Oxidation: The plastic contains additives that accelerate the process of oxidation. This means that when exposed to oxygen in the environment, the plastic will start to degrade.
Biodegradation: The oxidation process weakens the plastic structure, making it more susceptible to attack by microorganisms. These microorganisms then break down the plastic into smaller molecules, eventually turning it into compost.
Key Differences from Biodegradable Plastics:
* Biodegradable plastics require specific conditions (like composting facilities) to break down.
* Oxo-biodegradable plastics break down in a wider range of environments, including landfills.
Controversy:
Oxo-biodegradable plastics have been criticized for several reasons:
* Environmental Concerns: Some argue that they may not fully decompose in landfills and can create microplastics that pollute the environment.
* Misleading Claims: The term "biodegradable" can be misleading, as the breakdown process might not be complete or might take longer than claimed.
* Alternatives: There are other, more sustainable alternatives to conventional plastic, like compostable bioplastics, that are considered more reliable.
Overall:
While oxo-biodegradable plastics might break down faster than traditional plastics, they come with their own set of concerns. It's crucial to consider the broader environmental impact and to choose alternatives that are more environmentally friendly.
