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Device for generating micro/nano-fibers with controllable waveforms

A technology of micro-nano fibers and generating devices, which can be applied in fiber processing, filament/thread forming, and bundling of newly ejected filaments, etc., can solve the problems of not being able to control the shape and size of corrugated fibers well.

Inactive Publication Date: 2014-08-20
GUANGDONG UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, in these application prospects, there are certain requirements for the shape and size of wave-shaped nanofibers. The above-mentioned production methods for wave-shaped nanofibers cannot well control the shape and size of wave-shaped fibers. Therefore, a In near-field electrospinning, a controllable electric field is applied to the auxiliary electrode to achieve controllable deposition of nanofibers.

Method used

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  • Device for generating micro/nano-fibers with controllable waveforms
  • Device for generating micro/nano-fibers with controllable waveforms
  • Device for generating micro/nano-fibers with controllable waveforms

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Embodiment

[0018] The controllable waveform micro-nano fiber generation device of the present invention includes a precision injection pump 1, a precision injection pump feed mechanism guide rail 2, a precision injection pump power transmission slider 3, a syringe push rod 4, a syringe 5, and an electrospinning nozzle 6. Auxiliary electrode 7, controllable power supply 9, motion platform 11, collector 14, high-voltage DC power supply 17, control system 19, power screw 20, syringe 5 is fixedly installed on the precision injection pump 1, and the precision injection pump 1 passes the power The lead screw 20 is connected with the precision syringe pump power transmission slider 3, the precision syringe pump power transmission slider 3 is connected with the syringe push rod 4, one end of the syringe push rod 4 is connected with the syringe push rod 4, and the other end of the syringe push rod 4 is installed Set in the hollow cavity of the syringe 5, the power output of the precision syring...

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Abstract

The invention provides a device for generating micro / nano-fibers with controllable waveforms. The device comprises a precision injection pump, a precision injection pump feed mechanism guide rail, an injector push rod, an injector, an electrostatic spinning sprayer, auxiliary electrodes, a controllable power supply, a motion platform, a collector, a high-voltage direct-current power supply, a control system and a power lead screw, wherein the injector is installed on the precision injection pump, the precision injection pump controls the feed rate of a solution inside the injector through an injector push mechanism, the electrostatic spinning sprayer is installed at the tail end of the injector and used for forming an electrostatic spinning environment, the collector is installed on the motion platform and used for collecting fibers and providing a spinning environment, and the motion platform is used for providing the motion speed and direction of a collecting board in a near field direct writing mode. According to the device, electric fields between the two auxiliary electrodes change, the stress of jet flow in air also changes in the spinning process, so that the deposited track of the jet flow also changes, and the shape and the size of the deposited fibers can be controlled by controlling output signals of the controllable power supply.

Description

technical field [0001] The invention is a controllable waveform micro-nano fiber generating device, which belongs to the innovative technology of the controllable waveform micro-nano fiber generating device. Background technique [0002] Electrospinning technology Electrospinning technology was first proposed by Formhzls in 1934, and then Taylor et al. proposed the concept of Taylor cone for the deformation of charged polymers in the electrospinning process in 1964. It was not until the 1990s that people began to Extensive attention has been paid to electrospinning technology. In 2000, Reneker et al. did a study on the instability of jet bending in electrospinning of polymer solution. The paper mentioned that the reason for the generation of wave-shaped nanofibers in electrospinning is that the bending of electrospinning is unstable. In 2001, Yarin et al. did further research on jet instability in the electrospinning process. In 2007, Han et al. did about the deposition of...

Claims

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Application Information

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IPC IPC(8): D01D5/00D01D7/00
Inventor 朱自明陈新度陈新王晗郑俊威梁烽李敏浩廖伟杨
Owner GUANGDONG UNIV OF TECH
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