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Kinetic Analysis of Thermal Decomposition of Polymer Using a Dynamic Model
Department of Chemical Engineering, Hanyang University, 17 Haengdang-dong,Sungdong-gu, Seoul 133-791, Korea 1Department of Environmental Engineering, Chonan National Technical College, 275 Budae-dong, Chonan, Chungnam 330-717, Korea
Korean Journal of Chemical Engineering, September 2000, 17(5), 489-496(8), 10.1007/BF02707154
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Abstract
The objective of this work was to develop a kinetic analysis method by using a dynamic model that accounts for the thermal decomposition behavior of polymers with the variation of the conversion. The proposed method was applied to predict the thermal decomposition of polyethylene. The kinetic analysis was studied by conventional thermogravimetric technique with various heating rates in nitrogen atmosphere. To verify the appropriateness of the proposed method, the results from this work were compared with those of various analytical methods and the literature. The TG data were also compared with the values calculated by using the kinetic parameters from the dynamic method. It was found that the dynamic method gave a reliable value of kinetic parameters, and the activation energy and the reaction order of thermal decomposition of high-density polyethylene were larger than those of low-density and linear low-density polyethylene.
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Cooney JD, Day M, Wiles DM, J. Appl. Polym. Sci., 28, 2887 (1983)
Denq BL, Chiu WY, Lin KF, J. Appl. Polym. Sci., 66(10), 1855 (1997)
Friedman HL, J. Polym. Sci. C-Polym. Lett., 6, 183 (1964)
Jellinek HHG, J. Polym. Sci., 4, 378 (1950)
Jimenez A, Berenguer V, Lopez J, Sanchez A, J. Appl. Polym. Sci., 50, 1565 (1993)
Kim S, "Pyrolysis of Scrap Tire Rubbers," Ph.D. Thesis, University of Wisconsin-Madison, U.S.A. (1995)
Ghim YS, HWAHAK KONGHAK, 29(4), 503 (1991)
Kissinger HE, Anal. Chem., 29, 1702 (1957)
Mucha M, J. Polym. Sci. Symp., 7, 25 (1976)
Murray P, White J, Trans. Brit. Ceram. Soc., 54, 151 (1955)
Murty MVS, Grulke EA, Bhattacharyya D, Polym. Degrad. Stabil., 61, 421 (1998)
Nam JD, Seferis JC, J. Polym. Sci. B: Polym. Phys., 30, 455 (1992)
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Salin LM, Seferis JC, J. Appl. Polym. Sci., 47, 847 (1993)
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Wu CH, Chang CY, Hor JL, Shih SM, Chen LW, Chang FW, Waste Manage., 13, 221 (1993)
