Reactive Extrusion: Filled Polymer Compounds and Its Applications

This chapter unveils the transformative potential of fillers and nanofiller infusion into polymer matrices through reactive extrusion. Reactive extrusion, recognized as a versatile platform, capitalizes on high shear forces, intense mixing, and controlled temperature conditions for achieving uniform filler dispersion and enhanced interactions within the polymer matrix. The significance of interactions and interfaces is underscored, highlighting surface functionalization, coupling agents, and interfacial engineering for improved filler-matrix adhesion by examples and applications. Opportunities presented by layered nanofillers, such as metallic and non-metallic fillers, for exfoliation are discussed, elucidating their contribution to elevated material properties, and tailored structural characteristics. Shear-induced enhancement during reactive extrusion takes center stage, demonstrating its pivotal role in achieving desired filler dispersion and orientation for enhanced material properties. While acknowledging challenges in process optimization, striking a harmonious balance between property enhancements and processability remains paramount. Serving as a comprehensive guide for researchers and practitioners, this chapter provides nuanced insights into the intricacies of nanofiller incorporation via reactive extrusion and its profound impact on polymer nanocomposites.