Researchers at Donghua University have engineered a new class of medical textiles that strike a rare balance between protection and comfort. The study, published in Nano-Micro Letters, introduces highly permeable yet liquid-repellent fabrics designed using micro/nano-network technology, opening new doors in healthcare safety gear.
The team, led by Professors Xianfeng Wang and Bin Ding, developed what they term “highly permeable protective textiles” (HPPT). These advanced materials are designed to be both breathable and resistant to fluid penetration, two qualities that rarely coexist in conventional protective gear.
The key lies in the fabric’s intricate micro/nano-network structure, which enables superior air (14.24 mm/s) and moisture permeability (7.92 kg/m² per day), while maintaining robust resistance to liquids such as water, blood, oil, and ethanol. In laboratory tests, the textiles sustained a high hydrostatic pressure (12.86 kPa), proving their effectiveness in repelling external fluids.
The fabrication process, which integrates a non-solvent induced phase separation (NIPS) method with calcium chloride and fluorinated polyurethane, allows for scalable production on various fabric types—woven, non-woven, and knitted. A final spray treatment with a finishing agent further enhances water resistance without compromising softness or flexibility.
Durability was another key focus. The textiles maintained performance even after 1000 abrasion cycles and 100 washing cycles. Mechanical tests revealed tensile strength levels (65.56 MPa) five times greater than conventional HDPE membranes, making them suitable for long-term and intensive use.
Molecular modeling and optical analysis confirmed how the combination of materials-controlled pore formation and surface energy optimizes the fabric’s protective and breathable properties. The textiles also remained stable under elevated temperatures and exhibited antibacterial characteristics due to the inclusion of bacteriostatic agents.
This innovation paves the way for the future of multifunctional medical clothing, potentially integrating smart features like bio-monitoring or thermal regulation. Beyond hospitals, the material could be adapted for outdoor wear, emergency response, and industrial environments, anywhere breathable yet reliable protection is vital.
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