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Preparation and Characterization of Lignin/Chlorinated Polyvinyl Chloride Blended Fibers for Low-cost Carbon Fiber

  • Textile Coloration and Finishing
  • Abbr : Text. Color. and Finish.
  • 2020, 32(2), pp.111-120
  • DOI : 10.5764/TCF.2020.32.2.111
  • Publisher : The Korean Society Of Dyers And Finishers
  • Research Area : Engineering > Fiber Engineering > Dyeing Engineering
  • Received : May 7, 2020
  • Accepted : June 22, 2020
  • Published : June 27, 2020

Chaehyun Jo 1 LEE, SANG OH 2 Dakyung Kang 3 Seonghwa Hong 4 Kang Chan Kyu ORD ID 5 Lee Jae woong 1

1영남대학교 파이버시스템공학과
2영남대학교 의류패션학과
3(재)경북하이브리드부품연구원
4한국섬유기계융합연구원
5한경대학교 사회안전시스템공학과

Accredited

ABSTRACT

In this study, lignin/chlorinated poly(vinyl chloride)(CPVC) blended fibers have been produced for the development of low-cost carbon fiber. Carbon fiber manufacturing was accomplished through stabilization and carbonization process. The lignin/CPVC blended fibers were prepared by wet spinning method. Dimethylacetamide (DMAc) and cychlohexanone in a ratio of 5:1(wt%) was employed as co-solvent. The ratio of lignin/CPVC was prepared at 0/10, 1/9, 2/8, 3/7, 4/6, and 5/5(wt%). The spinning solution was extruded at a rate of 0.1 to 0.4ml/min according to the blending ratio. The speed of the rollers was the same for all ratios(draw ratio=1). Analysis of fiber cross-section by scanning eletron microscopy(SEM) showed that as the lignin ratio increased in the same coagulation bath and distilled water, the pore size of the spinning fiber decreased. Therefore, the highest tensile strength of the blending fibers was 6.3±1.2MPa at the 5/5 ratio. The carbon fiber also showed the best tensile strength of 120.78±2.43MPa at 5/5 ratio.

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