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Electrostatic spinning device with spinning nozzle capable of doing linear reciprocating motion

A reciprocating straight line, electrospinning technology, applied in filament/thread forming, textile and papermaking, bundling of newly ejected filaments, etc. The effect of low operating voltage and improved yield

Inactive Publication Date: 2012-12-12
QINGDAO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still some shortcomings in the above technical methods: for example, the working voltage is high or the spinning distance is large, and the ordered fibers prepared are generally linear structures, and there are few twisted structures.

Method used

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  • Electrostatic spinning device with spinning nozzle capable of doing linear reciprocating motion
  • Electrostatic spinning device with spinning nozzle capable of doing linear reciprocating motion
  • Electrostatic spinning device with spinning nozzle capable of doing linear reciprocating motion

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Example 1: Preparation of PVP fibers with a linear structure in an orderly arrangement: Use a disposable straw to extract about 1 milliliter of PVP precursor solution and inject it into the syringe needle tube 7 for spinning. 10. Adjust the distance between the stainless steel needle 8 and the aluminum foil collector 10 to 1 cm, put a glass slide on the collector, cover the glass slide with a piece of clean and dry paper, and connect the high-voltage DC power supply 9 to make The switch is in the "ON" state, the voltage is adjusted to 1.8 kV, and the stationary needle starts spinning; the power supply of the brushless DC motor 3 is turned on, and the knob of the governor 1 is rotated so that the rotating speed is 200rpm, and the stationary needle starts spinning. Reciprocating linear motion, after a few seconds of stable speed, quickly remove the paper covering the cover glass, and start timing, after 15 seconds, turn off the high-voltage DC power supply 9, make its swit...

Embodiment 2

[0018]Example 2: Preparation of cross-structured PVP fibers: first prepare orderly arranged PVP fibers according to the steps in Example 1, then rotate the collected samples by 90° and repeat the electrospinning once again with the same conditions and steps to obtain The optical microscope photos of the cross-structured PVP fibers are as follows image 3 shown.

Embodiment 3

[0019] Embodiment 3: the preparation of the PVP fiber of orderly arrangement distorted structure: adjusting the voltage among the embodiment 1 is 3.5 kilovolts, other steps are constant, finally obtain the PVP fiber of orderly arrangement distorted structure, the SEM photo of its sample is as follows Figure 4 As shown, it can be seen that the prepared fibers have a twisted structure and are arranged in an orderly manner, but due to the distribution of wave-shaped fibers on a two-dimensional scale, there is an intercrossing phenomenon between the fibers.

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PUM

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Abstract

The invention belongs to the technical field of preparation of micro-nano fibers and relates to an electrostatic spinning device with a spinning nozzle capable of doing a linear reciprocatingmotion; a stainless steel needle head is fixed on an injector needle tube and is connected with the anode of a high-voltage direct-current power supply; the cathode of the high-voltage direct-current power supply is connected with an aluminum foil collector; the aluminum foil collector is fixed on a base of the device; the injector needle tube is fixed on one end of a linear motion rod; the linear motion rod runs through two parallel brackets and is capable of doing harmonic linear motion on the brackets; and the other end of the linear motion rod is connected with an organic glass plate by a crankshaft connection rod. The electrostatic spinning device has the advantages of multiple functions, concentrated spinning distribution and good ordering, small spinning distance, high yield, low working voltage, and the like.

Description

Technical field: [0001] The invention belongs to the technical field of micro-nano fiber preparation, and relates to a reciprocating linear motion electrostatic spinning device for spinning nozzles, which is used to prepare micro-nano fibers in orderly arrangement, intersecting structure and twisted structure, as nano-optical devices, optical devices and Materials for stretchable flexible devices. Background technique: [0002] At present, electrospinning technology is a widely concerned method that can directly prepare continuous fibers from polymer and composite material solutions or melts. It has the advantages of simple equipment, low cost, high fiber yield, and wide application range. Gas and biosensors, filtration and separation, textile engineering, drug sustained release, battery electrode materials and many other fields have broad application prospects. The principle of electrospinning is: a high-voltage power supply provides high voltage, and a strong electrostati...

Claims

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Application Information

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IPC IPC(8): D01D5/00D01D7/00
Inventor 龙云泽刘术亮唐成春孙彬郑杰张红娣李蒙蒙
Owner QINGDAO UNIV
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