1
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Liu XC, Tian LY, Bao ZL, Zhang YS, Qian PF, Geng WH, Zhang D, Zhu Q, Geng HZ. Caffeic-Acid-Functionalized MWCNTs and PEDOT:PSS Formed Composite Flexible Films with "Reinforced Concrete" Structure for Electrical Heating and EMI Shielding. ACS APPLIED MATERIALS & INTERFACES 2024; 16:22391-22402. [PMID: 38647046 DOI: 10.1021/acsami.4c01373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
Nowadays, flexible multifunctional composites are attracting much attention and are practically being used in various emerging electronic devices. However, most composites suffer from the disadvantages of high loadings of conductive fillers, complicated preparation processes, and low energy conversion efficiency. In this article, Caffeic acid-modified multiwalled carbon nanotubes (C-MWCNTs)/poly(3,4-ethylene dioxythiophene):polystyrene sulfonic acid (PEDOT:PSS)/polyimide (PI) composite films (CPFs) were prepared using a simple layer-by-layer deposition method. The "reinforced concrete" structure of the C-MWCNTs/PEDOT:PSS layer ensures high electrical conductivity of the film, while the PI layer provides excellent mechanical properties (72.69 MPa). The composite film exhibits excellent electrothermal response and thermal stability up to approximately 125 °C at 5 V. In addition, the good conductivity of the film provides its electromagnetic shielding effectiveness (32.69 dB). With these advantages, we expect that flexible CPFs will be widely utilized in wearable devices, electromagnetic interference (EMI) shielding applications, and thermal management of personal or electronic devices.
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Affiliation(s)
- Xuan-Chen Liu
- Tianjin Key Laboratory of Advanced Fibers and Energy Storage, School of Material Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Lu-Yao Tian
- Tianjin Key Laboratory of Advanced Fibers and Energy Storage, School of Material Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Ze-Long Bao
- Tianjin Key Laboratory of Advanced Fibers and Energy Storage, School of Material Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Yi-Song Zhang
- Tianjin Key Laboratory of Advanced Fibers and Energy Storage, School of Material Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Peng-Fei Qian
- Tianjin Key Laboratory of Advanced Fibers and Energy Storage, School of Material Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Wen-Hao Geng
- Tianji Zhencai Technology (Hebei) Co., Ltd., Cangzhou 061000, China
| | - Di Zhang
- Cangzhou Institute of Tiangong University, Cangzhou 061000, China
| | - Qingxia Zhu
- Tianjin Key Laboratory of Advanced Fibers and Energy Storage, School of Material Science and Engineering, Tiangong University, Tianjin 300387, China
- Tianji Zhencai Technology (Hebei) Co., Ltd., Cangzhou 061000, China
| | - Hong-Zhang Geng
- Tianjin Key Laboratory of Advanced Fibers and Energy Storage, School of Material Science and Engineering, Tiangong University, Tianjin 300387, China
- Tianji Zhencai Technology (Hebei) Co., Ltd., Cangzhou 061000, China
- Cangzhou Institute of Tiangong University, Cangzhou 061000, China
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2
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Zhang J, Wang M, Yuan H, Zeng XF, Wang JX, Le Y. Accelerated Wound Healing by Electrospun Multifunctional Fibers with Self-Powered Performance. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:9134-9143. [PMID: 38636482 DOI: 10.1021/acs.langmuir.4c00545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/20/2024]
Abstract
Wound healing has been a persistent clinical challenge for a long time. Electrical stimulation is an effective therapy with the potential to accelerate wound healing. In this work, the self-powered electrospun nanofiber membranes (triples) were constructed as multifunctional wound dressings with electrical stimulation and biochemical capabilities. Triple was composed of a hydrolyzable inner layer with antiseptic and hemostatic chitosan, a hydrophilic core layer loaded with conductive AgNWs, and a hydrophobic outer layer fabricated by self-powered PVDF. Triple exhibited presentable wettability and acceptable moisture permeability. Electrical performance tests indicated that triple can transmit electrical signals formed by the piezoelectric effect to the wound. High antibacterial activities were observed for triple against Staphylococcus aureus, Escherichia coli, and Pseudomonas aeruginosa, with inhibition rates of 96.52, 98.63, and 97.26%, respectively. In vitro cell assays demonstrated that triple cells showed satisfactory proliferation and mobility. A whole blood clotting test showed that triple can enhance hemostasis. The innovative self-powered multifunctional fibers presented in this work offer a promising approach to addressing complications and expediting the promotion of chronic wound healing.
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Affiliation(s)
- Jiaqi Zhang
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, PR China
- Research Center of the Ministry of Education for High Gravity Engineering and Technology, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Manting Wang
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, PR China
- Research Center of the Ministry of Education for High Gravity Engineering and Technology, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Hua Yuan
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, PR China
- Research Center of the Ministry of Education for High Gravity Engineering and Technology, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Xiao-Fei Zeng
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, PR China
- Research Center of the Ministry of Education for High Gravity Engineering and Technology, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Jie-Xin Wang
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, PR China
- Research Center of the Ministry of Education for High Gravity Engineering and Technology, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Yuan Le
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, PR China
- Research Center of the Ministry of Education for High Gravity Engineering and Technology, Beijing University of Chemical Technology, Beijing 100029, PR China
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3
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Lyu B, Guo Z, Gao D, Zhou Y, Guo S, Zhu J, Ma J. Ultralight Flexible Collagen Fiber Based Aerogels Derived from Leather Solid Waste for High Electromagnetic Interference Shielding. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:9215-9223. [PMID: 38635343 DOI: 10.1021/acs.langmuir.4c00611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/20/2024]
Abstract
Designing and developing high-performance shielding materials against electromagnetic interference is of utmost importance due to the rapid advancement of wireless telecommunication technologies. Such materials hold both fundamental and technological significance. A three-stage process is presented for creating ultralight, flexible aerogels from biomass to shield against electromagnetic interference. Collagen fibers sourced from leather solid waste are used for: (i) freeze-drying preparation of collagen fibers/poly(vinyl alcohol) (PVA) aerogels, (ii) adsorption of silver nanowires (AgNWs) onto collagen fiber/PVA aerogels, and (iii) Hydrophobic modification of collagen fiber/PVA/AgNWs aerogels with 1H, 1H, 2H, 2H-perfluorodecyltriethoxysilane (POTS). Scanning electron microscopy studies reveal that an interweaving of AgNWs and collagen fiber/PVA porous network has formed a conductive network, exhibiting an electrical conductivity of 103 S·m-1. The electromagnetic interference shielding effectiveness reached more than 62 dB, while the density was merely 5.8 mg/cm3. The collagen fiber/PVA/AgNWs/POTS aerogel displayed an even better electromagnetic shielding efficiency of 73 dB and water contact angle of 147°. The study results emphasize the distinctive capacity of leather solid waste to generate cost-effective, ecofriendly, and highly efficient electromagnetic interference shielding materials.
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Affiliation(s)
- Bin Lyu
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
- National Demonstration Center for Experimental Light Chemistry and Engineering Education, Shaanxi University of Science &Technology, Xi'an 710021, China
- Xi'an Key Laboratory of Green Chemicals and Functional Materials, Xi'an 710021, China
| | - Zhuo Guo
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
- National Demonstration Center for Experimental Light Chemistry and Engineering Education, Shaanxi University of Science &Technology, Xi'an 710021, China
- Xi'an Key Laboratory of Green Chemicals and Functional Materials, Xi'an 710021, China
| | - Dangge Gao
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
- National Demonstration Center for Experimental Light Chemistry and Engineering Education, Shaanxi University of Science &Technology, Xi'an 710021, China
- Xi'an Key Laboratory of Green Chemicals and Functional Materials, Xi'an 710021, China
| | - Yingying Zhou
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
- National Demonstration Center for Experimental Light Chemistry and Engineering Education, Shaanxi University of Science &Technology, Xi'an 710021, China
- Xi'an Key Laboratory of Green Chemicals and Functional Materials, Xi'an 710021, China
| | - Shihao Guo
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
- Xi'an Key Laboratory of Green Chemicals and Functional Materials, Xi'an 710021, China
| | - Jiamin Zhu
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
- National Demonstration Center for Experimental Light Chemistry and Engineering Education, Shaanxi University of Science &Technology, Xi'an 710021, China
- Xi'an Key Laboratory of Green Chemicals and Functional Materials, Xi'an 710021, China
| | - Jianzhong Ma
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
- National Demonstration Center for Experimental Light Chemistry and Engineering Education, Shaanxi University of Science &Technology, Xi'an 710021, China
- Xi'an Key Laboratory of Green Chemicals and Functional Materials, Xi'an 710021, China
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4
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Guan X, Tan S, Wang L, Zhao Y, Ji G. Electronic Modulation Strategy for Mass-Producible Ultrastrong Multifunctional Biomass-Based Fiber Aerogel Devices: Interfacial Bridging. ACS NANO 2023; 17:20525-20536. [PMID: 37815393 DOI: 10.1021/acsnano.3c07300] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/11/2023]
Abstract
The emergence of green flexible aerogel electronics based on natural materials is expected to solve part of the global environmental and energy crisis. However, it is still challenging to achieve large-scale production and multifunctional stable applications of natural biomass fiber aerogel (BFA) materials. Herein, we exploit the interfacial bridging between the flower-type titanium dioxide nanoarray (FTNA) and natural fiber substrates to modulate the electronic structure and loss mechanism to achieve multifunctional properties. Specifically, the fibrous substrate with wrinkled features induces lattice strain in titania through precise interfacial bridging, effectively improving the intrinsic properties of the BFA materials. This interfacial bridging regulation strategy is also confirmed by X-ray absorption fine structure spectroscopy (XAS). More importantly, the construction of BFA products for different macroscopic and multifunctional applications through simple processing methods will facilitate the transition from natural materials to multifunctional flexible electronics. Therefore, the as-prepared blanket-type BFA (TCBFA) has good mechanical properties, electromagnetic protection properties, thermal stealth properties, high-temperature flame retardancy, and UV resistance. Meanwhile, the membrane-type (TCBFAM) multifunctional wearable fiber aerogel device exhibits superior flexibility, efficient Joule heating performance, and a smart response. This regulation strategy provides another concept for the design and innovation of green multifunctional fiber-integrated aerogels.
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Affiliation(s)
- Xiaomeng Guan
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P. R. China
| | - Shujuan Tan
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P. R. China
| | - Luqi Wang
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P. R. China
| | - Yue Zhao
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P. R. China
| | - Guangbin Ji
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P. R. China
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5
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Pei Y, Yang W, Tang K, Kaplan DL. Collagen processing with mesoscale aggregates as templates and building blocks. Biotechnol Adv 2023; 63:108099. [PMID: 36649798 DOI: 10.1016/j.biotechadv.2023.108099] [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: 11/03/2022] [Revised: 01/11/2023] [Accepted: 01/11/2023] [Indexed: 01/15/2023]
Abstract
Collagen presents a well-organized hierarchical multilevel structure. Microfibers, fibers, and fiber bundles are the aggregates of natural collagen; which achieve an ideal balance of mechanical strength and toughness at the mesoscopic scale for biological tissue. These mesostructured aggregates of collagen isolated from biological tissues retain these inherent organizational features to enable their use as building blocks for constructing new collagen materials with ideal mechanical performance, thermal and dimensional stability. This strategy is distinct from the more common bottom-up or molecular-level design and assembly approach to generating collagen materials. The present review introduces the hierarchical structure of biological collagen with a focus on mesostructural features. Isolation strategies for these collagen aggregates (CAs) are summarized. Recent progress in the use of these mesostructural components for the construction of new collagen materials with emerging applications is reviewed, including in catalysis, environmental applications, biomedicine, food packaging, electrical energy storage, and flexible sensors. Finally, challenges and prospects are assessed for controllable production of CAs as well as material designs.
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Affiliation(s)
- Ying Pei
- College of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China.
| | - Wen Yang
- Institute of Physics, Henan Academy of Sciences, Zhengzhou 450046, China
| | - Keyong Tang
- College of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China.
| | - David L Kaplan
- Biomedical Engineering, Tufts University, MA 02155, United States
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6
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Pasha A, El-Rehim AA, Ali AM, Srinivasamurthy K, Manjunatha S, Wang S, Angadi V J. High performance EMI shielding applications of Co0.5Ni0.5CexSmyFe2-x-yO4 nanocomposite thin films. CERAMICS INTERNATIONAL 2023; 49:2224-2235. [DOI: 10.1016/j.ceramint.2022.09.189] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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7
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Kim SC, Byun H. Development of ultra-thin radiation-shielding paper through nanofiber modeling of morpho butterfly wing structure. Sci Rep 2022; 12:22532. [PMID: 36581765 PMCID: PMC9798361 DOI: 10.1038/s41598-022-27174-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Accepted: 12/27/2022] [Indexed: 12/30/2022] Open
Abstract
In medical institutions, radiation shielding is an effective strategy to protect medical personnel and patients from exposure. Reducing the weight of the shield worn by medical personnel in the radiation generating area plays a key role in improving their productivity and mobility. In this study, a new lightweight radiation shield was developed by electrospinning a polymer-tungsten composite material to produce nanofibers with a multi-layered thin-film structure similar to that of a morpho butterfly wing. The fabricated shield was in the form of 0.1 mm thick flexible shielding paper. The multi-layer structure of the thin shielding paper was obtained through nanofiber pattern formation via electrospinning a dispersion of tungsten particles. At 0.1 mm thickness, the paper's shielding rate was 64.88% at 60 keV. Furthermore, at 0.3 mm thick and arranged in a laminated structure, the shielding rate was 90.10% and the lead equivalent was 0.296 mmPb. When used as an apron material, the weight can be reduced by 45% compared to existing lead products. In addition, the material is highly processable and can be used to manufacture various flexible products, such as hats, gloves, underwear, and scarves used in medical institutions.
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Affiliation(s)
- Seon-Chil Kim
- grid.412091.f0000 0001 0669 3109Department of Biomedical Engineering, Keimyung University School of Medicine, Daegu, Korea
| | - Hongsik Byun
- grid.412091.f0000 0001 0669 3109Department of Chemical Engineering, Keimyung University, Daegu, Korea
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8
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Wu B, Liu R, Yang Y, Zhu H, Yu Y, Huang J, Li Y. Asymmetrically structured polyvinylidene fluoride composite for directional high absorbed electromagnetic interference shielding. J Appl Polym Sci 2022. [DOI: 10.1002/app.53340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Bozhen Wu
- College of Materials Science and Engineering Zhejiang University of Technology Hangzhou China
| | - Renrong Liu
- College of Materials Science and Engineering Zhejiang University of Technology Hangzhou China
| | - Yuhao Yang
- College of Materials Science and Engineering Zhejiang University of Technology Hangzhou China
| | - Honghao Zhu
- College of Materials Science and Engineering Zhejiang University of Technology Hangzhou China
| | - Yujing Yu
- College of Materials Science and Engineering Zhejiang University of Technology Hangzhou China
| | - Jiang Huang
- College of Materials Science and Engineering Zhejiang University of Technology Hangzhou China
| | - Yulin Li
- Key Laboratory for Ultrafine Materials of Ministry of Education, Engineering Research Center for Biomedical Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry East China University of Science and Technology Shanghai China
- Wenzhou Institute of Shanghai University Wenzhou China
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9
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Wu D, Cheng X, Zhang T, Gao H. Multifunctional
MXene
: Improve electromagnetic interference shielding of
PPy
/
PDA
/
Ti
3
C
2
T
x
composites in X‐ and K
u
‐band. POLYM ADVAN TECHNOL 2022. [DOI: 10.1002/pat.5649] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Datong Wu
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, School of Physics and Electronic Engineering Harbin Normal University Harbin P. R. China
| | - Xue Cheng
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, School of Physics and Electronic Engineering Harbin Normal University Harbin P. R. China
| | - Tianze Zhang
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, School of Physics and Electronic Engineering Harbin Normal University Harbin P. R. China
| | - Hong Gao
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, School of Physics and Electronic Engineering Harbin Normal University Harbin P. R. China
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10
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Ren S, Yu H, Wang L, Huang Z, Lin T, Huang Y, Yang J, Hong Y, Liu J. State of the Art and Prospects in Metal-Organic Framework-Derived Microwave Absorption Materials. NANO-MICRO LETTERS 2022; 14:68. [PMID: 35217977 PMCID: PMC8881588 DOI: 10.1007/s40820-022-00808-6] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Accepted: 01/14/2022] [Indexed: 05/12/2023]
Abstract
Microwave has been widely used in many fields, including communication, medical treatment and military industry; however, the corresponding generated radiations have been novel hazardous sources of pollution threating human's daily life. Therefore, designing high-performance microwave absorption materials (MAMs) has become an indispensable requirement. Recently, metal-organic frameworks (MOFs) have been considered as one of the most ideal precursor candidates of MAMs because of their tunable structure, high porosity and large specific surface area. Usually, MOF-derived MAMs exhibit excellent electrical conductivity, good magnetism and sufficient defects and interfaces, providing obvious merits in both impedance matching and microwave loss. In this review, the recent research progresses on MOF-derived MAMs were profoundly reviewed, including the categories of MOFs and MOF composites precursors, design principles, preparation methods and the relationship between mechanisms of microwave absorption and microstructures of MAMs. Finally, the current challenges and prospects for future opportunities of MOF-derived MAMs are also discussed.
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Affiliation(s)
- Shuning Ren
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China
| | - Haojie Yu
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China.
| | - Li Wang
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China
| | - Zhikun Huang
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China
| | - Tengfei Lin
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China
| | - Yudi Huang
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China
| | - Jian Yang
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China
| | - Yichuan Hong
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China
| | - Jinyi Liu
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China
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11
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Du FY, Chen RC, Che J, Xu WD, Liu X, Li YT, Zhou YL, Yuan J, Zhang QP. High loading BaTiO 3 nanoparticles chemically bonded with fluorinated silicone rubber for largely enhanced dielectric properties of polymer nanocomposites. Phys Chem Chem Phys 2021; 23:26219-26226. [PMID: 34787124 DOI: 10.1039/d1cp04040e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Integrating high-loading dielectric nanoparticles into polar polymer matrices potentially can profit the intrinsic polarization of each phase and allow for greatly enhanced dielectric properties in polymer nanocomposites. It is however challenging to achieve desirable highly filled polar polymer composites because of the lack of efficient approaches to disperse nanoparticles and maintain interfacial compatibility. Here, we report a versatile route to fabricate highly filled barium titanate/fluorinated silicone rubber (BT/FSR) nanocomposites by "thiol-ene click" and isostatic pressing techniques. The loaded BT nanoparticles (from 82 wt% to 90 wt%) are chemically bonded with FSR in the nanocomposites. The existence of the polar group (-CH2CF3) of the polymer matrix does not affect the uniform dispersion of the nanoparticles or the good interfacial compatibility. The 90 wt% BT/FSR nanocomposite shows the highest dielectric constant of 57.8 at 103 Hz, while the loss tangent can be kept below 0.03. Besides, BT/FSR nanocomposites display higher breakdown strength than BT/SR nanocomposites. This work offers a facile strategy towards superior dielectric properties of polymer nanocomposites.
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Affiliation(s)
- Fang-Yan Du
- State Key Laboratory of Environment-friendly Energy Materials, School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China.
| | - Rui-Chao Chen
- State Key Laboratory of Environment-friendly Energy Materials, School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China.
| | - Junjin Che
- Centre de Recherche Paul Pascal, CNRS, University of Bordeaux, UMR 5031, 33600, Pessac, France.
| | - Wei-Di Xu
- State Key Laboratory of Environment-friendly Energy Materials, School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China.
| | - Xiu Liu
- State Key Laboratory of Environment-friendly Energy Materials, School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China.
| | - Yin-Tao Li
- State Key Laboratory of Environment-friendly Energy Materials, School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China.
| | - Yuan-Lin Zhou
- State Key Laboratory of Environment-friendly Energy Materials, School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China.
| | - Jinkai Yuan
- Centre de Recherche Paul Pascal, CNRS, University of Bordeaux, UMR 5031, 33600, Pessac, France.
| | - Quan-Ping Zhang
- State Key Laboratory of Environment-friendly Energy Materials, School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China.
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12
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Ławińska K. Production of Agglomerates, Composite Materials, and Seed Coatings from Tannery Waste as New Methods for Its Management. MATERIALS (BASEL, SWITZERLAND) 2021; 14:6695. [PMID: 34772220 PMCID: PMC8587419 DOI: 10.3390/ma14216695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 11/02/2021] [Accepted: 11/04/2021] [Indexed: 11/16/2022]
Abstract
This paper presents methods for managing waste produced by the leather industry, including tanning shavings derived from chrome tanning technologies and collagen preparations. Shavings were classified according to their shape (in accordance with Zingg's shape classification). The content of individual elements was determined, together with the content of volatile organic compounds. Two new products were developed as part of the completed works: agglomerates (methods of non-pressure granulation) and composite materials were produced on the basis of tanning shavings and mineral fillers. Young's modulus values classify these composite materials in the group of polymers and certain materials from the group of elastomers. A method for seed coating (on the example of legumes and rape) was also developed using a disc granulator, including collagen preparations in one of the layers as a solution for preventing the effects of droughts (biostimulant). The analyses of selected properties of the new products confirm the wide possible application of waste shavings and collagen preparations in a circular economy, especially in the construction, packaging, and agricultural sectors.
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Affiliation(s)
- Katarzyna Ławińska
- Łukasiewicz Research Network-Institute of Leather Industry, Zgierska 73, 91-463 Lodz, Poland
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13
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Cheng H, Cao C, Zhang Q, Wang Y, Liu Y, Huang B, Sun XL, Guo Y, Xiao L, Chen Q, Qian Q. Enhancement of Electromagnetic Interference Shielding Performance and Wear Resistance of the UHMWPE/PP Blend by Constructing a Segregated Hybrid Conductive Carbon Black-Polymer Network. ACS OMEGA 2021; 6:15078-15088. [PMID: 34151088 PMCID: PMC8210415 DOI: 10.1021/acsomega.1c01240] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Accepted: 05/06/2021] [Indexed: 05/05/2023]
Abstract
The low-percolation-threshold conductive networking structure is indispensable for the high performance and functionalization of conductive polymer composites (CPCs). In this work, conductive carbon black (CCB)-reinforced ultrahigh-molecular-weight polyethylene (UHMWPE)/polypropylene (PP) blend with tunable electrical conductivity and good mechanical properties was prepared using a high-speed mechanical mixing method and a compression-molded process. An interconnecting segregated hybrid CCB-polymer network is formed in electrically conductive UHMWPE/PP/CCB (UPC) composites. The UPC composites possess a dense conductive pathway at a low percolation threshold of 0.48 phr. The composite with 3 phr CCB gives an electrical conductivity value of 1.67 × 10-3 S/cm, 12 orders of magnitude higher than that of the polymeric matrix, suggesting that CCB improves both the electrical conductivity and electromagnetic interference shielding effectiveness (EMI SE) of the composite at the loading fraction over its percolation threshold. The composite with 15 phr CCB presents an absorption-dominated electromagnetic interference shielding effectiveness (EMI SE) as high as 27.29 dB at the X-band. The composite also presents higher tribological properties, mechanical properties, and thermal stability compared to the UP blend. This effort provides a simple and effective way for the mass fabrication of CPC materials with excellent performance.
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Affiliation(s)
- Huibin Cheng
- College
of Environmental Science and Engineering, Fujian Normal University, Fuzhou 350007, Fujian, China
| | - Changlin Cao
- College
of Environmental Science and Engineering, Fujian Normal University, Fuzhou 350007, Fujian, China
| | - Qinghai Zhang
- College
of Materials and Chemical Engineering, Liming
Vocational University, Tonggang Road 298, Quanzhou 362000, Fujian, China
| | - Yangtao Wang
- College
of Materials and Chemical Engineering, Liming
Vocational University, Tonggang Road 298, Quanzhou 362000, Fujian, China
| | - Yanru Liu
- College
of Life Science, Fujian Normal University, Fuzhou 350007, Fujian, China
| | - Baoquan Huang
- College
of Environmental Science and Engineering, Fujian Normal University, Fuzhou 350007, Fujian, China
| | - Xiao-Li Sun
- College
of Environmental Science and Engineering, Fujian Normal University, Fuzhou 350007, Fujian, China
| | - Yiyou Guo
- College
of Environmental Science and Engineering, Fujian Normal University, Fuzhou 350007, Fujian, China
| | - Lireng Xiao
- Engineering
Research Center of Polymer Green Recycling of Ministry of Education, Fuzhou 350007, Fujian, China
| | - Qinghua Chen
- College
of Environmental Science and Engineering, Fujian Normal University, Fuzhou 350007, Fujian, China
- Engineering
Research Center of Polymer Green Recycling of Ministry of Education, Fuzhou 350007, Fujian, China
| | - Qingrong Qian
- College
of Environmental Science and Engineering, Fujian Normal University, Fuzhou 350007, Fujian, China
- Fujian
Key Laboratory of Pollution Control & Resource Reuse, Fuzhou 350007, China
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14
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Wang Y, Qi Q, Yin G, Wang W, Yu D. Flexible, Ultralight, and Mechanically Robust Waterborne Polyurethane/Ti 3C 2T x MXene/Nickel Ferrite Hybrid Aerogels for High-Performance Electromagnetic Interference Shielding. ACS APPLIED MATERIALS & INTERFACES 2021; 13:21831-21843. [PMID: 33909972 DOI: 10.1021/acsami.1c04962] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Flexible, ultralight, and mechanically robust electromagnetic interference (EMI) shielding materials are urgently demanded to manage the increasing electromagnetic radiation pollution, but it remains a great challenge to simultaneously achieve ultralight yet mechanically robust properties while retaining high-efficiency EMI shielding performance. Herein, we fabricate a novel waterborne polyurethane/Ti3C2Tx MXene/nickel ferrite (WPU/MXene/NiFe2O4) hybrid aerogel by constructing a strong chemical bonding interaction between an NCO-terminated WPU prepolymer and hydroxyl functionalized MXene nanosheets. The resultant aerogels exhibit remarkable lightweight and mechanical properties, particularly high compressive stress far exceeding that of other MXene-based and WPU-based porous materials. Furthermore, synergistic effects of the oriented porous architecture and the multiphase skeleton endow the hybrid aerogels with a high X-band EMI shielding effectiveness (SE) of 64.7 dB at a low density of ∼38.2 mg/cm3. The corresponding specific SE value achieves 1694-3124 dB·cm3/g, and the SSE/d is up to 15,620 dB·cm2/g, surpassing that of most reported EMI shielding materials. Importantly, this aerogel, with excellent electromagnetic radiation protection effects and shielding reliability, is highly promising for long-term and effective EMI shielding service in various application environments.
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Affiliation(s)
- Yu Wang
- Shanghai Key Laboratory of Lightweight Composite, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, P.R. China 201620
| | - Qingbin Qi
- Shanghai Key Laboratory of Lightweight Composite, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, P.R. China 201620
| | - Guang Yin
- Shanghai Key Laboratory of Lightweight Composite, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, P.R. China 201620
| | - Wei Wang
- Shanghai Key Laboratory of Lightweight Composite, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, P.R. China 201620
- Saintyear Holding Group Co., Ltd., Hangzhou, China 311221
| | - Dan Yu
- Shanghai Key Laboratory of Lightweight Composite, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, P.R. China 201620
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15
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Song P, Liu B, Liang C, Ruan K, Qiu H, Ma Z, Guo Y, Gu J. Lightweight, Flexible Cellulose-Derived Carbon Aerogel@Reduced Graphene Oxide/PDMS Composites with Outstanding EMI Shielding Performances and Excellent Thermal Conductivities. NANO-MICRO LETTERS 2021; 13:91. [PMID: 34138335 PMCID: PMC8006522 DOI: 10.1007/s40820-021-00624-4] [Citation(s) in RCA: 122] [Impact Index Per Article: 40.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Accepted: 02/16/2021] [Indexed: 05/11/2023]
Abstract
In order to ensure the operational reliability and information security of sophisticated electronic components and to protect human health, efficient electromagnetic interference (EMI) shielding materials are required to attenuate electromagnetic wave energy. In this work, the cellulose solution is obtained by dissolving cotton through hydrogen bond driving self-assembly using sodium hydroxide (NaOH)/urea solution, and cellulose aerogels (CA) are prepared by gelation and freeze-drying. Then, the cellulose carbon aerogel@reduced graphene oxide aerogels (CCA@rGO) are prepared by vacuum impregnation, freeze-drying followed by thermal annealing, and finally, the CCA@rGO/polydimethylsiloxane (PDMS) EMI shielding composites are prepared by backfilling with PDMS. Owing to skin-core structure of CCA@rGO, the complete three-dimensional (3D) double-layer conductive network can be successfully constructed. When the loading of CCA@rGO is 3.05 wt%, CCA@rGO/PDMS EMI shielding composites have an excellent EMI shielding effectiveness (EMI SE) of 51 dB, which is 3.9 times higher than that of the co-blended CCA/rGO/PDMS EMI shielding composites (13 dB) with the same loading of fillers. At this time, the CCA@rGO/PDMS EMI shielding composites have excellent thermal stability (THRI of 178.3 °C) and good thermal conductivity coefficient (λ of 0.65 W m-1 K-1). Excellent comprehensive performance makes CCA@rGO/PDMS EMI shielding composites great prospect for applications in lightweight, flexible EMI shielding composites.
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Affiliation(s)
- Ping Song
- MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions, Shaanxi Key Laboratory of Macromolecular Science and Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, 710072, P. R. China
| | - Bei Liu
- MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions, Shaanxi Key Laboratory of Macromolecular Science and Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, 710072, P. R. China
- Xi'an ESWIN Silicon Wafer Technology Co. Ltd, Xi'an, 710100, P. R. China
| | - Chaobo Liang
- MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions, Shaanxi Key Laboratory of Macromolecular Science and Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, 710072, P. R. China
| | - Kunpeng Ruan
- MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions, Shaanxi Key Laboratory of Macromolecular Science and Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, 710072, P. R. China
| | - Hua Qiu
- MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions, Shaanxi Key Laboratory of Macromolecular Science and Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, 710072, P. R. China
| | - Zhonglei Ma
- MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions, Shaanxi Key Laboratory of Macromolecular Science and Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, 710072, P. R. China
| | - Yongqiang Guo
- MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions, Shaanxi Key Laboratory of Macromolecular Science and Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, 710072, P. R. China
| | - Junwei Gu
- MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions, Shaanxi Key Laboratory of Macromolecular Science and Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, 710072, P. R. China.
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16
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Zhang T, Zeng S, Jiang H, Li Z, Bai D, Li Y, Li J. Leather Solid Waste/Poly(vinyl alcohol)/Polyaniline Aerogel with Mechanical Robustness, Flame Retardancy, and Enhanced Electromagnetic Interference Shielding. ACS APPLIED MATERIALS & INTERFACES 2021; 13:11332-11343. [PMID: 33625832 DOI: 10.1021/acsami.1c00880] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Renewable biobased aerogels display a promising potential to fulfill the surging demand in various industrial sectors. However, its inherent low mechanical robustness, flammability, and lack of functionality are still huge obstacles in its practical application. Herein, a novel integrated leather solid waste (LSW)/poly(vinyl alcohol) (PVA)/polyaniline (PANI) aerogel with high mechanical robustness, flame retardancy, and electromagnetic interference (EMI) shielding performance was successfully prepared. Amino carboxyl groups in LSW could be effectively exposed by solid-state shear milling (S3 M) technology to form strong hydrogen-bond interactions with the PVA molecular chains. This led to a change in the compressive strength and the temperature of the initial dimensional change to 15.6 MPa and 112.7 °C at a thickness of 2.5 cm, respectively. Moreover, LSW contains a large number of N elements, which ensures a nitrogen-based flame-retardant mechanism and increase in the limit oxygen index value of LSW/PVA aerogel to 32.0% at a thickness of 2.5 mm. Notably, by the cyclic coating method, a conductive PANI layer could be polymerized on the surface of LSW/PVA aerogel, which led to the construction of a sandwich structure with impressive EMI shielding capability. The EMI shielding effectiveness (SE) reached more than 40 dB, and the specific shielding effectiveness (SSE) reached 73.0 dB cm3 g-1. The inherent dipoles in collagen fibers and the conductive PANI synergistically produced an internal multiple reflection and absorption mechanism. The comprehensive performance of LSW/PVA/PANI aerogel not only demonstrates a new strategy to recycle LSW in a more value-added way but also sheds some more light on the development of biomass aerogels with high-performance, environmentally friendly, and cost-effective properties.
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Affiliation(s)
- Tongrui Zhang
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Shulong Zeng
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Hao Jiang
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Zeshan Li
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Dongyu Bai
- Chongqing Key Laboratory of Materials Surface & Interface Science, School of Materials Science and Engineering, Chongqing University of Arts and Sciences, Chongqing 402160, China
| | - Yijun Li
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Jianjun Li
- Kingfa Science and Technology Co., Ltd., Guangzhou 510000, China
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