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Comment: relies too heavily on WP:Primary sources and has not sufficiently established WP:Notability by coverage in secondary independent and reliable sources. Youtube is not an acceptable source. microbiologyMarcus (petri dish·growths) 00:56, 29 December 2023 (UTC)
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Super Wood.[1] is a densified wood material produced by partially delignifying natural wood and subsequent densification through hot pressing. Super wood production is potentially sustainable and cost-effective, as it avoids energy-intensive manufacturing processes associated with cement and steel.[2]
Process
editA typical process to produce super wood usually involves two key steps.[1] First, a chemical treatment to partially remove lignin and hemicellulose; followed by mechanical hot-pressing at 100 °C in the second step, resulting in an approximately 80% reduction in thickness. This process effectively eliminates voids and pits in natural wood, significantly reducing defects and enhancing the strength of the processed wood. The material and technology are patented.[3]
Properties
editSuper Wood demonstrates a remarkable tensile strength of approximately 600 MPa, surpassing all previously reported densified wood materials before.[1][4]This exceptional strength is attributed to the heightened interaction, such as hydrogen bonding, Van der Waals forces, and physical entanglements, among the alignment of cellulose nanofibrils, coupled with a substantial reduction in intrinsic defects in natural wood.[1] Despite its lightweight nature (density of ~1.3 g/cm3), Super Wood exhibits specific strength higher than most structural metals and alloys. [5]
Applications
editThis universally effective strategy is applicable to various wood species. The combination of high strength, toughness, low cost, abundance, light weight, and zero greenhouse gas emission positions Super Wood as a promising sustainable structural material.[6] Its potential applications include lightweight vehicles, energy-efficient buildings,[7] advanced furniture, and more.[8]
References
edit- ^ a b c d Song, Jianwei; Chen, Chaoji; Zhu, Shuze; Zhu, Mingwei; Dai, Jiaqi; Ray, Upamanyu; Li, Yiju; Kuang, Yudi; Li, Yongfeng; Quispe, Nelson; Yao, Yonggang (2018). "Processing bulk natural wood into a high-performance structural material". Nature. 554 (7691): 224–228. Bibcode:2018Natur.554..224S. doi:10.1038/nature25476. ISSN 1476-4687. PMID 29420466. S2CID 4469909.
- ^ "LSU CEE Professor Lin Develops Superwood for Infrastructure". www.lsu.edu. Retrieved 2023-12-17.
- ^ [1], "Strong and tough structural wood materials, and methods for fabricating and use thereof", issued 2018-04-09
- ^ Researchers Make Wood Stronger than Steel, 2018-02-26, retrieved 2024-01-09
- ^ Perkins, Sid. "Stronger Than Steel, Able to Stop a Speeding Bullet--It's Super Wood!". Scientific American. Retrieved 2023-12-17.
- ^ Coghlan, Andy. "Eco-friendly nanowood is a super strong and recyclable styrofoam". New Scientist. Retrieved 2023-12-17.
- ^ Lim, XiaoZhi (2019-12-31). "The super-cool materials that send heat to space". Nature. 577 (7788): 18–20. doi:10.1038/d41586-019-03911-8. PMID 31892746.
- ^ Brown, Erik (2020-12-26). "Mankind's Next Killer App: Wood". Medium. Retrieved 2023-12-17.