Evaluation of Flocculation Property of the Pulp Slurry Influenced by Chemical Addtives Using HYSTAP

Kyoung-Hwa Choi; Jung Eun Park; Jun Hyung Cho

doi:10.7584/JKTAPPI.2018.04.50.2.13

All Issue

2018 Vol.50, Issue 2 Preview Page Next Page

Evaluation of Flocculation Property of the Pulp Slurry Influenced by Chemical Addtives Using HYSTAP HYSTAP 장치를 이용한 펄프슬러리 내 첨가제들의 응집특성 평가

30 April 2018. pp. 13-19

PDF XML

Abstract

Effects of molecular weight and charge density of a C-PAM (cationic polyacrylamide) used as a retention aid on the flocculation of the pulp slurry have been investigated by measuring a hydrostatic pressure using the hydrostatic pressure tester (HYSTAP). It was found that a hydrostatic pressure of pulp slurry was increased with increasing C-PAM dosages. Flocculation property between PCC (precipitated calcium carbonate) and pulp fibers in pulp slurry was improved by C-PAM addition. Especially, the flocculation property of pulp slurry increased with when higher molecular weights and charge densities of C-PAM were added. While, the formation of handsheets was decreased with the improvement of flocculation property of pulp slurry samples by addition of C-PAM. These decreasing tendency was corresponding with the increasing changes of hydrostatic pressure of pulp slurry samples in respect of molecular weights and charge densities of CPAM. The tensile strength of handsheets was slightly decreased by addition of C-PAM while the burst strength was not changed. The changes in tensile strength of handsheet according to a molecular weight of C-PAM were agreed with those of a hydrostatic pressure. But, the changes in respect with the charge density of C-PAM wasn’t corresponding with the change of a hydrostatic pressure. In other words, tensile strength of handsheet was most decreased by addition of the C-PAM having a lowest charge density.

Keywords

Hydrostatic pressure

flocculation property

pulp slurry

C-PAM

paper properties

References

Literature Cited

R. Bown, Paper Technology, Particle size and structure of paper fillers and their effect on paper properties, 39(2); 44-48 (1998)

Bown, R., Particle size and structure of paper fillers and their effect on paper properties, Paper Technology 39(2):44-48 (1998).

M. Hubbe, J. Pawlak and A. Koukoulas, Bioresources, Paper’s appearance: A review, 3(2); 627-665 (2008)

Hubbe, M., Pawlak, J., and Koukoulas, A., Paper’s appearance: A review, Bioresources 3(2):627-665 (2008).

M. M. Singh and H. K. Mukerjee, Effect of China-clay as filler on strength properties of printing paper; 708-719, Indian Pulp and Paper, June (1961)

Singh, M. M. and Mukerjee, H. K., Effect of China-clay as filler on strength properties of printing paper, Indian Pulp and Paper, June, pp. 708-719 (1961).

B. Alince, Performance of pigments in filled sheetsTAPPI Papermakers Conference; 31-34 (1985)

Alince, B., Performance of pigments in filled sheets, TAPPI Papermakers Conference, pp. 31-34 (1985).

L. Li, A. Collis and R. Pelton, J. Pulp & Paper Sci, A new analysis of filler effects on paper strength, 28(8); 267-273 (2002)

Li, L., Collis, A., and Pelton, R., A new analysis of filler effects on paper strength, J. Pulp & Paper Sci. 28(8):267-273 (2002).

F. J. Stuman, The influence of filler content and process additives on wet web strength and runnability (2011)

Stuman, F. J., The influence of filler content and process additives on wet web strength and runnability, PaperCon 2011 (2011).

J. W. Swanson, Colloid Chemistry of Papermaking Meterials; 224-225, Atlanta. Tappi Press. (2003)

Swanson, J. W., Colloid Chemistry of Papermaking Meterials, pp. 224-225, Tappi Press, Atlanta (2003).

Y. J. Cho, K. J. Kim and T. J. Eom, Journal of Korea TAPPI, Improvements of strength and retention of cotton handsheet by additives (I) - Characteristics of strength and retention by additives, 45(5); 23-29 (2013)

Cho, Y. J., Kim, K. J., and Eom, T. J., Improvements of strength and retention of cotton handsheet by additives (I) - Characteristics of strength and retention by additives, Journal of Korea TAPPI 45(5):23-29 (2013).

10.7584/ktappi.2013.45.5.023

A. M. Hubbe and F. Wang, Tappi J, Where to add retention aid: issues of time and shear, 1(1); 28-33 (2002)

Hubbe, A. M. and Wang, F., Where to add retention aid: issues of time and shear. Tappi J. 1(1):28-33 (2002).

S. M. Burgess, E. J. Curley, N. Wiseman and H. Xiao, J. Pulp & Paper Sci, On-line optical determination of floc size, Part I: Principles and technique, 28(2); 63-65 (2002)

Burgess, S. M., Curley, E. J., Wiseman, N., and Xiao, H., On-line optical determination of floc size, Part I: Principles and technique, J. Pulp & Paper Sci. 28(2):63-65 (2002).

A. Blanco, E. Fuente, C. Negro, C. M. Monte and J. Tijero, Tappi J, Focused beam reflectant measurement as a tool to measure flocculation, 1(10); 14-20 (2002)

Blanco, A., Fuente, E., Negro, C., Monte, C. M., and Tijero, J., Focused beam reflectant measurement as a tool to measure flocculation, Tappi J. 1(10):14-20 (2002).

J. Tsubaki, K. Kuno, I. Inamine and M. Miyazawa, J. Soc. Powder Technol, Analysis of sedimentation and settling process of dense alumina slurries by hydrostatic pressure measurement, 40; 432-437 (2003)

Tsubaki, J., Kuno, K., Inamine, I., and Miyazawa, M., Analysis of sedimentation and settling process of dense alumina slurries by hydrostatic pressure measurement, J. Soc. Powder Technol. 40:432-437 (2003).

10.4164/sptj.40.432

T. Mori, K. Kuno, M. Ito, J. Tsubaki and T. Sakurai, Advanced Powder Technol, Slurry characterization by hydrostatic pressure measurement - analysis based on apparent weight flux ratio, 17(3); 319-332 (2006)

Mori, T., Kuno, K., Ito, M., Tsubaki, J., and Sakurai, T., Slurry characterization by hydrostatic pressure measurement - analysis based on apparent weight flux ratio, Advanced Powder Technol. 17(3):319-332 (2006).

10.1163/156855206777213393

J. Tsubaki, M. Kato, M. Miyazawa, T. Kuma and H. Mori, Chemical Engineering Science, The elects of the concentration of a polymer dispersant on apparent viscosity and sedimentation behavior of dense slurries, 56; 3021-3026 (2001)

Tsubaki, J., Kato, M., Miyazawa, M., Kuma, T., and Mori, H., The elects of the concentration of a polymer dispersant on apparent viscosity and sedimentation behavior of dense slurries, Chemical Engineering Science 56: 3021-3026 (2001).

10.1016/s0009-2509(00)00485-1

B. U. Cho, G. Garnier, T. G. M. van de Ven and M. Perrier, Colloids and Surfaces A: Physicochem. Eng. Aspects, A bridging model for the effect of a dual component flocculation system on the strength of fiber contacts in flocs of pulp fibers: Implications for control of paper uniformity, 287; 117-125 (2006)

Cho, B. U., Garnier, G., van de Ven, T. G. M., and Perrier, M., A bridging model for the effect of a dual component flocculation system on the strength of fiber contacts in flocs of pulp fibers: Implications for control of paper uniformity, Colloids and Surfaces A: Physicochem. Eng. Aspects 287:117-125 (2006).

10.1016/j.colsurfa.2006.03.029

H. L. Lee, H. J. Youn, S. G. Lee and Y. B. Jeong, Flocculation & formation - the action and effect (2005)

Lee, H. L., Youn, H. J., Lee, S. G., and Jeong, Y. B., Flocculation & formation - the action and effect, Journal of Korea TAPPI 284-291 (2005).

J. Y. Lee, E. H. Kim and Y. J. Sung, BioResources, Improvement in the retention and strength of paper made from white-grade wastepaper, 11(2); 4718-4726 (2016)

Lee, J. Y., Kim, E. H., and Sung, Y. J., Improvement in the retention and strength of paper made from white-grade wastepaper, BioResources 11(2):4718-4726 (2016).

10.15376/biores.11.2.4718-4726

Information

Publisher :Korea Technical Association of The Pulp and Paper Industry
Publisher(Ko) :한국펄프종이공학회
Journal Title :Journal of Korea TAPPI
Journal Title(Ko) :펄프종이기술
Volume : 50
No :2
Pages :13-19
Received Date : 2018-03-17
Revised Date : 2018-04-20
Accepted Date : 2018-04-23
DOI :https://doi.org/10.7584/JKTAPPI.2018.04.50.2.13

Journal of Korea TAPPI ISSN:0253-3200(Print) 펄프종이기술

All Issue

Literature Cited