, Volume 26, Issue 18, pp 9599–9612 | Cite as

Polydopamine-coated cellulose nanocrystals as an active ingredient in poly(vinyl alcohol) films towards intensifying packaging application potential

  • Siyuan Liu
  • Yaoyao Chen
  • Changhua Liu
  • Lin Gan
  • Xiaozhou MaEmail author
  • Jin HuangEmail author
Original Research


In this research, the dopamine self-polymerization was used to coat polydopamine (PDA) on cellulose nanocrystal (CNC) surfaces, and we integrated the functionality and structural merits of the two components in poly(vinyl alcohol) (PVA) films at a nanometer scale. The results showed that coating PDA on CNCs led to a concurrent increase in strength and break elongation. With increasing PDA@CNC loading level, the Young’s modulus continuously increased, which could be ca. 3.1-fold over that of neat PVA film at a loading level of 15 wt%. Both tensile strength and breaking elongation of the nanocomposite reached the maximum values with 6 wt% PDA@CNC, which were 75.8% and 58.1% more than those of neat PVA, respectively. Besides, the maximum decomposition temperature shifted from 271.3 °C of neat PVA film to 278.5 °C of the nanocomposite containing 6 wt% PDA@CNC, and then was continuously elevated up to 328.2 °C when the PDA@CNC loading level reached 15 wt%. For packaging application, the PDA component contributed to the UV-shielding and radical-scavenging functions, and the PDA@CNC nanofiller reduced the permeability of oxygen and water–vapor into PVA-based composites. Overall, the integrated PDA@CNC nanofiller as an active ingredient enhanced the mechanical, thermal, and functional properties of the PVA-based materials, and hence intensified the potential of their packaging application.


Cellulose nanocrystals Polydopamine Poly(vinyl alcohol) Radical-scavenging Mechanical properties Barrier behaviors 



This work was supported by the National Natural Science Foundation of China (51373131) and Talent Project of Southwest University (SWU115034).

Compliance with ethical standards

Conflict of interest

The authors declare no competing financial interest.

Supplementary material

10570_2019_2749_MOESM1_ESM.doc (911 kb)
Supplementary material 1 (DOC 911 kb)


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Copyright information

© Springer Nature B.V. 2019

Authors and Affiliations

  1. 1.Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, School of Chemistry and Chemical EngineeringSouthwest UniversityChongqingPeople’s Republic of China
  2. 2.School of Chemistry, Chemical Engineering and Life SciencesWuhan University of TechnologyWuhanPeople’s Republic of China
  3. 3.Chongqing Engineering Research Center of Application Technology for 3D PrintingChongqingPeople’s Republic of China

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