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TG 209 F3 Tarsus - Thermo-Microbalance

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For a thermobalance it is always a challenge to test carbon black-filled or oxidation-sensitive polymer compounds correctly regarding quantity.
This is no problem with the new TG 209 F3 Tarsus.

The plot shows a polyethylene filled with 1.8 % carbon black. After switching over from inert gas atmosphere (nitrogen) to oxidizing atmosphere (synthetic air) at 850°C the added carbon black burns to carbon dioxide. There is no residue.

With the help of the c-DTA® calculated DTA signal, endothermal and exothermal effects can be identified. In the following graph, the 2-step decomposition of a polyamide (PA) sample in a nitrogen atmosphere is presented. The melting peak, determined by c-DTA® to be at 226°C, identifies the sample as PA6.

It should be kept in mind when processing this material that the first mass loss step occurs already during melting; this is apparently the release of processing additives.

Please also visit the following product pages:

DSC 200 F3 Maia®

DSC 204 F1 Phoenix®

TG 209 F1 Iris®

STA 409 PC Luxx®

DMA 242 C