Proshui 10pcs 20cm 24cm 26cm 28cm 30cm customized die casting aluminum cooking pot set

The history of nonstick pans and the coating materials used in them dates back to World War II. The earliest non-stick material was polytetrafluoroethylene (PTFE), now known as Teflon, which was discovered in 1938 by DuPont engineer Roy Plunkett. At that time, he was trying to make a new chlorofluorocarbon refrigerant, but accidentally discovered that tetrafluoroethylene had polymerized in a high-pressure storage container to generate a new substance. This new substance has a high degree of corrosion resistance. Most strong acids and alkalis (including aqua regia and fluorantibonic acid), strong oxidants and reducing agents cannot resist it. Therefore, Teflon has another nickname. ——The King of Plastics.

However, what really brings Teflon into the field of cookware is its other two properties: ultra-low coefficient of friction and surface energy. Teflon's friction coefficient is the smallest among all plastics, and its surface energy is also the lowest among all solid materials. These properties make it difficult for other substances to adhere to its surface. With these two absolute advantages, Teflon occupies most of the market for non-stick coatings. In recent years, in addition to Teflon, other types of non-stick coatings have also been developed. Japan's Dakin fluorine coating, the United States' Whitford coating and ceramic coatings have gradually been accepted by the market. However, Teflon still occupies the main position in the non-stick pan market due to its excellent performance and high cost performance.