Preparation method of super-hydrophobic carbon nanotube film

A carbon nanotube film, super-hydrophobic technology, applied in the field of super-hydrophobicity, can solve the problem of high cost, achieve the effects of low cost, short cycle and simple preparation process

Active Publication Date: 2021-07-06
CHANGZHOU UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to overcome the shortcomings of the high cost of the existing preparation methods, the present invention provides a method for preparing superhydrophobic carbon nanotube films

Method used

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Experimental program
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Embodiment Construction

[0014] A method for preparing a superhydrophobic carbon nanotube film, characterized in that the steps of the method are:

[0015] (a) Depositing a carbon nanotube film on a polystyrene substrate by spray gun spraying method;

[0016] (b) cleaning the substrate with deionized water, and rolling the surface of the carbon nanotube film with a roller;

[0017] (c) Heat the polystyrene substrate on which the carbon nanotube film is deposited in a convection oven at a heating temperature of 150 degrees Celsius for 20 seconds to induce biaxial shrinkage and wrinkling of the substrate;

[0018] (d) Spin-coat a layer of polytetrafluoroethylene film on the shrinking carbon nanotube film, then put it in an acetone bath with a temperature of 75 degrees Celsius for 30 minutes, and put it in a toluene bath with a temperature of 65 degrees Celsius for 10 minutes to remove polystyrene vinyl substrate;

[0019] (e) Evaporating a layer of fluorosilane on the surface of the transferred carbon...

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Abstract

The invention relates to the super-hydrophobic field, in particular to a preparation method of a super-hydrophobic carbon nanotube film. The method comprises the following steps: (a) depositing a layer of carbon nanotube film on a polystyrene substrate by adopting a spray gun spraying method; (b) cleaning the substrate with deionized water, and rolling the surface of the carbon nanotube film with a roller; (c) putting the polystyrene substrate on which the carbon nanotube film is deposited into a convection oven for heating, and inducing biaxial shrinkage and wrinkling of the substrate; and (d) spin-coating a layer of polytetrafluoroethylene film on the shrunk carbon nanotube film, and then putting the shrunk carbon nanotube film into an acetone bath and a toluene bath to remove the polystyrene base material. According to the method, preparation of the large-area super-hydrophobic carbon nanotube film surface can be achieved, and the wrinkle structures exist stably, have conductivity and can be applied to low-viscosity ice-resistant electromagnetic shielding materials. A stable wrinkle structure is obtained by heating and shrinking an easily-shrunk base material, and the super-hydrophobicity is realized by utilizing the microstructure; the preparation process is simple, low in cost and short in period.

Description

technical field [0001] The invention relates to the superhydrophobic field, in particular to a preparation method of a superhydrophobic carbon nanotube film. Background technique [0002] Aqueous films and coatings, and more specifically, superhydrophobic films and coatings, have gained considerable attention in recent years due to several attractive qualities. Highly hydrophobic surfaces have been recognized in nature, probably most commonly on lotus leaves and cicada wings. Due to their hydrophobic properties, the lotus leaf is able to self-clean by washing away dust particles and debris as small water droplets roll off its surface. This self-cleaning capability is desirable in many modern applications. However, the cost of the existing superhydrophobic membrane preparation method is relatively high. Contents of the invention [0003] In order to overcome the disadvantage of high cost of the existing preparation methods, the present invention provides a preparation me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B81C1/00C23C14/06H05K9/00C23C14/24B82Y30/00B82Y40/00
CPCB81C1/00349B81C1/0046B81C1/00849B81C1/00492H05K9/0081C23C14/24C23C14/0694B82Y30/00B82Y40/00Y02P20/10
Inventor 弓晓晶许敬郭国标
Owner CHANGZHOU UNIV
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