Thermogravimetric Analysis (TGA)
Measures the change in mass of a material as a function of time and temperature. A temperature program is applied to a sample located in a sensitive microbalance (capable of detecting weigh changes as small as 0.1 μg). The temperature may then be programmed to increase or remain the same and the weight loss is monitored. Typically, the sample remains in an inert atmosphere (N2). Ideally, it is utilized to assess volatile content, organic, and inorganic content of a material, moisture content, filler content, decomposition kinetics, thermal stability degradation characteristics, aging and life time breakdown etc.
We use in our center thermogravimetric analyzer (Q5000 IR, TA Instruments)
It provides superior temperature resolution of thermal events. It can be used to understand the thermal stability and composition up to 1000 ºC, by analyzing the weight changes in a material as a function of temperature (or time) under a controlled atmosphere of N2.
Top of specification:
- Autosampler – 25 sample Included
- Weight Range 100 mg
- Sensitivity < 0.1 μg
- Linear Heating Rate (°C/min) 0.1 to 500
- Isothermal Temp Accuracy +/- 1 °C
- Furnace Heating Infrared
- Weighing Accuracy +/- 0.1%
Differential Scanning Calorimetry (DSC)
Measures the heat flow associated with phase transitions or reactions, such as melting, crystallization, solid phase transition, glass transition, curing, sorption, etc. It is ideally used to determine melting point, glass transition temperature, crystallinity, crystalline impurities ,etc.
We have HP-DSC 1 Mettler which can use both as a regular DSC and as a high pressure DSC.
The new high-pressure DSC cell is based on the successful Thermal Analysis DSC 1 technology and guarantees outstanding performance thanks to its FRS5 and HSS7 DSC sensors. The HP DSC 1 operates at over pressures from 0 to 10 MPa and from room temperature up to 700 °C.
The high-pressure DSC is an excellent instrument for studying the influence of pressure and atmosphere on a sample or for separating an effect that is overlapped by vaporization.
Increased pressure influences all physical changes and chemical reactions in which a change in volume occurs. For material testing, process development or quality control there is often no alternative to DSC measurements under pressure.