How is teflon applied to cookware

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No one wants to wash sticky, burnt pans. Non-stick utensils have been around for 50 years now. Teflon is a unique polymer that repels most things, so the question is, how do the manufacturers get it to stick to the pans? The Teflon coating process uses sand, heat, vacuum, and some other chemicals.

Roy J. We can use two techniques to make Teflon itself stick to surfaces of items such as pots and pans. The first is "sintering," a process similar to melting, in which the Teflon is heated at a very high temperature and pressed firmly onto a surface.

When the material cools down to room temperature, however, chances are it will eventually peel away. Chemically modifying the side of the Teflon that you want to have "stick" yields better results. By bombarding it with ions in a high vacuum under an electric field, or "plasma," we can break away many of the fluorine atoms on the surface that we want to make sticky. We can then substitute other groups, such as oxygen, that adhere strongly to surfaces.

Though perhaps best known as a cookware coating, Teflon has a wide range of applications, from insulating data communications cables to repelling water and stains from clothing and upholstery.

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