Structure and Property Development of Polyacrylonitrile Fiber with Ionic Liquid as Solvent during Spinning Process

Abstract:

In order to study the structure and property development of polyacrylonitrile fiber during spinning process with ionic liquid as solvent, the 13 wt% PAN/[BMICl solution was prepared by dissolving polyacrylonitrile (PAN) in 1-butyl-3-methylimidazolium chloride ([BMICl). The dry-jet wet spinning of PAN/[BMIM]Cl was carried out to obtain the samples along spinning line. The mechanical properties, dynamic mechanical properties (DMA) and supramolecular structure of PAN fiber were analyzed. It is found that along spinning line tensile strength of PAN fiber increased significantly; initially, elongation at break increased followed by subsequent decrease. The fibers glass transition temperature (T_g) drops initially and later becomes constant; however, the fibers crystallinity and orientation increased.

• Periodical: Advanced Materials Research (Volume 936)
• Pages: 997-1001
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.936.997
• Online since: June 2014
• Authors: Hai Ming Cheng, En Jie Zhang, Xue Min Yin, Yu Mei Zhang*, Hua Ping Wang
• Keywords: Dry-Jet Wet Spinning, Ionic Liquid (IL), Polyacrylonitrile, Property, Structure

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