New improved formula, filling ratio can reach 90%. In terms of degradation rate, the film made with 50% of OSEP101-3A passed the test of ASTM D5338 “Aerobic Biodegradation Test Standard for Plastic Materials under Controlled Composting Conditions”. After 180 days, the film decomposition rate reached 33.9%. At the same time, the improvement of OSEP101 formula has increased the physical properties and toughness of the product.
Environmentally-friendly 100% biodegradable masterbatch additives made from nano-grade oyster powder, PE, LLDPE, natural plant-based raw materials, and exclusive bio-degradable formula with special processing and refining technologies, targeting 4P (PE, PP, PS, PVC) plastic materials.
The product developed by adding 15% ~ 30% (max. to 50%) of OSEP101-5A mixed chain has reached the ASTMD6954-04(SPCR-141) test standard (for exposure and testing of plastics that degrade in the environment through a combination of “Oxidative degradation and Bio-degradation”).
Test and evaluation methods for oxidized biodegradable plastics
- Polymer oxidative degradation evaluation (measurement of molecular weight reduction and physical changes).
- Determination of the biodegradability of the polymer after polyoxidative degradation (biodegradability test).
- Determination of the impact of soil residues on the environment after biodegradation (environmental toxicity).