Device and method for continuously preparing nanofiber covering yarn

Abstract

The invention relates to a device and a method for continuously preparing nanofiber covering yarn. The device comprises a frame, and a high-voltage alternating electric field spinning system and a covering yarn forming system which are mounted on the frame, wherein the high-voltage alternating electric field spinning system is mounted on the lower portion of the covering yarn forming system; the high-voltage alternating electric field spinning system is used for forming a nanofiber bundle and spraying the nanofiber bundle to core yarn; the covering yarn forming system is used for inputting, twisting and outputting the core yarn; and the high-voltage alternating electric field spinning system and the covering yarn forming system are both connected into a control box. The device and method have the advantages that a high-voltage alternating electric field is adopted, and through the design of a spinning nozzle, nanofiber bundles can be generated, the yield of electrospinning is greatly increased, and collection of nanofiber is facilitated. The covering yarn is formed by collecting the nanofiber bundles through a core yarn balloon wrapping technology, and efficient and orderly collection of the nanofiber is facilitated.

Description

technical field [0001] The invention relates to a device and method for continuously preparing nanofiber core-spun yarn, and relates to the fields of electrostatic spinning technology and spinning technology. Background technique [0002] Nanofibers prepared by electrospinning have excellent performance and have broad application prospects in the fields of air filtration, protection, energy, electronic devices, and bioengineering. However, there are currently two major technical problems that hinder the industrial application of electrospinning nanofibers: one is that the output of nanofibers prepared by traditional electrospinning technology is low, and it is difficult to meet the huge demand for nanofiber materials in industrialization; the other is that there is no batch processing The equipment and technology of nanofibers allow them to be built into stable 3D structures. Therefore, the present invention uses high-voltage alternating electric field needle-free spinning ...

AI Technical Summary

Problems solved by technology

[0004] In summary, although there are many methods of electrospinning into yarns, needle electrospinning is still the main method at present, and the output of nanofiber yarns is low; Performance cannot meet processing and application

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