The full name of PBAT in Chinese is "poly (adipic acid)/poly (butylene terephthalate)", which is a kind of "degradable plastic" formed by polymerizing petrochemical monomers through chemical synthesis.
PBAT is also a biodegradable plastic, but it comes from different sources.
According to the source of raw materials of biodegradable plastics, biodegradable plastics can be divided into two categories: bio-based and petrochemical-based. PBAT is a biodegradable plastic based on petrochemical industry.
The results of biodegradation experiments show that PBAT can be completely degraded for 5 months under normal climate conditions.
If PBAT is in seawater, there are microorganisms in seawater that can adapt to high salt environment, and it can be completely degraded in about 30-60 days at 25℃ 3℃.
However, no matter what kind of biodegradable plastic, it needs certain environmental conditions to degrade. If it is in an environment without degradation conditions, especially under the living conditions of microorganisms, its degradation will be very slow.
(Don't be too nervous)
PBAT biodegradable plastics can be biodegraded under composting conditions, other conditions, such as anaerobic digesters, and natural environments, such as soil and seawater.
However, the specific degradation situation and degradation time of PBAT are related to its specific chemical structure, product formula and degradation environmental conditions.
Therefore, the degradation time of PBAT biodegradable garbage bags should be combined with the actual situation. It is recommended to consult specific manufacturers, after all, only the manufacturers know the product formula.