Journal of the Korean Crystal Growth and Crystal Technology (한국결정성장학회지)

The Korea Association of Crystal Growth (한국결정성장학회)
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Surface coating and characterizations of non-swelling property mica

비팽윤성 운모의 표면코팅 및 특성평가

  • Park, Ra-Young (Department of Gemological Engineering, Dongshin University) ;
  • Seok, Jeong-Won (Department of Gemological Engineering, Dongshin University) ;
  • Park, Sun-Min (Processing Tech. Lab., KICET) ;
  • Kim, Pan-Chae (Department of Gemological Engineering, Dongshin University)
  • 박라영 (동신대학교 보석공학과) ;
  • 석정원 (동신대학교 보석공학과) ;
  • 박선민 (요업기술원 공정기술팀) ;
  • 김판채 (동신대학교 보석공학과)
  • Published : 2008.06.30
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Abstract

This study is to establish the coating technique for synthetic mica and to prepare synthetic mica with the non-aqueous 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 $70^{\circ}C$ 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.

본 연구에서는 합성운모에 대한 코팅기술을 확립한 뒤, 비수성을 나타내는 합성운모를 제조하였다. 합성운모의 표면코팅은 고속교반기를 사용하여 행하였으며, 스테아린산으로 코팅된 합성운모의 특성은 침적실험, XRD 및 SEM을 이용하여 분석하였다. 본 연구 결과, 교반기의 내부온도는 $70^{\circ}C$를 유지하고, 10분 동안 1600 rpm/min을 행함으로써 운모 표면에 스테아린산의 코팅이 가능하였다. 또한 SEM 관찰결과로부터, 스테아린산과 운모의 혼합비율, 교반기 내부온도, 회전속도에 의해 특성이 변화하는 반면 코팅처리시간과는 무관함을 알 수 있었다.

Keywords

References

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