The HOT DISK thermal conductivity analyzer can complete performance tests such as thermal conductivity in seconds

The HOT DISK thermal conductivity analyzer can complete performance tests such as thermal conductivity in seconds

The Hot Disk TPS 2500 S is the industry-leading instrument for thermal properties, measuring thermal conductivity, thermal diffusivity and specific heat simultaneously (according to ISO/DIS 22007-2 standard). The TPS 2500 S can be used to test a large number of different types of materials, including solids , liquids, powders and composites. It can also be used to test synthetic materials such as polymers, coatings, plastics, oils, substrate materials, nanomaterials as well as liquids, gels, phase change or interface materials, as well as anisotropic materials such as fiber reinforced materials and many Layer material testing. In addition, TPS 2500 S can be used in materials such as high temperature superconductors, metal alloys, ceramics, rubber, additives, fabrics, glass, carbon and graphite. In addition, TPS 2500 S can be used on natural materials such as wood, grains, fluids, biological tissues, soils, rocks, metals and minerals.

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Many conventional industrial products can be classified into the above categories, including continuous fine chemicals or building materials or composites of conventional materials such as paper, foam, films, insulation, protective films and spacers. All of these samples can be quickly measured with the TPS 2500 S, which is unique in the field of thermophysical testing. There are other tests on the market, but to cover all these categories inevitably requires the integration of several different instruments, which is expensive, and all these tests can be done quickly and reliably with just one instrument, the TPS 2500 S.

Using TPS 2500 S to test is very convenient and reliable. It only needs to fix a Hot Disk probe between two samples. The probe acts as a heat source and a temperature sensor at the same time. The test process is very fast and accurate.

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Users can also use the TPS 2500 S single-sided test module for testing. At this point, the probe is fixed between a sample to be tested and another sample of known thermal conductivity, usually polystyrene. This option is widely used in the field of quality control. Compared with other single-sided technologies on the market, TPS technology can simultaneously provide real-time and accurate thermal conductivity and thermal diffusivity.

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For liquid, gel and powder samples, simply insert the Hot Disk probe into the material or apply the material to both sides of the probe when testing. For liquid testing, Hot Disk offers special liquid sample holders.

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The latest feature of the TPS 2500 S is that the test time has been increased to 1 second, which means that the minimum interval between temperature test records can reach 5 milliseconds. Thanks to this advancement, materials with thermal conductivity up to 400 W/(mK) can be tested using the basic module. In addition, the shorter test interval brings great convenience to the test of some extremely low viscosity liquids such as toluene and ethanol.

Technical index

  • Thermal conductivity: 0.005 – 1800 W/(mK)
  • Thermal diffusivity: 0.1 – 1200 mm2/s
  • Specific Heat: up to 5 MJ/(m3K)
  • Temperature range: 30 K – 1000 ℃
  • Test time: 1 – 1280 s
  • Repeatability: < 1%
  • Accuracy: <2%
  • Minimum sample size: thickness 0.5 mm, diameter 2 mm

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