한국정밀공학회지 (Journal of the Korean Society for Precision Engineering)

  • 제27권7호
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  • Pages.49-54
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  • 2010
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  • 1225-9071(pISSN)
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  • 2287-8769(eISSN)
한국정밀공학회 (Korean Society for Precision Engineering)
권호 표지

극저온 볼밀링 공정을 이용한 탄소나노튜브의 분산특성 연구

A Study on the Dispersion Characteristics of Carbon Nanotubes using Cryogenic Ball Milling Process

  • 이지훈 (경희대학교 기계공학과) ;
  • 이경엽 (경희대학교 기계공학과.산학협력기술원)
  • Lee, Ji-Hoon (Department of Mechanical Engineering, Kyung Hee Univ.) ;
  • Rhee, Kyong-Yop (Industrial Liaison Research Institute, Department of Mechanical Engineering, Kyung Hee Univ.)
  • 투고 : 2009.12.26
  • 심사 : 2010.03.08
  • 발행 : 2010.07.01
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초록

The cryogenic ball milling was performed on carbon nanotubes (CNTs) at an extremely low temperature to increase the dispersion of CNTs. The effects of milling speed and time on the deagglomeration and structural changes of CNTs were studied. FESEM was used to analyze the dispersion and the change of particle size before and after milling process. Transmission electron microscopic (TEM) analysis was also investigated the effect of cryogenic ball milling on the morphological characteristics of CNTs. The structural changes by the cryogenic ball milling process were further confirmed by x-ray diffraction (XRD) and Raman spectroscopic analysis. The results showed that the agglomeration of CNTs was significantly reduced and amorphous structure was observed at high milling speed. However, the milling time has no great effect on the dispersion property and structural change of CNTs compared with milling speed.

키워드

참고문헌

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