Thermal Management of Quartz Fiber Reinforced Composites via Additive Manufacturing Method

ABSTRACT This study focuses on the development of thermal management textiles by incorporating boron nitride (BN) and quartz fibers (QFs) into a polyurethane matrix via additive manufacturing. During fabrication, BN was aligned with QFs within the polyurethane matrix, thereby significantly enhancing both thermal conductivity and mechanical properties. At a BN to QF ratio of 1:1, the thermal conductivity of the composite filler increased by 110.43% compared with the neat QF. The composite fillers were further blended with polyurethane to prepare fiber‐reinforced composites, which were subsequently woven into thermal management textiles. The resulting textiles exhibited a thermal conductivity of 0.49 ± 0.01 W/m·K and outstanding resistance to mechanical deformation.