Journal
POLYMER DEGRADATION AND STABILITY
Volume 91, Issue 6, Pages 1373-1379Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.polymdegradstab.2005.07.021
Keywords
thermal degradation; flammability; ceramifiable composites; fillers
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Silicone polymer composites filled with mica, glass frit, ferric oxide and/or a combination of these were developed as part of a ceramifiable polymer range for electrical power cables and other high temperature applications. This paper reports on the thermal stability of polymer composites as determined by thermogravimetric techniques, thermal conductivity and heat release rate as measured by cone calorimetry. The effects of fillers on thermal stability and flammability of silicone polymer are investigated. Of the fillers studied, mica and ferric oxide were found to have a stabilising effect on the thermal stability of silicone polymer. Additionally, mica and ferric oxide were found to lower heat release rates during combustion, but only mica was found to increase time to ignition. (c) 2005 Elsevier Ltd. Ail rights reserved.
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