High-Performance Bamboo Steel Derived from Natural Bamboo

• DOI: 10.1021/acsami.0c18239
• Publication Date: 2020-12-23T18:56:37Z
• Authors: You-Yong Wang; Xiang-Qian Wang; Yuan-Qing Li; Pei Huang; Bo Yang; Ning Hu; Shao-Yun Fu
• Keywords: Hemicellulose

It is highly desirable to develop green and renewable structural materials from biomaterials replace synthetic involved civil engineering aerospace industries. Herein, we put forward a facile but effective top–down strategy convert natural bamboo into steel. The fabrication process of steel involves the removal lignin hemicellulose, freeze-drying followed by epoxy infiltration, densification combined with in situ solidification. prepared super-strong composite material high specific tensile strength (302 MPa g–1 cm3), which higher than that (227 cm3) conventional demonstrates 407.6 MPa, record flexural 513.8 toughness 14.08 MJ/m3, improved 360, 290, 380% over those bamboo, respectively. Particularly, mechanical properties are highest among biofiber-reinforced polymer composites reported previously. well-preserved scaffolds assure integrity fibers, while under pressure results high-fiber volume fraction an hydrogen bonding adjacent resin impregnated enhances stress transfer because its chemical crosslinking cellulose molecules. These endow superior performance. Furthermore, excellent thermal insulating capability low conductivity (about 0.29 W/mK). In addition, shows coefficient expansion 6.3 × 10–6 K–1) very high-dimensional stability moisture attack. fabricating high-performance abundant as raw attractive for sustainable development materials.