Korean Chemical Engineering Research

The Korean Institute of Chemical Engineers (한국화학공학회)
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Effects of Surface-modification of Carbon Black on the Characteristics of Polymerized Toner

카본블랙의 표면개질이 중합토너의 특성에 미치는 영향

  • Lee, Eun Ho (Department of Chemical Engineering, School of Engineering, Chungbuk National University) ;
  • Kim, Dae Su (Department of Chemical Engineering, School of Engineering, Chungbuk National University)
  • Received : 2013.01.15
  • Accepted : 2013.08.27
  • Published : 2013.10.01
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Abstract

Carbon black was surface-modified to prepare styrene-based suspension polymerized toner with excellent carbon black dispersibility inside toner particles. Carbon black was oxidized first to introduce hydroxyl groups on the surfaces, then esterification between the hydroxyl groups and carboxyl groups of organic acids (oleic acid, palmitic acid, acrylic acid) was followed to obtain organically surface-modified carbon black. The surface-modification of carbon black was confirmed by FTIR. Apparent carbon black dispersibility in the monomer mixture of the binder resin was tested and the particle size of dispersed carbon black was measured by particle size analyzer. Optical micrographs showed that carbon black dispersibility inside toner particles was improved considerably when the carbon black surfacemodified with oleic acid was used. The polymerized toner prepared with the carbon black surface-modified with oleic acid showed ideal particle size and size distribution as a toner.

토너 입자 내부의 카본블랙의 분산성이 우수한 스타이렌 기반 현탁중합토너를 제조하기 위하여 카본블랙의 표면을 개질하였다. 산화반응을 통해 카본블랙 표면에 도입된 히드록시기와 유기산(올레산, 팔미트산, 아크릴산)의 카르복시기 사이의 에스터화 반응을 통해 표면이 유기화 개질된 카본블랙을 제조하였다. 카본블랙의 표면개질을 확인하기 위하여 FTIR을 이용하였다. 바인더 수지 모노머 혼합물에 대한 카본블랙의 가시적인 분산성 실험을 진행하였으며 입도분석기를 이용해 분산된 카본블랙의 입자 크기를 측정하였다. 광학현미경 사진을 분석한 결과 표면이 올레산으로 개질된 카본블랙을 사용할 경우 토너 입자 내부의 카본블랙의 분산성이 크게 향상되었다. 올레산으로 개질된 카본블랙을 이용해 제조한 중합토너는 입경 및 입경분포도 토너로서 이상적이었다.

Keywords

References

  1. Park, M. S. and Hong, S. K., "Synthesis of Black Toner Particles by Suspension Polymerization," J. Korea Soc. Imaging Sci., 3(1), 40-45(1997).
  2. Han, H. K., Lee, J. W., Park, D. W. and Shim, S. E., "Surface Modification of Carbon Black by Oleic Acid for Miniemulsion Polymerization of Styrene," Macromol. Res., 18(5) 435-441(2010). https://doi.org/10.1007/s13233-010-0505-1
  3. Xing, G., Zhang, J., Zhao, Y., Tang, J., Zhang, B., Gao, X., Yuan, H., Qu, L., Cao, W., Chai, Z. and Ibrahim, K., "Influences of Structural Properties on Stability of Fullerenols," J. Phys. Chem. B, 108(31), 11473-11479(2004). https://doi.org/10.1021/jp0487962
  4. Zhang, N., Xie, J. and Varadan, V. K., "Functionalization of Carbon Nanotubes by Potassium Permanganate Assisted with Phase Transfer Catalyst," Smart Mater. Struct., 11(6), 962-965(2002). https://doi.org/10.1088/0964-1726/11/6/318
  5. Tsubokawa, N., Satoh, T., Murota, M., Sato, S. and Shimizu, H., "Grafting of Hyperbranched Poly(amidoamine) Onto Carbon Black Surfaces Using Dendrimer Synthesis Methodology," Polym. Adv. Technol., 12(10), 596-602(2001). https://doi.org/10.1002/pat.148
  6. Takeuchi, Y., Fujiki, K. and Tsubokawa, N., "Preparation of Amphiphilic Carbon Black by Postgrafting of Polyethyleneimine to Grafted Polymer Chains on the Surface," Poly. Bull., 41(1), 85-90(1998). https://doi.org/10.1007/s002890050336
  7. Li, W., Xie, Z. and Li, Z., "Synthesis, Characterization of Poly-acrylate-g-carbon Black and Its Application to Soap-free Waterborne Coating," J. Appl. Polym. Sci., 81(5), 1100-1106(2001). https://doi.org/10.1002/app.1532
  8. Jang, H. S., Hong, J. H., Lee, J. W. and Shim, S. E., "Microencapsulation of Surface-modified Carbon Black by Miniemulsion Polymerization," Korean Chem. Eng. Res.(HWAHAK KONGHAK), 46(4), 669-675(2008).
  9. Lee, J. H., Lee, S. N. and Park, M. S., "Preparation of Polystyrene Particles Based on Interfacial Stability of Suspension Polymerization," J. Korean Printing Soc., 20, 65-77(2002).
  10. Iwata, N., Tani, K. and Watada, A., "Chemical Component Mapping of Pulverized Toner by Scanning Transmission X-ray Microscopy," Micron: the International Research and Review Journal for Microscopy, 37(4), 290-295(2006).
  11. Hong, J., Hong, C. K. and Shim, S. E., "Synthesis of Polystyrene Microspheres by Dispersion Polymerization Using Poly(vinyl alcohol) as a Steric Stabilizer in Aqueous Alcohol Media," Colloids Surf. A: Physicochem. Eng. Asp., 302, 225-233(2007). https://doi.org/10.1016/j.colsurfa.2007.02.027
  12. Jeon, J. W. and Kim, S. S., "A Study on the PVA Particle Manufacturing for Polymerization Type Fine Toner," J. Korea Soc. Dyers and Finishers, 15(6), 8-17(2003).
  13. Park, M. S., "Preparation of Polystyrene Beads by Suspension Polymerization with Hydrophobic Silica as a Stabilizer in Aqueous Solution," Polymer(Korea), 30(6), 498-504(2006).
  14. Hasegawa, J., Yanagida, N. and Tamura, M., "Toner Prepared by the Direct Polymerization Method in Comparison with the Pulverization Method," Colloids Surf. A: Physicochem. Eng. Asp., 153, 215-220(1999). https://doi.org/10.1016/S0927-7757(98)00445-2
  15. Yang, J., Wang, T. J. and He, H., "Particle Size Distribution and Morphology of in Situ Suspension Polymerized Toner," Ind. Eng. Chem. Res., 42, 5568-5575(2003). https://doi.org/10.1021/ie0301029
  16. Sawatari, N., Fukuda, M., Taguchi, Y. and Tanaka, M., "Composite Polymer Particles with a Gradated Resin Composition by Suspension Polymerization," J. Appl. Poly. Sci., 97(2), 682-690(2005). https://doi.org/10.1002/app.21823
  17. Stevens, M. P., "Polymer Chemistry: An Introduction," Oxford Univ. Press, New York, 204(1999).
  18. Choi, D. and Park, M., "Preparation of Positively Charged Toner Particles by Suspension Polymerization Technique," J. Korea Soc. Imaging Science, 6(1), 61-68(2000).
  19. Lee, S. Y. and Park, L. S., "Effect of Poly(vinyl alcohol) and Poly(vinyl alcohol) Mono Thiol on the Stability Properties of Poly(vinyl acetate) Latex," Polymer(Korea), 24(5), 579(2000).
  20. Roberto, O. and Ernesto, G., "Poly(vinyl alcohol) as a Stabilizer in the Suspension Polymerization of Styrene : The Effect of the Molecular Weight," J. Appl. Poly. Sci., 67, 71-77(1998). https://doi.org/10.1002/(SICI)1097-4628(19980103)67:1<71::AID-APP8>3.0.CO;2-L
  21. Dating, T., "Synthesis and Properties of Super Absorbents by Inverse Suspension Polymerization Using an Amphiphilic Copolymer as Steric Stabilizer," Chinese J. Synth. Chem., 11(1), 41-46(2003).
  22. Wang, P., Guo, Z. and Liu, Y., "Studies on the Suspension Polymerization of Poly-organic Silicone Resin Beads," Ion Exchange and Adsorption, 24(2), 131-138(2008).
  23. Chang, B. J., Oh, I. S. and Kim, J. I., "Size Control and Electrical Properties of Styrene-based Micro-particle Copolymer by Suspension Polymerization," Polymer(Korea), 23(2), 204-212(1999).
  24. Park, S., Kim D. E., Byun J., Yu, J. G. and Kim, D. S., "Styrenebutylacrylate Based Suspension Polymerized Toner Prepared Using PVA as a Suspending Agent," Korean Chem. Eng. Res. (HWAHAK KONGHAK), 48(2), 212-217(2010).
  25. Yu, J. G. and Kim, D. S., "Effects of Calcium Hydroxide/phosphoric Acid Suspending Agents on the Characteristics of Styrenebased Suspension Polymerized Toners," Korean Chem. Eng. Res. (HWAHAK KONGHAK), 50(5), 923-928(2012). https://doi.org/10.9713/kcer.2012.50.5.923
  26. Kim, N. S. and Kim, D. S., "Preparation of Methyl Methacrylate-Styrene System Core-Shell Latex by Emulsion Polymerization,"J. Korean Oil Chemists' Soc., 22(2), 96-105(2005).
  27. Pang, X., Cheng, G. and Lu, S., "Bi-seeded Emulsion Polymerization in the Presence of Poly(methyl methacrylate) and Polystyrene," React. Funct. Polym., 62(1), 69-75(2005). https://doi.org/10.1016/j.reactfunctpolym.2004.09.001

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