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Surface coating and characterizations of non-swelling property mica

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주제분류재료공학

초록

This study is to establish the coating technique for synthetic mica and to prepare synthetic mica with the nonaqueous property. The surface coating of synthetic mica is prepared with stearic acid using the high speed stirrer. The characterizations for mica powders coated the stearic acid are carried out by the deposition test, XRD and SEM. The results of research could be coated the stearic acid on the mica by 1600 rpm/min at 70℃ for 10 min. From the observation of SEM was found that the non-aqueous property mica could obtained by mixture ratios for stearic acid and mica, the inner temperature and rotation speed of the stirrer but treated time be unrelated.

Abstract

This study is to establish the coating technique for synthetic mica and to prepare synthetic mica with the nonaqueous property. The surface coating of synthetic mica is prepared with stearic acid using the high speed stirrer. The characterizations for mica powders coated the stearic acid are carried out by the deposition test, XRD and SEM. The results of research could be coated the stearic acid on the mica by 1600 rpm/min at 70℃ for 10 min. From the observation of SEM was found that the non-aqueous property mica could obtained by mixture ratios for stearic acid and mica, the inner temperature and rotation speed of the stirrer but treated time be unrelated.

참고문헌 (8)

  1. H.J. Massonne, "Thermodynamic properties of white micas on the basis of high-pressure experiments in the systems K2O-MgO-Al2O3-SiO2-H2O and K2O-FeO-Al2O3-SiO2-H2O", Lithos, 41, pp.229~ (1997)
  2. K.R. Franklin, "Synthesis and ion-exchange properties of Na-4-mica", Journal of Materials Chemistry, 6(1), pp.109~ (1996)
  3. R. Ravella, "Synthesis of swelling micas with stoichiometric amount of fluorine, characterization and ion exchange studies", Applied Clay Science, 39, pp.180~ (2008)
  4. 석정원, "은나노를 이용한 비팽윤성 운모의 수열적인 표면개질 및 특성평가", 한국결정성장학회지, 17(4), pp.172~178 (2007), 한국결정성장학회
  5. P.J. Lyoo, "Surface modification and characterization of sericite particles by using suspension polymerization method", J. of Mineral and Energy Resources, 35(3), pp.229~ (1998)
  6. S.B. Joeng, "Determination of the surface properties calcite treated with stearic acid by inverse gas chromatography", J. of Mineral and Energy Resources, 36(5), pp.345~ (1999)
  7. B. Gangulya, "Surface modification of mica due to titanium sputtering as studied by positron annihilation", Applied Radiation and Isotopes, 64, pp.651~ (2006)
  8. D. Desai, "Solid-state interaction of stearic acid with povidone and its effect on dissolution stability of capsules", International Journal of Pharmaceutics, 354, pp.77~ (2008)

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