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   Wet-Spinning Assembly of Polyacrilonitrile/Non-Solvent Reinforced Fibers With Improved Structural Order and Mechanical Properties  
   
DOR 20.1001.2.9919199705.1399.11.1.240.5
نویسنده - - ,- - ,- -
منبع كنگره مهندسي شيمي - 1399 - دوره : 11 - یازدهمین کنگره بین المللی مهندسی شیمی - کد همایش: 99191-99705
چکیده    In this work, polyacrylonitrile (pan) fibers with adding non-solvent (h2o) have been prepared using wet spinning method# tap-water has been applied as a coagulation bath and then it has diffused into pan spinning solution which has led to a rapid pan fiber solidification# all of synthesized fibers have been studied via field emission scanning electron microscope (fe-sem) images, differential scanning calorimetry (dsc) analysis and x-ray diffraction (xrd) pattern# the cross-sectional morphologies of synthesized fibers show that presence of non-solvent in spinning solution reduces the number of micrometer channels and depth of the channels while increases number of finger channels# also, xrd and dsc results presents that the pan/h2o fiber has a higher crystallinity and, in this sample, the polymer chains become less degraded as heat is# all of these findings indicate an enhancement in the structural order of pan/h2o fiber, which can ultimately improve the mechanical properties of them#
کلیدواژه Polyacrylonitrile Fiber ,Non-Solvent ,H2o ,Wet Spinning
آدرس University Of Kashan, Iran, University Of Kashan, Iran, Amirkabir University Of Technology, Iran
 
     
   
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