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Directed Assembly of Large‐Sized, Mechanically Robust, Nacre‐Inspired Graphene Oxide/Sodium Alginate Nanocomposite Paper
Macromolecular Materials and Engineering ( IF 4.2 ) Pub Date : 2020-10-28 , DOI: 10.1002/mame.202000493 Yong Mei 1, 2 , Xuke Tang 3 , Jianchao Guo 4, 5 , Tian‐Yu Sun 3 , Yongbo Zhang 4, 5 , Ke Chen 3
Macromolecular Materials and Engineering ( IF 4.2 ) Pub Date : 2020-10-28 , DOI: 10.1002/mame.202000493 Yong Mei 1, 2 , Xuke Tang 3 , Jianchao Guo 4, 5 , Tian‐Yu Sun 3 , Yongbo Zhang 4, 5 , Ke Chen 3
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Various approaches have been exploited to copy nacreous structure into human‐made structural nanocomposites with similar structure and impressive mechanical performance. However, it is still facing a great challenge to produce large‐sized, strong, and tough, biopolymer‐based nanocomposite, especially for further scale‐up in practical application. Herein, a large‐sized and nacre‐inspired nanocomposite paper can be successfully prepared via a simple evaporation‐induced self‐assembly technique, based on assembling hybrid graphene oxide/sodium alginate (GO/SA) building blocks. Through optimizing the lamellar hybrid interfacial interactions derived from hydrogen‐bonding network, the nacre‐inspired nanocomposite achieves a unique integration of high strength (up to 350.3 MPa) and high toughness (22.4 ± 2.9 MJ m−3), are superior to natural nacre, almost all GO and SA‐related composites, and many engineering materials. The hydrogen bond‐property correlation, combined with a simple assembling technique, will provide a powerful path for the large‐scale production of lightweight, biopolymer‐based materials with excellent mechanical properties.
中文翻译：
大型，机械坚固，受珍珠层启发的氧化石墨烯/海藻酸钠纳米复合纸的定向组装
已开发出多种方法将珍珠质结构复制到具有相似结构和出色机械性能的人造结构纳米复合材料中。但是，生产大型，强韧的生物聚合物基纳米复合材料仍面临巨大挑战，尤其是在实际应用中进一步扩大规模时。在此，可以通过简单的蒸发诱导自组装技术，基于混合的氧化石墨烯/海藻酸钠（GO / SA）构建基块，成功地制备出大型且具有珍珠质的纳米复合纸。通过优化源自氢键网络的层状杂化界面相互作用，受珍珠母启发的纳米复合材料实现了高强度（高达350.3 MPa）和高韧性（22.4±2.9 MJ m -3）的独特集成）优于天然珍珠母，几乎所有与GO和SA有关的复合材料以及许多工程材料。氢键-性质的相关性，再加上简单的组装技术，将为大规模生产具有优异机械性能的轻质生物聚合物基材料提供强大的途径。
更新日期：2020-12-15
中文翻译：
大型，机械坚固，受珍珠层启发的氧化石墨烯/海藻酸钠纳米复合纸的定向组装
已开发出多种方法将珍珠质结构复制到具有相似结构和出色机械性能的人造结构纳米复合材料中。但是，生产大型，强韧的生物聚合物基纳米复合材料仍面临巨大挑战，尤其是在实际应用中进一步扩大规模时。在此，可以通过简单的蒸发诱导自组装技术，基于混合的氧化石墨烯/海藻酸钠（GO / SA）构建基块，成功地制备出大型且具有珍珠质的纳米复合纸。通过优化源自氢键网络的层状杂化界面相互作用，受珍珠母启发的纳米复合材料实现了高强度（高达350.3 MPa）和高韧性（22.4±2.9 MJ m -3）的独特集成）优于天然珍珠母，几乎所有与GO和SA有关的复合材料以及许多工程材料。氢键-性质的相关性，再加上简单的组装技术，将为大规模生产具有优异机械性能的轻质生物聚合物基材料提供强大的途径。
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