PHA Overview - Angelyeast
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PHA biomaterials is a generous gift from nature


Product overview

PHA (Polyhydroxyalkanoates) is a polymer biomaterial found in microbial cells such as bacterial cells (similar to bacterial fat).PHA is not only the product of bacteria when the growth conditions are unbalanced, but also the carbon source and energy storage substance in microorganisms.PHA is a polymer consisting of 100-3000 identical or different hydroxyl fatty acid monomers, most of which are 3-hydroxyl fatty acids with chain lengths of 3-14 carbon atoms, and side chains are highly variable aromatic or aliphatic groups.

The latest research shows that there are more than 150 kinds of PHA monomers, which constitute a huge polymer family.The rich and varied material properties and environmentally friendly degradability make it one of the polymers that replace traditional petrochemical plastic products.


PHA Natural Low Carbon Cycle Concept Animation


At present, a total of four types of PHA have been industrialization, including polyhydroxybutyrate (PHB), 3-hydroxybutyrate 3-hydroxyvalerate copolyester (PHBV), 3-hydroxybutyrate 3-hydroxycaproate copolyester (PHBHHx) and 3-hydroxybutyrate 4-hydroxybutyrate copolyester (P34HB), etc., which have their own advantages in practical applications.

PHA product performance can also be compared with other degradable materials

Complementary to enhance material properties

Product brand


PB3000GPB3420G

Product characteristics

Good rigidity

Good barrier

Good heat resistance

The strength is adjustable

The toughness is adjustable

Good heat resistance

Excellent barrier property

Application recommendation

Extrusion molding

3D printing molding

Injection molding

Thermoforming

Casting forming

Blow molding

Blister molding

Suitable for blending modification of PLA, PBAT, PBS etc


PHA Performance

Metrics(Typical Values)Phamily PHAComparison
PV3000GPB3000GPB3430GPLAPBATPBS
Density(g/cm3)1.251.251.231.261.231.26
Melting Point(℃)175175170166115114
Glass Transition Temp.(℃)00-960-30-32
Heat Deflection Temp.(℃)13013060565089
Tensile Strength (Mpa)303212601940
Tenslle Strength(Mpa)1900-24002200-27004003630110650
Izod Impact Strength (23℃) (KJ/m")2151145
Nominai Tensile Strain at Break(%) -31006750400
Water Vapor Transmission Rate (0.1mm Thick](g/m²*24h)441040 - -
Oxygen Transmission Rate (0.1mm Thick](ml/m*24h)6620Surpasses - -

PHA products have good compatiblity and can be blended with each other with adjustable properties




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