Thermogravimetric analyzer Discovery TGA

Specification

General description

• Very important complementary method for identification of polymeric materials for both, scientist or engineers.
• TGA determines the amount of the weight change in a material (common weight 10–20 mg) as a function of increasing temperature (up to 1200 °C) or isothermally under defined atmosphere.
• Sensitive microbalance gives information about the weight change that can be caused by decomposition, oxidation, sublimation, evaporation and electric or magnetic transformation.
• Connection to the infrared spectrometer allowing analysis of evolved gases during decomposition of the material.

Applications

• Thermal stability of plastics, composites, copolymers, rubbers, biopolymers, hydrogels, gels.
• Assessment of filler content in composites (glass fibers, carbon fibers, limestone, soot, montmorillonite etc.).
• Assessment of quality of supplied polymeric material with respect to amount of additives, colors, fillers.
• Assessment of humidity in products (biomaterials, food, cosmetics).
• Investigation of processes such as sublimation, evaporation, chemical reactions (oxidation).
• Investigation of kinetics of decomposition processes including determination of activation energy.
• Analysis of evolved gases during thermal degradation utilizing connected infrared spectrometer.

Specifications

• Analysis of materials from laboratory temperature up to 1200 °C.
• Solid samples, powders, fibers, hydrogels etc. can be analyzed.
• Typical sample mass is about 10–20 mg.
• Assessment under inert (nitrogen) or oxidation (air) atmosphere, atmosphere can be switched during measurement.
• Linear heating with rates from 0.1 to 500 °C/min, ballistic cooling with the speed 500 °C/min.