Ultrathin fluoroacrylic coating wrapped microporous non-woven fabrics as efficient air filtration membranes

Article Materials Science, Composites

Spontaneous polarization induced electrostatic charge in washable electret composite fabrics for reusable air-filtering application

Sheng Ding et al.

Summary: This study introduces a washable electret air-filtering fabric with minimal cytotoxicity by combining spontaneous polarizing photochromic molecules and electrospinning electret technology, which shows significantly improved electrostatic charge and filtration efficiency compared to commercial polypropylene melt-blown fabrics. The photochromic Spiropyran(SP)/polystyrene(PS) electret fabric can maintain high filtration performance and low air flow resistance even after multiple washing/drying cycles, demonstrating potential applications in eco-friendly recyclable air purification and protection against pathogenic microbes.

COMPOSITES SCIENCE AND TECHNOLOGY (2022)

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Article Polymer Science

Evaluations of Electrostatic Filtration Efficiency and Antibacterial Efficacy of Antibacterial Electret Polypropylene Filters: Effects of Using Low Molecular Antibacterial Agent as Additive

Jia-Horng Lin et al.

Summary: Triclosan is used as an antibacterial agent in this study to enhance the antibacterial effects and filtration efficiency of the filters. The antibacterial electret PP filters demonstrate powerful filtration and antibacterial performances, making them highly qualified for filter applications.

POLYMERS (2021)

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Article Engineering, Chemical

Optimized microporous structure of ePTFE membranes by controlling the particle size of PTFE fine powders for achieving high oil-water separation performances

Yudong Shi et al.

Summary: By selecting four different particle sizes of PTFE powders and fabricating microporous membranes through paste extrusion and thermal stretching processes, the membrane prepared using smaller powders exhibited more and smaller micropores, showing superhydrophobicity, high separation efficiency and flux.

JOURNAL OF MEMBRANE SCIENCE (2021)

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Review Multidisciplinary Sciences

Airborne transmission of respiratory viruses

Chia C. Wang et al.

Summary: The COVID-19 pandemic has exposed critical knowledge gaps in our understanding of traditional respiratory virus transmission pathways, highlighting the need for updates. Improved understanding of aerosol transmission through studies of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection calls for a reassessment of major transmission pathways for other respiratory viruses, enabling better control measures to reduce airborne transmission.

SCIENCE (2021)

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Article Chemistry, Multidisciplinary

Novel micron-thick brick cladding of polyfluorosilicone acrylates, a case study of conservation of historic brick wall in Hongcun village

Jian Hao et al.

Summary: The technique using newly developed polyfluorosilicone acrylates solution was successfully applied to restore the surface of old bricks in a historic house, providing excellent waterproof, moisture-proof, mildew-proof, and long-lasting weather resistance effects.

RSC ADVANCES (2021)

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Article Engineering, Environmental