Aspectos históricos e estudos das propriedades mecânicas de nanotubos de carbonos e grafinos

Abstract

The emphasis of this monograph is to present a study referring to carbon nanotubes (NTCs) and graphines (GyNTs). NTCs can be defined as the winding of a graphene sheet or graphite itself. Based on theoretical information, we study the mechanical properties of nanotubes. We verified the behavior of tubes when subjected to deformations and studied the dynamic structural evolution through stress-strain curves. Through the Stress-strain graph, we can see several regimes that express the behavior of the structure under longitudinal stress. We analyze some fundamental critical points that characterize the structural changes, as well as the presence of a maximum critical point characterized by the rupture or restructuring of the tubes. This work, in addition to covering information about the discovery of carbon nanotubes, addresses some of their applications. The discovery of CNTs dates back to 1991 by Iijima. This discovery favored the emergence of several works related to this area, allowing the development of studies on the configurations and properties of nanotubes. However, the study of nanotubes triggered a series of applications that broke the barriers between sciences (interdisciplinarity between biological, chemical, physical, pharmacology and medicine sciences). To carry out this research, articles and monographs that address the topic were used