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Continuous preparation device and method for self-twisting nanofiber yarn

A nanofiber and preparation device technology, applied in the field of textile processing, can solve the problems of poor continuous production stability of nanofiber yarn, low mechanical strength of the yarn, complicated twisting process, etc., and achieves tight fiber cohesion, high production efficiency, High degree of orientation effect

Active Publication Date: 2018-11-13
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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.

Method used

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  • Continuous preparation device and method for self-twisting nanofiber yarn
  • Continuous preparation device and method for self-twisting nanofiber yarn
  • Continuous preparation device and method for self-twisting nanofiber yarn

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specific Embodiment 1

[0045] Next, the spinning solution prepared by ethyl cellulose and ethanol / water solution is used for spinning. The spinning solution with a concentration of 20% is injected into the spinneret 7 by a peristaltic pump, the spinneret 7 is connected to the positive pole of the electrostatic generator 1, and the distance between the spinneret 7 and the top of the funnel-shaped cluster 10 is 10 cm , the angle of the air shower 4 and 5 is 30°, the opening angle of the funnel-shaped cluster 10 is 60°, the electrostatic generator 1 is turned on, the voltage is adjusted to 6kV, the motor 2 is started, and the rotating speed is adjusted to 2000rpm, when the self-twisting zone 9 appears At this time, the winding roller 11 is started, the twisted nanofiber yarn is pulled out through the guide roller 12 under the airflow traction, the winding motor is started, and the set speed is 80rpm, and the nanofiber yarn is continuously collected.

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01H4/02D01H1/08D01D5/00D01D5/18
CPCD01D5/003D01D5/0069D01D5/0092D01D5/18D01H1/08D01H4/02
Inventor 杨斌侯腾李祥龙陆一神
Owner ZHEJIANG SCI-TECH UNIV
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