Article
Materials Science, Composites
Nathan Hostettler, Pascal Hubert
Summary: The addition of polycaprolactone (PCL) and graphene to unsaturated polyester resins can significantly enhance their toughness. PCL creates phase-separated microstructures, while graphene forms self-assembled networks, both of which contribute to improved toughness and electrical conductivity.
COMPOSITES SCIENCE AND TECHNOLOGY
(2022)
Article
Chemistry, Physical
Ke Chen, Xuke Tang, Binbin Jia, Cezhou Chao, Yan Wei, Junyu Hou, Leiting Dong, Xuliang Deng, Ting-Hui Xiao, Keisuke Goda, Lin Guo
Summary: Inspired by the heterophase structure of nacre, a centimetre-sized bulk material consisting of graphene oxide (GO) and amorphous/crystalline MnO2 nanosheets adhered together with polymer-based crosslinkers was prepared, exhibiting high flexural strength and fracture toughness. Experimental and numerical analyses revealed that the ordered heterophase structure and synergistic crosslinking interactions across multiscale interfaces contribute to the superior mechanical properties of the material.
Article
Materials Science, Composites
Po-Chun Chuang, Jia-Lin Tsai
Summary: Nanocomposites with aligned graphene were successfully fabricated for crack extension detection. The aligned graphene improved the electrical conductivity of the nanocomposite, and the resistance measurements were effective in detecting crack extension in the specimens.
COMPOSITES COMMUNICATIONS
(2021)
Article
Engineering, Environmental
Da Li, E. Peng, Fei Lu, Baolong Wang, Yibo Shen, Pengxiang Liu, Li Liu, Yudong Huang, Zhen Hu
Summary: This study develops a stress-induced graphene-encapsulated liquid metal framework to enhance the fracture toughness of multifunctional epoxy nanocomposites for aerial vehicles. The reinforced nanocomposites demonstrate improved fracture toughness, high electromagnetic interference shielding effectiveness, and efficient solar de-icing capability. This research provides an alternative approach for constructing high-toughness multifunctional epoxy nanocomposites for aerial vehicles application.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Mechanics
C. Kostagiannakopoulou, T. H. Loutas, G. Sotiriadis, V Kostopoulos
Summary: This research paper investigates the impact of aspect ratio and specific surface area of Graphene Nano-Platelets on the interlaminar fracture behavior of carbon fiber-reinforced polymer composites. The study found that GNPs with higher aspect ratios and specific surface areas lead to improved interlaminar fracture toughness under both Mode I and Mode II loading compared to unmodified composites.
ENGINEERING FRACTURE MECHANICS
(2021)
Article
Chemistry, Physical
Mohannad Naeem, Hsu-Chiang Kuan, Andrew Michelmore, Sirong Yu, Adrian P. Mouritz, Sanjay S. Chelliah, Jun Ma
Summary: A green and novel method was developed for preparing epoxy/graphene nanocomposites by microwave radiation and mechanical stirring, which successfully produced surface-modified graphene platelets without the need for organic solvents and surfactants. The process resulted in exfoliated and well-dispersed graphene platelets with improved mechanical and functional properties of the epoxy resin.
Article
Materials Science, Composites
Guorui Yang, Yan Ma, Chen Liu, Lanyue Zhang, Xiangwei Li, Weifeng Du, Lei Shang, Yuhui Ao
Summary: Inspired by the strengthening effect of nanoparticles and the toughening effect of block polymers, a block polymer filler with graphene oxide (GO) was prepared, which significantly improved the mechanical properties of epoxy composites. The combination of GO and side groups promoted dispersion and toughening. This research has potential application value in the field of resin fillers and in combination with other materials.
POLYMER COMPOSITES
(2022)
Article
Construction & Building Technology
Xinchun Guan, Lingbo Yu, Hui Li
Summary: This study aims to improve the fracture properties of cementitious materials by adding graphene oxide-silica nanocomposites (GO-nanoSiO(2)). The results demonstrate that GO-nanoSiO(2) is more beneficial to improve the fracture properties of cementitious materials and the amount of nano-silica grafted on GO surface affects its enhancement effect. GO-nanoSiO(2) improves the roughness of mortar fracture surface, changes the propagation mode of cracks, and contributes to energy dissipation.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Materials Science, Composites
Masoud Haghnegahdar
Summary: This study presents an experimental design approach to optimize and predict the total work of fracture in polypropylene/EPDM nanocomposites using different graphene derivatives. The results show that using few-layer graphene and dynamic vulcanization can significantly improve the fracture performance of the nanocomposites.
POLYMER COMPOSITES
(2023)
Article
Polymer Science
Aldobenedetto Zotti, Simona Zuppolini, Anna Borriello, Valeria Vinti, Luigi Trinchillo, Domenico Borrelli, Antonio Caraviello, Mauro Zarrelli
Summary: This study investigates the effect of different mixing techniques on the thermal and mechanical properties of graphene nanoplatelets and graphene nanofibers loaded epoxy nanocomposites. Results show that ultrasonication and fluidized bed method achieve the most suitable dispersion, resulting in nanocomposites with the largest increase in glass transition temperature. The fracture toughness of the nanocomposites is improved due to the homogeneity and low scale dispersion of the carbonaceous nanostructures. The fluidized bed method is found to be the most suitable for high volume industrial production. Carbon fiber reinforced composites manufactured using this method demonstrate improved tensile, flexural, and interlaminar fracture toughness properties.
Article
Engineering, Mechanical
Md Sarower Tareq, Bodiuzzaman Jony, Shaik Zainuddin, Mohammad Al Ahsan, Mahesh Hosur
Summary: The study investigated the fatigue behavior and interlaminar fracture toughness of CFRPCs modified by graphene nanoplatelets, with results showing that adding 0.1% of nanoparticles can improve fatigue life and increase interlaminar fracture toughness.
FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES
(2021)
Article
Materials Science, Multidisciplinary
Elijah Borodin, Andrey P. Jivkov, Alexander G. Sheinerman, Mikhail Yu Gutkin
Summary: Designing new ceramic materials with specific thermo-electrical and mechanical properties is crucial for engineering applications. Recent research has shown that incorporating reduced graphene oxide (rGO) in hard ceramic matrix can enhance electrical conductivity and fracture toughness of nano-structured ceramic composites. The properties of these composites depend on the fraction and distribution of rGO inclusions, and a discrete combinatorial strategy utilizing algebraic topology and modern graph theory can be applied to design nano-structured ceramics with a superior balance between conductivity and fracture resistance.
MATERIALS & DESIGN
(2021)
Article
Chemistry, Multidisciplinary
Yahao Liu, Jian Zheng, Xiao Zhang, Yongqiang Du, Guibo Yu, Ke Li, Yunfei Jia, Yu Zhang
Summary: This study successfully prepared high-performance composites with enhanced strength and elongation at break by cross-linking HTPB chains with hyperbranched-polyamide modified graphene oxide. The composites showed significantly improved mechanical properties and low glass transition temperatures, making them promising for various applications.
Article
Multidisciplinary Sciences
Muzhi Li, Xiuya Wang, Ru Zhao, Yuanyuan Miao, Zhenbo Liu
Summary: Inspired by natural structures and properties, a novel graphene-based micro/nano structure was proposed, leading to the fabrication of bioinspired nanocomposites with outstanding performance.
SCIENTIFIC REPORTS
(2021)
Article
Polymer Science
Angel Romo-Uribe
Summary: Polyhedral oligomeric silsesquioxane (POSS) copolymerized with butyl acrylate (BA), methyl methacrylate (MMA), and acrylic acid (AA) resulted in a twofold increase in fracture energy and Young's modulus of cast films at 1 wt% content. The dispersion of POSS in the acrylic matrix and its intercalation within the molecular mesh contributed to the increase in entanglement density, leading to enhanced mechanical reinforcement and resistance to fracture.
