corning 184 to the corresponding curing agent is: 10 :1;

[0036] In the fourth step, take out the tissue paper in the third step, dry it at room temperature and cure it at 60° C. for 1 hour.

Embodiment 2

[0038] The preparation method is basically the same as in Example 1, except that the concentration of graphene oxide is 5 mg / ml, the content of hydrazine is 214 mg, the temperature is raised to 95° C. and maintained for 1 hour, and a handkerchief is used.

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Abstract

The invention provides a preparation method of conductive and super-hydrophobic functional graphene paper.The method specifically comprises the steps that graphene oxide dispersion liquid is prepared, hydrazine hydrate is added into the graphene oxide dispersion liquid, flexible paper is immersed into the mixed liquid, the temperature is increased to 85 DEG C-95 DEG C and kept for 0.5 h-24 h, and then modified paper is taken out and dried; the paper is immersed into a heptane solution of polydimethylsiloxane, then taken out to be dried and finally cured at high temperature, and then the conductive and super-hydrophobic functional graphene paper is prepared.The paper is conductive and hydrophobic, and therefore the paper can be used for adsorbing trace oil on the water surface.

Description

technical field [0001] The invention belongs to the fields of new materials and environmental protection, and in particular relates to a preparation method of conductive and superhydrophobic graphene functional paper. Background technique [0002] With the development of industry, various oil leakage accidents often occur in the process of transportation and handling, which not only cause considerable economic losses, but also cause immeasurable damage to the ecological environment. And human beings often need to remove unnecessary oil in daily life. For example, in fish tanks, oil film is often produced due to the metabolism of fish and algae, which not only pollutes water quality, but also isolates the contact between water and air, which greatly reduces the dissolved oxygen content in water. resulting in the death of fish. Existing oil-absorbing felt and oil-absorbing cotton are not very good because of its adsorption effect, and people are still constantly researching a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H23/66D21H23/70D21H25/06D21H17/64D21H17/46
CPCD21H17/46D21H17/64D21H17/73D21H23/66D21H23/70D21H25/06
Inventor 孙立涛毕恒昌
Owner SOUTHEAST UNIV
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