1. DuPont, Teflon PTFE Brochure, 1990.
2. J. Latte and D. Coomber, Japan Patent 42-13560, 1967.
3. Physical Constants of Fluoropolymers;Sperati,1989
4. Polytetrafluoroethylene, Handbook of Thermoplastics;Blanchet,1997
5. Synthetic Polymeric Membranes;Kesting,1985