Introduction
Sinopec has successfully trialed a PBST biodegradable mulch film in Wusu City, Xinjiang, addressing the issue of mulch film residue in cotton fields. This innovation aligns with sustainable agricultural practices.
Background
Xinjiang, a major cotton-producing region in China, traditionally uses PE mulch film for moisture retention and temperature control. However, PE film is difficult to degrade naturally, leading to residue issues.
PBST Advantages
PBST mulch film offers superior UV resistance and water vapor barrier properties compared to other biodegradable materials. It fully degrades into water, carbon dioxide, and minerals within 1 to 3 years, depending on the region and crop.
Implementation
In March, Sinopec launched the world's first 60,000 tons/year PBST industrial production plant in Hainan Refining. By April, a large-scale PBST mulch film test covered over 10,000 mu in Xinjiang's main cotton production areas, including Wusu City and Huyanghe City.
