1. The History of Polytetrafluoroethylene: Discovery and Development
2. Plunkett R.J.(Inventor) (1939).Tetrafluoroethylene polymers. Patent US2230654 Registered 1 July 1939 Published 4 February 1941 Kinetic Chemicals Inc.
3. Behaviour of CaSO 4 : by embedded teflon discs at high annealing temperatures;Lakshmanan A.R.;Radiat. Meas.,1998
4. Lakshmanan A.andChakraborty S.K.(2015).Recycling of Polytetrafluoroethylene (PTFE) Scrap Materials. Sintering Techniques of Materials Arunachalam Lakshmanan IntechOpen.https://doi.org/10.5772/59599.https://www.intechopen.com/books/sintering‐techniques‐of‐materials/recycling‐of‐polytetrafluoroethylene‐ptfe‐scrap‐materials(accessed 17 March 2022).
5. https://www.pro‐kunststoff.de/fachwissen/recycling‐von‐fluorpolymeren.html(accessed December 2021).