Bio-based hot-melt adhesive from xylan

Ziwen Lv, Xueqing Yan, Siyu Jia, Jing Pan, Xiang Hao, Gegu Chen, Baozhong Lü, Jun Rao () and Feng Peng ()
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Ziwen Lv: Beijing Forestry University
Xueqing Yan: Beijing Forestry University
Siyu Jia: Beijing Forestry University
Jing Pan: Beijing Forestry University
Xiang Hao: Beijing Forestry University
Gegu Chen: Beijing Forestry University
Baozhong Lü: Beijing Forestry University
Jun Rao: Beijing Forestry University
Feng Peng: Beijing Forestry University

Nature Sustainability, 2025, vol. 8, issue 7, 827-836

Abstract: Abstract Adhesives are ubiquitous in industries and daily life. However, conventional fossil-derived adhesives pose substantial health and environmental risks during manufacturing and utilization. The development of nontoxic high-performance adhesives from renewable feedstocks is therefore highly desired but remains technically challenging. Here we report a high-performing hot-melt adhesive—glue that is applied in a hot molten state—derived from a byproduct of the pulp industry, xylan, a type of hemicellulose. Under optimal conditions, the lap-shear strength between wood chips can reach approximately 30 MPa, surpassing that of classic epoxy resins and far exceeding that of a commercial hot-melt adhesive (ethylene vinyl acetate). Furthermore, the xylan hot-melt adhesive exhibits excellent reusability for multiple applications, retaining more than 100% of its original adhesion strength even after ten reuse cycles. Toxicity tests show good biocompatibility for xylan hot-melt adhesive. Overall, this work provides useful insights into the design of high-performance, reusable, bio-based adhesives for enhanced sustainability.

Date: 2025
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DOI: 10.1038/s41893-025-01579-9

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