Polytrimethylene Terephthalate (PTT)

Alternative and trade names
Sorona®
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Description

It is an unreinforced biobased polytrimethylene terephthalate resin.

This material data has been provided by M-Base.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

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Properties

General

PropertyValue

Density

1.32 - 1.33 g/cm³

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Mechanical

PropertyValueComment

Elastic modulus

2.4 - 2.55 GPa

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Elongation

15 %

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Impact strength, Charpy notched

4.0 - 5.0 kJ/m²

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Tensile strength

60.0 - 61.0 MPa

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at 5.5-10% strain

Thermal

PropertyValue

Melting point

228 °C

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Specific heat capacity

1250 J/(kg·K)

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Thermal conductivity

0.2 W/(m·K)

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Flammability

UL 94 HB

Optical

PropertyValue

Transparency

no

Technological properties

Property
Application areas

carpet fibres

Processing methods

Injection molding, melt spin processes, extrusion