Tetrafluoroethylene-hexafluoropropylene copolymer

Tetrafluoroethylene Copolymers. Tetrafluoroethylene-hexafluoropropylene copolymer (FEP)and tetrafluoroethylene-perfluoroalkoxyethylene (PFA) are used as dispersion coatings in the same way as PTFE, taking advantage of their low melt viscosity and low viscosity at baking temperature. [Pg.28]

S. V. Gangal, "Tetrafluoroethylene Polymers, Tetrafluoroethylene—Hexafluoropropylene Copolymers," inj. I. Kroschwitz, ed., Enjclopedia of Polymer S cience and Engineering 2nd ed., Vol. 16, John Wiley Sons, Inc., New York, 1989, pp. 601—613. [Pg.363]

D. Fluorocarbon Polymers. Four different fluorocarbons account for the bulk of the laboratory applications polytetrafluoroethylene, Teflon PTFE po-ly(chlorotrifluoroethylene), KEL-F tetrafluoroethylene-hexafluoropropylene copolymer, Teflon FEP and tetrafluoroethylene-perfluorovinyl ether copolymer, PFA. These polymers are inert with most chemicals and solvents at room temperature and exceptionally inert with oxidizing agents. They also have an exceptional resistance to temperature extremes. However, they are decomposed by liquid alkali metals, solutions of these metals in liquid ammonia, and carban-ion reagents such as butyllithium. Teflon retains some of its compliance at liquid hydrogen temperature. The maximum temperature which is recommended for continuous service is 260°C for Teflon PTFE and PFA, and about 200°C for Kel-F and Teflon FEP. [Pg.307]

There are a number of other polymers in this family including polychlorotrifluoroethylene (PCTFE), polyvinyl fluoride (PVF), polyvinylidene fluoride, ethylene chlorotrifluoroethylene (ECTFE), tetrafluoroethylene/hexafluoropropylene/vi-nylidene fluoride terpolymers, and chlorotrifluo-roethylene/vinyl ether copolymers. [Pg.4]

HUT Hutchenson, K.W., Henry s law coefficients for monomers and selected solvents in amorphous tetrafluoroethylene-hexafluoropropylene copolymers, J. Chem. Eng. Data, 48, 1028, 2003. [Pg.106]

Copolymers of tetrafluoroethylene were developed in attempts to provide materials with the general properties of PTFE and the melt process-ability of the more conventional thermoplastics. Two such copolymers are tetrafluoroethylene-hexafluoropropylene (TFE-HFP) copolymers (Teflon FEP resins by Du Pont FEP stands for fluorinated ethylene propylene) with a melting point of 290°C and tetrafluoroethylene-ethylene (ETFE) copolymers (Tefzel by Du Pont) with a melting point of 270°C. These products are melt processable. A number of other fluorine containing melt processable polymers have been introduced. [Pg.408]

E/TFE = ethylene/tetrafluoroethylene, E/CTFE = ethylene/chlorotrifluoroethylene, EPE = oxide, E/VAL = ethylene/vinyl alcohol, FEP = tetrafluoroethylene/hexafluoropropylene, FU = furan, pA = polyamide, PCTFE = polychlorotrifluoroethyl-ene, HDPE = high-density polyethylene, PF = propylene formaldehyde, PFA = perfluoro alkoxyalkane, PP = polypropylene, PTFE = polytetrafluoroethylene, PUR = polyurethane, PVC = polyvinyl chloride, PVDF = polyvinylidene fluoride, UP = unsaturated polyester, UP-GF = fiberglass-reinforced unsaturated polyester, VE-GF = fiberglass-reinforced vinyl ester, FU-GF = fiberglass-reinforced furane, EP-GF = fiberglass-reinforced ester, CR = chloroprene rubber, CSM = chlo-rosulfonyl polyethylene, FPM = vinylidene fluoride/hexafluoropropylene copolymer, HR = isobutane-isoprene rubber, NBR = nitrile-butadiene rubber, NR = natural rubber, SBR = styrene-butadiene rubber. [Pg.637]

Tetrafluoroethylene/hexafluoropropylene copolymer carbon dioxide and snUur hexaflnoride carbon dioxide and triflnoromethane triflnoromethane and snUur hexaflnoride 1999MER 1999MER 1999MER... [Pg.543]

Synonyms Ethylene/propylene copolymer, fluorinated FEP FEP resin Fluorinated ethylene/propylene resin Fluoroethylene polymer Hexafluoropropylene/tetrafluoroethylene copolymer Petfluoroethylene propylene Tetrafluoroethylene/hexafluoropropylene copolymer TFE/ HFP... [Pg.1122]

Tetrafluoroethylene/hexafluoropropylene copolymer. See Fluorinated ethylene/propylene... [Pg.1378]

The anisotropy of T, and Ti, have been little studied. The only comprehensive treatment of this has been given by McCall and co-workers,where results for tetrafluoroethylene-hexafluoropropylene copolymer fibres are presented, together with a theoretical treatment for the full orientation case. Any anisotropy in Ti was found to be minimal the anisotropy in Ti was comparable to that in Tj or the second moment, as would be expected on theoretical grounds. [Pg.240]

Atkinson, P. Fleming, R. (1976). Origin of absorption and resorption currents in the copolymer poly(hexafluoropropylene-tetrafluoroethylene). Journal Phys. D Appl. Phys., Vol.9, pp. 2027-2040... [Pg.183]

Hexafluoropropylene/tetrafluoroethylene copolymer Perfluoroethylene propylene Tetrafluoroethylene/hexafluoropropylene copolymer TFE/HFP... [Pg.1829]

Hexafluoropropylene is produced by the pyrolysis of tetrafluoro-ethylene. The copolymer of hexafluoropropylene with tetrafluoroethylene is a medium-grade thermoplast with a crystallinity of 40-50% (drawn) to 50-70 % (annealed). The copolymer has similar mechanical and chemical properties to poly(tetrafluoroethylene), but can be molded and extruded. [Pg.913]

Bhattacharga, A De A., and Bhattacharga, S. N., Preparation of polypyirole composite with acrylic acid-grafted tetrafluoroethylene-hexafluoropropylene copolymer, Synth. Metals, 65, 35-38 (1994). [Pg.37]

W. H. Tuminello, Molecular Weight Distributions of Tetrafluoroethylene-Hexafluoropropylene Copolymers Polym. Eng. Sci. 29, 645-653 (1989). [Pg.9152]

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