May 7 2001
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.
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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