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Influence of Surface Silica on the Pyrolysis of Silicones (NISTIR 6242)

Published

Author(s)

R R. Buch, John R. Shields, Takashi Kashiwagi, Thomas Cleary, Kenneth D. Steckler

Abstract

Silicones encompass a wide variety of noval materials that find applications in virtually every major industry sector. The dominant polymer in the silicone industry is polydimethylsiloxane (PDMS). The combustion of long chain PDMS exhibits a low heat release rate and the unique characteristic that the heat release rate does not increase significantly with an increase in external applied thermal radiant flux or pool size. The deposition of amorphous silica ash (a major combustion product of silicones) on the fuel surface is believed to play a significant role in mediating the fuel formation rate of silicones in fire scenarios. The objective of this study was to document and quantify the influence of surface silica on the pryolysis rates of PDMS. For this study, the gasification apparatus developed at NIST-BFRL by Steckler and others was used.
Citation
NIST Interagency/Internal Report (NISTIR) - 6242
Report Number
6242

Keywords

fire research, fire science, fire suppression, silicones, silica, pyrolysis

Citation

Buch, R. , Shields, J. , Kashiwagi, T. , Cleary, T. and Steckler, K. (1998), Influence of Surface Silica on the Pyrolysis of Silicones (NISTIR 6242), NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD, [online], https://doi.org/10.6028/NIST.IR.6242, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=912248 (Accessed July 20, 2024)

Issues

If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.

Created September 30, 1998, Updated October 12, 2021