Abstract
In order to improve the anti-static performance of polyacrylonitrile( PAN) fiber,with PAN fiber as raw material,N,Ndimethyl acetamide( DMAC) as solvent,prepared PAN spinning solution. Then added different ratios of nano-Zn O,with good conductivity,to the PAN spinning solution by the method of ultrasound and mechanical stirring,prepared PAN / Zn O composite spinning solution. After that,PAN / Zn O nano-fibers with anti-static property were prepared by electrostatic spinning technique. The spin-ability of PAN spinning solution and PAN / Zn O spinning solution as well as the influence of different ratios of nano-Zn O to the crystallinity and the volume resistivity of PAN / Zn O nano-fiber are studied. The results indicate that the spinning solution has good spin-ability; when the concentration was 12%,spinning voltage was 18 k V,receiving distance was 15 cm,advancing speed was 0. 0005 mm / s,under the condition of electrostatic spinning,can get nanofibers with uniform fiber diameter,good parallel straight degree and smooth surface;with the increase of nano-Zn O content,the surface of PAN / Zn O nano-fibers become rough but no obvious change in crystallinity,and the volume resistivity decreases.
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