Mechanical Properties of Metallocene Linear Low-Density Polyethylene Mulch Films Correlate with Ultraviolet Irradiation and Film Thickness

Mulching technology has created a major problem of agricultural plastic pollution. This is because the mulch severely degraded by UV (ultraviolet) irradiation and mechanical properties deteriorate, which makes recycling or manual difficult. study was conducted on m-LLDPE (metallocene linear low-density polyethylene) films. The difference in specimens TD (transverse direction) PD (parallel investigated, changes after were compared. Finally, an initial property evaluation model developed to adapt different recovery machines crop agronomic requirements. results suggest that films strongly influenced film thickness, also showed directional differences tensile tear properties. After irradiation, enhanced short period time, but overall trend non-linear decay gradually slowed down with time.