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

Korea Technical Association of the Pulp and Paper Industry (한국펄프종이공학회)
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Adsorption Analysis of Fluorescent Whitening Agent on Cellulosic Fibers by Zeta Potential Measurement

지료의 제타전위 측정을 통한 형광증백제의 흡착 평가

  • Lee, Ji Young (Dept. of Environmental Materials Science/IALS, Gyeongsang National University) ;
  • Kim, Eun Hea (Dept. of Forest Products, Gyeongsang National University) ;
  • Kim, Chul Hwan (Dept. of Environmental Materials Science/IALS, Gyeongsang National University) ;
  • Park, Jong Hye (Dept. of Forest Products, Gyeongsang National University)
  • 이지영 (경상대학교 환경재료과학과/농업생명과학연구원) ;
  • 김은혜 (경상대학교 임산공학과) ;
  • 김철환 (경상대학교 환경재료과학과/농업생명과학연구원) ;
  • 박종혜 (경상대학교 임산공학과)
  • Received : 2015.11.26
  • Accepted : 2015.12.17
  • Published : 2015.12.30
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Abstract

Many researchers have proposed analytical methods to measure the adsorption of di-sulpho fluorescent whitening agents (D-FWAs), but practical methods for D-FWA utilization in an actual paper mill have not been established. In particular, the D-FWA adsorption behavior must be monitored in paper mills to ensure the effective use of D-FWAs. This study used the zeta-potential of pulps as an indicator of the adsorption behavior of a D-FWA. We identified the relationship between the actual adsorption of the D-FWA and the zeta-potential of the pulps as a function of D-FWA addition. zeta-potential measurements were then used to analyze the D-FWA adsorption behavior under different conditions of pulp type, conductivity, and pH. The actual adsorption of a D-FWA was proportional to the ${\Delta}zeta-potential$ of the pulps (i.e., the difference between the zeta-potential of a pulp containing no D-FWA and one containing the D-FWA). The ${\Delta}zeta-potential$ of the pulps was therefore adopted for adsorption analysis. A higher adsorption of the D-FWA was observed onto Hw-BKP than onto Sw-BKP because of the shorter fiber length and higher fines content of Hw-BKP. A high conductivity and an acidic pH decreased the D-FWA adsorption because of direct effects of high ion concentrations and low pH on the D-FWA solubility. Therefore, a D-FWA must be added to Hw-BKP under low conductivity conditions and at neutral or alkaline pH to optimize the D-FWA adsorption.

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References

  1. Weaver, H., Surface Brightening of Paper in Surface Application of Paper Chemicals, 1st Ed., Blackie Academic & Professional Press, London, pp. 156-174 (1997).
  2. Kim, C. H., Lee, J. Y., Kim, B. H., Choi, J. S., Lim, G. B., and Kim, D. M., Study on the thermal fastness of fluorescent whitening agents, Journal of Korea TAPPI 44(1):10-15 (2012).
  3. Holmberg, M., Dyes and fluorescent whitening agents, In Papermaking Science and Technology, 1st Ed., TAPPI Press, Atlanta, GA, USA, pp. 304-320 (1997).
  4. Kim, C. H. and Lee, J. Y., Effect of polyvinyl alcohol on the fluorescent whitening agent for surface sizing, Appita J. 65(1):1-6 (2012).
  5. Stana, K. K., Pohar, C., and Ribitsch, V., Adsorption of whitening agents on cellulose fibers - Monitored by streaming potential measurements, calorimetry and fluorescence, Colloid & Polymer Science 273(12):1174-1178 (1995). https://doi.org/10.1007/BF00653086
  6. Damant, A. P. and Castle, L. J., Determination of fluorescent whitening agents in paper and board packaging materials by capillary electrophoresis, Journal of Microcolumn Separations 11(4):259-262 (1999). https://doi.org/10.1002/(SICI)1520-667X(1999)11:4<259::AID-MCS2>3.0.CO;2-K
  7. Chen, H. and Ding, W. J., Hot-water and solid-phase extraction of fluorescent whitening agents in paper materials and infant clothes followed by unequivocal determination with ion-pair chromatography-tandem mass spectrometry, Journal of Chromatography A 1108(2):202-207 (2006). https://doi.org/10.1016/j.chroma.2006.01.011
  8. Kaji, M., Enomae, T., and Isogai, A., Study on the quantification method of fluorescent whitening agent contained in the paper, Journal of Japan TAPPI 62(5):590-600 (2008). https://doi.org/10.2524/jtappij.62.590
  9. Shadkami, F., Helleur, R., and Sithole, B. B., The analysis of optical brightening agents in paper samples using liquid chromatography with high-resolution mass spectrometry, Journal of Wood Chemistry and Technology 31(1):42-57 (2011). https://doi.org/10.1080/02773811003725695
  10. Kim, J. S., Kim, D. H., and Kim, K., Determination of fluorescent whitening agents in paper materials by ion-pair reversed-phase high-performance liquid chromatography, Bulletin of the Korean Chemical Society 33(12):3971-3976 (2012). https://doi.org/10.5012/bkcs.2012.33.12.3971
  11. Huang, X. N., Huang, Y. G., Chai, X. S., and Wei, W., Study of adsorption kinetics for fluorescent whitening agent on fiber surfaces, Science in China Series B: Chemistry 51(5):473-478 (2008). https://doi.org/10.1007/s11426-008-0013-8
  12. Lee, J. Y., Youn, H. J., and Lee, H. L., Fundamental study for quantitative analysis of the fluorescent whitening agent (FWA) content of paper and process water, BioResources 7(1):315-326 (2012).
  13. Gess, M. J., Introduction to the electrokinetics of papermaking, In Retention of Fines and Fillers During Papermaking, TAPPI Press, Atlanta, GA, USA, pp. 27-50 (1998).
  14. Zakrajbek, N., Influence of pulp properties on the adsorption of cationic starch, Tappi Journal 7(11):23-27 (2008).