Article
Engineering, Manufacturing
Yanjun He, Agnieszka Suliga, Alex Brinkmeyer, Mark Schenk, Ian Hamerton
Summary: A new thermoset resin system based on a polybenzoxazine blend showed good performance under high ATOX irradiation. It reduced erosion yield by forming a silicon-rich surface layer and improved the mechanical properties of CFRP laminates.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Materials Science, Multidisciplinary
K. Mohamed Mydeen, Hariharan Arumugam, Balaji Krishnasamy, Devaraju Subramani, Alagar Muthukaruppan
Summary: Four series of benzoxazines based on nonylphenol were synthesized and utilized for water-repellent fabrics, low-k and anticorrosion applications. The chemical structure of benzoxazines was determined by spectroscopic methods. The thermal properties of benzoxazines were evaluated using TGA and DSC. It was found that poly(NPoda) exhibited excellent water-repellent properties, and poly(NP-ffa) and poly(NP-ddm) had high char residue values and low dielectric constant when incorporated with silica or SBA-15.
JOURNAL OF MATERIALS SCIENCE
(2023)
Article
Polymer Science
Shakila Parveen Asrafali, Thirukumaran Periyasamy, Rajesh Haldhar, Santhamoorthy Madhappan, Seong-Cheol Kim
Summary: Polymers are crucial in the semiconductor electronic industry, especially in the production of low dielectric constant materials. This study focuses on two approaches to producing low dielectric materials from polybenzoxazines, which involve synthesizing different benzoxazine monomers and preparing Pbz/SiO2 nanocomposites. The addition of inorganic components significantly enhances the thermal and mechanical properties of polybenzoxazine.
JOURNAL OF POLYMER RESEARCH
(2022)
Article
Materials Science, Composites
Lu Jing, Weili Li, Chang Gao, Menglu Li, Weidong Fei
Summary: A novel structure design of lamellar-structured MgO and BiFeO3/MgO fillers is proposed, and a series of PVDF-based composites are fabricated. The composites exhibit significantly improved breakdown strength and high energy storage performance due to the large heterojunction electric field produced by BFO and MgO.
COMPOSITES SCIENCE AND TECHNOLOGY
(2022)
Article
Materials Science, Composites
Liang Gao, Jiaqi Zhang, Zijun Chen, Xuan Wang
Summary: Designing a core-shell structure for ceramic filler is an effective way to improve the insulation property of polymer matrix, but it suffers from a low dielectric constant that limits the energy storage density. In this study, a strategy for regulating shell thickness is proposed to induce dielectric polarization, resulting in improved dielectric constant and breakdown strength of PVDF-based nanocomposite incorporated by core-shell structured BT@SO nanoparticles. Compared to pure PVDF, the dielectric constant and breakdown strength of PVDF/BT@SO are increased by 82.2% and 61.3%, respectively, leading to a significantly enhanced discharge energy density of 352%, up to 12.2 J/cm(3). The study provides valuable insights into the interface control mechanism of core-shell nanostructure and offers a theoretical basis for designing polymer nanocomposites with high energy storage density.
POLYMER COMPOSITES
(2023)
Article
Materials Science, Multidisciplinary
Farooq Aslam, Guanghao Qu, Yang Feng, Shengtao Li
Summary: The interfacial region between the polymeric matrix and nanofiller is crucial in determining the electrical insulation properties of nanocomposites. This study investigates the effects of incorporating different types of polyhedral oligomeric silsesquioxane (POSS) into epoxy (EP) on the interfacial traps and breakdown strength. It is found that adding acryloxypropyl POSS (AP-POSS) improves the breakdown strength compared to both pristine EP and octaphenyl POSS (OP-POSS). Molecular simulation and experiments reveal that the compatibility between EP/POSS and trap depth depends on the interfacial interaction energy and crosslinking density. The side groups of AP-POSS have a larger number of localized energy states and higher electron affinity (EA), which can tailor deeper traps and restrict the mobility of electrons in EP/AP-POSS. The interfacial compatibility of POSS side groups with EP tunes the interfacial traps and dielectric characteristics.
ORGANIC ELECTRONICS
(2023)
Article
Materials Science, Multidisciplinary
Yudi Zhao, Manlin Yuan, Litong Wang, Xin Lu, Zhong Xin
Summary: In this study, a bio-based benzoxazine monomer was synthesized using a solvent-free method and pyrogallol was used as a curing catalyst. The resulting PC-s/py/POSS nanocomposites showed good thermal stability and water resistance, as well as low curing temperature and dielectric constant, making them promising for low dielectric applications in microelectronic materials.
MACROMOLECULAR MATERIALS AND ENGINEERING
(2022)
Article
Polymer Science
You Yuan, Jingyu Lin, Xinhua Wang, Jun Qian, Peiyuan Zuo, Qixin Zhuang
Summary: This study introduces a core-double-shell-structured iron(II,III) oxide@barium titanate@silicon dioxide/polyetherimide (Fe3O4@BaTiO3@SiO2/PEI) nanocomposite, which possesses high-temperature durability, high energy storage density, and efficient charge-discharge performance. The nanocomposite achieves a dielectric constant of 10.6, a dielectric loss of 0.017, a high energy density of 5.82 J cm(-3), and a charge-discharge efficiency (& eta;) of 72% with a filler content of 9 wt%. This research provides new insights and experimental evidence for the design and development of high-performance dielectric materials, having significant implications for electronic devices and energy storage.
Review
Materials Science, Multidisciplinary
Lian Cheng, Huayun Gao, Kai Liu, Hua Tan, Pengyuan Fan, Yang Liu, Yongming Hu, Zilin Yan, Haibo Zhang
Summary: The demand for high-energy-density dielectric materials is increasing in the field of capacitive energy storage, especially in electronic devices and electrical systems. Polymer-based dielectric nanocomposites with improved properties have gained widespread interest due to their potential for high charge-discharge rates and power densities. This study focuses on multilayer structure polymer-based dielectric nanocomposites and discusses their breakdown mechanism and simulation, as well as highlighting the need for further research in developing novel topological structures.
MACROMOLECULAR MATERIALS AND ENGINEERING
(2022)
Article
Chemistry, Physical
Xinyao Ni, Xinhua Wang, Jingyu Lin, Xiaoyun Liu, Zhong-Kai Cui, Peiyuan Zuo, Qixin Zhuang
Summary: This paper introduces a polymer film capacitor with stable dielectric properties under extreme environments. By growing reduced polyaniline (R-PANI) in the form of vertically oriented nanorods on the surface of porous carbon embedded with ultrafine BaTiO3, a hierarchical microcapacitor structure is formed. The surface topology modulation of R-PANI significantly increases the aspect ratio of the nanoparticles, thereby suppressing leakage current and limiting dielectric loss. The nanocomposite exhibits excellent dielectric-thermal stability and high performance in terms of breakdown strength, dielectric constant, energy density, and charge-discharge efficiency.
MATERIALS TODAY ENERGY
(2023)
Article
Materials Science, Composites
Md A. Wahab, He Chaobin, Tariq Altalhi, Munirah D. Albaqami, Zeid A. Alothman, Rezwanul Haque
Summary: This study successfully reduced the dielectric constant by adding EMO fillers into polymer nanocomposites. Characterization techniques confirmed the importance of EMO and functionalized EMO in enhancing the performance of the composites.
COMPOSITES SCIENCE AND TECHNOLOGY
(2021)
Article
Chemistry, Physical
Zhangmeng Luo, Shuaibing Gao, Di Wu, Chao Chen, Meng Shen, Yongming Hu, Haitao Huang, Shenglin Jiang, Yunbin He, Qingfeng Zhang
Summary: (Pb0.97La0.02)(Zr0.93Sn0.03Ti0.04)O-3 (PLZST) antiferroelectrics (AFEs) @dopamine (DA)/polyetherimide (PEI)-Al2O3/PEI bilayer nanocomposites were designed and developed for efficient electrostatic energy storage at high temperature. The bilayer nanocomposites exhibit improved breakdown strength and high discharged energy density.
MATERIALS TODAY ENERGY
(2023)
Article
Chemistry, Inorganic & Nuclear
Akanksha Agarwal, Babasaheb R. Sankapal
Summary: This research demonstrates the feasibility of designing a flexible all-solid-state supercapacitor using chemically grown Ni3P2O8 lamellar microstructured electrode embedded with carboxy methyl cellulose-Na2SO4 gel electrolyte. The symmetric device exhibited a wide working voltage window, high specific energy and specific power, as well as prolonged cycle life and high deformation tolerance, making it suitable for advanced flexible energy storage applications.
DALTON TRANSACTIONS
(2022)
Article
Nanoscience & Nanotechnology
Liang Sun, Zhicheng Shi, Liang Liang, Jiufeng Dong, Zizhao Pan, Huanlei Wang, Zhe Gao, Yong Qin, Runhua Fan, Hong Wang
Summary: Polymer dielectrics have gained significant attention worldwide due to their potential for pulsed power capacitors. This study demonstrates that linear/nonlinear layered composites can effectively balance energy density and efficiency, and further enhancement in energy density is desired for miniaturization of electronic devices. The introduction of a novel class of core-shell structured graphene@titanium dioxide nanoboxes into poly(vinylidene fluoride-hexafluoropropylene)-poly(ether imide) double-layer films substantially enhances the energy density, breakdown strength, and efficiency. These nanocomposites also showcase excellent power densities and cycling stabilities, making them highly promising for advanced pulsed power capacitors.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Polymer Science
Jiale Qiao, Haiwei Mu, Chao Liu, Zhaoting Liu
Summary: Composite films prepared by blending high-entropy spinel ferrite nanofibers with PVDF exhibited good performance under the influence of a magnetic field. The 3 vol% 7FO/PVDF film treated in a 0.8 T magnetic field for 3 min showed a maximum discharge energy density of 6.23 J/cm(3), efficiency of 58%, and beta-phase content of 51%. Additionally, the dielectric constant and dielectric loss were 13.3 and 0.035, respectively, at a frequency of 1 kHz.
Article
Materials Science, Composites
S. Kurinchyselvan, A. Chandramohan, A. Hariharan, P. Gomathipriya, M. Alagar
COMPOSITE INTERFACES
(2020)
Article
Polymer Science
V. Selvaraj, T. R. Raghavarshini, M. Alagar
HIGH PERFORMANCE POLYMERS
(2020)
Article
Chemistry, Applied
M. Manoj, A. Kumaravel, R. Mangalam, P. Prabunathan, A. Hariharan, M. Alagar
JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH
(2020)
Article
Polymer Science
V. Selvaraj, K. P. Jayanthi, K. Arunkumar, S. Jeyaram, T. Geethakrishnan, M. Alagar
JOURNAL OF POLYMER RESEARCH
(2020)
Article
Polymer Science
P. Prabunathan, A. Vasanthakumar, M. Manoj, A. Hariharan, M. Alagar
JOURNAL OF POLYMER RESEARCH
(2020)
Article
Engineering, Environmental
Arumugam Hariharan, P. Prabunathan, S. S. Subramanian, M. Kumaravel, Muthukkarupan Alagar
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2020)
Article
Engineering, Environmental
Govindraj Latha, Arumugam Hariharan, Pichaimani Prabunathan, Muthukaruppan Alagar
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2020)
Article
Materials Science, Multidisciplinary
M. Nithya, M. Alagar, B. Sundaresan
Article
Materials Science, Composites
Selvaraj Vaithilingam, Raghavarshini ThangavelRavivarman, Alagar Muthukaruppan
POLYMER COMPOSITES
(2020)
Article
Engineering, Chemical
Vaithilingam Selvaraj, Thangavel Ravivarman Raghavarshini, Muthukaruppan Alagar
POLYMER ENGINEERING AND SCIENCE
(2020)
Article
Polymer Science
Gunasekaran Arun Kumar, Ayyavu Chandramohan, Ponnaiah Gomathi Priya, Muthukaruppan Alagar
POLYMER INTERNATIONAL
(2020)
Article
Materials Science, Characterization & Testing
Manokaran Vadivel, Moses Suresh Chandra Kumar, Jabbar Abbas Mohaideen, Muthukaruppan Alagar, Murugesan Sankarganesh, Jeyaraj Dhaveethu Raja
POLYMERS & POLYMER COMPOSITES
(2020)
Article
Polymer Science
Prabunathan Pichaimani, Hariharan Arumugam, Dineshkumar Gopalakrishnan, Balaji Krishnasam, Alagar Muthukaruppan
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
(2020)
Article
Polymer Science
Siraimeettan Kurinchyselvan, Ayyavu Chandramohan, Arumugam Hariharan, Ponnaiah Gomathipriya, Muthukaruppan Alagar
Summary: Two different benzoxazine monomers were synthesized and their molecular structures confirmed using spectroscopy tools. The thermal stability of the nanocomposites was increased by reinforcing with functionalized MCM-41 and the dielectric properties were studied, showing ultra-low dielectric constant values. These hybrid composites can be used as adhesives, sealants, and encapsulants in high-performance microelectronics applications.
Article
Engineering, Chemical
Arumugam Hariharan, Pichaimani Prabunathan, Manickam Manoj, Muthukaruppan Alagar
POLYMER ENGINEERING AND SCIENCE
(2020)
