Identification of Polymers by Means of the DSC Database
Netzsch Gerätebau and Kunststoff-Institut Lüdenscheid
Differential scanning calorimetry (DSC) is one of the most frequently used methods of thermal analysis. It is used to measure the amount of heat released or absorbed during heating and cooling processes or in an isothermal process. With this technique, it is possible to identify unknown materials. To date, assignment of thermal data to a specific material usually took place on the basis of a comparison with literature data, which is time-consuming, error-prone and not always unambiguous, because, for instance, polyamide 6 and polyamide 6.10 have similar melting points and enthalpies. Comparison of the DSC curves, however, permits unambiguous identification of the polymer type.
The Kunststoff-Institut für die mittelständische Wirtschaft NRW GmbH, Lüdenscheid, Germany, has developed a polymer database that allows simpler and more differentiated comparison of measured DSC curves against reference curves. It can be incorporated into the "Identify" curve recognition system of the Proteus software from Netzsch Gerätebau GmbH, Selb, Germany. The software automatically compares the shape of the curve against DSC database references. Currently, the database contains 600 data sets from different material samples for about 120 different polymer types and blends. Updates and expansions of the database are planned.
Hall 10, booth G42 (Netzsch)
Hall 6, booth D76 (Kunststoff- Institut Lüdenscheid)
Patents encourage innovation: Stay on the ball with the latest innovations in the plastics industry in our patents section.
Would you like to subscribe to our Newsletters on plastics technology and profit from the latest information?
You know the trade name but want to know the material manufacturer, type of polymer and delivery form? Search here!