Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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The Oxi-stabilization of Carbon Precursor Using Heat Treated Pitch

열처리 피치를 사용한 탄소성형체의 산화안정화

  • 조광연 (요업기술원 나노소재응용본부) ;
  • 김경자 (요업기술원 나노소재응용본부)
  • Published : 2003.10.01
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Abstract

By heat treating coal tar pitch between 450∼500$^{\circ}C$, mesophase pitch could be obtained. Subsequently, this pitch was oxi-stabilized between 160∼240$^{\circ}C$ in air for the purpose of reducing swelling and distortion. The mechanism of stabilization was analysed using the thermo-gravity and FT-IR. To investigate the effect of oxi-stabilization, the shore hardness and bending stress were measured with carbonized green body which was made from oxi-stabilized coal tar pitch.

콜타르 피치를 450∼50$0^{\circ}C$로 가열하여 메조페이스 피치를 제조하였다. 열처리된 피치는 시편의 부풀림과 변형을 줄이기 위해 공기 중 160∼24$0^{\circ}C$로 산화안정화하였다. 고온열처리핏치를 이용한 부피를 가진 성형체의 산화안정화 원리를 조사하기 위해 열중량감소, FT-IR을 측정하였다. 부피를 가진 성형체에 대한 산화안정화의 영향은 쇼아경도, 곡강도를 측정하여 파악하였다.

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References

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Cited by

  1. Preparation and Characteristic of Carbon/Carbon Composites with Coal-tar and Petroleum Binder Pitches vol.26, pp.4, 2015, https://doi.org/10.14478/ace.2015.1035