열처리 피치를 사용한 탄소성형체의 산화안정화 |
조광연, 김경자 |
요업기술원 나노소재응용본부 |
The Oxi-stabilization of Carbon Precursor Using Heat Treated Pitch |
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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. |
Key words:
Oxi-stabilization, Swelling, Mesophase pitch, Dimensional stability |
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