1
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Ma W, Yang Y, Wang W, Qv J, Jia J, Ren X. Fabrication of N-halamine/MWPPy-ZnO hybrids based cellulose nanofibril composite films with improved UV-protective, antibacterial, and biofilm control functions. Int J Biol Macromol 2024; 278:135023. [PMID: 39182887 DOI: 10.1016/j.ijbiomac.2024.135023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 08/06/2024] [Accepted: 08/22/2024] [Indexed: 08/27/2024]
Abstract
The design and fabrication of synergistic hybrid antibacterial materials is a promising approach for achieving effective sterilization while compensating for the deficiency of a single component. Despite being highly effective biocidal components, the poor UV light stability of some N-halamines limits their applications. This study was conducted to address this issue by the rational integration of cyclic N-halamine precursor (PGHAPA) with microwaved zinc oxide (MWPPy-ZnO) nanoparticles via covalent bonds and the preparation of cellulose nanofibrils based antibacterial composite films after chlorination (CNF/MWPPy-ZnO-PGHAPA-Cl). The proposed films offered tight lamellar structure, considerable thermal stability and better mechanical properties. The results from the FT-IR and XPS experiments provided the evidence of chemical reactions among the PGHAPA, MWPPy-ZnO, and CNF film. Notably, the CNF/MWPPy-ZnO-PGHAPA-Cl films showed improved UV stability with a chlorine content of up to 0.16 % after 24 h of irradiation, which was much greater than that of the CNF/PGHAPA-Cl films. Furthermore, the CNF/MWPPy-ZnO-PGHAPA-Cl films displayed rapid bactericidal activity, inactivating all the contacted Staphylococcus aureus and Escherichia coli O157:H7 strains within 5 min, along with prominent biofilm disruption, indicating great potential for daily food packaging applications.
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Affiliation(s)
- Wei Ma
- School of Textile Clothing and Design, Changshu Institute of Technology, Suzhou 215500, Jiangsu, China
| | - Yutong Yang
- School of Textile Clothing and Design, Changshu Institute of Technology, Suzhou 215500, Jiangsu, China
| | - Wei Wang
- School of Textile Clothing and Design, Changshu Institute of Technology, Suzhou 215500, Jiangsu, China
| | - Jing Qv
- School of Textile Clothing and Design, Changshu Institute of Technology, Suzhou 215500, Jiangsu, China
| | - Jiru Jia
- School of Textile Clothing and Design, Changshu Institute of Technology, Suzhou 215500, Jiangsu, China
| | - Xuehong Ren
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Key Laboratory of Textile Fiber and Products, Ministry of Education, School of Textile Science and Engineering, Wuhan Textile University, Wuhan, Hubei 430200, China.
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2
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Dou Y, Wang N, Zhang S, Sun C, Chen J, Qu Z, Cui A, Li J. Electroactive nanofibrous membrane with antibacterial and deodorizing properties for air filtration. JOURNAL OF HAZARDOUS MATERIALS 2024; 469:134064. [PMID: 38513444 DOI: 10.1016/j.jhazmat.2024.134064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 03/05/2024] [Accepted: 03/16/2024] [Indexed: 03/23/2024]
Abstract
Water vapor from respiration can severely accelerate the charge dissipation of the face mask, reducing filtration efficiency. Moreover, the foul odor from prolonged mask wear tends to make people remove their masks, leading to the risk of infection. In this study, an electro-blown spinning electroactive nanofibrous membrane (Zn/CB@PAN) with antibacterial and deodorization properties was prepared by adding zinc (Zn) and carbon black (CB) nanoparticles to the polyacrylonitrile (PAN) nanofibers, respectively. The filtration efficiency of Zn/CB@PAN for PM0.3 was > 99% and could still maintain excellent durability within 4 h in a high-humidity environment (25 ℃ and RH = 95%). Moreover, the bacterial interception rate of the Zn/CB@PAN could reach 99.99%, and it can kill intercepted bacteria. In addition, the deodorization rate of Zn/CB@PAN in the moist state for acetic acid was 93.75% and ammonia was 95.23%, respectively. The excellent filtering, antibacterial, and deodorizing performance of Zn/CB@PAN can be attributed to the synergistic effect of breath-induced Zn/CB galvanic couples' electroactivity, released metal ions, and generated reactive oxygen species. The developed Zn/CB@PAN could capture and kill airborne environmental pathogens under humid environments and deodorize odors from prolonged wear, holding promise for broad applications as personal protective masks.
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Affiliation(s)
- Yuejie Dou
- College of Textiles and Clothing, the Affiliated Hospital of Qingdao University, Qingdao University, Qingdao 266071, China
| | - Na Wang
- College of Textiles and Clothing, the Affiliated Hospital of Qingdao University, Qingdao University, Qingdao 266071, China
| | - Shaohua Zhang
- College of Textiles and Clothing, the Affiliated Hospital of Qingdao University, Qingdao University, Qingdao 266071, China
| | - Caihong Sun
- Yantai Affiliated Hospital of Binzhou Medical University, Yantai 264100, China
| | - Jinmiao Chen
- College of Textiles and Clothing, the Affiliated Hospital of Qingdao University, Qingdao University, Qingdao 266071, China
| | - Zhenghai Qu
- College of Textiles and Clothing, the Affiliated Hospital of Qingdao University, Qingdao University, Qingdao 266071, China.
| | - Aihua Cui
- Weifang Yingke Marine Biological Material Co., Ltd, Weifang 262600, China
| | - Jiwei Li
- College of Textiles and Clothing, the Affiliated Hospital of Qingdao University, Qingdao University, Qingdao 266071, China; Industrial Research Institute of Nonwovens and Technical Textiles, Shandong Engineering Research Center for Specialty Nonwoven Materials, Qingdao 266071, China.
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3
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Yang Y, Li X, Zhou Z, Qiu Q, Chen W, Huang J, Cai W, Qin X, Lai Y. Ultrathin, ultralight dual-scale fibrous networks with high-infrared transmittance for high-performance, comfortable and sustainable PM 0.3 filter. Nat Commun 2024; 15:1586. [PMID: 38383519 PMCID: PMC10881466 DOI: 10.1038/s41467-024-45833-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 02/05/2024] [Indexed: 02/23/2024] Open
Abstract
Highly permeable particulate matter (PM) can carry various bacteria, viruses and toxics and pose a serious threat to public health. Nevertheless, current respirators typically sacrifice their thickness and base weight for high-performance filtration, which inevitably causes wearing discomfort and significant consumption of raw materials. Here, we show a facile yet massive splitting eletrospinning strategy to prepare an ultrathin, ultralight and radiative cooling dual-scale fiber membrane with about 80% infrared transmittance for high-protective, comfortable and sustainable air filter. By tailoring antibacterial surfactant-triggered splitting of charged jets, the dual-scale fibrous filter consisting of continuous nanofibers (44 ± 12 nm) and submicron-fibers (159 ± 32 nm) is formed. It presents ultralow thickness (1.49 μm) and base weight (0.57 g m-2) but superior protective performances (about 99.95% PM0.3 removal, durable antibacterial ability) and wearing comfort of low air resistance, high heat dissipation and moisture permeability. Moreover, the ultralight filter can save over 97% polymers than commercial N95 respirator, enabling itself to be sustainable and economical. This work paves the way for designing advanced and sustainable protective materials.
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Affiliation(s)
- Yuchen Yang
- Qingyuan Innovation Laboratory, Quanzhou, 362801, P. R. China
- College of Chemical Engineering, Fuzhou University, Fuzhou, 350116, P. R. China
- Key Laboratory of Textile Science & Technology of Ministry of Education, College of Textiles, Donghua University, Shanghai, 201620, P. R. China
| | - Xiangshun Li
- Key Laboratory of Textile Science & Technology of Ministry of Education, College of Textiles, Donghua University, Shanghai, 201620, P. R. China
| | - Zhiyong Zhou
- Key Laboratory of Textile Science & Technology of Ministry of Education, College of Textiles, Donghua University, Shanghai, 201620, P. R. China
| | - Qiaohua Qiu
- Key Laboratory of Textile Science & Technology of Ministry of Education, College of Textiles, Donghua University, Shanghai, 201620, P. R. China
- College of Textile Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, P. R. China
| | - Wenjing Chen
- Key Laboratory of Textile Science & Technology of Ministry of Education, College of Textiles, Donghua University, Shanghai, 201620, P. R. China
| | - Jianying Huang
- Qingyuan Innovation Laboratory, Quanzhou, 362801, P. R. China
- College of Chemical Engineering, Fuzhou University, Fuzhou, 350116, P. R. China
| | - Weilong Cai
- Qingyuan Innovation Laboratory, Quanzhou, 362801, P. R. China
- College of Chemical Engineering, Fuzhou University, Fuzhou, 350116, P. R. China
| | - Xiaohong Qin
- Key Laboratory of Textile Science & Technology of Ministry of Education, College of Textiles, Donghua University, Shanghai, 201620, P. R. China.
| | - Yuekun Lai
- Qingyuan Innovation Laboratory, Quanzhou, 362801, P. R. China.
- College of Chemical Engineering, Fuzhou University, Fuzhou, 350116, P. R. China.
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4
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Dai L, Yuan J, Xu J, Lou J, Fan X. Reversible bacteria-killing and bacteria-releasing cotton fabric with anti-bacteria adhesion ability for potential sustainable protective clothing applications. Int J Biol Macromol 2023; 253:126580. [PMID: 37659495 DOI: 10.1016/j.ijbiomac.2023.126580] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 08/17/2023] [Accepted: 08/26/2023] [Indexed: 09/04/2023]
Abstract
Multifunctional antibacterial surfaces are playing an essential role in various areas. Smart antibacterial materials equipped with switchable "bacteria-killing" and "bacteria-releasing" abilities have been created by scientists. However, most of them are either biologically incompatible, or complex fabricating procedures, or cannot prevent themselves from being attached by bacteria. In this work, a double-layer smart antibacterial surface was created easily by simple surface initiate atom transfer radical polymerization: the upper layer PSBMA provides anti-bacteria adhesion capacity, the NCl bond can show bacteria-killing ability and the under layer PNIPAM can exhibit bacteria-releasing property. Remarkably, the NCl bond can interconvert with the NH bond easily, which allows switching between bacteria-killing and bacteria-releasing. As a result, the functional cotton fabrics can resist about 99.66 % of bacteria attaching, kill nearly 100 % of attached bacteria after 5 min contacting and release about 99.02 % of the formerly attached bacteria. Furthermore, the functional cotton fabric kept excellent anti-bacteria adhesion ability (about 99.27 %) and bacteria-releasing capacity (about 98.30 %) after 9 cycles of re-chlorination. In general, a reversible "bacteria-killing" and "bacteria-releasing" cotton fabric was fabricated with well anti-bacteria adhesion capacity in a simple way, and this smart multifunctional cotton fabric shows a great potential application in reusable protective clothing.
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Affiliation(s)
- Li Dai
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, Jiangnan University, Wuxi, Jiangsu, PR China
| | - Jiugang Yuan
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, Jiangnan University, Wuxi, Jiangsu, PR China
| | - Jin Xu
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, Jiangnan University, Wuxi, Jiangsu, PR China
| | - Jiangfei Lou
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, Jiangnan University, Wuxi, Jiangsu, PR China
| | - Xuerong Fan
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, Jiangnan University, Wuxi, Jiangsu, PR China.
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5
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Zhang S, Wang N, Zhang Q, Guan R, Qu Z, Sun L, Li J. The Rise of Electroactive Materials in Face Masks for Preventing Virus Infections. ACS APPLIED MATERIALS & INTERFACES 2023; 15:48839-48854. [PMID: 37815875 DOI: 10.1021/acsami.3c10465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/12/2023]
Abstract
Air-transmitted pathogens may cause severe epidemics, posing considerable threats to public health and safety. Wearing a face mask is one of the most effective ways to prevent respiratory virus infection transmission. Especially since the new coronavirus pandemic, electroactive materials have received much attention in antiviral face masks due to their highly efficient antiviral capabilities, flexible structural design, excellent sustainability, and outstanding safety. This review first introduces the mechanism for preventing viral infection or the inactivation of viruses by electroactive materials. Then, the applications of electrostatic-, conductive-, triboelectric-, and microbattery-based materials in face masks are described in detail. Finally, the problems of various electroactive antiviral materials are summarized, and the prospects for their future development directions are discussed. In conclusion, electroactive materials have attracted great attention for antiviral face masks, and this review will provide a reference for materials scientists and engineers in antiviral materials and interfaces.
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Affiliation(s)
- Shaohua Zhang
- College of Textiles and Clothing, the Affiliated Hospital of Qingdao University, Qingdao University, Qingdao 266071, People's Republic of China
| | - Na Wang
- College of Textiles and Clothing, the Affiliated Hospital of Qingdao University, Qingdao University, Qingdao 266071, People's Republic of China
- Industrial Research Institute of Nonwovens and Technical Textiles, Shandong Center for Engineered Nonwovens, Qingdao 266071, People's Republic of China
| | - Qian Zhang
- Department of Respirology, Qingdao Women and Children's Hospital, Qingdao 266034, People's Republic of China
| | - Renzheng Guan
- College of Textiles and Clothing, the Affiliated Hospital of Qingdao University, Qingdao University, Qingdao 266071, People's Republic of China
| | - Zhenghai Qu
- College of Textiles and Clothing, the Affiliated Hospital of Qingdao University, Qingdao University, Qingdao 266071, People's Republic of China
| | - Lirong Sun
- College of Textiles and Clothing, the Affiliated Hospital of Qingdao University, Qingdao University, Qingdao 266071, People's Republic of China
| | - Jiwei Li
- College of Textiles and Clothing, the Affiliated Hospital of Qingdao University, Qingdao University, Qingdao 266071, People's Republic of China
- Industrial Research Institute of Nonwovens and Technical Textiles, Shandong Center for Engineered Nonwovens, Qingdao 266071, People's Republic of China
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6
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Zhu G, Li X, Li XP, Wang A, Li T, Zhu X, Tang D, Zhu J, He X, Li H, Li S, Zhang Y, Wang B, Zhang S, Xu H. Nanopatterned Electroactive Polylactic Acid Nanofibrous MOFilters for Efficient PM 0.3 Filtration and Bacterial Inhibition. ACS APPLIED MATERIALS & INTERFACES 2023; 15:47145-47157. [PMID: 37783451 DOI: 10.1021/acsami.3c11941] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
Biodegradable polylactic acid (PLA) nanofibrous membranes (NFMs) hold great potential to address the increasing airborne particulate matter (PM) and dramatic accumulation of plastic/microplastic pollution. However, the field of PLA NFM-based filters is still in its infancy, frequently dwarfed by the bottlenecks regarding relatively low surface activity, poor electroactivity, and insufficient PM capturing mechanisms. This effort discloses a microwave-assisted approach to minute-level synthesis of dielectric ZIF-8 nanocrystals with high specific surface area (over 1012 m2/g) and ultrasmall size (∼240 nm), which were intimately anchored onto PLA nanofibers (PLA@ZIF-8) by a combined "electrospinning-electrospray" strategy. This endowed the PLA@ZIF-8 NFMs with largely increased electroactivity in terms of elevated dielectric coefficient (an increase of 202%), surface potential (up to 5.8 kV), and triboelectric properties (output voltage of 30.8 V at 10 N, 0.5 Hz). Given the profound control over morphology and electroactivity, the PLA@ZIF-8 NFMs exhibited efficient filtration of PM0.3 (97.1%, 85 L/min) with a decreased air resistance (592.5 Pa), surpassing that of the pure PLA counterpart (88.4%, 650.9 Pa). This was essentially ascribed to realization of multiple filtration mechanisms for PLA@ZIF-8 NFMs, including enhanced physical interception, polar interactions, and electrostatic adsorption, and the unique self-charging function triggered by airflow vibrations. Moreover, perfect antibacterial performance was achieved for PLA@ZIF-8, showing ultrahigh inhibition rates of 99.9 and 100% against E. coli and S. aureus, respectively. The proposed hierarchical structuring strategy, offering the multifunction integration unattainable with conventional methods, may facilitate the development of biodegradable long-term air filters.
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Affiliation(s)
- Guiying Zhu
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, China
| | - Xinyu Li
- School of Safety Engineering, China University of Mining and Technology, Xuzhou 221116, China
| | - Xiao-Peng Li
- State Key Laboratory of NBC Protection for Civilian, Institute of Chemical Defense, Beijing 100191, China
| | - An Wang
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, China
| | - Tian Li
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, China
| | - Xuanjin Zhu
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, China
| | - Daoyuan Tang
- Anhui Sentai WPC Group Share Co., Ltd., Guangde 242299, China
| | - Jintuo Zhu
- School of Safety Engineering, China University of Mining and Technology, Xuzhou 221116, China
- Jiangsu Engineering Research Center of Dust Control and Occupational Protection, Xuzhou 221008, China
| | - Xinjian He
- School of Safety Engineering, China University of Mining and Technology, Xuzhou 221116, China
- Jiangsu Engineering Research Center of Dust Control and Occupational Protection, Xuzhou 221008, China
| | - Heguo Li
- State Key Laboratory of NBC Protection for Civilian, Institute of Chemical Defense, Beijing 100191, China
| | - Shihang Li
- Jiangsu Key Laboratory of Coal-based Greenhouse Gas Control and Utilization, Carbon Neutrality Institute, China University of Mining and Technology, Xuzhou 221008, China
- Jiangsu Engineering Research Center of Dust Control and Occupational Protection, Xuzhou 221008, China
| | - Yong Zhang
- Anhui Sentai WPC Group Share Co., Ltd., Guangde 242299, China
| | - Bin Wang
- Anhui Sentai WPC Group Share Co., Ltd., Guangde 242299, China
| | - Shenghui Zhang
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, China
| | - Huan Xu
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, China
- Jiangsu Engineering Research Center of Dust Control and Occupational Protection, Xuzhou 221008, China
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7
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Parcheta M, Sobiesiak M. Preparation and Functionalization of Polymers with Antibacterial Properties-Review of the Recent Developments. MATERIALS (BASEL, SWITZERLAND) 2023; 16:4411. [PMID: 37374596 PMCID: PMC10304131 DOI: 10.3390/ma16124411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 06/07/2023] [Accepted: 06/13/2023] [Indexed: 06/29/2023]
Abstract
The presence of antibiotic-resistant bacteria in our environment is a matter of growing concern. Consumption of contaminated drinking water or contaminated fruit or vegetables can provoke ailments and even diseases, mainly in the digestive system. In this work, we present the latest data on the ability to remove bacteria from potable water and wastewater. The article discusses the mechanisms of the antibacterial activity of polymers, consisting of the electrostatic interaction between bacterial cells and the surface of natural and synthetic polymers functionalized with metal cations (polydopamine modified with silver nanoparticles, starch modified with quaternary ammonium or halogenated benzene). The synergistic effect of polymers (N-alkylaminated chitosan, silver doped polyoxometalate, modified poly(aspartic acid)) with antibiotics has also been described, allowing for precise targeting of drugs to infected cells as a preventive measure against the excessive spread of antibiotics, leading to drug resistance among bacteria. Cationic polymers, polymers obtained from essential oils (EOs), or natural polymers modified with organic acids are promising materials in the removal of harmful bacteria. Antimicrobial polymers are successfully used as biocides due to their acceptable toxicity, low production costs, chemical stability, and high adsorption capacity thanks to multi-point attachment to microorganisms. New achievements in the field of polymer surface modification in order to impart antimicrobial properties were summarized.
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Affiliation(s)
- Monika Parcheta
- Department of Polymer Chemistry, Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie-Sklodowska University in Lublin, Maria Curie-Skłodowskiej sq 3., 20 031 Lublin, Poland
| | - Magdalena Sobiesiak
- Department of Polymer Chemistry, Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie-Sklodowska University in Lublin, Maria Curie-Skłodowskiej sq 3., 20 031 Lublin, Poland
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Cao Y, Wang S, Su Y, Zhang J, Song H, Wang Y, Chen S. Rapid and persistent bactericidal cotton fabrics finished facilely with reactive N-halamine. Int J Biol Macromol 2023; 240:124495. [PMID: 37076078 DOI: 10.1016/j.ijbiomac.2023.124495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 04/12/2023] [Accepted: 04/13/2023] [Indexed: 04/21/2023]
Abstract
Cotton fabrics (CFs) with persistent and rapid bactericidal capability would be of great significance for daily health protection because CFs are very suitable for the growth and reproduction of microorganisms. Herein, we developed a reactive N-halamine compound, 3-(3-hydroxypropyl diisocyanate)-5,5-dimethylhydantoin (IPDMH), that can be covalently bound to a CF to generate a bactericidal CF after chlorination (CF-DMF-Cl) without damaging its surface morphology. The antibacterial rates of CF-DMF-Cl (0.5 wt% IPDMH) against the gram-negative bacterium Escherichia coli (E. coli) and gram-positive bacterium Staphylococcus aureus (S. aureus) reached 99.99 % and were maintained at 90 % (against E. coli) and 93.5 % (against S. aureus) after 50 laundering cycles. The combination of contact killing and release killing mechanisms by CF-PDM-Cl leads to its rapid and persistent bactericidal activity. In addition, CF-DMF-Cl exhibits adequate biocompatibility, well-maintained mechanical properties, air/water vapor permeability and whiteness. Therefore, the proposed CF-DMF-Cl has great potential applications as a bactericidal CF for use in medical textiles, sportswear, home dressings, and so on.
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Affiliation(s)
- Yihong Cao
- Nanshan District Key Lab for Biopolymers and Safety Evaluation, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, PR China; Health MY (Shenzhen) Technology Co., Ltd, Shenzhen 518060, PR China
| | - Shu Wang
- Nanshan District Key Lab for Biopolymers and Safety Evaluation, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, PR China
| | - Yong Su
- Nanshan District Key Lab for Biopolymers and Safety Evaluation, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, PR China; Shenzhen Tianding New Materials Co., Ltd, Shenzhen 518057, PR China
| | - Jianxiang Zhang
- Nanshan District Key Lab for Biopolymers and Safety Evaluation, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, PR China; Advance Denim Co., Ltd, Foshan 528306, PR China
| | - Haibo Song
- Nanshan District Key Lab for Biopolymers and Safety Evaluation, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, PR China; Shenzhen Purcotton Technology Co. Ltd, Shenzhen 518109, China
| | - Yuanfeng Wang
- Nanshan District Key Lab for Biopolymers and Safety Evaluation, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, PR China.
| | - Shiguo Chen
- Nanshan District Key Lab for Biopolymers and Safety Evaluation, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, PR China; Health MY (Shenzhen) Technology Co., Ltd, Shenzhen 518060, PR China.
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9
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Zhang Q, Cui J, Zhao S, Zhang G, Gao A, Yan Y. Development of Electromagnetic-Wave-Shielding Polyvinylidene Fluoride-Ti 3C 2T x MXene-Carbon Nanotube Composites by Improving Impedance Matching and Conductivity. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:417. [PMID: 36770378 PMCID: PMC9921545 DOI: 10.3390/nano13030417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 01/07/2023] [Accepted: 01/17/2023] [Indexed: 06/18/2023]
Abstract
Absorption-dominated electromagnetic interference (EMI) shielding is attained by improving impedance matching and conductivity through structural design. Polyvinylidene fluoride (PVDF)-Ti3C2Tx MXene-single-walled carbon nanotubes (SWCNTs) composites with layered heterogeneous conductive fillers and segregated structures were prepared through electrostatic flocculation and hot pressing of the PVDF composite microsphere-coated MXene and SWCNTs in a layer-by-layer fashion. Results suggest that the heterogeneous fillers improve impedance matching and layered coating, and hot compression allows the MXene and SWCNTs to form a continuous conducting network at the PVDF interface, thereby conferring excellent conductivity to the composite. The PVDF-MXene-SWCNTs composite showed a conductivity of 2.75 S cm-1 at 2.5% MXene and 1% SWCNTs. The EMI shielding efficiency (SE) and contribution from absorption loss to the total EMI SE of PVDF-MXene-SWCNTs were 46.1 dB and 85.7%, respectively. Furthermore, the PVDF-MXene-SWCNTs composite exhibited excellent dielectric losses and impedance matching. Therefore, the layered heteroconductive fillers in a segregated structure optimize impedance matching, provide excellent conductivity, and improve absorption-dominated electromagnetic shielding.
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Affiliation(s)
- Qimei Zhang
- Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber-Plastics, School of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
- School of Materials and Environmental Engineering, Chizhou University, Chizhou 247000, China
| | - Jian Cui
- Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber-Plastics, School of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Shuai Zhao
- Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber-Plastics, School of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Guangfa Zhang
- Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber-Plastics, School of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Ailin Gao
- Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber-Plastics, School of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Yehai Yan
- Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber-Plastics, School of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
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