Tensile properties are the most important indication of the strength and stiffnes of the material. The force necessary to pull the specimen apart is determined as well the deformation before breaking. Tensile modulus is used as a measure of stiffness and it is an important design parameter for end use applications. It is calculated based on measured force - deformation data. Tensile tests can be carried out at different temperatures according to application needs. Test automatisation and modern data logging systems are used in order to ensure high quality, reliable results.
Film must have certain resistance to tear loading. Tear strength indicates the average force required to propagate tearing through a specified length of the film sample. This test is suitable for investigation of orientation balance of the film. Normally tear strength is measured in two directions, parallel and transverse to the extrusion direction of the film.
A terpolymer is a polymer composed of three different mer units.
Thermogravimetry (TG, TGA) can be used to measure any reaction involving mass change. TG analysis is often complementary test to DSC, the weight loss curve giving a picture of the make-up of the material by showing the temperatures at which individual components volatilize.
Thermoanalytical methods such as Differential Scanning Calorimetry (DSC) and thermogravimetry (TG) provide information on the thermal stability of the polymers, their shelf-life under particular conditions and the effect of additives on thermal stability. The thermal stability of a polymer is usually measured as the oxidative induction time (OIT) at set temperature.
Thermomechanical Analysis (TMA) is is a technique for monitoring changes of physical dimensions (expansion, schrinkage, penetration) while the temperature of the sample is changed.