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| A
New DSC-Sensor Technique - "from the Heaven" |
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| Differential
Scanning Calorimetry, DSC, is well-known as a fast and easy-to-operate
thermoanalytical measuring
technique according to industrial standards such as ISO 11357,
ASTM E 793, ASTM E 794, ASTM E 1356, DIN 53765 or DIN 65467 for
research & development, quality management, failure analysis,
and process optimization in the wide field of polymers. |
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| Due to the restricted sensitivity of conventional
DSC sensors, detection of smallest effects, especially in highly-filled
and reinforced polymers or in thin polymer coatings, was not
always possible. Impurities in polymer mixtures or in recycling
materials were hidden, especially in the low temperature range.
At the same time, a fast response time is necessary for resolution
of peaks that occur in close proximity, for example, in liquid
crystal polymers or in semicrystalline thermoplastic blends as
PE-LD/PE-LLD. |
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| Cooperation with a well-known German institute
for aerospace technology, NETZSCH Geraetebau GmbH developed the
entirely new (patent-pending) µ-Sensor which can be installed
in the proven DSC 204 F1 Phoenix®. |
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| These seemingly contradictory requirements
for heat-flow sensors can now be overcome. In the sensor material
which is derived from sensing techniques originally developed
for satellites provides a much better signal-to-noise ratio than
conventional sensors. The performance of the F1 with
the µ-Sensor is ideal for failure analysis where the sample
amount is often limited. In contrast to dedicated micro-calorimeters,
an extended temperature range from -150 to 400°C can be offered.
Faster heating and cooling rates provide a much higher sample
throughput, especially if the F1 is upgraded with
an automatic sample changer (ASC) for up to 64 different crucibles
for sample and reference. |
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