ISO 11359 Thermomechanical Analyzer Thermomechanical Testing Machine Thermal Mechanism Tester Thermal Test Instrument
ISO 11359 Thermomechanical Analyzer Thermomechanical Testing Machine Thermal Mechanism Tester Thermal Test Instrument
Instrument Overview
The LR-108 Thermomechanical Analyzer is an instrument that utilizes Thermomechanical Analysisto investigate the mechanical properties of various materials. It is capable of measuring the temperature-deformation curves of materials under conditions of constant heating rates, thereby enabling the determination of key parameters such as the coefficient of thermal expansion, glass transition temperature (Tg), and flow temperature (Tf). Furthermore, by incorporating auxiliary accessories, it can also be used to test properties such as the Vicat Softening Temperature (VST) of thermoplastic polymers.
In addition to measuring the coefficient of thermal expansion, the Thermomechanical Analyzer is capable of detecting glass transitions that are often undetectable by Differential Scanning Calorimetry (DSC)—specifically in materials where segmental motion is restricted, such as highly cross-linked polymers or highly filled polymer blends. Its measurement sensitivity is significantly higher than that of the DSC method. The instrument offers a selection of testing modes under various stress conditions—including compression, bending, tension, penetration, and expansion—making it applicable to a wide range of fields and sample types, such as coatings, fibers, films, bulk solids, soft or rigid polymers, and single-crystalline substances.
The LR-108 features enhanced functionality, including automatic lifting and lowering of the sample holder, as well as an automatic stop mechanism. This design optimizes the workflow by eliminating the need to manually adjust the load position for different testing methods; consequently, it enables the measurement of the coefficient of thermal expansion, Tg, Tf, and VST—all from a single, fixed load position. Both the connecting sleeve and the load components are fabricated from nickel alloy, resulting in a significant improvement in both testing efficiency and measurement accuracy.
Applicable Standards
GB/T 36800.1, GB/T 36800.2, GB/T 11998, ISO 11359-2, GB/T 1633
IISO 11359 Thermomechanical Analyzer Thermomechanical Testing Machine Thermal Mechanism Tester Thermal Test Instrument
Technical Specification
|
Test Chamber Temperature Range |
Room temperature – 500°C |
|
Temperature Accuracy |
±0.5°C |
|
Heating Rate |
1°C – 10°C/min |
|
Temperature Control Element |
Pt100 |
|
Furnace Cavity Temperature Sensing Unit |
Thermocouple |
|
Temperature Resolution |
0.1°C |
|
Effective Displacement Measurement Range |
0 – 2.5 mm |
|
Displacement Measurement Accuracy |
±0.001 mm |
|
Deformation Measurement Displacement Sensor |
RS232 serial port data output |
|
Load for Glass Transition Temperature |
512 g |
|
Load for Coefficient of Thermal Expansion |
≤ 4 kPa |
|
Load for Vicat Softening Temperature |
1000 g |
|
Time Display Mode |
Automatic calculation via internal clock |
|
Time Error |
±1 s/h |
|
Heating Method |
Resistance wire heating controlled by solid-state relay |
|
Heating Voltage |
AC 220 V, 50 Hz |
|
Heating Power |
800 W |
|
Test Modes |
Tensile, Flexural, Compressive, Penetration, Expansion |
|
Tensile Test Maximum Clamping Thickness |
< 3 mm |
|
Flexural Indenter Radius |
R3.0 ± 0.10 mm |
|
Flexural Support Radius |
R3.0 ± 0.10 mm |
|
Flexural Support Span |
15.0 mm |
|
Compressive Indenter Area |
12.56 mm² |
|
Compressive Indenter Diameter |
Φ4.0 ± 0.05 mm |
|
Penetration Needle Tip Area |
1.00 mm² |
|
Penetration Needle Diameter |
Φ1.13 ± 0.05 mm |
|
Expansion Probe Area |
47.75 mm² |
|
Expansion Probe Diameter |
Φ7.8 ± 0.05 mm |
|
Specimen Holder |
Automatic Lifting/Lowering |
|
Total Power Consumption |
1000 W |
|
Power Supply |
220 V ± 10%, 50 Hz |
|
Instrument Dimensions |
460 mm × 310 mm × 550 mm |
|
Instrument Weight |
Approx. 19 kg |
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