Meaning
Analytical instruments decompose solid polymer samples into volatile fragments for identification. The use of pyrolysis gc ms testing allows chemists to determine the composition of complex blends or unknown contaminants. A small piece of the plastic is heated rapidly in an inert atmosphere to break the polymer chains.
The resulting gases are separated and identified by a mass spectrometer.
High Heat
Thermal energy breaks the chemical bonds within the polymer backbone.
Each Pattern
Resins produce unique fragments when they break apart. Laboratories use pyrolysis gc ms testing to match these patterns against a library of known materials. This technique can identify the type of polymer and the presence of flame retardants or plasticizers.
It is a powerful tool for reverse engineering a competitor’s product or identifying the cause of a part failure.
Tiny Speck
Foreign material can ruin the appearance or strength of a moulded part. By applying pyrolysis gc ms testing to the defect, the lab can determine if the problem came from a degraded resin or an outside source. This information helps the production team find the source of the pollution and clean the equipment.
Knowing the exact nature of the contaminant prevents the waste of entire batches of material.