| Texto completo | |
| Autor(es): |
Thomazini, Luis F. V.
;
Fonseca, Alexandre F. F.
Número total de Autores: 2
|
| Tipo de documento: | Artigo Científico |
| Fonte: | RS ADVANCE; v. 8, n. 7, p. 6-pg., 2023-03-24. |
| Resumo | |
Macroscopic assemblies of carbon nanotubes (CNTs) are desirable materials because of the excellent CNT properties. Among the methods of production of these CNT materials, the dry-draw fabrication where CNT fibers (CNTFs) are directly pulled out from a CNT forest is known to provide good physical properties. Although it is known that vertical alignment of CNT bundles within the CNT forest is important, the mechanisms behind the dry-draw fabrication of CNTFs are still not completely understood. The simplest known dry-draw model consists of CNT bundles laterally interacting by only van der Waals forces (vdWf). Here, by fully atomistic classical molecular dynamics simulations, we show that the simplest dry-draw model does not produce CNTFs. We also show one important condition for a pair of adjacent CNT bundles to connect themselves under vdWf only and discuss why it leads to the failure of the simplest model. (AU) | |
| Processo FAPESP: | 20/02044-9 - Simulação e modelagem de propriedades físicas de materiais |
| Beneficiário: | Alexandre Fontes da Fonseca |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |