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

и другие.

ACS Sustainable Chemistry & Engineering, Год журнала: 2024, Номер 12(20), С. 7964 - 7975

Опубликована: Май 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.

Язык: Английский

The History of Electrospinning: Past, Present, and Future Developments DOI Creative Commons
Antonios Keirouz, Zhe Wang, Vundrala Sumedha Reddy

и другие.

Advanced Materials Technologies, Год журнала: 2023, Номер 8(11)

Опубликована: Май 5, 2023

Abstract Electrospinning has rapidly progressed over the past few decades as an easy and versatile way to fabricate fibers with diameters ranging from micrometers tens of nanometers that present unique intricate morphologies. This led conception new technologies diverse methods exploit basic electrohydrodynamic phenomena electrospinning process, which in turn invention novel apparatuses have reshaped field. Research on revamping conventional principally focused achieving three key objectives: upscaling process while retaining consistent morphological traits, developing 3D nanofibrous macrostructures, formulating fiber configurations. review introduces extensive group techniques presents a comperative study based apparatus type output. Then, each process's advantages limitations are critically assessed identify bona fide practicability relevance technological breakthrough. Finally, outlook future developments advanced is outlined, emphasis upscaling, translational research, sustainable manufacturing prospective solutions current shortcomings.

Язык: Английский

Процитировано

191

Recent Progress of the Preparation and Application of Electrospun Porous Nanofibers DOI Open Access
Pu Wang, He Lv,

Xianyang Cao

и другие.

Polymers, Год журнала: 2023, Номер 15(4), С. 921 - 921

Опубликована: Фев. 12, 2023

Electrospun porous nanofibers have gained a lot of interest recently in various fields because their adjustable structure, high specific surface area, and large number active sites, which can further enhance the performance materials. This paper provides an overview common polymers, preparation, applications electrospun nanofibers. Firstly, polymers commonly used to construct structures main pore-forming methods by electrospinning, namely template method phase separation method, are introduced. Secondly, recent air purification, water treatment, energy storage, biomedicine, food packaging, sensor, sound wave absorption, flame retardant, heat insulation reviewed. Finally, challenges possible research directions for future study discussed.

Язык: Английский

Процитировано

79

Bioelectrets in Electrospun Bimodal Poly(lactic acid) Fibers: Realization of Multiple Mechanisms for Efficient and Long-Term Filtration of Fine PMs DOI
Mengke Tang,

Liang Jiang,

Cunmin Wang

и другие.

ACS Applied Materials & Interfaces, Год журнала: 2023, Номер 15(21), С. 25919 - 25931

Опубликована: Май 16, 2023

Despite the great potential in fabrication of biodegradable and eco-friendly air filters by electrospinning poly(lactic acid) (PLA) membranes, filtering performance is frequently dwarfed inadequate physical sieving or electrostatic adsorption mechanisms to capture airborne particulate matters (PMs). Here, using parallel spinning approach, unique micro/nanoscale architecture was established conjugation neighboring PLA nanofibers, creating bimodal fibers electrospun membranes for enhanced slip effect significantly reduce resistance. Moreover, bone-like nanocrystalline hydroxyapatite bioelectret (HABE) exploited enhance dielectric polarization properties PLA, accompanied controlled generation junctions induced microaggregation HABE (10-30 wt %). The incorporated supposed orderly align applied E-field largely promote charging capability surface potential, gradually increasing 7.2 kV from lowest level 2.5 pure PLA. This mainly attributed HABE-induced orientation backbone chains C═O dipoles, as well interfacial charges trapped at interphases HABE-PLA crystalline region-amorphous Given multiple capturing mechanisms, micro/nanostructured PLA/HABE were characterized excellent sustainable performance, e.g., filtration efficiency PM0.3 promoted 59.38% 94.38% after addition 30 % a moderate airflow capacity 32 L/min 30.78 83.75% highest 85 L/min. It interest that pressure drop decreased, arising between ultrafine nanofibers conjugated microfibers. proposed combination nanostructured electret multistructuring strategy offers function integration efficient low resistance are highly useful pursue fully filters.

Язык: Английский

Процитировано

48

Stereocomplexation-Enhanced Electroactivity of Poly(lactic acid) Nanofibrous Membranes for Long-Term PM Capturing and Remote Respiratory Monitoring DOI
Xinyi Song, Mengke Tang,

Cunmin Wang

и другие.

ACS Sustainable Chemistry & Engineering, Год журнала: 2024, Номер 12(9), С. 3554 - 3564

Опубликована: Фев. 1, 2024

Development of poly(lactic acid) (PLA) nanofibrous membranes (NFMs) holds great potential to replace the conventional nondegradable air filters, but is largely thwarted by intrinsically low electroactivity and poor electret properties PLA. Here, highly electroactive PLA NFMs coupling triboelectric nanogenerator (TENG)-based recharging mechanisms are demonstrated for long-term respiratory protection from fine ultrafine particulate matters (PM0.3 PM2.5), as well wireless intelligent monitoring physiological characters. To enhance in situ self-charging NFMs, we proposed a stereocomplexation strategy involving direct electrospinning PLLA/PDLA nanofibers (approaching 500 nm), conferring remarkable promotion phases, dielectric properties, surface (over 10 kV), output (nearly 20 V at humanoid breathing conditions). Benefiting well-tailored morphology features, exhibited high (180 V) excellent filtration performance (96.32% PM2.5 92.09% PM0.3) while providing desirable resistance (only ∼200 Pa even 85 L/min), far surpassing those pristine PLLA counterpart (60 V, 72.92%, 281 Pa, respectively). This was accompanied high-sensitivity vivo cardiorespiratory characters such coughing breathing, essentially arising respiration-triggered distinct TENG mechanisms. Featuring efficient noninvasive monitoring, our biodegradable appealing healthcare real-time monitoring.

Язык: Английский

Процитировано

28

Nanopatterning of beaded poly(lactic acid) nanofibers for highly electroactive, breathable, UV-shielding and antibacterial protective membranes DOI

Ting Yang,

Xuanjin Zhu,

Yu Zhang

и другие.

International Journal of Biological Macromolecules, Год журнала: 2024, Номер 260, С. 129566 - 129566

Опубликована: Янв. 20, 2024

Язык: Английский

Процитировано

26

A systematic review on green and natural polymeric nanofibers for biomedical applications DOI
Vishal Gavande, Saravanan Nagappan, Bongkuk Seo

и другие.

International Journal of Biological Macromolecules, Год журнала: 2024, Номер 262, С. 130135 - 130135

Опубликована: Фев. 12, 2024

Язык: Английский

Процитировано

26

Hierarchically structured poly(lactic acid) nanofibers by organic–inorganic nanohybridization strategy towards efficient PM removal and respiratory monitoring DOI

Ting Yang,

Keke Xu,

Guiying Zhu

и другие.

Separation and Purification Technology, Год журнала: 2024, Номер 354, С. 128886 - 128886

Опубликована: Июль 28, 2024

Язык: Английский

Процитировано

22

Flexible and Robust Core–Shell PANI/PVDF@PANI Nanofiber Membrane for High-Performance Electromagnetic Interference Shielding DOI
Mingyi Chen,

Maochun Li,

Yufei Gao

и другие.

Nano Letters, Год журнала: 2024, Номер 24(8), С. 2643 - 2651

Опубликована: Фев. 14, 2024

Developing high-performance electromagnetic interference (EMI) shielding materials that are lightweight and flexible have excellent mechanical properties is an ideal choice for modern integrated electronic devices microwave protection. Herein, we report the preparation of core–shell polyaniline (PANI)-based nanofiber membranes EMI through seed polymerization. Electrospinning a PANI solution leads to homogeneously dispersed on surface, with abundant attachment sites aniline electrostatic adsorption hydrogen bonding interaction, allowing grow surfaces. This stable heterostructure provides more interfaces reflecting absorbing microwaves. The PANI/PVDF@PANI achieved efficiency (SE) 44.7 dB at thickness only 1.2 mm, exhibiting exceptionally high specific effectiveness (SE/t) 372.5 cm–1. Furthermore, composite membrane exhibits outstanding stability, durability, air permeability, moisture also making it suitable applications such as EM clothing.

Язык: Английский

Процитировано

20

Extreme Orientation of Stereocomplexed Poly(lactic acid) Induced Ultrafine Electroactive Nanofibers for Respiratory Healthcare and Intelligent Diagnosis DOI

Cunmin Wang,

Xinjian He,

Guiying Zhu

и другие.

ACS Sustainable Chemistry & Engineering, Год журнала: 2024, Номер 12(24), С. 9290 - 9300

Опубликована: Июнь 5, 2024

Biodegradable and renewable poly(lactic acid) (PLA) fibrous membranes have emerged as a promising approach to replace traditional polymeric air filters, but are still challenged by relatively low electroactivity poor electret properties. Herein, we disclose an effective electrospinning strategy substantially promote the extreme orientation of stereocomplexed PLA (OSC-PLA), conferring significant alignment refinement electrospun nanofibers (diameter ∼370 nm), well facilitate formation electroactive phases (i.e., β-phase, phase, stereocomplex crystals). Benefiting from well-tailored morphology remarkable electroactivity, OSC-PLA nanofibrous (NFMs) were characterized largely improved dielectric properties, surface potential (over 3.64 kV), PM0.3 filtration properties (93.33% at 85 L/min) compared pure PLLA membrane (2.01 kV 80.21%). It enabled assembly triboelectric nanogenerator (TENG) filters using NFMs active layer, yielding excellent charge regeneration mechanisms output current nearly 80 nA, driven respiratory vibrations L/min, thus permitting high humidity resistance, exemplified removal efficiency 95.02% RH 90%. Moreover, deep machine learning man–machine interaction integrated with OSC-PLA-based TENGs, demonstrating long-term monitoring high-precision diagnosis (accuracy 96.88%) various patterns. The proposed ecofriendly ultrafine highly appealing for sustained healthcare self-powered intelligent diagnosis.

Язык: Английский

Процитировано

20

Recent progress on sustainable membrane manufacturing with green solvents and biopolymers DOI
Chidambaram Thamaraiselvan, S. Ranil Wickramasinghe

Current Opinion in Chemical Engineering, Год журнала: 2025, Номер 47, С. 101092 - 101092

Опубликована: Янв. 27, 2025

Язык: Английский

Процитировано

2