, Volume 26, Issue 5, pp 3155–3165 | Cite as

Transparent konjac glucomannan/cellulose nanofibril composite films with improved mechanical properties and thermal stability

  • Jinyu Wang
  • Xin Chen
  • Chenggang Zhang
  • Abdul Rehman Akbar
  • Zhuqun ShiEmail author
  • Quanling YangEmail author
  • Chuanxi Xiong
Original Research


Development of renewable, biodegradable and biocompatible high-performance biomass materials is in great demand for the creation of a low-carbon society. Here, a series of konjac glucomannan (KGM) nanocomposite films reinforced by 2, 2, 6, 6-tetramethylpiperidine-1-oxyl (TEMPO)-oxidized cellulose nanofibrils (TOCNs) were fabricated from aqueous system by casting pathway. The composites exhibited nanolayered structure and intermolecular hydrogen bonds formed between KGM and TOCN, resulting in their good compatibility. Moreover, the incorporation of TOCN enhanced the mechanical properties of KGM significantly. Particularly, with an increase of TOCN content from 0 to 20 wt%, the tensile strength and Young’s modulus of the composites increased from 59 MPa and 1.18 GPa to 180 MPa and 2.51 GPa, respectively; the elongation at break reached a maximum of 42.9% with 10 wt% TOCN addition, much higher than 25.6% of the neat KGM film. In addition, the composites also possessed excellent transparency and thermal stability. These biomass-based nanocomposite films are promising in the field of high-performance packaging materials.

Graphical abstract


Cellulose nanofibril Konjac glucomannan Nanocomposite film Mechanical property 



This work was supported by the National Natural Science Foundation of China (Nos. 51703177, 21704079), the Fundamental Research Funds for the Central Universities (WUT: 2017IVA107, 2017III025, 2018III009, 2018IVB022, 2018IVB041, 2018IB021), and State Key Laboratory of Pulp and Paper Engineering (No. 201765).


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Copyright information

© Springer Nature B.V. 2019

Authors and Affiliations

  • Jinyu Wang
    • 1
  • Xin Chen
    • 1
  • Chenggang Zhang
    • 1
  • Abdul Rehman Akbar
    • 1
  • Zhuqun Shi
    • 1
    • 2
    Email author
  • Quanling Yang
    • 1
    • 3
    Email author
  • Chuanxi Xiong
    • 1
  1. 1.State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, School of Materials Science and EngineeringWuhan University of TechnologyWuhanChina
  2. 2.School of Chemistry, Chemical Engineering and Life SciencesWuhan University of TechnologyWuhanChina
  3. 3.State Key Laboratory of Pulp and Paper EngineeringSouth China University of TechnologyGuangzhouChina

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