SCI和EI收录∣中国化工学会会刊

Chinese Journal of Chemical Engineering ›› 2019, Vol. 27 ›› Issue (10): 2587-2595.doi: 10.1016/j.cjche.2018.11.018

• Materials and Product Engineering • Previous Articles     Next Articles

Composite bilayer films with organic compound-triggered bending properties

Ke Deng1, Zhuang Liu1,2, Jiaqi Hu1, Wenying Liu1, Lei Zhang1, Rui Xie1,2, Xiaojie Ju1,2, Wei Wang1,2, Liangyin Chu1,2   

  1. 1 School of Chemical Engineering, Sichuan University, Chengdu 610065, China;
    2 State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
  • Received:2018-09-27 Revised:2018-11-21 Online:2019-10-28 Published:2020-01-17
  • Contact: Zhuang Liu, Liangyin Chu E-mail:liuz@scu.edu.cn;chuly@scu.edu.cn
  • Supported by:
    Supported by the National Natural Science Foundation of China (21490582, 21622604), the Program for Changjiang Scholars and Innovative Research Team in University (IRT15R48) and the State Key Laboratory of Polymer Materials Engineering (sklpme2017-3-03, sklpme2014-1-01).

Abstract: Organic compounds are widely used in both industry and daily life, and composite bilayer films with organic compound-triggered bending properties are promising for applications of transducers, soft robotics, and so on. Here, a universal and straightforward strategy to generate composite bilayer films with organic compoundtriggered bending properties is demonstrated. The composite bilayer films with organic compound-triggered bending properties are designed with bilayer structures, in which one layer is a porous polymeric membrane with appropriate solubility parameter that matches the value of organic solvents in order to produce prominent affinity to the solvent molecules, and the other layer is reduced graphene oxide membrane stacked on the porous polymeric membrane as an inert layer for restraining the swelling of the polymeric membrane on one side. Guided by matching the solubility parameters between solvent and polymer, a significant bending curvature of 27.3 cm-1 is obtained in acetone vapor. The results in this study will provide valuable guidance for designing and developing functional composite materials with significant organic compound-triggered bending properties.

Key words: Responsive materials, Composite bilayer films, Organic compound-triggered bending, Graphene, Porous polymeric membranes