Journal of Textile Research ›› 2019, Vol. 40 ›› Issue (03): 13-19.doi: 10.13475/j.fzxb.20180306307

• Fiber Materials • Previous Articles     Next Articles

Preparation and characterization of polyacrylonitrile/polysulfonamide composite nanoyarns

JIN Shixin1, LIU Shuhua2, LIU Yan3(), ZHENG Yuansheng1, XIN Binjie1   

  1. 1. School of Fashion Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
    2. Research Department, Shanghai University of Engineering Science, Shanghai 201620, China
    3. College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
  • Received:2018-03-26 Revised:2018-07-24 Online:2019-03-15 Published:2019-03-15
  • Contact: LIU Yan E-mail:liuaynxin@hotmail.com

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Abstract:

Aiming at the poor heat resistance of polyacrylonitrile (PAN), excellent heat resistance and poor dyeing property of polysulfone amide (PSA), a series of nanoyarns were prepared at different spinning voltages and collector rotating speeds by using a self-made dynamic electrospinning machine, with the concentration of spinning solution and the receiving distance kept constant. The structure and properties of the composite nanoyarns were studied by using scanning electron microscope, single yarn strength tester, capillary effect tester, Fourier transform infrared spectrometer and thermogravimetric analyzer. The experimental results show that the morphology of nanoyarns are significantly affected by spinning voltages and the collector rotating speeds. In addition, the mechanical properties of nanoyarns are also affected. It is found that the nanoyarns could achieve a better performance in morphology, strength and heat resistance at spinning voltage of 25 kV and collector rotating speed of 40 r/min. The nanoyarns show a better wicking performance at collector rotating speed of 60 r/min and spinning voltage of 30 kV.

Key words: polyacrylonitrile, polysulfonamide, electrospinning, nanoyarn

CLC Number: 

  • TQ342.79

Fig.1

Schematic of dynamic rotating electrospinning machine"

Fig.2

SEM images of nanoyarns prepared from different materials (×70)"

Fig.3

SEM images of nanoyarns prepared at different voltages (×70)"

Fig.4

SEM images of nanoyarns prepared at different rotating speeds (×70)"

Fig.5

Tensile curves of nanoyarns prepared from different materials"

Fig.6

Tensile curves of nanoyarns prepared at different voltages"

Fig.7

Tensile curves of nanoyarns prepared at different rotating speeds"

Fig.8

Wicking height for nanoyarns prepared from different materials"

Fig.9

Wicking height for nanoyarns prepared at different voltages"

Fig.10

Wicking height for nanoyarns prepared at different rotating speeds"

Fig.11

FT-IR spectra of nanoyarns prepared from different materials"

Fig.12

TG curves of nanoyarns prepared from different materials"

Fig.13

TG curves of nanoyarns prepared at different voltages"

Fig.14

TG curves of nanoyarns prepared at different rotating speeds"

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