Fibers and Polymers

  • 제3권1호
  • /
  • Pages.1-7
  • /
  • 2002
  • /
  • 1229-9197(pISSN)
  • /
  • 1875-0052(eISSN)
한국섬유공학회 (The Korean Fiber Society)
권호 표지

Preparation of Regenerated Cellulose Fiber via Carbonation. I. Carbonation and Dissolution in an Aqueous NaOH Solution

  • Oh, Sang Youn (Department of Textile Enginnering, Chonnam National University) ;
  • Yoo, Dong Il (Department of Textile Enginnering, Chonnam National University) ;
  • Shin, Younsook (Department of Colthing and Textilies, Chonnam National University) ;
  • Lee, Wha Seop (Ploymer Hybrid Research Center, Korea Institute of Science and Technology) ;
  • Jo, Seong Mu (Ploymer Hybrid Research Center, Korea Institute of Science and Technology)
  • 발행 : 2002.03.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

Cellulose carbonate was prepared by the reaction of cellulose pulp and $CO_2$ with treatment reagents, such as aqueous $Zncl_2$ (20-40 wt%) solution, acetone or ethyl acetate, at -5-$0^{\circ}C$ and 30-40 bar ($CO_2$) for 2 hr. Among the treatment reagents, ethyl acetate was the most effective. Cellulose carbonate was dissolved in 10% sodium hydroxide solution containing zinc oxide up to 3 wt% at -5-$0^{\circ}C$. Intrinsic viscosities of raw cellulose and cellulose carbonate were measured with an Ubbelohde viscometer using 0.5 M cupriethylenediamine hydroxide (cuen) as a solvent at $20^{\circ}C$ according to ASTM D1795 method. The molecular weight of cellulose was rarely changed by carbonation. Solubility of cellulose carbonate was tested by optical microscopic observation, UV absorbance and viscosity measurement. Phase diagram of cellulose carbonate was obtained by combining the results of solubility evaluation. Maximum concentration of cellulose carbonate for soluble zone was increased with increasing zinc oxide content. Cellulose carbonate solution in good soluble zone was transparent and showed the lowest absorbance and the highest viscosity. The cellulose carbonate and its solution were stable in refrigerator (-$5^{\circ}C$ and atmospheric pressure).

키워드

참고문헌

  1. W. D. Bellamy, Biotechnol. Bioeng., 26, 869 (1974)
  2. A. E. Humphery in 'Cellulose as a Chemical and Energy Resource', (C. R. Wilkem Ed.), pp.49-65, Wiley, New York, 1975
  3. D. Fengel and G. Wegener, 'Wood Chemistry', pp.66-105, Walter de Gruyter, New York, 1989
  4. E. E. Treiber in 'Cellulose Chemistry and its Applications', (T. P. Nevell and S. H. Zeronian Eds.), Chap. 18, pp.455-479, Ellis Horwood Ltd., Chichester, UK, 1985
  5. R. W. Moncrieff, 'Man-Made Fibers', 6th ed., pp.162-299, Newnes Butterworths, London, 1975
  6. J. I. Kroschwitz, 'Polymers: Fibers and Textiles, A Compendium', pp.746-772, John Wiley Sons Inc., New York, 1990
  7. D. L. Johnson, G. B. Patent, 1144048 (1969)
  8. N. E. Franks and J. K. Varga, U. S. Patent, 4145532 (1979)
  9. T. Hongu and G. O. Philips, 'New Fibers', 2nd ed., pp. 196-201, Woodhead Publ. Ltd., Cambridge, 1997
  10. J. Brandrup and E. H. Immergut, 'Polymer Handbook', 4th ed., pp.V/144-147, Wiley-Interscience, New York, 1999
  11. G. F. Davidson, J. Text. Inst., 28, 27 (1937) https://doi.org/10.1080/19447023708631789
  12. Z. Jinping and Z. Lina, Polymer Journal, 32, 866 (2000) https://doi.org/10.1295/polymj.32.866
  13. C. Bergner and B. Phillip, Cellulose Chem. Technol., 20, 591 (1986)
  14. B. Morgenstem and H. W. Kammer, Polymer Journal, 40, 1299 (1999) https://doi.org/10.1016/S0032-3861(98)00267-5
  15. H. Lang and I. Laskowski, Cellulose Chem. Technol., 25, 143 (1991)
  16. K. Kamide, K. Okajima, K. Kowsawa, T. Matsui, S. Nomura, and K. Hikichi, Polymer Journal, 17, 909 (1985) https://doi.org/10.1295/polymj.17.909
  17. T. Yamashiki, K. Kamide, and K. Okajima in 'Cellulose Sources and Exploitation', (J. F. Kennedy and G. O. Phillips Eds.), pp.197-202, Ellis Horwood, London, 1990