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TGA instruments can be programmed to switch gases during the test to provide a wide range of information in a single experiment.

The insert is the TGA profile. TG-EGA instrumentation is used to study the physical and chemical processes that result in mass loss or gain. Like standard TGA, the sample is heated in a controlled gas atmosphere using a programmed temperature sweep or isothermal hold. But TG-EGA goes one step further: a gas analyzer is coupled to the TGA furnace using a heated transfer line, which enables analysis of the gases evolved by the sample during heating and pyrolysis. The evolved gas analyzer is used to identify the chemistries present in the off-gassing and pyrolyzed components.

DSC performs quantitative calorimetric measurements on solid, liquid or semisolid samples. This feature enables the direct measurement of specific heat capacity of a material using a single experiment.


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MDSC applies a sinusoidal temperature modulation superimposed over a linear heating rate. MDSC is a powerful technique which makes it possible to measure weak transitions, separate overlapping thermal events and provide highly accurate heat capacity measurements. TMA is used to study physical properties of viscoelastic materials under mechanical loading as a function of temperature and time.

Measurements are performed in either compression or tension mode by a probe that applies force to the sample. Typical viscoelastic materials exhibit volume changes with ramping temperature.

TG-DTA-DSC Thermal Analysis | Thermal Analysis Services – MSE Supplies LLC

As the sample changes dimension, the probe travels up or down, and the distance of travel is precisely measured by a transducer coupled to the probe. The measured change in sample length correlates with such properties as shrinkage, expansion, swelling and softening. TMA techniques involve selection of the correct probe and conditions to measure the properties of interest. Typical probe configurations include:. Polymers respond to the energy of motion in two ways: 1 elastic response which is important for shape recovery and 2 viscous response which is essential for dispersing mechanical energy and preventing breakage.

Dynamic mechanical analysis DMA is used to study these responses, called viscoelastic properties, under conditions of low applied mechanical force. These special materials are only available on request and at additional cost. The analysis is normally run in a flowing nitrogen atmosphere except for determinations of oxidative stability where air or oxygen is used.

We currently offer TGA analyses in nitrogen or air. Other non-explosive, non-corrosive, and non-toxic atmospheres may be provided at additional cost.

Thermal analysis techniques provide valuable information on the thermal properties of materials

Glass transition temperatures Tg , crystalline melting temperature Tm , degree of crystallinity and heat of fusion, oxidative stability, heats and kinetics of polymerization reactions. Determination of cure in epoxy prepegs, solder mask cure analysis, cure kinetics of thermoset encapsulants. Melting points, energy and temperatures of dehydration or other small molecule loss, secondary transitions. Weight loss vs. Determination of fillers, reinforcements, and pigments.

Battery and Battery Material Development Using Thermal Analysis and Calorimetry

Analysis of rubber compositions. Also, volatilization of additives, kinetics of decomposition, and oxidative stability studies. Resin content of printed circuit boards. Volatilization curves for fluxes. Thermal decomposition of wire insulation and components. Determination of temperatures of dehydration, elimination, and decomposition. Quantification of volatiles loss. System decomposition curves.

Filler and reinforcement analysis. Oxidative stability. Lifetime prediction. A sample submission form must accompany each sample submitted. The sample label give on the submission form must be the same as the label on sample vial. Common types include interferometry, thermomechanical and thermophysical analysis, differential scanning calorimetry, and thermogravimetry among others.

Calorimetry

These thermal analysis standards are instrumental in guiding laboratories and their respective scientists and engineers in the proper procedures to follow when performing these thermal analytical methods. Additive Manufacturing Standards. Cement Standards and Concrete Standards. Fire Standards and Flammability Standards. Geotechnical Engineering Standards.

Consumer Product Evaluation Standards. Corrosion Standards and Wear Standards. Durability of Nonmetallic Material Standards.