Dynamic Mechanical Analysis DMA 303 Eplexor® Method, Technique, Applications Analyzing & Testing

Dynamic Mechanical Analysis UNLOCKING THE MECHANICAL MATERIAL PROPERTIES OF A WIDE RANGE OF MATERIALS Dynamic Mechanical Analysis (DMA/DMTA) is an indispensable tool for determining the mechanical properties of engineering materials, particularly the viscoelastic behavior that characterizes polymers. Changes in the viscoelastic behavior of a material can be measured by applying forces and deformations under dynamic conditions, for example, as a function of temperature, time, frequency, stress, atmosphere, or a combination of these parameters. How Can Dynamic Mechanical Analysis Help You Fulfill...

Why the DMA 303 Eplexor® Stands Out Application of Precise Forces up to 50 N Dynamic and Static Understand the mechanical behavior of even stiff materials with an unprecedented 50 N in a desktop DMA. Wide Temperature Range from -170°C to 800°C Test a wide range of materials and a material‘s broad thermal behavior within this unrivaled temperature range. Frequency Range of 0.001 Hz to 150 Hz Better understanding of a material‘s structure and properties is obtained when a wide range of deformation rates can be applied. Highest Sensitivity with 1-nm Resolution Detect minute changes in the mechanical...

Static Drive (Stepper motor) Responds to sample elongation Especially important for such investigations as tensile tests Travel range: 30 mm Contactless Optical Position Sensor No friction 1-nm resolution Custom-Designed Drive System Temperature-controlled, leight-weight electro-magnetic drive For precise application of forces up to 50 N RFID* Tag on Probe and Frame Recognition of the sample holder type Automatic selection of the correct calibration 3D-Printed Silicon Carbide Furnace Lining Thin-walled but robust Exceptional heat transfer Time-saving – fast heating and cooling Temperatures at...

Specimens of clearly defined geometry, cut from sheets, plates, or molded shapes, are mounted in a suitable sample holder. The DMA‘s moving probe applies a static and/or dynamic sinusoidal force, generated by ... A non-contact sensor detects dynamic sample deformation. The system‘s additional stepper motor drive adjusts when a sample experiences a length change, such as thermal expansion. This static displacement is monitored by a second contactless sensor. The furnace of the DMA 303 Eplexor® features two independent temperature control loops to ensure homogeneous conditions at the sample. This...

Storage Modulus E’, Loss Modulus E’’ and tan δ Certain materials, such as polymers, exhibit viscoelastic behavior; they have both elastic properties (like an ideal spring) and viscous ones (like an ideal damper). The measurement curve on the right shows a typical DMA measurement result for a polymeric material that is undergoing a glass transition. The green curve depicts the storage modulus, E’, the red curve shows the dynamic loss modulus, E’’, and the blue curve shows the derived phase shift and the resulting loss factor, tan δ. DMA is extremely sensitive to glass transition as E’ shows a...

Advanced Instrument Design Offering Flexibility and Convenience The unique suspended and moving sample holder of the DMA 303 Eplexor® arranged below the measuring system prevents contamination from falling sample fragments and allows easy and safe sample handling. We Take Care of All Users Clear View The height-adjustable measuring head accommodates for different users' heights or preferences for standing or sitting, offering optimal comfort during use. The illuminated sample holder area makes it easy to set up samples and geometries. This, in combination with heightadjustable sample holders,...

IMPROVED STATUS INFORMATION – EVEN FROM AFAR Get complete insights into your measurements with the DMA 303 Eplexor®. Our advanced instrument offers a comprehensive overview of your current measurement on the built-in display. The innovative LED status bar allows you to check the general instrument status of the instrument even from afar. The integrated color display provides real-time updates on important information, such as: Measurement progress Temperature Force Frequency No more time-consuming logging into your PC – the information is right there. Visual support when changing sample holders...

EFFECTIVE CHOICE OF COOLING SYSTEMS Smart and Economical Cooling Solution for Your LowTemperature Experiments Many applications, such as low-stiffness polymers, require a measurement start below room temperature. Air Chiller System The AIC 80 cooling system is a compact air intracooler that operates entirely without liquid nitrogen. It is a compact cooling unit based on a heat exchanger system with a long insulated connection line, allowing the air intracooler to be placed under the table or on the side, whichever is most convenient in your laboratory. The valve is software-controlled and will...

NETZSCH offers a wide variety of sample holders for its DMA 303 Eplexor®. This results in optimal adaptation of the test conditions to the sample size and stiffness, as well as to the application. For example, a different sample holder is needed to measure a thin polymer film versus a stiff material such as a fiber-reinforced composite. RFID* tag for automatic sample holder recognition Grooves supporting toolless installation Fixture guides supporting correct insertion of sample holder The latest generation of NETZSCH DMA sample holders feature a low-mass design. There is a choice of heat-resistant...

Clamping Systems to Suit Your Every Need Tension sample holder This sample holder is perfect for solid materials. The sample doesn't suffer from clamping effects and results are therefore ideal. The three-point bending tool is equipped with self-adjusting outer sample supports. This allows for good results to be achieved even on slightly warped samples. Tensile clamps are commonly used for films and fibers. With a force up to 50 N, even strips of moderately stiff materials can be measured. Specimens are fixed with only one screw, ensuring evenly distributed clamping pressure. Laser-etched, non-slip...