PAN계 활성탄소 섬유의 세공발달 특성(II)-활성화-

박종학; 조병린

Journal of the Korean Industrial and Engineering Chemistry, Vol.4, No.1, 113-124, March, 1993

Export Citation

PAN계 활성탄소 섬유의 세공발달 특성(II)-활성화-

Characteristics of Pore Development for Activated Carbon Fiber from Polyacrylonitrile(II)-Activation-

박종학, 조병린

초록

Polyacrylonitrile계 섬유를 전구체로 하여 비등온 과정에 의한 활성화를 승온속도를 달리한 TGA(thermogravimetric analysis) 방법으로 연구하였다. 탄소섬유 -H₂O(30%)-N₂계 비등온 활성화 과정에서 유도된 속도식 f=1-exp(-a△T)^b는 실험값과 잘 일치하였다. 전환율에 따른 세공 용적은 pore volume model에 의한 이론값과 비교적 잘 일치하였고, 이때의 세공 구조는 승온속도, 활성화 온도와 내부 및 외부 전환율과의 복합적인 작용에 의하여 결정되었다.

Thermogravimetric analysis of copolymer of acrylonitrile(95%) and methyl acrylate(5%) have been carried out to investigate the activation under H₂O(30%) -N₂atmosphere at various heating rates. The kinetic equation [f=1-exp(-a △T)^b] which was derived on the basis of the nonisothermal activation process of carbon fiber in the H₂O(30%) -N₂system showed good agreement with experimetal results. The pore volume upon conversion was in good agreement with the model of theoretical pore volume. The pore structures of the activated carbon fiber were influenced by the heating rate, activation temperature and internal-external conversions.

[References]

Park JH, Cho BR, J. Korean Ind. Eng. Chem., 2(2), 147 (1991)
Herbert DW, Activated Carbon, Ferdinand Pub., 5 (1962)
일본특허 50-20030
일본특허 51-137694
Dollimore D, Heal CTR, J. Appl. Chem., 14, 109 (1964)
Brunauer S, Emmett PH, Teller E, J. Am. Chem. Soc., 60, 309 (1938)
Kasaoka S, Sakata Y, Shimada M, J. Chem. Eng. Jpn., 18, 426 (1985)

[Referenced By]

[1] Park JH, Cho BR, J. Korean Ind. Eng. Chem., 2(2), 147 (1991)

[2] Herbert DW, Activated Carbon, Ferdinand Pub., 5 (1962)

[3] 일본특허 50-20030

[4] 일본특허 51-137694

[5] Dollimore D, Heal CTR, J. Appl. Chem., 14, 109 (1964)

[6] Brunauer S, Emmett PH, Teller E, J. Am. Chem. Soc., 60, 309 (1938)

[7] Kasaoka S, Sakata Y, Shimada M, J. Chem. Eng. Jpn., 18, 426 (1985)