Preparation and Characterization of Cellulose Fluoroacetate Fiber

셀룰로오스 불소화아세테이트 섬유 제조 및 그 물성에 관한 연구

  • 홍영근 (수원대학교 공과대학 고분자공학과) ;
  • 조우현 (수원대학교 공과대학 고분자공학과)
  • Published : 2001.12.01

Abstract

Cellulose was fluoroacetylated in trifluoroacetic acid(TFA)/trifluoroacetic anhydride (TFAA) and fluoroacetylation was confirmed by measuring the degree of substitution(DS) and IR peak. 6/4 mixture(v/v) of TFA/TFAA was shown to be best for fluoroacetylation and the reaction time was set at 24 hours to obtain good spinning dopes. DS value of the obtained cellulose fluo-roacetate(CFA) reached 0.81 and DP value decreased to half after reaction time of 7 hours. CFA fiber spun by dry-jet wet spinning method showed 2.89 g/den of tensile strength and 9% elongation at break. As the content of cellulose in solution and the degree of polymerization of the cellulose increased, tenacity of the CFA fibers increased. The fiber showed a melting temperature of 338 $^{\circ}C$.

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References

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