Polyhydroxybutyrate (PHB)

Alternative and trade names
Biocycle®, Biomer®

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Description

It can be processed as classic thermoplasts. The key featurers are:

Biodegradable

Waterproof

Small tendency to creep

Free from even traces of catalysts

Highly crystalline (60 to 70%)

Excellent resistance to solvents

This material data has been provided by M-Base.

"Typical" values were obtained via a literature search. "Predicted" values were imputed via artificial intelligence technology. While we have placed significant efforts in ensuring data accuracy, "typical" and "predicted" data should be considered indicative and verified by appropriate material testing. Please do contact us if additional information on the the predicted data method is required.
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

Property	Value
Density	1.2 - 1.3 g/cm³ Show Material materials with Density of 1.2 - 1.3 g/cm³

Mechanical

Property	Value	Comment
Elastic modulus	1.0 - 2.0 GPa Show Material materials with Elastic modulus of 1.0 - 2.0 GPa
Elongation	2.0 - 15.0 % Show Material materials with Elongation of 2.0 - 15.0 %
Impact strength, Charpy notched	2.0 - 5.0 kJ/m² Show Material materials with Impact strength, Charpy notched of 2.0 - 5.0 kJ/m²
Impact strength, Charpy unnotched	21 kJ/m² Show Material materials with Impact strength, Charpy unnotched of 21 kJ/m²
Tensile strength	18.0 - 38.0 MPa Show Material materials with Tensile strength of 18.0 - 38.0 MPa	at 2-15% strain

Thermal

Property	Value
Melting point	168.0 - 173.0 °C Show Material materials with Melting point of 168.0 - 173.0 °C
Specific heat capacity	1280.0 - 1290.0 J/(kg·K) Show Material materials with Specific heat capacity of 1280.0 - 1290.0 J/(kg·K)
Flammability	UL 94 HB

Electrical

Property	Value
Dielectric constant	3 [-] Show Material materials with Dielectric constant of 3 [-]
Electrical resistivity	100000000000000 Ω·m Show Material materials with Electrical resistivity of 100000000000000 Ω·m

Optical

Property	Value
Transparency	no

Technological properties

Property

Application areas

Food packaging

Processing methods

Injection molding, extrusion, thermoforming

Polyhydroxybutyrate (PHB)

Description

Ashby charts

Applications

Suggested reading

Properties