Performance Evaluation of NANOGEIOS Military-Grade Phase-Change Material Textiles: Thermal regulation efficiency for combat personnel in extreme operational environments

This study provides a comprehensive performance evaluation of NANOGEIOS’s proprietary phase-change material (PCM) integrated textile system, engineered for military use in extreme operational environments. The system features encapsulated PCM nanocapsules embedded within textile fibers, enabling autonomous thermal regulation without external power. Military-grade test protocols were developed to assess thermal management efficiency under conditions simulating global combat theaters, including arctic (-40°C to -10°C), temperate (-10°C to +25°C), desert (+25°C to +55°C), and tropical (+20°C to +40 °C, 70–95% RH) environments. Experimental validation utilized climate-controlled chambers, programmable temperature cycling, and metabolic heat simulation (100–400 W/m²), alongside integration testing with standardized military equipment. Continuous skin temperature monitoring with calibrated thermocouples (±0.1°C accuracy) facilitated precise measurement. Compared to current military textiles, the PCM system achieved superior thermal regulation, with efficiency ratings of 91% in arctic, 94% in temperate, 89% in desert, and 87% in tropical conditions—representing a 21–53% improvement. Durability testing over 500 thermal cycles showed only a 3.9% reduction in efficiency, and chemical resistance trials confirmed 96% efficiency retention after exposure to environmental stressors. Integration with standard combat loads maintained 88% thermal efficiency and reduced system weight by 2.3 kg. The system’s dynamic response yielded rapid thermal equilibration (3.2 minutes) with minimal temperature overshoot (<1.5 °C). These validated metrics highlight significant operational benefits, including enhanced thermal comfort, reduced logistical burden, and improved mission endurance, establishing NANOGEIOS PCM textiles as a viable solution for next-generation autonomous thermal management in military applications.