High‐Efficiency PLA Nano‐Microfibrous Filters Enabled by Bimodal Structure and Corona Discharge DOI
Ali Toptaş

Journal of Applied Polymer Science, Journal Year: 2025, Volume and Issue: unknown

Published: May 10, 2025

ABSTRACT Air pollution is a pressing issue for environmental sustainability and human health, with air filters playing pivotal role in mitigating its effects. However, conventional polymer‐based pose challenges. This study focuses on developing biodegradable poly(lactic acid) fibrous unimodal bimodal filter webs using electro‐blowing (EB) solution‐blowing (SB) techniques. Fiber diameters were controlled by adjusting solution concentrations (10% 20% w/w) applying an electric field during production. EB low‐concentration solutions produced nanofibers (Y) averaging 0.14 μm, while SB high‐concentration yielded fibers (X) around 1.60 μm. Bimodal exhibited dual‐peak distribution centered at 0.17 1.56 Filtration tests 95 L/min flow rate PM 0.3 particles revealed that the sample had highest filtration efficiency (96.562%) airflow resistance (177 Pa). Among configurations, X + Y, nano/microfibers collected simultaneously, demonstrated best quality factor (98.604% 146 Pa Δ P ). Corona discharge treatment further enhanced efficiency, Y achieving 99.997% efficiency. After week of repetitive testing, maintained high performance 99.972% 192 . These findings highlight PLA filters' potential as sustainable efficient solutions.

Language: Английский

Production of polystyrene nanofibers for adsorption of mineral oils derived from petroleum DOI

Kelen Pagliarini da Silveira,

Janaína da Silva Crespo, Jadna Catafesta

et al.

Journal of Cellular Plastics, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 19, 2025

Technological innovations can offer a multitude of benefits to modern society; however, they often fail fully address the desired requirements for specific applications, particularly when considering environmental impacts solid waste. Expanded polystyrene (EPS) waste exemplifies this challenge, highlighting urgent need innovative and effective solutions existing gaps in conventional technologies. In regard, chemical dissolution methods using organic solvents emerge as viable approach polymer recovery impurity removal. This study focused on preparation EPS nanofibers from polymeric with concentrations 10% (EPS_10) 15% (w/w) (EPS_15) chloroform, employing solution blow spinning technique. The resulting were then characterized morphologically through scanning electron microscopy evaluated their oil adsorption efficiency. Overall, EPS_10 EPS_15 displayed average diameters 149.7 330.5 nm, respectively, achieved maximum capacities 37.0 70.1 g/g petroleum jelly, 33.3 48.9 lubricating oil. These results emphasize transformative potential high-performance sorbent materials, offering promising opportunities application spill remediation wastewater treatment. By addressing critical issue, work contributes developing managing mitigating its ecological impact.

Language: Английский

Citations

0
Study on the Melt Electrospinning Method with Internal Electrode and Fiber Refinement DOI
Qi Xia, Hao Wang, Bowen Yang

et al.

Fibers and Polymers, Journal Year: 2025, Volume and Issue: unknown

Published: March 4, 2025

Language: Английский

Citations

0
High‐Efficiency PLA Nano‐Microfibrous Filters Enabled by Bimodal Structure and Corona Discharge DOI
Ali Toptaş

Journal of Applied Polymer Science, Journal Year: 2025, Volume and Issue: unknown

Published: May 10, 2025

ABSTRACT Air pollution is a pressing issue for environmental sustainability and human health, with air filters playing pivotal role in mitigating its effects. However, conventional polymer‐based pose challenges. This study focuses on developing biodegradable poly(lactic acid) fibrous unimodal bimodal filter webs using electro‐blowing (EB) solution‐blowing (SB) techniques. Fiber diameters were controlled by adjusting solution concentrations (10% 20% w/w) applying an electric field during production. EB low‐concentration solutions produced nanofibers (Y) averaging 0.14 μm, while SB high‐concentration yielded fibers (X) around 1.60 μm. Bimodal exhibited dual‐peak distribution centered at 0.17 1.56 Filtration tests 95 L/min flow rate PM 0.3 particles revealed that the sample had highest filtration efficiency (96.562%) airflow resistance (177 Pa). Among configurations, X + Y, nano/microfibers collected simultaneously, demonstrated best quality factor (98.604% 146 Pa Δ P ). Corona discharge treatment further enhanced efficiency, Y achieving 99.997% efficiency. After week of repetitive testing, maintained high performance 99.972% 192 . These findings highlight PLA filters' potential as sustainable efficient solutions.

Language: Английский

Citations

0