Intra- and inter-fibre pore closure in wet pressing

Appita Journal

Volumn 50, Issue 4, 1997, Pages 301-x3

  Maloney, Thad C ^c   Li, Tie Qiang ^b   Weise, Ulrich ^c   Paulapuro, Hannu ^a  

^a AALTO UNIVERSITY   (Finland)

^b ROYAL INSTITUTE OF TECHNOLOGY   (Sweden)

^c NONE

Author keywords

Hornification; Nuclear magnetic resonance; Pore; Solute exclusion; Wet pressing

Indexed keywords

EID: 0000125152     PISSN: 10386807     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (22)

1. Szikla, Z. and Paulapuro, H. - Changes in the z-directional density distribution of paper in wet pressing. J. Pulp Pap. Sci. 15(1):J11 (1989).
2. Carlsson, G., Lindström, T. and Söremark, C. - Expression of water from cellulosic fibres under compressive loads. 389-402 Fibre-Water Interactions in Paper-Making, Transactions of the BPBIF symposium held at Oxford, England, Sept. 1977, Vol. 1: BPBIF, London, (1978).
3. Carlsson, G. and Lindström, T. - Hornification of cellulosic fibres during wet pressing. Svensk Papperstidn. 87(15):119(1984).
4. Weise, U. and Paulapuro, H. - Changes in pulp dimensions during drying. Proc. Int. Paper Physics Conf., CPPA, Niagara-on-the-Lake, Sept. 11-14, p121 1995.
5. Laivins, G. V. and Scallan, A.M. - The mechanism of hornification of wood pulps. 1235-1260 Products of papermaking, transactions of the tenth fundamental research symposium, Oxford, Vol. II: Pira Int. (1993).
6. Halperin, W.P., D'orazio, F., Bhattacharja, S. and Tarczon, J.C. - 311-350 Molecular Dynamics in Restricted Geomitries: John Wiley & Sons (1989).
7. Gallegos, D.P. and Smith, D.M. - A NMR technique for the analysis of pore structure: determination of continuous pore size distributions. J. Colloid Interface Sci. 122(1):143 (1988).
8. Glaves, C.L. and Smith, D.M. - Membrane pore structure analysis via NMR spin-lattice relaxation experiments. J. Membrane Sci. 46(2+3): 167 (1989).
9. Davis, P.J. and Smith, D.M. - Using NMR spectroscopy to analyze the pore structure of coatings. Tappi J. 72(5):85(1989).
10. Whittall, K.P. - Recovering compartment sizes from NMR relaxation data. J. Magnetic Resonance 94(3): 486(1991).
11. 1NMR. Nord. Pulp Pap, Res. J. 8(3):326(1993).
12. 1H NMR relaxation method. Langmuir 10(2):4624(1994).
13. Stone, J.E., Scallan, A.M. and Abrahamson, B., - Influence of beating on cell wall swelling and internal fibrillation. Svensk Papperstidn. 19(10):687(1968).
14. Stone, J.E. and Scallan, A.M. - The effect of component removal upon the porous structure of the cell wall of wood. Tappi J. 50(10): 496(1967).
15. Alince, B., - Comments on the porosity of swollen pulp fibres analyzed by solute exclusion. Tappi J. 74(11):200(1991).
16. Lindström, T. - The concept and measurement of fibre swelling. 75-97 Paper Structure and Properties: Marcel Dekker, NY, (1986)
17. Yiannos, P.N. - Swellability of pulps determined by isopropanol retention. Tappi J. 48(9):494(1965).
18. Szikla, Z. and Paulapuro, H. - Wet pressing laboratory simulation. Proc. 2nd Inter. Pira Conf. on Modern Technologies in Pressing and Drying, Pira, Bournemouth, England, November 6-8, 1990: paper 27.
19. Provencher, S.W. - Contin: a general purpose constrained regularization "program for inverting noisy linear algebraic and integral equations. Computer Physics Communications, 27(3): 229 (1982).
20. Allan, G.G., Ko, Y.K., and Ritzenthaler, P. - The microporosity of pulp, the nature of pore size distribution. Tappi J. 74(3):205 (1991).
21. Stone, J.E. and Scallan, A.M. - A structural model for the cell wall of water swollen wood pulp fibres based on their accessibility to macromolecules. Cellul. Chem. Technol. 2(3):343(1968).
22. Scallan, A.M. - The accommodation of water within pulp fibres. 9-27 Fibre-Water Interactions in Paper-Making, Transactions of the BPBIF Symposium held at Oxford, England, Sept. 1977, Vol. 1: BPBIF, London, (1978).