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Rathinasamy SK, Maheswar R, Lorincz J. Silk Fibroin-Based Piezoelectric Sensor with Carbon Nanofibers for Wearable Health Monitoring Applications. SENSORS (BASEL, SWITZERLAND) 2023; 23:1373. [PMID: 36772412 PMCID: PMC9919155 DOI: 10.3390/s23031373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Revised: 01/22/2023] [Accepted: 01/23/2023] [Indexed: 06/18/2023]
Abstract
The continuous real-time monitoring of human health using biomedical sensing devices has recently become a promising approach to the realization of distant health monitoring. In this paper, the piezoelectric characteristics of the silk fibroin (SF) natural polymer were analyzed as the material used for obtaining sensing information in the application of distance health monitoring. To enhance the SF piezoelectricity, this paper presents the development of a novel SF-based sensor realized by combining SF with different carbon nanofiber (CNF) densities, and for such newly developed SF-based sensors comprehensive performance analyses have been performed. Versatile methods including the scanning electron microscope, Fourier transform infrared spectroscopy, Raman and X-ray diffraction measurements and impedance analysis were used to study the morphologic, mechanical and electrical properties of the developed SF-based sensor. The SF with CNF samples was analyzed for three different pressure loads (40 N, 60 N and 80 N) in 500 compression test cycles. The analyses thoroughly describe how combining natural polymer SF with different CNF densities impacts the piezoelectricity and mechanical strength of the proposed SF-based sensor. The developed piezoelectric SF-based sensors were further tested on humans in real medical applications to detect generated piezoelectric voltage in versatile body movements. The maximum piezoelectricity equal to 2.95 ± 0.03 V was achieved for the jumping movement, and the SF sample with a CNF density equal to 0.4% was tested. Obtained results also show that the proposed SF-based sensor has an appropriate piezoelectric sensitivity for each of the analyzed body movement types, and that the proposed SF-based sensor can be applied in real medical applications as a biomedical sensing device. The proposed SF-based sensor's practical implementation is further confirmed by the results of cytotoxicity analyses, which show that the developed sensor has a non-toxic and biocompatible nature and can be efficiently used in skin contact for biomedical wearable health monitoring applications.
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Affiliation(s)
- Senthil Kumar Rathinasamy
- Department of Mechanical Engineering, KPR Institute of Engineering and Technology, Coimbatore 641407, India
| | - Rajagopal Maheswar
- Department of ECE, Centre for IoT and AI (CITI), KPR Institute of Engineering and Technology, Coimbatore 641407, India
| | - Josip Lorincz
- Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture (FESB), University of Split, 21000 Split, Croatia
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2
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Sharafkhani S, Kokabi M. Modeling the dielectric behavior of polymer nanocomposites considering interphase properties and nanoparticle geometry. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-022-04364-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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3
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Kalimuldina G, Turdakyn N, Abay I, Medeubayev A, Nurpeissova A, Adair D, Bakenov Z. A Review of Piezoelectric PVDF Film by Electrospinning and Its Applications. SENSORS (BASEL, SWITZERLAND) 2020; 20:E5214. [PMID: 32932744 PMCID: PMC7570857 DOI: 10.3390/s20185214] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 08/31/2020] [Accepted: 09/01/2020] [Indexed: 11/16/2022]
Abstract
With the increase of interest in the application of piezoelectric polyvinylidene fluoride (PVDF) in nanogenerators (NGs), sensors, and microdevices, the most efficient and suitable methods of their synthesis are being pursued. Electrospinning is an effective method to prepare higher content β-phase PVDF nanofiber films without additional high voltage poling or mechanical stretching, and thus, it is considered an economically viable and relatively simple method. This work discusses the parameters affecting the preparation of the desired phase of the PVDF film with a higher electrical output. The design and selection of optimum preparation conditions such as solution concentration, solvents, the molecular weight of PVDF, and others lead to electrical properties and performance enhancement in the NG, sensor, and other applications. Additionally, the effect of the nanoparticle additives that showed efficient improvements in the PVDF films was discussed as well. For instance, additives of BaTiO3, carbon nanotubes, graphene, nanoclays, and others are summarized to show their contributions to the higher piezo response in the electrospun PVDF. The recently reported applications of electrospun PVDF films are also analyzed in this review paper.
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Affiliation(s)
- Gulnur Kalimuldina
- School of Engineering and Digital Sciences, Nazarbayev University, Nur-Sultan 010000, Kazakhstan; (N.T.); (I.A.); (A.M.); (D.A.); (Z.B.)
| | - Nursultan Turdakyn
- School of Engineering and Digital Sciences, Nazarbayev University, Nur-Sultan 010000, Kazakhstan; (N.T.); (I.A.); (A.M.); (D.A.); (Z.B.)
| | - Ingkar Abay
- School of Engineering and Digital Sciences, Nazarbayev University, Nur-Sultan 010000, Kazakhstan; (N.T.); (I.A.); (A.M.); (D.A.); (Z.B.)
| | - Alisher Medeubayev
- School of Engineering and Digital Sciences, Nazarbayev University, Nur-Sultan 010000, Kazakhstan; (N.T.); (I.A.); (A.M.); (D.A.); (Z.B.)
| | - Arailym Nurpeissova
- National Laboratory Astana, Institute of Batteries, Nazarbayev University, Nur-Sultan 010000, Kazakhstan;
| | - Desmond Adair
- School of Engineering and Digital Sciences, Nazarbayev University, Nur-Sultan 010000, Kazakhstan; (N.T.); (I.A.); (A.M.); (D.A.); (Z.B.)
| | - Zhumabay Bakenov
- School of Engineering and Digital Sciences, Nazarbayev University, Nur-Sultan 010000, Kazakhstan; (N.T.); (I.A.); (A.M.); (D.A.); (Z.B.)
- National Laboratory Astana, Institute of Batteries, Nazarbayev University, Nur-Sultan 010000, Kazakhstan;
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Qiao XT, Gong L, Chen SH, Zhan SP, Sun XD. Isothermal Crystallization Behavior of Poly(vinylidene fluoride) Based Membrane with Graphene Oxide. INT POLYM PROC 2020. [DOI: 10.3139/217.3786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
Graphene oxide (GO) sheets were obtained via an improved Hummer's method, and the Poly(vinylidene fluoride) (PVDF)/GO membranes employing GO as nucleating agent were prepared by solution casting. The crystalline behaviors and the crystallization kinetics of PVDF/GO membranes with varying GO concentration were investigated after isothermal crystallization at different temperatures. The results showed that the addition of GO induced the β-phase formation of PVDF. The spherulite diameter reached the peak value when the content of GO was 0.1 wt%, then reduced to the minimum value at 1 wt% GO within the tested temperature range of isothermal crystallization. It is worth mentioning that the relative fraction of β phase F(β) was dramatically improved to 0.85 for the PVDF/GO membrane with 0.5 wt% GO at 155°C. Furthermore, an enhancement of the crystallization rate was observed as the contents of GO increased in the system.
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Affiliation(s)
- X.-T. Qiao
- Department of Environment and Chemical Engineering , Dalian University, Dalian , PRC
- Liaoning Engineering Laboratory for Special Optical Functional Crystals , Dalian University, Dalian , PRC
| | - L. Gong
- Department of Environment and Chemical Engineering , Dalian University, Dalian , PRC
- Liaoning Engineering Laboratory for Special Optical Functional Crystals , Dalian University, Dalian , PRC
| | - S.-H. Chen
- Department of Environment and Chemical Engineering , Dalian University, Dalian , PRC
- Liaoning Engineering Laboratory for Special Optical Functional Crystals , Dalian University, Dalian , PRC
| | - S.-P. Zhan
- Department of Environment and Chemical Engineering , Dalian University, Dalian , PRC
- Liaoning Engineering Laboratory for Special Optical Functional Crystals , Dalian University, Dalian , PRC
| | - X.-D. Sun
- Department of Environment and Chemical Engineering , Dalian University, Dalian , PRC
- Liaoning Engineering Laboratory for Special Optical Functional Crystals , Dalian University, Dalian , PRC
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Wang Z, Fan J, Guo X, Ji J, Sun Z. Enhanced permittivity of negative permittivity middle-layer sandwich polymer matrix composites through conductive filling with flake MAX phase ceramics. RSC Adv 2020; 10:27025-27032. [PMID: 35515751 PMCID: PMC9055498 DOI: 10.1039/d0ra03493b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Accepted: 06/27/2020] [Indexed: 11/21/2022] Open
Abstract
Polymer matrix composites are expected to promote the development of embedded packaging technology for circuit boards, but it is still impossible to obtain polymer matrix composites with high permittivity and low loss tangent simultaneously. In this study, a laminated composite with a middle-layer possessing negative permittivity effects was prepared by hot pressing sintering using MAX phase ceramics as a conductive filler. High permittivity (170@1 kHz) and low loss tangent (0.3@1 kHz) were achieved in traditional sandwich polymer matrix composites (SPMCs). Its high permittivity can be explained by the series capacitor model and the interfacial polarization promoted by the flake structure of the MAX phase ceramics. Low loss tangent is guaranteed by the ohmic barrier effect caused by the huge resistance difference between adjacent layers in the composite material. These SPMCs with special structure are expected to provide new ideas for developing embedded capacitors. In this study, a laminated composite with a middle-layer possessing negative permittivity effects was prepared by hot pressing sintering using MAX phase ceramics as a conductive filler.![]()
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Affiliation(s)
- Zhuo Wang
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology Xi'an 710021 People's Republic of China +86-15114845870
| | - Jiahao Fan
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology Xi'an 710021 People's Republic of China +86-15114845870
| | - Xu Guo
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology Xi'an 710021 People's Republic of China +86-15114845870
| | - Jiamin Ji
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology Xi'an 710021 People's Republic of China +86-15114845870
| | - Zixiong Sun
- School of Electrical Informatica and Artificial Intelligence, Shaanxi University of Science and Technology Xi'an 710021 People's Republic of China
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Development of In-Situ Poled Nanofiber Based Flexible Piezoelectric Nanogenerators for Self-Powered Motion Monitoring. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10103493] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Energy harvesting technologies have found significant importance over the past decades due to the increasing demand of energy and self-powered design of electronic and implantable devices. Herein, we demonstrate the design and application of in situ poled highly flexible piezoelectric poly vinylidene fluoride (PVDF) graphene oxide (GO) hybrid nanofibers in aligned mode for multifaceted applications from locomotion sensors to self-powered motion monitoring. Here we exploited the simplest and most versatile method, called electrospinning, to fabricate the in situ poled nanofibers by transforming non-polar α-phase of PVDF to polar β- phase structures for enhanced piezoelectricity under high bias voltage. The flexible piezoelectric device fabricated using the aligned mode generates an improved output voltage of 2.1 V at a uniform force of 12 N. The effective piezoelectric transduction exhibited by the proposed system was tested for its multiple efficacies as a locomotion detector, bio-e-skin, smart chairs and so on.
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7
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Li T, Feng ZQ, Qu M, Yan K, Yuan T, Gao B, Wang T, Dong W, Zheng J. Core/Shell Piezoelectric Nanofibers with Spatial Self-Orientated β-Phase Nanocrystals for Real-Time Micropressure Monitoring of Cardiovascular Walls. ACS NANO 2019; 13:10062-10073. [PMID: 31469542 DOI: 10.1021/acsnano.9b02483] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Implantable pressure biosensors show great potential for assessment and diagnostics of pressure-related diseases. Here, we present a structural design strategy to fabricate core/shell polyvinylidene difluoride (PVDF)/hydroxylamine hydrochloride (HHE) organic piezoelectric nanofibers (OPNs) with well-controlled and self-orientated nanocrystals in the spatial uniaxial orientation (SUO) of β-phase-rich fibers, which significantly enhance piezoelectric performance, fatigue resistance, stability, and biocompatibility. Then PVDF/HHE OPNs soft sensors are developed and used to monitor subtle pressure changes in vivo. Upon implanting into pig, PVDF/HHE OPNs sensors demonstrate their ultrahigh detecting sensitivity and accuracy to capture micropressure changes at the outside of cardiovascular walls, and output piezoelectric signals can real-time and synchronously reflect and distinguish changes of cardiovascular elasticity and occurrence of atrioventricular heart-block and formation of thrombus. Such biological information can provide a diagnostic basis for early assessment and diagnosis of thrombosis and atherosclerosis, especially for postoperative recrudescence of thrombus deep within the human body.
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Affiliation(s)
- Tong Li
- School of Chemical Engineering , Nanjing University of Science and Technology , Nanjing 210094 , China
| | - Zhang-Qi Feng
- School of Chemical Engineering , Nanjing University of Science and Technology , Nanjing 210094 , China
| | - Minghe Qu
- School of Chemical Engineering , Nanjing University of Science and Technology , Nanjing 210094 , China
| | - Ke Yan
- School of Chemical Engineering , Nanjing University of Science and Technology , Nanjing 210094 , China
| | - Tao Yuan
- Department of Orthopedic , Nanjing Jinling Hospital , Nanjing 210002 , China
| | - Bingbing Gao
- State Key Laboratory of Bioelectronics , Southeast University , Nanjing 210096 , China
| | - Ting Wang
- State Key Laboratory of Bioelectronics , Southeast University , Nanjing 210096 , China
| | - Wei Dong
- School of Chemical Engineering , Nanjing University of Science and Technology , Nanjing 210094 , China
| | - Jie Zheng
- Department of Chemical and Biomolecular Engineering , The University of Akron , Akron , Ohio 44325 , United States
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8
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Luo H, Zhou X, Ellingford C, Zhang Y, Chen S, Zhou K, Zhang D, Bowen CR, Wan C. Interface design for high energy density polymer nanocomposites. Chem Soc Rev 2019; 48:4424-4465. [PMID: 31270524 DOI: 10.1039/c9cs00043g] [Citation(s) in RCA: 141] [Impact Index Per Article: 28.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
This review provides a detailed overview on the latest developments in the design and control of the interface in polymer based composite dielectrics for energy storage applications. The methods employed for interface design in composite systems are described for a variety of filler types and morphologies, along with novel approaches employed to build hierarchical interfaces for multi-scale control of properties. Efforts to achieve a close control of interfacial properties and geometry are then described, which includes the creation of either flexible or rigid polymer interfaces, the use of liquid crystals and developing ceramic and carbon-based interfaces with tailored electrical properties. The impact of the variety of interface structures on composite polarization and energy storage capability are described, along with an overview of existing models to understand the polarization mechanisms and quantitatively assess the potential benefits of different structures for energy storage. The applications and properties of such interface-controlled materials are then explored, along with an overview of existing challenges and practical limitations. Finally, a summary and future perspectives are provided to highlight future directions of research in this growing and important area.
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Affiliation(s)
- Hang Luo
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha, Hunan 410083, China.
| | - Xuefan Zhou
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha, Hunan 410083, China.
| | - Christopher Ellingford
- International Institute for Nanocomposites Manufacturing (IINM), WMG, University of Warwick, CV4 7AL, UK.
| | - Yan Zhang
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha, Hunan 410083, China. and Department of Mechanical Engineering, University of Bath, Bath, BA2 2ET, UK.
| | - Sheng Chen
- Key Laboratory of Polymeric Materials and Application Technology of Hunan Province, College of Chemistry, Xiangtan University, Xiangtan 411105, Hunan Province, China
| | - Kechao Zhou
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha, Hunan 410083, China.
| | - Dou Zhang
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha, Hunan 410083, China.
| | - Chris R Bowen
- Department of Mechanical Engineering, University of Bath, Bath, BA2 2ET, UK.
| | - Chaoying Wan
- International Institute for Nanocomposites Manufacturing (IINM), WMG, University of Warwick, CV4 7AL, UK.
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9
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Kaczmarek H, Królikowski B, Klimiec E, Chylińska M, Bajer D. Advances in the study of piezoelectric polymers. RUSSIAN CHEMICAL REVIEWS 2019. [DOI: 10.1070/rcr4860] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The literature review based on the works published over the last decade concerns the progress in research on innovative piezoelectric materials with current or potential practical applications. At the beginning, the nature of piezoelectric phenomenon is clarified. The main emphasis is put on presentation of polymers, biopolymers and polymer composites as well as hybrid materials with piezoelectric properties. Moreover, carbon nanomaterials are also included. These materials have recently become an intensively developing field, as evidenced by numerous scientific publications. Furthermore, the recently reported main methods of characterizations and selected examples of modern applications of piezoelectric materials in various fields (electronics, industry, medicine) have been discussed.
The bibliography includes 217 references.
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10
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Polymer Compositional Ratio-Dependent Morphology, Crystallinity, Dielectric Dispersion, Structural Dynamics, and Electrical Conductivity of PVDF/PEO Blend Films. Macromol Res 2019. [DOI: 10.1007/s13233-019-7142-0] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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11
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Affiliation(s)
- Ayesha Kausar
- School of Natural Sciences, National University of Sciences and Technology (NUST), Islamabad, Pakistan
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12
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Li Y, Wang B, Zhang B, Ge X, Bulin C, Xing R. Hydrophilic Fluoro‐Functionalized Graphene Oxide / Polyvinylidene Fluoride Composite Films with High Dielectric Constant and Low Dielectric Loss. ChemistrySelect 2019. [DOI: 10.1002/slct.201803520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yanan Li
- School of Materials and MetallurgyInner Mongolia University of Science and Technology 7# Arding Street, Kun District Baotou 014010 China
| | - Bo Wang
- School of Materials and MetallurgyInner Mongolia University of Science and Technology 7# Arding Street, Kun District Baotou 014010 China
| | - Bangwen Zhang
- School of Materials and MetallurgyInner Mongolia University of Science and Technology 7# Arding Street, Kun District Baotou 014010 China
| | - Xin Ge
- School of Materials and MetallurgyInner Mongolia University of Science and Technology 7# Arding Street, Kun District Baotou 014010 China
| | - Chaoke Bulin
- School of Materials and MetallurgyInner Mongolia University of Science and Technology 7# Arding Street, Kun District Baotou 014010 China
| | - Ruiguang Xing
- School of Materials and MetallurgyInner Mongolia University of Science and Technology 7# Arding Street, Kun District Baotou 014010 China
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13
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Poly(vinylidene fluoride)/Plasma-Treated BaTiO3 Nanocomposites with Enhanced Electroactive Phase. Macromol Res 2018. [DOI: 10.1007/s13233-018-6118-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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14
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Yu S, Wang G. Improving the dielectric performance of poly(vinylidene fluoride)/polyaniline nanorod composites by stretch-induced crystal transition. POLYM INT 2018. [DOI: 10.1002/pi.5617] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Shuangmin Yu
- School of Materials Science and Engineering, Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of the Ministry of Education; East China University of Science and Technology; Shanghai P. R. China
| | - Gengchao Wang
- School of Materials Science and Engineering, Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of the Ministry of Education; East China University of Science and Technology; Shanghai P. R. China
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Ye H, Lu T, Xu C, Zhong M, Xu L. Enhanced energy density and thermal conductivity in poly(fluorovinylidene-co-hexafluoropropylene) nanocomposites incorporated with boron nitride nanosheets exfoliated under assistance of hyperbranched polyethylene. NANOTECHNOLOGY 2018; 29:095702. [PMID: 29260738 DOI: 10.1088/1361-6528/aaa318] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Polymer dielectric film with a large dielectric constant, high energy density and enhanced thermal conductivity are of significance for the development of impulse capacitors. However, the fabrication of polymer dielectrics combining high energy density and thermal conductivity is still a challenge at the moment. Here we demonstrate the facile exfoliation of hexagonal boron nitride nanosheets (BNNSs) in common organic solvents under sonication with the assistance of hyperbranched polyethylene (HBPE). The noncovalent CH-π interactions between the nanosheets and HBPE ensure the dispersion of BNNSs in organic solvents with high concentrations, because of the highly branched chain structure of HBPE. Subsequently, the resultant BNNSs with a few defects are distributed uniformly in the poly(fluorovinylidene-co-hexafluoropropylene) (P(VDF-HFP)) nanocomposite films prepared via simple solution casting. The BNNS/P(VDF-HFP) nanocomposite exhibits outstanding dielectric properties, high energy density and high thermal conductivity. The dielectric constant of the 0.5 wt% nanocomposite film is 35.5 at 100 Hz with an energy density of 5.6 J cm-3 at 325 MV m-1 and a high charge-discharge efficiency of 79% due to the depression of the charge injection and chemical species ionization in a high field. Moreover, a thermal conductivity of 1.0 wt% nanocomposite film reaches 0.91 W·m-1 · K-1, which is 3.13 times higher than that of the fluoropolymer matrix. With dipole accumulation and orientation in the interfacial zone, lightweight, flexible BNNS/P(VDF-HFP) nanocomposite films with high charge-discharge performance and thermal conductivity, exhibit promising applications in relatively high-temperature electronics and energy storage devices.
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Affiliation(s)
- Huijian Ye
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
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16
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Tiwari VK, Lee Y, Song G, Lib Kim K, Jung Park Y, Park C. Thin poly(ionic liquid) and poly(vinylidene fluoride) blend films with ferro- and piezo-electric polar γ-crystals. ACTA ACUST UNITED AC 2018. [DOI: 10.1002/polb.24593] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Vimal K. Tiwari
- Department of Materials Science and Engineering; Yonsei University; Seoul 120-749 Republic of Korea
| | - Yujeong Lee
- Department of Materials Science and Engineering; Yonsei University; Seoul 120-749 Republic of Korea
| | - Giyoung Song
- Department of Materials Science and Engineering; Yonsei University; Seoul 120-749 Republic of Korea
| | - Kang Lib Kim
- Department of Materials Science and Engineering; Yonsei University; Seoul 120-749 Republic of Korea
| | - Youn Jung Park
- IP Center, Samsung Electronics; Seoul 06705 Republic of Korea
| | - Cheolmin Park
- Department of Materials Science and Engineering; Yonsei University; Seoul 120-749 Republic of Korea
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17
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Wang S, Li X, Liu Y, Zhang C, Tan X, Zeng G, Song B, Jiang L. Nitrogen-containing amino compounds functionalized graphene oxide: Synthesis, characterization and application for the removal of pollutants from wastewater: A review. JOURNAL OF HAZARDOUS MATERIALS 2018; 342:177-191. [PMID: 28829983 DOI: 10.1016/j.jhazmat.2017.06.071] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Revised: 06/13/2017] [Accepted: 06/30/2017] [Indexed: 06/07/2023]
Abstract
Nowadays, using graphene oxide (GO) as an adsorbent for removing pollutants from wastewater has attracted increasing attention due to its unique physic-chemical properties. Nitrogen-containing amino (NA) compounds have excellently complexing properties due to their abundant amino functional groups. In order to obtain an innovative adsorbent, functionalized GO (NAGO) has been developed by combining the properties of GO with the advantages of NA compounds. The obtained NAGO composites usually exhibit great improvement in adsorption properties and can be used as a promising adsorbent for decontamination of wastewater. This paper reviewed recent progress of synthetic technologies about fabricating various NAGOs, and their morphologies, structures and functional characteristics. Meanwhile, important applications of NAGOs for different kind of pollutants and theory of the adsorption phenomena are discussed based on the isothermal and kinetic adsorption models. Furthermore, the affecting factors, underlying mechanisms and comparison with other adsorbents for the removal of pollutants are reviewed. Conclusively, the perspectives and challenges involved in the application of NAGOs for decontamination of wastewater have also been proposed to promote sustainable development of this new exciting field.
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Affiliation(s)
- Shengfan Wang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Xin Li
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China.
| | - Yunguo Liu
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Chang Zhang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Xiaofei Tan
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Guangming Zeng
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Biao Song
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Luhua Jiang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
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Dai ZH, Han JR, Gao Y, Xu J, He J, Guo BH. Increased dielectric permittivity of poly(vinylidene fluoride-co-chlorotrifluoroethylene) nanocomposites by coating BaTiO3 with functional groups owning high bond dipole moment. Colloids Surf A Physicochem Eng Asp 2017. [DOI: 10.1016/j.colsurfa.2017.05.065] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Hosseini SM, Yousefi AA. Electrospun PVDF/MWCNT/OMMT hybrid nanocomposites: preparation and characterization. IRANIAN POLYMER JOURNAL 2017. [DOI: 10.1007/s13726-017-0522-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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20
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Wang J, Shi Z, Mao F, Chen S, Wang X. Bilayer Polymer Metacomposites Containing Negative Permittivity Layer for New High-k Materials. ACS APPLIED MATERIALS & INTERFACES 2017; 9:1793-1800. [PMID: 28005330 DOI: 10.1021/acsami.6b12786] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Polymer matrix high-k composites are of considerable interest in various electronic devices, such as capacitors, antennas, actuators, etc. However, how to enhance the permittivity without elevating the loss remains a challenge for us. Here we present a novel design of bilayer high-k metacomposites consisting of two stacked single layers with positive permittivity and negative permittivity. Interestingly, the bilayer system shows an obvious permittivity boost effect with a permittivity improved by a 40-fold increase compared with the polymer matrix, while maintaining a loss tangent as low as 0.06. Further calculation results indicate that the permittivity of the bilayer composites could be enhanced by 4000-fold or even a greater increase as compared with the polymer matrix via balancing the dielectric properties of single layers. Insights into how the thickness ratios and dielectric properties of single layers interfere with the dielectric performances of bilayer composites were discussed. This study provides a new route for the design of high-k materials, and it will have great significance on the development of dielectric materials. Hopefully, multilayer high-k metacomposites with fascinating dielectric performances could be achieved via balancing the dielectric properties of single layers.
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Affiliation(s)
- Jing Wang
- Institute of Material Science and Engineering, Ocean University of China , Qingdao 266100, China
| | - Zhicheng Shi
- Institute of Material Science and Engineering, Ocean University of China , Qingdao 266100, China
| | - Fan Mao
- Institute of Material Science and Engineering, Ocean University of China , Qingdao 266100, China
| | - Shougang Chen
- Institute of Material Science and Engineering, Ocean University of China , Qingdao 266100, China
| | - Xin Wang
- Institute of Material Science and Engineering, Ocean University of China , Qingdao 266100, China
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Maity N, Mandal A, Nandi AK. Hierarchical nanostructured polyaniline functionalized graphene/poly(vinylidene fluoride) composites for improved dielectric performances. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.09.048] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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22
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Tiwari VK, Ghorpade RV, Kim KL, Song G, Kim T, Han H, Park C. Thin and surface adhesive ferroelectric poly(vinylidene fluoride) films with β phase-inducing amino modified porous silica nanofillers. ACTA ACUST UNITED AC 2016. [DOI: 10.1002/polb.24145] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Vimal K. Tiwari
- Department of Materials Science and Engineering; Yonsei University; Seoul 120-749 Republic of Korea
| | - Ravindra V. Ghorpade
- Department of Chemical and Biomolecular Engineering; Yonsei University; Seoul 120-749 Republic of Korea
| | - Kang Lib Kim
- Department of Materials Science and Engineering; Yonsei University; Seoul 120-749 Republic of Korea
| | - Giyoung Song
- Department of Materials Science and Engineering; Yonsei University; Seoul 120-749 Republic of Korea
| | - Taehee Kim
- Department of Chemical and Biomolecular Engineering; Yonsei University; Seoul 120-749 Republic of Korea
| | - Haksoo Han
- Department of Chemical and Biomolecular Engineering; Yonsei University; Seoul 120-749 Republic of Korea
| | - Cheolmin Park
- Department of Materials Science and Engineering; Yonsei University; Seoul 120-749 Republic of Korea
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Ionic conductivity enhancement in gel polymer electrolyte membrane with N-methyl-N-butyl-piperidine-bis(trifluoromethylsulfonyl) imide ionic liquid for lithium ion battery. Colloids Surf A Physicochem Eng Asp 2016. [DOI: 10.1016/j.colsurfa.2016.05.011] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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24
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Wang J, Shi Z, Mao F, Wang X, Zhang K, Shi J. Ni/Al2O3/epoxy high-k composites with ultralow nickel content towards high-performance dielectric applications. RSC Adv 2016. [DOI: 10.1039/c6ra06157e] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Ni/Al2O3/epoxy composites with ultralow nickel content, high permittivity and low loss were prepared via a facile wet impregnation process.
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Affiliation(s)
- Jing Wang
- Institute of Materials Science and Engineering
- Ocean University of China
- Qingdao 266100
- P. R. China
| | - Zhicheng Shi
- Institute of Materials Science and Engineering
- Ocean University of China
- Qingdao 266100
- P. R. China
| | - Fan Mao
- Institute of Materials Science and Engineering
- Ocean University of China
- Qingdao 266100
- P. R. China
| | - Xin Wang
- Institute of Materials Science and Engineering
- Ocean University of China
- Qingdao 266100
- P. R. China
| | - Kun Zhang
- Key Laboratory of Microgravity (National Microgravity Laboratory)
- Institute of Mechanics
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Jing Shi
- Institute of Materials Science and Engineering
- Ocean University of China
- Qingdao 266100
- P. R. China
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25
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Singh RK, Kumar R, Singh DP. Graphene oxide: strategies for synthesis, reduction and frontier applications. RSC Adv 2016. [DOI: 10.1039/c6ra07626b] [Citation(s) in RCA: 324] [Impact Index Per Article: 40.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
In this review article, we describe a general introduction to GO, its synthesis, reduction and some selected frontier applications. Its low cost and potential for mass production make GO a promising building block for functional hybrid materials.
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Affiliation(s)
- Rajesh Kumar Singh
- School of Physical & Material Sciences
- Central University of Himachal Pradesh (CUHP)
- Dharamshala
- India
| | - Rajesh Kumar
- Center for Semiconductor Components and Nanotechnology (CCS Nano)
- University of Campinas (UNICAMP)
- 13083-870 Campinas
- Brazil
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