Electro-spinning apparatus and electro-spinning method

Abstract

An electro-spinning apparatus includes a spinning jet, a stuff supply unit, a solvent supply unit, a collection unit, and a voltage driving unit. The spinning jet has a first channel and a second channel. The first channel has a first outlet, and the second channel has a second outlet. The stuff supply unit is connected to the first channel and supplies a liquid stuff to the first outlet. The solvent supply unit is connected to the second channel and supplies a gaseous solvent to the second outlet. The voltage driving unit applies a voltage difference between the spinning jet and the collection unit, so that the liquid stuff is spun and collected to the collection unit after being output from the first outlet and passing through the gaseous solvent released from the second outlet. Besides, an electro-spinning method is also provided.

1 . An electro-spinning apparatus comprising:
 a spinning jet, comprising a first channel and a second channel, wherein the first channel comprises a first outlet, and the second channel comprises a second outlet adjacent to the first outlet;   a stuff supply unit, connected to the first channel of the spinning jet, for supplying a liquid stuff to the first outlet via the first channel;   a solvent supply unit, connected to the second channel of the spinning jet, for supplying a gaseous solvent to the second outlet via the second channel;   a collection unit; and   a voltage driving unit, connected to the spinning jet and the collection unit, wherein the voltage driving unit applies a voltage difference between the spinning jet and the collection unit, such that the liquid stuff is spun and collected to the collection unit after being output from the first outlet and passing through the gaseous solvent released from the second outlet.   
     
     
         2 . The electro-spinning apparatus according to  claim 1 , wherein the second outlet encloses the first outlet. 
     
     
         3 . The electro-spinning apparatus according to  claim 1 , wherein the second channel encloses the first channel. 
     
     
         4 . The electro-spinning apparatus according to  claim 1 , wherein the solvent supply unit comprises:
 a storage, for storing a liquid solvent; and   a heater, for heating the storage to gasify the liquid solvent into a gaseous solvent.   
     
     
         5 . The electro-spinning apparatus according to  claim 1 , wherein the solvent supply unit further comprises:
 a gas storage tank, connected to the storage, for providing a stable gas flow to the storage, such that the gaseous solvent is uniformly supplied to the second outlet.   
     
     
         6 - 14 . (canceled)