Melt processible fluoroplastics

Ebnesajjad, S., Fluoroplastics, Vol.l, Non-Melt Processible Fluoroplastics, William Andrew Publishing, Norwich, NY, 2000, p. 36. 

PROCESSING OF MELT-PROCESSIBLE FLUOROPLASTICS 4.3.1 Melt-Processible Pereeuoropeastics... 

Ebnesajjad, S. Melt Processible Fluoroplastics The Definitive User s Guide and Data Book, Plastics Design Library. William Andrew Publishing Norwich, NY, 2002. 

Optical and Spectral Properties of Melt-processible Fluoroplastics... 

Other melt-processable fluoroplastics include ethylene-chlorotrifiuoroethylene (ECTFE) copolymer (melting point 240°C), polyvinylidene fluoride (PVDF) (melting point 170°C), and polyvinyl fluoride (PVF), which is commercially available only as film. 

Perfluoroalkoxy (PFA) resins represent another class of commercially available class of melt-processable fluoroplastics. Their general chemical structure is... 

Perfluoroalkoxy resin (PFA) n. A class of melt-processable fluoroplastics in which perfluoroalkyl side chains are cormected to the fluorocarbon backbone of the polymer through flexible oxygen linkages. 

S. Ebnesajjad, Non-melt Processible Fluoroplastics, Vol. 1, Plastics Design Library, Division of William Andrew, Inc., 2000. Handbook Series. 

The melt processible fluoroplastics are often desired due to the cost benefits of melt extrusion over paste extrusion. FEP, PEA and specially formulated melt processible perfluoroplastics are used in many of these applications however, in some of these applications, perfluoroplastics may not be the ideal choice. In cases where high cut-through resistance and better tensile properties are required, it is often desirable to employ a partially fluorinated polymer such as ETFE (ethylene-tetrafluoroethylene). ETFE is the copolymer of ethylene and TEE [16] that normally includes an additional termonomer to increase the flexibility required in commercial applications [17]. The increased physical and electronic interactions of the ETFE polymer chain are responsible for the comparatively enhanced physical properties. Additionally, the partially fluorinated polymers may be cross-linked to further improve physical properties. These benefits, however, are obtained at the expense of the unique properties of perfluoroplastics discussed in the Introduction and Overview. 

Person to discover - Hanford, WE, Roland, J R Joyce, R M Sauer, J C Ebnesajjad, S, Fluoroplastics. Vol. 2. Melt Processible Fluoroplastics, William Andrew, 2003. 

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