Interfacial interactions between the matrix and the nanofillers significantly influence the properties of nanocomposites. Strong interfacial bonding leads to better stress transfer, improved mechanical properties, and enhanced thermal and electrical conductivity. Techniques like FTIR and XPS (X-ray Photoelectron Spectroscopy) are used to study these interactions and tailor the composite's properties by modifying the surface chemistry of the nanoparticles.
