dc.contributor.author | Hu, Y | en_US |
dc.contributor.author | Chen, J | en_US |
dc.contributor.author | Yang, G | en_US |
dc.contributor.author | Li, Y | en_US |
dc.contributor.author | Dong, M | en_US |
dc.contributor.author | Li, Q | en_US |
dc.contributor.author | Yuan, H | en_US |
dc.contributor.author | Zhang, H | en_US |
dc.contributor.author | Pugno, NM | en_US |
dc.contributor.author | Jiang, J | en_US |
dc.contributor.author | Papageorgiou, DG | en_US |
dc.date.accessioned | 2024-05-17T15:36:12Z | |
dc.date.issued | 2024-05-16 | en_US |
dc.identifier.issn | 0032-3861 | en_US |
dc.identifier.uri | https://qmro.qmul.ac.uk/xmlui/handle/123456789/96957 | |
dc.description.abstract | A novel ternary composite system has been developed by combining MXene nanoplatelets with pre-polyurethane (PU) and an epoxy (EP) resin through in-situ polymerization and solution blending. Our approach aims to enhance the strength and toughness of the EP matrix while maintaining its thermal stability. The strong compatibility between isocyanate-terminated PU and hydroxyl-terminated MXene with the resin was demonstrated through chemical grafting and hydrogen bonding processes. In this ternary composite, significant improvements were observed, including a 32 % increase in tensile strength, a 46.4 % increase in flexural strength, and a 13.4 % increase in fracture toughness, even at very low filler contents of 0.05 wt% for MXene and 1 wt% for PU. A thorough examination of the fractured surfaces revealed the underlying mechanisms responsible for the improved strength and toughness. These mechanisms involve a transition from a brittle to a ductile fracture mode, which can be attributed to the combined effects of thermoplastic toughness, strong chemical bonding between PU and EP, and crack-anchoring and bridging effects facilitated by MXene nanoplatelets. The results presented herein are relevant to a wide range of applications in aerospace, automotive, electronics and various other industries where durability and thermomechanical performance of materials are critical. | en_US |
dc.relation.ispartof | Polymer | en_US |
dc.rights | This item is distributed under the terms of the Creative Commons Attribution 4.0 Unported License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. | |
dc.title | In-situ hybridization of an epoxy resin using polyurethane and MXene nanoplatelets for thermally stable nanocomposites with improved strength and toughness | en_US |
dc.type | Article | |
dc.rights.holder | © 2024 The Authors. Published by Elsevier Ltd. | |
dc.identifier.doi | 10.1016/j.polymer.2024.127065 | en_US |
pubs.notes | Not known | en_US |
pubs.publication-status | Published | en_US |
pubs.volume | 302 | en_US |
rioxxterms.funder | Default funder | en_US |
rioxxterms.identifier.project | Default project | en_US |