Nanomaterials for Thermal Insulation: Enhancements and Applications

Abstract

Nanomaterials have emerged as revolutionary agents in enhancing thermal insulation properties across a wide range of applications, from building envelopes to aerospace systems. Their exceptional surface area-to-volume ratio, tunable porosity, and low thermal conductivity enable superior heat resistance compared to conventional insulators. This paper reviews the current advancements in nanostructured thermal insulators, focusing on aerogels, nanoclays, and phase change nanocomposites. It discusses the mechanisms of thermal resistance at the nanoscale, recent fabrication methods, and industrial applicability. The review also highlights challenges such as cost-effectiveness, mechanical stability, and environmental safety, providing insights for future developments.