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Complex type electrostatic spinning method with positive and negative electrodes in same electric field, and application

A technology of electrospinning, positive and negative electrodes, applied in the field of spinning, can solve the problems that the fiber diameter can only be controlled to the same size and the spinning speed is slow, and achieve the effect of increasing porosity and increasing Young's modulus.

Inactive Publication Date: 2007-07-25
CIVIL AVIATION UNIV OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The current method for preparing nanofibers is monopolar spinning, that is, electrospinning is used alone for positive or negative electrodes. The disadvantage is that only one solution can be prepared, and the combination of multiple solutions with different properties cannot meet the requirements, and the spinning speed is slow. , real industrialization brings defects, fiber diameter control can only be the same size, it is not possible to prepare fibers with different diameters in the same material

Method used

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  • Complex type electrostatic spinning method with positive and negative electrodes in same electric field, and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] 100 parts of chloroform, 16 parts of polylactic acid (PLA), solution conductivity 0.002us / cm. Positive and negative voltage control 8.5kv, receiving distance 20 cm.

Embodiment 2

[0022] N, N-diformamide (DMF) 100 parts, polylactic acid (PLA) 12 parts, solution conductivity 14.50us / cm. The voltage control is 6.5kv, the receiving distance is 20 cm, the room temperature condition, and the traction rate is 100 rpm.

Embodiment 3

[0024] 100 parts of chloroform, 20 parts of PHBV, the conductivity of the solution is 0.002us / cm. The voltage control is 7.5kv, the receiving distance is 25cm, and the room temperature condition.

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PUM

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Abstract

The present invention discloses a positive negative electrode common-field complex spinning method. Said method has the advantages of quick spinning speed and several fiber diameters.

Description

technical field [0001] The invention discloses a spinning method, more specifically, the invention discloses an electrostatic spinning method and its industrial application. Background technique [0002] In recent years, with the rapid development of nanotechnology, the preparation of nanotechnology is constantly emerging. At present, the main methods for preparing nanofibers include drawing, template synthesis, phase separation, self-assembly, emulsion polymerization and electrospinning (Loscertales IG , BarreroA, Guerrero I, et al. Micro / nanoencapsulation via electrified coaxialliquid jets[J]. Science, 2002, 295: 1695~1698., Huang ZM, Zhang YZ, KotakiM, et al.Areview on polymer nanofibers by electrospinning applications in nanocomposites [J]. Composites Science and Technology. 2003, 63: 2223~2253.). Electrospinning is the use of electrohydrodynamics (Electrohydrodynamics, EHD) jet technology to prepare nanometer or submicron fibers. This method includes electrospinning a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/00D01F6/60D01F2/28D01F6/18D01F6/22D01F6/62D01F6/64D01F6/14
Inventor 李梅李志强霍晓燕
Owner CIVIL AVIATION UNIV OF CHINA
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