Category: Transient Plane Source
Abstract: The phase behavior of polymeric materials is understood through glass transition temperature. It is a temperature boundary above which the polymeric material is soft and viscous, and becomes hard, brittle, and glassy below this temperature. In the present work, PS/PMMA immiscible polymer blend samples are studied at different compositional ranges. Thermal transport properties of PS/PMMA polymeric blends were measured using the Hot Disk TPS 2500 S, from room temperature to 120°C. Variation in thermal conductivity and diffusivity of PS, PMMA, and PS/PMMA blends suggest a continuous structural change taking place. All PS/PMMA blends have a maximum thermal conductivity and diffusivity in the glass transition region.
Reference: Heat Mass Transfer (2016), 52: 2901-2911