Lightweight, strong, moldable wood via cell wall engineering as a sustainable structural material

Author:

Xiao Shaoliang1ORCID,Chen Chaoji1ORCID,Xia Qinqin1ORCID,Liu Yu1ORCID,Yao Yuan2ORCID,Chen Qiongyu3ORCID,Hartsfield Matt4ORCID,Brozena Alexandra1ORCID,Tu Kunkun56ORCID,Eichhorn Stephen J.7,Yao Yonggang1ORCID,Li Jianguo1ORCID,Gan Wentao1ORCID,Shi Sheldon Q.8,Yang Vina W.9ORCID,Lo Ricco Marco9ORCID,Zhu J.Y.9ORCID,Burgert Ingo56ORCID,Luo Alan4ORCID,Li Teng3ORCID,Hu Liangbing110ORCID

Affiliation:

1. Department of Materials Science and Engineering, University of Maryland, College Park, MD 20742, USA.

2. Center for Industrial Ecology, Yale School of the Environment, Yale University, New Haven, CT 06511, USA.

3. Department of Mechanical Engineering, University of Maryland, College Park, MD 20742, USA.

4. Department of Materials Science and Engineering, The Ohio State University, Columbus, OH 43210, USA.

5. Wood Materials Science, Institute for Building Materials, ETH Zürich, 8093 Zürich, Switzerland.

6. WoodTec Group, Cellulose & Wood Materials, Empa, 8600 Dübendorf, Switzerland.

7. Bristol Composites Institute, CAME School of Engineering, University of Bristol, University Walk, Bristol BS8 1TR, UK.

8. Department of Mechanical Engineering, University of North Texas, Denton, TX 76203, USA.

9. US Department of Agriculture (USDA) Forest Products Laboratory, Madison, WI 53726, USA.

10. Center for Materials Innovation, University of Maryland, College Park, MD 20742, USA.

Abstract

Turning wood into honeycombs Wood is an attractive material for structural applications, but it usually works best as boards or sheets. Xiao et al . have developed a process for engineering hardwood that allows these sheets to be manipulated into complex structures (see the Perspective by Tajvidi and Gardner). The key is to manipulate the cell wall structure by shrinking and blasting open the fibers and vessels by drying and “water-shocking” them. This process creates a window wherein the wood can be manipulated without ripping or tearing. Honeycomb, corrugated, or other complex structures are locked in once the wood dries. —BG

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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