The Kinetics of Oxidation Curing of Polycarbosilane Fibers

Hao Wang; Xiao-dong Li; Xiao-xia Li; Bin Zhu; Dong-pyo Kim

Korean Journal of Chemical Engineering, Vol.21, No.4, 901-904, July, 2004

DOI10.1007/BF02705537 Export Citation

The Kinetics of Oxidation Curing of Polycarbosilane Fibers

Hao Wang, Xiao-dong Li^†, Xiao-xia Li, Bin Zhu, and Dong-pyo Kim¹

CFC Key Lab., National University of Defense Technology, Changsha, Hunan, P.R., China
¹Department of Fine Chemical Engineering and Chemistry, Chungnam National University, Daejeon 305-764, China

E-mail:

For the oxidation curing of polycarbosilane (PCS) fibers in air, a first-order reaction based on the weight gain w (in percentage) was approached with the kinetic equation dw/dt=k(w_m-w). The maximum weight gain w_m was observed to be 16% under normal oxidation conditions and the activation energy E to be 79.27 kJ/mol. The numeric integration based on the kinetics provides a precise prediction of the curing degree of PCS fibers under various heating programs and conditions.

Keywords:Polycarbosilane Fiber;Oxidation Curing;Kinetics

[References]

Bahl OP, Manocha LM, Carbon, 13, 297 (1975)
Filipuzzi L, Naslain R, Adv. Struct. Inorg. Compos., 35 (1992)
Grassie N, Moguchan R, Eur. Polym. J., 8, 257 (1972)
Hasegawa Y, J. Mater. Sci., 24(3), 1177 (1989)
Herman S, Dilhan MK, Suphan K, J. Appl. Polym. Sci., 42, 1087 (1991)
Ishikawa T, Kohtoku Y, Kumagawa K, Yamamura T, Nagasawa T, Nature, 391(6669), 773 (1998)
Kang PH, Yang HS, Korean J. Chem. Eng., 15(6), 585 (1998)
Livage J, Sanchez C, Babonneau F, "Chemistry of Advanced Materials," ed. Interracnte, L.V. and Hampden-Smith, M.J., Wiley-VCH, NY., ch. 9 (1998)
Nam JD, Seferis JC, J. Polym. Sci. B: Polym. Phys., 30, 455 (1992)
Shimoo T, Chen HM, Okamura K, J. Ceram. Sci. Jpn., 100(7), 929 (1992)
Taki T, Inui M, Okamura K, Sato M, Seguchi T, Appl. Magnetic Resonance, 2, 61 (1991)
Wang H, Li XD, Peng P, Kim D, Hong LY, Korean J. Chem. Eng., 20(3), 587 (2003)
Yajima S, Okamura K, Hayashi J, Omori M, J. Am. Ceram. Soc., 59(7-8), 324 (1976)

[Related Articles]

[1] Bahl OP, Manocha LM, Carbon, 13, 297 (1975)

[2] Filipuzzi L, Naslain R, Adv. Struct. Inorg. Compos., 35 (1992)

[3] Grassie N, Moguchan R, Eur. Polym. J., 8, 257 (1972)

[4] Hasegawa Y, J. Mater. Sci., 24(3), 1177 (1989)

[5] Herman S, Dilhan MK, Suphan K, J. Appl. Polym. Sci., 42, 1087 (1991)

[6] Ishikawa T, Kohtoku Y, Kumagawa K, Yamamura T, Nagasawa T, Nature, 391(6669), 773 (1998)

[7] Kang PH, Yang HS, Korean J. Chem. Eng., 15(6), 585 (1998)

[8] Livage J, Sanchez C, Babonneau F, "Chemistry of Advanced Materials," ed. Interracnte, L.V. and Hampden-Smith, M.J., Wiley-VCH, NY., ch. 9 (1998)

[9] Nam JD, Seferis JC, J. Polym. Sci. B: Polym. Phys., 30, 455 (1992)

[10] Shimoo T, Chen HM, Okamura K, J. Ceram. Sci. Jpn., 100(7), 929 (1992)

[11] Taki T, Inui M, Okamura K, Sato M, Seguchi T, Appl. Magnetic Resonance, 2, 61 (1991)

[12] Wang H, Li XD, Peng P, Kim D, Hong LY, Korean J. Chem. Eng., 20(3), 587 (2003)

[13] Yajima S, Okamura K, Hayashi J, Omori M, J. Am. Ceram. Soc., 59(7-8), 324 (1976)