Richard Laine

TA SDT 2960 Simultaneous DSC-TGA

Location: 2510 GG Brown Connector

DTA (Differential Thermal Analysis) measures heat flow to or from a sample as a function of temperature and time. The heat flow and temperature of the sample are monitored in comparison to the reference material. The amount of energy absorbed (endotherm) or evolved (exotherm) as the sample undergoes physical or chemical changes (eg melting, crystallization, curing) is measured in calories as a function of the temperature change. Any material reactions involving changes in heat capacity (eg glass transition) are also detected. TGA (Thermo Gravimetric Analysis) measures weight changes in a material as a function of temperature (or time) under a controlled atmosphere. Its principal uses include measurement of a material's thermal stability and composition. It is useful for characterizing polymers, organic or inorganic chemicals, metals or other common classes of materials Weight changes observed at specific temperatures correlate to volatilization of sample components, decomposition, oxidation / reduction reactions, or other changes. The DTA is performed simultaneously with TGA.