Additives for Oxo-biodegradable Plastics
With increasing public concern over plastic waste accumulation in recent years, the demand for biodegradable plastics is mounting. The plastics industry has tried various approaches to develop biodegradable plastics that can perform in the same way as conventional plastics. EPI’s oxo-biodegradable additive, TDPA®, is the most practical and economical product that makes plastics biodegrade relatively quickly in different disposal environment.
TDPA®, when added to PE, PP and PS resins, causes the plastic to degrade at a controlled rate. The degradation is triggered by exposure to ultraviolet light (sunlight), elevated temperatures or mechanical stress. The shelf life and service life of degradable and biodegradable plastic products incorporating TDPA® can be customized based on customer requirements ranging from a few months to years depending on the type and amount of TDPA® added to the plastic resin. Subsequent to the initial degradation, products made with polyethylene (such as grocery, shopping and garbage bags) are biodegradable.
Plastics incorporating TDPA® is processed, performs and is visually indistinguishable from conventional non-degradable plastic materials. They have similar physical properties as regular products prior to the onset of degradation. They are cost-competitive. They are also compatible with existing recycling operations and can be safely co-mingled with conventional plastic inputs prior to the onset of degradation.
TDPA® products are food contact compliant and meet applicable US, Canadian and European standards. Composts made from plastics incorporating TDPA® are found to have no toxic effect on sensitive plant or animal life.