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Sang Y, Cui C, Zhao Y, Zhang X, Zhang Z, Wang F, Liu R, Sui C, He X, Wang C. A single carbon nanotube-entangled high-performance buckypaper with tunable fracture mode. Phys Chem Chem Phys 2024; 26:4135-4143. [PMID: 38226650 DOI: 10.1039/d3cp04555b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2024]
Abstract
It is well known that the traditional buckypaper (BP) is composed of a certain number of short carbon nanotubes (CNTs) intertwined with each other and sliding always happens when the BP is under tensile and impact loading, which results in inferior mechanical properties compared to single CNTs. In this work, a highly-entangled single-wire BP (SWBP) structure is constructed by a modified self-avoiding random walk approach. The in-plane mechanical properties and impacting behaviors of the SWBPs with different entanglement degrees and interface frictions are systematically investigated via newly developed coarse-grained molecular dynamics (CGMD) simulation. A coarse-grained method can effectively reflect the inter-tube van der Waals (vdW) interactions and the mechanical behaviors of CNTs, including tension, bending and adhesion. In this work, from the tensile simulations of the SWBP, the results showed that the self-locking mechanism between entangled CNTs could significantly enhance the tensile resistance of the film. Besides, the mechanical properties of the SWBP are highly dependent on the entanglement degree and the interface friction between CNTs. Furthermore, two distinct fracture modes, ductile fracture and brittle fracture, are revealed, which can be efficiently controlled by changing the related friction between CNTs. From the impacting simulations, it is found that the impacting performance can be effectively tuned by adjusting the entanglement degree of the film. In addition, the kinetic energy of the projectile could be rapidly dissipated through the stretching and bending of CNTs in the SWBP. This work provides an in-depth understanding of the effect of interface friction and entanglement degree on the mechanical properties of the buckypaper and provides a reference for the preparation of strong CNT-based micromaterials.
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Affiliation(s)
- Yuna Sang
- School of Astronautics, Harbin Institute of Technology, Harbin 150001, China.
| | - Chongxiao Cui
- School of Astronautics, Harbin Institute of Technology, Harbin 150001, China.
| | - Yushun Zhao
- School of Astronautics, Harbin Institute of Technology, Harbin 150001, China.
- National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, Harbin Institute of Technology, Harbin 150080, China
| | - Xiuping Zhang
- Faculty of Hepato-Pancreato-Biliary Surgery, Chinese PLA General Hospital, Beijing, China
| | - Zhuochao Zhang
- Faculty of Hepato-Pancreato-Biliary Surgery, Chinese PLA General Hospital, Beijing, China
| | - Fei Wang
- Faculty of Hepato-Pancreato-Biliary Surgery, Chinese PLA General Hospital, Beijing, China
| | - Rong Liu
- Faculty of Hepato-Pancreato-Biliary Surgery, Chinese PLA General Hospital, Beijing, China
| | - Chao Sui
- National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, Harbin Institute of Technology, Harbin 150080, China
- Shenzhen STRONG Advanced Materials Research Institute Co., Ltd, Shenzhen 518000, China
| | - Xiaodong He
- National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, Harbin Institute of Technology, Harbin 150080, China
- Shenzhen STRONG Advanced Materials Research Institute Co., Ltd, Shenzhen 518000, China
| | - Chao Wang
- School of Astronautics, Harbin Institute of Technology, Harbin 150001, China.
- National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, Harbin Institute of Technology, Harbin 150080, China
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Sliozberg YR, Kröger M, Henry TC, Datta S, Lawrence BD, Hall AJ, Chattopadhyay A. Computational design of shape memory polymer nanocomposites. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.123476] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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Trakakis G, Tomara G, Datsyuk V, Sygellou L, Bakolas A, Tasis D, Parthenios J, Krontiras C, Georga S, Galiotis C, Papagelis K. Mechanical, Electrical, and Thermal Properties of Carbon Nanotube Buckypapers/Epoxy Nanocomposites Produced by Oxidized and Epoxidized Nanotubes. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E4308. [PMID: 32992513 PMCID: PMC7579272 DOI: 10.3390/ma13194308] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 09/24/2020] [Accepted: 09/25/2020] [Indexed: 11/16/2022]
Abstract
High volume fraction carbon nanotube (CNT) composites (7.5-16% vol.) were fabricated by the impregnation of CNT buckypapers into epoxy resin. To enhance the interfacial reaction with the epoxy resin, the CNTs were modified by two different treatments, namely, an epoxidation treatment and a chemical oxidation. The chemical treatment was found to result in CNT length severance and to affect the porosity of the buckypapers, having an important impact on the physico-mechanical properties of the nanocomposites. Overall, the mechanical, electrical, and thermal properties of the impregnated buckypapers were found to be superior of the neat epoxy resin, offering an attractive combination of mechanical, electrical, and thermal properties for multifunctional composites.
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Affiliation(s)
- George Trakakis
- Foundation of Research and Technology Hellas, Institute of Chemical Engineering Sciences (ICE-HT), P.O. Box 1414, GR-26504 Patras, Greece; (G.T.); (L.S.); (J.P.); (C.G.)
| | - Georgia Tomara
- Department of Physics, University of Patras, 26504 Rio Patras, Greece; (G.T.); (C.K.); (S.G.)
| | - Vitaliy Datsyuk
- Physics Department, Institute of Experimental Physic, Free University Berlin, Arnimallee 14, 14195 Berlin, Germany;
| | - Labrini Sygellou
- Foundation of Research and Technology Hellas, Institute of Chemical Engineering Sciences (ICE-HT), P.O. Box 1414, GR-26504 Patras, Greece; (G.T.); (L.S.); (J.P.); (C.G.)
| | - Asterios Bakolas
- School of Chemical Engineering, National Technical University of Athens, GR-15773 Athens, Greece;
| | - Dimitrios Tasis
- Department of Chemistry (Section of Physical Chemistry), University of Ioannina, 45110 Ioannina, Greece;
| | - John Parthenios
- Foundation of Research and Technology Hellas, Institute of Chemical Engineering Sciences (ICE-HT), P.O. Box 1414, GR-26504 Patras, Greece; (G.T.); (L.S.); (J.P.); (C.G.)
| | - Christoforos Krontiras
- Department of Physics, University of Patras, 26504 Rio Patras, Greece; (G.T.); (C.K.); (S.G.)
| | - Stavroula Georga
- Department of Physics, University of Patras, 26504 Rio Patras, Greece; (G.T.); (C.K.); (S.G.)
| | - Costas Galiotis
- Foundation of Research and Technology Hellas, Institute of Chemical Engineering Sciences (ICE-HT), P.O. Box 1414, GR-26504 Patras, Greece; (G.T.); (L.S.); (J.P.); (C.G.)
- Department of Chemical Engineering, University of Patras, GR-26504 Patras, Greece
| | - Kostas Papagelis
- Foundation of Research and Technology Hellas, Institute of Chemical Engineering Sciences (ICE-HT), P.O. Box 1414, GR-26504 Patras, Greece; (G.T.); (L.S.); (J.P.); (C.G.)
- School of Physics, Department of Solid State Physics, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
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The effects of anionic surfactant on the mechanical, thermal, structure and morphological properties of epoxy–MWCNT composites. Polym Bull (Berl) 2019. [DOI: 10.1007/s00289-019-02695-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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