Abstract:
A composition for manufacturing a crosslinked ethylene tetrafluoroethylene (ETFE) copolymer with enhanced abrasion resistance and heat resistance is provided, the composition including ETFE, about 0.1-10% w/w of a metal oxide that effectively scavenges high levels of fluoride ions; and a crosslinking agent. Methods of using and making the composition are also provided.
Abstract:
Provided is a tetrafluoroethylene/hexafluoropropylene copolymer which is less likely to form a lump, or is less likely to form a large lump even if a lump is formed, during the formation of an electric wire. The tetrafluoroethylene/hexafluoropropylene copolymer has a melt flow rate measured at 372°C of 35.0 to 45.0 g/10 minutes and a swell of -8.0% to 5.0%, the sum of the numbers of -CF 2 H groups and unstable end groups being 120 or less per 1 × 10 6 carbon atoms.
Abstract:
A foam electric wire (15) according to the present invention can be used favorably in a variety of electric wire applications because it provides a high propagation velocity and a small transmission loss and minimizes the problems that result from outgassing and defoaming. Examples of applications include plenum twisted pair cables, coaxial cables for CATV, cables for HDMI, coaxial cables for antenna wires in mobile communications, coaxial cables for medical applications, coaxial cables for security, and coaxial cables for broadband applications. The above mentioned objective can be achieved with a foam electric wire (15), comprising a conductor (11) and a plurality of coating layers (12, 13, 14) that coat the conductor (11) and consist of perfluoro resin. At least one layer of the plurality of coating layers (12, 13, 14) is an unexpanded layer.