Composition and identification of polymers

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Prüfverfahren zur Polymeridentifizierung

The question of whether the “right” plastic has been processed can often only be clarified with very complex tests. To identify a polymer class (e.g. polypropylene, polyamides or polyester), 2 to 3 different tests are often necessary. The combination of tests depends on the polymer being searched for / suspected.

Since compounds contain various additives (glass fibers, talcum, carbon fibers) and additives such as flame retardants, lubricants and / or dyes in addition to the basic plastic, special tests and analyses are also required for these very different materials.

Test procedures

Melting point determination using DSC
IR spectroscopy
Density
Residue on ignition / thermogravimetry (TGA)
Glass fiber length distribution
Fracture analysis (SEM)

Specific chemical analyses can be used to identify organic and inorganic additives.

Chemical analytics

Spectroscopy (FT-IR, UVVIS, AAS/AEP, ICP, XRF etc.)
Elemental analysis
Gas chromatography (MS, pyrolysis, TD etc.)
Liquid chromatography (HPLC, LC-MS/MS, LC-DAD)
Thermal analysis (DSC, TGA,)
Molar mass distribution (GPC, SEC)

The sensitivity of the analytical methods increases considerably if the additives required for method development can also be provided.

Contact

Plastic tests

Dipl.-Ing. Ute Schwarz

Phone: + 49 3672 379 - 420

Email: kunststoffpruefung@ompg.de

Textile tests

Julia Ziegengeist

Phone: + 49 3672 379 - 312

Email: prueflabor@ompg.de

Chemical analytics

Dr. Anke Krämer

Phone: + 49 3672 379 - 256

Email: analytik@ompg.de

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Phone	+ 49 3672 379 - 0
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Funding for consulting and process support

Composition and identification of polymers

Test procedures

Chemical analytics

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