A kind of preparation method of superhydrophobic surface

A technology of super-hydrophobic surface and substrate surface, which is applied in the direction of liquid-repellent fibers, ultrasonic/sonic fiber treatment, textiles and papermaking, etc., which can solve the problem of no longer showing super-hydrophobic performance, and large differences between batches and batches , mechanical strength is not ideal, etc., to achieve stable super-hydrophobic effect, low production cost, and tight combination

Active Publication Date: 2018-04-13
GUANGZHOU BIOFIL AIR PURIFICATION MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to its special microscopic rough structure, the artificial superhydrophobic surface has unsatisfactory mechanical strength, and when this superhydrophobic surface is exposed to the atmosphere for a long time, it will be affected by various pollutants or dust, coupled with light exposure. The continuous effects of a series of factors such as radiation and radiation cause the surface to no longer exhibit superhydrophobic properties; most of the preparation methods use more complicated steps, expensive equipment, raw materials, etc., and there are large differences between batches and batches

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A method for preparing a superhydrophobic surface, comprising the steps in turn:

[0027] 1) Prepare the original solution: add perfluorooctyl ethyl acrylate into the container, seal it well and pour argon into the container at the same time;

[0028] 2) Stock solution pretreatment: inject the stock solution into the pipeline and preheat it at 120°C for 120 minutes to vaporize the stock solution;

[0029] 3) Plasma treatment: Under an argon atmosphere, conduct plasma treatment on the surface of polystyrene substrate, the conditions of plasma treatment are: vacuum degree 10mT, temperature 25°C, gas flow rate 50sscm, treatment power 60W, treatment time 100s;

[0030] 4) Grafting treatment: uniformly spray the stock solution treated in step 2) onto the surface of the polystyrene substrate treated in step 3) in a spraying manner, and simultaneously carry out plasma treatment on the surface of the polystyrene substrate, and the plasma The processing conditions are: vacuum ...

Embodiment 2

[0033] A method for preparing a superhydrophobic surface, comprising the steps in turn:

[0034] 1) Prepare the original solution: add perfluoroethyl octyl acrylate into the container, seal it well and pour helium into the container at the same time;

[0035] 2) Stock solution pretreatment: inject the stock solution into the pipeline, and preheat it at 130°C for 120 minutes to vaporize the stock solution;

[0036] 3) Plasma treatment: Under the atmosphere of helium, plasma treatment is performed on the surface of polypropylene non-woven fabric. The conditions of plasma treatment are: vacuum degree 25mT, temperature 45°C, gas flow rate 60sscm, treatment power 120W, treatment time 200s;

[0037] 4) Grafting treatment: uniformly spray the stock solution treated in step 2) onto the surface of the polypropylene non-woven fabric treated in step 3) by spraying, and simultaneously perform plasma treatment on the surface of the polypropylene non-woven fabric. The processing condition...

Embodiment 3

[0040] A method for preparing a superhydrophobic surface, comprising the steps in turn:

[0041] 1) Prepare the stock solution: add 2-perfluorooctyl acrylate into the container, seal it well and pour argon into the container at the same time;

[0042] 2) Stock solution pretreatment: inject the stock solution into the pipeline and preheat it at 140°C for 120 minutes to vaporize the stock solution;

[0043] 3) Plasma treatment: Under an argon atmosphere, conduct plasma treatment on the surface of polystyrene substrate, the conditions of plasma treatment are: vacuum degree 35mT, temperature 45°C, gas flow rate 80sscm, treatment power 200W, treatment time 300s;

[0044] 4) Grafting treatment: uniformly spray the stock solution treated in step 2) onto the surface of the polystyrene substrate treated in step 3) in a spraying manner, and simultaneously carry out plasma treatment on the surface of the polystyrene substrate, and the plasma The processing conditions are: vacuum degree...

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PUM

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Abstract

The invention discloses a method for preparing super-hydrophobic surfaces. The method includes steps of 1), pre-treating stock solution, to be more specific, injecting the stock solution into a pipeline and preheating the stock solution under the condition of the temperatures of 80-150 DEG C to vaporize the stock solution; 2), carrying out plasma treatment on the surfaces of base materials in the atmosphere of inert gas; 3), carrying out grafting treatment, to be more specific, uniformly spraying the stock solution on the surfaces of the base materials in a mist spray manner, and simultaneously carrying out plasma treatment on the surfaces of the base materials to form super-hydrophobic layers with nano-structures on the surfaces of the base materials. The method for preparing the super-hydrophobic surfaces has the advantages that the method is simple and is high in operability, and the super-hydrophobic surfaces prepared by the aid of the method are good in weather resistance, high in mechanical strength and long in service life.

Description

technical field [0001] The invention relates to the field of surface preparation, in particular to a method for preparing a superhydrophobic surface. Background technique [0002] Wettability is one of the important characteristics of material surfaces. According to the wettability of water on the material surface, the material surface can be divided into hydrophilic surface and hydrophobic surface. It is generally considered that a surface with a water droplet contact angle greater than 150 is called a superhydrophobic surface. This special surface has extremely broad application prospects in daily life and industrial production, such as anti-fog on glass surface, self-cleaning of traffic lights, lubrication of ship hull surface and anti-fouling performance of textiles, etc. In recent years, superhydrophobic surfaces have attracted more and more attention due to their unique self-cleaning properties and good biocompatibility. [0003] The preparation of superhydrophobic ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M14/10D06M10/02C08J7/16B29C59/14C08L25/06
CPCB29C59/14C08J7/16C08J2325/06D06M10/025D06M14/10D06M2200/12
Inventor 方想元袁晔
Owner GUANGZHOU BIOFIL AIR PURIFICATION MATERIAL CO LTD
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