Differences between biodegradable and oxo-biodegradable bags
How biodegradable t-shirt and banana bags differ from oxo-biodegradable bags? Let's consider details about these two types of bags and their differences.
There are two types of packaging:
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Biodegradable bags made from starch
These are produced from plant-based materials and are compostable. -
Oxo-biodegradable bags
Banned in some countries, are made from synthetic polymers with an added catalyst that inhibits chemical oxidation processes and accelerates degradation into small particles.
Key Differences
How can you tell if you’re holding a truly eco-friendly bag or just synthetic plastic packaging? Oxo-biodegradable soft packaging is made from polyethylene with the addition of a super concentrate known as a masterbatch. A catalytic oxidizing additive, constituting 1-3%, significantly accelerates the degradation of plastic when exposed to oxygen and the environment. Within 2-3 years, such polyethylene breaks down into tiny fragments.
According to document TR 15351 from the European Committee for Standardization (CEN), the process of oxo-biodegradation involves simultaneous or sequential oxidation and cellular breakdown.
Physical Formulas for the Mechanism of Oxo-Biodegradable Additives
The processes involved in the action of oxo-biodegradable additives can be described using formulas that reflect the key stages: photodegradation, thermal degradation, oxidation, and biodegradation.
These formulas provide a physical description of the processes involved in the degradation of oxo-biodegradable plastics.
