Thermokinetic Studies in the Polycarbosilane–Oligosilazane–Rolivsan System
- Авторы: Shestakov A.M.1, Sinyakov S.D.1, Sorokin O.Y.1, Khaskov M.A.1
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Учреждения:
- All-Russia Research Institute of Aviation Materials
- Выпуск: Том 91, № 6 (2018)
- Страницы: 1035-1043
- Раздел: Macromolecular Compounds and Polymeric Materials
- URL: https://journals.rcsi.science/1070-4272/article/view/215916
- DOI: https://doi.org/10.1134/S1070427218060241
- ID: 215916
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Аннотация
Curing and pyrolysis of ceramic-forming systems based on polycarbosilane, oligovinylsilazane, and Rolivsan® were studied by differential scanning calorimetry, thermal gravimetric analysis, and IR spectroscopy. Mechanisms of three-step curing were suggested. The kinetics of curing, occurring without weight changes, was described assuming that the conversion rate is proportional to the thermal flux. In the case of pyrolysis accompanied by the weight loss, the conversion rate was assumed to be proportional to the weight loss rate. Based on the kinetic models obtained, heat treatment conditions were suggested to ensure uniform progress of curing and pyrolysis.
Об авторах
A. Shestakov
All-Russia Research Institute of Aviation Materials
Email: khaskovma@viam.ru
Россия, Moscow, 105005
S. Sinyakov
All-Russia Research Institute of Aviation Materials
Email: khaskovma@viam.ru
Россия, Moscow, 105005
O. Sorokin
All-Russia Research Institute of Aviation Materials
Email: khaskovma@viam.ru
Россия, Moscow, 105005
M. Khaskov
All-Russia Research Institute of Aviation Materials
Автор, ответственный за переписку.
Email: khaskovma@viam.ru
Россия, Moscow, 105005
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