Jump to main content
Jump to site search


Controlled Shape Deformation of Bilayer Film with Tough Adhesion between Nanocomposite Hydrogel and Polymer Substrate

Abstract

Shape-shifting materials have received increasing attentions owing to their promising applications in soft robotics, biomedical devices, actuator, morphing aircrafts and so on. However, their practical application is limited because of weak mechanical strength, low interfacial adhesion as well as complex preparation method. In the paper, the bilayer film was synthesized by in situ one-step free radical polymerization of soft and water-swellable nanocomposite hydrogel on the surface of the rigid and nonresponsive poly(ethylene terephthalate) (PET) film without any surface modification. The strong interfacial toughness between the hydrogel layer and the PET layer, high swelling of the soft hydrogel layer as well as high strength of the rigid PET film endowed the bilayer film with excellent self-bending behaviour. The shape deformation of bilayer films can be controlled by adjusting the geometry parameters of the bilayer film, such as the hydrogel thickness, the aspect ratio and the width of the bilayer film. Moreover, the bilayer film exhibited the excellent reversible bidirectional self-bending behaviours. In addition, the mechanisms of the driving shape transformation were discussed. We believe this work will provide a promising and simple strategy to develop novel responsive materials with controlled shape deformation.

Back to tab navigation

Supplementary files

Publication details

The article was received on 29 Jul 2018, accepted on 11 Sep 2018 and first published on 13 Sep 2018


Article type: Paper
DOI: 10.1039/C8TB01971A
Citation: J. Mater. Chem. B, 2018, Accepted Manuscript
  •   Request permissions

    Controlled Shape Deformation of Bilayer Film with Tough Adhesion between Nanocomposite Hydrogel and Polymer Substrate

    Y. Li, J. Yang, X. Yu, X. Sun, F. Chen, Z. Tang, L. Zhu, G. Qin and Q. Chen, J. Mater. Chem. B, 2018, Accepted Manuscript , DOI: 10.1039/C8TB01971A

Search articles by author

Spotlight

Advertisements