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Device for producing composite fibers through melt-electrospinning

A melt electrospinning, composite fiber technology, applied in fiber processing, textile and papermaking, filament/thread forming, etc., to achieve the effect of simplifying the production process

Inactive Publication Date: 2010-08-25
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the present invention can spin smoothly without using solvent, it can solve a series of problems caused by the use of solvent in solution electrospinning

Method used

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  • Device for producing composite fibers through melt-electrospinning
  • Device for producing composite fibers through melt-electrospinning
  • Device for producing composite fibers through melt-electrospinning

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Embodiment Construction

[0014] The present invention adopts a device for producing composite fibers by melt electrospinning. The schematic diagram of the device is shown in Figure 1. The capillary tube (3) with a tight fit, the nozzle (4) which is screwed to the barrel (6) and can be easily disassembled, the heating ring (5) for heating the polymer melt, the barrel (6) of steel structure, The piston shaft (7), the pressurizing device (8), the end cover (9) carrying the pressurizing device (8), the temperature sensor (10), Output the very positive high voltage electrostatic generator (11). The distance between the melt outlet of the capillary (3) and the receiving device (1) is greater than 2 cm. The converging device shown in Figure 2 is used to produce side-by-side composite yarns, the converging device shown in Figures 3 and 4 is used to produce sheath-core composite yarns, and different polymers flow through the inside and outside of the conduit (12).

[0015] Spinning step: first, the barrel (6...

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Abstract

The invention discloses a device for producing composite fibers through melt-electrospinning, and belongs to the field of electrospinning. The device mainly comprises a receiving device, a converging device, a capillary tube, a nozzle, a heating ring, a charging barrel, a piston shaft, a pressure device, an end cover, a temperature sensor, a high voltage static generator and the like, wherein the receiving device is positioned under the capillary tube, and is connected with the anode of the high voltage static generator; the other electrode of the high voltage static generator is grounded; the capillary tube is in cone close fit with the converging device, and is connected with the ground through an out wire; the nozzle is in screw connection with the converging device and the charging barrel; the heating ring is coated on the surface of the charging barrel; the temperature sensor is in threaded connection with the charging barrel; the end cover is in threaded connection with the piston shaft; the pressure device is positioned on the end cover; and the distance between the smelt outlet of the capillary tube and the receiving device is more than 2cm. The device can simultaneously carry out smelt-electrospinning on two or more polymers so as to produce side-by-side or core-sheath composite fibers.

Description

technical field [0001] The invention relates to a device for producing composite fibers, which belongs to the field of electrostatic spinning. Background technique [0002] As people's demand for nanofibers continues to increase, researchers from various countries have explored a variety of methods for preparing nanofibers, among which electrospinning is considered to be the simplest and most effective method for preparing nanofibers, and there are currently more than 30 methods A polymer has successfully produced ultrafine fibers by this method, the smallest diameter of which can reach tens of nanometers. Electrospinning includes solution electrospinning and melt electrospinning. Most of the researches on electrospinning are concentrated on solution electrospinning, while there are few researches on electrospinning of polymer melts. [0003] In order to meet functional requirements such as strong stretching, electrical conduction, light conduction, and moisture absorption...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/00D01D5/28D01D5/32D01D5/34
Inventor 刘勇邓荣坚杨卫民丁玉梅
Owner BEIJING UNIV OF CHEM TECH
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