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Teflon Cable

Teflon

Teflon, full name Polytetrafluoroethene and referred to as PTFE, is a synthetic fluoropolymer of tetrafluoroethylene that has numerous applications. It has acid, alkali resistance characteristics of various organic solvents, almost insoluble in all solvents. Meanwhile, Teflon is a thermoplastic polymer, which is a white solid at room temperature, with a melting point up to 600 K (327°C / 620 °F). It could maintain a high strength, toughness and self-lubrication properties at low temperature down to 5 K (-268 °C / -450 °F), and good flexibility at temperatures above 194 K (-79 °C / -110 °F).

Chemical Properties

  • Corrosion resistance: able to withstand the effect of various strong acids (including fluoroantimonic acid, aqua regia), strong bases, strong oxidants, reducing agents and organic solvents, except molten alkali metals, fluoride medium, and sodium hydroxide higher than 573 K (300 °C / 572 °F).
  • Insulation: resistivity up to 1016 ohm.m, small dielectric loss, high breakdown voltage, unaffected by the environment and frequency.
  • Temperature resistance: little effect on the temperature change from 83~533 K (-190~260 °C / -310~500 °F).
  • Self-lubrication: the ideal oil-free material with minimal friction coefficient among plastic.
  • Surface non-adhesive: having a minimal surface energy of solid materials, and be not adhered by others.
  • Atmospheric aging resistance, radiation resistance and low permeability: Surface and properties remain unchanged under long-term exposure to the atmosphere.
  • Incombustibility: limiting oxygen index (LOI) > 90.

Physical Properties

Property Value
Density 2200 kg/m3
Melting point 600 K / 327 °C / 620 °F
Thermal expansion 112–125·10−6 K−1
Thermal diffusivity 0.124 mm2/s
Young's modulus 0.5 GPa
Yield strength 23 MPa
Bulk resistivity 1016 Ω·m
Coefficient of friction 0.05–0.10
Dielectric constant ε = 2.1, tan(δ) < 5(-4)
Dielectric constant (60 Hz) ε = 2.1, tan(δ) < 2(-4)
Dielectric strength (1 MHz) 60 MV/m

Silver-Coated OFC Wire

Silver-Coated OFC (Oxygen Free Copper) wire combines the characteristics of copper and sliver. It has good conductivity, with shiny surface and high corrosion resistance. It has following characteristics:

  • High conductivity
  • Improved heat resistance
  • Shiny surface
  • High frequency
  • High temperature resistance
  • Corrosion resistance

Application

Teflon cable is widely used in all kinds of high temperature, low temperature, high pressure, oil, corrosion and other harsh environments.

  • Wiring in steamships, aeroplanes and computers.
  • Connecting in the transformers, instruments and automatic devices in the industries as metallurgy, petroleum, chemical, power station.
  • High temperature compensating leads in electronic industry.
  • Inside wires in house appliances such as air conditioner, microwave oven, electronic sterilizer, electric heater, electric oven, electric cooker, lamps and lanterns.

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