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Scalable Production of Robust and Tough Biomimetic Composite by Rapid In-Situ Mineralization
Advanced Functional Materials ( IF 18.5 ) Pub Date : 2023-11-03 , DOI: 10.1002/adfm.202310096
Zhe Qiu 1, 2 , Lizhong Lang 3 , Zhengyang Yu 1 , Jiaying Zhu 1 , Yuhang Ye 1 , Yu Zou 3 , Yanjun Xie 4 , Feng Jiang 1
Affiliation  

Nacre-inspired materials with combined high strength and toughness have been widely developed and utilized for various engineering applications. However, existing preparation techniques suffer from intricate processes, high energy-consumption, and lack of scalability, all of which collectively impede the efficient production of three-dimensional materials. Here, a viable strategy is reported for the efficient and scalable production of bulk nacre-mimetic materials, drawing inspiration from the intricate structures found in both nacre and wood. The prepared millimeter-thick wooden artificial nacres (WANs) exhibit the presence of multi-hierarchical lamellar structures, organic bridges, and micro-asperities. Those features lead to the WANs exhibiting impressive mechanical performances, presenting excellent bending strength (≈93.31 MPa), toughness (≈7.40 MPa m1/2), tensile strength (≈122.59 MPa), and work of fracture (≈4.61 MJ m−3). In addition, owing to the low density (≈1.59 g cm−3), the WANs show much higher specific mechanical properties compared to nacre and related artificial nacre materials. Considering both its production process and exceptional properties, this material holds great promise for practical applications within the realm of engineering and structural fields.

中文翻译:

通过快速原位矿化大规模生产坚固耐用的仿生复合材料

具有高强度和韧性的珍珠质材料已被广泛开发并用于各种工程应用。然而,现有的制备技术工艺复杂、能耗高、缺乏可扩展性,这些都阻碍了三维材料的高效生产。在此,报告了一种可行的策略,用于高效和可扩展地生产散装珍珠母仿材料,从珍珠母和木材中发现的复杂结构中汲取灵感。制备的毫米厚木质人工珍珠层(WAN)表现出多层次层状结构、有机桥和微粗糙体的存在。这些特征使得WAN表现出令人印象深刻的机械性能,表现出优异的弯曲强度(约93.31 MPa)、韧性(约7.40 MPa m 1/2)、拉伸强度(约122.59 MPa)和断裂功(约4.61 MJ m −) 3 ).此外,由于密度低(约1.59 g cm -3),与珍珠质和相关的人造珍珠质材料相比,WANs表现出更高的机械性能。考虑到其生产工艺和卓越的性能,这种材料在工程和结构领域的实际应用中具有广阔的前景。
更新日期:2023-11-03
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