Preparation and Characterization of Magnetic Toner Particles by Direct Polymerization Method

Abstract:

In this study a kind of black toner, containing polymer, magnetic iron oxide pigment, and several other additives, was prepared by a suspension polymerization method. The morphology, influence factor of particle size, and glass transition of prepared toner were discussed. SEM image showed that the produced micron-sized particles have a spherical surface and the various chemicals were mixed into monomers during manufacturing of the particles. Discussion about particle formation and stability concluded that the toner particle size related with stabilizer concentration, stirrer speed, and crosslinking agent concentration. The bigger particles, resulted from droplets coalescence during polymerization process, disappeared when enough PVA stabilizer was used in the aqueous medium. .Increasing the stirrer speed corresponded to the decrease of the particles size. But any increase in stirrer speed t did not contribute to size reduction in small particles below 2μm. It was found that particle size decrease with the addition of crosslinking agent. The DSC result indicated the glass transition of polymerized toner could be effectively adjusted according to Fox equation through change the monomer ratio.

• Periodical: Advanced Materials Research (Volumes 217-218)
• Pages: 1702-1707
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.217-218.1702
• Online since: March 2011
• Authors: Yu Feng Duan, Zhao Xia Fu
• Keywords: Glass Transition, Magnetic Toner, Morpholoy, Particle Formation, Polymerization Method

References

[1] E. Vanzo, US Patent 4, 077, 804. (1978).

[2] Tan Hock Seng, Ng Tie Hwee and Mahabadi Hadi Khan, Journal of Imaging Science and Technology, Vol. 36(1992), p.587.

[3] Yamaguchi Chisekl and Takeuch Manabu, Journal of Imaging Science and Technology, Vol. 40(1996), p.436.

[4] Kamiyama M., Maeda M, Totsuka H and et al, Journal of Imaging Science and Technology, Vol. 39（1995), p.433.

[5] Takag Koji, Castle G.S. P and Takeuchi Manabu. Powder Technology, Vol. 135-136(2003), p.35.

[6] Hirose Naohiro, Matsushima Asao, Hirano Shiro and et al, U.S. Patent 7, 276, 319 (2007).

[7] Gady B, Quesnel D J, Rimai D S and et al, Journal of Imaging Science and Technology, Vol. 43 (1999), p.288.

[8] Tamura Shigeto, Kay Takaaki), Fujita Ryoichi and et al, U.S. Patent 7, 776, 501 (2010).

[9] R. D. Patel, G. E. Kmiecik-Lawrynowicz, M. A. Hopper and et al, US Patent 5, 370, 964 (1994).

[10] Uchinokura Osamu, Sasaki Fumihiro, Mochizuki Satoshi and et al, US Patent7, 741, 002 (2010).

[11] Kamiama Masafumi, Koyama Kikuhiko, Matsuda Hideomi and et al, Journal of Applied Polymer Science, Vol. 50 (1993), p.107.

[12] Kaburagi Takeshi, Mikuriya Yushi, Komoto Keiji and et al, US Patent 7, 153, 625 (2006 ).

[13] Shinijo Yasushi, Nishizawa Hideyuki, Tsunemi Kouichi and et al, Journal of Imaging Science and Technology, Vlo. 43 (1999), p.467.

[14] Yufeng Duan and Qiang Zhang, J. Image Science and Technology, Vol. 48 (2004), p.6.

[15] C. K. Ober and K. P. Lok, US Patent 4, 617, 249 (1986).

[16] Hasegawa Jun, Yanagida Noboru and Tamura Mitsuhiro, Colloids and surfaces A: Physiochemical and Engineering Aspects, Vol. 153 (1999), p.215.

[17] Harry R. Allcock, Frederick W. Lampe and James E. Mark. Contemporary polymer chemistry. (Pearson Education, Inc., USA 2003).