In order to study the filtration performance of electrospun bio-based polylactic acid air filter membrane, we used gravimetric analysis to determine the permeability of three kinds of dust particles in different fiber filter membranes. The results show that it can effectively capture deeper penetrating particles, but these particles will not be captured by the electrospun air filter membrane.
In this study, a multifunctional and antibacterial nanofiber membrane was prepared. The antibacterial properties of nanofiber membranes against Escherichia coli and Bacillus subtilis were studied. The successful synthesis of SPI/PA6-AgNPs nanofiber membrane will make it a potential candidate for a new type of antibacterial and high-performance air filter.
This study demonstrated a convenient procedure with the potential to develop the antimicrobial and anti-tuberculosis properties of electrospun fibrous membranes containing G. mangostana, which are beneficial in filtration applications for respirators, face masks, and air-conditioning filters.
As the mango contained in the spinning solution increases, the amount of mango released from the sample increases proportionally. This research proves the potential of developing electrospun fiber membranes with antibacterial and anti-tuberculosis properties, which is beneficial for filtration applications in respirators, masks and air-conditioning filters.
The air filtration efficiency of the cellulose acetate dendritic nanofiber membrane can reach 99.58%, and the final cellulose dendritic membrane still maintains 98.37%. The small average pore size caused by the dendritic structure and the strong resistance to organic solvents make it a potential candidate for membrane separation.
This article reports that the DTAB modified membrane exhibits antibacterial properties against Staphylococcus aureus subspecies. A concentration of 0.5% by weight of DTAB in the spinning solution will only partially inhibit bacterial growth, while a concentration of 1.0% by weight will result in complete inhibition of bacterial growth.
The potential of ultra-light nanofiber aerogels (NFA) and nanofiber sponges for particle or aerosol filtration has been studied. These two characteristics are in sharp contrast, the pressure drop of the latter increases significantly with the increase of filtration time, and the sensitivity to high frequency operating speed is increased by 105 times.
The fiber membrane with olive-shaped beaded structure and high porosity prepared by the electrospinning method has proved to be able to be used as an air filter. The GOPAN composite membrane developed in this work has broad potential in the development and manufacture of a new generation of filter media, which has stronger performance and can be used for air purification and commercial applications.
A new type of non-woven filter composed of polysulfone and polyurethane nanofibers is proposed. Compared with nanofiber nonwovens with common structure, honeycomb nonwovens have higher filtration efficiency (about 99.939%), better mechanical strength (about 105.24 N g(-1)) and improved quality factor (About 0.04 Pa-1).
To control the fiber density and the arrangement across the electrospun mat, the electrospun nanofiber membrane was designed to remove aerosol particles. The air filtration efficiency of the membrane is in the range of 77.7% to 99.616%, and the quality factor is between 0.0026 and 0.0204. This shows that changing the fiber density is an effective way to improve air filtration performance.
In this study, we prepared polydimethylsiloxane (PDMS) modified polyurethane-polycaprolactone nanofiber membranes by electrospinning technology. The film exhibits robust mechanical properties, high strength (breaking stress = 11.7MPa) and excellent thermal stability. This indicates that they will be promising candidates for waterproof and breathable applications.
An efficient, environmentally friendly, translucent and multifunctional air purification filter is reported. For PM with sizes smaller than 2.5 and 10μm, the air filtration efficiency of the manufactured SNAF can reach 90% and 97%, respectively, which exceeds the performance of commercial semi-HEPA filters. After use, SNAF may degrade naturally.