Material Resins

Polylactic acid(PLA)

Poly(lactic acid) or polylactic acid or polylactide (PLA) is a biodegradable and bioactive thermoplastic aliphatic polyester derived from renewable resources, such as corn starch (in the United States and Canada), cassava roots, chips or starch (mostly in Asia), or sugarcane (in the rest of the world). In 2010, PLA had the second highest consumption volume of any bioplastic of the world.

The name “polylactic acid” does not comply with IUPAC standard nomenclature, and is potentially ambiguous or confusing, because PLA is not a polyacid (polyelectrolyte), but rather a polyester.


From Corn to Plastic

Our PLA takes annually renewable resources – corn, cassava and other plants as raw material. After fermentation by microorganisms, lactic acid will be extracted, then PLA will be produced through a process of refining, dehydration polymerization, high temperature pyrolysis and final polymerization. PLA has excellent biodegradable property. After disposal, within one year, it can be degraded into carbon dioxide and water by microorganisms in the soil, and do no harm to our environment. PLA is a kind of aliphatic polyester with basic characteristics of general micromolecule materials. PLA has good mechanical properties, low shrinkage, and is competent to the application of most synthetic plastics, also it’s widely used in the production of package materials, disposable tableware, household electrical appliance shell, fiber, 3D supplies etc.

BIO-Based Plastic

What is bio-based plastic

PSM, our proprietary bioplastic resins, constitutes an alternative to traditional petroleum-based plastics in a wide range of applications. bio-based resins and  biodegradable resins, in a variety of commercial grades including blown film grade, thermoforming grade, injection grade and foaming grade. PSMÒ bio-based resin replaces petroleum-based
plastics with renewable natural polymers such as modified plant starch to reduce use of non-renewable fossil resources and pollution while achieving comparable performance and applications with competitive pricing levels.  PSMÒ biodegradable resin uses renewable natural polymers and other biodegradable polymers and can be fully biodegradable and compostable.

Life cycle of Bio-based plastic