Strong, tough and healable elastomer nanocomposites enabled by a hydrogen-bonded supramolecular network

Li, Jiajun and Zhang, Ping and Chen, Lin and Li, Gaoming and Chen, Hao and Jia, Chunhui and Wu, Yeping and Chen, Mao and Zhao, Xiuli and Song, Pingan ORCID: https://orcid.org/0000-0003-1082-652X (2020) Strong, tough and healable elastomer nanocomposites enabled by a hydrogen-bonded supramolecular network. Composites Communications, 22:100530. pp. 1-7. ISSN 2452-2139


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.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Faculty/School / Institute/Centre: Current - Institute for Advanced Engineering and Space Sciences - Centre for Future Materials (1 Jan 2017 -)
Faculty/School / Institute/Centre: Current - Institute for Advanced Engineering and Space Sciences - Centre for Future Materials (1 Jan 2017 -)
Date Deposited: 01 Feb 2021 04:33
Last Modified: 11 Feb 2021 03:38
Uncontrolled Keywords: Nanocomposites; Mechanical properties; Self-healing; Hydrogen-bonded supramolecular network
Fields of Research (2008): 09 Engineering > 0912 Materials Engineering > 091202 Composite and Hybrid Materials
09 Engineering > 0912 Materials Engineering > 091209 Polymers and Plastics
09 Engineering > 0912 Materials Engineering > 091205 Functional Materials
Fields of Research (2020): 40 ENGINEERING > 4016 Materials engineering > 401605 Functional materials
40 ENGINEERING > 4016 Materials engineering > 401609 Polymers and plastics
40 ENGINEERING > 4016 Materials engineering > 401602 Composite and hybrid materials
Socio-Economic Objectives (2008): E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
Socio-Economic Objectives (2020): 28 EXPANDING KNOWLEDGE > 2801 Expanding knowledge > 280105 Expanding knowledge in the chemical sciences
28 EXPANDING KNOWLEDGE > 2801 Expanding knowledge > 280110 Expanding knowledge in engineering
24 MANUFACTURING > 2409 Industrial chemicals and related products > 240912 Rubber
Identification Number or DOI: https://doi.org/10.1016/j.coco.2020.100530
URI: http://eprints.usq.edu.au/id/eprint/40992

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