Polymer nanocomposites of ultra-high molecular weight polyethylene

The growing demand for high-performance, light materials in several tertiary industries is a leading factor propelling the current polymer market. The international UHMWPE market was estimated at USD 1.87 billion in 2023 and is projected to increase by 11.3% CAGR (Compound Annual Growth Rate) from 2024 to 2030 (Ultra-high Molecular Weight Polyethylene Market Report, 2030). The aerospace, defence, and medical sectors have been this market's primary drivers. Ultra-high molecular weight polyethylene is an excellent polymer popularly used for its enhanced strength, exceptional wear resistance, and ability to support life processes without causing undesirable reactions. Nevertheless, conventional surface modification techniques mainly focus on improving specific properties for established applications. In this article, we have explored how UHMWPE nanocomposites loaded with different nanomaterials like carbon nanotubes, graphene oxides, hydroxyapatite, and metal alloys could be used to make high-performance products. This review advances the frontiers of knowledge by concentrating explicitly on three key application areas: defence, biomedical, and electromechanical. In the defence realm, these advancements could revolutionise ballistic protection equipment, paving the way for next-generation gear with superior capabilities. Within the biomedical sector, UHMWPE nanocomposites hold great promise for creating exceptional joint replacements that possess enhanced wear resistance and biocompatibility. Lastly, in the electromechanical domain, these composites offer the possibility of developing lightweight and high-performance tribological components, thereby driving advancements in diverse mechanical systems.