Preparation method of hydrophobic anti-fog surfaces

An anti-fog and hydrophobic technology, which is used in the process of producing decorative surface effects, manufacturing microstructure devices, decorative arts, etc., can solve the problems of being easily damaged by external forces, complicated preparation processes, etc., to reduce production costs, size and structure. Simple and beneficial to industrialized large-area production and application

Inactive Publication Date: 2018-01-19
JILIN UNIV
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AI Technical Summary

Problems solved by technology

[0003] At present, the hydrophobic anti-fog surface is mainly constructed on the surface of the hydrophobic material with a micro-nano composite structure. However, the structure on this surface is easily damaged by external forces, and its preparation process is relatively complicated.

Method used

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  • Preparation method of hydrophobic anti-fog surfaces
  • Preparation method of hydrophobic anti-fog surfaces
  • Preparation method of hydrophobic anti-fog surfaces

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Embodiment Construction

[0039] Such as figure 1 And shown, preparation method of the present invention comprises the following steps:

[0040] 1. Cleaning of the glass substrate: First, in order to improve the adhesion of the photoresist to the glass substrate and obtain a smoother film; ultrasonically wash the glass substrate for 10 minutes to remove organic matter on the surface of the glass substrate; secondly, put the glass substrate in absolute ethanol Ultrasonic shock cleaning for 10 minutes to remove residual acetone on the surface of the glass substrate; then shock-wash the glass substrate in deionized water for 10 minutes to remove inorganic substances on the surface of the glass substrate; To increase the adhesion between photoresist and glass substrate surface;

[0041] 2. Coating SU-8 2005 photoresist: Coat SU-8 2005 photoresist on the glass substrate treated in step 1; put it in a hot baking plate and bake it, and then cool the glass substrate naturally to room temperature;

[0042] 3....

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Abstract

The invention relates to a preparation method of hydrophobic anti-fog surfaces, and belongs to the technical field of anti-fog surface and mico-nano manufacturing. An ultraviolet lithography technology and a soft lithography technology are combined in preparation of the hydrophobic anti-fog surfaces. The preparation method comprises the steps that a micro square hole array structure is prepared bytaking SU-8 2005 photoresist as a base material and adopting the ultraviolet lithography technology, wherein the substrate can be repeatedly used; and the micro square array structure is copied by taking PDMS a structure material to obtain a micro square column array structure, and different hydrophobic anti-fog surfaces can be obtained by adjusting the size and interval of a micro square columnarray. The structure of the anti-fog surfaces prepared through the method is not prone to be destroyed, the anti-fog surfaces show the good transmittance, hydrophobicity and anti-fog performance, andthe preparation method is simple in technology, controllable in experiment parameter and very beneficial for industrialized large-area production and application.

Description

technical field [0001] The invention relates to a method for preparing a hydrophobic anti-fog surface, and belongs to the technical field of anti-fog surfaces and micro-nano manufacturing. Background technique [0002] Hydrophilic or even super-hydrophilic anti-fog surfaces have received widespread attention. Fog droplets will spread rapidly on the surface of the material to form a thin water film, thereby reducing light scattering and maintaining the transmittance of the material surface. However, in inclement foggy weather, these surfaces may experience phenomena such as frosting or condensation of water droplets. Hydrophobicity refers to the ability to repel water. When the contact angle between the droplet and the surface is greater than 90 degrees, the surface is said to be hydrophobic. The hydrophobic and anti-fog surface makes use of the gravity of the droplet itself and its low adhesion. Surface-attached droplets roll off the surface of the material. [0003] At pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B81C1/00
Inventor 牛士超冯晓明韩志武张俊秋穆正知李博王泽焦志彬王大凯张斌杰
Owner JILIN UNIV
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