Journal of Korea Technical Association of The Pulp and Paper Industry (펄프종이기술)

Korea Technical Association of the Pulp and Paper Industry (한국펄프종이공학회)
권호 표지
DOI QR코드

DOI QR Code

Effect of PFI mill and Valley beater refining on cellulose degree of polymerization, alpha cellulose contents, and crystallinity of wood and cotton fibers

  • Hai, Le Van (Graduate student. Dept. of Bio-based Materials, Chungnam National Univ.) ;
  • Park, Hee Jung (Graduate student. Dept. of Bio-based Materials, Chungnam National Univ.) ;
  • Seo, Yung Bum (Dept. of Bio-based Materials, Chungnam National Univ.)
  • Received : 2013.07.21
  • Accepted : 2013.08.14
  • Published : 2013.08.30
Download PDF
⟨ Previous Next ⟩

Abstract

Manufacturing fabrics from dissolving cellulosic pulp is increasing in these days. For making high quality of cellulose-based fabrics, control of cellulose DP (degree of polymerization), its alpha cellulose content, its brightness, and its crystallinity are important. To process the cellulosic raw material, refining of cellulosic fibers is essential, and it is important to know if refining affects those important cellulose properties. The effects of PFI mill and Valley beater refining on the alpha-cellulose content, cellulose DP, crystallinity, and paper mechanical properties of wood and two different cotton fibers were studied. The results showed that PFI mill refining rarely affected those properties. Fibers refined by a Valley beater displayed a small reduction in fiber length in comparison with those refined by a PFI mill. However, the Valley beater refining method produced almost no changes in cellulose properties, either. The refining process seemed to have very little effect on the cellulose DP, crystallinity index, or alpha-cellulose content until the freeness decreased to around 300 mL CSF for wood and 100 mL CSF for cotton fibers, respectively. There were also no differences in tensile strength development in two refining methods.

Keywords

References

  1. Lumiainen, J., Refining of chemical pulp,chapter 4, Paper making part 1, Stock preparation and wet end, Paper making science and Technology, Paulapuro, H. (ed.), Finnish Paper Engineers' Association and TAPPI, pp.92-130 (1999).
  2. Gandini, A. and Pasquini, D., The impact of celluloses fiber surface modification on some physic-chemical properties of the ensuing papers, Industrial Crops and Products 35: 15-21 (2012). https://doi.org/10.1016/j.indcrop.2011.06.015
  3. Chen, Y., Wan, J., Zhang, X., Ma, Y.and Wang Y.,Effect of beating on recycled properties of unbleached eucalyptus cellulose fiber, Carbohydrate Polymers 87:730-736 (2012). https://doi.org/10.1016/j.carbpol.2011.08.051
  4. Tonoli, G.H.D., Teixeira, E.M., Correa, A.C., Marconcini, J.M., Caixeta,L.A., Pereira-da-Silva, M.A. and Mattoso, L.H.C., Cellulose micro/nanofibers from eucalyptus kraft pulp: preparation and properties, Carbohydrate polymers 89: 80-88 (2012). https://doi.org/10.1016/j.carbpol.2012.02.052
  5. Wertz, J.L., Bédué, O. and Mercier, J.P.,Fundamental Sciences, Cellulose Science and Technology, Chapter 3, Structure and Properties of Cellulose, Fundamental Science, EPFL Press, pp.130-132 (2009).
  6. Abril, A., Rodriguez, M., Sanchez, A. and Banos, D., Cotton linter and Kraft bleached pulps mixture in the production of artistic paper. Cuba, Congress in pulp and paper research (2002).
  7. El-Ghany, N.A., Highly reactive cotton linters from refining of prehydrolysed AQ-soda pulp. Cellulose Chemistry and Technology 44: 255-264 (2010).
  8. Waterhouse, J.F., IPST Technical Paper series number 649, Institute of Paper Science and Technology, Atlanta, Georgia, 4th international refining conference, Palazzo dellaFonte, Fiuggi, Italy, p.10 (1997).
  9. Kim, U.J., Eom, S.H. and Wada, M., Thermal decomposition of native cellulose: Influence on crystallite size. Journal of Polymer degradation and stability 95:778-781 (2010). https://doi.org/10.1016/j.polymdegradstab.2010.02.009
  10. Wertz, J.L., Bedue, O. and Mercier, J.P., Fundamental Sciences, Cellulose science and Technology, Chapter 6, Non-biological Degradation of Cellulose, EPFL Press, p. 258 (2010).

Cited by

  1. Effect of Valley Beater Refining on Tensile Properties of Molded Pulps from Rice Straws vol.889, pp.None, 2013, https://doi.org/10.4028/www.scientific.net/kem.889.73