Plastic that biodegrades faster
Fonte: Global Cause
FUTURE OF PLASTIC Oxo-biodegradable plastic will become biodegradable much more quickly than ordinary plastic, and will then be recycled back into nature by bacteria and fungi on land or sea.
All plastics will fragment when exposed in the open environment, but the problem with conventional plastics is that their fragments will lie or float around for decades before becoming biodegradable. During that time they break down into microplastics and may attract toxins. Marine life often consume these microplastics, mistaking them for plankton, which can begin the process of toxins moving into the human food-chain.
Catalyst to degrade plastic more quickly
Oxo-biodegradable technology was therefore invented to speed up the degradation process, by adding a catalyst which promotes oxidation. The catalyst is dormant during the intended life of the product and activates on exposure to the open environment.
Oxidation reduces the molecular-weight of the polymer by dismantling the molecular structure. This is easy to prove, using the methods prescribed by international standards such as ASTM D6954, and is well-documented in the scientific literature. When the molecular weight has reduced to 5,000 Daltons or thereabouts, it is no longer a plastic and is accessible to bacteria and fungi, who will recycle it back into nature. It definitely does not just produce fragments of plastic.
Oxo-biodegradable plastic safely consumed by bacteria
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