Preparation method of microstructure surface with alternate hydrophilic-hydrophobic distribution

Abstract

The invention belongs to the technical field of marine antifouling material preparation, and particularly relates to a preparation method of a microstructure surface with alternate hydrophilic-hydrophobic distribution. The method is characterized in that a monocrystalline silicon surface is covered by a photomask with a set pattern obtained through electron beam etching, and the set pattern with aset depth is obtained through etching; the etched monocrystalline silicon surface is used as a female die, and a hydrophobic organic silicon microstructure surface with a set structure is obtained through etching rollover; and through processes including plasma processing, hydrogen peroxide activation, hydrophobic liquid hole sealing, washing and hydrogel filling, an organic silicon microstructure is filled with hydrogel in an orderly manner, so that the regularly-structured microarray surface with the alternate hydrophilic-hydrophobic distribution is obtained. The method has the advantages that the height of the hydrogel in a microarray can be controlled to adjust projection area proportions and space area proportions of hydrophilic areas and hydrophobic areas in the microstructure surface with the alternate hydrophilic-hydrophobic distribution, so that a hydrophilic-hydrophobic microstructure is achieved, the broad-spectrum antifouling performance of a microstructure material is improved, and the method can be used for preventing and removing biofouling on the surfaces of ships and marine structures.

Description

Technical field: [0001] The invention belongs to the technical field of preparation of marine antifouling materials, and in particular relates to a method for preparing a microstructure surface with interactive distribution of hydrophilic and hydrophobic, and prepares a microstructure surface with interactive distribution of hydrophilic hydrogel and hydrophobic organic silicon, which is used for preventing ships and marine structures Biofouling of surfaces. Background technique: [0002] Marine biofouling is a phenomenon in which sessile and clinging marine organisms grow on the bottom of a ship or on the surface of man-made facilities and cause adverse effects. Any structure submerged in seawater will suffer from the problem of fouling organisms. The adhesion of fouling organisms on the surface of the structure will bring great harm, such as increased ship navigation resistance, pipe blockage, and reduced thermal conductivity of heat exchangers. It is of great significance...

AI Technical Summary

Problems solved by technology

Chinese patent 201010135154.3 discloses an antifouling coating for ships and marine facilities that can control the release rate of Cu+ by adjusting the formula ratio of flake glass or adjusting the percentage of flake glass in the antifouling paint; Chinese patent 200910030819.1 The preparation method of disclosed a kind of low toxicity marine antifouling coating uses Cu 2 O hollow submicrospheres alone, or embedded non-toxic organic antifouling agent as antifouling agent to prepare low-toxic marine antifouling coatings; the above-mentioned patented products all have good antifouling effect, but due to antifouling agents such as tin or copper Accumulation in the marine environment will affect the ecological environment, and its use has been gradually banned or restricted. It is urgent to develop low-toxic or non-toxic green anti-pollution technology means

Due to the different structural features of selective rejection by different fouling organisms (Biofouling, 2006, 22:55-60), it is still difficult to achieve broad-spectrum antifouling by only using microstructure design

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