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Method for preparing core sheath structure fiber by using electrospun coaxial spinning head

A coaxial spinning and structural fiber technology, which is applied in fiber processing, textiles and papermaking, filament/thread forming, etc., can solve the problems of limited research, difficulties in the preparation and application of coaxial spinning heads, and achieve the preparation method Simple, easy-to-control, uniform-diameter effect

Inactive Publication Date: 2010-06-16
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the difficulty in the preparation and application of the coaxial spinning head, the research in this area is very limited.

Method used

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  • Method for preparing core sheath structure fiber by using electrospun coaxial spinning head
  • Method for preparing core sheath structure fiber by using electrospun coaxial spinning head
  • Method for preparing core sheath structure fiber by using electrospun coaxial spinning head

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Coaxial spinning head preparation

[0026] Such as figure 1 As shown, a sleeve is cast from a stainless steel billet, and then a stainless steel capillary with a certain diameter is welded to the center of the sleeve to prepare a coaxial spinning head.

Embodiment 2

[0028] Coaxial spinning head and syringe connection

[0029] Such as figure 2 As shown, the core fluid is directly connected to the syringe, and the sheath fluid is connected to the syringe through a high-elastic silicone hose.

Embodiment 3

[0031] Dual-channel axial-flow syringe pump controlled electrospinning

[0032] Such as image 3 As shown, the coaxial spinning head connected with the syringe is directly driven on the dual-channel axial flow syringe pump.

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PUM

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Abstract

The invention relates to a method for preparing core sheath structure fiber by using an electrospun coaxial spinning head, which comprises the flowing steps: respectively preparing sheath fluid and core liquid, and electrospinning under the conditions that the flow is 0.5 ml / h, the voltage is 12 to 15kV and the acceptable distance is 12 to105 cm. The invention has the advantages of simple method, convenient operation, easy control, and can prepare a nano fiber membrane with core sheath structural characteristics under a high-voltage electric field by a single step; moreover, the prepared core-sheath structure fibers have uniform diameters and smooth surfaces.

Description

technical field [0001] The invention belongs to the field of preparation of core-sheath structure fibers, in particular to a method for preparing core-sheath structure fibers by using an electrospinning coaxial spinning head. Background technique [0002] In recent years, due to the upsurge of nanotechnology, there are more and more research reports on the preparation of functional nanofibrous membranes by high-voltage electrospinning technology. At present, the general situation of this technology in applied research is: (1) various natural or synthetic polymer materials, even nucleic acids or small molecules such as lecithin can be electrospun into nanofibers that can form "worm" structures, Including linear fibers or helical fibers, it proves the effectiveness of the electrospinning process and prepares new non-woven nanofibers; (2) co-dissolving or blending a fiber-forming polymer with another active component and spinning to The function of the active ingredient is exe...

Claims

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Application Information

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IPC IPC(8): D01D5/34D01F8/10
Inventor 朱利民余灯广申夏夏聂伟
Owner DONGHUA UNIV