Article
Materials Science, Composites
Ting-Ting Li, Yuxiao Wang, Yanting Wang, Fei Sun, Jiawen Xu, Ching-Wen Lou, Jia-Horng Lin
Summary: The study found that a CNT/Gr ratio of 1:1 facilitated the creation of co-continuous double percolation structures and increased the electronic conductivity of the matrices. The composite films also exhibited good thermal stability and hydrophobicity. However, the incompatibility between PP and PC resulted in brittleness, leading to the addition of TPU to improve flexibility, although this adversely affected the conductivity.
POLYMER COMPOSITES
(2021)
Article
Polymer Science
Huagen Xu, Muchao Qu, Qiancheng Yang, Dirk W. Schubert
Summary: PS/PBMA/CB and PS/PChMA/CB ternary composite films with different polymer blend ratios were prepared through solution casting, and the percolation thresholds of all composite films before and after thermal annealing were determined. As compatibility between polymer blends increased, the behavior of phi(c) in the ternary composite films changed.
JOURNAL OF POLYMER ENGINEERING
(2021)
Article
Energy & Fuels
Heegyeom Jeon, Jeong Ho Na, Yong Seok Kim, Seung-Keun Park, Youngjae Yoo
Summary: In this study, wave-selective emitter coolers were fabricated using glass bubbles and barium sulfate, and polyacrylonitrile nanofibers were electrospun on these coolers. The optical properties and cooling power were analyzed based on the ratio of glass bubbles and barium sulfate, as well as the electrospinning conditions. The cooler with the added electrospinning layer showed higher reflectivity and cooling power compared to the cooler containing only polydimethylsiloxane/glass bubbles and barium sulfate. This study improves the performance of previously studied passive radiative cooling.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2023)
Article
Physics, Applied
R. Belhimria, Z. Samir, S. Boukheir, S. Soreto Teixeira, A. Len, A. Szakal, M. E. Achour, A. Anson-Casaos, M. El Hasnaoui, L. C. Costa, J. M. Gonzalez-Dominguez
Summary: This study aims to establish a correlation between the electrical and structural properties of ternary composites by adding conductive fillers to an insulating polyester matrix. The study found that the electrical conductivity exhibited frequency and temperature dependence, and the inclusion of MWCNT and Gr resulted in changes in the conductivity behavior.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2023)
Article
Polymer Science
Meng-Yan Gao, Lei Zhai, Song Mo, Yan Jia, Yi Liu, Min-Hui He, Lin Fan
Summary: Polyimide-based composite films with high thermal conductivity, mechanical property, and electrical insulating performance are urgently needed. The surface modification by grafting polyimide brushes on boron nitride significantly enhances interfacial interaction and compatibility, reducing defects and interfacial thermal resistance. The properties of composite films, including tensile strength and thermal conductivity, improved significantly when using polyimide-grafted boron nitride.
CHINESE JOURNAL OF POLYMER SCIENCE
(2023)
Article
Materials Science, Ceramics
Guohua Fan, Ting Feng, Yunpeng Qu, Chuncheng Hao, Yao Liu
Summary: In this study, carbon nanotubes/TiN/CaCu3Ti4O12 ternary composites were prepared, and the effects of dual fillers on the dielectric properties of the composites were investigated. The composites exhibited a capacitive-inductive transition and negative permittivity, which was regulated by changing the filler content or adjusting the microstructure. The conduction loss dominated the dielectric loss mechanism of the composites. The clarification of the realization and regulation mechanism of negative permittivity provides insights for the preparation and development of negative permittivity materials.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Xi Yang, Xuefei Wang, Yan Liu, Bo Liang, Jie Hu, Hao Huang
Summary: Constructing a double heterojunction photocatalyst (CNNS/Co3O4@CoP) significantly enhances the photocatalytic degradation and hydrogen production activity through synergistic effects. The experimental results demonstrate that the double heterojunction can promote charge transfer and separation, prolong the lifetime of photogenerated carriers, and improve the catalytic efficiency.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Wenjie Zhao, Meng Zhou, Lizhang Lv, Heqing Fu
Summary: This study developed a self-healing, conductive, and magnetic ZnFe2O4/MCNT/PPy ternary composite hydrogel based on PVA, with high stretchability, good electrical conductivity, magnetism, and excellent self-healing property. The novel composite hydrogels are expected to have potential applications in electronic skins, drug delivery carriers, electromagnetic interference shielding, and even 3D printing of human organs.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Polymer Science
Ali Tarhini, Ali Tehrani-Bagha, Michel Kazan, Brian Grady
Summary: This study investigates the impact of graphene flake size on the properties of PVDF-HFP composites, demonstrating that larger graphene flakes result in higher electrical and thermal conductivity, as well as tensile strength. The composite films with larger graphene flakes achieved ultra-high in-plane electrical conductivity, in-plane thermal conductivity, and tensile strength. These values are reported to be the highest among PVDF-based composites in the literature.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Materials Science, Ceramics
Manish Patel, J. Janardhana Reddy, V. V. Bhanu Prasad
Summary: A new high thermal conductive AlN-ZrB2 dielectric-conductor composite was developed for microwave absorption applications. The microstructure of the composite comprised of AlN, ZrB2 and Y3Al5O12 phases, and exhibited high thermal conductivity. The dielectric constant near the percolation threshold for AlN-ZrB2 composite was around 26-27.
CERAMICS INTERNATIONAL
(2021)
Article
Multidisciplinary Sciences
Eylon Persky, Naor Vardi, Ana Mafalda R. V. L. Monteiro, Thierry C. van Thiel, Hyeok Yoon, Yanwu Xie, Benoit Fauque, Andrea D. Caviglia, Harold Y. Hwang, Kamran Behnia, Jonathan Ruhman, Beena Kalisky
Summary: Macroscopic properties usually follow algebraic scaling laws near phase transitions. In this study, the authors investigated the scaling properties of the metal-insulator transition at the LaAlO3/SrTiO3 interface, finding that coupling between structural and electronic properties prevents the universal behavior.
NATURE COMMUNICATIONS
(2021)
Article
Biochemistry & Molecular Biology
Mondli Abednicko Masanabo, Suprakas Sinha Ray, M. Naushad Emmambux
Summary: This study investigates the effect of adding different concentrations of sodium hydroxide on the compatibility and material properties of thermoplastic starch-zein composite films produced by a twin-screw extruder. The results show that the addition of sodium hydroxide reduces the size of zein aggregates and improves the elongation at break. Therefore, compatible thermoplastic starch-zein composite films with improved material properties can be produced by adding 0.2M sodium hydroxide.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Multidisciplinary Sciences
Anthony Camus, Manuel Reali, Michael Rozel, Mariia Zhuldybina, Francesca Soavi, Clara Santato
Summary: Melanins are bio-pigments found in plants and animals. Sepia melanin, a bio-sourced eumelanin extracted from cuttlefish ink sac, shows high electronic conductivity in flexographically printed films, indicating the potential of bio-sourced materials in organic electronics.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Chemistry, Physical
Saurabh K. Bose, Joshua B. Mallinson, Edoardo Galli, Susant K. Acharya, Chloe Minnai, Philip J. Bones, Simon A. Brown
Summary: This research discovers that discontinuous metal films formed through simple evaporation processes exhibit brain-like behavior in electrical signal transmission, mimicking cortex activity and meeting the criteria for criticality. These findings suggest the potential use of such films as a platform for brain-inspired computing.
NANOSCALE HORIZONS
(2022)
Article
Polymer Science
Zhekun Liu, Fantao Meng, Xianggang Tang, Chengzhuang Su, Qinglin Mu, Guannan Ju
Summary: In this study, PBAT/CaCO3 composite films were prepared by incorporating nano-sized calcium carbonate fillers into the biodegradable material PBAT. The effects of particle size, content, and titanate coupling agent modification on the properties of the composite films were investigated. The results showed that the addition of modified CaCO3 improved the overall performance of PBAT/CaCO3 composite films, enhancing thermal stability and crystallization. Furthermore, the modified CaCO3 increased water resistance and reduced water vapor permeability of the films when a suitable amount of titanate coupling agent was added.
Article
Engineering, Environmental
Chao Liu, Yongqiang Guo, Xinjing Wei, Chao Wang, Muchao Qu, Dirk W. Schubert, Chunhua Zhang
CHEMICAL ENGINEERING JOURNAL
(2020)
Article
Engineering, Manufacturing
Yijing Qin, Muchao Qu, Yamin Pan, Chunhua Zhang, Dirk W. Schubert
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2020)
Article
Polymer Science
Huagen Xu, Dirk W. Schubert
JOURNAL OF POLYMER RESEARCH
(2020)
Article
Materials Science, Multidisciplinary
Huagen Xu, Dirk W. Schubert
MACROMOLECULAR MATERIALS AND ENGINEERING
(2020)
Article
Polymer Science
Guanda Yang, Dirk W. Schubert, Fritjof Nilsson, Muchao Qu, Michael Redel
MACROMOLECULAR THEORY AND SIMULATIONS
(2020)
Article
Nanoscience & Nanotechnology
Muchao Qu, Yijing Qin, Yue Sun, Huagen Xu, Dirk W. Schubert, Kai Zheng, Wei Xu, Fritjof Nilsson
ACS APPLIED MATERIALS & INTERFACES
(2020)
Article
Materials Science, Composites
Xiaoling Luo, Muchao Qu, Dirk W. Schubert
Summary: This study revealed the relationship between the exponent t and the sample thickness for the first time. The conductivity in the Z direction increases with sample thickness, while the conductivity in the XY plane is preferentially oriented. The percolation thresholds in the three directions were found to be approximately equal, independent of thickness and measurement direction.
POLYMER COMPOSITES
(2021)
Article
Nanoscience & Nanotechnology
Muchao Qu, Yijing Qin, Wei Xu, Zhenxing Zheng, Huagen Xu, Dirk W. Schubert, Qun Gao
Summary: This study introduces a flexible strain sensor based on conductive carbon black and nitrile butadiene rubber, showing ultrahigh stretchability, outstanding sensitivity, and excellent repeatability. The sensor exhibits good sensitivity and an ultrahigh sensing range, making significant contributions to the existing knowledge of strain-sensing behavior. The development of mathematical models provides a simple low-cost method for preparing polymeric flexible strain sensors with great strain-sensing performance.
APPLIED NANOSCIENCE
(2021)
Article
Polymer Science
Huagen Xu, Muchao Qu, Qiancheng Yang, Dirk W. Schubert
Summary: PS/PBMA/CB and PS/PChMA/CB ternary composite films with different polymer blend ratios were prepared through solution casting, and the percolation thresholds of all composite films before and after thermal annealing were determined. As compatibility between polymer blends increased, the behavior of phi(c) in the ternary composite films changed.
JOURNAL OF POLYMER ENGINEERING
(2021)
Article
Polymer Science
Huagen Xu, Muchao Qu, Baoquan Chen, Qiancheng Yang, Dirk W. Schubert
Summary: In this study, a series of percolation threshold and exponent pairs were obtained by utilizing the McLachlan equation from the percolation curves of various carbon-based fillers. The conductive properties of polymer composites with different shapes and blend ratios were investigated. The results showed that the exponents for different fillers were different from the universal value of 2.0. Scanning electron microscopy revealed the microscopic morphology of different fillers, and a schematic diagram illustrated the differences in conductive pathways formed by different fillers.
JOURNAL OF POLYMER RESEARCH
(2022)
Article
Polymer Science
Huagen Xu, Muchao Qu, Qiancheng Yang, Baoquan Chen
Summary: In this study, the development and investigation of ink-jet 3D printing materials were conducted. A UV-thermal dual-curable prepolymer was synthesized and used in liquid crystal display (LCD) 3D printing material, leading to the development of a UV-thermal dual-cured 3D printing material. The effects of different light stabilizers, photoinitiator content, and thermal annealing time on the mechanical properties of ink-jet 3D printed samples were studied. The deblocking effect of blocked isocyanate in the synthesized resin was analyzed using FTIR. The microscopic morphology of the UV-thermal dual-cured material before and after thermal annealing was revealed using scanning electron microscopy (SEM). The dissipated energies of different 3D printing materials were also compared to indicate the difference in internal structure.
POLYMERS FOR ADVANCED TECHNOLOGIES
(2023)
