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Low-value wood for sustainable high-performance structural materials

Author

Listed:
  • Xiaofei Dong

    (Northeast Forestry University)

  • Wentao Gan

    (Northeast Forestry University)

  • Ying Shang

    (Northeast Forestry University)

  • Jianfu Tang

    (Northeast Forestry University)

  • Yaoxing Wang

    (Northeast Forestry University)

  • Zhifeng Cao

    (Northeast Forestry University)

  • Yanjun Xie

    (Northeast Forestry University)

  • Jiuqing Liu

    (Northeast Forestry University)

  • Long Bai

    (Northeast Forestry University
    University of British Columbia)

  • Jian Li

    (Northeast Forestry University)

  • Orlando J. Rojas

    (University of British Columbia)

Abstract

Wood is a renewable and eco-friendly resource with great promise to advance sustainability in various industries, particularly those associated with construction and building materials. To maximize wood uses, here we show a processing route that transforms low-value wood (residual, damaged, decayed, disposed or fractured) into lightweight and strong structural materials. The process involves delignification, combined with partial dissolution and regeneration, to expose cellulose fibrils originally present in the cell walls. The latter form strong hydrogen bonding networks at interphases, leading to a ‘healed’ wood with a mechanical strength that exceeds that of typical metals and commercial laminated wood. Moreover, recyclability as well as excellent resistance against organic solvents are demonstrated, providing a promising valorization and sustainability pathway for low-value wood.

Suggested Citation

  • Xiaofei Dong & Wentao Gan & Ying Shang & Jianfu Tang & Yaoxing Wang & Zhifeng Cao & Yanjun Xie & Jiuqing Liu & Long Bai & Jian Li & Orlando J. Rojas, 2022. "Low-value wood for sustainable high-performance structural materials," Nature Sustainability, Nature, vol. 5(7), pages 628-635, July.
    • Handle: RePEc:nat:natsus:v:5:y:2022:i:7:d:10.1038_s41893-022-00887-8
    DOI: 10.1038/s41893-022-00887-8
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