Processing of continuous poly(amide‐imide) nanofibers by electrospinning

Abstract

Continuous poly(amide‐imide) nanofibers were fabricated using a novel electrospinning method with rotating and re‐collecting cylindrical collectors. The nanofilaments were modified using various post‐treatments, i.e. glycerol treatment and thermal imidization under tension, for possible application as high‐performance reinforcements. Morphological and mechanical properties of continuous poly(amide‐imide) nanofibers prepared by the electrospinning process and various post‐treatments were measured. Severe adhesion between individual nanofibers within fiber bundles was inhibited through surface treatment of the electrospun nanofiber bundles by spraying with glycerol. The morphological and mechanical properties of the continuous poly(amide‐imide) nanofibers and thermal stability were improved using thermal imidization at high temperature under tension. The morphological and mechanical properties of the continuous electrospun nanofibers were improved significantly by post‐treatments after electrospinning because uniform and complete thermal imidization occurred through the core region of the nanofibers. Copyright © 2009 Society of Chemical Industry

Strength Increase of Medium Temperature-carbonized PAN Nano Fibers Made by Mechano-electrospinning

“…Since 1960's the webs of nano-fibers has been popularly made because of the instability of the electrospinning [9][10][11][12]. Recently, the modified elecrospinning to make the continuous and aligned nano-fibers has been developed by Korea Research Institute of Chemical Technology (KRICT) and followed by other institutes [13][14][15][16][17][18]. Recently the nano-diameter carbon fibers producing technologies by using the modified electrospinning attracted so many researchers [19][20][21][22][23][24][25].…”

Novel Polyimide Materials Produced by Electrospinning

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