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Biobased, Self-Healable, High Strength Rubber with Tunicate Cellulose Nanocrystals


Cellulose nanocrystals represent a promising and environmental friendly reinforcing nanofiller for polymers, especially for rubbers and elastomers. Here, a simple approach via latex mixing are used to fabricate biobased, healable rubber with high strength based on epoxidized natural rubber (ENR). Tunicate cellulose nanocrystals (t-CNs) isolated from marine biomass with high aspect ratio are used to improve both mechanical properties and self-healing behavior of the material. By introducing dynamic hydrogen bonds supramolecular network between oxygenous groups of ENR and hydroxyl groups on t-CNs surface, together with chain interdiffusion in permanently but slightly cross-linked rubber, self-healing and mechanical properties are facilitated significantly of the resulted materials. Macroscopic tensile healing behavior and microscopic morphology analyses are carried out to evaluate the performance of the materials. Both t-CNs content and healing time have significant influence on healing behavior. The results indicate that a synergistic effect between molecular interdiffusion and dynamic hydrogen bonds supramolecular network leads to the improved self-healing behavior.

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Publication details

The article was received on 11 Jul 2017, accepted on 13 Sep 2017 and first published on 14 Sep 2017

Article type: Paper
DOI: 10.1039/C7NR05011A
Citation: Nanoscale, 2017, Accepted Manuscript
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    Biobased, Self-Healable, High Strength Rubber with Tunicate Cellulose Nanocrystals

    L. Cao, D. Yuan, Y. Chen and C. Xu, Nanoscale, 2017, Accepted Manuscript , DOI: 10.1039/C7NR05011A

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