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Super-hydrophotic magnetic carbon film, its preparing method and use

A magnetic carbon and super-hydrophobic technology, which is applied to the surface coating liquid device, pretreatment surface, special surface, etc., can solve the problem that the conductivity and magnetism are easily damaged by rain, the surface of the material is easily polluted, and it takes a lot of manpower and effort. Material resources and other issues, to achieve the effect of low cost, simple device and convenient operation

Inactive Publication Date: 2006-10-25
INST OF CHEM CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the electrical conductivity and magnetism of the magnetic carbon nanomaterials prepared by the prior art, which are easily damaged by rainwater, thereby affecting its normal use; and the surface of the material is easily polluted, which requires a lot of manpower and material resources to process. , so as to use the materials with a superhydrophobic surface with a contact angle greater than 150° to be waterproof, anti-pollution and prevent current conduction, etc., to provide a material that not only has magnetic and electrical conductivity, but also has superhydrophobic properties, is not susceptible to pollution and rainwater Destroyed Superhydrophobic Magnetic Carbon Films Containing Fe3O4

Method used

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  • Super-hydrophotic magnetic carbon film, its preparing method and use

Examples

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Effect test

Embodiment 1

[0039] 1. Add polyvinyl alcohol (PVA) into deionized water, fully stir and dissolve to prepare a 10 wt% polyvinyl alcohol solution. Add ferrous acetate (FeAc 2 ), formulated to contain FeAc 2 The weight percentage is 30wt% precursor solution.

[0040]2. Pack the precursor solution prepared in step 1 into the liquid feeding device of the existing spinning device, insert the positive electrode into the solution, connect the negative electrode to the grounded receiving device, and adjust the spinning working distance (needle tip to The distance between the receiving devices) is 8cm; turn on the high-voltage power supply, adjust the spinning voltage to 10kV, the precursor mixed solution forms a Taylor cone at the spinneret of the jetting device, and divides into jet streams at the spinneret, accompanied by As the solvent volatilizes, solidified precursor composite nanofibers with a diameter of 180 nanometers are obtained on the receiving device, and the ferrous salt is covered b...

Embodiment 2

[0045] 1. Add polyvinyl alcohol (PVA) into deionized water, fully stir and dissolve to prepare a 20 wt% polyvinyl alcohol solution. Add ferrous acetate (FeAc 2 ), formulated to contain FeAc 2 The weight percentage is 50wt% precursor solution.

[0046] 2. Pack the precursor solution prepared in step 1 into the liquid feeding device of the existing spinning device, insert the positive electrode into the solution, connect the negative electrode to the grounded receiving device, and adjust the spinning working distance (needle tip to The distance between the receiving devices) is 20cm; turn on the high-voltage power supply, adjust the spinning voltage to 25kV, the precursor mixed solution forms a Taylor cone at the spinneret of the jetting device, and splits into jet streams at the spinneret, accompanied by As the solvent volatilizes, solidified precursor composite nanofibers with a diameter of 200 nanometers are obtained on the receiving device, and the ferrous salt is covered ...

Embodiment 3

[0050] 1. Add polyacrylonitrile (PAN) into N,N-dimethylformamide (DMF), fully stir and dissolve to prepare a 10wt% polyacrylonitrile solution by weight. Then add iron acetylacetonate (Fe(Acc) 3 ), formulated to contain Fe(Acc) 3 The weight percentage is 30wt% precursor solution.

[0051] 2. Pack the precursor solution prepared in step 1 into the liquid feeding device of the existing spinning device, insert the positive electrode into the solution, connect the negative electrode to the grounded receiving device, and adjust the spinning working distance (needle tip to The distance between the receiving devices) is 8cm; turn on the high-voltage power supply, adjust the spinning voltage to 10kV, the precursor mixed solution forms a Taylor cone at the spinneret of the jetting device, and divides into jet streams at the spinneret, accompanied by As the solvent volatilized, solidified precursor composite nanofibers with a diameter of 200 nanometers were obtained on the receiving de...

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Abstract

The present invention relates to a superhydrophobic magnetic carbon membrane. Its surface has net-like structure formed from spherical projection nano fibre, in which the diameter of nano fibre is 60-100 nano, the diameter of spherical projection is 20-30 nano. Said superhydrophobic magnetic carbon membrane is prepared by using electrostatic spinning technique and low-temperature carburization technique. Said superhydrophobic magnetic carbon membrane has electric conductivity, its conductivity is 0.31-5.6 s / cm. It can be used for treatment of antifouling and water-proofing surface, also can be used in sensor, nano probe, antistatic material and wave-absorbing material.

Description

technical field [0001] The invention belongs to the field of functional materials, and in particular relates to a magnetic carbon film with a superhydrophobic surface, and a method for preparing the superhydrophobic magnetic carbon film on a large scale and at low cost by utilizing electrospinning and low-temperature carbonization technology, And the application of the superhydrophobic magnetic carbon film. Background technique [0002] Since S.Iijima discovered carbon nanomaterials in 1991, due to their unique electrical conductivity, extremely high mechanical strength, large specific surface area, good catalytic properties, and strong microwave absorption capacity, people have attracted great attention. focus on. However, since its performance is affected by its structure, its application in practical processes is limited. At present, the method of filling or coating organic and inorganic functional materials is usually used, so that it has a wide range of applications. ...

Claims

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Application Information

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IPC IPC(8): B05D5/00B05D1/04B05D3/00
Inventor 朱英张敬畅郑咏梅翟锦江雷
Owner INST OF CHEM CHINESE ACAD OF SCI
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