Volume 11 Issue 4
Aug.  2026
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Article Navigation >  Journal of Bioresources and Bioproducts  > 2026  >  11(4): 100280
Zhihao Xie, Yingzhao Fan, Yanqun Huang, Longsheng Wang, Zhiyong Zhu, Jun Li, Xin Ran, Kelu Ni, Guanben Du, Long Yang. Water-triggered adaptive polyvinyl alcohol-polysaccharide supramolecular films with switchable structural and adhesive functions[J]. Journal of Bioresources and Bioproducts, 2026, 11(4): 100280. doi: 10.1016/j.jobab.2026.100280
Citation: Zhihao Xie, Yingzhao Fan, Yanqun Huang, Longsheng Wang, Zhiyong Zhu, Jun Li, Xin Ran, Kelu Ni, Guanben Du, Long Yang. Water-triggered adaptive polyvinyl alcohol-polysaccharide supramolecular films with switchable structural and adhesive functions[J]. Journal of Bioresources and Bioproducts, 2026, 11(4): 100280. doi: 10.1016/j.jobab.2026.100280
shu

Water-triggered adaptive polyvinyl alcohol-polysaccharide supramolecular films with switchable structural and adhesive functions

doi: 10.1016/j.jobab.2026.100280
  • a.

    Yunnan Provincial Key Laboratory of Wood and Bamboo Biomass Materials, College of Materials and Chemical Engineering, Southwest Forestry University, Kunming 650224, China

  • b.

    Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains, Ministry of Education, Southwest Forestry University, Kunming 650224, China

  • c.

    School of Materials and Environment, Guangxi Minzu University, Nanning 530105, China

More Information
  • Corresponding author: E-mail address: ni_kelu@swfu.edu.cn (K. Ni); E-mail address: guanben@swfu.edu.cn (G. Du); E-mail address: lyang@swfu.edu.cn (L. Yang)
  • Received Date: 2026-02-03
  • Accepted Date: 2026-06-09
  • Rev Recd Date: 2026-06-03
    • Available Online: 2026-06-23
  • Publish Date: 2026-08-01
    Abstract

  • Polyvinyl alcohol (PVA) based films experience significant degradation in mechanical properties under high humidity conditions. This study employed ultrasonic-assisted assembly technology, utilizing the electrostatic interaction between chitosan and pectin to prepare a hybrid polysaccharide polymer (CP). Subsequently, it was blended with PVA to develop a PVA-CP supramolecular film which exhibited both water-responsive and adhesive properties. Benefiting from the reinforcement of PVA crystalline domains by a locally ordered network structure, the PVA-CP (7:3) film maintained a tensile strength of 46 MPa after 48 h of water immersion. It is noteworthy that water-responsive adaptive PVA-CP films can be transformed from bioplastics into high-performance adhesives through water activation and hot-pressing. When used to bond poplar and eucalyptus veneers in plywood production, its performance surpasses the requirements for Class Ⅱ panels of plywood. Furthermore, this film demonstrated significant application potential in multilayer plywood and exhibited an overall lower environmental footprint and cost compared to conventional petroleum-based films. This design strategy broadens multifunctional application prospects for eco-friendly, high-performance and recyclable bioplastic films. The core advantages of the films are water-responsive adaptability and bonding properties.

     

    • Declaration of competing interest
    The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
    Declaration of generative AI and AI-assisted technologies in the writing process
    We used AI-assisted tools during the initial drafting stage to refine the language in order to improve readability. It is important to clarify that AI tools were never used to generate scientific arguments, data, conclusions, or any core academic content; their role was strictly limited to linguistic assistance.
    Author contributions
    Long Yang, Guanben Du conceived and supervised the project. Zhihao Xie, Yingzhao Fan, Yanqun Huang, Longsheng Wang, Zhiyong Zhu, Jun Li, Xin Ran performed the experiments and characterizations. Long Yang, Guanben Du and Kelu Ni reviewed the paper. All authors discussed the results and commented on the manuscript. All authors have given approval to the final version of the manuscript.
    Supplementary materials
    Supplementary material associated with this article can be found, in the online version, at doi:10.1016/j.jobab.2026.100280.
    Peer review under the responsibility of Editorial Office of Journal of Bioresources and Bioproducts.
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