Artyukov Igor, Bellucci Stefano, Kolesov Vladimir, Levin Vadim, Morokov Egor, Polikarpov Maxim, Petronyuk Yulia
X-ray Optics Laboratory, Lebedev Physical Institute, Russian Academy of Sciences, 119991 Moscow, Russia.
INFN-Laboratori Nazionali di Frascati, 00044 Frascati, Italy.
Polymers (Basel). 2024 May 10;16(10):1354. doi: 10.3390/polym16101354.
The in situ study of fractal microstructure in nanocarbon polymers is an actual task for their application and for the improvement in their functional properties. This article presents a visualization of the bulk structural features of the composites using pulsed acoustic microscopy and synchrotron X-ray microtomography. This article presents details of fractal structure formation using carbon particles of different sizes and shapes-exfoliated graphite, carbon platelets and nanotubes. Individual structural elements of the composite, i.e., conglomerations of the particles in the air capsule as well as their distribution in the composite volume, were observed at the micro- and nanoscale. We have considered the influence of particle architecture on the fractal formation and elastic properties of the composite. Acoustic and X-ray imaging results were compared to validate the carbon agglomeration.
对纳米碳聚合物中分形微观结构的原位研究，对于它们的应用以及功能特性的改善来说是一项实际任务。本文利用脉冲声学显微镜和同步加速器X射线显微断层成像技术，展示了复合材料整体结构特征的可视化情况。本文介绍了使用不同尺寸和形状的碳颗粒（膨胀石墨、碳片和纳米管）形成分形结构的细节。在微米和纳米尺度上观察了复合材料的各个结构元素，即气腔中颗粒的团聚情况以及它们在复合材料体积中的分布。我们考虑了颗粒结构对复合材料分形形成和弹性性能的影响。对声学和X射线成像结果进行了比较，以验证碳团聚情况。
