1
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Pan L, Wang Y, Jin Q, Luo Y, Zhou Z, Zhu M. Waste cotton textile-derived cellulose composite porous film with enhanced piezoelectric performance for energy harvesting and self-powered sensing. Carbohydr Polym 2024; 346:122607. [PMID: 39245491 DOI: 10.1016/j.carbpol.2024.122607] [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: 05/10/2024] [Revised: 08/09/2024] [Accepted: 08/10/2024] [Indexed: 09/10/2024]
Abstract
Integrating flexible piezoelectric nanogenerators (PENGs) into wearable and portable electronics offers promising prospects for motion monitoring. However, it remains a significant challenge to develop environmentally friendly PENGs using biodegradable and cost-effective natural polymers for mechanical energy harvesting and self-powered sensing. Herein, reduced graphene oxide (rGO) and barium titanate (BTO) were introduced into regenerated cellulose pulp to fabricate a composite porous film-based PENG. The incorporation of rGO not only increased the electrical conductivity of the porous film but also enhanced the dispersibility of BTO. Moreover, the unique pore structure of the composite porous film improved the polarization effect of the air inside the pores, thereby greatly boosting the overall piezoelectric performance. The piezoelectric coefficient of the resulting composite porous film reaches up to 41.5 pC·N-1, which is comparable to or higher than those reported in similar studies. Consequently, the PENG assembled from this cellulose/rGO/BTO composite porous film (CGB-PENG) achieved an output voltage of 47 V, a current of 4.6 μA, and a power density of 30 μW·cm-2, approximately three times the output voltage and ten times the power density of similar studies. This work presents a feasible approach for the fabrication of high-performance cellulose-based PENGs derived from recycled waste cotton textiles.
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Affiliation(s)
- Liang Pan
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Ying Wang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Qiuyi Jin
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Yulin Luo
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Zhe Zhou
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China.
| | - Meifang Zhu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
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2
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Kumari S, Dalal J, Kumar A, Pal R, Chahal R, Ohlan A. Enhanced microwave absorption properties of conducting polymer@graphene composite to counteract electromagnetic radiation pollution: green EMI shielding. RSC Adv 2024; 14:662-676. [PMID: 38173587 PMCID: PMC10760626 DOI: 10.1039/d3ra07245b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Accepted: 11/27/2023] [Indexed: 01/05/2024] Open
Abstract
Conducting polymers have been thoroughly investigated and found to have extensive applications in the fields of microwave absorption and electromagnetic (EM) shielding owing to their distinctive characteristics and adaptability. In the present work, conducting polymer (PEDOT and polyaniline) and graphene composites were prepared via an in situ chemical polymerization technique. Further, these composite materials were characterized to determine their potential to address the issue of EM radiation pollution in the microwave frequency (12.4 GHz to 18 GHz). The PEDOT/graphene composites exhibited significant shielding effectiveness of up to 46.53 dB, achieving a green index (gs) of 1.17. Also, absorption was observed to be the dominant shielding mechanism in all the samples owing to significant dielectric losses (ε''/ε' ≈ 1.9-3.1) and microwave conductivity (σs = 19.9-73.6 S m-1) in the samples at 18 GHz. Both dielectric loss and conduction loss occurred because of the strong interactions involving polarization, charge propagation, and the creation of conductive routes through the incorporation of graphene in the polymer matrix. These properties/shielding results indicate the potential of the composites to be used as lightweight EM shielding materials. These materials are suitable shield materials for electronic devices to protect them from harmful electromagnetic radiation, making them vital in various applications.
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Affiliation(s)
- Suman Kumari
- Department of Physics, Chaudhary Ranbir Singh University Jind 126102 India
- Department of Physics, Maharani Kishori Jat Kanya Mahavidyalaya Rohtak 124001 India
| | - Jasvir Dalal
- Department of Physics, Rajdhani College, University of Delhi Delhi 110015 India
| | - Anand Kumar
- Department of Physics, Chaudhary Ranbir Singh University Jind 126102 India
| | - Rishi Pal
- Department of Applied Science, Kalpana Chawla Government Polytechnic Ambala 134003 India
| | - Ritu Chahal
- Department of Physics, Maharshi Dayanand University Rohtak 124001 India
| | - Anil Ohlan
- Department of Physics, Maharshi Dayanand University Rohtak 124001 India
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3
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Gao Y, Li Y, Kong X, Ma M. Enhanced Mechanical Property of Polyamide-6/Graphite Sheet Composites with Segregated 3D Network Binary Structure for High Thermal Conductivity. Polymers (Basel) 2023; 15:1041. [PMID: 36850323 PMCID: PMC9963544 DOI: 10.3390/polym15041041] [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: 01/12/2023] [Revised: 02/10/2023] [Accepted: 02/17/2023] [Indexed: 02/22/2023] Open
Abstract
Segregated conductive polymer composites exhibit excellent electrical properties with a low percolation threshold. However, the mechanical properties of the segregated conductive polymer composites were always poor because the conductive fillers at the interfaces hinder polymer chain diffusion and thus lead to weak interfacial interaction between the conductive fillers and the polymer matrix. In this paper, polyamide-6 and polyamide-612 microspheres were synthesized via the in situ anionic ring opening of caprolactam and laurolactam. Segregated graphite sheets/polyamide-6(GS/PA6) and polyamide-612(PA612) composites with good mechanical properties were realized via high-pressure solid-phase compression molding. The microstructures of the composite samples were observed by scanning electron microscopy, which showed that the formation of a GS-conductive network at the PA6 granule interfaces in the segregated conductive structures and the adopting of PA612 considerably improved the interfacial adhesion of the composites. A superior impact strength of 5.1 kJ/m2 was achieved with 50 wt% PA612 loading owing to improvements in the interface compatibility between PA6 and GS. The composites possessed an ultralow percolation threshold, which was ascribed to the segregated network structure being successfully constructed inside the material. As for GS/PA6 composites, the combination of segregated GS-conductive networks achieved an ultralow percolation of 2.8 vol%. The percolation of 80PA6/20PA612-GS composites was slightly higher, measuring up to 3.2 vol%. Moreover, the thermal conductivity of the 80PA6/20PA612-GS composites increased from 0.26 to around 0.5 W/(m·K), which was 1.9 times larger than the pure polyamide.
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Affiliation(s)
- Yao Gao
- College of Optoelectronic Manufacturing, Zhejiang Industry & Trade Vocational College, Wenzhou 325000, China
| | - Yong Li
- College of Optoelectronic Manufacturing, Zhejiang Industry & Trade Vocational College, Wenzhou 325000, China
| | - Xiangwei Kong
- College of Optoelectronic Manufacturing, Zhejiang Industry & Trade Vocational College, Wenzhou 325000, China
| | - Meng Ma
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, China
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4
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Tan X, Liu TH, Zhou W, Yuan Q, Ying J, Yan Q, Lv L, Chen L, Wang X, Du S, Wan YJ, Sun R, Nishimura K, Yu J, Jiang N, Dai W, Lin CT. Enhanced Electromagnetic Shielding and Thermal Conductive Properties of Polyolefin Composites with a Ti 3C 2T x MXene/Graphene Framework Connected by a Hydrogen-Bonded Interface. ACS NANO 2022; 16:9254-9266. [PMID: 35674718 DOI: 10.1021/acsnano.2c01716] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The rapid increase of operation speed, transmission efficiency, and power density of miniaturized devices leads to a rising demand for electromagnetic interference (EMI) shielding and thermal management materials in the semiconductor industry. Therefore, it is essential to improve both the EMI shielding and thermal conductive properties of commonly used polyolefin components (such as polyethylene (PE)) in electronic systems. Currently, melt compounding is the most common method to fabricate polyolefin composites, but the difficulty of filler dispersion and high resistance at the filler/filler or filler/matrix interface limits their properties. Here, a fold fabrication strategy was proposed to prepare PE composites by incorporation of a well-aligned, seamless graphene framework premodified with MXene nanosheets into the matrix. We demonstrate that the physical properties of the composites can be further improved at the same filler loading by nanoscale interface engineering: the formation of hydrogen bonds at the graphene/MXene interface and the development of a seamlessly interconnected graphene framework. The obtained PE composites exhibit an EMI shielding property of ∼61.0 dB and a thermal conductivity of 9.26 W m-1 K-1 at a low filler content (∼3 wt %, including ∼0.4 wt % MXene). Moreover, other thermoplastic composites with the same results can also be produced based on our method. Our study provides an idea toward rational design of the filler interface to prepare high-performance polymer composites for use in microelectronics and microsystems.
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Affiliation(s)
- Xue Tan
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering (NIMTE), Chinese Academy of Sciences, Ningbo 315201, People's Republic of China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Te-Huan Liu
- School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - Wenjiang Zhou
- School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - Qilong Yuan
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering (NIMTE), Chinese Academy of Sciences, Ningbo 315201, People's Republic of China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Junfeng Ying
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering (NIMTE), Chinese Academy of Sciences, Ningbo 315201, People's Republic of China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Qingwei Yan
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering (NIMTE), Chinese Academy of Sciences, Ningbo 315201, People's Republic of China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Le Lv
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering (NIMTE), Chinese Academy of Sciences, Ningbo 315201, People's Republic of China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Lu Chen
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering (NIMTE), Chinese Academy of Sciences, Ningbo 315201, People's Republic of China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Xiangze Wang
- School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - Shiyu Du
- Engineering Laboratory of Advanced Energy Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, People's Republic of China
| | - Yan-Jun Wan
- Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, People's Republic of China
| | - Rong Sun
- Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, People's Republic of China
| | - Kazuhito Nishimura
- Advanced Nano-processing Engineering Lab, Mechanical Engineering, Kogakuin University, Tokyo, 192-0015, Japan
| | - Jinhong Yu
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering (NIMTE), Chinese Academy of Sciences, Ningbo 315201, People's Republic of China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Nan Jiang
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering (NIMTE), Chinese Academy of Sciences, Ningbo 315201, People's Republic of China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Wen Dai
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering (NIMTE), Chinese Academy of Sciences, Ningbo 315201, People's Republic of China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Cheng-Te Lin
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering (NIMTE), Chinese Academy of Sciences, Ningbo 315201, People's Republic of China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
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5
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Raagulan K, Ghim J, Braveenth R, Chai KY, Kim BM. Improving the EMI shielding of graphene oxide (GNO)-coated glass-fiber-GNO-MA-grafted polypropylene (PP) composites and nylon 1D-2D nanocomposite foams. RSC Adv 2022; 12:15316-15328. [PMID: 35693240 PMCID: PMC9118371 DOI: 10.1039/d1ra09124g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 05/04/2022] [Indexed: 11/21/2022] Open
Abstract
The proliferation of the latest electronic gadgets and wireless communication devices can trigger electromagnetic interference (EMI), which has a detrimental impact on electronic devices and humans. Efficient EMI shielding materials are required for EMI-SE and they should be durable in external environments, lightweight, and cost-effective. GNO-coated glass-fiber-GNO-maleic anhydride-grafted polypropylene (MAPP) composite and carbon fiber-reinforced nylon 1D-2D nanocomposite foam were successfully prepared via a cost-effective thermal process. The composites were characterized using scanning electron microscopy (SEM), Raman spectroscopy, X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). The PP and nylon-based composites with ∼13% filler showed maximum electrical conductivity (EC) of 878 mS cm-1 and 1381 mS cm-1, respectively. The GNO-coated glass-fiber-GNO-MAPP foam displays a maximum EMI-SE of 120.6 dB, while the nylon graphene-carbon nanotube-metal nanoplatelet foam exhibits a maximum EMI-SE of 139.1 dB in the X-band region. The GFCFFeGMAPP composite possesses a minimum thickness of 2.56 mm and blocks most incoming radiation. These are some of the highest EMI-SE values reported so far for glass fiber and nylon-based composites, and the nylon-based composite showed excellent properties compared to the glass fiber-based composite. Thus, we believe that the developed composites can be used in a wide range of real applications, such as in military vehicles, aviation, automobiles, and the packaging of electronic circuits.
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Affiliation(s)
- Kanthasamy Raagulan
- Division of Bio-Nanochemistry, College of Natural Sciences, Wonkwang University Iksan City 570-749 Korea +82-10-8629-5448
| | - Jinsoo Ghim
- Division of Bio-Nanochemistry, College of Natural Sciences, Wonkwang University Iksan City 570-749 Korea +82-10-8629-5448
| | - Ramanaskanda Braveenth
- Division of Bio-Nanochemistry, College of Natural Sciences, Wonkwang University Iksan City 570-749 Korea +82-10-8629-5448
| | - Kyu Yun Chai
- Division of Bio-Nanochemistry, College of Natural Sciences, Wonkwang University Iksan City 570-749 Korea +82-10-8629-5448
| | - Bo Mi Kim
- Department of Chemical Engineering, Wonkwang University Iksan 570-749 Korea 1 +82-63-850-7278
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6
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Xu J, Chen R, Yun Z, Bai Z, Li K, Shi S, Hou J, Guo X, Zhang X, Chen J. Lightweight Epoxy/Cotton Fiber-Based Nanocomposites with Carbon and Fe 3O 4 for Electromagnetic Interference Shielding. ACS OMEGA 2022; 7:15215-15222. [PMID: 35572748 PMCID: PMC9089691 DOI: 10.1021/acsomega.2c01293] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 04/11/2022] [Indexed: 06/15/2023]
Abstract
Cotton fiber (CF)-based electroconductive papers were prepared by facile aqueous dispersion and drying processes combined with carbon nanotubes (CNTs) or graphene nanosheets (GNPs). To enhance the electromagnetic interference (EMI) shielding performance of the manufactured nanocomposites, the electroconductive papers were soaked with epoxy resin, which cooperated with the inner sprayed Fe3O4 nanoparticles. The EMI shielding effectiveness of Epoxy/CF-30-Fe3O4-30GNPs reached 33.1 dB, of which over 85.0% is attributed to absorption, which is mainly believed to be caused by the combination of GNPs and Fe3O4 nanoparticles due to their special structures and synergetic effects. Moreover, the infiltration of epoxy between the randomly distributed loose CFs and the multiple reflections inside the interconnected networks could also help to improve the EMI shielding performance of GNP-added samples. The prepared lightweight and stiff Epoxy/CF-30-Fe3O4-30GNP composites have promising applications in civil or military fields.
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Affiliation(s)
- Jianwei Xu
- School
of Materials Science and Engineering, Zhengzhou
University, Zhengzhou 450001, China
| | - Ruiyue Chen
- School
of Materials Science and Engineering, Zhengzhou
University, Zhengzhou 450001, China
| | - Zhigeng Yun
- School
of Materials Science and Engineering, Zhengzhou
University, Zhengzhou 450001, China
| | - Zhongyi Bai
- School
of Materials Science and Engineering, Henan Key Laboratory of Aeronautical
Materials and Application Technology, Zhengzhou
University of Aeronautics, Zhengzhou 450046, China
| | - Kun Li
- School
of Materials Science and Engineering, Zhengzhou
University, Zhengzhou 450001, China
| | - Shaozhe Shi
- School
of Materials Science and Engineering, Zhengzhou
University, Zhengzhou 450001, China
- College
of Polymer Science and Engineering, State Key Laboratory of Polymer
Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Junji Hou
- School
of Materials Science and Engineering, Zhengzhou
University, Zhengzhou 450001, China
| | - Xiaoqin Guo
- School
of Materials Science and Engineering, Henan Key Laboratory of Aeronautical
Materials and Application Technology, Zhengzhou
University of Aeronautics, Zhengzhou 450046, China
| | - Xiaoli Zhang
- School
of Materials Science and Engineering, Zhengzhou
University, Zhengzhou 450001, China
| | - Jingbo Chen
- School
of Materials Science and Engineering, Zhengzhou
University, Zhengzhou 450001, China
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7
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Carbonization of Graphene-Doped Isocyanate-Based Polyimide Foams to Achieve Carbon Foams with Excellent Electromagnetic Interference Shielding Performance. MATERIALS 2021; 14:ma14247551. [PMID: 34947147 PMCID: PMC8707478 DOI: 10.3390/ma14247551] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 12/03/2021] [Accepted: 12/08/2021] [Indexed: 11/16/2022]
Abstract
Lightweight carbon foams with excellent electromagnetic interference (EMI) shielding performance were prepared by carbonization process, using isocyanate-based polyimide foams as carbon precursors. The influence of carbonization temperature and graphene-doping on the morphological, electrical and EMI shielding effectiveness (SE) of corresponding carbon foams was studied in detail. Results showed that the addition of graphene was beneficial to the improvement of electrical conductivity and EMI shielding performance of carbon foams. The electrical conductivity of carbon foams increased with the carbonization temperature which was related to the increase of graphitization degree. Collapse of foam cells was observed at higher carbonization temperatures, which was detrimental to the overall EMI SE. The optimal carbonization temperature was found at 1100 °C and the carbon foams obtained from 0.5 wt% graphene-doped foams exhibited a specific EMI SE of 2886 dB/(g/cm3), which shows potential applications in fields such as aerospace, aeronautics and electronics.
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8
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Mao Y, Zhuang Y, Cao X, Xue C, Fan X, Lu J, Ye G, Zheng K, Zhang J, Ma Y. Segregated highly conductive linear low‐density polyethylene/graphene nanoplatelet composite through aqueous dispersing and self‐leveling method. J Appl Polym Sci 2021. [DOI: 10.1002/app.51212] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yiding Mao
- Key Laboratory of Green Printing, Institute of Chemistry Chinese Academy of Sciences Beijing China
- College of Bioresources Chemical & Materials Engineering, Shaanxi University of Chinese and Technology Shaanxi PR China
| | - Yafang Zhuang
- Key Laboratory of Green Printing, Institute of Chemistry Chinese Academy of Sciences Beijing China
| | - Xinyu Cao
- Key Laboratory of Green Printing, Institute of Chemistry Chinese Academy of Sciences Beijing China
| | - Chaohua Xue
- College of Bioresources Chemical & Materials Engineering, Shaanxi University of Chinese and Technology Shaanxi PR China
| | - Xianpeng Fan
- Key Laboratory of Green Printing, Institute of Chemistry Chinese Academy of Sciences Beijing China
| | - Jiaxin Lu
- Key Laboratory of Green Printing, Institute of Chemistry Chinese Academy of Sciences Beijing China
| | - Gang Ye
- Key Laboratory of Green Printing, Institute of Chemistry Chinese Academy of Sciences Beijing China
| | - Kun Zheng
- Key Laboratory of Green Printing, Institute of Chemistry Chinese Academy of Sciences Beijing China
| | - Jingnan Zhang
- Key Laboratory of Green Printing, Institute of Chemistry Chinese Academy of Sciences Beijing China
| | - Yongmei Ma
- Key Laboratory of Green Printing, Institute of Chemistry Chinese Academy of Sciences Beijing China
- Beijing National Laboratory for Molecular Sciences (BNLMS) Beijing China
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9
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Zhang J, Zhang J, Shuai X, Zhao R, Guo T, Li K, Wang D, Ma C, Li J, Du J. Design and Synthesis Strategies: 2D Materials for Electromagnetic Shielding/Absorbing. Chem Asian J 2021; 16:3817-3832. [PMID: 34585842 DOI: 10.1002/asia.202100979] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 09/26/2021] [Indexed: 01/15/2023]
Abstract
Two-dimensional (2D) materials possess special physical and chemical properties. They have been proved to have potential application advantage in the microwave absorption (MA) and electromagnetic interference (EMI) shielding. Particularly, they exhibit positive shielding and absorbing response to EMI. Here, the research progress of preparation, electromagnetic performance and microwave shielding/absorbing mechanisms of 2D composite materials are introduced. Effective preparation routes including introducing heteroatoms, constructing unique structures and 2D composite materials are described. Furthermore, the application prospects and challenges for the development of novel EMI materials are expatiated.
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Affiliation(s)
- Jie Zhang
- College of Chemistry and Chemical Engineering, Taiyuan University of Technology, No. 79 Yingze West Street, Taiyuan, Shanxi, P. R. China.,Electromagnetic Protection Materials and Technology, Key Laboratory of Shanxi Province, 33rd Research Institute of China Electronics Technology Group Corporation, Taiyuan, 030006, P. R. China
| | - Jianchao Zhang
- College of Chemistry and Chemical Engineering, Taiyuan University of Technology, No. 79 Yingze West Street, Taiyuan, Shanxi, P. R. China
| | - Xiaofeng Shuai
- College of Chemistry and Chemical Engineering, Taiyuan University of Technology, No. 79 Yingze West Street, Taiyuan, Shanxi, P. R. China
| | - Ruihua Zhao
- College of Chemistry and Chemical Engineering, Taiyuan University of Technology, No. 79 Yingze West Street, Taiyuan, Shanxi, P. R. China.,Shanxi Kunming Tobacco Co. Ltd., 21 Dachang South Road, Taiyuan, Shanxi, P. R. China
| | - Tianyu Guo
- College of Environment Science and Engineering, Taiyuan University of Technology, No. 79 Yingze West Street, Taiyuan, Shanxi, P. R. China.,Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization, No. 79 Yingze West Street, Taiyuan, Shanxi, P. R. China
| | - Kexun Li
- Electromagnetic Protection Materials and Technology, Key Laboratory of Shanxi Province, 33rd Research Institute of China Electronics Technology Group Corporation, Taiyuan, 030006, P. R. China
| | - Donghong Wang
- Electromagnetic Protection Materials and Technology, Key Laboratory of Shanxi Province, 33rd Research Institute of China Electronics Technology Group Corporation, Taiyuan, 030006, P. R. China
| | - Chen Ma
- Electromagnetic Protection Materials and Technology, Key Laboratory of Shanxi Province, 33rd Research Institute of China Electronics Technology Group Corporation, Taiyuan, 030006, P. R. China
| | - Jinping Li
- College of Chemistry and Chemical Engineering, Taiyuan University of Technology, No. 79 Yingze West Street, Taiyuan, Shanxi, P. R. China.,Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization, No. 79 Yingze West Street, Taiyuan, Shanxi, P. R. China
| | - Jianping Du
- College of Chemistry and Chemical Engineering, Taiyuan University of Technology, No. 79 Yingze West Street, Taiyuan, Shanxi, P. R. China.,Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization, No. 79 Yingze West Street, Taiyuan, Shanxi, P. R. China
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10
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Zhao X, Huang D, Ewulonu CM, Wu M, Wang C, Huang Y. Polypropylene/graphene nanoplatelets nanocomposites with high conductivity via solid-state shear mixing. E-POLYMERS 2021. [DOI: 10.1515/epoly-2021-0039] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The research on facile, low-cost, and green process for the uniform dispersion of graphene nanoplatelets (GNPs) into polymer matrix has always been a considerable challenge in practical applications. The Van der Waals interaction between graphene layers can easily cause aggregation of the nanofillers. Here, we propose a new method to solve this problem by involving solid-state shear mixing to obtain a well-dispersed nanocomposite. The comprehensive properties of nanocomposite, including antistatic properties, mechanical properties, and thermal stability, can be significantly enhanced by this method. The surface resistivity of the nanocomposite can be up to 2.4 × 107 Ω sq−1 under 1 wt% content of GNPs, which is significantly better than the value obtained by conventional melting compounding and meets the required standard of less than 3 × 108 Ω sq−1 for actual application antistatic materials. The impact strength of the nanocomposite increased by 120.8% when compared with neat PP. At the same time, the heat distortion temperature and initial decomposition temperature of the nanocomposite with only 0.5 wt% content of GNPs are improved by 11.7°C and 110°C, respectively. In addition, GNPs is a heterogeneous nucleating agent that leads PP to emerge β crystal form. This study provides an effective and practical reference for the broad-scale industrial preparation of polymer-based graphene nanocomposites.
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Affiliation(s)
- Xiaoliang Zhao
- National Engineering Research Center of Engineering Plastics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , Beijing 100190 , China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Dayong Huang
- Functional Polymer Materials Center, National Engineering Research Center of Engineering Plastics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , Beijing 100190 , China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Chinomso M. Ewulonu
- Functional Polymer Materials Center, National Engineering Research Center of Engineering Plastics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , Beijing 100190 , China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences , Beijing 100049 , China
- Department of Polymer and Textile Engineering, Nnamdi Azikiwe University , P. M. B 5025 , Awka , Nigeria
| | - Min Wu
- Functional Polymer Materials Center, National Engineering Research Center of Engineering Plastics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , Beijing 100190 , China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Chao Wang
- Functional Polymer Materials Center, National Engineering Research Center of Engineering Plastics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , Beijing 100190 , China
| | - Yong Huang
- National Engineering Research Center of Engineering Plastics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , Beijing 100190 , China
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11
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Thermal Degradation Kinetics and Modeling Study of Ultra High Molecular Weight Polyethylene (UHMWP)/Graphene Nanocomposite. Molecules 2021; 26:molecules26061597. [PMID: 33805845 PMCID: PMC8000268 DOI: 10.3390/molecules26061597] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 03/05/2021] [Accepted: 03/10/2021] [Indexed: 12/05/2022] Open
Abstract
The incorporation of nanofillers such as graphene into polymers has shown significant improvements in mechanical characteristics, thermal stability, and conductivity of resulting polymeric nanocomposites. To this aim, the influence of incorporation of graphene nanosheets into ultra-high molecular weight polyethylene (UHMWPE) on the thermal behavior and degradation kinetics of UHMWPE/graphene nanocomposites was investigated. Scanning electron microscopy (SEM) analysis revealed that graphene nanosheets were uniformly spread throughout the UHMWPE’s molecular chains. X-Ray Diffraction (XRD) data posited that the morphology of dispersed graphene sheets in UHMWPE was exfoliated. Non-isothermal differential scanning calorimetry (DSC) studies identified a more pronounced increase in melting temperatures and latent heat of fusions in nanocomposites compared to UHMWPE at lower concentrations of graphene. Thermogravimetric analysis (TGA) and derivative thermogravimetric (DTG) revealed that UHMWPE’s thermal stability has been improved via incorporating graphene nanosheets. Further, degradation kinetics of neat polymer and nanocomposites have been modeled using equations such as Friedman, Ozawa–Flynn–Wall (OFW), Kissinger, and Augis and Bennett’s. The "Model-Fitting Method” showed that the auto-catalytic nth-order mechanism provided a highly consistent and appropriate fit to describe the degradation mechanism of UHMWPE and its graphene nanocomposites. In addition, the calculated activation energy (Ea) of thermal degradation was enhanced by an increase in graphene concentration up to 2.1 wt.%, followed by a decrease in higher graphene content.
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12
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Guo J, Zhang K, Dai R, Nie M, Li Y, Wang Q. Flexible Sensor for Invisible Respiratory Monitoring via Construction of a 2D Stacked Micronetwork. ACS OMEGA 2020; 5:32806-32813. [PMID: 33376919 PMCID: PMC7758983 DOI: 10.1021/acsomega.0c05367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Accepted: 12/02/2020] [Indexed: 06/12/2023]
Abstract
With the advent of 5G and the Internet of Things era, sensitive and stable sensors have begun to develop rapidly, which are important substantial fundaments of smart medical care. In this study, based on the positive temperature coefficient (PTC) in conductive polymer composites (CPC), a novel polyolefin elastomer (POE)/carbon fiber (CF) composite was prepared. By regulating the rheological behavior of the polymer matrix, we realized its controllable thermal expansion in the temperature field and finally realized the reversible construction-destruction of the conductive CF network. Under optimal molecular weight conditions, the POE/CF PTC sensor showed a high sensitivity of 0.11 °C-1 and stability. It was also demonstrated that the heat transfer efficiency of the composite material played an essential role in the sensitivity of the as-prepared PTC sensor. Most impressively, we have assembled an invisible respiratory monitoring device based on the POE/CF composite to achieve real-time monitoring of human breathing, which displayed wide potential prospects in thermal monitoring and provided good prospects for micron-scale functional composites.
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13
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Yan L, Zhang H, Zhou S, Zou H, Chen Y, Liang M. Improving ablation properties of liquid silicone rubber composites by in situ construction of rich‐porous char layer. J Appl Polym Sci 2020. [DOI: 10.1002/app.50030] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Liwei Yan
- The State Key Laboratory of Polymer Materials Engineering Polymer Research Institute of Sichuan University Chengdu China
| | - Hao Zhang
- The State Key Laboratory of Polymer Materials Engineering Polymer Research Institute of Sichuan University Chengdu China
| | - Shengtai Zhou
- The State Key Laboratory of Polymer Materials Engineering Polymer Research Institute of Sichuan University Chengdu China
| | - Huawei Zou
- The State Key Laboratory of Polymer Materials Engineering Polymer Research Institute of Sichuan University Chengdu China
| | - Yang Chen
- The State Key Laboratory of Polymer Materials Engineering Polymer Research Institute of Sichuan University Chengdu China
| | - Mei Liang
- The State Key Laboratory of Polymer Materials Engineering Polymer Research Institute of Sichuan University Chengdu China
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14
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Shi S, Peng Z, Jing J, Yang L, Chen Y, Kotsilkova R, Ivanov E. Preparation of Highly Efficient Electromagnetic Interference Shielding Polylactic Acid/Graphene Nanocomposites for Fused Deposition Modeling Three-Dimensional Printing. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c02400] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Shaohong Shi
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, China
| | - Zilin Peng
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, China
| | - Jingjing Jing
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, China
| | - Lu Yang
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, China
| | - Yinghong Chen
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, China
| | - Rumiana Kotsilkova
- Open Laboratory on Experimental Micro and Nano Mechanics, Institute of Mechanics, Bulgarian Academy of Sciences, Acad. G. Bonchev Str. Block 4, 1113 Sofia, Bulgaria
| | - Evgeni Ivanov
- Research and Development of Nanomaterials and Nanotechnologies, NanoTechLab Ltd., Acad. G. Bonchev Str. Block 4, 1113 Sofia, Bulgaria
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