The method of thermogravimetric analysis offers a multitude of advantages compared to the previously used methods – and the analysis of plastics, especially elastomers, is thereby vastly improved. Thermogravimetric analysis is also a reliable tool for examining a large number of material properties in the research and development of new materials.
Are the properties of a rubber seal pivotal for the function of a component?
If this is the case, we can precisely qualify the seal in terms of its composition and properties. In order to further increase the quality of the results in the qualification of elastomers, we supplement the analysis of FT-IR spectroscopy, DSC analysis and EDX analysis of fillers with a TGA (thermogravimetric analysis). This analysis technology provides additional information and rounds off the polymer characterization. With its precise temperature control, coupled with a highly sensitive weighing unit, it offers the possibility of tracking the degradation processes of plastics and elastomers and drawing conclusions about polymer blends, admixtures or polymer damage. Furthermore, moisture and plasticizer proportions, the content of organic fillers, e.g. carbon black or carbon fibers, as well as the proportion of inorganic fillers and reinforcing materials can be determined very precisely.
Example: Determination of the material composition of an elastomer (FKM)
- Determination of the degradation behavior
- Determination of the filler and carbon black content
TG-Plot 1
Example: Determination of the filler content in a plastic (talc-filled PP)
TG-Plot 2
Example: Determining the composition of a paper
TG-Plot 3
FAQ
10–30 mg is sufficient; more for inhomogeneous material. Sample should fit into a 70–100 µl crucible.
A single measurement approx. 1–3 hours; processing including report 3–5 working days.
Dekra Automobil GmbH, Unidekstraße 5, 75015 Bretten,
with the sample accompanying form from the download area.
Yes, TGA in accordance with DIN EN ISO 11358 is part of our DAkkS-accredited scope of testing.
Proportions of plasticiser, polymer, carbon black and inorganic fillers, decomposition behaviour as well as moisture. In combination with FT-IR / MS of the split-off gases, also additive and gas identification.
Yes, if the test is performed in accordance with the standard. For statements in advertising, please state the standard and test conditions.