Journal of Industrial and Engineering Chemistry

The Korean Society of Industrial and Engineering Chemistry (한국공업화학회)
권호 표지

Retention Rate Phenomena for Polyamide-epichorohydrin Polymer in Papermaking Fibrous Colloidal Suspension

Yoon, Sung-Hoon;Chai, Xiz Sheng

  • Published : 20070300
⟨ Previous Next ⟩

Abstract

The objective of this current work was to investigate the rate determining factor for wet-strength polymer retention in an aqueous fibrous suspension using polyamide-epichlorohydrin (PAE). The fundamental frame of the classical transition state theory was introduced to the polymer adsorption concept depicted as a forward elementary reaction of reversible molecular adsorption. The magnitudes of the equilibrium and kinetic constants determined clearly proved that the PAE polymer retention on fiber is mainly governed by molecular diffusion through the solution. In the second regime of this study, the rate of the diffusion-controlled retention process was determined using a theoretical hydrodynamic diffusion model. The model agreed well with the empirical results; it introduced a new concept of the diffusion limiting angle present on the adsorption site of the fiber surface.

Keywords

References

  1. K. J. Hipolit, Chemical Processing Aids in Papermaking: A Practical Guide, Tappi Press, Atlanta, 12 (1992)
  2. W. E. Scott, Principles of Wet End Chemistry, Tappi Press, Atlanta, 184 (1996)
  3. H. Espy and T. Rave, Tappi J., 71, 133 (1988)
  4. N. Bates, Tappi J., 52, 1157 (1969)
  5. X.-S. Chai and S.-H.Yoon, J. Ind. Eng. Chem., 13, 244 (2007)
  6. S. H. Yoon, J. Ind. Eng. Chem., 12, 877 (2006)
  7. S.-H. Yoon and X.-S. Chai, Bull. Korean Chem. Soc., 27, 10 (2006)
  8. L. Nabzar and E. Pefferkorn, J. Colloid Interface Sci., 108, 243 (1985)
  9. L. Nabzar and E. Pefferkorn, Soil Sci., 141, 113 (1986)
  10. E. Pefferkorn, L. Nabzar, and A. Carroy, J. Colloid Interface Sci., 106, 94 (1985)
  11. S. T. Kim, J. Y. Lim, H. J. Choi, and H. Hyun, J. Ind. Eng. Chem., 12, 161 (2006)
  12. H. S. Fogler, Elements of Chemical Reaction Engineering, 2nd Edn., Prentice-Hall, Londen, 249 (1992).
  13. R. B. Bird, W. E. Stewart, and E. N. Lightfoot, Transport Phenomena, John Wiley & Sons, New York, 495, 514 (1960)
  14. J. Crank, The Mathematics of Diffusion, 2nd Edn., Clarendon Press, Oxford, 2 (1975)