Towards a Method of Exploring the Limits of Low Frequency Time-Temperature Superposition Models in Predicting the High Frequency Response of Epoxy-Amine Resins
DMA has long been used to probe the viscoelastic properties of polymers. Not only has it been used to determine the glass transition temperature, but it is also often used to obtained data at higher frequencies through the principle of time-temperature superposition (TTS). There are several challenges which arise when using TTS and this poster highlights them in order to understand why TTS data is not so readily published within papers. The challenges include identifying your reference temperature, selecting your shift factor and the ideal master curve. These three challenges named are the main challenges with TTS and there is no one set method to overcome these when they are encountered.