Korean Chemical Engineering Research

The Korean Institute of Chemical Engineers (한국화학공학회)
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The Effect of Reactant Composition on the Synthesis of Resole-Type Phenolic Bead

레졸형 구형 페놀입자의 합성에서 반응물의 조성이 입자 형성에 미치는 영향

  • Hahn, Dongseok (Department of Polymer Science and Engineering, Korea National University of Transportation) ;
  • Kim, Hongkyeong (Department of Polymer Science and Engineering, Korea National University of Transportation)
  • 한동석 (한국교통대학교 나노고분자공학과) ;
  • 김홍경 (한국교통대학교 나노고분자공학과)
  • Received : 2013.10.10
  • Accepted : 2013.12.12
  • Published : 2014.02.01
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Abstract

The effects of reactant composition on the particle size distribution, synthetic yield, and density of Phenol-formaldehyde bead were examined in the synthesis of resol-type phenolic resin. Decrease of the content of DI water as dispersion media can increase the viscosity of suspension, which may cause the difference of particle size distribution and aggregation. The average particle size of synthesized beads was also decreased with the increasing content of stabilizer which can affect the interfacial area. The amount of crosslinking agent showed no effect on the size distribution and synthetic yield, but it made a decrease in the density of synthesized bead due to the macropore in the bead.

페놀-포름알데히드를 이용하여 레졸형 구형 페놀수지 입자를 합성함에 있어 반응물의 조성이 입도분포, 수율 및 밀도에 미치는 영향을 확인하였다. 분산매의 양을 감소시킴에 따라 현탁액의 점도가 증가하며 이로 인해 입도분포의 변화 및 응집 현상의 원인이 됨을 확인하였고, 안정제의 양을 증가시킴에 따라 현탁입자의 표면적을 증가시키기 위해 평균입도가 감소하는 것을 확인하였다. 적정량 이상의 경화제의 사용은 입도분포 및 수율에는 영향을 미치지 않으나 형성된 입자 내부의 격렬한 경화반응으로 인해 발생하는 물분자의 탈출이 원활하지 않게 되어 밀도가 감소하는 것을 SEM 사진을 통해 확인하였다.

Keywords

References

  1. Knop, A. and Pilato, L. A., Phenolic Resins, Springer-Verlag, Berlin(1986).
  2. Weyl, H., Ed. Handbuch der Organischen Chemie, Makromolekulare Stoffie. 4th de., vols. 14/1 and 14/2 Thieme: Stuttgart(1961).
  3. Nylen, P. and Sunderland, E., Modern Surface Coatings, Wiley, London(1965).
  4. Bechmann, A. and Miiler, K., Phenoplaste VEB, Verlag, Leipzig (1973).
  5. Hultzsch, K., Chemie der Phenolrarze, Springer, Berlin(1950).
  6. Carswell, T. S., High Polymer, Vol. 3: Phenoplasts, Their Structure, Properties and Chemical Technology, Inter Science, New York (1947).
  7. Martin, R. W., The Chemistry of Phenolic Resins: the Formation, Structure and Reactions of Phenolic Resins Related Products, Wiley, New York(1956).
  8. Hesse, W., In Ullmann's Encyclopedia of Industrial Chemistry, Vol. A19, VCH: Weinheim, p371(1991).
  9. Othmer, K., ed., Encyclopedia of Chemical Technology, 3rd ed., Vol. 17: Phenolic Resins, Wiley, New York(1983).
  10. Geimer, R. L. and Christiansen, A. W., "Critical Variables in the Rapid Cure and Bonding of Phenolic Resins," Forest Prod. J., 46, 67(1996).
  11. Strong, A. B., Plastics: Materials and Processing, 3rd Ed., Chapter 9, Prentice Hall, New Jersey(2006).
  12. Han, D., Kim, D. and H. Kim, "Synthesis of Resol-Type Phenolic Beads via Suspension Polymerization Technique," Korean Chem Eng. Res.(HWAHAK KONGHAK), 51, 279(2013). https://doi.org/10.9713/kcer.2013.51.2.279
  13. Mark, H., Bikales, N., Overberger, C. and Menges, G., Encyclopedia of Polymer Science and Engineering, 11, 45, John Wiley Sons, New York(1988).
  14. Mark, H., Othmer, D., Overberger, C. and Seaborg, G., Encyclopedia of Chenmical Technology, 3rd ed., 17, 384, John Wiley & Sons, New York(1982).
  15. Knop, A. and Scheib, W., Chemistry and Application of Phenolic Resin, Springer-Verlag, New York(1979).
  16. Brode, G. L., Phenolic Resins, in Encyclopedia of Chemical Technology, Kirk-Othmer Ed., 17, John Wiley, New York(1982).
  17. Kopf, P. W., Phenolic Resin, in Encyclopedia of Polymer Science and Engineering, ed. by Mark, Bikales, Overberger, and Menges, 11, John Wiley, New York(1988).
  18. Anderson, G. J., Ingram, W. H., and Hampden, I. I., "Phenolic Resin Emulsions Comprising a Resol Resin and a Soluble Protein," U.S. Patent No 3, 862, 060(1975).
  19. Udvardy, Otto, G., Titus, Patricia, E., Navratil, and Martin, "Powdered Phenol-formaldehyde Resin," U.S. Patent No 4, 424, 300(1983).
  20. McCarthy, Jr. and Justin N., "Aqueous Phenolic Resole Dispersion Containing Certain Hydroxyalkylated Gums as Interfacial Agents," U.S. Patent No 4, 039, 525(1977).
  21. Palanisamy, M., Khanam, J., Nagalingam, A. and Gani N., "Experimental Design to Predict Process Variables in the Preparation of Cellulose Based Sustained Release Microspheres System Loaded with Prednisolone-cyclodextrin Complex," Korean J. Chem. Eng., 28, 10(2011). https://doi.org/10.1007/s11814-011-0073-x