A kind of preparation method of copper mesh with oil-water separation function

Abstract

The invention discloses a method for preparing a copper net with an oil-water separation function. The method comprises the following steps: (1) performing ultrasonic wave cleaning on a copper piece to be processed in deionized water; (2) ablating the surface of the copper piece cleaned in the step (1) with pulse optical fiber laser, and forming a through hole array in a certain arrangement rule; (3) with identical laser parameters of the step (2), changing a laser scanning route, scanning the surface of the copper piece in a laser ray scanning mode, and forming secondary hybridization micro-nano structures on the surface of the copper piece, so as to obtain a basic copper net; (4) performing surface hydrophobization treatment on the basic copper net in a hydrophobing agent, and drying, so as to obtain the copper net with the oil-water separation function. The method is flexible and convenient, laser processing parameters are controlled through a computer, the copper net with surface through holes and surface micro-nano structures is prepared, in addition, the sizes of the through holes, the sizes and the distribution of micro-nanoparticles, and the like, can be regulated and controlled by changing parameters.

Description

technical field [0001] The invention specifically relates to a method for preparing a copper mesh with the function of separating oil and water. Background technique [0002] The issue of water resources has always been widely concerned by all walks of life, and the protection and purification of water resources is our eternal topic. In recent years, water pollution has become increasingly serious due to factors such as industrial production, domestic discharge, and oil spills. Oil-water separation, as the primary link to deal with the problem of oil pollution in water resources, has attracted the attention of researchers. The emergence of bionic superhydrophobic surface provides the possibility for a new oil-water separation method based on the principle of hydrophobicity and lipophilicity. Using the superhydrophobic surface characteristics, a superhydrophobic surface with micropores is prepared, so that oil can easily pass through but water cannot pass through, thus To a...

AI Technical Summary

Problems solved by technology

However, in general, water accounts for a large proportion in oil-water separation mixtures. Compared with the hydrophobic-lipophilic principle, the hydrophobic and hydrophilic devices need to separate more liquids, which reduces the separation efficiency.

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