Silver nanowire-polyperfluorinated ethylene propylene super-hydrophobic porous membrane and preparation method

Abstract

The invention provides a silver nanowire-polyperfluorinated ethylene propylene super-hydrophobic porous membrane and a preparation method. The method comprises the following steps: first, preparing acellular polystyrene porous membrane according to a breath figure method, and performing reverse repeated etching by taking the polystyrene porous membrane as a template to produce a polyperfluorinated ethylene porous membrane with micro-nanograde bulge array, and further depositing a layer of etching silver nanowire orientation film on the surface of the polyperfluorinated ethylene porous membrane, thereby producing the silver nanowire-polyperfluorinated ethylene propylene super-hydrophobic porous membrane. Compared with the traditional method, the super-hydrophobic porous membrane prepared according to the method of the invention is not only large in water contact angle, small in rolling angle, and strong in super-hydrophobic capacity and self-cleaning ability, but also has high antibacterial capability; the preparation method is simple, the membrane pore structure can be dynamically controlled or regulated, and the pollution cannot be produced.

Description

technical field [0001] The invention belongs to the technical field of composite materials, and provides a silver nanowire-polyperfluoroethylene propylene superhydrophobic porous membrane and a preparation method thereof. Background technique [0002] In recent years, the superhydrophobic phenomenon of plant leaves has attracted people's attention. The so-called superhydrophobic ability of plants means that the leaves of plants have significant hydrophobicity, desorption, anti-sticking, self-cleaning functions, etc. The reason why the lotus "comes out of the mud without being stained" is because its surface has a layer of super-hydrophobic film, which can make it have the function of self-cleaning. Superhydrophobic membrane materials have excellent properties such as waterproof, anti-fouling, and can reduce the viscosity of fluids, and are currently one of the hotspots in the research of functional materials. [0003] The basic theoretical research on superhydrophobic memb...

AI Technical Summary

Problems solved by technology

The antibacterial performance of the superhydrophobic porous membrane made by the invention is poor, which affects the durability of use

[0007] In summary, the preparation of super-hydrophobic porous membranes in the existing technology has the disadvantages that the membrane pore structure is difficult to control or adjust, the preparation process is complicated, and the prepared membrane material does not have antibacterial function. Therefore, a superhydrophobic membrane with antibacterial properties has been developed. Porous membranes are of great significance

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