Force and Temperature Modulated TMA Measurements of Fibers

In this work, a special technique, known as temperature modulated TMA, is used to simultaneously determine the expansion and shrinkage of a stretched fiber during the relaxation process. For reasons of heat transfer, only low frequencies can be used for temperature modulation. The tensile stress can be simulataneously modulated and allows Young's modulus to be determined at the same time. One single, double-modulated TMA measurement therefore enables you to investigate three important properties and hence study the effect of stretching conditions and other manufacturing processes. The method can also be applied to similar processes with other materials (e.g. films).

^{Force and temperature modulated TMA measurements of fibers | Thermal Analysis Application No. UC 124 | Application published in METTLER TOLEDO Thermal Analysis UserCom 12}