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Lee WJ, Oh S, Park JE, Hwang J, Eom H. Scalable, solvent-free transparent film-based air filter with high particulate matter 2.5 filtration efficiency. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 895:165197. [PMID: 37391139 PMCID: PMC10300200 DOI: 10.1016/j.scitotenv.2023.165197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 06/13/2023] [Accepted: 06/27/2023] [Indexed: 07/02/2023]
Abstract
Over the course of the COVID-19 pandemic, people have realized the importance of wearing a mask. However, conventional nanofiber-based face masks impede communication between people because of their opacity. Moreover, it remains challenging to achieve both high filtration performance and transparency through fibrous mask filters without using harmful solvents. Herein, scalable transparent film-based filters with high transparency and collection efficiency are fabricated in a facile manner by means of corona discharging and punch stamping. Both methods improve the surface potential of the film while the punch stamping procedure generates micropores in the film, which enhances the electrostatic force between the film and particulate matter (PM), thereby improving the collection efficiency of the film. Moreover, the suggested fabrication method involves no nanofibers and harmful solvents, which mitigates the generation of microplastics and potential risks for the human body. The film-based filter provides a high PM2.5 collection efficiency of 99.9 % while maintaining a transparency of 52 % at the wavelength of 550 nm. This enables people to distinguish the facial expressions of a person wearing a mask composed of the proposed film-based filter. Moreover, the results of durability experiments indicate that the developed film-based filter is anti-fouling, liquid-resistant, microplastic-free and foldability.
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Affiliation(s)
- Woo Jin Lee
- Carbon Neutral Technology R&D Department, Korea Institute of Industrial Technology, Cheonan 31056, Republic of Korea; Department of Mechanical Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Seungtae Oh
- Carbon Neutral Technology R&D Department, Korea Institute of Industrial Technology, Cheonan 31056, Republic of Korea
| | - Jong-Eun Park
- Department of Mechanical Engineering, The State University of New York Korea, Incheon 21985, Republic of Korea
| | - Jungho Hwang
- Department of Mechanical Engineering, Yonsei University, Seoul 03722, Republic of Korea.
| | - Hyeonjin Eom
- Carbon Neutral Technology R&D Department, Korea Institute of Industrial Technology, Cheonan 31056, Republic of Korea.
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Huang D, Zhang L, Sun S, Li P, Fu Y, Tian R, Lu C. Three‐Dimensional Fluorescent Imaging to Monitor the Dynamic Distribution of Organic Additives in Polymers. ChemistrySelect 2023. [DOI: 10.1002/slct.202202109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Dandan Huang
- State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology Beijing 100029 P. R. China
| | - Lijuan Zhang
- State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology Beijing 100029 P. R. China
| | - Shihao Sun
- Zhengzhou Tobacco Research Institute of CNTC Zhengzhou 450001 China
| | - Peng Li
- Zhengzhou Tobacco Research Institute of CNTC Zhengzhou 450001 China
| | - Yingjie Fu
- Zhengzhou Tobacco Research Institute of CNTC Zhengzhou 450001 China
| | - Rui Tian
- State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology Beijing 100029 P. R. China
| | - Chao Lu
- State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology Beijing 100029 P. R. China
- Green Catalysis Center College of Chemistry Zhengzhou 450001 P. R. China
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Xiong SW, Zou Q, Wang ZG, Qin J, Liu Y, Wei NJ, Jiang MY, Gai JG. Temperature-adjustable F-carbon nanofiber/carbon fiber nanocomposite fibrous masks with excellent comfortability and anti-pathogen functionality. CHEMICAL ENGINEERING JOURNAL (LAUSANNE, SWITZERLAND : 1996) 2022; 432:134160. [PMID: 34931115 PMCID: PMC8673729 DOI: 10.1016/j.cej.2021.134160] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 11/07/2021] [Accepted: 12/10/2021] [Indexed: 06/03/2023]
Abstract
Wearing surgical masks remains the most effective protective measure against COVID-19 before mass vaccination, but insufficient comfortability and low antibacterial/antiviral activities accelerate the replacement frequency of surgical masks, resulting in large amounts of medical waste. To solve this problem, we report new nanofiber membrane masks with outstanding comfortability and anti-pathogen functionality prepared using fluorinated carbon nanofibers/carbon fiber (F-CNFs/CF). This was used to replace commercial polypropylene (PP) nonwovens as the core layer of face masks. The through-plane and in-plane thermal conductivity of commercial PP nonwovens were only 0.12 and 0.20 W/m K, but the F-CNFs/CF nanofiber membranes reached 0.62 and 5.23 W/m K, which represent enhancements of 380% and 2523%, respectively. The surface temperature of the PP surgical masks was 23.9 ℃ when the wearing time was 15 min, while the F-CNFs/CF nanocomposite fibrous masks reached 27.3 ℃, displaying stronger heat dissipation. Moreover, the F-CNFs/CF nanofiber membranes displayed excellent electrical conductivity and produced a high-temperature layer that killed viruses and bacteria in the masks. The surface temperature of the F-CNFs/CF nanocomposite fibrous masks reached 69.2 ℃ after being connected to a portable power source for 60 s. Their antibacterial rates were 97.9% and 98.6% against E. coli and S. aureus, respectively, after being connected to a portable power source for 30 min.
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Affiliation(s)
- Si-Wei Xiong
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu, Sichuan 610065, China
| | - Qian Zou
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu, Sichuan 610065, China
| | - Ze-Gang Wang
- Shandong Chen-Zhong Machinery Co., Ltd, Zibo, Shandong 256400, China
| | - Jun Qin
- Shandong Sun Paper Industry Joint Stock, No. 1 Youyi Road, Yanzhou District, Jining City, Shandong Province, China
| | - Yang Liu
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu, Sichuan 610065, China
| | - Nan-Jun Wei
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu, Sichuan 610065, China
| | - Meng-Ying Jiang
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu, Sichuan 610065, China
| | - Jing-Gang Gai
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu, Sichuan 610065, China
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Wei W, Shim E, Song Y, Pourdeyhimi B. Synthesizing heat transfer factors on thermal bonding structure of mineral added polypropylene spun‐bond. J Appl Polym Sci 2022. [DOI: 10.1002/app.52138] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Wei Wei
- North Carolina State University Wilson College of Textiles Raleigh North Carolina USA
| | - Eunkyoung Shim
- North Carolina State University Wilson College of Textiles Raleigh North Carolina USA
| | - Yu Song
- North Carolina State University Wilson College of Textiles Raleigh North Carolina USA
| | - Behnam Pourdeyhimi
- North Carolina State University Wilson College of Textiles Raleigh North Carolina USA
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Huang Q, He F, Yu J, Zhang J, Du X, Li Q, Wang G, Yu Z, Chen S. Microfluidic spinning-induced heterotypic bead-on-string fibers for dual-cargo release and wound healing. J Mater Chem B 2021; 9:2727-2735. [PMID: 33683250 DOI: 10.1039/d0tb02305a] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The preparation of dual-release pharmaceutical microfibers provides an ideal material for new biomedical applications. We describe a microfluidic spinning method for engineering heterotypic bead-on-string fibers with the ability to carry dual cargos and to deliver on demand. The core of our technology is to combine microfluidic spinning with biomaterial preparation, in which hydrophobic and hydrophilic cargos can be integrated into a bead-on-string microfiber structure. We demonstrate the loading of bovine serum albumin (BSA) in the sodium alginate phase and ibuprofen in the polylactic acid (PLA) phase, respectively. The heterotypic bead-on-string fibers are biocompatible and show hemostatic ability in vivo. These heterotypic bead-on-string fibers are then woven as a skin scaffold and shown to promote wound healing by loading antibacterial and anti-inflammatory cargos.
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Affiliation(s)
- Qiu Huang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Jiangsu Key Laboratory of Fine Chemicals and Functional Polymer Materials, Nanjing Tech University, 30 Puzhu South Road, Nanjing 211816, P. R. China.
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Xiong SW, Fu PG, Zou Q, Chen LY, Jiang MY, Zhang P, Wang ZG, Cui LS, Guo H, Gai JG. Heat Conduction and Antibacterial Hexagonal Boron Nitride/Polypropylene Nanocomposite Fibrous Membranes for Face Masks with Long-Time Wearing Performance. ACS APPLIED MATERIALS & INTERFACES 2021; 13:196-206. [PMID: 33356094 DOI: 10.1021/acsami.0c17800] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Wearing surgical masks is one of the best protective measures to protect humans from viral invasion during the 2019 coronavirus (COVID-19) outbreak. However, wearing surgical masks for extended periods will cause uncomfortable sweltering sense to users and are easy to breed bacteria. Here, we reported a novel fibrous membrane with outstanding comfortability and antibacterial activity prepared by PP ultrafine fiber nonwovens and antibacterial functionalized h-BN nanoparticles (QAC/h-BN). The thermal conductivity of commercial PP nonwovens was only 0.13 W m-1 K-1, but that of the QAC/h-BN/PP nanocomposite fibrous membranes can reach 0.88 W m-1 K-1, an enhancement of 706.5% than commercial PP nonwovens. The surface temperature of commercial PP surgical masks was 31.8 °C when the wearing time was 60 min. In contrast, QAC/h-BN/PP surgical masks can reach 33.6 °C at the same tested time, exhibiting stronger heat dissipation than commercial PP surgical masks. Besides, the antibacterial rates of QAC/h-BN/PP nanocomposite fibrous membranes were 99.3% for E. coli and 96.1% for S. aureus, and their antibacterial mechanism was based on "contact killing" without the release of unfavorable biocides. We think that the QAC/h-BN/PP nanocomposite fibrous membranes could provide better protection to people.
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Affiliation(s)
- Si-Wei Xiong
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu, Sichuan 610065, China
| | - Pei-Gen Fu
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu, Sichuan 610065, China
| | - Qian Zou
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu, Sichuan 610065, China
| | - Li-Ye Chen
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu, Sichuan 610065, China
| | - Meng-Ying Jiang
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu, Sichuan 610065, China
| | - Pan Zhang
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu, Sichuan 610065, China
| | - Ze-Gang Wang
- Shandong Chenzhong Machinery Co., Ltd, No.3 Jingtian Road, Tianzhuang Town, Huantai County, Zibo City, Shandong Province 256402, China
| | - Li-Sheng Cui
- Shandong Chenzhong Machinery Co., Ltd, No.3 Jingtian Road, Tianzhuang Town, Huantai County, Zibo City, Shandong Province 256402, China
| | - Hu Guo
- Shandong HFT Environmental Protection Technology CO., Ltd., Block B1, Chuangzhi Valley, Huantai County, Zibo City, Shandong Province 256400, China
| | - Jing-Gang Gai
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu, Sichuan 610065, China
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