Chaotic Advection and Its Application to Extruding Micro- and Nanostructured Plastic Materials

摘要: Publisher Summary Chaotic advection-based processing of plastics is a new technology that offers opportunities to enhance physical properties, impart functionalities, or create decorative patterns in extrusions. It can be used with existing polymer resins and well suited melt shear sensitive materials. Droplet dispersions solid particle mixtures also produced. Both miscible immiscible combinations although structural outcomes differ. Structured extruded contain, for example, thousands layers, spongelike assemblies, interconnected percolating networks, ribbons, abundant submicron fibers, oriented particles. advection subject fluid mechanics denotes the chaotic movements passive particles response even simple flowfields. Because advection, it now understood complex motions fluids do not require flow fields. Even where discrete exist melt, this understanding useful because small domains move similar fashion. Simple fields allow controllable formation melts structures have both fine-scale features while being physically expansive. For two components arranged into thin alternating layers blend consisting long, fibers.