By Hilda Kafui Nuworku [3min read] Non-stick is a surface engineered to reduce the ability of other materials to stick to it. Non-stick is often used to refer to surfaces coated with Polytetrafluroethylene (PTFE), but in the 21st century other coatings have been marked as non-stick, such as anodized aluminum, ceramics, cast iron, carbon steel and many others. Cast iron, carbon steel, cast aluminium and steel cookware may be seasoned by applying fat to the surface and heating to polymerize the fat. This produces a dry hard smooth, hydrophobic coating, which is non-stick when food is in it. Polytetrafluroethylene is a synthetic fluoropolymer or tetrafluoroethylene that has numerous applications. Its well known brand is Teflon® , by Chemours, a polymer company. PTFE molecular structure. PC: susbtech.com Properties of PTFE: It's a fluorocarbon solid, with a high molecular weight. It's hydrophobic due to the high electronegativity of Fluorine. It ...
