In this paper, the thermo-mechanical response of a polyurethane based shape-memory polymer material was analyzed using a TA Instruments DMA. Two cyclic test procedures were developed for quantitative measurement of the thermal-mechanical properties.
DetailsIn this apps note, the properties of PLA are studied under various controlled humidity and temperature conditions.
DetailsThis note applies the workflow outlined in TA457 [3] to characterize coated and uncoated separators. In addition to TMA, differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), and dynamic mechanical analysis (DMA) will be utilized.
DetailsAsh testing is a common technique used to determine the composition of materials. By heating a sample to high temperature in air all organic substances will pyrolyze leaving behind only inert and inorganic substances. This residue is then weighed to determine its weight percentage in the original material.
DetailsThe purpose of this paper is to explain and illustrate a systematic thermal analysis approach (DSC, MDSC®, and TGA) for detecting drug-excipient incompatibility and then optionally exploring the rate of reaction (kinetics) and reaction mechanism (chemistry).
DetailsThermogravimetric Analysis (TGA), which provides information about the thermal stability and decomposition rate of materials, is an excellent technique for rapidly comparing the behavior of materials tested with different flame retardants.
DetailsThe nitinol shape-memory alloy solid-solid transition is studied using differential scanning calorimetry (DSC), which reveals the reversible and hysteretic nature of this transition. This can be used to provide information on the composition of the nitinol alloy. It also serves as a tool to detect the existence of, and changes in, the intermediate R-phase.
DetailsThe purpose of this paper is to provide a universally acceptable definition of “Melting” and then illustrate that loss of crystalline structure in many materials can be caused by numerous chemical processes other than thermodynamic or “True Melting”.
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