Characterization and Analysis of Shape Memory Polymer Composites With Cellulose Nanocrystal Fillers

Résumé du livre

A modified dual-mode heat-flow meter method and a dynamic plane-source method are used to characterize the thermal conductivity of shape memory polymer composites with tunicate cellulose nanocrystals (CNC) fillers. The CNC fillers are shown to enhance the thermal conductivity of the composites by a factor of three to 0.31 W/m-K in the in-plane direction and by a factor of two to 0.23 W/m-K in the through-plane direction over the neat epoxy. These measurements imply that the thermal conductivity of the CNCs is on the order of 7.3 W/m-K as estimated by a simple composite thermal conductivity model. This investigation is a preliminary step towards future investigation of filler alignment driven thermal conductivity switching properties that may be exhibited by shape memory polymer composites.