Polyhydroxyalkaonate Biopolymer (PHA) Granule

Alternative and trade names
Polyhydroxyalkaonate Biopolymer (PHA) Granule


PHA is a melt-processable semi-crystalline thermoplastic made by biological fermentation from renewable carbohydrate feedstocks. Although quite stable under everyday conditions they degrade slowly in the body and when composted or in landfill sites.



Density ρ

1.24 g/cm³ at 20 °C

ASTM D-792

Melt mass-flow rate MFR

3 g/10min at 170 °C

ASTM D-1238 (2160g)


Elongation A

15 % at 20 °C

ASTM D-638

Flexural modulus Ebend

1.2 GPa at 20 °C

ASTM D-790

Flexural strength σbend

40 MPa at 20 °C

Impact strength, Izod notched IIzod,not

7 kJ/m² at 20 °C

ASTM D-256

Tensile strength Rm

25 MPa at 20 °C

ASTM D-638


Melting point Tm

140 - 160 °C


Vicat softening temperature Tsoft

100 °C

ASTM D-648 (Vicat A/120)

This material data has been provided by Goodfellow.

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.