Strong, tough and healable elastomer nanocomposites enabled by a hydrogen-bonded supramolecular network
Article
Article Title | Strong, tough and healable elastomer nanocomposites enabled by a hydrogen-bonded supramolecular network |
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ERA Journal ID | 210299 |
Article Category | Article |
Authors | Li, Jiajun (Author), Zhang, Ping (Author), Chen, Lin (Author), Li, Gaoming (Author), Chen, Hao (Author), Jia, Chunhui (Author), Wu, Yeping (Author), Chen, Mao (Author), Zhao, Xiuli (Author) and Song, Pingan (Author) |
Journal Title | Composites Communications |
Journal Citation | 22, pp. 1-7 |
Article Number | 100530 |
Number of Pages | 7 |
Year | 2020 |
Publisher | Elsevier |
Place of Publication | Netherlands |
ISSN | 2452-2139 |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.coco.2020.100530 |
Web Address (URL) | https://www.sciencedirect.com/science/article/pii/S2452213920302588 |
Abstract | Epoxidized natural rubber (ENR)/organic-modified layered double hydroxide (O-LDH) nanocomposites were prepared in this work. The O-LDH can participate in the formation of a hydrogen-bonded supramolecular network in the ENR matrix. The network can effectively improve mechanical properties. With 20 phr O-LDH, the stress, strain and Young's modulus of the final ENR/O-LDH nanocomposite increase to 2.80 MPa, 542% and 4.70 MPa, which is 366%, 113% and 427% of the neat ENR, respectively. Meanwhile, the ENR/O-LDH nanocomposites show self-healing behavior due to the dynamic hydrogen-bonded supramolecular network and chain diffusion. The ENR/O-LDH-10 exhibited the highest self-healing efficiency of about 78% (120 °C, 12 h). When the O-LDH content exceeds 10 phr, the restricting effect of fillers weakens the ability to reconstruct hydrogen-bonding, and thus reduces the healing efficiency of the ENR nanocomposites, despite continuous increased mechanical properties. This work opens up many opportunities for creating advanced elastomers that are strong, tough and self-healable through the design of a dynamic supramolecular network. |
Keywords | Nanocomposites; Mechanical properties; Self-healing; Hydrogen-bonded supramolecular network |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 401605. Functional materials |
401609. Polymers and plastics | |
401602. Composite and hybrid materials | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Southwest University of Science and Technology, China |
China Academy of Engineering Physics, China | |
Centre for Future Materials | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q6297/strong-tough-and-healable-elastomer-nanocomposites-enabled-by-a-hydrogen-bonded-supramolecular-network
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