Development of Visibly Opaque Polyolefin Sheets While Preserving Infrared-Light Transparency.

ABSTRACT: This study focused on developing pigmented linear low-density polyethylene (LLDPE) sheets while preserving their mechanical properties and infrared (IR) transparency. Six pigments-ZnO, ZnS, TiO₂, FeO yellow, FeO light brown, and FeO dark brown-were each mixed with polyethylene (PE) wax in a 1:1 ratio and blended with LLDPE at concentrations of 1, 3, and 5 wt%. Tensile strength tests showed minimal changes at lower pigment concentrations, with values near that of pure LLDPE (14 MPa), and slight reductions at 5 wt%. IR transparency tests, conducted using both direct and reflected heat sources, showed that white-pigmented sheets maintained over 85% transparency, while colored pigments exhibited slightly reduced IR transmittance, ranging from 70% to 91%. Fourier Transform Infrared S

SUBMITTER: Hoque MS 

PROVIDER: S-EPMC11857700 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature