Case History: Determining contamination in extruded granules
Category: LABORATORY
Understanding your Problem: the need to determine the chemical nature of contaminants present in polyolefin granules.
Providing your Solution: the chemical nature of the contaminant (black colour inclusion) in the granule is determined via FT-IR and DSC analysis.
The IR analysis is performed on the contaminant via ATR with diamond crystal.
The analyses performed led us to the following conclusions:
- The IR spectrum compared with the thousands of spectra in our database allowed us to identify the contaminant as being a polyamide.
- The DSC thermal analysis highlighted a melting peak of around 300°C, allowing us to identify the polyamide as Nylon 4,6 (PA46)
