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peek ptfe is an engineering polymer that is similar in properties to PTFE but has much greater strength and extreme chemical resistance. It is primarily used in applications where the component must withstand high temperatures for long periods of time, such as running gears, bearings, bushings, and other drivetrain components.
Because PEK retains its strength as temperatures rise, it is typically used in applications that require cyclical loading conditions or where components must withstand high mechanical loads at very high temperatures for extended periods of time. These types of applications include running gears, bearings, and bushings in the transportation, automotive, and aerospace industries.
Compared to traditional PEEK material, the strength and other physical and mechanical properties of PEK are almost constant up to 30@C higher in temperature. This allows these components to withstand the stresses associated with cyclic loading and minimize noise, vibration and harshness (NVH).
These properties make it a good choice for many different applications that require high chemical resistance. This includes chemicals such as acid, acetone, alcohol, benzene, chlorine, ethylene oxide, formaldehyde, gasoline, glycerin, hydrogen peroxide, hydrochloric acid, iodine, methylene chloride, nitric acid, sulfuric acid, toluene, and many others.
The EDS analysis of the coatings shows that there is significant fluorine stratification in both PEEK and PEKK coatings, indicating that the coatings are not perfectly mixed during the coalescence process. This is because the PTFE particles have not been well distributed in the binder during the coatings’ manufacture, creating regions of high PTFE concentration at the surface that are intercalated with regions of low fluorine.