Abstract
Chaotic advection-based processing of plastics is a new plastics processing technology that offers opportunities to enhance physical properties (e.g., toughness and electrical conductivity), impart functionality (e.g., strain-sensitive electrical resistivity), or create decorative patterns (e.g., wood grain effect) in extrusions. It can be used with existing polymer resins and is well suited to melt processing of shear-sensitive materials. Both miscible and immiscible polymer combinations can be used. Structured plastics can be extruded that can contain thousands of layers, sponge-like assemblies, interconnected layers, percolating networks, ribbons, abundant submicron fibers, or oriented particles. Dispersions of droplets or solid particles can also be produced. A large variety of microscale and nanoscale structures can be formed in extrusions. Nanostructured materials can be extruded in large quantities and in many forms. Applied to polymer processing, a wide variety of microscale and nanoscale internal structures can be formed even at a fixed material composition.
Published Version
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