Volume 11 Issue 2
May  2026
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Article Navigation >  Journal of Bioresources and Bioproducts  > 2026  >  11(2): 100235
Zhenke Wei, Jiayu Liu, Yonggui Wang, Zefang Xiao, Yanjun Xie. Lignin nanoparticle stabilized Pickering emulsion coating for fabricating water- and oil-proof, biodegradable, and recyclable paper[J]. Journal of Bioresources and Bioproducts, 2026, 11(2): 100235. doi: 10.1016/j.jobab.2026.100235
Citation: Zhenke Wei, Jiayu Liu, Yonggui Wang, Zefang Xiao, Yanjun Xie. Lignin nanoparticle stabilized Pickering emulsion coating for fabricating water- and oil-proof, biodegradable, and recyclable paper[J]. Journal of Bioresources and Bioproducts, 2026, 11(2): 100235. doi: 10.1016/j.jobab.2026.100235
shu

Lignin nanoparticle stabilized Pickering emulsion coating for fabricating water- and oil-proof, biodegradable, and recyclable paper

doi: 10.1016/j.jobab.2026.100235

  • Key Laboratory of Bio-based Material Science and Technology (Ministry of Education), College of Materials Science and Engineering, Northeast Forestry University, Harbin 150040, China

More Information
  • Corresponding author: E-mail address: wangyg@nefu.edu.cn (Y. Wang); E-mail address: yxie@nefu.edu.cn (Y. Xie)
  • Received Date: 2025-10-21
  • Accepted Date: 2025-12-24
  • Rev Recd Date: 2025-12-17
    • Available Online: 2026-01-27
  • Publish Date: 2026-05-01
    Abstract
  • Paper derived from plant fibers is considered a highly promising alternative to non-degradable plastic packaging. However, its widespread use in packaging is limited by its poor water- and oil-proof properties. To address this challenge, this study developed a polyvinyl alcohol (PVA)/lignin nanoparticles (LNPs)/stearic acid (SA) (PLS) Pickering emulsion composite coating to fabricate high-performance biodegradable paper. In the emulsion system, the PVA acted as an oil-repellent in the aqueous phase, the SA served as a water-repellent in the oil phase, and the LNPs functioned as emulsifiers that effectively stabilized the emulsion. Owing to the synergistic effect among PVA, SA, and LNPs, the coated paper exhibited good water- and oil-proof properties (with a water contact angle of 111.2°, Cobb 60 value of 17.73 g/m2, and Kit rating exceeding 9/12), along with high mechanical strength (including a dry tensile strength of 7.12 kN/m and a wet tensile strength of 0.97 kN/m). While significantly enhancing performance, the PLS emulsion coating retained the environmental benefits of paper, could be easily removed to facilitate fiber recycling, and the coated paper was fully degradable in soil within 120 d. Overall, the PLS emulsion coating effectively enhanced the properties of paper without compromising its eco-friendly characteristics, demonstrating significant potential for promoting the substitution of plastic with paper.

     

    • CRediT authorship contribution statement
    Zhenke Wei: conceptualization, investigation, writing-original draft, writing-review and editing, visualization, methodology. Jiayu Liu: visualization. Yonggui Wang: conceptualization, writing-original draft, writing-review and editing, supervision, Resources, Methodology. Zefang Xiao: writing-review and editing. Yanjun Xie: writing-review and editing, supervision, resources.
    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.
    Supplementary materials
    Supplementary material associated with this article can be found, in the online version, at doi:10.1016/j.jobab.2026.100235.
    Peer review under the responsibility of Editorial Office of Journal of Bioresources and Bioproducts.
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