E-CTFE

Ethylene carbonate, 10 640, 665 in lithium cells, 3 459 molecular formula, 6 305t physical properties, 6 306t transesterification of, 13 651-652 Ethylene-carbon monoxide (ethylene-CO) copolymers, 5 9 10 197 Ethylene chlorohydrin process, 10 640 Ethylene-chlorotrifluoroethylene (E-CTFE) alternating copolymer (ECTFE), 15 248... [Pg.334]

Screening tests were conducted on potential construction materials. The candidate materials evaluated included the following polytetrafluoroethylene (PTFE, TFE), fluorinated ethylene-propylene copolymer (FEP), perfluoroalkoxy-alkanes (PFA), ethylene-tetrafluoroethylene copolymer (ETFE), ethylene-chlorotrifluoroethylene copolymer (E-CTFE), poly vinylidene fluoride (PVDF), polypropylene (PP), and polyvinyl chloride (PVC). These materials were chosen based on cost, availability, and information from manufacturers on compatibility with acid solutions. [Pg.317]

The durability of E-CTFE is questionable based on these test results. Embrittlement of the E-CTFE coupon at elevated temperatures was severe however, additional changes in hardness or physical appearance were not observed. The Increase in hardness of the PVDF coupons at both ambient and elevated temperatures (Table 4) is relatively insignificant in comparison with the uncertainty associated with the hardness measurements. Therefore, there is no clear evidence that PVDF is Inadequate for mixed-acid streams. The PTFE, ETFE, PFA, and FEP materials appear to be resistant to the corrosive acids used in the tests. [Pg.317]

Ethylene-chlorotrifluoroethylene E-CTFE Halar E-CTFE (Allied... [Pg.370]

Ethylene-Chloro- trifluoroethylene copolymer E-CTFE 1.68 VO 60 — Fair <0.02... [Pg.76]

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]

The four modifiers are Halar [66], SM-1 [67], SM-2 [68], and SM-3 [69]. Halar-modified diaphragms are called HAPP diaphragms (i.e.. Hooker Asbestos Plus Polymer) [70]. These contain about 5% of a predominantly alternating E-CTFE copolymer. The commercial resin melts at about 245°C and contains 82% alternating units, 8% ethylene blocks, and 10% chlorotrifluoroethylene blocks [71]. SM-1 is an extruded PTFE fiber... [Pg.292]

Ethylene chlorotrifluoroethylene copolymer (ECTFE, E/CTFE) n. A fluoroplastic with good mechanical, thermal, electrical, processing, and resistance properties. [Pg.372]

These include elastomeric fabrics, high temperature webs, such as those based on ethylene/chlorotrifluoroethylene copolymers (E-CTFE), water soluble webs based on polyvinylalcohol (PVOH) and others [5],... [Pg.420]

Many high-performance polymer fibres are used in filter media to meet various specific requirements in diverse filtration applications. Filters made from fluoropol-ymer (Polytetrafluoroethylene (PTFE), Polyvinylidene fluoride (PVDF), and Per-fluoroalkoxy alkane (PFA)) fibres, and membranes have inherent, chemical-resistant, and flame-retardant properties, and they are widely employed to filter aggressive chemicals and acids in the manufacture of wafers and microchips in the microelectronics industry. Ethylene ChloroTriFluoroEthylene (E-CTFE) melt blown fabrics have a unique ability to coalesce difficult liquids and can withstand the piranha effect in filtering ozone enriched ultrapure water. Polyphenylene sulfide (PPS) fibres are also chemical resistant, stand high temperature, and are suitable for making baghouse filters. Eilter media made from other high-performance polymer fibres, such as polyamide-imide, polyetherimide (PEI), Polyimide P84 fibre,polyetheretherke-tone, and liquid crystal polymers also appear in the filtration and separation market. [Pg.278]

HOPE pp PVDF E-CTFE FRP rw EPDM PRENE stain %... [Pg.848]

Description Bromine Waler+ Butadiene Butane % Cone. LOPE/ HOPE xlpe pp PVDF E-CTFE FRP PVC EPDM NEO- PRENE VITON 316 stain Less s s Nylon ... [Pg.849]

PVDF—Polyvinylidene Fluoride (also known as Kynar, a registered trademark of Penwalt Corp.) E-CTFE—Ethyfene-Chlorotrifluoroethylene (also known as Halar, a registered trademark of Allied Chemical Corp.)... [Pg.853]

D3275 E-CTFE-Fluoroplastic Molding, Extrusion, and Coating... [Pg.555]

CPVC, FEP, ETFE, PFA, E/CTFE, PVDF), also flame protected... [Pg.34]

The commercially important fluorocarbon polymers are poly(tetrafluoroethylene) (PTFE), poly(tetrafluoroethylene-co-hexafluoropropylene) (FEP), poly[tetrafluoroethylene-co-(perfluoroaJkylvinyl ether)] (PFA), and amorphous fluoropolymer (AF), typically copolymers of tetrafluoro-ethylene and fluorinated dioxole. The second group of fluoropolymers includes modified poly(tetrafluoroethylene-co-ethylene) (ETFE), poly(vinylidene fluoride) (PVDF) (sometimes referred to as PVF2), and copolymers of vinylidene fluoride, poly(chlorotrifluoroethylene) (PCTFE), poly(chlorotrifluorethylene-co-ethylene) (E/CTFE) and poly(vinyl fluoride) PVF. [Pg.735]

Elastomeric copolymer from ethylene oxide and epichlorohydrin, chloromethy-loxirane (ANSI/ASTM) see also CHC Poly(ethylene-co-chlorotrifluoroethylene) see also E-CTFE... [Pg.2252]

Ethylene-Chlorotrifluoroethylene Copolymer (E-CTFE) Polychlorotrifluoroethylene (PCTFE)... [Pg.237]

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