Fully biodegradable mulch
Fully biodegradable mulch film: a film with biodegradable properties, prepared with biodegradable materials as the main raw materials PBAT, PLA, etc., suitable for mechanical and manual laying.
The degradation process of the fully biodegradable plastic film:
The first stage: the induction period is the time period from the start of coating to the appearance of small cracks ≤ 2cm;
The second stage: the cracking period is the time when large cracks > 3cm appear;
The third stage: the large crack stage, that is, the mulch film has been split into large fragments, and cracks > 5cm appear, or some cracks merge to form fragments;
The fourth stage: during the fragmentation period, there is no large residual film on the ground, and there is still time for small fragments;
The fifth stage: the film-free period basically disappears on the surface.