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首页> 外文期刊>Polymers for advanced technologies >Influence of graphene nanoscrolls on the crystallization behavior and nano‐mechanical properties of polylactic acid
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Influence of graphene nanoscrolls on the crystallization behavior and nano‐mechanical properties of polylactic acid

机译：石墨烯纳米轴对聚乳酸结晶行为和纳米力学性能的影响

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>Graphene nanoscrolls (GNS), one‐dimensional carbon‐based nanomaterials, have been predicted to possess extraordinary characteristics due to their unique open topology with scrolled graphene monolayers. In this study, the conversion of planar 2‐D graphene nanoplatelets (GNPs) to tubular and scrolled 1‐D GNSs is described. The effects of GNS as a nucleating agent to modulate the morphology, crystallization, and nano‐mechanical properties of polylactic acid (PLA) were studied. The nucleating effect of GNS and its unique topological characteristics proves to influence the crystallization of PLA. Fourier transform infrared (FTIR) spectroscopy indicated nonpreferential interactions of PLA chains around GNS due to the bulky and helical PLA macromolecular chains. Superior interfacial interactions and strain in GNS provide better load transfer between GNS and PLA matrices, resulting in higher modulus and hardness. This study is the first detailed analysis to elucidate the role of unique GNS to favorably modulate the properties of a polymer.
机译： >石墨烯纳米卷（GNS），一维碳基纳米材料预测，由于它们与滚动的石墨烯单层的独特开放拓扑结构具有非凡的特性。在该研究中，描述了平面2-D石墨烯纳米片（GNP）与管状和滚动的1-D GNS的转化。研究了GNS作为调节形态，结晶和纳米力学性能的成核剂的作用，是研究了聚乳酸（PLA）的形态学，结晶和纳米力学性能。 GNS的成核效果及其独特的拓扑特征证明了影响PLA的结晶。傅里叶变换红外（FTIR）光谱表明，由于笨重和螺旋PLA大分子链，PLA链周围的PLA链的非偶位相互作用。 GNS中卓越的界面相互作用和应变在GNS和PLA矩阵之间提供更好的负载传递，导致更高的模量和硬度。本研究是第一次详细分析，以阐明独特GNS的作用，有利地调节聚合物的性质。

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