DMA-q800 Dynamic Thermomechanical Analyzer

DMA-q800 Dynamic Thermomechanical Analyzerperformance indicators
Temperature range: -150~600 ℃ Force range: 0.0001~18N
Frequency range: 0.01~200Hz Dynamic deformation range: ± 0.5~10000 μ m
Heating rate: 0.1-20 ℃/min Modulus range: 103~3 × 1012 Pa
Constant temperature stability: ± 0.1 ℃

Maximum dynamic force: ± 18N; maximum static force: ± 18N

最小力： 0.0001N

Resolution of force: 0.00001N

Strain resolution: 1 nanometer

Modulus range: 103-1012Pa

Modulus accuracy: ± 1%

Tan δ sensitivity: 0.0001; Tan δ resolution: 0.00001

Frequency range: 0.01~200Hz (can be tested at any frequency point at this frequency)

Temperature range: -150 ℃ to 600 ℃

Heating rate: 0.1-20 ℃/min; Cooling rate: 0.1-10 ℃/min; Constant temperature stability: ± 0.1 ℃

DMA-q800 Dynamic Thermomechanical AnalyzerMain purpose:
The DMA dynamic thermomechanical analyzer is used to determine the mechanical and viscoelastic properties of materials that vary with time, temperature, or frequency under periodic vibration stress. Applied to thermoplastic, thermosetting materials, composite materials, elastomers, ceramics, metals and other viscoelastic materials, as well as fibers, films, etc. The following characteristics of the material can be studied:
● Storage modulus (rigidity) ● Loss modulus (damping)
● Loss angle ● Creep

● Stress relaxation ● Glass transition temperature
● Secondary phase transformation ● Curing process, etc

Dynamic Mechanical Analysis (DMA) measures the mechanical properties of materials, which are functions of time, temperature, and frequency. In addition to quantifying the viscoelasticity of materials, DMA can also quantify the properties of finished components and products, reflecting the important contribution of processing to the performance of end use products. DMA is commonly used to measure glass transition temperature (Tg) and secondary transformation, orientation caused by processing, cold crystallization, curing optimization, filler effects in composite materials, and so on. DMA can accurately measure material modulus, product stiffness, and other important mechanical properties such as damping, creep, and stress relaxation.

A dynamic mechanics analyzer is a mechanical instrument that can apply specific displacement or force to a sample and accurately quantify its force and displacement response. DMA measurement goes beyond the scope of simply quantifying the magnitude of the applied force divided by the magnitude of the displacement; It can accurately calculate the phase relationship between signals. This enables DMA analyzers to quantify the elastic (spring like) and viscous (fluid like) components of sample response, which is crucial for reliable and complete characterization of viscoelastic properties such as storage modulus, loss modulus, and dielectric loss tangent. These viscoelastic properties are almost always evaluated using ovens and refrigeration fittings within a certain temperature range, which can provide many insights into the relationship between structural characteristics and the performance of materials at different operating temperatures. Some advanced methods include Time Temperature Stacking (TTS), solidification studies, creep recovery, and stress relaxation analysis.

The TA dynamic mechanics analyzer with a wide range of categories is not only a best-selling product, but also covers a wide range of forces and applications. The incredible wide force measurement range from 0.1mN to 18N has been achieved, and the One Touch Way interface makes the DMA Express mode a method for evaluating the glass transition and secondary transition of solid materials. It can also characterize the influence of humidity. RSA-G2 is a research grade DMA that provides a maximum force of 35 N and dielectric stimulation attachments, and is equipped with a high-precision forced convection oven (FCO) for stable and rapid temperature control. Ultimately, the TA Instruments series high-strength DMA analyzer extends the analytical insights revealed by DMA to larger forces and sample sizes, providing valuable insights when materials cannot be miniaturized or for larger components or products. They also add high durability and fast fatigue testing methods, with the largest HF-DMA model providing up to 15000N of force.