Reversible wetting on metal substrate of electric-field induced liquid metal and application

Abstract

The invention discloses reversible wetting on a metal substrate of electric-field induced liquid metal and application, and belongs to the technical field of micro-nano technology and functional material preparation. A metal porous net surface with a micro-nano structure is prepared through an electrochemical deposition method, and a preparation method of the metal porous net surface is simple, iseasy in operation and is low in cost. The electric-field induced liquid metal can realize quick revisable wetting on a stainless steel porous screen surface of the micro-nano structure. Besides, reversible wetting property, on the stainless steel porous screen surface of the micro-nano structure, of the electric-field induced liquid metal is applied into a controllable liquid permeating apparatus, so that liquid penetration is flexibly controlled. In conclusion, the technical scheme protected by the invention realizes quick de-wetting of the liquid metal on the surface of the metal substrateand achieves the quick revisable wetting effect, and is suitable for market popularization and application.

Description

technical field [0001] The invention belongs to the technical field of micro-nano technology and functional material preparation, and specifically relates to the reversible wetting and application of electric field-induced liquid metal on metal substrates, in particular to the reversible wetting and application of electric field-induced liquid metal on micro-nano structured porous mesh metal substrates. The liquid metal rapid wettability switching system composed of the substrate is used for intelligent control of liquid transport. Background technique [0002] Liquid metal electrowetting, that is, the surface tension of liquid metal changes under the induction of an electric field, thereby causing deformation or driving on the substrate. It has great application potential in the preparation of flexible electronic products, pattern design, and liquid transportation control. attention of scientists. At present, the existing technology reports that liquid metal can achieve we...

AI Technical Summary

Problems solved by technology

At present, the existing technology reports that liquid metal can achieve wetting behavior on different substrates, and liquid metal has good dewetting properties on non-metallic substrates (such as PDMS, PMMA, etc.), while liquid metal can be used on metal substrates. Good electrowetting behavior can be used for applications such as driving, but due to the easy dissolution reaction between the liquid metal and the metal substrate, the liquid metal has high adhesion on the metal surface, making it difficult to achieve dewetting, so that the liquid state The research and practical application of metals on metal substrates (electrodes) has been greatly restricted

Therefore, how to achieve rapid dewetting of liquid metal on the surface of metal substrates is still a great challenge.

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