Main advantages of biopolymers


Derived from natural resources or oil resources, PBS and PBAT is compostable into biomass, carbon dioxide and water (according EN13432).

Products made from Tunhe’s PBS and PBAT can be disposed of along with organic waste.

Tunhe’s PBS and PBAT have no adverse effects on the environment and is naturally compostable, without requiring a specialized composting facility.


BiobasedTunhe’s portfolio compromises a biobased PBS which is made from caster oil out of beans from the Ricinus plant.


All biodegradable polymers of Tunhe’s (biobased PBS and PBAT) have European Food Approval according EU10/2011. Therefor they are suited for food packaging applications.

Conventional processing equipment

Processing Tunhe’s biodegradable polymers does not require special equipment; they can be applied in current extrusion coating machines, blown film extruders, and injection molding machines.

Biobased PBS benefits

Applications for biobased PBS

Bio PBS TH803S Typical Property Unit Test method Result
MFR 190℃,2160g g/10min ISO 1133 4~8 16~20 25~30
Density g/cm3 ISO 1183 1.25 1.27 1.27
Melting Point ISO 11357 114 114 114
HDT B/Tff0.45 ISO 75 89 90 89
Tensile Strength MPa ISO 527 42 38 35
Elongation % ISO 527 280 270 160
Moisture %   ≤0.06 ≤0.05 ≤0.05
Shore Hardness D/15 ISO 868 70 68 66
Flexural Strength MPa ISO 178 36 34 34
Flexural Modulus % ISO 178 620 610 600
Izod Impact Strength KJ/m2 ISO 180 6 6 5.5
Max Thickness of Film μm 68

PBAT benefits

Applications for PBAT


Please contact us to discuss the possibilities.