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A solution melt co-spinning electrospinning device for preparing composite fibers

An electrospinning and melt technology, applied in fiber processing, textile and paper making, filament/thread forming, etc., can solve the problems of thick fiber, complex equipment, high strength, etc.

Active Publication Date: 2021-06-15
QINGDAO UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Melt electrospinning requires a heating device to control the melt temperature, the equipment is more complicated, and the spun fibers are thicker and have higher strength

Method used

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  • A solution melt co-spinning electrospinning device for preparing composite fibers

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Experimental program
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Embodiment Construction

[0008] The present invention will be described in detail below in combination with specific embodiments.

[0009] The present invention as figure 1 As shown, the second sleeve 3 is arranged in the first sleeve 2, the upper part of the second sleeve 3 is fixedly connected with the upper part of the first sleeve 2, and the middle and lower part of the second sleeve 3 is connected with the upper part of the first sleeve 2. There is an annular flow channel I302 between the middle and lower parts, the third sleeve 4 is set in the second sleeve 3, the upper part of the third sleeve 4 is fixedly connected with the upper part of the second sleeve 3, and the middle part of the third sleeve 4 An annular channel II 401 is provided between the lower part and the middle and lower part of the second sleeve 3 .

[0010] The first sleeve 2 is provided with a direct channel I201 and a direct channel II202, and the second sleeve 3 is provided with a direct channel III301, one end of the direct...

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Abstract

The object of the present invention is to provide a solution melt co-spinning electrospinning device for preparing composite fibers. The first sleeve, the second sleeve, the third sleeve, and the fourth sleeve are nested in sequence. There is a straight channel and an annular flow channel for the flow of gas and melt. The center tube passes through the lower end of the fourth sleeve to fix the needle. The top is connected to the syringe pump through an insulating conduit and connected to a high-voltage electrostatic generator. The solution is formed at the tip of the needle. Jet flow, a high-voltage electric field is formed between the annular tip of the first sleeve and the needle, the annular tip is electrically charged, and the melt self-organizes to form a uniformly distributed multi-jet flow. The annular airflow prevents the fibers spun from solution spinning from flying to the annular tip. The fiber is stretched to reduce the fiber diameter, and the fibers formed by the melt and the solution are intertwined and adhered to each other during the injection process to form a composite fiber. The beneficial effect of the device of the invention is that a composite fiber membrane with high porosity, high specific surface area and high strength can be prepared.

Description

technical field [0001] The invention belongs to the technical field of textiles, and relates to a solution-melt co-spinning electrostatic spinning device for preparing composite fibers. Background technique [0002] Electrospinning technology is a method that uses high-voltage static electricity to make polymer melts or solutions into ultrafine fibers. The prepared fiber has the characteristics of high specific surface area and high porosity, and is widely used in ultrafiltration, biomedicine, battery separator and tissue engineering and other fields. According to the different spinning media, electrospinning technology can be divided into melt electrospinning and solution electrospinning. Solution electrospinning does not require a heating device, the required equipment is relatively simple, and the spun fibers are thinner and have lower strength. Melt electrospinning requires a heating device to control the melt temperature, the equipment is more complicated, and the spu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01D5/00D01D5/30
CPCD01D5/0015D01D5/0061D01D5/0092D01D5/30
Inventor 陈宏波汪传生韩雯雯杨卫民田晓龙
Owner QINGDAO UNIV OF SCI & TECH
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