Chemours in the Semicon Manufacturing Industry
The properties of PTFE derive directly from the fully fluorinated nature of its structure.
The image on this page is a depiction of a molecular model of a short segment of a PTFE chain, 6 "backbone" carbon atoms long. The actual average polymer chain would be very long, around 100,000 "backbone" carbon atoms.
Note in this structure that the fluorine atoms completely surround the carbon atoms. The fluorine-to-carbon bonds have extremely high bond strength and protect the carbon "backbone," preventing chemical reactivity or oxidation at high temperatures.
The encircling fluorine atoms provide many of the other unusual properties of PTFE, e.g., its low coefficient of friction and non-stick properties.
Thermoplastic processing for a broader range of components
PTFE polymers, although widely used, must be processed using specialized techniques. For example, Granular PTFE in processes similar to powder metallurgy where preformed stock shapes are molded and complex shapes are machined from the moldings.
From the discovery of PTFE, Chemours began the search for melt processable fluoropolymers ... that could be melted and processed in more versatile methods such as transfer and injection molding and extrusion to allow the manufacture of a broader range of components.