PDF(Pubmed)
Abstract：
The aeronautical industry demands facile lightweight and low-cost solutions to address climate crisis challenges. Graphene can be a valid candidate to tackle these functionalities, although its upscalability remains difficult to achieve. Consequently, graphene-related materials (GRM) are gathering massive attention as top-down graphite exfoliation processes at the industrial scale are feasible and often employed. In this work, environmentally friendly produced partially oxidized graphene nanosheets (POGNs) reduced by green solvents such as l-Ascorbic Acid to rGNs are proposed to deliver functional coatings based on a glass fiber composite or coated Al2024 T3 for strategic R&D questions in the aeronautical industry, i.e., low energy production, de-icing, and water uptake. In detail, energy efficiency in rGNs production is assessed via response-surface modeling of the powder conductivity, hence proposing an optimized reduction window. De-Icing functionality is verified by measuring the stable electrothermal property of an rGNs based composite over 24 h, and water uptake is elucidated by evaluating electrochemical and corrosion properties. Moreover, a mathematical model is proposed to depict the relation between the layers\' sheet resistance and applied rGNs mass per area, which extends the system to other graphene-related materials, conductive two-dimensional materials, and various substrates. To conclude, the proposed system based on rGNs and epoxy paves the way for future multifunctional coatings, able to enhance the resistance of surfaces, such as airplane wings, in a flight harsh environment.
摘要：
航空工业需要轻巧且低成本的解决方案来应对气候危机挑战。石墨烯可以是解决这些功能的有效候选者，尽管它的可升级性仍然难以实现。因此,石墨烯相关材料（GRM）正在引起广泛关注，因为工业规模的自上而下的石墨剥离工艺是可行的并且经常使用。在这项工作中,环保生产的部分氧化石墨烯纳米片（POGNs）被绿色溶剂（如1-抗坏血酸）还原为rGNs被提议提供基于玻璃纤维复合材料或涂覆的2024AlT3的功能性涂层，以解决航空工业中的战略研发问题，即，低能耗生产，除冰,和水的吸收。详细来说,通过粉末电导率的响应面建模评估rGNs生产中的能源效率，因此提出了一个优化的减少窗口。通过测量基于rGN的复合材料在24小时内的稳定电热性能来验证除冰功能。通过评估电化学和腐蚀特性来阐明水的吸收。此外，提出了一个数学模型来描述层的薄层电阻和每面积应用的rGNs质量之间的关系，将该系统扩展到其他石墨烯相关材料，导电二维材料，和各种基材。最后，提出的基于rGNs和环氧树脂的系统为未来的多功能涂料铺平了道路，能够增强表面的抵抗力，如飞机机翼，在恶劣的飞行环境中。
