Degradable Plastic is an oil based plastic
containing a chemical additive that undergoes significant change
in its chemical structure causing large polymer molecules to break
down into smaller molecules or particles.
Biodegradable Plastic is a degradable plastic in which the degradation
results from the action of naturally occurring microorganisms such
as bacteria, fungi, and/or algae.
There are two primary differences between ‘degradable’ and ‘biodegradable’.
Firstly, heat, moisture and/or UV exposure most often causes the
degradation of a degradable product, whereas microorgganisms degrade
a biodegradable product. Secondly, degradable products tend to take
much longer to break down into carbon dioxide, biomass and water.
When degradable plastics break down into smaller molecules, eventually
they will be small enough to be consumed by microorganisms and
so biodegradation occurs. In essence then, all degradable films
will eventually biodegrade but at different speeds.
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