화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Chemical Engineering Research, Vol.50, No.5, 923-928, October, 2012
Export Citation
수산화칼슘/인산 현탁제가 스타이렌 기반 현탁중합토너의 특성에 미치는 영향
Effects of Calcium Hydroxide/Phosphoric Acid Suspending Agents on the Characteristics of Styrene-Based Suspension Polymerized Toners
유재광1, 2, 김대수1, †
  • 1충북대학교 화학공학과, 361-763 충북 청주시 흥덕구 내수동로 52
  • 2(주)파캔오피씨, 363-911 충북 청원군 옥산면 1108-3
Jae Goang Yu1, 2, and Dae Su Kim1, †
  • 1Department of Chemical Engineering, Chungbuk National University, 52 Naesudong-ro, Heungdeok-gu, Cheongju, Chungbuk 361-763, Korea
  • 2Park & OPC Co. Ltd., 1108-3 Oksan-myeon, Cheongwon-gun, Chungbuk 363-911, Korea
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초록
고품질의 현탁중합토너를 제조하기 위해서는 수상 현탁계의 최적화가 매우 중요하다. 따라서 본 연구에서는 무기현탁제로 사용한 수산화칼슘(CaOH2)/인산(H3PO4)(Ca/P)의 몰비 및 수상의 pH가 스타이렌 기반 현탁중합토너의 특성에 미치는 영향을 중점적으로 조사하였다. 먼저 수상을 중성조건(pH=7.5)으로 고정하고 Ca/P의 몰비를 1.5:1부터 1.76:1 까지 변화시켰다. 그 결과 Ca/P의 몰비를 1.73:1로 하였을 때 이상적인 인산칼슘염(하이드록시아파타이트)이 만들어졌으며 이 조건에서 제조된 중합토너는 입도분포, 원형화도 및 대전특성이 우수하였다. 이 결과를 바탕으로 Ca/P의 몰비를 1.73:1로 고정하고 수상을 약산성(pH=5.5) 및 약염기성(pH=9.5) 조건으로 변화시켰다. 그 결과 약산성 조건에서 제조된 중합토너는 더욱 더 우수한 입도분포, 원형화도 및 대전특성을 나타냈으며 인쇄품질도 매우 우수하였다. Ca/P의 몰비와 수상의 pH 조건을 최적화하여 고품질의 현탁중합토너를 제조할 수 있었다.
Optimizing a water-phase suspending system is very important to manufacture high-quality suspension polymerized toners. Therefore, in this study, the effects of the molar ratio of calcium hydroxide (CaOH2)/phosphoric acid (H3PO4)(Ca/P), which were used as inorganic suspending agents, and pH of the water-phase on the characteristics of styrene-based suspension polymerized toners were mainly investigated. At first, the water-phase was fixed to neutral condition (pH=7.5) and Ca/P molar ratio was changed from 1.5:1 to 1.76:1. As a result, an ideal calcium phosphate (hydroxyapatite) was prepared at the Ca/P molar ratio of 1.73:1 and polymerized toners prepared at this condition showed good particle size distribution, circularity and charging characteristic. Based on this result, Ca/P molar ratio was fixed to 1.73:1 and pH of the water-phase was changed to weak acidic (pH=5.5) and weak basic (pH=9.5) conditions. As a result, polymerized toners prepared under the weak acidic condition showed very good particle size distribution, circularity and charging characteristic along with excellent printing quality. High-quality suspension polymerized toners could be prepared via optimizing Ca/P molar ratio and pH of the water-phase.
Keywords:Styrene-based Polymerized Toner;Suspension Polymerization;Calcium Phosphate Suspending Agent
  1. Hong J, Hong CK, Shim SE, Colloids and Surf. A: Physicochem. Eng. Asp., 302, 225 (2007)
  2. Jeon JW, Kim SS, J. Korea Soc.Dyers and Finishers., 15(6), 8 (2003)
  3. Park M, Polym.(Korea), 30(6), 498 (2006)
  4. Lee JH, Lee SN, Park MS, J. Korean Printing Society., 20, 65 (2002)
  5. Iwata N, Tani K, Watada A, Micron: the International Research and Review Journal for Microscopy., 37(4), 290 (2006)
  6. Yang J, Wang TJ, He H, Wei F, Jin Y, Ind. Eng. Chem. Res., 42(22), 5568 (2003)
  7. Sawatari N, Fukuda M, Taguchi Y, Tanaka M, J. Appl. Polym. Sci., 97(2), 682 (2005)
  8. Stevens MP, Oxford Univ.Press, New York., 204 (1999)
  9. Takeuchi M, Oguchi T, CMC Press, Tokyo., “Advanced Technology and Application of Toner,”, 158 (2009)
  10. Pang X, Cheng G, Lu S, React. Funct. Polym., 62(1), 69 (2005)
  11. Choi D, Park M, J. Korea Soc.Imaging Science., 6(1), 61 (2000)
  12. Lee SY, Park LS, Polym.(Korea), 24(5), 579 (2000)
  13. Olayo R, Garcia E, Garcia-Corichi B, Sanchez-Vazquez L, Alvarez J, J. Appl. Polym. Sci., 67(1), 71 (1998)
  14. Dating T, Chinese J. Synth. Chem., 11(1), 41 (2003)
  15. Wang P, Guo Z, Liu Y, Ion Exchange and Adsorption., 24(2), 131 (2008)
  16. Chang BJ, Oh IS, Kim JI, Joo HJ, Polym.(Korea), 23(2), 204 (1999)
  17. Lee SJ, Lee HN, Hu OM, Korea Soc. Dyers and Finishers., 18(1), 182 (2006)
  18. Park S, Kim DE, Byun J, Yu JG, Kim DS, Korean Chem. Eng. Res., 48(2), 212 (2010)
  19. Liu HB, Wen SG, Wang JH, Zhu Y, J. Appl. Polym. Sci., 123(6), 3255 (2012)
  20. Jarcho M, Bolen CH, Thomas MB, Bobick J, Kay JF, Doremus RH, J. Mater. Sci., 11(11), 2027 (1976)
  21. Futagami T, Okamoto T, J. Ceram. Soc.Japan., 95, 775 (1987)
  22. Monma H, Kamiya T, J. Mater. Sci., 22(12), 4247 (1987)
  23. Mengeot M, Harvill ML, Gilliam OR, J. Crystal Growth., 19(3), 199 (1973)
  24. Arends J, Schuthof J, Van der Linden WH, Bonnema P, J. Crystal Growth., 46(2), 213 (1979)