Commodity Plastics
PET Fiber Grade — Polyethylene Terephthalate for Fiber Applications
PET fiber grades are spun into filaments for textiles, offering good tensile strength, abrasion resistance, and wrinkle recovery. They are also used in industrial applications like tire cords, ropes, and conveyor belts due to their high tenacity.
PETPolyesterTeryleneDacron
Manufacturers
3
Grades
3
Applications
4
Equivalents
2
Physical Properties
- Density
- 1.30-1.39 g/cm³
- Water Absorption (24h)
- 0.1-0.5 %
- Transparency
- Can be opaque or clear (before spinning)
- Shrinkage
- 0.5-1.5 %
Mechanical Properties
- Young's Modulus
- 2.5-4.0 GPa
- Tensile Strength
- 50-70 MPa
- Elongation at Break
- 10-50 %
- Impact Strength (Izod)
- 30-60 J/m
Thermal Properties
- Glass Transition Temperature
- 65-85 °C
- Melting Point
- 250-260 °C
- Continuous Service Temperature
- Up to 150 °C (intermittent)
- Heat Deflection Temperature
- 60-70 °C
Electrical Properties
- Dielectric Constant
- 3.0-3.2
- Volume Resistivity
- 10¹²-10¹⁴ Ω⋅cm
- Dielectric Strength
- 15-25 kV/mm
Chemical Resistance
- Acids
- Good resistance to dilute acids
- Bases
- Poor resistance to strong bases
- Solvents
- Insoluble in most solvents, but can be attacked by strong acids, bases, and chlorinated hydrocarbons
- UV Resistance
- Fair (requires stabilization)
Sustainability
- Recyclability
- Highly recyclable
- Recycling Code
- 1 (PET)
- Carbon Footprint
- Moderate
Manufacturing compatibility
Fiber spinningTextile production
Applications
Apparel textiles
Home furnishings
Ropes
Tire cords
Available grades
PET 1120 FiberPET 1122 FiberPET POY Grade