Hydrophobic treatment method for material surface

Abstract

The invention discloses a hydrophobic treatment method for a material surface, and relates to the technical field of surface conformal coating. The method is completed in a material microscopic surface conformal coating system and specifically comprises the steps that 1) a to-be-plated material is pretreated; 2) the to-be-plated material subjected to pretreatment is placed on a sample table; 3) acirculating water cooling system is started; 4) a vacuum control system is started; 5) an electric heating alloy wire heating system is started; and 6) an air inlet supply system is started, reactantmonomers subjected to gasification and initiators are separately introduced into a reaction chamber according to a preset flow rate, the reaction time is set, and the material surface is plated with anano-scale hydrophobic film coating through reactants. The method has the effects and the advantages that 1) the film formed by the method is nano-scale, and the thin film coating can be conformal with raw materials, is compact and uniform, and is controllable in thickness; 2) a high-vacuum environment is not needed, and the operation range is wide; 3) the operation is simple and convenient; and4) the hydrophobic modification effect is good.

Description

technical field [0001] The invention belongs to the technical field of surface conformal coating, and in particular relates to a material surface hydrophobic treatment method. Background technique [0002] Hydrophobicity is one of the important characteristics of the material surface, which is determined by the chemical composition of the material and the surface geometry. Its properties are usually evaluated by water contact angle. In general, a surface whose contact angle of water on a solid surface exceeds 90° is called a hydrophobic surface. When the contact angle of water on a solid surface exceeds 150°, the surface is called a superhydrophobic surface. [0003] With the development of society, the requirements for the hydrophobicity of materials in industry and life are getting higher and higher. For many applications such as waterproof clothing, packaging materials, waterproof electronics, self-cleaning surfaces, anti-fog surfaces, etc., a high water contact angle ...

AI Technical Summary

Problems solved by technology

However, the plasma generation process will be accompanied by high energy, which will have a greater destructive effect on the fluorine-containing groups required for surface hydrophobic modification. The chemical structure of the film cannot be precisely controlled and the required functional groups are not easy to preserve; The temperature resistance requirements of the permanent material are also higher

In addition, the energy required for the PECVD reaction is high, which is not conducive to the control of surface hydrophobic modification conditions and modification costs

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