论文和技术资料

To address the challenge of combining high filtration efficiency with thermal insulation, a 3D nanofibrous sponge with curly fibers, hierarchical porosity, and ultralow density was fabricated via electrospinning. The material exhibits excellent filtration performance, low air resistance, and mechanical stability under repeated airflow, while maintaining higher skin temperatures than conventional counterparts. COMSOL Multiphysics simulations and thermal analyses demonstrate that its porous, interlocked fiber network effectively suppresses conduction, convection, and radiation, offering a promising route toward breathable, thermally protective materials for extreme environments.