Ethylene-Chlorotrifluoroethylene - ECTFE

Ethylene-Chlorotrifluoroethylene (ECTFE) is a costly, semi-crystalline, melt processable, whitish semi-opaque thermoplastic with good barrier properties and chemical resistance.

In addition, the thermoplastic has good high frequency electrical characteristics and good creep and tensile properties.

Polymer Type

Thermoplastic

Advantages

Advantages of Ethylene-Chlorotrifluoroethylene include:

  • Melt processable
  • Good high frequency electrical characteristics.
  • Inherent fire retardance.
  • Good creep and tensile properties (comparable to Nylon 6/6).
  • Good radiation and wear resistance.

Disadvantages

Ethylene-Chlorotrifluoroethylene can be extremely expensive and can be attacked by esters & aromatic hydrocarbons.

Applications

Applications of Ethylene-Chlorotrifluoroethylene (ECTFE) include cable covering, barrier films, release/vacuum bagging films, valve and pump components, filaments for weaving into fabric, film, flexible circuitry, tubing for optical fibers, and chemically resistant linings etc.

Ethylene-Chlorotrifluoroethylene is fire retardant which makes it perfect for cable covering. Image Credit: ShutterStock/Flegere

Ethylene-Chlorotrifluoroethylene is fire retardant which makes it perfect for cable covering. Image Credit: ShutterStock/Flegere

Typical Properties

Property Value
Density (g/cm3) 1.7
Surface Hardness RR93
Tensile Strength (MPa) 30
Flexural Modulus (GPa) 1.7
Notched Izod (kJ/m) 1.06+
Linear Expansion (/°C x 10-5) 20
Elongation at Break (%) 200
Strain at Yield (%) 5
Max. Operating Temp. (°C) 130
Water Absorption (%) 0.01
Oxygen Index (%) 60
Flammability UL94 V0
Volume Resistivity (log ohm.cm) 15
Dielectric Strength (MV/m) 40
Dissipation Factor 1 kHz 0.002
Dielectric Constant 1 kHz 2.6
HDT @ 0.45 MPa (°C) 115
HDT @ 1.80 MPa (°C) 76
Material. Drying hrs @ (°C) NA
Melting Temp. Range (°C) 270 - 300
Mould Shrinkage (%) 3
Mould Temp. Range (°C) 90 - 135

Source : Abstracted from Plascams

For more information on Plascams please visit The Rubber and Plastics Research Association

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