Article
Materials Science, Composites
Jong-Hyun Kim, Dong -Jun Kwon, Lawrence K. DeVries, Joung-Man Park
Summary: This study investigated the wetting, wicking, and interfacial properties of fiber reinforced composites using an innovative CF tow capillary glass tube method. The results showed that the 50C type CF exhibited better wetting and wicking compared to the other two types, and this was consistent with the interfacial shear strength results. The new CF TCGTM can be applied practically to conventional CF reinforced epoxy composites.
COMPOSITES SCIENCE AND TECHNOLOGY
(2022)
Article
Multidisciplinary Sciences
Christos Pavlou, Maria Giovanna Pastore Carbone, Anastasios C. Manikas, George Trakakis, Can Koral, Gianpaolo Papari, Antonello Andreone, Costas Galiotis
Summary: A new fabrication method was used to produce continuous cm-scale graphene/polymer nanolaminates, which showed enhanced electromagnetic interference shielding effectiveness, conductivity, and mechanical properties.
NATURE COMMUNICATIONS
(2021)
Article
Engineering, Chemical
Conghua Hou, Nan Wu, Xin Zhang, Zerui Li, Yuxing Du, Jingyu Wang
Summary: This study aims to improve the mechanical properties of HMX through coating modification and investigates the reinforcement effect of graphene materials. The results show that the thermal stability of the composite microspheres is improved, the energy dropout characteristics are enhanced, the impact sensitivity is reduced, and the compressive strength of the pressed pillars is increased.
Article
Materials Science, Multidisciplinary
Xuekuan Li, Jianing Wu, Wei Chen, Mengjin Fan, Dongxia Zhang, Xiaobiao Zuo, Lingying Pan
Summary: The interfacial adhesion and failure mechanism of carbon fiber reinforced polyimide (CF/PI) composites were investigated through micro-bond tests. High-temperature treatments showed that the interfacial shear strength (IFSS) initially increased and then decreased with increasing temperature, with composites formed by KH500 exhibiting higher performance retention. The IFSS results of composites formed by KH308 and KH500 after long-time treatments were significantly different, indicating the proper service temperature of CF/PI composites. Despite decomposition during the curing process, sizing agents still enhanced the active functionality on fiber surfaces, contributing to the interfacial adhesion of CF/PI composites at high temperature.
MATERIALS TODAY COMMUNICATIONS
(2022)
Review
Chemistry, Physical
Bozhong Zhuang, Shiyun Li, Siyang Li, Jun Yin
Summary: This review summarizes current methods to reduce PMMA residues and systematically discusses the mechanisms behind them.
Article
Materials Science, Multidisciplinary
H. M. Alhusaiki-Alghamdi
Summary: In this study, PMMA/PCL nanocomposite films were prepared using the casting method with the incorporation of low contents graphene oxide nanoparticles. The dispersion of GO acted as a reinforcement in the PMMA/PCL blend, improving the mechanical and electrical properties of the samples. The addition of GO also increased thermal stability and AC electrical conductivity of the prepared nanocomposites.
RESULTS IN PHYSICS
(2021)
Article
Polymer Science
Jing-hui Yang, Yong-sheng Zhang, Fei Xue, Dan-feng Liu, Nan Zhang, Ting Huang, Yong Wang
Summary: The study investigated the impact of graphene oxide on structural relaxation in polymer blends, revealing that graphene oxide could hinder the crystallization of PVDF while enhancing the miscibility in the amorphous phase of PVDF/PMMA. Through broadband dielectric spectroscopy, the effects of structural relaxation on dielectric properties were studied. PVDF/PMMA blends in the presence of graphene oxide exhibited higher dielectric constant and lower loss at room temperature.
Article
Materials Science, Composites
Min Wu, Han-Xiong Huang
Summary: Poly (methyl methacrylate)/polystyrene (PMMA/PS; 60/40 w/w)/reduced graphene oxide (rGO) blend nanocomposites were prepared by injecting GO suspension into the melt during extrusion, resulting in improved thermal conductivities due to the formation of more thermal conductive pathways of the rGO layers.
COMPOSITES SCIENCE AND TECHNOLOGY
(2021)
Article
Materials Science, Composites
Mohammed Abdul Kadhim, Ehssan Al-Bermany
Summary: Graphene oxide nanosheets have been successfully incorporated into a new polymer nanocomposite, showing enhanced optical properties and tunable bandgap. Various characterization techniques confirmed the fine dispersion of GO and improved performance of the nanocomposite, especially with increasing GO concentrations. These results suggest potential applications in radiation shielding, optoelectronics, and waste management.
JOURNAL OF COMPOSITE MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Ran Xiao, Mingyang Ding, Yuejiao Wang, Libo Gao, Rong Fan, Yang Lu
Summary: A novel carbon fiber-graphene oxide (CF-GO) polymer composite resin, along with mild annealing postprocess, significantly enhances the compression strength of stereolithography (SLA)-printed oct-truss (OCT) lattices. The study demonstrates that incorporating a suitable amount of CF-GO, combined with annealing treatment, can increase the mechanical properties of polymer OCT lattices by nearly 10 times.
Article
Chemistry, Physical
Haibin Cai, Botuo Zheng, Deqin Zhu, Yaqiong Wu, Ruth Cardinaels, Paula Moldenaers, Zhuofan Shen, Yu Sheng, Hu Zhu, Kai Yu, Huagui Zhang
Summary: By grafting polystyrene and poly(hydroxyethyl methacrylate) onto graphene oxide nanosheets, Janus nanosheets are formed, allowing tunable morphology in spin-coated blend films. Various film morphologies, including flat surface, cavity-network structures, droplet-matrix structures, etc. can be obtained by adjusting blend composition and Janus nanosheet loading.
APPLIED SURFACE SCIENCE
(2023)
Article
Materials Science, Biomaterials
Yufei Tang, Lei Chen, Zihao Duan, Kang Zhao, Zixiang Wu
Summary: Barium titanate (BaTiO3) is used as a bone implant material due to its piezoelectric properties and ability to promote cell growth with hydroxyapatite. A method combining directional freeze casting and self-solidification of bone cement was explored to improve the piezoelectric properties of 1-3-type BaTiO3/PMMA biopiezoelectric composites with a lamellar structure. Lamellar BaTiO3 layers and dendritic ceramic bridges on BaTiO3 pore walls enhance the compressive strength and elastic modulus of the composite, while polarized lamellar BaTiO3 can induce osteoblasts to grow along the layers.
MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS
(2021)
Article
Materials Science, Multidisciplinary
Szymon Kozlowski, Magdalena Lipinska, Miroslav Slouf, Miroslav Mrlik, Christopher M. Plummer, Marketa Ilcikova, Josef Osicka, Joanna Pietrasik
Summary: The molecular weight of a polymer is a crucial factor in determining material properties. In this study, a novel polymer blend was designed by correlating the molecular weight of poly(methyl methacrylate) (PMMA) chains tethered on graphene oxide (GO) particles with the molecular weight of the PMMA matrix. Rheological studies and TEM analyses were conducted to investigate the effects of molecular weight on blend compatibility, viscoelasticity, and morphology.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Materials Science, Composites
Zhen Wang, Wenqing Xue, Yongzhi Yang, Yuchao Li, Shuangshuang Wang, Yanhu Zhan, Wei Li, Jigong Hao, Jun-Wei Zha, Chen Liu, Yulin Cao, Zhouguang Lu
Summary: In this study, PMMA brush-modified graphene (rGO-g-PMMA) was successfully incorporated into PVDF matrix, resulting in increased dielectric constant and breakdown strength. The addition of rGO-g-PMMA also suppressed dielectric loss and improved thermal stability and mechanical strength of the obtained films. This research provides a new strategy for obtaining flexible, high strength, and large energy storage dielectric films.
COMPOSITES COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Shaoyu Zhao, Yingyan Zhang, Jie Yang, Sritawat Kitipornchai
Summary: Research shows that the use of chemically functionalized graphene fillers can effectively enhance the interaction between graphene and metal matrix, resulting in higher interfacial shear strength. The presence of shear-induced wrinkles and chemical modification can significantly increase graphene's surface roughness, leading to better interfacial interactions between graphene and the metal matrix.
