Morphological and permeable properties of antibacterial double-layered composite nonwovens consisting of microfibers and nanofibers |
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| Affiliation: | 1. Deptartment of Nanotechnology, Chungnam National University, Daejon 305-764, South Korea;2. Department of Technical Textile& Materials R&BD Group, Korea Institute of Industrial Technology, South Korea;3. Department of Advanced Organic Materials and Textile System Engineering, Chungnam National University, Daejeon 305-764, South Korea;1. Institute of Biomaterial, Department of Applied Chemistry, College of Science, South China Agricultural University, Guangzhou 510642, China;2. Research Center of Translational Medicine, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510080, China;3. College of Animal Science, South China Agricultural University, Guangzhou 510642, China;4. Key Laboratory of Application Technology of Environmental Photocatalysis of Hunan Province, Changsha University, Changsha 410022, China;5. Department of Anatomy, Guangdong Provincial Key laboratory of Construction and Detection in Tissue Engineering, Southern Medical University, Guangzhou 510515, China;1. Mechanical Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong;1. School of Textile and Garment, Anhui Polytechnic University, Wuhu 241000, Anhui, China;2. Key Laboratory of Eco-Textiles (Ministry of Education), Nonwoven Technology Laboratory, Jiangnan University, Wuxi 214122, China;1. China-Australia Institute for Advanced Materials and Manufacturing, College of Materials and Textile Engineering, Jiaxing University, Jiaxing 314001, China;2. College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou 311121, China;3. School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou 310023, China |
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| Abstract: | Melt-blown nonwovens consisting of only micron-sized fibers were not sufficient to completely prevent bacterial invasion using a structure property of filter media composed of micro pore size alone. To improve the percent filtration efficiency (E) and antibacterial activity of nonwovens, a novel type of polyurethane (PU) composite nonwovens composed of double layers was fabricated using a combination of melt-blowing and electrospinning. In this study, melt-blown thermoplastic polyurethane (TPU) nonwovens were used to support the mechanical property to act as a substrate layer. In addition, the electrospun PU nanofibrous layer containing the AgCl nanoparticles (NPs) as an antibacterial agent provided antibacterial activity and filtration efficiency. Double-layered composite nonwovens were characterized in terms of pore structure and antibacterial activity. The filtration efficiency of PU composite nonwovens containing an AgCl NPs was improved in comparison with PU composite nonwovens, and their antibacterial activity against three micro-organisms was 99.9%. |
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| Keywords: | A Polymer (textile) fibers B Porosity C Chemical analysis E Assembly |
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