Influence of the Addition of a Fluorinated Oligo-Polystyrene Additive on the Rheology and Hydrophobic Properties of PS Injection-Molded Parts.

ABSTRACT: The objective of this work is to understand the effect of a perfluorinated random copolymer added in a polystyrene (PS) matrix on the rheological properties during an injection molding process, as well as on the functional wettability of the final parts. A synthesized random perfluorinated copolymer, named POISE-a-20, was first physically blended with a PS matrix at a weight content of 2 wt % and processed on a lab scale using an injection molding machine. The rheological properties of the injection-molded parts were investigated using a plate-plate rheometer, and a specific behavior was observed, where the presence of POISE-a-20 led to an increase in viscosity at low shear rates and an enhancement of the shear-thinning behavior at high shear rates. In situ rheological measurements were th

SUBMITTER: Le Brouster R 

PROVIDER: S-EPMC12223801 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature