Atomic force microscopy (AFM) results, together with scanning electron microscopy (SEM) and tensile strength, proved the following conclusion: silane modification has a positive effect on the morphology and mechanical properties of electrospun PCL nanofibers. It can be concluded that the morphology and mechanical characteristics of single fibers in the nanofiber mat are related to the entire fiber structure.
The relationship between the concentration of the solution and the structural parameters of the fiber membrane is analyzed. The air permeability and filtration performance of PVDF fiber membrane are discussed. The air permeability and filtration efficiency of the fiber membrane are positively related to the pore size.
Triton X-100 active agent can enhance the ability to produce nanofibers by electrospinning. Carry out filtration test using nanoparticles (5.94-224.7 nm) and resistance test to humid air currents. It was found that there is an optimal concentration. Provides a high quality factor for nanofiltration. The filter is moisture resistant.
This review will briefly introduce electrospinning polymer materials, detailed information on existing air filtration/purification technologies, and advancement/practical options through new nanofibers/nano membranes (advantages and disadvantages) to expand the use of nanofiber membranes Potential applications in air filtration/purification performance and reinforcing fibers.
Mine dust poses a huge threat to the health of miners. We conclude that nanotechnology, especially electrospun nanofibers, has become a potential candidate for personal protection in coal mines due to its simple technology, high efficiency, low resistance, controllable structure, and potential safety, and it can be reused. long lasting.
High-quality and comfortable personal protective materials are receiving more and more attention. The cheap price of Janus nanofiber porous membranes, easy-to-obtain component materials and low breathing resistance, highlight their value in the development of personal wearable air purifiers.
The electrospun nanofiber air filter can achieve excellent particle filtration efficiency with reduced pressure. Therefore, they can be installed in buildings to reduce indoor PM2.5 concentrations. In order to improve the filtration performance, this research has developed a design and manufacturing method for electrospun nanofiber air filter, which has the smallest pressure drop under the target PM2.5 filtration efficiency.
In this research, we introduced a new type of effective air filter membrane that can be used for outdoor protection. This research provides new insights into the design and development of high-performance and high-visibility green filter materials, including personal protection and architectural screens. (C) 2020 Elsevier Inc. reserves all rights.
This work developed a 3D patterned embossed nanofiber membrane (ENM) for air mask filtration, and compared this structure (EMM) with a planar nanofiber material (PNM). Compared with PNM, the relief structure enhances the developed pore structure and large surface area of NM.
We have developed a multifunctional material that has ozone and PM removal functions. It is a new composite material composed of surface carboxylated polypropylene non-woven fabric and cerium-doped manganese oxide particles. The conclusion is that this composite non-woven fabric can be used for personal protection and air purification in environments involving ozone and complex pollutants.
Most masks currently used to prevent the spread of COVID-19 usually do not have bactericidal properties. The chlorinated PSDT/PU nanofiber net membrane shows excellent sterilization and detoxification efficiency in a short time. The successful synthesis of PSDT/PU NNM provides innovative insights for exploring nano-mesh and sterilizing filter materials.
This article reports on materials and structures developed by bionic thinking. The properties and process parameters of the polymer solution were customized by electrospinning, and a multi-scale dendritic nanofiber membrane was prepared. The effects of salt type, salt content and processing parameters on the morphology and performance of TLNM are reported.
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