Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
권호 표지

Effect of Coagulation Bath Concentration on Structural Densification of Acrylic Undrawn Fibers Based on DMF Solvent System

DMF 용매계에서의 응고욕조성이 아크릴미연신섬유의 구조치밀화에 미치는 영향

  • 조현혹 (부산대학교 섬유공학과) ;
  • 이장우 (부산대학교 고분자공학과, 부산대학교 의류학과, 복강여자대학)
  • Published : 1994.08.01

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Abstract

The changes of physical properties(morphology. stress-strain behavior, swelling, antral shrinkage) of undrawn fibers spun from 15wt% DMF/H2O/PAN solution have been studied in relation to the variation ill the coagulation bath concentration(CBC) at the temperature of 1$0^{\circ}C$. It has been found that the void content, swellability, and shrinkage of talc fiber decrease according to the DMF content in the coagulation bath(i.e., increasing CBC) while the elongation at break of undrawn acrylic fibers increases. These results may be explained in view of structural densification caused by slow coagulation near the critical value of CBC(around 80% for the present system).

Keywords

References

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