Biobased Triesters as Plasticizers for Improved Mechanical and Biodegradable Performance of Polylactic Acid Fibrous Membranes as Facemask Materials DOI
Yufa Sun,

Sasha Eckstein,

Xinyi Niu

et al.

ACS Sustainable Chemistry & Engineering, Journal Year: 2024, Volume and Issue: 12(20), P. 7964 - 7975

Published: May 9, 2024

The COVID-19 pandemic has incredibly escalated the use of petroleum-based disposable facemasks, posing a significant environmental burden. In response, polylactide acid (PLA), biobased and biodegradable aliphatic polymer, been considered potential alternative. However, applications PLA in facemask materials are hindered by its inherent brittleness, poor toughness, slow degradation rate environment. Addressing these challenges, this study explored two triesters as green plasticizers to improve fibrous membranes with desired mechanical properties biodegradability. were mixed electrospun into membranes. influence varied contents on filtration efficiency, morphology, thermal behavior, properties, is systematically investigated. findings reveal that proper addition (7% content) not only effectively lowered glass transition cold crystallization temperatures from 65 52 °C 78 70 °C, respectively, without compromising performance but also significantly enhanced material's evidenced increased tensile strength 0.44 1.08 MPa elongation at break 1.32% 12.53%. Furthermore, plasticized exhibited an enzymatic 34.18% 50 after 96 h, more than 2-fold increase compared pure PLA. These advancements work contribute development high-performance eco-friendly materials, offering sustainable solution challenges posed conventional facemasks.

Language: Английский

Tannic-Acid-Enriched Poly(vinyl alcohol) Nanofibrous Membrane as a UV-Shie lding and Antibacterial Face Mask Filter Material DOI

Su Yeon Lee,

Jun Tae Kim, Kiramage Chathuranga

et al.

ACS Applied Materials & Interfaces, Journal Year: 2023, Volume and Issue: 15(16), P. 20435 - 20443

Published: April 13, 2023

Face masks are increasingly important in the battle against infectious diseases and air pollution. Nanofibrous membranes (NFMs) promising filter layers for removing particulate matter (PM) without restricting permeability. In this study, tannic-acid-enriched poly(vinyl alcohol) (PVA-TA) NFMs were fabricated by electrospinning PVA solutions containing large amounts of tannic acid (TA), a multifunctional polyphenol compound. We able to prepare uniform solution coacervate formation inhibiting robust hydrogen bonding between TA. Notably, NFM maintained its fibrous structure even under moist conditions after heat treatment use cross-linking agent. Further, mechanical strength thermal stability improved introduction The functional with high TA content showed excellent UV-shielding (UV-A: 95.7%, UV-B: 100%) antibacterial activity Escherichia coli (inhibition zone: 8.7 ± 1.2 mm) Staphylococcus aureus 13.7 0.6 mm). Moreover, particle filtration efficiency PVA-TA PM0.6 particles was 97.7% at 32 L min-1 99.5% 85 min-1, indicating performance low pressure drop. Therefore, TA-enriched is mask layer material UV-blocking properties has potential various practical applications.

Language: Английский

Citations

30
Antibacterial smart absorbent pad with Janus structure for meat preservation DOI
Xiangyu Jiao,

Jiaxuan Xie,

Haiyu Du

et al.

Food Packaging and Shelf Life, Journal Year: 2023, Volume and Issue: 37, P. 101066 - 101066

Published: March 23, 2023

Language: Английский

Citations

28
Research progress in preparation, properties, and applications of medical protective fiber materials DOI Open Access

Xiaolong Su,

Chao Jia, Hengxue Xiang

et al.

Applied Materials Today, Journal Year: 2023, Volume and Issue: 32, P. 101792 - 101792

Published: March 10, 2023

Language: Английский

Citations

27
Tailoring electrospun nanocomposite fibers of polylactic acid for seamless methylene blue dye adsorption applications DOI
Alsha Subash, Minoo Naebe, Xungai Wang

et al.

Environmental Science and Pollution Research, Journal Year: 2024, Volume and Issue: unknown

Published: May 6, 2024

Language: Английский

Citations

9
Biobased Triesters as Plasticizers for Improved Mechanical and Biodegradable Performance of Polylactic Acid Fibrous Membranes as Facemask Materials DOI
Yufa Sun,

Sasha Eckstein,

Xinyi Niu

et al.

ACS Sustainable Chemistry & Engineering, Journal Year: 2024, Volume and Issue: 12(20), P. 7964 - 7975

Published: May 9, 2024

The COVID-19 pandemic has incredibly escalated the use of petroleum-based disposable facemasks, posing a significant environmental burden. In response, polylactide acid (PLA), biobased and biodegradable aliphatic polymer, been considered potential alternative. However, applications PLA in facemask materials are hindered by its inherent brittleness, poor toughness, slow degradation rate environment. Addressing these challenges, this study explored two triesters as green plasticizers to improve fibrous membranes with desired mechanical properties biodegradability. were mixed electrospun into membranes. influence varied contents on filtration efficiency, morphology, thermal behavior, properties, is systematically investigated. findings reveal that proper addition (7% content) not only effectively lowered glass transition cold crystallization temperatures from 65 52 °C 78 70 °C, respectively, without compromising performance but also significantly enhanced material's evidenced increased tensile strength 0.44 1.08 MPa elongation at break 1.32% 12.53%. Furthermore, plasticized exhibited an enzymatic 34.18% 50 after 96 h, more than 2-fold increase compared pure PLA. These advancements work contribute development high-performance eco-friendly materials, offering sustainable solution challenges posed conventional facemasks.

Language: Английский

Citations

9