Cellulose membranes as moisture-driven actuators with predetermined deformations and high load uptake

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

7 Scopus Citations
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Author(s)

  • Xiaofeng Jiang
  • Bingkun Tian
  • Xiaoyu Xuan
  • Wanqi Zhou
  • Jianxin Zhou
  • And 3 others
  • Yaqing Chen
  • Yang Lu
  • Zhuhua Zhang

Related Research Unit(s)

Detail(s)

Original languageEnglish
Pages (from-to)146-156
Journal / PublicationInternational Journal of Smart and Nano Materials
Volume12
Issue number2
Online published6 Apr 2021
Publication statusPublished - 2021

Link(s)

Abstract

We report the synthesis of cellulose membranes from balsa wood with an exceptionally high responsivity to humidity change by chemical processing and mechanical compression. By varying the ambient humidity, the produced cellulose membranes can provide a variety of predetermined deformations, such as curve, s-like deformation and curl. The high humidity responsivity is originated from a self-maintained moisture gradient induced by an asymmetrical design of membrane surfaces, aided by the hygroscopic swelling of the cellulose. The moisture-driven actuators are then demonstrated as a three-finger gripper that can grab, hold and release objects 40 times the weight of its own. The combination of natural wood and stimuli-responsive behavior open a way to designing smart structures, actuators and soft robots with environmentally friendly, recyclable and biocompatible materials.

Research Area(s)

  • actuator, Cellulose membrane, energy conversion, relative humidity, wood

Citation Format(s)

Cellulose membranes as moisture-driven actuators with predetermined deformations and high load uptake. / Jiang, Xiaofeng; Tian, Bingkun; Xuan, Xiaoyu et al.
In: International Journal of Smart and Nano Materials, Vol. 12, No. 2, 2021, p. 146-156.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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