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Case Study-Increasing Silicones Resistance to Thermal Degradation

Silicones can withstand high temperatures for extended periods of time; however, thermal degradation remains a concern. Depending on the application and requirements of the end user, thermal degradation may be combated by the incorporation of phenyl into the polymer structure or the addition of a thermal stability additive (filler). The incorporation of both phenyl and fillers will provide the best resistance to thermal degradation; however, fillers would not be an option for transparent material. As an alternative, increasing phenyl content would then be necessary in transparent materials to provide resistance to thermal degradation.