TY - JOUR T1 - Mechanically Robust Polyurethane Microfibrous Membranes Exhibiting High Air Permeability AU - Jianfeng Ge, Aikifa Raza, Fu Fen, Yang Si, Yang Li, Jianyong Yu & Bin Ding JO - Journal of Fiber Bioengineering and Informatics VL - 4 SP - 411 EP - 421 PY - 2012 DA - 2012/05 SN - 5 DO - http://doi.org/10.3993/jfbi12201206 UR - https://global-sci.org/intro/article_detail/jfbi/4892.html KW - Polyurethane KW - Microfibrous Membranes KW - Multi-syringe Electrospinning KW - Air Permeability AB - Microporous polyurethane (PU) nano-microfibrous membranes exhibiting robust mechanical property with high air permeability were prepared using one-step electrospinning method. The role of compositions of electrospinning solution on the morphology, hydrophobicity and mechanical property of PU membranes were discussed, and a probable two-step break mechanism upon the external stress is proposed. Furthermore, the as-prepared membranes exhibited good air permeability (5.9 mm/s), high water resistance (5.7 kPa), and water vapor transmittance (7868 g/m², 24 h), and comparable tensile strength (15.95 MPa), suggesting their use as promising materials for various potential applications in protective clothing, membrane distillation, bioseparation, tissue engineering and catalyst carriers, etc.