The Role of Polyethylene Wax on the Thermal Conductivity of Transparent Ultradrawn Polyethylene Films.

ABSTRACT: Transparency and thermal conductivity of ultradrawn, ultrahigh-molecular-weight polyethylene films containing different contents of low-molecular-weight polyethylene wax (PE_wax) are explored from experimental and theoretical viewpoints. It is shown that the addition of PE_wax decreases light scattering in all directions, resulting from a reduction of defects while having little effect on crystallinity or chain orientation of ultradrawn films. In general, upon the addition of PE_wax, the thermal conductivity of ultradrawn films increases with the highest conductivity being 47 (W m^-1 K^-1) and subsequently decreases at higher concentrations. The thermal conductivity also depends on draw ratio and number-average molecular weight (Mn) of the

SUBMITTER: Pan X 

PROVIDER: S-EPMC7366500 | biostudies-literature | 2020 Jul

REPOSITORIES: biostudies-literature