Study of Factors Affecting UV-Induced Photo-Degradation in Different Types of Polyethylene Sheets.

ABSTRACT: Enhancing the degradability of polyethylene plastics could provide a potential solution to the overwhelming crisis of plastic waste. Conventional studies have focused on the degradation of polyethylene thin films. This study investigated UV-induced photo-degradation according to ASTM D5208-14 in polyethylene sheets with thicknesses ranging from 0.4 to 1.2 mm. The impacts of sample thickness, metal pro-oxidants, polyethylene resin types and foaming were explored through the characterization of the carbonyl index, molecular weight, tensile properties and crystallinity. As pro-oxidants, single iron or manganese stearate demonstrated a concentration-dependent trend in accelerating the photo-degradation of polyethylene sheets. The thickness, foaming and resin type-such as low-density polyethyle

SUBMITTER: Du B 

PROVIDER: S-EPMC11478657 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature