Frontiers in Materials ( IF 2.6 ) Pub Date : 2020-05-26 , DOI: 10.3389/fmats.2020.00197 Maria F. Pantano , Roberta Tatti , Lucrezia Aversa , Roberto Verucchi , Nicola M. Pugno
Spider silk is one of the most fascinating natural materials, owing to its outstanding mechanical properties. In fact, it is able to combine usually self-excluding properties, like strength and toughness that synthetic fibers fail to replicate. Here, we report a method to further enhance the already excellent mechanical properties of spider's silk, producing nanocomposite fibers where the matrix of spider silk is reinforced with C60 molecules. These are deposited by Supersonic Molecular Beam Epitaxy (SuMBE) and are able to efficiently interact with silk, as evidenced by XPS analysis. As a consequence, upon proper adjustment of the fullerene kinetic energy, the treated fibers show improved strength, Young's modulus and toughness.
中文翻译:
C60超音速分子束外延使蜘蛛丝的力学性能加倍
蜘蛛丝由于其出色的机械性能而成为最迷人的天然材料之一。实际上,它能够结合通常自我排斥的特性,例如合成纤维无法复制的强度和韧性。在这里,我们报告了一种进一步增强蜘蛛丝本已优异的机械性能,生产纳米复合纤维的方法,其中蜘蛛丝的基质被C 60分子增强。这些由超音速分子束外延(SuMBE)沉积,并能够有效地与丝绸相互作用,如XPS分析所证明。结果,通过适当地调节富勒烯动能,处理后的纤维显示出改善的强度,杨氏模量和韧性。