用蜘蛛纺出的石墨烯或碳纳米管增强的丝绸
Silk reinforced with graphene or carbon nanotubes spun by spiders
摘要:
在这里,我们报告了在用相应的水性分散体喷涂蜘蛛之后,直接通过蜘蛛纺丝生产包含石墨烯和碳纳米管的丝。我们观察到一个显着的增量的机械性能相对于原始丝,断裂强度,杨氏模量和韧性模量。我们测量的断裂强度高达5.4 GPa,杨氏模量高达47.8 GPa,韧性模量高达2.1 GPa,或1567 J/g,据我们所知,这是迄今为止报道的最高值,即使与目前最坚韧的打结纤维相比。这种方法可以扩展到其他动物和植物,并可能导致一类新的仿生材料的最终应用。
英文摘要:
Here, we report the production of silk incorporating graphene and carbon nanotubes directly by spider spinning, after spraying spiders with the corresponding aqueous dispersions. We observe a significant increment of the mechanical properties with respect to the pristine silk, in terms of fracture strength, Young's and toughness moduli. We measure a fracture strength up to 5.4 GPa, a Young's modulus up to 47.8 GPa and a toughness modulus up to 2.1 GPa, or 1567 J/g, which, to the best of our knowledge, is the highest reported to date, even when compared to the current toughest knotted fibres. This approach could be extended to other animals and plants and could lead to a new class of bionic materials for ultimate applications.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。