Self-Healable, Solvent Response Cellulose Nanocrystal/Waterborne Polyurethane Nanocomposites with Encryption Capability

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

32 Scopus Citations
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Author(s)

  • Rui Xue
  • Hui Zhao
  • Ze-Wei An
  • Yan Jiang
  • Peng Li
  • Chong-Xing Huang
  • Dean Shi
  • Guo-Hua Hu
  • Shuang-Fei Wang

Detail(s)

Original languageEnglish
Pages (from-to)5653–5662
Journal / PublicationACS Nano
Volume17
Issue number6
Online published10 Mar 2023
Publication statusPublished - 28 Mar 2023

Abstract

Cellulose nanocrystal (CNC)-based chiral nematic structure is widely used in stimulus response and sensing. A popular area of research is enhancing the mechanical characteristics and environmental adaptability of chiral nematic materials. In this paper, a flexible photonic film with selfhealing ability (FPFS) was prepared by combining waterborne polyurethane containing dynamic covalent disulfide bonds (SSWPU) with CNC. The results found that the FPFS showed excellent toughness under the action of stretching, bending, twisting, and folding. The FPFS exhibited an amazing selfhealing efficiency, which can be self-healed within 2 h at room temperature. Moreover, the FPFS could respond immediately and produce reversible color change when it was soaked in typical solvents. In addition, when ethanol was used as ink to paint on the FPFS, a visible pattern only under polarized light was formed. This study offers fresh perspectives in the areas of self-healing, biological anticounterfeiting, solvent response, and flexible photonic materials. © 2023 American Chemical Society

Research Area(s)

  • cellulose nanocrystal, waterborne polyurethane, chiral nematic, self-healing, flexible photonic materials, solvents response, anticounterfeiting, ELASTOMERS, FILMS

Citation Format(s)

Self-Healable, Solvent Response Cellulose Nanocrystal/Waterborne Polyurethane Nanocomposites with Encryption Capability. / Xue, Rui; Zhao, Hui; An, Ze-Wei et al.
In: ACS Nano, Vol. 17, No. 6, 28.03.2023, p. 5653–5662.

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