Continuous preparation device and method for self-twisting nanofiber yarn

Abstract

The invention relates to the technical field of textile processing and aims at providing a continuous preparation device and method for self-twisting nanofiber yarn. The device comprises a verticallymounted motor, and a rotating shaft at the bottom of the motor is connected to a metal spinneret through a coupler; a plurality of filament spraying holes are uniformly formed in a circumferential direction of the spinneret; a bundling system comprises a funnel-shaped bundling apparatus, a fan and at least two air spraying heads; the funnel-shaped bundling apparatus is connected to a negative electrode of an electrostatic generator through a cable; a through hole is formed in the center of a sinking part, and the through hole, the spinneret and the rotating shaft of the motor are located on the same vertical axis; the plane where the filament spraying holes in the spinneret are located is arranged in parallel with a planar part of the funnel-shaped bundling apparatus; a winding collectionsystem comprises a yarn guide roller and a winding roller, and the yarn guide roller is located below the through hole of the funnel-shaped bundling apparatus. According to the device and method, nanofibers are prepared by electrostatic centrifugal spinning, the production efficiency is high, and raw materials are soluble and meltable; the nanofiber yarn has the advantages of high orientation degree, good continuity, simultaneous twisting, high efficiency and a short flow.

Description

technical field [0001] The invention belongs to the technical field of textile processing, and in particular relates to a device and method for continuously preparing self-twisting nanofiber yarns using electrostatic centrifugal spinning technology. Background technique [0002] Nanofibers have the characteristics of surface effect, small size effect, quantum size effect, quantum tunneling effect, high surface activity and high porosity, have excellent optical, thermal, electrical and magnetic properties, and can be flexibly modified for functional modification. It has great application potential in high-efficiency filtration, biomedicine, smart sensors and other fields, so it has received extensive attention. If nanofibers can be further processed into yarns that can meet modern textile processing, so as to process various functional fabrics and fabrics, it will inevitably break through the performance of traditional textiles and greatly increase the added value of products...

AI Technical Summary

Problems solved by technology

The invention can solve the problems of poor continuous production stability of nanofiber yarn, complex twisting process, poor twisting effect and low mechanical strength of the yarn in the prior art.

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