Polytetrafluoroethylene or PTFE is a versatile plastic polymer. Like a chameleon of the plastics world, PTFE takes on many forms. It can be found in everything from kitchenware and snow sleds to advanced fighter jets. But, what exactly is it?PTFE is a solid material created from the polymerization (the process of making polymer) stove top protector of tetrafluoroethylene or TFE (a fluorocarbon chemical). Opaque white in color, PTFE is used in many industries, including food and beverage, aerospace, and manufacturing.Independently, TFE is a gaseous and highly unstable chemical. But the aggregate effects of polymerization create a chemical chain reaction that strengthens and stabilizes its fluorine and carbon molecule bonds. This results in a carbon-based fluoropolymer, called PTFE, which has such impressive properties as:
The carbon and fluoride molecules in PTFE are so stable that they rarely change their physical properties. This allows the material to be:Chemically resistant: PTFE has inherited carbon’s ability to not react with other chemicals. This protects the material from corrosive acids, aggressive alkalis, and neutral bases.Hydrophobic: It’s non-reaction to bases also means water can’t pass through its surface, which can cause oxidation.Tolerant to extreme temperatures: PTFE can resist temperatures from sub-zero up to 327°C (621°F).
Weather-resistant: Being chemically resistant, hydrophobic, and tolerant to extreme temperatures allows it to withstand natural erosion, crumbling, and wear and tear.The friction coefficient of PTFE is so low that it’s one of the few surfaces to which even a gecko can’t stick! This property makes it ideal for slide bearings, plates, gears, and other such parts. PTFE tubing manufacturers also use this polymerized product to create roll covers that chemicals can’t adhere to.Even though it’s used in large manufacturing operations, PTFE is also commonly found in homes. It’s low-friction is most popularly found in kitchenware, especially non-stick pans. Outside of the kitchen, people take advantage of its slick property in ski shoes, sleds, flat irons, or in simple sheet lining.
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