Mathematical Model of the Process of Thermal Destruction of Polymer Binders under Arbitrary Heating Conditions

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Аннотация

A mathematical model of the process of thermal destruction of polymer binders has been developed, taking into account experimentally established dependences of the decomposition depth on temperature and the amount of coke residue on the heating rate. A method for determining the kinetic parameters of the process by the method of inverse problems has been developed. Kinetic parameters of the model for six binders are determined.

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Авторлар туралы

V. Yudin

Central Aerohydrodynamic Institute

Хат алмасуға жауапты Автор.
Email: vmyudin@yandex.ru
Ресей, Zhukovsky

Әдебиет тізімі

  1. Madorsky S.L. Thermal decomposition of organic polymers // M.: Publishing House “Mir”, (1967).
  2. Korshak V.V. Heat-resistant polymers // M.: “Science”, 1969.
  3. Semenov N.N. On some problems of chemical kinetics and reactivity // Publishing House of the USSR Academy of Sciences, 1964.
  4. Khitrin L.N. Physics of gorenje and explosion // Publishing house of Moscow State University. 1967.
  5. Wendlandt U. Thermal analysis methods // M.: Publishing house “Mir”, (1978).
  6. Vishnevsky G.E., Yudin V.M. // IFZH. 1969. V. 16, № 5, P. 879.
  7. Yudin V.M., Khodzhaev Yu.D., Kuzenkova V.I. et al. // Issue 2065. M.: Proceedings of TsAGI. 1980. 27 p.

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Жүктеу
2. Fig. 1. Dependence curves of the depth of decomposition on temperature for different polymer binders: 1 - K-9FA, 2 - K-9X, 3 - TSK, 4 - FN, 5 - ETF, 6 - VSH-27F.

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3. Fig. 2. Comparison of experimental data and results of calculation of thermal degradation of phenol-formaldehyde resin binder by equations (1) and (2): 1 - experiment, 2 - calculation by equation (1), 3 - calculation by equation (2), 4 - temperature.

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4. Fig. 3. Curves of dependence of coke residue value on heating rate for different polymer binders: 1 - K-9FA, 2 - K-9X, 3 - TSK, 4 - FN, 5 - ETF, 6 - VSH-27F.

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5. Fig. 4. Comparison of calculated (light dots) and experimental (dark) curves of changes in the relative density of the polymer binder ETF at different heating rates: dT/dt = 0.11 (, ♦); 2.39 (, ), 28.3 (○, ); ■ - thermogravimetric curve.

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6. Fig. 5. Calculated curves of relative density change at complex heating modes: - 30 and 1 K/s; - 1 and 30 K/s, and coincidence of calculated and experimentally obtained () values of coke residue.

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