Superhydrophobic and Breathable Polyacrylonitrile/Silica/Perfluoroalkyl Ethyl Methacrylate Nanofiber Membranes Prepared by Solution Blow Spinning

作者：Wei Zhang, Guangwu Sun, Yudong Wang, Wanli Han, Yinjiang Zhang, Wenfeng Hu, Sanfa Xin, Changfa Xiao · 发表于：ACS Omega · 年份：2022 · DOI：10.1021/acsomega.2c03602 · 被引用次数：18 · 研究领域：Electrospun Nanofibers in Biomedical Applications、Advanced Sensor and Energy Harvesting Materials、Surface Modification and Superhydrophobicity

High Resolution Image Download MS PowerPoint Slide Hydrophobic and breathable nanofiber membranes have attracted considerable attention owing to their applications in various fields. In this study, we fabricated superhydrophobic and breathable nanofiber membranes using solution blow spinning. We optimized the spinning process parameters by analyzing their effects on the structure and properties of the nanofiber membranes. And the nanofiber membranes achieved superhydrophobicity through hydrophobic modification treatment. The average fiber diameter and pore size of the obtained membrane were 0.51 and 13.65 μm, respectively. The membranes exhibited superhydrophobicity, breathability, and mechanical properties: water vapor transmission of 12.88 kg/m 2 /day, air permeability of 10.97 mm/s, water contact angle of 150.92°, maximum tensile stress of 5.36 MPa, and maximum elongation at break of 12.27%. Additionally, we studied the impact of heat treatment on the nanofiber membranes. The membranes prepared in this study can be applied to protective garments, outdoor clothing, antifouling materials, etc. Because of its relatively higher production efficiency, solution blow spinning is a prospective method for producing functional nanofibers.