Browse > Article
http://dx.doi.org/10.7317/pk.2013.37.1.52

Preparation of Surface-Hydrolyzed Cellulose Acetate Fibers and Their Applications to LCD Rubbing Cloth  

Kim, Hyun-Sun (Department of Organic Materials and Fiber Engineering, Soongsil University)
Kim, Young Ho (Department of Organic Materials and Fiber Engineering, Soongsil University)
Publication Information
Polymer(Korea) / v.37, no.1, 2013 , pp. 52-60 More about this Journal
Abstract
Partially hydrolyzed cellulose acetate (CA) fibers were prepared by treating CA fibers in aqueous $Na_2CO_3$ solutions of various concentrations. The deacetylation of CA fibers was confirmed through FTIR spectra and WAXD patterns. The hydrolysis was confined to the surface part of the CA fiber by controlling the treatment conditions. The resultant fibers had a sheath-core structure with a sheath component of regenerated cellulose and a core of non-hydrolyzed cellulose acetate. The SEM images of the surface-hydrolyzed CA fibers, the core of which was dissolved out using acetone as the solvent, showed that the sheath thickness increased with increasing alkaline concentration, indicating an increase in the hydrolyzed fiber, i.e., regenerated cellulose. Polarized FTIR analysis of the polyimide film rubbed with velvet fabrics of surface-hydrolyzed CA fibers showed that polyimide molecules were preferentially oriented to the rubbing direction.
Keywords
cellulose acetate; fiber; surface hydrolysis; sheath-core structure; rubbing cloth;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 W. Dong, M. H. Yi, and S. H. Paek, Polymer(Korea), 27, 484 (2003).
2 D. W. Berreman, Phys. Rev. Lett., 28, 1683 (1972).   DOI
3 M. Yamahara, M. Nakamura, N. Koide, and T. Sasaki, Mol. Cryst. Liq. Cryst., 466, 39 (2007).   DOI   ScienceOn
4 H. J. Ahn, J. J. Lee, J. S. Ahn, K. C. Park, J. G. Noh, D. Y. Yoo, and S. H. Paek, Polymer(Korea), 35, 385 (2011).
5 J. M. Greary, J. W. Goodby, A. R. Kmetz, and J. S. Patel, J. Appl. Phys., 62, 4100 (1987).   DOI
6 D. C. Coleman, "Rayon", in Courtaulds, Oxford Univ. Press, London, Vol II, pp 61-75 (1969).
7 C. M. Buchanan, K. J. Edgar, and A. K. Wilson, Macromolecules, 24, 3060 (1991).   DOI
8 H. A. Krassing, Cellulose: Structure, Accessibility and Reactivity, Gordon and Breach Science Publichers, Swizerland, pp 41-130 (1993).
9 A. Ishikawa, T. OKano, and J. Sugiyama, Polymer, 38, 463 (1997).   DOI   ScienceOn
10 M. Lewin and S. B. Sello, Editors, Handbook of Fiber Science and Technology, Marcel Dekker, NY, USA, Vol 1, Part A, p 95 (1983).
11 I. S. Lim, J. P. Kim, S. Y. Kwak, Y. S. Ko, and Y. K. Kwon, Polymer, 47, 1333 (2006).   DOI   ScienceOn
12 F. J. Kolpak, M. Weih, and J. Blackwell, Polymer, 19, 123 (1978).   DOI   ScienceOn
13 Y. B. Kim and B. S. Ban, Liquid Crystal, 26, 1579 (1999).   DOI   ScienceOn
14 T. J. Lee, S. G. Hahm, S. W. Lee, and B. Chae, Mater. Sci. Eng. B, 132, 64 (2006).   DOI   ScienceOn
15 A. Seeboth, Display, 20, 131 (1999).   DOI   ScienceOn
16 J. A. Castello, Mol. Cryst. Liq. Cryst., 94, 33 (1983).   DOI
17 D. W. Berreman, Mol. Cryst. Liq. Cryst., 23, 215 (1973).   DOI   ScienceOn
18 A. Mosley, B. M. Nicholas, and P. A. Gass, Display, 8, 17 (1987).   DOI   ScienceOn
19 E. S. Lee, P. Vetter, T. Miyashita, and T. Uchida, Jpn. J. Appl. Phys., 32, L1339 (1993).   DOI   ScienceOn
20 I. H. Kim, W. S. Kim, and K. Ha, Polymer(Korea), 26, 209 (2002).
21 S. Ishihara, H. Wakemoto, K. Nakazima, and Y. Matsuo, Liquid Crystal, 4, 669 (1989).   DOI   ScienceOn