8: Can PEEK be used in high-stress applications?
All materials have their limitations but generally, PEEK, being regarded as one of the highest performing thermoplastics can indeed tolerate stresses higher than other polymers can. Due to its excellent fatigue resistance, PEEK is especially suited to applications where cyclic, repeated stresses are encountered.
9: What is the impact resistance of PEEK?
That depends upon how one measures impact resistance! Below its Tg of 143°C, PEEK is a glassy polymer but is one of the tougher glassy polymers.
10: Can PEEK be recycled?
As a thermoplastic, parts, components or scrap PEEK can be readily chopped or ground, remelted and reprocessed – extruded or moulded for example – into something new. In our laboratories, we have successfully reground, remoulded and retested PEEK several times with no loss of strength detected. In addition, as a valuable material, there are many companies which specialize in recovering, recycling and reprocessing PEEK.
For over 40 years, VICTREX™ PEEK products have proven their performance in very demanding environments. Today, the Victrex portfolio includes PEEK resins, powders and compounds as well as forms and parts such as filaments, film, rods, sheets, UD-tapes or composite plates in selected areas.
About the author
John Grasmeder, Chief scientist at Victrex
Dr John Grasmeder has over 25 years’ experience in the polymer industry, in R&D, commercial and business leadership positions at ICI, BASF, Hoechst and Shell joint ventures in both the UK and Germany. He has been with Victrex since 2005 and was Technical Director from 2010. He became Chief Scientist in 2016.
LinkedIn