Method for preparing metal micro-nano fibers through centrifugal melt electrostatic spinning

Abstract

The invention belongs to the field of electrostatic spinning, and particularly relates to a novel method for preparing metal micro-nanofibers through centrifugal melt electrostatic spinning. The method comprises the following steps: 1) putting a pure metal block with a certain mass into a customized crucible, covering an end cover, installing a thermocouple, starting a power supply of a comprehensive console, turning on an electromagnetic induction coil heating switch, and heating the customized crucible until the metal block is completely melted; (2) starting a high-voltage power supply and a high-speed motor, driving the customized crucible to rotate under the action of a rotating shaft so as to provide centrifugal force, and enabling the metal melt in the customized crucible to uniformly fall on a collecting plate in a fiber form through a porous spray head under the dual action of the centrifugal force and high-voltage electrostatic force, and the obtained long metal fiber has the advantages of small fiber diameter, wide application range and the like. According to the method, metal fiber preparation is simple and convenient, the production cost is low, the spinning efficiency is high, and thinner and longer micro-nano-scale metal fibers can be produced.

Description

technical field [0001] The invention relates to a method for preparing metal micro-nano fibers by a centrifugal melt electrospinning process, and belongs to the field of electrospinning. Background technique [0002] The micro-nano metal fiber felt prepared by electrospinning has a porous structure, and a large number of interconnected pores inside it can make the sound wave diffuse and consume inside the material, and its high specific surface area is conducive to the collision consumption between the middle and low frequency sound waves and the fiber surface. Therefore, the micro-nano metal fibers prepared by electrospinning have significant advantages in absorbing medium and low frequency sound waves. In addition, metal fiber also has many advantages such as good mechanical strength, high temperature resistance, impact resistance, etc., and has a wider range of applications. Metal fibers with a fiber diameter of micro and nanometers can absorb sound and reduce noise in a...

AI Technical Summary

Problems solved by technology

However, the surface quality of the fiber is poor, there are obvious precipitates and grooves, and the fiber breaking strength and elongation are small. At this time, it is necessary to anneal the electroplated wire and use a continuous annealing furnace with a water cooling device for annealing. to improve

[0005] At present, various methods used to prepare metal fibers have problems such as low production efficiency, high cost, and large diameter and insufficient length of the produced fibers. In order to solve the above problems, propose the invention

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