Abstract
The development of a mechanistic model for the transformation of BlackglasTM polymer to a silicon carboxide glass during pyrolysis was based on the known chemistry and architecture of the polysiloxane precursors. The pyrolysis process and resulting mass loss is due to the occurrence of multiple chemical reactions that lead to the evolution of hydrocarbon gases such as methane, ethane and hydrogen. The kinetic parameters used to fit the model were estimated from literature values on bond energies and chemical kinetics, and results were compared with TGA/RGA experiments obtained on pyrolyzed BlackglasTM composites. The effects of heating rate, temperature and curing cycle on outgassing kinetics will be explained in terms of the chemistry of decomposition of the polymer, heat transfer, specimen geometry and thermal properties of the composite.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 407-415 |
| Number of pages | 9 |
| Journal | Ceramic Engineering and Science Proceedings |
| Volume | 18 |
| Issue number | 4 B |
| State | Published - Jan 1 1997 |
| Event | Proceedings of the 1997 21st Annual Conference on Composites, Advanced Ceramics, Materials, and Structures-B - Cocoa, FL, USA Duration: Jan 12 1997 → Jan 16 1997 |
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All Science Journal Classification (ASJC) codes
- Ceramics and Composites
- Materials Chemistry
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Development of mechanistic model for BlackglasTM pyrolysis : Comparison of theory and experiment. / Gill, W. N.; Kulkarni, A.; Wang, F.; Lee, Y. W.; Madsen, J.; Tobin, A.; Donnellan, Thomas M.
In: Ceramic Engineering and Science Proceedings, Vol. 18, No. 4 B, 01.01.1997, p. 407-415.Research output: Contribution to journal › Conference article
TY - JOUR
T1 - Development of mechanistic model for BlackglasTM pyrolysis
T2 - Comparison of theory and experiment
AU - Gill, W. N.
AU - Kulkarni, A.
AU - Wang, F.
AU - Lee, Y. W.
AU - Madsen, J.
AU - Tobin, A.
AU - Donnellan, Thomas M.
PY - 1997/1/1
Y1 - 1997/1/1
N2 - The development of a mechanistic model for the transformation of BlackglasTM polymer to a silicon carboxide glass during pyrolysis was based on the known chemistry and architecture of the polysiloxane precursors. The pyrolysis process and resulting mass loss is due to the occurrence of multiple chemical reactions that lead to the evolution of hydrocarbon gases such as methane, ethane and hydrogen. The kinetic parameters used to fit the model were estimated from literature values on bond energies and chemical kinetics, and results were compared with TGA/RGA experiments obtained on pyrolyzed BlackglasTM composites. The effects of heating rate, temperature and curing cycle on outgassing kinetics will be explained in terms of the chemistry of decomposition of the polymer, heat transfer, specimen geometry and thermal properties of the composite.
AB - The development of a mechanistic model for the transformation of BlackglasTM polymer to a silicon carboxide glass during pyrolysis was based on the known chemistry and architecture of the polysiloxane precursors. The pyrolysis process and resulting mass loss is due to the occurrence of multiple chemical reactions that lead to the evolution of hydrocarbon gases such as methane, ethane and hydrogen. The kinetic parameters used to fit the model were estimated from literature values on bond energies and chemical kinetics, and results were compared with TGA/RGA experiments obtained on pyrolyzed BlackglasTM composites. The effects of heating rate, temperature and curing cycle on outgassing kinetics will be explained in terms of the chemistry of decomposition of the polymer, heat transfer, specimen geometry and thermal properties of the composite.
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M3 - Conference article
VL - 18
SP - 407
EP - 415
JO - Ceramic Engineering and Science Proceedings
JF - Ceramic Engineering and Science Proceedings
SN - 0196-6219
IS - 4 B
ER -